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mb/google/skyrim: Allow variants to override romstage GPIO table

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Switch from gpio_configure_pads() to gpio_configure_pads_with_override()
so variants can override romstage GPIO defaults. Rename baseboard
function and add an weak empty override function to be used by variants.
Will be used for touchscreen power sequencing in a follow-on commit.

Change-Id: I45586237919cd07a171beac57f3510e26338f67f
Signed-off-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67811
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
This commit is contained in:
Matt DeVillier 2022-09-23 14:51:12 -05:00 committed by Felix Held
parent ffa79073d3
commit 5f69b867f0
3 changed files with 17 additions and 8 deletions
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12
src/mainboard/google/skyrim/romstage.c
View File

@ -5,11 +5,11 @@
void mb_pre_fspm(FSP_M_CONFIG *mcfg)
{
size_t base_num_gpios;
const struct soc_amd_gpio *base_gpios;
size_t num_base_gpios, num_override_gpios;
const struct soc_amd_gpio *base_gpios, *override_gpios;
/* Initialize PCIe reset. */
variant_romstage_gpio_table(&base_gpios, &base_num_gpios);
gpio_configure_pads(base_gpios, base_num_gpios);
baseboard_romstage_gpio_table(&base_gpios, &num_base_gpios);
variant_romstage_override_gpio_table(&override_gpios, &num_override_gpios);
gpio_configure_pads_with_override(base_gpios, num_base_gpios,
override_gpios, num_override_gpios);
}

8
src/mainboard/google/skyrim/variants/baseboard/gpio.c
View File

@ -202,12 +202,18 @@ static const struct soc_amd_gpio romstage_gpio_table[] = {
PAD_GPO(GPIO_6, HIGH),
};
__weak void variant_romstage_gpio_table(const struct soc_amd_gpio **gpio, size_t *size)
void baseboard_romstage_gpio_table(const struct soc_amd_gpio **gpio, size_t *size)
{
*size = ARRAY_SIZE(romstage_gpio_table);
*gpio = romstage_gpio_table;
}
__weak void variant_romstage_override_gpio_table(const struct soc_amd_gpio **gpio, size_t *size)
{
*size = 0;
*gpio = NULL;
}
void baseboard_gpio_table(const struct soc_amd_gpio **gpio, size_t *size)
{
*size = ARRAY_SIZE(base_gpio_table);

5
src/mainboard/google/skyrim/variants/baseboard/include/baseboard/variants.h
View File

@ -39,6 +39,9 @@ void variant_espi_gpio_table(const struct soc_amd_gpio **gpio, size_t *size);
void variant_tpm_gpio_table(const struct soc_amd_gpio **gpio, size_t *size);
/* This function provides GPIO settings in romstage. */
void variant_romstage_gpio_table(const struct soc_amd_gpio **gpio, size_t *size);
void baseboard_romstage_gpio_table(const struct soc_amd_gpio **gpio, size_t *size);
/* This function allows variant to override any GPIO init in romstage. */
void variant_romstage_override_gpio_table(const struct soc_amd_gpio **gpio, size_t *size);
#endif /* __BASEBOARD_VARIANTS_H__ */