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soc/intel/skylake: add option to enable VR specific mailbox cmd 

Adding an option to enable VR specific mailbox command.
When set, an extra VR mailbox command specifically for
the MPS IMPV8 VR will be sent.

BUG=chrome-os-partner:48511
BRANCH=None
TEST=Verified on glados, clean S0ix entry and exit.
        IMVP8 power is also pretty low

Change-Id: Ia5a23cbb1eca8b463eb7c7c279b74635f1d6b9f7
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: c90a799b51fe35bf184dca6ffce59c89a60f9917
Original-Change-Id: Iffd3fbcb9a15611eefc942529e6cdafba859fb2e
Original-Signed-off-by: Robbie Zhang <robbie.zhang@intel.com>
Original-Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/329393
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/13982
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Rizwan Qureshi 2016-02-24 14:31:40 +05:30 committed by Patrick Georgi
parent d2077af1af
commit af31a998c9
2 changed files with 13 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/soc/intel/skylake/chip.c
View File

@ -410,6 +410,7 @@ void soc_silicon_init_params(SILICON_INIT_UPD *params)
params->TcoIrqSelect = config->TcoIrqSelect;
/* TCO Irq enable/disable */
params->TcoIrqEnable = config->TcoIrqEnable;
params->SendVrMbxCmd = config->SendVrMbxCmd;
}
void soc_display_silicon_init_params(const SILICON_INIT_UPD *original,
@ -1011,6 +1012,9 @@ void soc_display_silicon_init_params(const SILICON_INIT_UPD *original,
fsp_display_upd_value("SerialIoI2cVoltage[5]", 1,
original->SerialIoI2cVoltage[5],
params->SerialIoI2cVoltage[5]);
fsp_display_upd_value("SendVrMbxCmd", 1,
original->SendVrMbxCmd,
params->SendVrMbxCmd);
}
static void pci_set_subsystem(device_t dev, unsigned vendor, unsigned device)

11
src/soc/intel/skylake/chip.h
View File

@ -312,8 +312,8 @@ struct soc_intel_skylake_config {
*/
u8 SerialIrqConfigStartFramePulse;
u8 FspSkipMpInit;
/* VrConfig Settings for 5 domains
/*
* VrConfig Settings for 5 domains
* 0 = System Agent, 1 = IA Core, 2 = Ring,
* 3 = GT unsliced, 4 = GT sliced
*/
@ -328,6 +328,13 @@ struct soc_intel_skylake_config {
u8 PmTimerDisabled;
/* Intel Speed Shift Technology */
u8 speed_shift_enable;
/*
* Enable VR specific mailbox command
* When set, an extra VR mailbox command specifically
* for the MPS IMPV8 VR will be sent.
* 0 - Don't Send, 1 - Send
*/
u8 SendVrMbxCmd;
};
typedef struct soc_intel_skylake_config config_t;