98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <console/console.h>
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#include <cpu/x86/smm.h>
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#include <southbridge/intel/bd82x6x/nvs.h>
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#include <southbridge/intel/bd82x6x/pch.h>
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#include <southbridge/intel/bd82x6x/me.h>
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#include <southbridge/intel/common/pmutil.h>
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#include <southbridge/intel/common/pmbase.h>
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#include <northbridge/intel/sandybridge/sandybridge.h>
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#include <cpu/intel/model_206ax/model_206ax.h>
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#include <ec/compal/ene932/ec.h>
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#include "ec.h"
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static u8 mainboard_smi_ec(void)
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{
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u8 src;
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ec_kbc_write_cmd(0x56);
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src = ec_kbc_read_ob();
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printk(BIOS_DEBUG, "mainboard_smi_ec src: %x\n", src);
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switch (src) {
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case EC_BATTERY_CRITICAL:
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break;
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case EC_LID_CLOSE:
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printk(BIOS_DEBUG, "LID CLOSED, SHUTDOWN\n");
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/* Go to S5 */
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write_pmbase32(PM1_CNT, read_pmbase32(PM1_CNT) | (0xf << 10));
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break;
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}
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return src;
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}
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void mainboard_smi_gpi(u32 gpi_sts)
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{
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printk(BIOS_DEBUG, "mainboard_smi_gpi: %x\n", gpi_sts);
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if (gpi_sts & (1 << EC_SMI_GPI)) {
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/* Process all pending events from EC */
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while (mainboard_smi_ec() != EC_NO_EVENT);
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}
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else if (gpi_sts & (1 << EC_LID_GPI)) {
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printk(BIOS_DEBUG, "LID CLOSED, SHUTDOWN\n");
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/* Go to S5 */
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write_pmbase32(PM1_CNT, read_pmbase32(PM1_CNT) | (0xf << 10));
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}
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}
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void mainboard_smi_sleep(u8 slp_typ)
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{
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printk(BIOS_DEBUG, "mainboard_smi_sleep: %x\n", slp_typ);
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/* Disable SCI and SMI events */
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/* Clear pending events that may trigger immediate wake */
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/* Enable wake events */
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/* Tell the EC to Disable USB power */
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if (gnvs->s3u0 == 0 && gnvs->s3u1 == 0) {
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ec_kbc_write_cmd(0x45);
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ec_kbc_write_ib(0xF2);
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}
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}
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int mainboard_smi_apmc(u8 apmc)
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{
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printk(BIOS_DEBUG, "mainboard_smi_apmc: %x\n", apmc);
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switch (apmc) {
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case APM_CNT_ACPI_ENABLE:
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printk(BIOS_DEBUG, "APMC: ACPI_EN\n");
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/* Clear all pending events */
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/* EC cmd:59 data:E8 */
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ec_kbc_write_cmd(0x59);
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ec_kbc_write_ib(0xE8);
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/* Set LID GPI to generate SCIs */
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gpi_route_interrupt(EC_LID_GPI, GPI_IS_SCI);
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break;
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case APM_CNT_ACPI_DISABLE:
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printk(BIOS_DEBUG, "APMC: ACPI_DIS\n");
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/* Clear all pending events */
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/* EC cmd:59 data:e9 */
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ec_kbc_write_cmd(0x59);
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ec_kbc_write_ib(0xE9);
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/* Set LID GPI to generate SMIs */
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gpi_route_interrupt(EC_LID_GPI, GPI_IS_SMI);
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break;
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}
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return 0;
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}
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