Martin Roth has submitted this change. ( https://review.coreboot.org/c/coreboot/+/67920 )
Change subject: mb/google/brya/var/mithrax: adjust I2C5 times for TP
......................................................................
mb/google/brya/var/mithrax: adjust I2C5 times for TP
This change updates scl_lcnt, scl_hcnt, sda_hold value for I2C5 to
follow I2C specification.
I2C_TCHPAD_SCL high period time is from 0.53 us to 0.6952 us.
I2C_TCHPAD_SDA hold time is from 0.13 us to 0.4623 us.
BUG=b:249031186
BRANCH=brya
TEST=EE check OK with test FW and TP function is normal.
Signed-off-by: John Su <john_su(a)compal.corp-partner.google.com>
Change-Id: I5977f0dbba8924cc8a1c72c36358d6ba6f2de940
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67920
Reviewed-by: Ricky Chang <rickytlchang(a)google.com>
Reviewed-by: Dtrain Hsu <dtrain_hsu(a)compal.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply(a)coreboot.org>
Reviewed-by: Frank Wu <frank_wu(a)compal.corp-partner.google.com>
---
M src/mainboard/google/brya/variants/mithrax/overridetree.cb
1 file changed, 31 insertions(+), 1 deletion(-)
Approvals:
build bot (Jenkins): Verified
Frank Wu: Looks good to me, approved
Dtrain Hsu: Looks good to me, approved
Ricky Chang: Looks good to me, but someone else must approve
diff --git a/src/mainboard/google/brya/variants/mithrax/overridetree.cb b/src/mainboard/google/brya/variants/mithrax/overridetree.cb
index 5899535..2755c70 100644
--- a/src/mainboard/google/brya/variants/mithrax/overridetree.cb
+++ b/src/mainboard/google/brya/variants/mithrax/overridetree.cb
@@ -81,7 +81,12 @@
.speed = I2C_SPEED_FAST,
.rise_time_ns = 550,
.fall_time_ns = 400,
- .data_hold_time_ns = 50,
+ .speed_config[0] = {
+ .speed = I2C_SPEED_FAST,
+ .scl_lcnt = 160,
+ .scl_hcnt = 70,
+ .sda_hold = 40,
+ }
},
}"
--
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Gerrit-Project: coreboot
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Gerrit-Change-Id: I5977f0dbba8924cc8a1c72c36358d6ba6f2de940
Gerrit-Change-Number: 67920
Gerrit-PatchSet: 6
Gerrit-Owner: John Su <john_su(a)compal.corp-partner.google.com>
Gerrit-Reviewer: Dtrain Hsu <dtrain_hsu(a)compal.corp-partner.google.com>
Gerrit-Reviewer: Felix Held <felix-coreboot(a)felixheld.de>
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Gerrit-Reviewer: Martin Roth <martin.roth(a)amd.corp-partner.google.com>
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Gerrit-MessageType: merged
Martin Roth has submitted this change. ( https://review.coreboot.org/c/coreboot/+/68099 )
Change subject: mb/lenovo/t440p: Enable PCI 00:01.1 bridge for dGPU
......................................................................
mb/lenovo/t440p: Enable PCI 00:01.1 bridge for dGPU
An optional dGPU can be connected to the second PEG bridge:
-[0000:00]-+-00.0 Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller
+-01.0-[01]--
+-01.1-[02]----00.0 NVIDIA Corporation GK208M [GeForce GT 730M]
It's possible that the 01.0 bridge is never populated, but we have to
leave it on anyway so 01.1 can be enumerated.
Change-Id: Ieab7a7bf3b31b4ee9d9f12b5d827d866c87356e1
Signed-off-by: Nico Huber <nico.h(a)gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68099
Tested-by: build bot (Jenkins) <no-reply(a)coreboot.org>
Reviewed-by: Angel Pons <th3fanbus(a)gmail.com>
---
M src/mainboard/lenovo/haswell/variants/t440p/devicetree.cb
1 file changed, 24 insertions(+), 2 deletions(-)
Approvals:
build bot (Jenkins): Verified
Angel Pons: Looks good to me, approved
diff --git a/src/mainboard/lenovo/haswell/variants/t440p/devicetree.cb b/src/mainboard/lenovo/haswell/variants/t440p/devicetree.cb
index b7588ea..c8772cc 100644
--- a/src/mainboard/lenovo/haswell/variants/t440p/devicetree.cb
+++ b/src/mainboard/lenovo/haswell/variants/t440p/devicetree.cb
@@ -23,8 +23,8 @@
subsystemid 0x17aa 0x220e inherit
device pci 00.0 on end # Host bridge
- device pci 01.0 on end # PCIe Bridge for discrete graphics
- device pci 01.1 off end # Unused PCIe Bridge
+ device pci 01.0 on end # PCIe Bridge for discrete graphics (optional)
+ device pci 01.1 on end # PCIe Bridge for discrete graphics (optional)
device pci 02.0 on end # Internal graphics VGA controller
device pci 03.0 on end # Mini-HD audio
--
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Gerrit-Change-Number: 68099
Gerrit-PatchSet: 2
Gerrit-Owner: Nico Huber <nico.h(a)gmx.de>
Gerrit-Reviewer: Alexander Couzens <lynxis(a)fe80.eu>
Gerrit-Reviewer: Angel Pons <th3fanbus(a)gmail.com>
Gerrit-Reviewer: Martin Roth <martin.roth(a)amd.corp-partner.google.com>
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Gerrit-MessageType: merged