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ACPI: Get S3 resume state from romstage_handoff

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There is nothing platform specific in retrieving S3 resume state from
romstage_handoff structure. Boards without EARLY_CBMEM_INIT update
acpi_slp_type from ACPI power-management block or scratchpad registers.

Change-Id: Ifc3755f891a0810473b3216c1fec8e45908fc1ab
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8188
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
This commit is contained in:
Kyösti Mälkki
2015-01-08 20:03:18 +02:00
parent a63719407f
commit 9e94dbfcd0
12 changed files with 45 additions and 128 deletions
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23
src/soc/intel/broadwell/systemagent.c
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@ -29,7 +29,6 @@
#include <stdlib.h>
#include <string.h>
#include <cbmem.h>
#include <romstage_handoff.h>
#include <vendorcode/google/chromeos/chromeos.h>
#include <broadwell/cpu.h>
#include <broadwell/iomap.h>
@ -412,27 +411,6 @@ static void systemagent_init(struct device *dev)
set_power_limits(28);
}
static void systemagent_enable(device_t dev)
{
#if CONFIG_HAVE_ACPI_RESUME
struct romstage_handoff *handoff;
handoff = cbmem_find(CBMEM_ID_ROMSTAGE_INFO);
if (handoff == NULL) {
printk(BIOS_DEBUG, "Unknown boot method, assuming normal.\n");
acpi_slp_type = 0;
} else if (handoff->s3_resume) {
printk(BIOS_DEBUG, "S3 Resume.\n");
acpi_slp_type = 3;
} else {
printk(BIOS_DEBUG, "Normal boot.\n");
acpi_slp_type = 0;
}
#endif
}
unsigned long acpi_fill_slit(unsigned long current)
{
// Not implemented
@ -451,7 +429,6 @@ static struct device_operations systemagent_ops = {
.set_resources = &pci_dev_set_resources,
.enable_resources = &pci_dev_enable_resources,
.init = &systemagent_init,
.enable = &systemagent_enable,
.ops_pci = &broadwell_pci_ops,
};