New patch to review for coreboot: google/parrot: Implement functions required by CHROMEOS

[Patrick Georgi]

Patrick Georgi ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/11063

-gerrit

commit e950e9a5921dc3b5c8721142b6e880d04cbe8186
Author: Patrick Georgi 
Date:   Mon Jul 27 23:18:15 2015 +0200

google/parrot: Implement functions required by CHROMEOS

BRANCH=none
    BUG=chromium:513990
    TEST=google/parrot builds

Change-Id: I5e354d6160e554f1c41e84eac6102e84de34b81d
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: d5a6253e6f19815736a6b433f6c58e3be2e5841b
    Original-Change-Id: I3a3bf9ead333d56472f856c9efefff239fb70586
    Original-Signed-off-by: Patrick Georgi 
    Original-Reviewed-on: https://chromium-review.googlesource.com/288852
    Original-Reviewed-by: Stefan Reinauer 
---
 src/mainboard/google/parrot/chromeos.c | 41 +++++++++++++++++++++++++++++-----
 1 file changed, 36 insertions(+), 5 deletions(-)

diff --git a/src/mainboard/google/parrot/chromeos.c b/src/mainboard/google/parrot/chromeos.c
index 0c7f45a..164e192 100644
--- a/src/mainboard/google/parrot/chromeos.c
+++ b/src/mainboard/google/parrot/chromeos.c
@@ -43,16 +43,13 @@ void fill_lb_gpios(struct lb_gpios *gpios)
    if (!gpio_base)
    	return;

-	u32 gp_lvl = inl(gpio_base + GP_LVL);
-	u32 gp_lvl3 = inl(gpio_base + GP_LVL3);
-
    gpios->size = sizeof(*gpios) + (GPIO_COUNT * sizeof(struct lb_gpio));
    gpios->count = GPIO_COUNT;

/* Write Protect: GPIO70 active high */
    gpios->gpios[0].port = 70;
    gpios->gpios[0].polarity = ACTIVE_LOW;
-	gpios->gpios[0].value = (gp_lvl3 >> (70 - 64)) & 1;
+	gpios->gpios[0].value = !get_write_protect_state();
    strncpy((char *)gpios->gpios[0].name,"write protect", GPIO_MAX_NAME_LENGTH);

/* Recovery: Virtual GPIO in the EC (Servo GPIO68 active low) */
@@ -70,7 +67,7 @@ void fill_lb_gpios(struct lb_gpios *gpios)
    /* Lid switch GPIO active high (open). */
    gpios->gpios[3].port = 15;
    gpios->gpios[3].polarity = ACTIVE_HIGH;
-	gpios->gpios[3].value = ((gp_lvl >> 15) & 1);
+	gpios->gpios[3].value = get_lid_switch();
    strncpy((char *)gpios->gpios[3].name,"lid", GPIO_MAX_NAME_LENGTH);

/* Power Button */
@@ -88,6 +85,22 @@ void fill_lb_gpios(struct lb_gpios *gpios)
 }
 #endif

+int get_lid_switch(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;
+
+	if (!gpio_base)
+		return 0;
+
+	u32 gp_lvl = inl(gpio_base + GP_LVL);
+	return (gp_lvl >> 15) & 1;
+}

int get_developer_mode_switch(void)
 {
@@ -115,6 +128,24 @@ int get_developer_mode_switch(void)
    return !((gp_lvl >> 17) & 1);
 }

+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;
+
+	if (!gpio_base)
+		return 0;
+
+	u32 gp_lvl3 = inl(gpio_base + GP_LVL3);
+
+	return !((gp_lvl3 >> (70 - 64)) & 1);
+}
+
 int get_recovery_mode_switch(void)
 {
    u8 rec_mode;