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-rw-r--r--src/mainboard/google/gale/Makefile.inc1
-rw-r--r--src/mainboard/google/gale/boardid.c18
-rw-r--r--src/mainboard/google/gale/chromeos.c49
3 files changed, 42 insertions, 26 deletions
diff --git a/src/mainboard/google/gale/Makefile.inc b/src/mainboard/google/gale/Makefile.inc
index e6236756dd..6c7e55f6bf 100644
--- a/src/mainboard/google/gale/Makefile.inc
+++ b/src/mainboard/google/gale/Makefile.inc
@@ -27,6 +27,7 @@ verstage-y += reset.c
verstage-y += verstage.c
romstage-y += romstage.c
+romstage-y += boardid.c
romstage-y += cdp.c
romstage-y += chromeos.c
romstage-y += mmu.c
diff --git a/src/mainboard/google/gale/boardid.c b/src/mainboard/google/gale/boardid.c
index 295550fe2b..3e6fd8a185 100644
--- a/src/mainboard/google/gale/boardid.c
+++ b/src/mainboard/google/gale/boardid.c
@@ -19,18 +19,8 @@
#include <stdlib.h>
/*
- * Storm boards dedicate to the board ID three GPIOs in tertiary mode: 29, 30
- * and 68. On proto0 GPIO68 is used and tied low, so it reads as 'zero' by
- * gpio_base3_value(), whereas the other two pins are not connected
- * and read as 'two'. This results in gpio_base3_value() returning
- * 8 on proto0.
- *
- * Three tertitiary signals could represent 27 different values. To make
- * calculated board ID value continuous and starting at zero, offset the
- * calculated value by 19 (i.e. 27 - 8) and return modulo 27 of the offset
- * number. This results in proto0 returning zero as the board ID, the future
- * revisions will have the inputs configured to match the actual board
- * revision.
+ * Gale boards dedicate to the board ID three GPIOs in ternary mode: 64, 65
+ * and 66.
*/
static int board_id_value = -1;
@@ -38,11 +28,9 @@ static int board_id_value = -1;
static uint8_t get_board_id(void)
{
uint8_t bid;
- gpio_t hw_rev_gpios[] = {[2] = 68, [1] = 30, [0] = 29}; /* 29 is LSB */
- int offset = 19;
+ gpio_t hw_rev_gpios[] = {[2] = 66, [1] = 65, [0] = 64}; /* 64 is LSB */
bid = gpio_base3_value(hw_rev_gpios, ARRAY_SIZE(hw_rev_gpios));
- bid = (bid + offset) % 27;
printk(BIOS_INFO, "Board ID %d\n", bid);
return bid;
diff --git a/src/mainboard/google/gale/chromeos.c b/src/mainboard/google/gale/chromeos.c
index beeb2a5f18..06b3d8537b 100644
--- a/src/mainboard/google/gale/chromeos.c
+++ b/src/mainboard/google/gale/chromeos.c
@@ -25,13 +25,36 @@
#include <timer.h>
#include <vendorcode/google/chromeos/chromeos.h>
-#define DEV_SW 41
+#define DEV_SW 41
#define DEV_POL ACTIVE_LOW
-#define REC_SW 7
#define REC_POL ACTIVE_LOW
-#define WP_SW 6
-#define WP_POL ACTIVE_LOW
+#define WP_POL ACTIVE_LOW
+static int get_rec_sw_gpio_pin(void)
+{
+ uint8_t board_rev = board_id();
+ switch (board_rev) {
+ case BOARD_ID_GALE_EVT:
+ case BOARD_ID_GALE_EVT2:
+ return 7;
+ case BOARD_ID_GALE_EVT3:
+ default:
+ return 57;
+ }
+}
+
+static int get_wp_status_gpio_pin(void)
+{
+ uint8_t board_rev = board_id();
+ switch (board_rev) {
+ case BOARD_ID_GALE_EVT:
+ case BOARD_ID_GALE_EVT2:
+ return 6;
+ case BOARD_ID_GALE_EVT3:
+ default:
+ return 53;
+ }
+}
static int read_gpio(gpio_t gpio_num)
{
gpio_tlmm_config_set(gpio_num, GPIO_FUNC_DISABLE,
@@ -43,9 +66,11 @@ static int read_gpio(gpio_t gpio_num)
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio chromeos_gpios[] = {
- {DEV_SW, ACTIVE_LOW, read_gpio(DEV_SW), "developer"},
- {REC_SW, ACTIVE_LOW, read_gpio(REC_SW), "recovery"},
- {WP_SW, ACTIVE_LOW, read_gpio(WP_SW), "write protect"},
+ {DEV_SW, DEV_POL, read_gpio(DEV_SW), "developer"},
+ {get_rec_sw_gpio_pin(), REC_POL,
+ read_gpio(get_rec_sw_gpio_pin()), "recovery"},
+ {get_wp_status_gpio_pin(), WP_POL,
+ read_gpio(get_wp_status_gpio_pin()), "write protect"},
{-1, ACTIVE_LOW, 1, "power"},
{-1, ACTIVE_LOW, 0, "lid"},
};
@@ -88,12 +113,14 @@ static enum switch_state get_switch_state(void)
{
struct stopwatch sw;
int sampled_value;
+ uint8_t rec_sw;
static enum switch_state saved_state = not_probed;
if (saved_state != not_probed)
return saved_state;
- sampled_value = read_gpio(REC_SW) ^ !REC_POL;
+ rec_sw = get_rec_sw_gpio_pin();
+ sampled_value = read_gpio(rec_sw) ^ !REC_POL;
if (!sampled_value) {
saved_state = no_req;
@@ -107,7 +134,7 @@ static enum switch_state get_switch_state(void)
stopwatch_init_msecs_expire(&sw, WIPEOUT_MODE_DELAY_MS);
do {
- sampled_value = read_gpio(REC_SW) ^ !REC_POL;
+ sampled_value = read_gpio(rec_sw) ^ !REC_POL;
if (!sampled_value)
break;
} while (!stopwatch_expired(&sw));
@@ -117,7 +144,7 @@ static enum switch_state get_switch_state(void)
printk(BIOS_INFO, "wipeout requested, checking recovery\n");
stopwatch_init_msecs_expire(&sw, RECOVERY_MODE_EXTRA_DELAY_MS);
do {
- sampled_value = read_gpio(REC_SW) ^ !REC_POL;
+ sampled_value = read_gpio(rec_sw) ^ !REC_POL;
if (!sampled_value)
break;
} while (!stopwatch_expired(&sw));
@@ -149,5 +176,5 @@ int get_wipeout_mode_switch(void)
int get_write_protect_state(void)
{
- return read_gpio(WP_SW) ^ !WP_POL;
+ return read_gpio(get_wp_status_gpio_pin()) ^ !WP_POL;
}