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mb/google/octopus/variants/bobba: support LTE power sequence 

GPIOs related to power sequnce 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:144327240
BRANCH=octopus
TEST=build image and verify on the DUT with LTE DB.

Change-Id: I68b71425391eda1e92806fecdb9c8dcd54f0b95a
Signed-off-by: Pan Sheng-Liang <sheng-liang.pan@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36771
Reviewed-by: Justin TerAvest <teravest@chromium.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Henry Sun <henrysun@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Sheng-Liang Pan 2019-11-12 17:16:51 +08:00 committed by Patrick Georgi
parent 0a8e8e84f1
commit 92fe375737
2 changed files with 117 additions and 2 deletions
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59
src/mainboard/google/octopus/variants/bobba/gpio.c
View File

@ -19,6 +19,13 @@
#include <gpio.h>
#include <soc/gpio.h>
enum {
SKU_37_DROID = 37, /* LTE */
SKU_38_DROID = 38, /* LTE + Touch */
SKU_39_DROID = 39, /* LTE + KB backlight*/
SKU_40_DROID = 40, /* LTE + Touch + KB backlight*/
};
static const struct pad_config default_override_table[] = {
PAD_NC(GPIO_104, UP_20K),
@ -29,9 +36,59 @@ static const struct pad_config default_override_table[] = {
PAD_NC(GPIO_213, DN_20K),
};
static const struct pad_config lte_override_table[] = {
/* Default override table. */
PAD_NC(GPIO_104, UP_20K),
/* EN_PP3300_TOUCHSCREEN */
PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 0, DEEP, NONE, Tx0RxDCRx0,
DISPUPD),
PAD_NC(GPIO_213, DN_20K),
/* Be specific to LTE SKU */
/* 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, 1, DEEP),
};
const struct pad_config *variant_override_gpio_table(size_t *num)
{
*num = ARRAY_SIZE(default_override_table);
uint32_t sku_id;
sku_id = get_board_sku();
switch (sku_id) {
case SKU_37_DROID:
case SKU_38_DROID:
case SKU_39_DROID:
case SKU_40_DROID:
*num = ARRAY_SIZE(lte_override_table);
return lte_override_table;
default:
*num = ARRAY_SIZE(default_override_table);
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;
}

58
src/mainboard/google/octopus/variants/bobba/variant.c
View File

@ -13,8 +13,47 @@
* GNU General Public License for more details.
*/
#include <arch/acpi.h>
#include <boardid.h>
#include <sar.h>
#include <baseboard/variants.h>
#include <delay.h>
#include <gpio.h>
enum {
SKU_37_DROID = 37, /* LTE */
SKU_38_DROID = 38, /* LTE + Touch */
SKU_39_DROID = 39, /* LTE + KB backlight*/
SKU_40_DROID = 40, /* LTE + Touch + KB backlight*/
};
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);
}
}
const char *get_wifi_sar_cbfs_filename(void)
{
@ -27,3 +66,22 @@ const char *get_wifi_sar_cbfs_filename(void)
return filename;
}
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;
switch (get_board_sku()) {
case SKU_37_DROID:
case SKU_38_DROID:
case SKU_39_DROID:
case SKU_40_DROID:
power_off_lte_module(slp_typ);
return;
default:
return;
}
}