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mb/google/mancomb: Configure early GPIOs in earliest stage

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Configure early GPIOs in verstage if it is run in PSP otherwise
configure them in bootblock.

BUG=b:182211161
TEST=builds

Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: Ic1faeea59462319c1652c69034b4dde01669e13b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51493
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Mathew King <mathewk@chromium.org>
This commit is contained in:
Eric Lai 2021-03-15 15:52:03 +08:00 committed by Patrick Georgi
parent a906918ae0
commit d807c806b3
5 changed files with 28 additions and 10 deletions
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5
src/mainboard/google/mancomb/bootblock.c
View file

@ -7,6 +7,9 @@ void bootblock_mainboard_early_init(void)
{ {
size_t num_gpios; size_t num_gpios;
const struct soc_amd_gpio *gpios; const struct soc_amd_gpio *gpios;
gpios = variant_bootblock_gpio_table(&num_gpios);
if (!CONFIG(VBOOT_STARTS_BEFORE_BOOTBLOCK)) {
gpios = variant_early_gpio_table(&num_gpios);
program_gpios(gpios, num_gpios); program_gpios(gpios, num_gpios);
} }
}

2
src/mainboard/google/mancomb/variants/baseboard/Makefile.inc
View file

@ -1,3 +1,5 @@
bootblock-y += gpio.c bootblock-y += gpio.c
ramstage-y += gpio.c ramstage-y += gpio.c
verstage-y += gpio.c

12
src/mainboard/google/mancomb/variants/baseboard/gpio.c
View file

@ -163,9 +163,9 @@ static const struct soc_amd_gpio base_gpio_table[] = {
PAD_NF(GPIO_148, I2C1_SDA, PULL_NONE), PAD_NF(GPIO_148, I2C1_SDA, PULL_NONE),
}; };
/* Early GPIO configuration in bootblock */ /* Early GPIO configuration */
static const struct soc_amd_gpio bootblock_gpio_table[] = { static const struct soc_amd_gpio early_gpio_table[] = {
/* TODO: Fill bootblock gpio configuration */ /* TODO: Fill early gpio configuration */
}; };
const struct soc_amd_gpio *__weak variant_base_gpio_table(size_t *size) const struct soc_amd_gpio *__weak variant_base_gpio_table(size_t *size)
@ -179,8 +179,8 @@ const struct soc_amd_gpio *__weak variant_override_gpio_table(size_t *size)
return NULL; return NULL;
} }
const struct soc_amd_gpio *__weak variant_bootblock_gpio_table(size_t *size) const struct soc_amd_gpio *__weak variant_early_gpio_table(size_t *size)
{ {
*size = ARRAY_SIZE(bootblock_gpio_table); *size = ARRAY_SIZE(early_gpio_table);
return bootblock_gpio_table; return early_gpio_table;
} }

4
src/mainboard/google/mancomb/variants/baseboard/include/baseboard/variants.h
View file

@ -18,7 +18,7 @@ const struct soc_amd_gpio *variant_base_gpio_table(size_t *size);
*/ */
const struct soc_amd_gpio *variant_override_gpio_table(size_t *size); const struct soc_amd_gpio *variant_override_gpio_table(size_t *size);
/* This function provides GPIO init in bootblock. */ /* This function provides early GPIO init in bootblock or psp. */
const struct soc_amd_gpio *variant_bootblock_gpio_table(size_t *size); const struct soc_amd_gpio *variant_early_gpio_table(size_t *size);
#endif /* __BASEBOARD_VARIANTS_H__ */ #endif /* __BASEBOARD_VARIANTS_H__ */

13
src/mainboard/google/mancomb/verstage.c
View file

@ -1,9 +1,22 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */ /* SPDX-License-Identifier: GPL-2.0-or-later */
#include <amdblocks/gpio_banks.h>
#include <baseboard/variants.h>
#include <security/vboot/vboot_common.h> #include <security/vboot/vboot_common.h>
static void setup_gpio(void)
{
const struct soc_amd_gpio *gpios;
size_t num_gpios;
if (CONFIG(VBOOT_STARTS_BEFORE_BOOTBLOCK)) {
gpios = variant_early_gpio_table(&num_gpios);
program_gpios(gpios, num_gpios);
}
}
void verstage_mainboard_early_init(void) void verstage_mainboard_early_init(void)
{ {
setup_gpio();
} }
void verstage_mainboard_init(void) void verstage_mainboard_init(void)