/* SPDX-License-Identifier: GPL-2.0-only */ #include <bootmode.h> #include <boot/coreboot_tables.h> #include <device/pci_ops.h> #include <device/device.h> #include <southbridge/intel/bd82x6x/pch.h> #include <southbridge/intel/common/gpio.h> #include <types.h> #include <vendorcode/google/chromeos/chromeos.h> #include "onboard.h" #define FLAG_SPI_WP 0 #define FLAG_REC_MODE 1 void fill_lb_gpios(struct lb_gpios *gpios) { struct lb_gpio chromeos_gpios[] = { /* Recovery: GPIO42 = CHP3_REC_MODE# */ {GPIO_REC_MODE, ACTIVE_LOW, !get_recovery_mode_switch(), "presence"}, /* Hard code the lid switch GPIO to open. */ {100, ACTIVE_HIGH, 1, "lid"}, /* Power Button */ {101, ACTIVE_LOW, get_power_switch(), "power"}, /* Did we load the VGA Option ROM? */ /* -1 indicates that this is a pseudo GPIO */ {-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"}, }; lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios)); } static bool raw_write_protect_state(void) { return get_gpio(GPIO_SPI_WP); } static bool raw_recovery_mode_switch(void) { return !get_gpio(GPIO_REC_MODE); } int get_power_switch(void) { const pci_devfn_t dev = PCI_DEV(0, 0x1f, 0); u16 gen_pmcon_1 = pci_s_read_config32(dev, GEN_PMCON_1); return (gen_pmcon_1 >> 9) & 1; } int get_write_protect_state(void) { const pci_devfn_t dev = PCI_DEV(0, 0x1f, 2); return (pci_s_read_config32(dev, SATA_SP) >> FLAG_SPI_WP) & 1; } int get_recovery_mode_switch(void) { const pci_devfn_t dev = PCI_DEV(0, 0x1f, 2); return (pci_s_read_config32(dev, SATA_SP) >> FLAG_REC_MODE) & 1; } void init_bootmode_straps(void) { u32 flags = 0; const pci_devfn_t dev = PCI_DEV(0, 0x1f, 2); /* Write Protect: GPIO68 = CHP3_SPI_WP, active high */ if (raw_write_protect_state()) flags |= (1 << FLAG_SPI_WP); /* Recovery: GPIO42 = CHP3_REC_MODE#, active low */ if (raw_recovery_mode_switch()) flags |= (1 << FLAG_REC_MODE); pci_s_write_config32(dev, SATA_SP, flags); } static const struct cros_gpio cros_gpios[] = { CROS_GPIO_REC_AL(GPIO_REC_MODE, CROS_GPIO_DEVICE_NAME), CROS_GPIO_WP_AH(GPIO_SPI_WP, CROS_GPIO_DEVICE_NAME), }; void mainboard_chromeos_acpi_generate(void) { chromeos_acpi_gpio_generate(cros_gpios, ARRAY_SIZE(cros_gpios)); }