diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2015-07-24 15:37:13 -0700 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2015-08-13 16:33:23 +0200 |
| commit | edf1cb78e29edd768ef9641093bb3eae3c8c91d7 (patch) | |
| tree | 88b958c35863fe243504820d31f152af948a80ee /src/soc | |
| parent | 4f7cf3a4466df8f84ef352d2d496a2e7a075ac13 (diff) | |
| download | coreboot-edf1cb78e29edd768ef9641093bb3eae3c8c91d7.tar.xz | |
skylake: Add Deep Sx configuration for wake pins
Add support for enabling various pins in Deep Sx by setting
a register in the mainboard devicetree.
BUG=chrome-os-partner:43079
BRANCH=none
TEST=build and boot on glados
Original-Change-Id: I1b4fb51f72b88bdc49096268bdd781750dcd089d
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/288920
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Change-Id: I7555a92fecc6e78b579ec0bc18da202cb0c824e2
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/11170
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/skylake/chip.h | 9 | ||||
| -rw-r--r-- | src/soc/intel/skylake/include/soc/pmc.h | 5 | ||||
| -rw-r--r-- | src/soc/intel/skylake/pmc.c | 12 |
3 files changed, 26 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/chip.h b/src/soc/intel/skylake/chip.h index d397c4e488..c04e9f80d9 100644 --- a/src/soc/intel/skylake/chip.h +++ b/src/soc/intel/skylake/chip.h @@ -21,6 +21,7 @@ #include <stdint.h> #include <soc/pci_devs.h> +#include <soc/pmc.h> #include <soc/serialio.h> #ifndef _SOC_CHIP_H_ @@ -112,6 +113,14 @@ struct soc_intel_skylake_config { int deep_s3_enable; int deep_s5_enable; + /* + * Deep Sx Configuration + * DSX_EN_WAKE_PIN - Enable WAKE# pin + * DSX_EN_LAN_WAKE_PIN - Enable LAN_WAKE# pin + * DSX_EN_AC_PRESENT_PIN - Enable AC_PRESENT pin + */ + uint32_t deep_sx_config; + /* TCC activation offset */ int tcc_offset; diff --git a/src/soc/intel/skylake/include/soc/pmc.h b/src/soc/intel/skylake/include/soc/pmc.h index 699e795dca..5b5d663dac 100644 --- a/src/soc/intel/skylake/include/soc/pmc.h +++ b/src/soc/intel/skylake/include/soc/pmc.h @@ -55,6 +55,11 @@ #define S5_PWRGATE_POL 0x30 #define S5DC_GATE_SUS (1 << 15) #define S5AC_GATE_SUS (1 << 14) +#define DSX_CFG 0x34 +#define DSX_CFG_MASK 0x7 +#define DSX_EN_WAKE_PIN (1 << 2) +#define DSX_EN_AC_PRESENT_PIN (1 << 1) +#define DSX_EN_LAN_WAKE_PIN (1 << 0) #define PMSYNC_TPR_CFG 0xc4 #define PMSYNC_LOCK (1 << 31) #define GBLRST_CAUSE0 0x124 diff --git a/src/soc/intel/skylake/pmc.c b/src/soc/intel/skylake/pmc.c index 934c1300af..b95441cc14 100644 --- a/src/soc/intel/skylake/pmc.c +++ b/src/soc/intel/skylake/pmc.c @@ -217,6 +217,17 @@ static void config_deep_s3(int on) config_deep_sX(S3_PWRGATE_POL, S3DC_GATE_SUS | S3AC_GATE_SUS, 3, on); } +static void config_deep_sx(uint32_t deepsx_config) +{ + uint32_t reg; + uint8_t *pmcbase = pmc_mmio_regs(); + + reg = read32(pmcbase + DSX_CFG); + reg &= ~DSX_CFG_MASK; + reg |= deepsx_config; + write32(pmcbase + DSX_CFG, reg); +} + static void pmc_init(struct device *dev) { config_t *config = dev->chip_info; @@ -231,6 +242,7 @@ static void pmc_init(struct device *dev) config_deep_s3(config->deep_s3_enable); config_deep_s5(config->deep_s5_enable); + config_deep_sx(config->deep_sx_config); } static struct device_operations device_ops = { |