diff options
| author | Naresh G Solanki <Naresh.Solanki@intel.com> | 2015-12-02 19:59:49 +0530 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2016-01-19 16:26:43 +0100 |
| commit | f1eac38bda354ede7d5b62d3af7c77ad2152bf53 (patch) | |
| tree | 3e2bdada2e5db8cf1f81d50af80eecf961c29850 /src | |
| parent | c6950576afb4b1e1a2e367b85d9826c16c7504b6 (diff) | |
| download | coreboot-f1eac38bda354ede7d5b62d3af7c77ad2152bf53.tar.xz | |
intel/skylake: Adding provision to set voltages to the I2C ports
This patch adds an UPD/VPD parameter to set voltages to the
I2C ports individually via devicetree.cb
BRANCH=None
BUG=chrome-os-partner:47821
TEST=Tesed by setting voltage via devicetree.cb
and verified voltage level using a DSO probe.
CQ-DEPEND=CL:*242225, CL:*241206
Change-Id: Iaeb1ab3f9724aa1139c876dc63250469661d8439
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: fc73b98529ad1eb187f97a4177beda4224f473d1
Original-Change-Id: Ib477ad26667ef59cd298b5e20a68a8c68d85bd8d
Original-Signed-off-by: Naresh G Solanki <Naresh.Solanki@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/315167
Original-Commit-Ready: Naresh Solanki <naresh.solanki@intel.com>
Original-Tested-by: Naresh Solanki <naresh.solanki@intel.com>
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/13006
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/skylake/chip.c | 20 | ||||
| -rw-r--r-- | src/soc/intel/skylake/chip.h | 4 |
2 files changed, 24 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/chip.c b/src/soc/intel/skylake/chip.c index 12942caddc..b5bcc65ebe 100644 --- a/src/soc/intel/skylake/chip.c +++ b/src/soc/intel/skylake/chip.c @@ -346,6 +346,8 @@ void soc_silicon_init_params(SILICON_INIT_UPD *params) params->SerialIrqConfigStartFramePulse = config->SerialIrqConfigStartFramePulse; params->SkipMpInit = config->FspSkipMpInit; + memcpy(params->SerialIoI2cVoltage, config->SerialIoI2cVoltage, + sizeof(params->SerialIoI2cVoltage)); /* * To disable Heci, the Psf needs to be left unlocked @@ -991,6 +993,24 @@ void soc_display_silicon_init_params(const SILICON_INIT_UPD *original, fsp_display_upd_value("VrConfigEnable[4]", 1, original->VrConfigEnable[4], params->VrConfigEnable[4]); + fsp_display_upd_value("SerialIoI2cVoltage[0]", 1, + original->SerialIoI2cVoltage[0], + params->SerialIoI2cVoltage[0]); + fsp_display_upd_value("SerialIoI2cVoltage[1]", 1, + original->SerialIoI2cVoltage[1], + params->SerialIoI2cVoltage[1]); + fsp_display_upd_value("SerialIoI2cVoltage[2]", 1, + original->SerialIoI2cVoltage[2], + params->SerialIoI2cVoltage[2]); + fsp_display_upd_value("SerialIoI2cVoltage[3]", 1, + original->SerialIoI2cVoltage[3], + params->SerialIoI2cVoltage[3]); + fsp_display_upd_value("SerialIoI2cVoltage[4]", 1, + original->SerialIoI2cVoltage[4], + params->SerialIoI2cVoltage[4]); + fsp_display_upd_value("SerialIoI2cVoltage[5]", 1, + original->SerialIoI2cVoltage[5], + params->SerialIoI2cVoltage[5]); } static void pci_set_subsystem(device_t dev, unsigned vendor, unsigned device) diff --git a/src/soc/intel/skylake/chip.h b/src/soc/intel/skylake/chip.h index f18c9d3113..a46222d371 100644 --- a/src/soc/intel/skylake/chip.h +++ b/src/soc/intel/skylake/chip.h @@ -177,6 +177,9 @@ struct soc_intel_skylake_config { */ u8 SerialIoDevMode[PchSerialIoIndexMax]; + /* I2C voltage select. Value: 0: 3.3V , 1: 1.8V.*/ + u8 SerialIoI2cVoltage[6]; + /* Camera */ u8 Cio2Enable; @@ -309,6 +312,7 @@ struct soc_intel_skylake_config { */ u8 SerialIrqConfigStartFramePulse; u8 FspSkipMpInit; + /* VrConfig Settings for 5 domains * 0 = System Agent, 1 = IA Core, 2 = Ring, * 3 = GT unsliced, 4 = GT sliced |