diff options
| author | Wisley Chen <wisley.chen@quanta.corp-partner.google.com> | 2021-12-29 11:38:57 +0600 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-01-07 15:26:51 +0000 |
| commit | 328bfb39373357114166e65f84e96a726afceb45 (patch) | |
| tree | b958625e6106ad6b6b1abc165f3afb3a4853409e /src/mainboard/google/brya/variants/anahera4es | |
| parent | 0de3e6570e5facde42056fe36694d5e7804b2969 (diff) | |
mb/google/brya/anahera{4es}: Correct WWAN power sequence
Correct the WWAN power sequence to meet spec
BUG=b:213021172
TEST=build
Signed-off-by: Wisley Chen <wisley.chen@quanta.corp-partner.google.com>
Change-Id: Iab221fd03c637c82f6ce5c8278d432decf1b30c6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60435
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'src/mainboard/google/brya/variants/anahera4es')
| -rw-r--r-- | src/mainboard/google/brya/variants/anahera4es/gpio.c | 14 | ||||
| -rw-r--r-- | src/mainboard/google/brya/variants/anahera4es/include/variant/gpio.h | 6 |
2 files changed, 19 insertions, 1 deletions
diff --git a/src/mainboard/google/brya/variants/anahera4es/gpio.c b/src/mainboard/google/brya/variants/anahera4es/gpio.c index caf23c21fc..40dd56fd37 100644 --- a/src/mainboard/google/brya/variants/anahera4es/gpio.c +++ b/src/mainboard/google/brya/variants/anahera4es/gpio.c @@ -57,6 +57,8 @@ static const struct pad_config override_gpio_table[] = { PAD_NC(GPP_E3, NONE), /* E7 : PROC_GP1 ==> NC */ PAD_NC(GPP_E7, NONE), + /* E16 : RSVD_TP ==> WWAN_RST_L */ + PAD_CFG_GPO(GPP_E16, 1, DEEP), /* F19 : SRCCLKREQ6# ==> EMMC_CLKREQ_ODL */ PAD_CFG_NF(GPP_F19, NONE, DEEP, NF1), @@ -90,11 +92,17 @@ static const struct pad_config override_gpio_table[] = { PAD_NC(GPP_S6, NONE), /* S7 : SNDW3_DATA ==> NC */ PAD_NC(GPP_S7, NONE), - + /* + * E0 : SATAXPCIE0 ==> WWAN_PERST_L + * Drive high here, so that PERST_L is sequenced after RST_L + */ + PAD_CFG_GPO(GPP_E0, 1, DEEP), }; /* 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 */ @@ -124,6 +132,8 @@ static const struct pad_config early_gpio_table[] = { PAD_CFG_GPO(GPP_E16, 0, DEEP), /* F18 : THC1_SPI2_INT# ==> EC_IN_RW_OD */ PAD_CFG_GPI(GPP_F18, NONE, DEEP), + /* F21 : EXT_PWR_GATE2# ==> WWAN_FCPO_L (updated in romstage) */ + PAD_CFG_GPO(GPP_F21, 0, DEEP), /* H10 : UART0_RXD ==> UART_PCH_RX_DBG_TX */ PAD_CFG_NF(GPP_H10, NONE, DEEP, NF2), /* H11 : UART0_TXD ==> UART_PCH_TX_DBG_RX */ @@ -143,6 +153,8 @@ static const struct pad_config early_gpio_table[] = { static const struct pad_config romstage_gpio_table[] = { /* B4 : PROC_GP3 ==> SSD_PERST_L */ PAD_CFG_GPO(GPP_B4, 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) diff --git a/src/mainboard/google/brya/variants/anahera4es/include/variant/gpio.h b/src/mainboard/google/brya/variants/anahera4es/include/variant/gpio.h index c4fe342621..99d09b2432 100644 --- a/src/mainboard/google/brya/variants/anahera4es/include/variant/gpio.h +++ b/src/mainboard/google/brya/variants/anahera4es/include/variant/gpio.h @@ -5,4 +5,10 @@ #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 |