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authorPatrick Georgi <pgeorgi@chromium.org>2015-06-30 12:49:50 +0200
committerStefan Reinauer <stefan.reinauer@coreboot.org>2015-06-30 21:34:05 +0200
commit2f31ef11154441b13c0f9d75b02b14fd9fa835a6 (patch)
treeeb86e6cd2370cfeebd9ccfefb14ce28699b4b4a0
parent94b8ad48790c23220d5b54eacac97460826d3ab4 (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>
-rw-r--r--src/mainboard/google/link/chromeos.c30
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);