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superio/ite/it8728f: Support setting power state after power failure

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This properly supports power_on_after_fail setting on affected
mainboards.

Tested on GA-H61M-S2PV

Change-Id: I3dcc4f032bc5f629fb916c4122beb8dc096bab20
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82737
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This commit is contained in:
Vladimir Serbinenko 2024-05-19 16:32:24 +03:00 committed by Felix Held
parent 36555afb96
commit 32d21ff3eb
1 changed files with 29 additions and 0 deletions
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29
src/superio/ite/it8728f/superio.c
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@ -5,14 +5,21 @@
#include <superio/conf_mode.h>
#include <pc80/keyboard.h>
#include <superio/ite/common/env_ctrl.h>
#include <option.h>
#include "chip.h"
#include "it8728f.h"
#define MAINBOARD_POWER_OFF 0
#define MAINBOARD_POWER_ON 1
#define MAINBOARD_POWER_KEEP 2
static void it8728f_init(struct device *dev)
{
const struct superio_ite_it8728f_config *conf = dev->chip_info;
const struct resource *res;
uint8_t power_status;
uint8_t byte_f2, byte_f4;
if (!dev->enabled)
return;
@ -24,6 +31,28 @@ static void it8728f_init(struct device *dev)
if (!conf || !res)
break;
ite_ec_init(res->base, &conf->ec);
/* Set power state after power fail */
power_status = get_uint_option("power_on_after_fail",
CONFIG_MAINBOARD_POWER_FAILURE_STATE);
pnp_enter_conf_mode(dev);
pnp_set_logical_device(dev);
byte_f4 = pnp_read_config(dev, 0xf4);
byte_f2 = pnp_read_config(dev, 0xf2);
if (power_status == MAINBOARD_POWER_ON) {
byte_f4 |= 0x20;
} else if (power_status == MAINBOARD_POWER_KEEP) {
byte_f4 &= ~0x20;
byte_f2 |= 0x20;
} else {
byte_f4 &= ~0x20;
byte_f2 &= ~0x20;
}
pnp_write_config(dev, 0xf4, byte_f4);
pnp_write_config(dev, 0xf2, byte_f2);
pnp_exit_conf_mode(dev);
printk(BIOS_INFO, "set power %u after power fail\n", power_status);
break;
case IT8728F_KBCK:
set_kbc_ps2_mode();