diff options
| author | Kane Chen <kane.chen@intel.com> | 2019-02-12 21:14:13 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-02-15 16:23:44 +0000 |
| commit | 223ddc298a1a8e25a493987d84c629ed152821d1 (patch) | |
| tree | 3dab78836d0483ad5e23709e142d258ba037002d /src/soc/intel/skylake | |
| parent | 1ac2ad0fbe8c1d7029e4f593fefe763212df6728 (diff) | |
soc/intel/skylake: Avoid TOL_1V8 being set for GPP_F4 ~ GPP_F11
According to doc 609208, bit 25 TOL_1V8 in GPP_F4 ~ GPP_F11 DW1
should be clear to prevent unexpected I2C behaviors.
BUG=b:124269499
TEST=boot on nami and check bit 25 TOL_1V8 is clear
Change-Id: I419ef3e89104ad3611e96bbe23a582504b45be0c
Signed-off-by: Kane Chen <kane.chen@intel.com>
Reviewed-on: https://review.coreboot.org/c/31368
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/soc/intel/skylake')
| -rw-r--r-- | src/soc/intel/skylake/gpio.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/gpio.c b/src/soc/intel/skylake/gpio.c index f67d4a3bb9..4da705da73 100644 --- a/src/soc/intel/skylake/gpio.c +++ b/src/soc/intel/skylake/gpio.c @@ -168,3 +168,18 @@ const struct pmc_to_gpio_route *soc_pmc_gpio_routes(size_t *num) *num = ARRAY_SIZE(routes); return routes; } + +uint32_t soc_gpio_pad_config_fixup(const struct pad_config *cfg, + int dw_reg, uint32_t reg_val) +{ + if (IS_ENABLED(CONFIG_SKYLAKE_SOC_PCH_H)) + return reg_val; + /* + * For U/Y series, clear PAD_CFG1_TOL_1V8 in GPP_F4 + * ~ GPP_F11. + */ + if (cfg->pad >= GPP_F4 && cfg->pad <= GPP_F11 && dw_reg == 1) + reg_val = reg_val & ~(PAD_CFG1_TOL_1V8); + return reg_val; + +} |