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fsp_baytrail: Add functions to set a GPIO

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Add two functions to set a memory mapped GPIO to a given value.

TEST=Booted siemens/mc_tcu3 board and confirmed GPIO-value after
     using this functions.

Change-Id: Idc14c5d4049487e60040cc294ba0cea363d998a6
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: http://review.coreboot.org/12341
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Werner Zeh
2015-11-06 08:38:38 +01:00
committed by Martin Roth
parent e619a9ac9b
commit 1e8a3015e9
2 changed files with 42 additions and 0 deletions
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24
src/soc/intel/fsp_baytrail/gpio.c
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@@ -266,6 +266,18 @@ uint8_t read_score_gpio(uint8_t gpio_num)
return retval;
}
/** \brief sets an output SCORE GPIO to desired value
*
* @param gpio_num The GPIO number being read
* @param val The value this output must be set to (0 or 1)
* @return void
*/
void write_score_gpio(uint8_t gpio_num, uint8_t val)
{
if (gpio_num < GPSCORE_COUNT)
score_set_gpio(gpscore_gpio_to_pad[gpio_num], val);
}
/** \brief returns the input / output value from an SSUS GPIO
*
* @param gpio_num The GPIO number being read
@@ -280,6 +292,18 @@ uint8_t read_ssus_gpio(uint8_t gpio_num)
return retval;
}
/** \brief sets an output SSUS GPIO to desired value
*
* @param gpio_num The GPIO number being read
* @param val The value this output must be set to (0 or 1)
* @return void
*/
void write_ssus_gpio(uint8_t gpio_num, uint8_t val)
{
if (gpio_num < GPSSUS_COUNT)
ssus_set_gpio(gpssus_gpio_to_pad[gpio_num], val);
}
/** \brief Sets up the function, pulls, and Input/Output of a Baytrail
* SSUS (S5) or SCORE (S0) GPIO
*