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authorRex-BC Chen <rex-bc.chen@mediatek.corp-partner.google.com>2022-02-21 11:44:47 +0800
committerFelix Held <felix-coreboot@felixheld.de>2022-02-23 15:05:40 +0000
commit3a3920263ac316982696cbcdef639e0f77323f00 (patch)
tree374413e49821d51a1e0dadc072c54de2a5080ed6
parenteee62c153774e503ceeba08aedacd03411755250 (diff)
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soc/mediatek/mt8186: disable VSRAM_CORE
VSRAM_CORE is not used on kingler/krabby, so we disable it. This implementation is according to chapter 3.7 in MT8186 Functional Specification. BUG=b:220071688 TEST=the rail steadily shows 0V in either S0, S3, and S5. Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Change-Id: I5256f6a2c0ca5a951dc79f564575b526a84463fd Reviewed-on: https://review.coreboot.org/c/coreboot/+/62253 Reviewed-by: Yu-Ping Wu <yupingso@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
-rw-r--r--src/soc/mediatek/mt8186/mt6366.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8186/mt6366.c b/src/soc/mediatek/mt8186/mt6366.c
index 90ff3287d40e..b993a9256a0a 100644
--- a/src/soc/mediatek/mt8186/mt6366.c
+++ b/src/soc/mediatek/mt8186/mt6366.c
@@ -167,6 +167,10 @@ static struct pmic_setting init_setting[] = {
{0x1BCC, 0x70F, 0x7F7F, 0},
{0x1C9E, 0x38, 0x7F, 0},
{0x1CA0, 0x70F, 0x7F7F, 0},
+ /* VSRAM_CORE: set SW mode */
+ {0x1CA4, 0x1, 0xFFFF, 0},
+ /* VSRAM_CORE: SW set OFF */
+ {0x1C9C, 0x0, 0xFFFF, 0},
{0x1EA2, 0x1B, 0x1F, 0},
{0x1EA4, 0xC00, 0x1C00, 0},
{0x1EA6, 0xC00, 0x1C00, 0},