cfc93cbb66
Remove SMM reinitialization since it's already done in src/ec/lenovo/h8.
Untested on a real hardware.
See also commit 8953d4a1 with Change-Id
I33fd829a7e34aefa8f76ca6020cc8e802f7aab17 ("mb/lenovo/*/smihandler: Get
rid of mainboard_io_trap_handler").
Change-Id: Icc582527db15f3a31cdee8948bc5a190240fdc84
Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36235
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
131 lines
2.9 KiB
C
131 lines
2.9 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2008-2009 coresystems GmbH
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; version 2 of
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* the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <arch/io.h>
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#include <console/console.h>
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#include <cpu/x86/smm.h>
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#include <southbridge/intel/ibexpeak/nvs.h>
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#include <southbridge/intel/common/pmutil.h>
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#include <northbridge/intel/nehalem/nehalem.h>
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#include <ec/acpi/ec.h>
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#include <ec/lenovo/h8/h8.h>
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#include <delay.h>
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#include "dock.h"
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#include "smi.h"
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#define GPE_EC_SCI 1
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#define GPE_EC_WAKE 13
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int mainboard_io_trap_handler(int smif)
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{
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switch (smif) {
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case SMI_DOCK_CONNECT:
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ec_clr_bit(0x03, 2);
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udelay(250000);
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dock_connect();
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ec_set_bit(0x03, 2);
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/* set dock LED to indicate status */
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ec_write(0x0c, 0x09);
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ec_write(0x0c, 0x88);
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break;
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case SMI_DOCK_DISCONNECT:
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ec_clr_bit(0x03, 2);
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dock_disconnect();
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break;
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default:
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return 0;
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}
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/* On success, the IO Trap Handler returns 1
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* On failure, the IO Trap Handler returns a value != 1 */
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return 1;
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}
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static void mainboard_smi_handle_ec_sci(void)
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{
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u8 status = inb(EC_SC);
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u8 event;
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if (!(status & EC_SCI_EVT))
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return;
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event = ec_query();
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printk(BIOS_DEBUG, "EC event %02x\n", event);
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switch (event) {
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case 0x18:
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/* Fn-F9 key */
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case 0x27:
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/* Power loss */
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case 0x50:
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/* Undock Key */
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mainboard_io_trap_handler(SMI_DOCK_DISCONNECT);
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break;
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case 0x37:
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case 0x58:
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/* Dock Event */
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mainboard_io_trap_handler(SMI_DOCK_CONNECT);
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break;
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default:
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break;
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}
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}
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void mainboard_smi_gpi(u32 gpi_sts)
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{
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if (gpi_sts & (1 << GPE_EC_SCI))
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mainboard_smi_handle_ec_sci();
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}
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int mainboard_smi_apmc(u8 data)
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{
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switch (data) {
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case APM_CNT_ACPI_ENABLE:
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/* use 0x1600/0x1604 to prevent races with userspace */
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ec_set_ports(0x1604, 0x1600);
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/* route H8SCI to SCI */
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gpi_route_interrupt(GPE_EC_SCI, GPI_IS_SCI);
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/* discard all events, and enable attention */
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ec_write(0x80, 0x01);
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break;
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case APM_CNT_ACPI_DISABLE:
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/* we have to use port 0x62/0x66, as 0x1600/0x1604 doesn't
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provide a EC query function */
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ec_set_ports(0x66, 0x62);
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/* route H8SCI# to SMI */
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gpi_route_interrupt(GPE_EC_SCI, GPI_IS_SMI);
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/* discard all events, and enable attention */
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ec_write(0x80, 0x01);
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break;
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default:
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break;
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}
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return 0;
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}
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void mainboard_smi_sleep(u8 slp_typ)
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{
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if (slp_typ == 3) {
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u8 ec_wake = ec_read(0x32);
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/* If EC wake events are enabled, enable wake on EC WAKE GPE. */
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if (ec_wake & 0x14) {
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/* Redirect EC WAKE GPE to SCI. */
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gpi_route_interrupt(GPE_EC_WAKE, GPI_IS_SCI);
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}
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}
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}
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