commit c6d30405f2c3beb47690745eeae4684e18d4be05
author Vadim Bendebury <vbendeb@chromium.org> Fri Aug 01 17:36:45 2014 -0700
committer Patrick Georgi <pgeorgi@google.com> Sat Mar 28 08:48:08 2015 +0100
tree b6ee59bee3cb0e8c8b084ba02e09ce087bf3d8d9
parent d9becd2183da9f4174e2dc2d686ad5a66c4e4e22

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 <pgeorgi@chromium.org>
Original-Commit-Id: d48d1dcc88df0c1bd4c50f14dd2e7cd1dd4fba5d
Original-Change-Id: Icb7fb55949fa97ead9d19f0da76392ee63bbb5b8
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
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 <stefan.reinauer@coreboot.org>

src/mainboard/google/storm/mainboard.c

diff --git a/src/mainboard/google/storm/mainboard.c b/src/mainboard/google/storm/mainboard.c
index 94f3a92..8982f91 100644
--- a/src/mainboard/google/storm/mainboard.c
+++ b/src/mainboard/google/storm/mainboard.c
@@ -19,7 +19,11 @@
 
 #include <arch/cache.h>
 #include <boot/coreboot_tables.h>
+#include <console/console.h>
 #include <device/device.h>
+#include <delay.h>
+#include <string.h>
+
 #include <soc/qualcomm/ipq806x/include/clock.h>
 #include <soc/qualcomm/ipq806x/include/gpio.h>
 #include <soc/qualcomm/ipq806x/include/usb.h>
@@ -93,3 +97,27 @@
 	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);
+}