[coreboot-gerrit] Patch set updated for coreboot: mainboard: Remove last_boot NVRAM option

Timothy Pearson (tpearson@raptorengineeringinc.com) gerrit at coreboot.org
Wed Nov 4 19:04:30 CET 2015


Timothy Pearson (tpearson at raptorengineeringinc.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/12316

-gerrit

commit 7acea773d7ed4c3632ebd50a4d43320799ccefbd
Author: Timothy Pearson <tpearson at raptorengineeringinc.com>
Date:   Tue Nov 3 17:02:25 2015 -0600

    mainboard: Remove last_boot NVRAM option
    
    The last_boot NVRAM option was deprecated and removed in
    commit 3bfd7cc6.  Remove the last_boot option from all
    affected mainboards to eliminate user confusion.
    
    Change-Id: I7e201b9cf21dfe5dda156785bad078524098626d
    Signed-off-by: Timothy Pearson <tpearson at raptorengineeringinc.com>
---
 src/mainboard/advansus/a785e-i/cmos.layout            | 1 -
 src/mainboard/amd/bettong/cmos.layout                 | 1 -
 src/mainboard/amd/bimini_fam10/cmos.layout            | 1 -
 src/mainboard/amd/db800/cmos.layout                   | 1 -
 src/mainboard/amd/dbm690t/cmos.layout                 | 1 -
 src/mainboard/amd/dinar/cmos.layout                   | 1 -
 src/mainboard/amd/inagua/cmos.layout                  | 1 -
 src/mainboard/amd/lamar/cmos.layout                   | 1 -
 src/mainboard/amd/mahogany/cmos.layout                | 1 -
 src/mainboard/amd/mahogany_fam10/cmos.layout          | 1 -
 src/mainboard/amd/norwich/cmos.layout                 | 1 -
 src/mainboard/amd/olivehill/cmos.layout               | 1 -
 src/mainboard/amd/olivehillplus/cmos.layout           | 1 -
 src/mainboard/amd/parmer/cmos.layout                  | 1 -
 src/mainboard/amd/persimmon/cmos.layout               | 1 -
 src/mainboard/amd/pistachio/cmos.layout               | 1 -
 src/mainboard/amd/rumba/cmos.layout                   | 1 -
 src/mainboard/amd/serengeti_cheetah/cmos.layout       | 1 -
 src/mainboard/amd/serengeti_cheetah_fam10/cmos.layout | 1 -
 src/mainboard/amd/south_station/cmos.layout           | 1 -
 src/mainboard/amd/thatcher/cmos.layout                | 1 -
 src/mainboard/amd/tilapia_fam10/cmos.layout           | 1 -
 src/mainboard/amd/torpedo/cmos.layout                 | 1 -
 src/mainboard/amd/union_station/cmos.layout           | 1 -
 src/mainboard/apple/macbook21/cmos.default            | 1 -
 src/mainboard/apple/macbook21/cmos.layout             | 1 -
 src/mainboard/arima/hdama/cmos.layout                 | 1 -
 src/mainboard/artecgroup/dbe61/cmos.layout            | 1 -
 src/mainboard/asrock/939a785gmh/cmos.layout           | 1 -
 src/mainboard/asrock/e350m1/cmos.layout               | 1 -
 src/mainboard/asrock/imb-a180/cmos.layout             | 1 -
 src/mainboard/asus/a8n_e/cmos.default                 | 1 -
 src/mainboard/asus/a8n_e/cmos.layout                  | 1 -
 src/mainboard/asus/a8v-e_deluxe/cmos.layout           | 1 -
 src/mainboard/asus/a8v-e_se/cmos.layout               | 1 -
 src/mainboard/asus/dsbf/cmos.layout                   | 1 -
 src/mainboard/asus/f2a85-m/cmos.layout                | 1 -
 src/mainboard/asus/f2a85-m_le/cmos.layout             | 1 -
 src/mainboard/asus/k8v-x/cmos.layout                  | 1 -
 src/mainboard/asus/kfsn4-dre/cmos.layout              | 1 -
 src/mainboard/asus/kfsn4-dre_k8/cmos.layout           | 1 -
 src/mainboard/asus/kgpe-d16/cmos.layout               | 1 -
 src/mainboard/asus/m2n-e/cmos.layout                  | 1 -
 src/mainboard/asus/m2v-mx_se/cmos.layout              | 1 -
 src/mainboard/asus/m2v/cmos.layout                    | 1 -
 src/mainboard/asus/m4a78-em/cmos.layout               | 1 -
 src/mainboard/asus/m4a785-m/cmos.layout               | 1 -
 src/mainboard/asus/m4a785t-m/cmos.default             | 1 -
 src/mainboard/asus/m4a785t-m/cmos.layout              | 1 -
 src/mainboard/asus/m5a88-v/cmos.layout                | 1 -
 src/mainboard/asus/mew-vm/cmos.layout                 | 1 -
 src/mainboard/avalue/eax-785e/cmos.layout             | 1 -
 src/mainboard/bachmann/ot200/cmos.default             | 1 -
 src/mainboard/bachmann/ot200/cmos.layout              | 1 -
 src/mainboard/bap/ode_e20XX/cmos.layout               | 1 -
 src/mainboard/bcom/winnetp680/cmos.layout             | 1 -
 src/mainboard/biostar/am1ml/cmos.layout               | 1 -
 src/mainboard/broadcom/blast/cmos.layout              | 1 -
 src/mainboard/digitallogic/adl855pc/cmos.layout       | 1 -
 src/mainboard/digitallogic/msm800sev/cmos.layout      | 1 -
 src/mainboard/emulation/qemu-i440fx/cmos.layout       | 1 -
 src/mainboard/getac/p470/cmos.layout                  | 1 -
 src/mainboard/gigabyte/ga-b75m-d3h/cmos.default       | 1 -
 src/mainboard/gigabyte/ga-b75m-d3h/cmos.layout        | 1 -
 src/mainboard/gigabyte/ga-b75m-d3v/cmos.default       | 1 -
 src/mainboard/gigabyte/ga-b75m-d3v/cmos.layout        | 1 -
 src/mainboard/gigabyte/ga_2761gxdk/cmos.layout        | 1 -
 src/mainboard/gigabyte/m57sli/cmos.layout             | 1 -
 src/mainboard/gigabyte/ma785gm/cmos.layout            | 1 -
 src/mainboard/gigabyte/ma785gmt/cmos.layout           | 1 -
 src/mainboard/gigabyte/ma78gm/cmos.layout             | 1 -
 src/mainboard/gizmosphere/gizmo/cmos.layout           | 1 -
 src/mainboard/gizmosphere/gizmo2/cmos.layout          | 1 -
 src/mainboard/google/auron/cmos.layout                | 1 -
 src/mainboard/google/bolt/cmos.layout                 | 1 -
 src/mainboard/google/butterfly/cmos.default           | 1 -
 src/mainboard/google/butterfly/cmos.layout            | 1 -
 src/mainboard/google/chell/cmos.layout                | 1 -
 src/mainboard/google/cyan/cmos.layout                 | 1 -
 src/mainboard/google/falco/cmos.layout                | 1 -
 src/mainboard/google/glados/cmos.layout               | 1 -
 src/mainboard/google/jecht/cmos.layout                | 1 -
 src/mainboard/google/lars/cmos.layout                 | 1 -
 src/mainboard/google/link/cmos.layout                 | 1 -
 src/mainboard/google/panther/cmos.layout              | 1 -
 src/mainboard/google/parrot/cmos.layout               | 1 -
 src/mainboard/google/peppy/cmos.layout                | 1 -
 src/mainboard/google/rambi/cmos.layout                | 1 -
 src/mainboard/google/samus/cmos.layout                | 1 -
 src/mainboard/google/slippy/cmos.layout               | 1 -
 src/mainboard/google/stout/cmos.default               | 1 -
 src/mainboard/google/stout/cmos.layout                | 1 -
 src/mainboard/hp/abm/cmos.layout                      | 1 -
 src/mainboard/hp/dl145_g1/cmos.layout                 | 1 -
 src/mainboard/hp/dl145_g3/cmos.layout                 | 1 -
 src/mainboard/hp/dl165_g6_fam10/cmos.layout           | 1 -
 src/mainboard/hp/pavilion_m6_1035dx/cmos.default      | 1 -
 src/mainboard/hp/pavilion_m6_1035dx/cmos.layout       | 1 -
 src/mainboard/ibase/mb899/cmos.layout                 | 1 -
 src/mainboard/ibm/e325/cmos.layout                    | 1 -
 src/mainboard/ibm/e326/cmos.layout                    | 1 -
 src/mainboard/iei/kino-780am2-fam10/cmos.layout       | 1 -
 src/mainboard/intel/baskingridge/cmos.layout          | 1 -
 src/mainboard/intel/bayleybay_fsp/cmos.layout         | 1 -
 src/mainboard/intel/cougar_canyon2/cmos.layout        | 1 -
 src/mainboard/intel/d945gclf/cmos.layout              | 1 -
 src/mainboard/intel/eagleheights/cmos.layout          | 1 -
 src/mainboard/intel/emeraldlake2/cmos.layout          | 1 -
 src/mainboard/intel/kunimitsu/cmos.layout             | 1 -
 src/mainboard/intel/minnowmax/cmos.layout             | 1 -
 src/mainboard/intel/mohonpeak/cmos.layout             | 1 -
 src/mainboard/intel/sklrvp/cmos.layout                | 1 -
 src/mainboard/intel/strago/cmos.layout                | 1 -
 src/mainboard/intel/wtm2/cmos.layout                  | 1 -
 src/mainboard/iwave/iWRainbowG6/cmos.layout           | 1 -
 src/mainboard/iwill/dk8_htx/cmos.layout               | 1 -
 src/mainboard/iwill/dk8s2/cmos.layout                 | 1 -
 src/mainboard/iwill/dk8x/cmos.layout                  | 1 -
 src/mainboard/jetway/j7f2/cmos.layout                 | 1 -
 src/mainboard/jetway/nf81-t56n-lf/cmos.layout         | 1 -
 src/mainboard/jetway/pa78vm5/cmos.layout              | 1 -
 src/mainboard/kontron/986lcd-m/cmos.layout            | 1 -
 src/mainboard/kontron/kt690/cmos.layout               | 1 -
 src/mainboard/kontron/ktqm77/cmos.layout              | 1 -
 src/mainboard/lanner/em8510/cmos.layout               | 1 -
 src/mainboard/lenovo/g505s/cmos.layout                | 1 -
 src/mainboard/lenovo/t400/cmos.default                | 1 -
 src/mainboard/lenovo/t400/cmos.layout                 | 1 -
 src/mainboard/lenovo/t420s/cmos.default               | 1 -
 src/mainboard/lenovo/t420s/cmos.layout                | 1 -
 src/mainboard/lenovo/t430s/cmos.default               | 1 -
 src/mainboard/lenovo/t430s/cmos.layout                | 1 -
 src/mainboard/lenovo/t520/cmos.default                | 1 -
 src/mainboard/lenovo/t520/cmos.layout                 | 1 -
 src/mainboard/lenovo/t530/cmos.default                | 1 -
 src/mainboard/lenovo/t530/cmos.layout                 | 1 -
 src/mainboard/lenovo/t60/cmos.default                 | 1 -
 src/mainboard/lenovo/t60/cmos.layout                  | 1 -
 src/mainboard/lenovo/x200/cmos.default                | 1 -
 src/mainboard/lenovo/x200/cmos.layout                 | 1 -
 src/mainboard/lenovo/x201/cmos.default                | 1 -
 src/mainboard/lenovo/x201/cmos.layout                 | 1 -
 src/mainboard/lenovo/x220/cmos.default                | 1 -
 src/mainboard/lenovo/x220/cmos.layout                 | 1 -
 src/mainboard/lenovo/x230/cmos.default                | 1 -
 src/mainboard/lenovo/x230/cmos.layout                 | 1 -
 src/mainboard/lenovo/x60/cmos.default                 | 1 -
 src/mainboard/lenovo/x60/cmos.layout                  | 1 -
 src/mainboard/lippert/frontrunner-af/cmos.layout      | 1 -
 src/mainboard/lippert/frontrunner/cmos.layout         | 1 -
 src/mainboard/lippert/toucan-af/cmos.layout           | 1 -
 src/mainboard/msi/ms7135/cmos.layout                  | 1 -
 src/mainboard/msi/ms7260/cmos.layout                  | 1 -
 src/mainboard/msi/ms9185/cmos.layout                  | 1 -
 src/mainboard/msi/ms9282/cmos.layout                  | 1 -
 src/mainboard/msi/ms9652_fam10/cmos.layout            | 1 -
 src/mainboard/newisys/khepri/cmos.layout              | 1 -
 src/mainboard/nvidia/l1_2pvv/cmos.layout              | 1 -
 src/mainboard/packardbell/ms2290/cmos.default         | 1 -
 src/mainboard/packardbell/ms2290/cmos.layout          | 1 -
 src/mainboard/pcengines/alix1c/cmos.default           | 1 -
 src/mainboard/pcengines/alix1c/cmos.layout            | 1 -
 src/mainboard/pcengines/alix2d/cmos.layout            | 1 -
 src/mainboard/pcengines/apu1/cmos.default             | 1 -
 src/mainboard/pcengines/apu1/cmos.layout              | 3 +--
 src/mainboard/roda/rk886ex/cmos.layout                | 1 -
 src/mainboard/roda/rk9/cmos.layout                    | 1 -
 src/mainboard/samsung/lumpy/cmos.layout               | 1 -
 src/mainboard/samsung/stumpy/cmos.layout              | 1 -
 src/mainboard/siemens/mc_tcu3/cmos.layout             | 1 -
 src/mainboard/siemens/sitemp_g1p1/cmos.default        | 1 -
 src/mainboard/siemens/sitemp_g1p1/cmos.layout         | 1 -
 src/mainboard/sunw/ultra40/cmos.layout                | 1 -
 src/mainboard/supermicro/h8dme/cmos.layout            | 1 -
 src/mainboard/supermicro/h8dmr/cmos.layout            | 1 -
 src/mainboard/supermicro/h8dmr_fam10/cmos.layout      | 1 -
 src/mainboard/supermicro/h8qgi/cmos.layout            | 1 -
 src/mainboard/supermicro/h8qme_fam10/cmos.layout      | 1 -
 src/mainboard/supermicro/h8scm/cmos.layout            | 1 -
 src/mainboard/supermicro/h8scm_fam10/cmos.layout      | 1 -
 src/mainboard/supermicro/x7db8/cmos.layout            | 1 -
 src/mainboard/technexion/tim5690/cmos.layout          | 1 -
 src/mainboard/technexion/tim8690/cmos.layout          | 1 -
 src/mainboard/traverse/geos/cmos.layout               | 1 -
 src/mainboard/tyan/s2735/cmos.layout                  | 1 -
 src/mainboard/tyan/s2850/cmos.layout                  | 1 -
 src/mainboard/tyan/s2875/cmos.layout                  | 1 -
 src/mainboard/tyan/s2880/cmos.layout                  | 1 -
 src/mainboard/tyan/s2881/cmos.layout                  | 1 -
 src/mainboard/tyan/s2882/cmos.layout                  | 1 -
 src/mainboard/tyan/s2885/cmos.layout                  | 1 -
 src/mainboard/tyan/s2891/cmos.layout                  | 1 -
 src/mainboard/tyan/s2892/cmos.layout                  | 1 -
 src/mainboard/tyan/s2895/cmos.layout                  | 1 -
 src/mainboard/tyan/s2912/cmos.layout                  | 1 -
 src/mainboard/tyan/s2912_fam10/cmos.layout            | 1 -
 src/mainboard/tyan/s4880/cmos.layout                  | 1 -
 src/mainboard/tyan/s4882/cmos.layout                  | 1 -
 src/mainboard/tyan/s8226/cmos.layout                  | 1 -
 src/mainboard/via/epia-cn/cmos.layout                 | 1 -
 src/mainboard/via/epia-m700/cmos.layout               | 1 -
 src/mainboard/via/pc2500e/cmos.layout                 | 1 -
 src/mainboard/via/vt8454c/cmos.layout                 | 1 -
 src/mainboard/winent/mb6047/cmos.layout               | 1 -
 src/mainboard/winent/pl6064/cmos.layout               | 1 -
 src/mainboard/wyse/s50/cmos.layout                    | 1 -
 206 files changed, 1 insertion(+), 207 deletions(-)

diff --git a/src/mainboard/advansus/a785e-i/cmos.layout b/src/mainboard/advansus/a785e-i/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/advansus/a785e-i/cmos.layout
+++ b/src/mainboard/advansus/a785e-i/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/bettong/cmos.layout b/src/mainboard/amd/bettong/cmos.layout
index f5dd350..ba44a24 100644
--- a/src/mainboard/amd/bettong/cmos.layout
+++ b/src/mainboard/amd/bettong/cmos.layout
@@ -41,7 +41,6 @@ entries
 #96         288       r       0        temporary_filler
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 386          1       e       1        ECC_memory
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
diff --git a/src/mainboard/amd/bimini_fam10/cmos.layout b/src/mainboard/amd/bimini_fam10/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/amd/bimini_fam10/cmos.layout
+++ b/src/mainboard/amd/bimini_fam10/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/db800/cmos.layout b/src/mainboard/amd/db800/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/amd/db800/cmos.layout
+++ b/src/mainboard/amd/db800/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/amd/dbm690t/cmos.layout b/src/mainboard/amd/dbm690t/cmos.layout
index 25bad99..4e9d62c 100644
--- a/src/mainboard/amd/dbm690t/cmos.layout
+++ b/src/mainboard/amd/dbm690t/cmos.layout
@@ -19,7 +19,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/dinar/cmos.layout b/src/mainboard/amd/dinar/cmos.layout
index 1a25edd..bf617ae 100644
--- a/src/mainboard/amd/dinar/cmos.layout
+++ b/src/mainboard/amd/dinar/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/inagua/cmos.layout b/src/mainboard/amd/inagua/cmos.layout
index f53ce6d..f47185f 100644
--- a/src/mainboard/amd/inagua/cmos.layout
+++ b/src/mainboard/amd/inagua/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/lamar/cmos.layout b/src/mainboard/amd/lamar/cmos.layout
index 2cce75e..9663cdb 100644
--- a/src/mainboard/amd/lamar/cmos.layout
+++ b/src/mainboard/amd/lamar/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/amd/mahogany/cmos.layout b/src/mainboard/amd/mahogany/cmos.layout
index afd6aae..64832c1 100644
--- a/src/mainboard/amd/mahogany/cmos.layout
+++ b/src/mainboard/amd/mahogany/cmos.layout
@@ -19,7 +19,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/mahogany_fam10/cmos.layout b/src/mainboard/amd/mahogany_fam10/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/amd/mahogany_fam10/cmos.layout
+++ b/src/mainboard/amd/mahogany_fam10/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/norwich/cmos.layout b/src/mainboard/amd/norwich/cmos.layout
index 0bcfaf8..6a030e6 100644
--- a/src/mainboard/amd/norwich/cmos.layout
+++ b/src/mainboard/amd/norwich/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/amd/olivehill/cmos.layout b/src/mainboard/amd/olivehill/cmos.layout
index 66d1707..d83bb14 100644
--- a/src/mainboard/amd/olivehill/cmos.layout
+++ b/src/mainboard/amd/olivehill/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/olivehillplus/cmos.layout b/src/mainboard/amd/olivehillplus/cmos.layout
index 66d1707..d83bb14 100644
--- a/src/mainboard/amd/olivehillplus/cmos.layout
+++ b/src/mainboard/amd/olivehillplus/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/parmer/cmos.layout b/src/mainboard/amd/parmer/cmos.layout
index 66d1707..d83bb14 100644
--- a/src/mainboard/amd/parmer/cmos.layout
+++ b/src/mainboard/amd/parmer/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/persimmon/cmos.layout b/src/mainboard/amd/persimmon/cmos.layout
index f53ce6d..f47185f 100644
--- a/src/mainboard/amd/persimmon/cmos.layout
+++ b/src/mainboard/amd/persimmon/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/pistachio/cmos.layout b/src/mainboard/amd/pistachio/cmos.layout
index 25bad99..4e9d62c 100644
--- a/src/mainboard/amd/pistachio/cmos.layout
+++ b/src/mainboard/amd/pistachio/cmos.layout
@@ -19,7 +19,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/rumba/cmos.layout b/src/mainboard/amd/rumba/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/amd/rumba/cmos.layout
+++ b/src/mainboard/amd/rumba/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/amd/serengeti_cheetah/cmos.layout b/src/mainboard/amd/serengeti_cheetah/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/amd/serengeti_cheetah/cmos.layout
+++ b/src/mainboard/amd/serengeti_cheetah/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/serengeti_cheetah_fam10/cmos.layout b/src/mainboard/amd/serengeti_cheetah_fam10/cmos.layout
index 8eb0631..14e45ef 100644
--- a/src/mainboard/amd/serengeti_cheetah_fam10/cmos.layout
+++ b/src/mainboard/amd/serengeti_cheetah_fam10/cmos.layout
@@ -20,7 +20,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 393          3       e       5        baud_rate
 396          5       e       10       ecc_scrub_rate
diff --git a/src/mainboard/amd/south_station/cmos.layout b/src/mainboard/amd/south_station/cmos.layout
index f53ce6d..f47185f 100644
--- a/src/mainboard/amd/south_station/cmos.layout
+++ b/src/mainboard/amd/south_station/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/thatcher/cmos.layout b/src/mainboard/amd/thatcher/cmos.layout
index 66d1707..d83bb14 100644
--- a/src/mainboard/amd/thatcher/cmos.layout
+++ b/src/mainboard/amd/thatcher/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/tilapia_fam10/cmos.layout b/src/mainboard/amd/tilapia_fam10/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/amd/tilapia_fam10/cmos.layout
+++ b/src/mainboard/amd/tilapia_fam10/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/torpedo/cmos.layout b/src/mainboard/amd/torpedo/cmos.layout
index f53ce6d..f47185f 100644
--- a/src/mainboard/amd/torpedo/cmos.layout
+++ b/src/mainboard/amd/torpedo/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/amd/union_station/cmos.layout b/src/mainboard/amd/union_station/cmos.layout
index f53ce6d..f47185f 100644
--- a/src/mainboard/amd/union_station/cmos.layout
+++ b/src/mainboard/amd/union_station/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/apple/macbook21/cmos.default b/src/mainboard/apple/macbook21/cmos.default
index e0b992c..37018a4 100644
--- a/src/mainboard/apple/macbook21/cmos.default
+++ b/src/mainboard/apple/macbook21/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 hyper_threading=Enable
diff --git a/src/mainboard/apple/macbook21/cmos.layout b/src/mainboard/apple/macbook21/cmos.layout
index e2b5a4e..c11997c 100644
--- a/src/mainboard/apple/macbook21/cmos.layout
+++ b/src/mainboard/apple/macbook21/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       h       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/arima/hdama/cmos.layout b/src/mainboard/arima/hdama/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/arima/hdama/cmos.layout
+++ b/src/mainboard/arima/hdama/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/artecgroup/dbe61/cmos.layout b/src/mainboard/artecgroup/dbe61/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/artecgroup/dbe61/cmos.layout
+++ b/src/mainboard/artecgroup/dbe61/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/asrock/939a785gmh/cmos.layout b/src/mainboard/asrock/939a785gmh/cmos.layout
index afd6aae..64832c1 100644
--- a/src/mainboard/asrock/939a785gmh/cmos.layout
+++ b/src/mainboard/asrock/939a785gmh/cmos.layout
@@ -19,7 +19,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/asrock/e350m1/cmos.layout b/src/mainboard/asrock/e350m1/cmos.layout
index 6bc58ed..83de4da 100644
--- a/src/mainboard/asrock/e350m1/cmos.layout
+++ b/src/mainboard/asrock/e350m1/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/asrock/imb-a180/cmos.layout b/src/mainboard/asrock/imb-a180/cmos.layout
index 66d1707..d83bb14 100644
--- a/src/mainboard/asrock/imb-a180/cmos.layout
+++ b/src/mainboard/asrock/imb-a180/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/asus/a8n_e/cmos.default b/src/mainboard/asus/a8n_e/cmos.default
index 933c804..520f237 100644
--- a/src/mainboard/asus/a8n_e/cmos.default
+++ b/src/mainboard/asus/a8n_e/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 power_on_after_fail=Enable
diff --git a/src/mainboard/asus/a8n_e/cmos.layout b/src/mainboard/asus/a8n_e/cmos.layout
index 7cb0a8b..90e3e94 100644
--- a/src/mainboard/asus/a8n_e/cmos.layout
+++ b/src/mainboard/asus/a8n_e/cmos.layout
@@ -1,7 +1,6 @@
 entries
     0 384 r 0 reserved_memory
     384 1 e 4 boot_option
-    385 1 e 4 last_boot
     386 1 e 1 ECC_memory
     388 4 r 0 reboot_bits
     392 3 e 5 baud_rate
diff --git a/src/mainboard/asus/a8v-e_deluxe/cmos.layout b/src/mainboard/asus/a8v-e_deluxe/cmos.layout
index 5edb3e4..7cf0369 100644
--- a/src/mainboard/asus/a8v-e_deluxe/cmos.layout
+++ b/src/mainboard/asus/a8v-e_deluxe/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/asus/a8v-e_se/cmos.layout b/src/mainboard/asus/a8v-e_se/cmos.layout
index 5edb3e4..7cf0369 100644
--- a/src/mainboard/asus/a8v-e_se/cmos.layout
+++ b/src/mainboard/asus/a8v-e_se/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/asus/dsbf/cmos.layout b/src/mainboard/asus/dsbf/cmos.layout
index a6328d1..2bccce8 100644
--- a/src/mainboard/asus/dsbf/cmos.layout
+++ b/src/mainboard/asus/dsbf/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/asus/f2a85-m/cmos.layout b/src/mainboard/asus/f2a85-m/cmos.layout
index 66d1707..d83bb14 100644
--- a/src/mainboard/asus/f2a85-m/cmos.layout
+++ b/src/mainboard/asus/f2a85-m/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/asus/f2a85-m_le/cmos.layout b/src/mainboard/asus/f2a85-m_le/cmos.layout
index 66d1707..d83bb14 100644
--- a/src/mainboard/asus/f2a85-m_le/cmos.layout
+++ b/src/mainboard/asus/f2a85-m_le/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/asus/k8v-x/cmos.layout b/src/mainboard/asus/k8v-x/cmos.layout
index 5edb3e4..7cf0369 100644
--- a/src/mainboard/asus/k8v-x/cmos.layout
+++ b/src/mainboard/asus/k8v-x/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/asus/kfsn4-dre/cmos.layout b/src/mainboard/asus/kfsn4-dre/cmos.layout
index 3c7fe4b..66bc3a0 100644
--- a/src/mainboard/asus/kfsn4-dre/cmos.layout
+++ b/src/mainboard/asus/kfsn4-dre/cmos.layout
@@ -20,7 +20,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 393          3       e       5        baud_rate
 396          5       e       10       ecc_scrub_rate
diff --git a/src/mainboard/asus/kfsn4-dre_k8/cmos.layout b/src/mainboard/asus/kfsn4-dre_k8/cmos.layout
index 95d2914..9b26123 100644
--- a/src/mainboard/asus/kfsn4-dre_k8/cmos.layout
+++ b/src/mainboard/asus/kfsn4-dre_k8/cmos.layout
@@ -20,7 +20,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 393          3       e       5        baud_rate
 396          1       e       1        hw_scrubber
diff --git a/src/mainboard/asus/kgpe-d16/cmos.layout b/src/mainboard/asus/kgpe-d16/cmos.layout
index c672e09..fbda5e0 100644
--- a/src/mainboard/asus/kgpe-d16/cmos.layout
+++ b/src/mainboard/asus/kgpe-d16/cmos.layout
@@ -20,7 +20,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 393          3       e       5        baud_rate
 396          5       e       10       ecc_scrub_rate
diff --git a/src/mainboard/asus/m2n-e/cmos.layout b/src/mainboard/asus/m2n-e/cmos.layout
index 42b3b7d..da60299 100644
--- a/src/mainboard/asus/m2n-e/cmos.layout
+++ b/src/mainboard/asus/m2n-e/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/asus/m2v-mx_se/cmos.layout b/src/mainboard/asus/m2v-mx_se/cmos.layout
index 23338a9..b74079d 100644
--- a/src/mainboard/asus/m2v-mx_se/cmos.layout
+++ b/src/mainboard/asus/m2v-mx_se/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/asus/m2v/cmos.layout b/src/mainboard/asus/m2v/cmos.layout
index 5edb3e4..7cf0369 100644
--- a/src/mainboard/asus/m2v/cmos.layout
+++ b/src/mainboard/asus/m2v/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/asus/m4a78-em/cmos.layout b/src/mainboard/asus/m4a78-em/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/asus/m4a78-em/cmos.layout
+++ b/src/mainboard/asus/m4a78-em/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/asus/m4a785-m/cmos.layout b/src/mainboard/asus/m4a785-m/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/asus/m4a785-m/cmos.layout
+++ b/src/mainboard/asus/m4a785-m/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/asus/m4a785t-m/cmos.default b/src/mainboard/asus/m4a785t-m/cmos.default
index 8ab4fe8..1686102 100644
--- a/src/mainboard/asus/m4a785t-m/cmos.default
+++ b/src/mainboard/asus/m4a785t-m/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 ECC_memory=Enable
 baud_rate=115200
 hw_scrubber=Enable
diff --git a/src/mainboard/asus/m4a785t-m/cmos.layout b/src/mainboard/asus/m4a785t-m/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/asus/m4a785t-m/cmos.layout
+++ b/src/mainboard/asus/m4a785t-m/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/asus/m5a88-v/cmos.layout b/src/mainboard/asus/m5a88-v/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/asus/m5a88-v/cmos.layout
+++ b/src/mainboard/asus/m5a88-v/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/asus/mew-vm/cmos.layout b/src/mainboard/asus/mew-vm/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/asus/mew-vm/cmos.layout
+++ b/src/mainboard/asus/mew-vm/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/avalue/eax-785e/cmos.layout b/src/mainboard/avalue/eax-785e/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/avalue/eax-785e/cmos.layout
+++ b/src/mainboard/avalue/eax-785e/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/bachmann/ot200/cmos.default b/src/mainboard/bachmann/ot200/cmos.default
index 05eadbf..0b685c9 100644
--- a/src/mainboard/bachmann/ot200/cmos.default
+++ b/src/mainboard/bachmann/ot200/cmos.default
@@ -1,4 +1,3 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
diff --git a/src/mainboard/bachmann/ot200/cmos.layout b/src/mainboard/bachmann/ot200/cmos.layout
index 9290489..a04213d 100644
--- a/src/mainboard/bachmann/ot200/cmos.layout
+++ b/src/mainboard/bachmann/ot200/cmos.layout
@@ -20,7 +20,6 @@ entries
 0          384       r       0        reserved_memory
 
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 
 # -----------------------------------------------------------------
diff --git a/src/mainboard/bap/ode_e20XX/cmos.layout b/src/mainboard/bap/ode_e20XX/cmos.layout
index 66d1707..d83bb14 100644
--- a/src/mainboard/bap/ode_e20XX/cmos.layout
+++ b/src/mainboard/bap/ode_e20XX/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/bcom/winnetp680/cmos.layout b/src/mainboard/bcom/winnetp680/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/bcom/winnetp680/cmos.layout
+++ b/src/mainboard/bcom/winnetp680/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/biostar/am1ml/cmos.layout b/src/mainboard/biostar/am1ml/cmos.layout
index 503071e..d29e4d2 100644
--- a/src/mainboard/biostar/am1ml/cmos.layout
+++ b/src/mainboard/biostar/am1ml/cmos.layout
@@ -41,7 +41,6 @@ entries
 #96         288       r       0        temporary_filler
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 386          1       e       1        ECC_memory
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
diff --git a/src/mainboard/broadcom/blast/cmos.layout b/src/mainboard/broadcom/blast/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/broadcom/blast/cmos.layout
+++ b/src/mainboard/broadcom/blast/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/digitallogic/adl855pc/cmos.layout b/src/mainboard/digitallogic/adl855pc/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/digitallogic/adl855pc/cmos.layout
+++ b/src/mainboard/digitallogic/adl855pc/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/digitallogic/msm800sev/cmos.layout b/src/mainboard/digitallogic/msm800sev/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/digitallogic/msm800sev/cmos.layout
+++ b/src/mainboard/digitallogic/msm800sev/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/emulation/qemu-i440fx/cmos.layout b/src/mainboard/emulation/qemu-i440fx/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/emulation/qemu-i440fx/cmos.layout
+++ b/src/mainboard/emulation/qemu-i440fx/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/getac/p470/cmos.layout b/src/mainboard/getac/p470/cmos.layout
index 80df7b6..023bdfa 100644
--- a/src/mainboard/getac/p470/cmos.layout
+++ b/src/mainboard/getac/p470/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/gigabyte/ga-b75m-d3h/cmos.default b/src/mainboard/gigabyte/ga-b75m-d3h/cmos.default
index 21d75e5..767372c 100644
--- a/src/mainboard/gigabyte/ga-b75m-d3h/cmos.default
+++ b/src/mainboard/gigabyte/ga-b75m-d3h/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 power_on_after_fail=Enable
diff --git a/src/mainboard/gigabyte/ga-b75m-d3h/cmos.layout b/src/mainboard/gigabyte/ga-b75m-d3h/cmos.layout
index 3742cd2..32a3059 100644
--- a/src/mainboard/gigabyte/ga-b75m-d3h/cmos.layout
+++ b/src/mainboard/gigabyte/ga-b75m-d3h/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/gigabyte/ga-b75m-d3v/cmos.default b/src/mainboard/gigabyte/ga-b75m-d3v/cmos.default
index 21d75e5..767372c 100644
--- a/src/mainboard/gigabyte/ga-b75m-d3v/cmos.default
+++ b/src/mainboard/gigabyte/ga-b75m-d3v/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 power_on_after_fail=Enable
diff --git a/src/mainboard/gigabyte/ga-b75m-d3v/cmos.layout b/src/mainboard/gigabyte/ga-b75m-d3v/cmos.layout
index 3742cd2..32a3059 100644
--- a/src/mainboard/gigabyte/ga-b75m-d3v/cmos.layout
+++ b/src/mainboard/gigabyte/ga-b75m-d3v/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/gigabyte/ga_2761gxdk/cmos.layout b/src/mainboard/gigabyte/ga_2761gxdk/cmos.layout
index 23fd413..53f259a 100644
--- a/src/mainboard/gigabyte/ga_2761gxdk/cmos.layout
+++ b/src/mainboard/gigabyte/ga_2761gxdk/cmos.layout
@@ -19,7 +19,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/gigabyte/m57sli/cmos.layout b/src/mainboard/gigabyte/m57sli/cmos.layout
index 23fd413..53f259a 100644
--- a/src/mainboard/gigabyte/m57sli/cmos.layout
+++ b/src/mainboard/gigabyte/m57sli/cmos.layout
@@ -19,7 +19,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/gigabyte/ma785gm/cmos.layout b/src/mainboard/gigabyte/ma785gm/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/gigabyte/ma785gm/cmos.layout
+++ b/src/mainboard/gigabyte/ma785gm/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/gigabyte/ma785gmt/cmos.layout b/src/mainboard/gigabyte/ma785gmt/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/gigabyte/ma785gmt/cmos.layout
+++ b/src/mainboard/gigabyte/ma785gmt/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/gigabyte/ma78gm/cmos.layout b/src/mainboard/gigabyte/ma78gm/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/gigabyte/ma78gm/cmos.layout
+++ b/src/mainboard/gigabyte/ma78gm/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/gizmosphere/gizmo/cmos.layout b/src/mainboard/gizmosphere/gizmo/cmos.layout
index dd40c56..ea39ed6 100644
--- a/src/mainboard/gizmosphere/gizmo/cmos.layout
+++ b/src/mainboard/gizmosphere/gizmo/cmos.layout
@@ -19,7 +19,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/gizmosphere/gizmo2/cmos.layout b/src/mainboard/gizmosphere/gizmo2/cmos.layout
index 66d1707..d83bb14 100644
--- a/src/mainboard/gizmosphere/gizmo2/cmos.layout
+++ b/src/mainboard/gizmosphere/gizmo2/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/google/auron/cmos.layout b/src/mainboard/google/auron/cmos.layout
index 1967717..2a518e9 100644
--- a/src/mainboard/google/auron/cmos.layout
+++ b/src/mainboard/google/auron/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/bolt/cmos.layout b/src/mainboard/google/bolt/cmos.layout
index 1967717..2a518e9 100644
--- a/src/mainboard/google/bolt/cmos.layout
+++ b/src/mainboard/google/bolt/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/butterfly/cmos.default b/src/mainboard/google/butterfly/cmos.default
index 77c7100..d6789eb 100644
--- a/src/mainboard/google/butterfly/cmos.default
+++ b/src/mainboard/google/butterfly/cmos.default
@@ -1,5 +1,4 @@
 boot_option = Fallback
-last_boot = Fallback
 debug_level = Spew
 nmi = Enable
 power_on_after_fail = Enable
diff --git a/src/mainboard/google/butterfly/cmos.layout b/src/mainboard/google/butterfly/cmos.layout
index f9fd3a4..8fe3d9b 100644
--- a/src/mainboard/google/butterfly/cmos.layout
+++ b/src/mainboard/google/butterfly/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/chell/cmos.layout b/src/mainboard/google/chell/cmos.layout
index dc68607..69046e5 100644
--- a/src/mainboard/google/chell/cmos.layout
+++ b/src/mainboard/google/chell/cmos.layout
@@ -65,7 +65,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/cyan/cmos.layout b/src/mainboard/google/cyan/cmos.layout
index 601ead9..4d463a0 100644
--- a/src/mainboard/google/cyan/cmos.layout
+++ b/src/mainboard/google/cyan/cmos.layout
@@ -65,7 +65,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/falco/cmos.layout b/src/mainboard/google/falco/cmos.layout
index 1967717..2a518e9 100644
--- a/src/mainboard/google/falco/cmos.layout
+++ b/src/mainboard/google/falco/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/glados/cmos.layout b/src/mainboard/google/glados/cmos.layout
index dc68607..69046e5 100644
--- a/src/mainboard/google/glados/cmos.layout
+++ b/src/mainboard/google/glados/cmos.layout
@@ -65,7 +65,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/jecht/cmos.layout b/src/mainboard/google/jecht/cmos.layout
index f862cd6..58a93c3 100644
--- a/src/mainboard/google/jecht/cmos.layout
+++ b/src/mainboard/google/jecht/cmos.layout
@@ -64,7 +64,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/lars/cmos.layout b/src/mainboard/google/lars/cmos.layout
index 59be84b..8467747 100644
--- a/src/mainboard/google/lars/cmos.layout
+++ b/src/mainboard/google/lars/cmos.layout
@@ -65,7 +65,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/link/cmos.layout b/src/mainboard/google/link/cmos.layout
index 76453af..0513a54 100644
--- a/src/mainboard/google/link/cmos.layout
+++ b/src/mainboard/google/link/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/panther/cmos.layout b/src/mainboard/google/panther/cmos.layout
index 1967717..2a518e9 100644
--- a/src/mainboard/google/panther/cmos.layout
+++ b/src/mainboard/google/panther/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/parrot/cmos.layout b/src/mainboard/google/parrot/cmos.layout
index 76453af..0513a54 100644
--- a/src/mainboard/google/parrot/cmos.layout
+++ b/src/mainboard/google/parrot/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/peppy/cmos.layout b/src/mainboard/google/peppy/cmos.layout
index 1967717..2a518e9 100644
--- a/src/mainboard/google/peppy/cmos.layout
+++ b/src/mainboard/google/peppy/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/rambi/cmos.layout b/src/mainboard/google/rambi/cmos.layout
index 1967717..2a518e9 100644
--- a/src/mainboard/google/rambi/cmos.layout
+++ b/src/mainboard/google/rambi/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/samus/cmos.layout b/src/mainboard/google/samus/cmos.layout
index 1967717..2a518e9 100644
--- a/src/mainboard/google/samus/cmos.layout
+++ b/src/mainboard/google/samus/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/slippy/cmos.layout b/src/mainboard/google/slippy/cmos.layout
index 1967717..2a518e9 100644
--- a/src/mainboard/google/slippy/cmos.layout
+++ b/src/mainboard/google/slippy/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/google/stout/cmos.default b/src/mainboard/google/stout/cmos.default
index 77c7100..d6789eb 100644
--- a/src/mainboard/google/stout/cmos.default
+++ b/src/mainboard/google/stout/cmos.default
@@ -1,5 +1,4 @@
 boot_option = Fallback
-last_boot = Fallback
 debug_level = Spew
 nmi = Enable
 power_on_after_fail = Enable
diff --git a/src/mainboard/google/stout/cmos.layout b/src/mainboard/google/stout/cmos.layout
index 76453af..0513a54 100644
--- a/src/mainboard/google/stout/cmos.layout
+++ b/src/mainboard/google/stout/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/hp/abm/cmos.layout b/src/mainboard/hp/abm/cmos.layout
index 66d1707..d83bb14 100644
--- a/src/mainboard/hp/abm/cmos.layout
+++ b/src/mainboard/hp/abm/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/hp/dl145_g1/cmos.layout b/src/mainboard/hp/dl145_g1/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/hp/dl145_g1/cmos.layout
+++ b/src/mainboard/hp/dl145_g1/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/hp/dl145_g3/cmos.layout b/src/mainboard/hp/dl145_g3/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/hp/dl145_g3/cmos.layout
+++ b/src/mainboard/hp/dl145_g3/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/hp/dl165_g6_fam10/cmos.layout b/src/mainboard/hp/dl165_g6_fam10/cmos.layout
index 9f0bd0e..73d53af 100644
--- a/src/mainboard/hp/dl165_g6_fam10/cmos.layout
+++ b/src/mainboard/hp/dl165_g6_fam10/cmos.layout
@@ -20,7 +20,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 393          3       e       5        baud_rate
 396          5       e       10       ecc_scrub_rate
diff --git a/src/mainboard/hp/pavilion_m6_1035dx/cmos.default b/src/mainboard/hp/pavilion_m6_1035dx/cmos.default
index 0bca0fc..5031376 100644
--- a/src/mainboard/hp/pavilion_m6_1035dx/cmos.default
+++ b/src/mainboard/hp/pavilion_m6_1035dx/cmos.default
@@ -1,5 +1,4 @@
 boot_option = Fallback
-last_boot = Fallback
 debug_level = Spew
 nmi = Disable
 power_on_after_fail = Disable
diff --git a/src/mainboard/hp/pavilion_m6_1035dx/cmos.layout b/src/mainboard/hp/pavilion_m6_1035dx/cmos.layout
index eb0e6b6..5b1f9cb 100644
--- a/src/mainboard/hp/pavilion_m6_1035dx/cmos.layout
+++ b/src/mainboard/hp/pavilion_m6_1035dx/cmos.layout
@@ -5,7 +5,6 @@ entries
 # RTC_BOOT_BYTE (coreboot hardcoded)
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 
 # southbridge/amd/agesa/hudson should use this but it doesn't
diff --git a/src/mainboard/ibase/mb899/cmos.layout b/src/mainboard/ibase/mb899/cmos.layout
index 7e9d36c..1ef4361 100644
--- a/src/mainboard/ibase/mb899/cmos.layout
+++ b/src/mainboard/ibase/mb899/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/ibm/e325/cmos.layout b/src/mainboard/ibm/e325/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/ibm/e325/cmos.layout
+++ b/src/mainboard/ibm/e325/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/ibm/e326/cmos.layout b/src/mainboard/ibm/e326/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/ibm/e326/cmos.layout
+++ b/src/mainboard/ibm/e326/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/iei/kino-780am2-fam10/cmos.layout b/src/mainboard/iei/kino-780am2-fam10/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/iei/kino-780am2-fam10/cmos.layout
+++ b/src/mainboard/iei/kino-780am2-fam10/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/intel/baskingridge/cmos.layout b/src/mainboard/intel/baskingridge/cmos.layout
index 64c5ec5..2f429c9 100644
--- a/src/mainboard/intel/baskingridge/cmos.layout
+++ b/src/mainboard/intel/baskingridge/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/intel/bayleybay_fsp/cmos.layout b/src/mainboard/intel/bayleybay_fsp/cmos.layout
index 2df7fec..bd5010c 100644
--- a/src/mainboard/intel/bayleybay_fsp/cmos.layout
+++ b/src/mainboard/intel/bayleybay_fsp/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/intel/cougar_canyon2/cmos.layout b/src/mainboard/intel/cougar_canyon2/cmos.layout
index 667d164..44ce096 100644
--- a/src/mainboard/intel/cougar_canyon2/cmos.layout
+++ b/src/mainboard/intel/cougar_canyon2/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/intel/d945gclf/cmos.layout b/src/mainboard/intel/d945gclf/cmos.layout
index 956d9fe..31f2b20 100644
--- a/src/mainboard/intel/d945gclf/cmos.layout
+++ b/src/mainboard/intel/d945gclf/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/intel/eagleheights/cmos.layout b/src/mainboard/intel/eagleheights/cmos.layout
index 10e74e2..468e723 100644
--- a/src/mainboard/intel/eagleheights/cmos.layout
+++ b/src/mainboard/intel/eagleheights/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/intel/emeraldlake2/cmos.layout b/src/mainboard/intel/emeraldlake2/cmos.layout
index e7f44ca..ab8cdb8 100644
--- a/src/mainboard/intel/emeraldlake2/cmos.layout
+++ b/src/mainboard/intel/emeraldlake2/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/intel/kunimitsu/cmos.layout b/src/mainboard/intel/kunimitsu/cmos.layout
index 59be84b..8467747 100644
--- a/src/mainboard/intel/kunimitsu/cmos.layout
+++ b/src/mainboard/intel/kunimitsu/cmos.layout
@@ -65,7 +65,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/intel/minnowmax/cmos.layout b/src/mainboard/intel/minnowmax/cmos.layout
index 2d25bca..8aaa522 100644
--- a/src/mainboard/intel/minnowmax/cmos.layout
+++ b/src/mainboard/intel/minnowmax/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/intel/mohonpeak/cmos.layout b/src/mainboard/intel/mohonpeak/cmos.layout
index 8b7431e..28976c1 100644
--- a/src/mainboard/intel/mohonpeak/cmos.layout
+++ b/src/mainboard/intel/mohonpeak/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/intel/sklrvp/cmos.layout b/src/mainboard/intel/sklrvp/cmos.layout
index 59be84b..8467747 100644
--- a/src/mainboard/intel/sklrvp/cmos.layout
+++ b/src/mainboard/intel/sklrvp/cmos.layout
@@ -65,7 +65,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/intel/strago/cmos.layout b/src/mainboard/intel/strago/cmos.layout
index 601ead9..4d463a0 100644
--- a/src/mainboard/intel/strago/cmos.layout
+++ b/src/mainboard/intel/strago/cmos.layout
@@ -65,7 +65,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/intel/wtm2/cmos.layout b/src/mainboard/intel/wtm2/cmos.layout
index 1967717..2a518e9 100644
--- a/src/mainboard/intel/wtm2/cmos.layout
+++ b/src/mainboard/intel/wtm2/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/iwave/iWRainbowG6/cmos.layout b/src/mainboard/iwave/iWRainbowG6/cmos.layout
index d91a183..0b1845e 100644
--- a/src/mainboard/iwave/iWRainbowG6/cmos.layout
+++ b/src/mainboard/iwave/iWRainbowG6/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/iwill/dk8_htx/cmos.layout b/src/mainboard/iwill/dk8_htx/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/iwill/dk8_htx/cmos.layout
+++ b/src/mainboard/iwill/dk8_htx/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/iwill/dk8s2/cmos.layout b/src/mainboard/iwill/dk8s2/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/iwill/dk8s2/cmos.layout
+++ b/src/mainboard/iwill/dk8s2/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/iwill/dk8x/cmos.layout b/src/mainboard/iwill/dk8x/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/iwill/dk8x/cmos.layout
+++ b/src/mainboard/iwill/dk8x/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/jetway/j7f2/cmos.layout b/src/mainboard/jetway/j7f2/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/jetway/j7f2/cmos.layout
+++ b/src/mainboard/jetway/j7f2/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/jetway/nf81-t56n-lf/cmos.layout b/src/mainboard/jetway/nf81-t56n-lf/cmos.layout
index f53ce6d..f47185f 100644
--- a/src/mainboard/jetway/nf81-t56n-lf/cmos.layout
+++ b/src/mainboard/jetway/nf81-t56n-lf/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/jetway/pa78vm5/cmos.layout b/src/mainboard/jetway/pa78vm5/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/jetway/pa78vm5/cmos.layout
+++ b/src/mainboard/jetway/pa78vm5/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/kontron/986lcd-m/cmos.layout b/src/mainboard/kontron/986lcd-m/cmos.layout
index cd6e7ec..f9fb424 100644
--- a/src/mainboard/kontron/986lcd-m/cmos.layout
+++ b/src/mainboard/kontron/986lcd-m/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/kontron/kt690/cmos.layout b/src/mainboard/kontron/kt690/cmos.layout
index 25bad99..4e9d62c 100644
--- a/src/mainboard/kontron/kt690/cmos.layout
+++ b/src/mainboard/kontron/kt690/cmos.layout
@@ -19,7 +19,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/kontron/ktqm77/cmos.layout b/src/mainboard/kontron/ktqm77/cmos.layout
index 5915c8f..9517618 100644
--- a/src/mainboard/kontron/ktqm77/cmos.layout
+++ b/src/mainboard/kontron/ktqm77/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/lanner/em8510/cmos.layout b/src/mainboard/lanner/em8510/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/lanner/em8510/cmos.layout
+++ b/src/mainboard/lanner/em8510/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/lenovo/g505s/cmos.layout b/src/mainboard/lenovo/g505s/cmos.layout
index 66d1707..d83bb14 100644
--- a/src/mainboard/lenovo/g505s/cmos.layout
+++ b/src/mainboard/lenovo/g505s/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/lenovo/t400/cmos.default b/src/mainboard/lenovo/t400/cmos.default
index 67b8920..ac9f96d 100644
--- a/src/mainboard/lenovo/t400/cmos.default
+++ b/src/mainboard/lenovo/t400/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 power_on_after_fail=Disable
diff --git a/src/mainboard/lenovo/t400/cmos.layout b/src/mainboard/lenovo/t400/cmos.layout
index 407b561..686fc25 100644
--- a/src/mainboard/lenovo/t400/cmos.layout
+++ b/src/mainboard/lenovo/t400/cmos.layout
@@ -44,7 +44,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384           1       e       4        boot_option
-385           1       e       4        last_boot
 388           4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/lenovo/t420s/cmos.default b/src/mainboard/lenovo/t420s/cmos.default
index cf01726..6f3f75d 100644
--- a/src/mainboard/lenovo/t420s/cmos.default
+++ b/src/mainboard/lenovo/t420s/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 power_on_after_fail=Enable
diff --git a/src/mainboard/lenovo/t420s/cmos.layout b/src/mainboard/lenovo/t420s/cmos.layout
index 189ab11..cb76e70 100644
--- a/src/mainboard/lenovo/t420s/cmos.layout
+++ b/src/mainboard/lenovo/t420s/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/lenovo/t430s/cmos.default b/src/mainboard/lenovo/t430s/cmos.default
index 137f482..99a0f1a 100644
--- a/src/mainboard/lenovo/t430s/cmos.default
+++ b/src/mainboard/lenovo/t430s/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 power_on_after_fail=Enable
diff --git a/src/mainboard/lenovo/t430s/cmos.layout b/src/mainboard/lenovo/t430s/cmos.layout
index 1586a7d..0d3d089 100644
--- a/src/mainboard/lenovo/t430s/cmos.layout
+++ b/src/mainboard/lenovo/t430s/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/lenovo/t520/cmos.default b/src/mainboard/lenovo/t520/cmos.default
index 137f482..99a0f1a 100644
--- a/src/mainboard/lenovo/t520/cmos.default
+++ b/src/mainboard/lenovo/t520/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 power_on_after_fail=Enable
diff --git a/src/mainboard/lenovo/t520/cmos.layout b/src/mainboard/lenovo/t520/cmos.layout
index 2dd5e78..bd9fd2a 100644
--- a/src/mainboard/lenovo/t520/cmos.layout
+++ b/src/mainboard/lenovo/t520/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/lenovo/t530/cmos.default b/src/mainboard/lenovo/t530/cmos.default
index 137f482..99a0f1a 100644
--- a/src/mainboard/lenovo/t530/cmos.default
+++ b/src/mainboard/lenovo/t530/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 power_on_after_fail=Enable
diff --git a/src/mainboard/lenovo/t530/cmos.layout b/src/mainboard/lenovo/t530/cmos.layout
index 2dd5e78..bd9fd2a 100644
--- a/src/mainboard/lenovo/t530/cmos.layout
+++ b/src/mainboard/lenovo/t530/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/lenovo/t60/cmos.default b/src/mainboard/lenovo/t60/cmos.default
index 6adf85d..5dd0c70 100644
--- a/src/mainboard/lenovo/t60/cmos.default
+++ b/src/mainboard/lenovo/t60/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 hyper_threading=Enable
diff --git a/src/mainboard/lenovo/t60/cmos.layout b/src/mainboard/lenovo/t60/cmos.layout
index 76a4e37..29ea2ef 100644
--- a/src/mainboard/lenovo/t60/cmos.layout
+++ b/src/mainboard/lenovo/t60/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/lenovo/x200/cmos.default b/src/mainboard/lenovo/x200/cmos.default
index 67b8920..ac9f96d 100644
--- a/src/mainboard/lenovo/x200/cmos.default
+++ b/src/mainboard/lenovo/x200/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 power_on_after_fail=Disable
diff --git a/src/mainboard/lenovo/x200/cmos.layout b/src/mainboard/lenovo/x200/cmos.layout
index 3eb0850..5f50bd4 100644
--- a/src/mainboard/lenovo/x200/cmos.layout
+++ b/src/mainboard/lenovo/x200/cmos.layout
@@ -44,7 +44,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384           1       e       4        boot_option
-385           1       e       4        last_boot
 388           4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/lenovo/x201/cmos.default b/src/mainboard/lenovo/x201/cmos.default
index 29eb509..710edfc 100644
--- a/src/mainboard/lenovo/x201/cmos.default
+++ b/src/mainboard/lenovo/x201/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 power_on_after_fail=Enable
diff --git a/src/mainboard/lenovo/x201/cmos.layout b/src/mainboard/lenovo/x201/cmos.layout
index 3c541b4..d231a11 100644
--- a/src/mainboard/lenovo/x201/cmos.layout
+++ b/src/mainboard/lenovo/x201/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390         2       r       0        unused?
 
diff --git a/src/mainboard/lenovo/x220/cmos.default b/src/mainboard/lenovo/x220/cmos.default
index ef3e920..8038d64 100644
--- a/src/mainboard/lenovo/x220/cmos.default
+++ b/src/mainboard/lenovo/x220/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 power_on_after_fail=Enable
diff --git a/src/mainboard/lenovo/x220/cmos.layout b/src/mainboard/lenovo/x220/cmos.layout
index 9b224b6..8f147cc 100644
--- a/src/mainboard/lenovo/x220/cmos.layout
+++ b/src/mainboard/lenovo/x220/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/lenovo/x230/cmos.default b/src/mainboard/lenovo/x230/cmos.default
index 137f482..99a0f1a 100644
--- a/src/mainboard/lenovo/x230/cmos.default
+++ b/src/mainboard/lenovo/x230/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 power_on_after_fail=Enable
diff --git a/src/mainboard/lenovo/x230/cmos.layout b/src/mainboard/lenovo/x230/cmos.layout
index 79b955b..e8cd140 100644
--- a/src/mainboard/lenovo/x230/cmos.layout
+++ b/src/mainboard/lenovo/x230/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/lenovo/x60/cmos.default b/src/mainboard/lenovo/x60/cmos.default
index 0185e94..3579757 100644
--- a/src/mainboard/lenovo/x60/cmos.default
+++ b/src/mainboard/lenovo/x60/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 hyper_threading=Enable
diff --git a/src/mainboard/lenovo/x60/cmos.layout b/src/mainboard/lenovo/x60/cmos.layout
index ad1d626..e267bb5 100644
--- a/src/mainboard/lenovo/x60/cmos.layout
+++ b/src/mainboard/lenovo/x60/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       h       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/lippert/frontrunner-af/cmos.layout b/src/mainboard/lippert/frontrunner-af/cmos.layout
index f53ce6d..f47185f 100644
--- a/src/mainboard/lippert/frontrunner-af/cmos.layout
+++ b/src/mainboard/lippert/frontrunner-af/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/lippert/frontrunner/cmos.layout b/src/mainboard/lippert/frontrunner/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/lippert/frontrunner/cmos.layout
+++ b/src/mainboard/lippert/frontrunner/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/lippert/toucan-af/cmos.layout b/src/mainboard/lippert/toucan-af/cmos.layout
index f53ce6d..f47185f 100644
--- a/src/mainboard/lippert/toucan-af/cmos.layout
+++ b/src/mainboard/lippert/toucan-af/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/msi/ms7135/cmos.layout b/src/mainboard/msi/ms7135/cmos.layout
index c2d0a33..34afb42 100644
--- a/src/mainboard/msi/ms7135/cmos.layout
+++ b/src/mainboard/msi/ms7135/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/msi/ms7260/cmos.layout b/src/mainboard/msi/ms7260/cmos.layout
index 70f2847..be9dce6 100644
--- a/src/mainboard/msi/ms7260/cmos.layout
+++ b/src/mainboard/msi/ms7260/cmos.layout
@@ -20,7 +20,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/msi/ms9185/cmos.layout b/src/mainboard/msi/ms9185/cmos.layout
index 30f40c3..7e80285 100644
--- a/src/mainboard/msi/ms9185/cmos.layout
+++ b/src/mainboard/msi/ms9185/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/msi/ms9282/cmos.layout b/src/mainboard/msi/ms9282/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/msi/ms9282/cmos.layout
+++ b/src/mainboard/msi/ms9282/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/msi/ms9652_fam10/cmos.layout b/src/mainboard/msi/ms9652_fam10/cmos.layout
index 8eb0631..14e45ef 100644
--- a/src/mainboard/msi/ms9652_fam10/cmos.layout
+++ b/src/mainboard/msi/ms9652_fam10/cmos.layout
@@ -20,7 +20,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 393          3       e       5        baud_rate
 396          5       e       10       ecc_scrub_rate
diff --git a/src/mainboard/newisys/khepri/cmos.layout b/src/mainboard/newisys/khepri/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/newisys/khepri/cmos.layout
+++ b/src/mainboard/newisys/khepri/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/nvidia/l1_2pvv/cmos.layout b/src/mainboard/nvidia/l1_2pvv/cmos.layout
index 23fd413..53f259a 100644
--- a/src/mainboard/nvidia/l1_2pvv/cmos.layout
+++ b/src/mainboard/nvidia/l1_2pvv/cmos.layout
@@ -19,7 +19,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/packardbell/ms2290/cmos.default b/src/mainboard/packardbell/ms2290/cmos.default
index 5820bfa..aef840c 100644
--- a/src/mainboard/packardbell/ms2290/cmos.default
+++ b/src/mainboard/packardbell/ms2290/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 baud_rate=115200
 debug_level=Spew
 power_on_after_fail=Enable
diff --git a/src/mainboard/packardbell/ms2290/cmos.layout b/src/mainboard/packardbell/ms2290/cmos.layout
index 6bfa5e5..4cfb902 100644
--- a/src/mainboard/packardbell/ms2290/cmos.layout
+++ b/src/mainboard/packardbell/ms2290/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390         2       r       0        unused?
 
diff --git a/src/mainboard/pcengines/alix1c/cmos.default b/src/mainboard/pcengines/alix1c/cmos.default
index 0e59b09..19b5ab7 100644
--- a/src/mainboard/pcengines/alix1c/cmos.default
+++ b/src/mainboard/pcengines/alix1c/cmos.default
@@ -1,5 +1,4 @@
 boot_option=Fallback
-last_boot=Fallback
 ECC_memory=Disable
 baud_rate=115200
 power_on_after_fail=Disable
diff --git a/src/mainboard/pcengines/alix1c/cmos.layout b/src/mainboard/pcengines/alix1c/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/pcengines/alix1c/cmos.layout
+++ b/src/mainboard/pcengines/alix1c/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/pcengines/alix2d/cmos.layout b/src/mainboard/pcengines/alix2d/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/pcengines/alix2d/cmos.layout
+++ b/src/mainboard/pcengines/alix2d/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/pcengines/apu1/cmos.default b/src/mainboard/pcengines/apu1/cmos.default
index 35e0365..31d5a31 100644
--- a/src/mainboard/pcengines/apu1/cmos.default
+++ b/src/mainboard/pcengines/apu1/cmos.default
@@ -1,4 +1,3 @@
-last_boot=Fallback
 boot_option=Fallback
 multi_core=Enable
 debug_level=Spew
diff --git a/src/mainboard/pcengines/apu1/cmos.layout b/src/mainboard/pcengines/apu1/cmos.layout
index 0cf145f..e0501f6 100644
--- a/src/mainboard/pcengines/apu1/cmos.layout
+++ b/src/mainboard/pcengines/apu1/cmos.layout
@@ -3,7 +3,6 @@ entries
 # <start-bit> <bit-length> <config> <config-id> <parameter-name>
 0             384          r        0           reserved_memory
 384           4            r        0           reboot_bits
-388           1            e        2           last_boot
 # leave 3 bits to make checksummed area start byte-aligned
 392           1            e        2           boot_option
 393           1            e        1           multi_core
@@ -18,7 +17,7 @@ enumerations
 ## for multi_core
 1             0        Enable
 1             1        Disable
-## for last_boot, boot_option
+## for boot_option
 2             0        Fallback
 2             1        Normal
 ## for baud_rate
diff --git a/src/mainboard/roda/rk886ex/cmos.layout b/src/mainboard/roda/rk886ex/cmos.layout
index 80df7b6..023bdfa 100644
--- a/src/mainboard/roda/rk886ex/cmos.layout
+++ b/src/mainboard/roda/rk886ex/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/roda/rk9/cmos.layout b/src/mainboard/roda/rk9/cmos.layout
index 1cb6419..f567b97 100644
--- a/src/mainboard/roda/rk9/cmos.layout
+++ b/src/mainboard/roda/rk9/cmos.layout
@@ -44,7 +44,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384           1       e       4        boot_option
-385           1       e       4        last_boot
 388           4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/samsung/lumpy/cmos.layout b/src/mainboard/samsung/lumpy/cmos.layout
index 4fd3076..b88ceb8 100644
--- a/src/mainboard/samsung/lumpy/cmos.layout
+++ b/src/mainboard/samsung/lumpy/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/samsung/stumpy/cmos.layout b/src/mainboard/samsung/stumpy/cmos.layout
index 28c596d..a5ed030 100644
--- a/src/mainboard/samsung/stumpy/cmos.layout
+++ b/src/mainboard/samsung/stumpy/cmos.layout
@@ -42,7 +42,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/siemens/mc_tcu3/cmos.layout b/src/mainboard/siemens/mc_tcu3/cmos.layout
index 9ff9d1f..6297de0 100644
--- a/src/mainboard/siemens/mc_tcu3/cmos.layout
+++ b/src/mainboard/siemens/mc_tcu3/cmos.layout
@@ -64,7 +64,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/siemens/sitemp_g1p1/cmos.default b/src/mainboard/siemens/sitemp_g1p1/cmos.default
index 5e47a19..9f15a1c 100644
--- a/src/mainboard/siemens/sitemp_g1p1/cmos.default
+++ b/src/mainboard/siemens/sitemp_g1p1/cmos.default
@@ -1,4 +1,3 @@
-last_boot=Fallback
 boot_option=Fallback
 baud_rate=115200
 debug_level=Spew
diff --git a/src/mainboard/siemens/sitemp_g1p1/cmos.layout b/src/mainboard/siemens/sitemp_g1p1/cmos.layout
index 1156bfc..18c0a6f 100644
--- a/src/mainboard/siemens/sitemp_g1p1/cmos.layout
+++ b/src/mainboard/siemens/sitemp_g1p1/cmos.layout
@@ -28,7 +28,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 #386          2       r       1        unused
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
diff --git a/src/mainboard/sunw/ultra40/cmos.layout b/src/mainboard/sunw/ultra40/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/sunw/ultra40/cmos.layout
+++ b/src/mainboard/sunw/ultra40/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/supermicro/h8dme/cmos.layout b/src/mainboard/supermicro/h8dme/cmos.layout
index 23fd413..53f259a 100644
--- a/src/mainboard/supermicro/h8dme/cmos.layout
+++ b/src/mainboard/supermicro/h8dme/cmos.layout
@@ -19,7 +19,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/supermicro/h8dmr/cmos.layout b/src/mainboard/supermicro/h8dmr/cmos.layout
index 23fd413..53f259a 100644
--- a/src/mainboard/supermicro/h8dmr/cmos.layout
+++ b/src/mainboard/supermicro/h8dmr/cmos.layout
@@ -19,7 +19,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/supermicro/h8dmr_fam10/cmos.layout b/src/mainboard/supermicro/h8dmr_fam10/cmos.layout
index 8eb0631..14e45ef 100644
--- a/src/mainboard/supermicro/h8dmr_fam10/cmos.layout
+++ b/src/mainboard/supermicro/h8dmr_fam10/cmos.layout
@@ -20,7 +20,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 393          3       e       5        baud_rate
 396          5       e       10       ecc_scrub_rate
diff --git a/src/mainboard/supermicro/h8qgi/cmos.layout b/src/mainboard/supermicro/h8qgi/cmos.layout
index f53ce6d..f47185f 100644
--- a/src/mainboard/supermicro/h8qgi/cmos.layout
+++ b/src/mainboard/supermicro/h8qgi/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/supermicro/h8qme_fam10/cmos.layout b/src/mainboard/supermicro/h8qme_fam10/cmos.layout
index 8eb0631..14e45ef 100644
--- a/src/mainboard/supermicro/h8qme_fam10/cmos.layout
+++ b/src/mainboard/supermicro/h8qme_fam10/cmos.layout
@@ -20,7 +20,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 393          3       e       5        baud_rate
 396          5       e       10       ecc_scrub_rate
diff --git a/src/mainboard/supermicro/h8scm/cmos.layout b/src/mainboard/supermicro/h8scm/cmos.layout
index f53ce6d..f47185f 100644
--- a/src/mainboard/supermicro/h8scm/cmos.layout
+++ b/src/mainboard/supermicro/h8scm/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/supermicro/h8scm_fam10/cmos.layout b/src/mainboard/supermicro/h8scm_fam10/cmos.layout
index f516f49..0ad18a2 100644
--- a/src/mainboard/supermicro/h8scm_fam10/cmos.layout
+++ b/src/mainboard/supermicro/h8scm_fam10/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/supermicro/x7db8/cmos.layout b/src/mainboard/supermicro/x7db8/cmos.layout
index a6328d1..2bccce8 100644
--- a/src/mainboard/supermicro/x7db8/cmos.layout
+++ b/src/mainboard/supermicro/x7db8/cmos.layout
@@ -43,7 +43,6 @@ entries
 # -----------------------------------------------------------------
 # RTC_BOOT_BYTE (coreboot hardcoded)
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 #390          2       r       0        unused?
 
diff --git a/src/mainboard/technexion/tim5690/cmos.layout b/src/mainboard/technexion/tim5690/cmos.layout
index 25bad99..4e9d62c 100644
--- a/src/mainboard/technexion/tim5690/cmos.layout
+++ b/src/mainboard/technexion/tim5690/cmos.layout
@@ -19,7 +19,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/technexion/tim8690/cmos.layout b/src/mainboard/technexion/tim8690/cmos.layout
index 25bad99..4e9d62c 100644
--- a/src/mainboard/technexion/tim8690/cmos.layout
+++ b/src/mainboard/technexion/tim8690/cmos.layout
@@ -19,7 +19,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/traverse/geos/cmos.layout b/src/mainboard/traverse/geos/cmos.layout
index 0bcfaf8..6a030e6 100644
--- a/src/mainboard/traverse/geos/cmos.layout
+++ b/src/mainboard/traverse/geos/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/tyan/s2735/cmos.layout b/src/mainboard/tyan/s2735/cmos.layout
index 2c50002..fc3cdb2 100644
--- a/src/mainboard/tyan/s2735/cmos.layout
+++ b/src/mainboard/tyan/s2735/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       2        hyper_threading
diff --git a/src/mainboard/tyan/s2850/cmos.layout b/src/mainboard/tyan/s2850/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/tyan/s2850/cmos.layout
+++ b/src/mainboard/tyan/s2850/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/tyan/s2875/cmos.layout b/src/mainboard/tyan/s2875/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/tyan/s2875/cmos.layout
+++ b/src/mainboard/tyan/s2875/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/tyan/s2880/cmos.layout b/src/mainboard/tyan/s2880/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/tyan/s2880/cmos.layout
+++ b/src/mainboard/tyan/s2880/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/tyan/s2881/cmos.layout b/src/mainboard/tyan/s2881/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/tyan/s2881/cmos.layout
+++ b/src/mainboard/tyan/s2881/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/tyan/s2882/cmos.layout b/src/mainboard/tyan/s2882/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/tyan/s2882/cmos.layout
+++ b/src/mainboard/tyan/s2882/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/tyan/s2885/cmos.layout b/src/mainboard/tyan/s2885/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/tyan/s2885/cmos.layout
+++ b/src/mainboard/tyan/s2885/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/tyan/s2891/cmos.layout b/src/mainboard/tyan/s2891/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/tyan/s2891/cmos.layout
+++ b/src/mainboard/tyan/s2891/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/tyan/s2892/cmos.layout b/src/mainboard/tyan/s2892/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/tyan/s2892/cmos.layout
+++ b/src/mainboard/tyan/s2892/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/tyan/s2895/cmos.layout b/src/mainboard/tyan/s2895/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/tyan/s2895/cmos.layout
+++ b/src/mainboard/tyan/s2895/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/tyan/s2912/cmos.layout b/src/mainboard/tyan/s2912/cmos.layout
index 23fd413..53f259a 100644
--- a/src/mainboard/tyan/s2912/cmos.layout
+++ b/src/mainboard/tyan/s2912/cmos.layout
@@ -19,7 +19,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/tyan/s2912_fam10/cmos.layout b/src/mainboard/tyan/s2912_fam10/cmos.layout
index 8eb0631..14e45ef 100644
--- a/src/mainboard/tyan/s2912_fam10/cmos.layout
+++ b/src/mainboard/tyan/s2912_fam10/cmos.layout
@@ -20,7 +20,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 393          3       e       5        baud_rate
 396          5       e       10       ecc_scrub_rate
diff --git a/src/mainboard/tyan/s4880/cmos.layout b/src/mainboard/tyan/s4880/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/tyan/s4880/cmos.layout
+++ b/src/mainboard/tyan/s4880/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/tyan/s4882/cmos.layout b/src/mainboard/tyan/s4882/cmos.layout
index 85fa992..4e081ea 100644
--- a/src/mainboard/tyan/s4882/cmos.layout
+++ b/src/mainboard/tyan/s4882/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/tyan/s8226/cmos.layout b/src/mainboard/tyan/s8226/cmos.layout
index f53ce6d..f47185f 100644
--- a/src/mainboard/tyan/s8226/cmos.layout
+++ b/src/mainboard/tyan/s8226/cmos.layout
@@ -18,7 +18,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/via/epia-cn/cmos.layout b/src/mainboard/via/epia-cn/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/via/epia-cn/cmos.layout
+++ b/src/mainboard/via/epia-cn/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/via/epia-m700/cmos.layout b/src/mainboard/via/epia-m700/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/via/epia-m700/cmos.layout
+++ b/src/mainboard/via/epia-m700/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/via/pc2500e/cmos.layout b/src/mainboard/via/pc2500e/cmos.layout
index d6b214f..74f120d 100644
--- a/src/mainboard/via/pc2500e/cmos.layout
+++ b/src/mainboard/via/pc2500e/cmos.layout
@@ -19,7 +19,6 @@ entries
 #start-bit length  config config-ID   name
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/via/vt8454c/cmos.layout b/src/mainboard/via/vt8454c/cmos.layout
index 3856bb5..dea018f 100644
--- a/src/mainboard/via/vt8454c/cmos.layout
+++ b/src/mainboard/via/vt8454c/cmos.layout
@@ -17,7 +17,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 456          1       e       1        ECC_memory
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
diff --git a/src/mainboard/winent/mb6047/cmos.layout b/src/mainboard/winent/mb6047/cmos.layout
index affac0a..1e4f307 100644
--- a/src/mainboard/winent/mb6047/cmos.layout
+++ b/src/mainboard/winent/mb6047/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 395          1       e       1        hw_scrubber
diff --git a/src/mainboard/winent/pl6064/cmos.layout b/src/mainboard/winent/pl6064/cmos.layout
index b31e20c..6de5ab6 100644
--- a/src/mainboard/winent/pl6064/cmos.layout
+++ b/src/mainboard/winent/pl6064/cmos.layout
@@ -2,7 +2,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail
diff --git a/src/mainboard/wyse/s50/cmos.layout b/src/mainboard/wyse/s50/cmos.layout
index affb25d..fffba2b 100644
--- a/src/mainboard/wyse/s50/cmos.layout
+++ b/src/mainboard/wyse/s50/cmos.layout
@@ -20,7 +20,6 @@ entries
 
 0          384       r       0        reserved_memory
 384          1       e       4        boot_option
-385          1       e       4        last_boot
 388          4       r       0        reboot_bits
 392          3       e       5        baud_rate
 400          1       e       1        power_on_after_fail



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