diff options
| author | Eric Lai <ericr_lai@compal.corp-partner.google.com> | 2020-09-09 16:31:12 +0800 |
|---|---|---|
| committer | Karthik Ramasubramanian <kramasub@google.com> | 2020-09-18 17:44:16 +0000 |
| commit | 0647f614cd36840989ea5fb3559ecb12286704c4 (patch) | |
| tree | 1e057316b1220c3d168f255b424e32e22bdc5978 /src/mainboard/google/octopus/variants/fleex/gpio.c | |
| parent | fc161cbb36013b332822e0cad549388b333f24ec (diff) | |
mb/google/octopus/variants/fleex: support LTE power sequence
GPIOs related to power sequence are
GPIO_67 - EN_PP3300
GPIO_117 - FULL_CARD_POWER_ON_OFF
GPIO_161 - PLT_RST_LTE_L
1. Power on: GPIO_67 -> 0ms -> GPIO_117 -> 30ms -> GPIO_161
2. Power off: GPIO_161 -> 30ms -> GPIO_117 -> 100ms -> GPIO_67
3. Power reset:
- keep GPIO_67 and GPIO_117 high and
- pull down GPIO_161 for 30ms then release it.
BUG=b:168075958
BRANCH=octopus
TEST=build image and verify on the DUT with LTE DB.
Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: I9b56ef8ff346c1d4edd5aad04d4a7396c4702ffc
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45193
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Henry Sun <henrysun@google.com>
Reviewed-by: Ivy Jian <ivy_jian@compal.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/google/octopus/variants/fleex/gpio.c')
| -rw-r--r-- | src/mainboard/google/octopus/variants/fleex/gpio.c | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/src/mainboard/google/octopus/variants/fleex/gpio.c b/src/mainboard/google/octopus/variants/fleex/gpio.c index 4d92630cac..8148dcef2d 100644 --- a/src/mainboard/google/octopus/variants/fleex/gpio.c +++ b/src/mainboard/google/octopus/variants/fleex/gpio.c @@ -10,8 +10,10 @@ static const struct pad_config default_override_table[] = { PAD_NC(GPIO_52, UP_20K), PAD_NC(GPIO_53, UP_20K), - PAD_NC(GPIO_67, UP_20K), - PAD_NC(GPIO_117, UP_20K), + /* UART2-CTS_B -- EN_PP3300_DX_LTE_SOC */ + PAD_CFG_GPO(GPIO_67, 1, PWROK), + /* PCIE_WAKE1_B -- FULL_CARD_POWER_OFF */ + PAD_CFG_GPO(GPIO_117, 1, PWROK), PAD_NC(GPIO_143, UP_20K), PAD_NC(GPIO_144, UP_20K), @@ -21,7 +23,8 @@ static const struct pad_config default_override_table[] = { PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 0, DEEP, NONE, Tx0RxDCRx0, DISPUPD), - PAD_NC(GPIO_161, UP_20K), + /* AVS_I2S1_MCLK -- PLT_RST_LTE_L */ + PAD_CFG_GPO(GPIO_161, 1, DEEP), PAD_NC(GPIO_213, DN_20K), PAD_NC(GPIO_214, DN_20K), @@ -33,3 +36,21 @@ const struct pad_config *variant_override_gpio_table(size_t *num) return default_override_table; } + +static const struct pad_config lte_early_override_table[] = { + /* UART2-CTS_B -- EN_PP3300_DX_LTE_SOC */ + PAD_CFG_GPO(GPIO_67, 1, PWROK), + + /* PCIE_WAKE1_B -- FULL_CARD_POWER_OFF */ + PAD_CFG_GPO(GPIO_117, 1, PWROK), + + /* AVS_I2S1_MCLK -- PLT_RST_LTE_L */ + PAD_CFG_GPO(GPIO_161, 0, DEEP), +}; + +const struct pad_config *variant_early_override_gpio_table(size_t *num) +{ + *num = ARRAY_SIZE(lte_early_override_table); + + return lte_early_override_table; +} |