From 0a144fa583b270d7b96a3b96599567d52336c958 Mon Sep 17 00:00:00 2001 From: Furquan Shaikh Date: Wed, 25 Jul 2018 15:04:56 -0700 Subject: mb/google/octopus/variants/phaser: Provide override GPIO config This change provides override GPIO table for variant phaser depending upon the board id. Additionally, early_gpio_table is also provided for phaser since EN_PP3300_WLAN needs to be handled differently based on board id. BUG=b:111743717 TEST=Verified that GPIO configuration for the override GPIOs is different than before with this change. Change-Id: I4d2e829e1b886299442c17cecc069854b742b43c Signed-off-by: Furquan Shaikh Reviewed-on: https://review.coreboot.org/27642 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin --- .../google/octopus/variants/phaser/Makefile.inc | 3 + .../google/octopus/variants/phaser/gpio.c | 113 +++++++++++++++++++++ 2 files changed, 116 insertions(+) create mode 100644 src/mainboard/google/octopus/variants/phaser/gpio.c (limited to 'src/mainboard') diff --git a/src/mainboard/google/octopus/variants/phaser/Makefile.inc b/src/mainboard/google/octopus/variants/phaser/Makefile.inc index 1644083954..d54ed40095 100644 --- a/src/mainboard/google/octopus/variants/phaser/Makefile.inc +++ b/src/mainboard/google/octopus/variants/phaser/Makefile.inc @@ -1 +1,4 @@ +bootblock-y += gpio.c + ramstage-y += variant.c +ramstage-y += gpio.c diff --git a/src/mainboard/google/octopus/variants/phaser/gpio.c b/src/mainboard/google/octopus/variants/phaser/gpio.c new file mode 100644 index 0000000000..11935d97ff --- /dev/null +++ b/src/mainboard/google/octopus/variants/phaser/gpio.c @@ -0,0 +1,113 @@ +/* + * 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 +#include +#include +#include +#include + +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), + PAD_NC(GPIO_143, UP_20K), + + /* EN_PP3300_TOUCHSCREEN */ + PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 0, DEEP, NONE, Tx0RxDCRx0, + DISPUPD), + + PAD_NC(GPIO_161, DN_20K), + + /* EN_PP3300_WLAN_L */ + PAD_CFG_GPO(GPIO_178, 0, DEEP), + + PAD_NC(GPIO_213, DN_20K), + PAD_NC(GPIO_214, DN_20K), +}; + +static const struct pad_config bid0_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), + PAD_NC(GPIO_143, UP_20K), + PAD_NC(GPIO_161, DN_20K), + PAD_NC(GPIO_214, DN_20K), +}; + +const struct pad_config *variant_override_gpio_table(size_t *num) +{ + const struct pad_config *c; + + switch (board_id()) { + case 0: + case UNDEFINED_STRAPPING_ID: + c = bid0_override_table; + *num = ARRAY_SIZE(bid0_override_table); + 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; +} -- cgit v1.2.3