diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2013-10-30 15:25:42 -0500 |
|---|---|---|
| committer | Aaron Durbin <adurbin@google.com> | 2014-02-27 06:34:17 +0100 |
| commit | 6e77beec96b538f26c63f2623c72a7e5d24fb5e1 (patch) | |
| tree | 571883c624ac0a61ae03eabdbe2a2603ed1727c7 /src/soc/intel/baytrail | |
| parent | 61cd57ba36cc69aba2d6feb3be6398e4d4f46f68 (diff) | |
baytrail: add GNVS to cbmem and set acpi_slp_type
The ACPI code was previously complaining about not being able
to find the GNVS area: 'ACPI: Could not find CBMEM GNVS'. Fix
this by adding GNVS area early in start up. This is also the
appropriate place to set the acpi_slp_type variable to indicate
an S3 resume or not.
BUG=chrome-os-partner:22867
BUG=chrome-os-partner:23505
BRANCH=None
TEST=Built and booted through depthcharge. Noted cbmem has 'ACPI GNVS'
entry.
Change-Id: Ifbca3dd390ebe573730ee204ca4c2f19626dd6b1
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174647
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/4918
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/soc/intel/baytrail')
| -rw-r--r-- | src/soc/intel/baytrail/ramstage.c | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/src/soc/intel/baytrail/ramstage.c b/src/soc/intel/baytrail/ramstage.c index 896ecfe8d5..ab29190936 100644 --- a/src/soc/intel/baytrail/ramstage.c +++ b/src/soc/intel/baytrail/ramstage.c @@ -18,6 +18,8 @@ */ #include <arch/cpu.h> +#include <arch/acpi.h> +#include <cbmem.h> #include <console/console.h> #include <cpu/intel/microcode.h> #include <cpu/x86/cr.h> @@ -25,14 +27,16 @@ #include <device/device.h> #include <device/pci_def.h> #include <device/pci_ops.h> +#include <romstage_handoff.h> #include <stdlib.h> -#include <baytrail/pattrs.h> +#include <baytrail/gpio.h> #include <baytrail/lpc.h> #include <baytrail/msr.h> +#include <baytrail/nvs.h> +#include <baytrail/pattrs.h> #include <baytrail/pci_devs.h> #include <baytrail/ramstage.h> -#include <baytrail/gpio.h> /* Global PATTRS */ DEFINE_PATTRS; @@ -103,6 +107,31 @@ static void fill_in_pattrs(void) fill_in_msr(&attrs->iacore_vids, MSR_IACORE_VIDS); } +static inline void set_acpi_sleep_type(int val) +{ +#if CONFIG_HAVE_ACPI_RESUME + acpi_slp_type = val; +#endif +} + +static void s3_resume_prepare(void) +{ + global_nvs_t *gnvs; + struct romstage_handoff *romstage_handoff; + + gnvs = cbmem_add(CBMEM_ID_ACPI_GNVS, sizeof(global_nvs_t)); + + romstage_handoff = cbmem_find(CBMEM_ID_ROMSTAGE_INFO); + if (romstage_handoff == NULL || romstage_handoff->s3_resume == 0) { + if (gnvs != NULL) { + memset(gnvs, 0, sizeof(global_nvs_t)); + } + set_acpi_sleep_type(0); + return; + } + + set_acpi_sleep_type(3); +} void baytrail_init_pre_device(void) { @@ -119,4 +148,7 @@ void baytrail_init_pre_device(void) /* Get GPIO initial states from mainboard */ config = mainboard_get_gpios(); setup_soc_gpios(config); + + /* Indicate S3 resume to rest of ramstage. */ + s3_resume_prepare(); } |