diff options
author | Eric Lai <ericr_lai@compal.corp-partner.google.com> | 2020-09-09 16:31:12 +0800 |
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committer | Karthik Ramasubramanian <kramasub@google.com> | 2020-09-18 17:44:16 +0000 |
commit | 0647f614cd36840989ea5fb3559ecb12286704c4 (patch) | |
tree | 1e057316b1220c3d168f255b424e32e22bdc5978 /src/mainboard/google/octopus/variants/fleex/variant.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/variant.c')
-rw-r--r-- | src/mainboard/google/octopus/variants/fleex/variant.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/mainboard/google/octopus/variants/fleex/variant.c b/src/mainboard/google/octopus/variants/fleex/variant.c new file mode 100644 index 0000000000..c71a63e68b --- /dev/null +++ b/src/mainboard/google/octopus/variants/fleex/variant.c @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <acpi/acpi.h> +#include <ec/google/chromeec/ec.h> +#include <baseboard/variants.h> +#include <delay.h> +#include <gpio.h> + +struct gpio_with_delay { + gpio_t gpio; + unsigned int delay_msecs; +}; + +static void power_off_lte_module(u8 slp_typ) +{ + const struct gpio_with_delay lte_power_off_gpios[] = { + { + GPIO_161, /* AVS_I2S1_MCLK -- PLT_RST_LTE_L */ + 30, + }, + { + GPIO_117, /* PCIE_WAKE1_B -- FULL_CARD_POWER_OFF */ + 100 + }, + { + GPIO_67, /* UART2-CTS_B -- EN_PP3300_DX_LTE_SOC */ + 0 + } + }; + + for (int i = 0; i < ARRAY_SIZE(lte_power_off_gpios); i++) { + gpio_output(lte_power_off_gpios[i].gpio, 0); + mdelay(lte_power_off_gpios[i].delay_msecs); + } +} + +void variant_smi_sleep(u8 slp_typ) +{ + /* Currently use cases here all target to S5 therefore we do early return + * here for saving one transaction to the EC for getting SKU ID. */ + if (slp_typ != ACPI_S5) + return; + + power_off_lte_module(slp_typ); +} |