[coreboot-gerrit] Change in coreboot[master]: mb/google/volteer: Update flashmap descriptor to add ME_RW_A/B region

[Furquan Shaikh (Code Review)]

Furquan Shaikh has submitted this change. ( https://review.coreboot.org/c/coreboot/+/46431 )

Change subject: mb/google/volteer: Update flashmap descriptor to add ME_RW_A/B region
......................................................................

mb/google/volteer: Update flashmap descriptor to add ME_RW_A/B region

The current CSE firmware update implementation adds CSE RW binary to
FW_MAIN_A/B and this increases the boot time due to the size increase
of these regions leading to higher loading and hashing time.

To mitigate this issue, CSE RW binary is moved from FW_MAIN_A/B to new
region, ME_RW_A/B under RW_SECTON_A/B, and this updates the flashmap to
add ME_RW_A/B region for CSE RW binary.

BUG=b:169077783
TEST=build with cse rw binary, flash and verify volteer2 boots to OS.
Verify me_rw binary is added to ME_RW_A/B region.

Signed-off-by: Jamie Ryu 
Change-Id: I87da3824933ed2dd8e8ed0fed8686d2a3527faea
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46431
Reviewed-by: Furquan Shaikh 
Reviewed-by: Tim Wawrzynczak 
Tested-by: build bot (Jenkins) 
---
M src/mainboard/google/volteer/chromeos.fmd
1 file changed, 6 insertions(+), 4 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Furquan Shaikh: Looks good to me, approved
  Tim Wawrzynczak: Looks good to me, approved
  Jamie Ryu: Looks good to me, but someone else must approve

diff --git a/src/mainboard/google/volteer/chromeos.fmd b/src/mainboard/google/volteer/chromeos.fmd
index 07a5464..64776fe 100644
--- a/src/mainboard/google/volteer/chromeos.fmd
+++ b/src/mainboard/google/volteer/chromeos.fmd
@@ -10,13 +10,15 @@
    	RW_LEGACY(CBFS)@0x0 0xb00000
    	RW_SECTION_A@0xb00000 0x5e0000 {
    		VBLOCK_A@0x0 0x10000
-			FW_MAIN_A(CBFS)@0x10000 0x5cffc0
-			RW_FWID_A@0x5dffc0 0x40
+			FW_MAIN_A(CBFS)@0x10000 0x32ffc0
+			RW_FWID_A@0x33ffc0 0x40
+			ME_RW_A(CBFS)@0x340000 0x2a0000
    	}
    	RW_SECTION_B@0x10e0000 0x5e0000 {
    		VBLOCK_B@0x0 0x10000
-			FW_MAIN_B(CBFS)@0x10000 0x5cffc0
-			RW_FWID_B@0x5dffc0 0x40
+			FW_MAIN_B(CBFS)@0x10000 0x32ffc0
+			RW_FWID_B@0x33ffc0 0x40
+			ME_RW_B(CBFS)@0x340000 0x2a0000
    	}
    	RW_MISC@0x16c0000 0x40000 {
    		UNIFIED_MRC_CACHE(PRESERVE)@0x0 0x30000 {