diff options
| author | Patrick Georgi <pgeorgi@chromium.org> | 2015-06-30 12:49:50 +0200 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2015-06-30 21:34:05 +0200 |
| commit | 2f31ef11154441b13c0f9d75b02b14fd9fa835a6 (patch) | |
| tree | eb86e6cd2370cfeebd9ccfefb14ce28699b4b4a0 /src | |
| parent | 94b8ad48790c23220d5b54eacac97460826d3ab4 (diff) | |
google/link: implement get_write_protect_state
Current vboot wants that function.
Change-Id: I9d3a592c448cf2af10f76cae4518341cbc0a6f41
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/10727
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src')
| -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); |