New patch to review for coreboot: 1d785fa baskingridge: dev, recovery, and WP switch support

[Stefan Reinauer]

Stefan Reinauer ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/2676

-gerrit

commit 1d785fa32a0cc07f16748ab2eab3f3e1749ae4eb
Author: Aaron Durbin 
Date:   Thu Dec 13 16:51:41 2012 -0600

baskingridge: dev, recovery, and WP switch support

This commit adds support for the deveveloper, recovery,
    and write protect querying. It just uses jumpers on the
    Basking Ridge board.

Noted ability to togggle jumpers results in toggling the
    respective modes.

Change-Id: Iac189a1fa0245654591e2e9075380db422a329a0
    Signed-off-by: Aaron Durbin 
---
 src/mainboard/intel/baskingridge/chromeos.c | 45 +++++++++++++++++------------
 1 file changed, 26 insertions(+), 19 deletions(-)

diff --git a/src/mainboard/intel/baskingridge/chromeos.c b/src/mainboard/intel/baskingridge/chromeos.c
index 4ee9d62..6a1bc26 100644
--- a/src/mainboard/intel/baskingridge/chromeos.c
+++ b/src/mainboard/intel/baskingridge/chromeos.c
@@ -27,6 +27,7 @@
 #include <device/pci.h>
 #endif
 #include <southbridge/intel/lynxpoint/pch.h>
+#include <southbridge/intel/lynxpoint/gpio.h>

#ifndef __PRE_RAM__
 #include <boot/coreboot_tables.h>
@@ -44,30 +45,30 @@ void fill_lb_gpios(struct lb_gpios *gpios)
    if (!gpio_base)
    	return;

-	u32 gp_lvl = inl(gpio_base + 0x0c);
-	u32 gp_lvl2 = inl(gpio_base + 0x38);
-	/* u32 gp_lvl3 = inl(gpio_base + 0x48); */
+	u32 gp_lvl  = inl(gpio_base + GP_LVL);
+	u32 gp_lvl2 = inl(gpio_base + GP_LVL2);
+	u32 gp_lvl3 = inl(gpio_base + GP_LVL3);

gpios->size = sizeof(*gpios) + (GPIO_COUNT * sizeof(struct lb_gpio));
    gpios->count = GPIO_COUNT;

-	/* Write Protect: GPIO48 */
-	gpios->gpios[0].port = 48;
+	/* Write Protect: GPIO22 */
+	gpios->gpios[0].port = 0;
    gpios->gpios[0].polarity = ACTIVE_LOW;
-	gpios->gpios[0].value = (gp_lvl2 >> (48-32)) & 1;
+	gpios->gpios[0].value = (gp_lvl >> 22) & 1;
    strncpy((char *)gpios->gpios[0].name,"write protect",
    						GPIO_MAX_NAME_LENGTH);

-	/* Recovery: GPIO22 */
-	gpios->gpios[1].port = 22;
-	gpios->gpios[1].polarity = ACTIVE_LOW;
-	gpios->gpios[1].value = (gp_lvl >> 22) & 1;
+	/* Recovery: GPIO69 - SV_DETECT - J8E3 (silkscreen: J8E2) */
+	gpios->gpios[1].port = 69;
+	gpios->gpios[1].polarity = ACTIVE_HIGH;
+	gpios->gpios[1].value = (gp_lvl3 >> (69-64)) & 1;
    strncpy((char *)gpios->gpios[1].name,"recovery", GPIO_MAX_NAME_LENGTH);

-	/* Developer: GPIO57 */
-	gpios->gpios[2].port = 57;
+	/* Developer: GPIO48 - BIOS_RESP - J8E4 (silkscreen: J8E3) */
+	gpios->gpios[2].port = 48;
    gpios->gpios[2].polarity = ACTIVE_LOW;
-	gpios->gpios[2].value = (gp_lvl2 >> (57-32)) & 1;
+	gpios->gpios[2].value = (gp_lvl2 >> (48-32)) & 1;
    strncpy((char *)gpios->gpios[2].name,"developer", GPIO_MAX_NAME_LENGTH);

/* Hard code the lid switch GPIO to open. */
@@ -99,10 +100,13 @@ int get_developer_mode_switch(void)
    dev = dev_find_slot(0, PCI_DEVFN(0x1f,0));
 #endif
    u16 gpio_base = pci_read_config32(dev, GPIOBASE) & 0xfffe;
-	u32 gp_lvl2 = inl(gpio_base + 0x38);
+	u32 gp_lvl2 = inl(gpio_base + GP_LVL2);

-	/* Developer: GPIO17, active high */
-	return (gp_lvl2 >> (57-32)) & 1;
+	/*
+	 * Developer: GPIO48, Connected to J8E4, however the silkscreen says
+	 * J8E3. The jumper is active low.
+	 */
+	return !((gp_lvl2 >> (48-32)) & 1);
 }

int get_recovery_mode_switch(void)
@@ -114,9 +118,12 @@ int get_recovery_mode_switch(void)
    dev = dev_find_slot(0, PCI_DEVFN(0x1f,0));
 #endif
    u16 gpio_base = pci_read_config32(dev, GPIOBASE) & 0xfffe;
-	u32 gp_lvl = inl(gpio_base + 0x0c);
+	u32 gp_lvl3 = inl(gpio_base + GP_LVL3);

-	/* Recovery: GPIO22, active low */
-	return !((gp_lvl >> 22) & 1);
+	/*
+	 * Recovery: GPIO69, Connected to J8E3, however the silkscreen says
+	 * J8E2. The jump is active high.
+	 */
+	return (gp_lvl3 >> (69-64)) & 1;
 }