diff options
| author | Ariel Fang <ariel_fang@wistron.corp-partner.google.com> | 2021-10-14 14:25:42 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2021-10-16 01:04:19 +0000 |
| commit | e9fcc976971fc5805dd27e4b0568b8ec9fc057a1 (patch) | |
| tree | 9366e67a589762cfab35d72efbe60be4ef7cc62f /src/mainboard/google/brya/variants | |
| parent | 4afdd693fa0ea2bf49ce37eccca74796499004e6 (diff) | |
mb/google/brya/variants/primus: To fine tune WWAN power sequencing
Follow the spec to correct the WWAN poweron and powerdown sequences.
BUG=b:195625346
TEST=USE="project_primus emerge-brya coreboot" and verify it builds
without error.
Signed-off-by: Ariel Fang <ariel_fang@wistron.corp-partner.google.com>
Change-Id: I232d283a9d6093f5da64fcdce44e5cb640e3df0e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58319
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google/brya/variants')
3 files changed, 25 insertions, 3 deletions
diff --git a/src/mainboard/google/brya/variants/primus/Makefile.inc b/src/mainboard/google/brya/variants/primus/Makefile.inc index 716c7ad5df..129a2938e3 100644 --- a/src/mainboard/google/brya/variants/primus/Makefile.inc +++ b/src/mainboard/google/brya/variants/primus/Makefile.inc @@ -1,5 +1,5 @@ # SPDX-License-Identifier: GPL-2.0-only bootblock-y += gpio.c - +romstage-y += gpio.c ramstage-y += gpio.c ramstage-$(CONFIG_FW_CONFIG) += fw_config.c diff --git a/src/mainboard/google/brya/variants/primus/gpio.c b/src/mainboard/google/brya/variants/primus/gpio.c index 714494923f..ba423fc73c 100644 --- a/src/mainboard/google/brya/variants/primus/gpio.c +++ b/src/mainboard/google/brya/variants/primus/gpio.c @@ -77,6 +77,8 @@ static const struct pad_config override_gpio_table[] = { /* Early pad configuration in bootblock */ static const struct pad_config early_gpio_table[] = { + /* A12 : SATAXPCIE1 ==> EN_PPVAR_WWAN */ + PAD_CFG_GPO(GPP_A12, 1, DEEP), /* A13 : PMC_I2C_SCL ==> GSC_PCH_INT_ODL */ PAD_CFG_GPI_APIC(GPP_A13, NONE, PLTRST, LEVEL, INVERT), /* B7 : ISH_12C1_SDA ==> PCH_I2C_TPM_SDA */ @@ -98,14 +100,16 @@ static const struct pad_config early_gpio_table[] = { PAD_CFG_GPO(GPP_D11, 1, DEEP), /* D18 : UART1_TXD ==> SD_PE_RST_L */ PAD_CFG_GPO(GPP_D18, 0, PLTRST), - /* E0 : SATAXPCIE0 ==> WWAN_PERST_L */ + /* E0 : SATAXPCIE0 ==> WWAN_PERST_L (updated in ramstage)*/ PAD_CFG_GPO(GPP_E0, 0, DEEP), /* E13 : THC0_SPI1_IO2 ==> MEM_CH_SEL */ PAD_CFG_GPI(GPP_E13, NONE, DEEP), - /* E16 : RSVD_TP ==> WWAN_RST_L */ + /* E16 : RSVD_TP ==> WWAN_RST_L (updated in ramstage)*/ PAD_CFG_GPO(GPP_E16, 0, DEEP), /* E15 : RSVD_TP ==> PCH_WP_OD */ PAD_CFG_GPI_GPIO_DRIVER(GPP_E15, NONE, DEEP), + /* F21 : EXT_PWR_GATE2# ==> WWAN_FCPO_L (updated in romstage) */ + PAD_CFG_GPO(GPP_F21, 0, DEEP), /* F18 : THC1_SPI2_INT# ==> EC_IN_RW_OD */ PAD_CFG_GPI(GPP_F18, NONE, DEEP), /* H10 : UART0_RXD ==> UART_PCH_RX_DBG_TX */ @@ -121,6 +125,13 @@ static const struct pad_config early_gpio_table[] = { PAD_CFG_GPO(GPP_B4, 1, DEEP), }; +static const struct pad_config romstage_gpio_table[] = { + /* A12 : SATAXPCIE1 ==> EN_PPVAR_WWAN (set here for correct power sequencing) */ + PAD_CFG_GPO(GPP_A12, 1, DEEP), + /* F21 : EXT_PWR_GATE2# ==> WWAN_FCPO_L (set here for correct power sequencing) */ + PAD_CFG_GPO(GPP_F21, 1, DEEP), +}; + const struct pad_config *variant_gpio_override_table(size_t *num) { *num = ARRAY_SIZE(override_gpio_table); @@ -132,3 +143,9 @@ const struct pad_config *variant_early_gpio_table(size_t *num) *num = ARRAY_SIZE(early_gpio_table); return early_gpio_table; } + +const struct pad_config *variant_romstage_gpio_table(size_t *num) +{ + *num = ARRAY_SIZE(romstage_gpio_table); + return romstage_gpio_table; +} diff --git a/src/mainboard/google/brya/variants/primus/include/variant/gpio.h b/src/mainboard/google/brya/variants/primus/include/variant/gpio.h index c4fe342621..cbf6040265 100644 --- a/src/mainboard/google/brya/variants/primus/include/variant/gpio.h +++ b/src/mainboard/google/brya/variants/primus/include/variant/gpio.h @@ -4,5 +4,10 @@ #define VARIANT_GPIO_H #include <baseboard/gpio.h> +#define WWAN_FCPO GPP_F21 +#define WWAN_RST GPP_E16 +#define WWAN_PERST GPP_E0 +#define T1_OFF_MS 16 +#define T2_OFF_MS 2 #endif |