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authorSubrata Banik <subrata.banik@intel.com>2020-09-28 18:43:47 +0530
committerSubrata Banik <subrata.banik@intel.com>2020-10-03 06:58:07 +0000
commit0359d9dde37b7cce3009cfe630713042601ac5d8 (patch)
treed4d177be70a8db07b58159cbda768d12059f2222 /src/soc/intel/skylake
parent3e959d8e2a05a50ca16430dcacfd4794db1e49fc (diff)
soc/intel: Make use of PMC low power program from common block
List of changes: 1. Select PMC_LOW_POWER_MODE_PROGRAM from applicable SoC directory 2. Remove redundant PMC programming from SoC and refer to common code block 3. Remove unused 'reg8' and 'reg32' variable as applicable from SoC function. Change-Id: I18894c49cfc6e88675b5fb71bca0412e5639fb4b Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45796 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/skylake')
-rw-r--r--src/soc/intel/skylake/Kconfig1
-rw-r--r--src/soc/intel/skylake/finalize.c19
-rw-r--r--src/soc/intel/skylake/include/soc/pmc.h1
3 files changed, 7 insertions, 14 deletions
diff --git a/src/soc/intel/skylake/Kconfig b/src/soc/intel/skylake/Kconfig
index 6bdb615a72..c6e3a229de 100644
--- a/src/soc/intel/skylake/Kconfig
+++ b/src/soc/intel/skylake/Kconfig
@@ -42,6 +42,7 @@ config CPU_SPECIFIC_OPTIONS
select REG_SCRIPT
select SA_ENABLE_DPR
select PMC_GLOBAL_RESET_ENABLE_LOCK
+ select PMC_LOW_POWER_MODE_PROGRAM
select SOC_INTEL_COMMON
select SOC_INTEL_COMMON_ACPI_WAKE_SOURCE
select SOC_INTEL_COMMON_BLOCK
diff --git a/src/soc/intel/skylake/finalize.c b/src/soc/intel/skylake/finalize.c
index 0294a725b2..ff3218981a 100644
--- a/src/soc/intel/skylake/finalize.c
+++ b/src/soc/intel/skylake/finalize.c
@@ -13,6 +13,7 @@
#include <intelblocks/lpc_lib.h>
#include <intelblocks/p2sb.h>
#include <intelblocks/pcr.h>
+#include <intelblocks/pmclib.h>
#include <intelblocks/tco.h>
#include <intelblocks/thermal.h>
#include <spi-generic.h>
@@ -44,17 +45,13 @@ static void pch_disable_heci(void)
static void pch_finalize_script(struct device *dev)
{
- uint32_t reg32;
- uint8_t *pmcbase;
config_t *config;
- u8 reg8;
tco_lockdown();
/* Display me status before we hide it */
intel_me_status();
- pmcbase = pmc_mmio_regs();
config = config_of(dev);
/*
@@ -73,18 +70,12 @@ static void pch_finalize_script(struct device *dev)
* Disabling ACPI PM timer also switches off TCO
*/
- if (config->PmTimerDisabled) {
- reg8 = read8(pmcbase + PCH_PWRM_ACPI_TMR_CTL);
- reg8 |= (1 << 1);
- write8(pmcbase + PCH_PWRM_ACPI_TMR_CTL, reg8);
- }
+ if (config->PmTimerDisabled)
+ pmc_disable_acpi_timer();
/* Disable XTAL shutdown qualification for low power idle. */
- if (config->s0ix_enable) {
- reg32 = read32(pmcbase + CPPMVRIC);
- reg32 |= XTALSDQDIS;
- write32(pmcbase + CPPMVRIC, reg32);
- }
+ if (config->s0ix_enable)
+ pmc_ignore_xtal_shutdown();
/* we should disable Heci1 based on the devicetree policy */
if (config->HeciEnabled == 0)
diff --git a/src/soc/intel/skylake/include/soc/pmc.h b/src/soc/intel/skylake/include/soc/pmc.h
index 6d52b9dbc5..350649a211 100644
--- a/src/soc/intel/skylake/include/soc/pmc.h
+++ b/src/soc/intel/skylake/include/soc/pmc.h
@@ -78,6 +78,7 @@
#define PMSYNC_TPR_CFG 0xc4
#define PMSYNC_LOCK (1 << 31)
#define PCH_PWRM_ACPI_TMR_CTL 0xfc
+#define ACPI_TIM_DIS (1 << 1)
#define GPIO_GPE_CFG 0x120
#define GPE0_DWX_MASK 0xf
#define GPE0_DW_SHIFT(x) (4*(x))