diff options
| author | Vaibhav Shankar <vaibhav.shankar@intel.com> | 2016-08-29 14:03:38 -0700 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-09-09 23:51:01 +0200 |
| commit | e6a5f608e197b9b31eb30b84bf3359123c1e58ac (patch) | |
| tree | 8e8ca527f33d874d4b21da7b95cd4ff9eb103ace /src/soc/intel/apollolake/gpio.c | |
| parent | 6e4204a0d196615ebb19d6f03f2eff2307bd6380 (diff) | |
| download | coreboot-e6a5f608e197b9b31eb30b84bf3359123c1e58ac.tar.xz | |
soc/intel/apollolake: Add functions to calculate GPIO address
Provide iosf and GPIO functions for GPIO address
calculation.
BUG=chrome-os-partner:55877
Change-Id: I6eaa1fcecf5970b365e3418541c75b9866959f7e
Signed-off-by: Vaibhav Shankar <vaibhav.shankar@intel.com>
Reviewed-on: https://review.coreboot.org/16349
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc/intel/apollolake/gpio.c')
| -rw-r--r-- | src/soc/intel/apollolake/gpio.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/gpio.c b/src/soc/intel/apollolake/gpio.c index e56f147b5a..4731d56f85 100644 --- a/src/soc/intel/apollolake/gpio.c +++ b/src/soc/intel/apollolake/gpio.c @@ -177,6 +177,16 @@ void gpio_configure_pads(const struct pad_config *cfg, size_t num_pads) gpio_configure_pad(cfg + i); } +void * gpio_dwx_address(const uint16_t pad) +{ + /* Calculate Address of DW0 register for given GPIO + * pad - GPIO number + * returns - address of GPIO + */ + const struct pad_community *comm = gpio_get_community(pad); + return iosf_address(comm->port, PAD_CFG_OFFSET(pad - comm->first_pad)); +} + void gpio_input_pulldown(gpio_t gpio) { struct pad_config cfg = PAD_CFG_GPI(gpio, DN_20K, DEEP); |