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authorFurquan Shaikh <furquan@chromium.org>2017-10-14 19:24:43 -0700
committerFurquan Shaikh <furquan@google.com>2017-10-19 00:43:22 +0000
commit3efeeb2c8f64ce741c49745bf237528744c0b2f5 (patch)
tree76d32a59900c1ac23567942e8df2870dbccc0571
parent2ce4ec0dcba4f4e42af3c114658b3a226ebe1c19 (diff)
soc/intel/skylake: Move power_state functions to pmutil.c
This change moves soc_fill_power_state and soc_prev_sleep_state to pmutil.c. It allows the functions to be used across romstage and smm. BUG=b:67874513 Change-Id: I375ac029520c2cdd52926f3ab3c2d5559936dd8c Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/22085 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
-rw-r--r--src/soc/intel/skylake/pmutil.c68
-rw-r--r--src/soc/intel/skylake/romstage/Makefile.inc3
-rw-r--r--src/soc/intel/skylake/romstage/power_state.c103
3 files changed, 68 insertions, 106 deletions
diff --git a/src/soc/intel/skylake/pmutil.c b/src/soc/intel/skylake/pmutil.c
index 19370e1b4d..0da7fe8157 100644
--- a/src/soc/intel/skylake/pmutil.c
+++ b/src/soc/intel/skylake/pmutil.c
@@ -21,6 +21,7 @@
#define __SIMPLE_DEVICE__
+#include <arch/acpi.h>
#include <arch/io.h>
#include <device/device.h>
#include <device/pci.h>
@@ -247,3 +248,70 @@ int vbnv_cmos_failed(void)
{
return rtc_failure();
}
+
+/* Return 0, 3, or 5 to indicate the previous sleep state. */
+int soc_prev_sleep_state(const struct chipset_power_state *ps,
+ int prev_sleep_state)
+{
+ /*
+ * Check for any power failure to determine if this a wake from
+ * S5 because the PCH does not set the WAK_STS bit when waking
+ * from a true G3 state.
+ */
+ if (!(ps->pm1_sts & WAK_STS) &&
+ (ps->gen_pmcon_b & (PWR_FLR | SUS_PWR_FLR)))
+ prev_sleep_state = ACPI_S5;
+
+ /*
+ * If waking from S3 determine if deep S3 is enabled. If not,
+ * need to check both deep sleep well and normal suspend well.
+ * Otherwise just check deep sleep well.
+ */
+ if (prev_sleep_state == ACPI_S3) {
+ /* PWR_FLR represents deep sleep power well loss. */
+ uint32_t mask = PWR_FLR;
+
+ /* If deep s3 isn't enabled check the suspend well too. */
+ if (!deep_s3_enabled())
+ mask |= SUS_PWR_FLR;
+
+ if (ps->gen_pmcon_b & mask)
+ prev_sleep_state = ACPI_S5;
+ }
+ return prev_sleep_state;
+}
+
+void soc_fill_power_state(struct chipset_power_state *ps)
+{
+ uint16_t tcobase;
+ uint8_t *pmc;
+
+ tcobase = smbus_tco_regs();
+
+ ps->tco1_sts = inw(tcobase + TCO1_STS);
+ ps->tco2_sts = inw(tcobase + TCO2_STS);
+
+ printk(BIOS_DEBUG, "TCO_STS: %04x %04x\n",
+ ps->tco1_sts, ps->tco2_sts);
+
+ ps->gen_pmcon_a = pci_read_config32(PCH_DEV_PMC, GEN_PMCON_A);
+ ps->gen_pmcon_b = pci_read_config32(PCH_DEV_PMC, GEN_PMCON_B);
+
+ pmc = pmc_mmio_regs();
+ ps->gblrst_cause[0] = read32(pmc + GBLRST_CAUSE0);
+ ps->gblrst_cause[1] = read32(pmc + GBLRST_CAUSE1);
+
+ printk(BIOS_DEBUG, "GEN_PMCON: %08x %08x\n",
+ ps->gen_pmcon_a, ps->gen_pmcon_b);
+
+ printk(BIOS_DEBUG, "GBLRST_CAUSE: %08x %08x\n",
+ ps->gblrst_cause[0], ps->gblrst_cause[1]);
+}
+
+int acpi_get_sleep_type(void)
+{
+ struct chipset_power_state *ps;
+
+ ps = pmc_get_power_state();
+ return ps->prev_sleep_state;
+}
diff --git a/src/soc/intel/skylake/romstage/Makefile.inc b/src/soc/intel/skylake/romstage/Makefile.inc
index b3f3fabefe..6dbe718e0b 100644
--- a/src/soc/intel/skylake/romstage/Makefile.inc
+++ b/src/soc/intel/skylake/romstage/Makefile.inc
@@ -1,8 +1,5 @@
-verstage-y += power_state.c
-
romstage-$(CONFIG_PLATFORM_USES_FSP1_1) += car_stage.S
romstage-y += pmc.c
-romstage-y += power_state.c
romstage-$(CONFIG_PLATFORM_USES_FSP1_1) += romstage.c
romstage-$(CONFIG_PLATFORM_USES_FSP2_0) += romstage_fsp20.c
romstage-y += systemagent.c
diff --git a/src/soc/intel/skylake/romstage/power_state.c b/src/soc/intel/skylake/romstage/power_state.c
deleted file mode 100644
index 3eae936337..0000000000
--- a/src/soc/intel/skylake/romstage/power_state.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014 Google Inc.
- * Copyright (C) 2015 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <arch/acpi.h>
-#include <arch/io.h>
-#include <cbmem.h>
-#include <console/console.h>
-#include <device/device.h>
-#include <device/pci.h>
-#include <device/pci_def.h>
-#include <reg_script.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <soc/iomap.h>
-#include <soc/smbus.h>
-#include <soc/pci_devs.h>
-#include <soc/pm.h>
-#include <soc/pmc.h>
-#include <soc/romstage.h>
-#include <vboot/vboot_common.h>
-#include <intelblocks/pmclib.h>
-
-/* Return 0, 3, or 5 to indicate the previous sleep state. */
-int soc_prev_sleep_state(const struct chipset_power_state *ps,
- int prev_sleep_state)
-{
-
- /*
- * Check for any power failure to determine if this a wake from
- * S5 because the PCH does not set the WAK_STS bit when waking
- * from a true G3 state.
- */
- if (!(ps->pm1_sts & WAK_STS) &&
- (ps->gen_pmcon_b & (PWR_FLR | SUS_PWR_FLR)))
- prev_sleep_state = ACPI_S5;
-
- /*
- * If waking from S3 determine if deep S3 is enabled. If not,
- * need to check both deep sleep well and normal suspend well.
- * Otherwise just check deep sleep well.
- */
- if (prev_sleep_state == ACPI_S3) {
- /* PWR_FLR represents deep sleep power well loss. */
- uint32_t mask = PWR_FLR;
-
- /* If deep s3 isn't enabled check the suspend well too. */
- if (!deep_s3_enabled())
- mask |= SUS_PWR_FLR;
-
- if (ps->gen_pmcon_b & mask)
- prev_sleep_state = ACPI_S5;
- }
- return prev_sleep_state;
-}
-
-void soc_fill_power_state(struct chipset_power_state *ps)
-{
- uint16_t tcobase;
- uint8_t *pmc;
-
- tcobase = smbus_tco_regs();
-
- ps->tco1_sts = inw(tcobase + TCO1_STS);
- ps->tco2_sts = inw(tcobase + TCO2_STS);
-
- printk(BIOS_DEBUG, "TCO_STS: %04x %04x\n",
- ps->tco1_sts, ps->tco2_sts);
-
- ps->gen_pmcon_a = pci_read_config32(PCH_DEV_PMC, GEN_PMCON_A);
- ps->gen_pmcon_b = pci_read_config32(PCH_DEV_PMC, GEN_PMCON_B);
-
- pmc = pmc_mmio_regs();
- ps->gblrst_cause[0] = read32(pmc + GBLRST_CAUSE0);
- ps->gblrst_cause[1] = read32(pmc + GBLRST_CAUSE1);
-
- printk(BIOS_DEBUG, "GEN_PMCON: %08x %08x\n",
- ps->gen_pmcon_a, ps->gen_pmcon_b);
-
- printk(BIOS_DEBUG, "GBLRST_CAUSE: %08x %08x\n",
- ps->gblrst_cause[0], ps->gblrst_cause[1]);
-}
-
-int acpi_get_sleep_type(void)
-{
- struct chipset_power_state *ps;
-
- ps = pmc_get_power_state();
- return ps->prev_sleep_state;
-}