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authorEvgeny Zinoviev <me@ch1p.com>2018-08-30 00:23:39 +0300
committerMartin Roth <martinroth@google.com>2018-09-02 03:10:39 +0000
commit0186912f9ecfc363071affeefa9b9e28966c0245 (patch)
treef6f241b741e168c80a13b40c3d47d3c7a02302de /src/mainboard/lenovo/t530
parentb7c0b8c8ee13bf4ae0736ddc1abc4f5a86d2a3ba (diff)
downloadcoreboot-0186912f9ecfc363071affeefa9b9e28966c0245.tar.xz
mb/lenovo: dGPU power handling on T430, T530
Enable dGPU power handling on Lenovo ThinkPad T430, T530 via PMH7 register 0x50. Although there's no Thinker-1 chip on these models according to schematics, dGPU power control via PMH7 works the same as on T420/T520, so they can be considered Thinker-1-compatible. It can be tested from linux userspace using util/pmh7tool. To turn dGPU power off: pmh7tool -c 0x50 7 pmh7tool -c 0x50 3 To turn it on: pmh7tool -s 0x50 3 pmh7tool -s 0x50 7 To check whether it is on (bash): reg=0x$(pmh7tool -r 0x50) echo "$(( (( reg & 0x08 )) >> 3 ))" or just `pmh7tool -b 0x50 3` with https://review.coreboot.org/#/c/coreboot/+/28388/ Tested on ThinkPad W530. Change-Id: Ieab1a33b3c680c757cc0999660b5cb7e122474cc Signed-off-by: Evgeny Zinoviev <me@ch1p.com> Reviewed-on: https://review.coreboot.org/28392 Reviewed-by: Patrick Rudolph <siro@das-labor.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/lenovo/t530')
-rw-r--r--src/mainboard/lenovo/t530/variants/t530/devicetree.cb2
-rw-r--r--src/mainboard/lenovo/t530/variants/w530/devicetree.cb2
2 files changed, 2 insertions, 2 deletions
diff --git a/src/mainboard/lenovo/t530/variants/t530/devicetree.cb b/src/mainboard/lenovo/t530/variants/t530/devicetree.cb
index 0da05e00f3..4dcdc9d9d5 100644
--- a/src/mainboard/lenovo/t530/variants/t530/devicetree.cb
+++ b/src/mainboard/lenovo/t530/variants/t530/devicetree.cb
@@ -157,7 +157,7 @@ chip northbridge/intel/sandybridge
register "has_backlight_gpio" = "0"
register "has_dgpu_power_gpio" = "0"
- register "has_thinker1" = "0"
+ register "has_thinker1" = "1"
end
end # LPC bridge
device pci 1f.2 on end # SATA Controller 1
diff --git a/src/mainboard/lenovo/t530/variants/w530/devicetree.cb b/src/mainboard/lenovo/t530/variants/w530/devicetree.cb
index d9d9df5e14..7a72b26213 100644
--- a/src/mainboard/lenovo/t530/variants/w530/devicetree.cb
+++ b/src/mainboard/lenovo/t530/variants/w530/devicetree.cb
@@ -179,7 +179,7 @@ chip northbridge/intel/sandybridge
register "has_backlight_gpio" = "0"
register "has_dgpu_power_gpio" = "0"
- register "has_thinker1" = "0"
+ register "has_thinker1" = "1"
end
end
device pci 1f.2 on # SATA Controller 1