diff options
| author | sselvar2 <susendra.selvaraj@intel.com> | 2016-06-09 21:20:08 +0530 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-07-26 17:32:33 -0700 |
| commit | bba272a8776c61f308aafa5ed7d8bbd1f99f5282 (patch) | |
| tree | ed429676818be996b2f44e5807ed37e5e9dbfcc1 | |
| parent | 085c20557c1f0b936a27b945185e620fdf47c36d (diff) | |
| download | vboot-bba272a8776c61f308aafa5ed7d8bbd1f99f5282.tar.gz | |
apollolake: Find GPIO bank offset for write protect pin
Specify function to find GPIO bank offset for write protect pin in
Broxton.
BUG=chrome-os-partner:55604
BRANCH=none
TEST=verify crossystem output with and without WP screw.
Change-Id: Ied41f31e59e0dfc699fbcd1b6bb8688f1fea549c
Signed-off-by: sselvar2 <susendra.selvaraj@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/358124
Commit-Ready: Aaron Durbin <adurbin@chromium.org>
Tested-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
| -rw-r--r-- | host/arch/x86/lib/crossystem_arch.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/host/arch/x86/lib/crossystem_arch.c b/host/arch/x86/lib/crossystem_arch.c index f9ce01f6..d7e89fe1 100644 --- a/host/arch/x86/lib/crossystem_arch.c +++ b/host/arch/x86/lib/crossystem_arch.c @@ -493,6 +493,7 @@ static int FindGpioChipOffsetByLabel(unsigned *gpio_num, unsigned *offset, char filename[128]; char chiplabel[128]; int match = 0; + unsigned controller_offset = 0; dir = opendir(GPIO_BASE_PATH); if (!dir) { @@ -500,16 +501,21 @@ static int FindGpioChipOffsetByLabel(unsigned *gpio_num, unsigned *offset, } while(0 != (ent = readdir(dir))) { - if (1 == sscanf(ent->d_name, "gpiochip%u", offset)) { + if (1 == sscanf(ent->d_name, "gpiochip%u", &controller_offset)) { /* * Read the file at gpiochip<O>/label to get the identifier * for this bank of GPIOs. */ snprintf(filename, sizeof(filename), "%s/gpiochip%u/label", - GPIO_BASE_PATH, *offset); + GPIO_BASE_PATH, controller_offset); if (ReadFileString(chiplabel, sizeof(chiplabel), filename)) { - if (!strncasecmp(chiplabel, name, strlen(name))) + if (!strncasecmp(chiplabel, name, strlen(name))) { + /* + * Store offset when chip label is matched. + */ + *offset = controller_offset; match++; + } } } } @@ -629,6 +635,10 @@ static const struct GpioChipset chipsets_supported[] = { { "PCH-LP", FindGpioChipOffset }, { "INT3437:00", FindGpioChipOffsetByLabel }, { "INT344B:00", FindGpioChipOffsetByLabel }, + { "INT3452:00", FindGpioChipOffsetByLabel }, /* INT3452 are for Apollolake */ + { "INT3452:01", FindGpioChipOffsetByLabel }, + { "INT3452:02", FindGpioChipOffsetByLabel }, + { "INT3452:03", FindGpioChipOffsetByLabel }, { "BayTrail", BayTrailFindGpioChipOffset }, { "Braswell", BraswellFindGpioChipOffset }, { NULL }, |