4ff218aa71
Change-Id: I88406fa1b54312616e6717af3d924436dc4ff1a6 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58899 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <bootmode.h>
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#include <boot/coreboot_tables.h>
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#include <device/pci_ops.h>
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#include <device/device.h>
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#include <types.h>
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#include <vendorcode/google/chromeos/chromeos.h>
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#include <ec/google/chromeec/ec.h>
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#include <soc/chromeos.h>
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#include <soc/sata.h>
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#include <southbridge/intel/lynxpoint/lp_gpio.h>
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#include "onboard.h"
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#define FLAG_SPI_WP 0
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#define FLAG_REC_MODE 1
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void fill_lb_gpios(struct lb_gpios *gpios)
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{
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struct lb_gpio chromeos_gpios[] = {
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{GPIO_REC_MODE, ACTIVE_LOW,
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!get_recovery_mode_switch(), "presence"},
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{-1, ACTIVE_HIGH, 1, "lid"},
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{-1, ACTIVE_HIGH, 0, "power"},
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{-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
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};
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lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
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}
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static bool raw_write_protect_state(void)
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{
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return get_gpio(GPIO_SPI_WP);
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}
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static bool raw_recovery_mode_switch(void)
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{
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return !get_gpio(GPIO_REC_MODE);
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}
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int get_write_protect_state(void)
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{
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const pci_devfn_t dev = PCI_DEV(0, 0x1f, 2);
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return (pci_s_read_config32(dev, SATA_SP) >> FLAG_SPI_WP) & 1;
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}
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int get_recovery_mode_switch(void)
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{
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const pci_devfn_t dev = PCI_DEV(0, 0x1f, 2);
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return (pci_s_read_config32(dev, SATA_SP) >> FLAG_REC_MODE) & 1;
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}
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void init_bootmode_straps(void)
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{
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u32 flags = 0;
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const pci_devfn_t dev = PCI_DEV(0, 0x1f, 2);
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/* Write Protect: GPIO58 = GPIO_SPI_WP, active high */
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if (raw_write_protect_state())
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flags |= (1 << FLAG_SPI_WP);
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/* Recovery: GPIO12 = RECOVERY_L, active low */
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if (raw_recovery_mode_switch())
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flags |= (1 << FLAG_REC_MODE);
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/* Developer: Virtual */
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pci_s_write_config32(dev, SATA_SP, flags);
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}
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static const struct cros_gpio cros_gpios[] = {
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CROS_GPIO_REC_AL(GPIO_REC_MODE, CROS_GPIO_DEVICE_NAME),
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CROS_GPIO_WP_AH(GPIO_SPI_WP, CROS_GPIO_DEVICE_NAME),
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};
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DECLARE_CROS_GPIOS(cros_gpios);
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int get_ec_is_trusted(void)
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{
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/* Do not have a Chrome EC involved in entering recovery mode;
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Always return trusted. */
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return 1;
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}
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