diff options
Diffstat (limited to 'src/mainboard/google/octopus/variants/bobba/gpio.c')
-rw-r--r-- | src/mainboard/google/octopus/variants/bobba/gpio.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/mainboard/google/octopus/variants/bobba/gpio.c b/src/mainboard/google/octopus/variants/bobba/gpio.c new file mode 100644 index 0000000000..4fe5434c72 --- /dev/null +++ b/src/mainboard/google/octopus/variants/bobba/gpio.c @@ -0,0 +1,95 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2018 Google LLC. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the + * GNU General Public License for more details. + */ + +#include <baseboard/gpio.h> +#include <baseboard/variants.h> +#include <boardid.h> +#include <gpio.h> +#include <soc/gpio.h> + +static const struct pad_config default_override_table[] = { + PAD_NC(GPIO_104, UP_20K), + + /* CAM_SOC_EC_SYNC */ + PAD_CFG_GPI_APIC_IOS(GPIO_134, NONE, DEEP, EDGE_SINGLE, INVERT, TxDRxE, + DISPUPD), + + /* EN_PP3300_TOUCHSCREEN */ + PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 0, DEEP, NONE, Tx0RxDCRx0, + DISPUPD), + + /* EN_PP3300_WLAN_L */ + PAD_CFG_GPO(GPIO_178, 0, DEEP), +}; + +const struct pad_config *variant_override_gpio_table(size_t *num) +{ + const struct pad_config *c = NULL; + switch (board_id()) { + case 0: + case UNDEFINED_STRAPPING_ID: + *num = 0; + break; + default: + c = default_override_table; + *num = ARRAY_SIZE(default_override_table); + } + return c; +} + +/* GPIOs needed prior to ramstage. */ +static const struct pad_config early_gpio_table[] = { + /* PCH_WP_OD */ + PAD_CFG_GPI(GPIO_190, NONE, DEEP), + /* H1_PCH_INT_ODL */ + PAD_CFG_GPI_APIC_IOS(GPIO_63, NONE, DEEP, EDGE_SINGLE, INVERT, TxDRxE, + DISPUPD), + /* H1_SLAVE_SPI_CLK_R */ + PAD_CFG_NF(GPIO_79, NONE, DEEP, NF1), + /* H1_SLAVE_SPI_CS_L_R */ + PAD_CFG_NF(GPIO_80, NONE, DEEP, NF1), + /* H1_SLAVE_SPI_MISO */ + PAD_CFG_NF(GPIO_82, NONE, DEEP, NF1), + /* H1_SLAVE_SPI_MOSI_R */ + PAD_CFG_NF(GPIO_83, NONE, DEEP, NF1), + + /* WLAN_PE_RST */ + PAD_CFG_GPO(GPIO_164, 0, DEEP), + + /* + * ESPI_IO1 acts as ALERT# (which is open-drain) and requies a weak + * pull-up for proper operation. Since there is no external pull present + * on this platform, configure an internal weak pull-up. + */ + PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_151, UP_20K, DEEP, NF2, HIZCRx1, + ENPU), +}; + +const struct pad_config *variant_early_gpio_table(size_t *num) +{ + /* + * This is a hack to configure EN_PP3300_WLAN based on board id. Once + * board id 0 is deprecated, we can get rid of this. + */ + uint32_t bid = board_id(); + + if (bid == UNDEFINED_STRAPPING_ID || bid < 1) + gpio_output(GPIO_178, 1); + else + gpio_output(GPIO_178, 0); + + *num = ARRAY_SIZE(early_gpio_table); + return early_gpio_table; +} |