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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)
This commit is contained in:
Aaron Durbin 2013-10-30 15:25:42 -05:00 committed by Aaron Durbin
parent 61cd57ba36
commit 6e77beec96
1 changed files with 34 additions and 2 deletions
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36
src/soc/intel/baytrail/ramstage.c
View File

@ -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();
}