From c6d30405f2c3beb47690745eeae4684e18d4be05 Mon Sep 17 00:00:00 2001 From: Vadim Bendebury Date: Fri, 1 Aug 2014 17:36:45 -0700 Subject: storm: supply vboot GPIO settings in coreboot table Storm provides three real and two fake gpios. To keep things simple, define them all as active low and provide appropriate values for the fake ones. BUG=chrome-os-partner:30705 TEST=with the appropriate depthcharge change booted proto0, observed appropriate behavior following the dev switch setting Change-Id: I248b90ee06d226a223b6fc0993f209acdd58c77d Signed-off-by: Patrick Georgi Original-Commit-Id: d48d1dcc88df0c1bd4c50f14dd2e7cd1dd4fba5d Original-Change-Id: Icb7fb55949fa97ead9d19f0da76392ee63bbb5b8 Original-Signed-off-by: Vadim Bendebury Original-Reviewed-on: https://chromium-review.googlesource.com/210922 Reviewed-on: http://review.coreboot.org/9117 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/mainboard/google/storm/mainboard.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'src') diff --git a/src/mainboard/google/storm/mainboard.c b/src/mainboard/google/storm/mainboard.c index 94f3a92215..8982f919ae 100644 --- a/src/mainboard/google/storm/mainboard.c +++ b/src/mainboard/google/storm/mainboard.c @@ -19,7 +19,11 @@ #include #include +#include #include +#include +#include + #include #include #include @@ -93,3 +97,27 @@ void lb_board(struct lb_header *header) dma->range_start = CONFIG_DRAM_DMA_START; dma->range_size = CONFIG_DRAM_DMA_SIZE; } + +static int read_gpio(gpio_t gpio_num) +{ + gpio_tlmm_config_set(gpio_num, GPIO_FUNC_DISABLE, + GPIO_NO_PULL, GPIO_2MA, GPIO_DISABLE); + udelay(10); /* Should be enough to settle. */ + return gpio_get_in_value(gpio_num); +} + +void fill_lb_gpios(struct lb_gpios *gpios) +{ + struct lb_gpio *gpio; + const int GPIO_COUNT = 5; + + gpios->size = sizeof(*gpios) + (GPIO_COUNT * sizeof(struct lb_gpio)); + gpios->count = GPIO_COUNT; + + gpio = gpios->gpios; + fill_lb_gpio(gpio++, 15, ACTIVE_LOW, "developer", read_gpio(15)); + fill_lb_gpio(gpio++, 16, ACTIVE_LOW, "recovery", read_gpio(16)); + fill_lb_gpio(gpio++, 17, ACTIVE_LOW, "write protect", read_gpio(17)); + fill_lb_gpio(gpio++, -1, ACTIVE_LOW, "power", 1); + fill_lb_gpio(gpio++, -1, ACTIVE_LOW, "lid", 0); +} -- cgit v1.2.3