diff options
Diffstat (limited to 'src/mainboard/google/gale')
| -rw-r--r-- | src/mainboard/google/gale/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/mainboard/google/gale/boardid.c | 18 | ||||
| -rw-r--r-- | src/mainboard/google/gale/chromeos.c | 49 |
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; } |