diff options
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/link/chromeos.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/src/mainboard/google/link/chromeos.c b/src/mainboard/google/link/chromeos.c index a020b06664..bc8a96ae13 100644 --- a/src/mainboard/google/link/chromeos.c +++ b/src/mainboard/google/link/chromeos.c @@ -33,22 +33,13 @@ void fill_lb_gpios(struct lb_gpios *gpios) { - device_t dev = dev_find_slot(0, PCI_DEVFN(0x1f,0)); - u16 gpio_base = pci_read_config32(dev, GPIOBASE) & 0xfffe; - //u16 gen_pmcon_1 = pci_read_config32(dev, GEN_PMCON_1); - - if (!gpio_base) - return; - - u32 gp_lvl2 = inl(gpio_base + 0x38); - gpios->size = sizeof(*gpios) + (GPIO_COUNT * sizeof(struct lb_gpio)); gpios->count = GPIO_COUNT; /* Write Protect: GPIO57 = PCH_SPI_WP_D */ gpios->gpios[0].port = 57; gpios->gpios[0].polarity = ACTIVE_HIGH; - gpios->gpios[0].value = (gp_lvl2 >> (57 - 32)) & 1; + gpios->gpios[0].value = get_write_protect_state(); strncpy((char *)gpios->gpios[0].name,"write protect", GPIO_MAX_NAME_LENGTH); /* Recovery: the "switch" comes from the EC */ @@ -84,6 +75,25 @@ void fill_lb_gpios(struct lb_gpios *gpios) } #endif +int get_write_protect_state(void) +{ + device_t dev; +#ifdef __PRE_RAM__ + dev = PCI_DEV(0, 0x1f, 0); +#else + dev = dev_find_slot(0, PCI_DEVFN(0x1f, 0)); +#endif + u16 gpio_base = pci_read_config32(dev, GPIOBASE) & 0xfffe; + //u16 gen_pmcon_1 = pci_read_config32(dev, GEN_PMCON_1); + + if (!gpio_base) + return -1; + + u32 gp_lvl2 = inl(gpio_base + 0x38); + + return (gp_lvl2 >> (57 - 32)) & 1; +} + int get_lid_switch(void) { u8 ec_switches = inb(EC_LPC_ADDR_MEMMAP + EC_MEMMAP_SWITCHES); |