diff options
author | Arthur Heymans <arthur@aheymans.xyz> | 2019-11-19 18:46:44 +0100 |
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committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2019-11-21 06:41:09 +0000 |
commit | d9802111122d6273c711eccd352d29d7f34ba4e2 (patch) | |
tree | c98f9aff4f07069b4fa72f74dcba48cf06514a70 /src/soc/intel/fsp_baytrail/gpio.c | |
parent | eb5147027e974ba365aa4706935c7c9582cf7619 (diff) |
soc/intel/fsp_baytrail: Drop support
Relocatable ramstage, postcar stage and C_ENVIRONMENT_BOOTBLOCK are
now mandatory features, which this platform lacks.
Change-Id: I0b0344f1ebed12207a77c985f27893a1353c0925
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36982
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Diffstat (limited to 'src/soc/intel/fsp_baytrail/gpio.c')
-rw-r--r-- | src/soc/intel/fsp_baytrail/gpio.c | 372 |
1 files changed, 0 insertions, 372 deletions
diff --git a/src/soc/intel/fsp_baytrail/gpio.c b/src/soc/intel/fsp_baytrail/gpio.c deleted file mode 100644 index 3e2499accd..0000000000 --- a/src/soc/intel/fsp_baytrail/gpio.c +++ /dev/null @@ -1,372 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 Google Inc. - * - * 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 <arch/io.h> -#include <device/mmio.h> -#include <device/pci.h> -#include <console/console.h> -#include <soc/gpio.h> -#include <soc/pmc.h> - -/* - * GPIO-to-Pad LUTs - * - * These tables translate the GPIO number to the pad configuration register - * for that GPIO in the memory-mapped pad configuration registers. - * See the tables: - * PCU iLB GPIO CFIO_SCORE Address Map - * PCU iLB GPIO CFIO_SSUS Address Map - */ -static const u8 gpncore_gpio_to_pad[GPNCORE_COUNT] = - { 19, 18, 17, 20, 21, 22, 24, 25, /* [ 0: 7] */ - 23, 16, 14, 15, 12, 26, 27, 1, /* [ 8:15] */ - 4, 8, 11, 0, 3, 6, 10, 13, /* [16:23] */ - 2, 5, 9 }; /* [24:26] */ - -static const u8 gpscore_gpio_to_pad[GPSCORE_COUNT] = - { 85, 89, 93, 96, 99, 102, 98, 101, /* [ 0: 7] */ - 34, 37, 36, 38, 39, 35, 40, 84, /* [ 8: 15] */ - 62, 61, 64, 59, 54, 56, 60, 55, /* [16: 23] */ - 63, 57, 51, 50, 53, 47, 52, 49, /* [24: 31] */ - 48, 43, 46, 41, 45, 42, 58, 44, /* [32: 39] */ - 95, 105, 70, 68, 67, 66, 69, 71, /* [40: 47] */ - 65, 72, 86, 90, 88, 92, 103, 77, /* [48: 55] */ - 79, 83, 78, 81, 80, 82, 13, 12, /* [56: 63] */ - 15, 14, 17, 18, 19, 16, 2, 1, /* [64: 71] */ - 0, 4, 6, 7, 9, 8, 33, 32, /* [72: 79] */ - 31, 30, 29, 27, 25, 28, 26, 23, /* [80: 87] */ - 21, 20, 24, 22, 5, 3, 10, 11, /* [88: 95] */ - 106, 87, 91, 104, 97, 100 }; /* [96:101] */ - -static const u8 gpssus_gpio_to_pad[GPSSUS_COUNT] = - { 29, 33, 30, 31, 32, 34, 36, 35, /* [ 0: 7] */ - 38, 37, 18, 7, 11, 20, 17, 1, /* [ 8:15] */ - 8, 10, 19, 12, 0, 2, 23, 39, /* [16:23] */ - 28, 27, 22, 21, 24, 25, 26, 51, /* [24:31] */ - 56, 54, 49, 55, 48, 57, 50, 58, /* [32:39] */ - 52, 53, 59, 40 }; /* [40:43] */ - - -/* GPIO bank descriptions */ -static const struct gpio_bank gpncore_bank = { - .gpio_count = GPNCORE_COUNT, - .gpio_to_pad = gpncore_gpio_to_pad, - .legacy_base = GP_LEGACY_BASE_NONE, - .pad_base = GPNCORE_PAD_BASE, - .has_wake_en = 0, - .gpio_f1_range_start = GPNCORE_GPIO_F1_RANGE_START, - .gpio_f1_range_end = GPNCORE_GPIO_F1_RANGE_END, -}; - -static const struct gpio_bank gpscore_bank = { - .gpio_count = GPSCORE_COUNT, - .gpio_to_pad = gpscore_gpio_to_pad, - .legacy_base = GPSCORE_LEGACY_BASE, - .pad_base = GPSCORE_PAD_BASE, - .has_wake_en = 0, - .gpio_f1_range_start = GPSCORE_GPIO_F1_RANGE_START, - .gpio_f1_range_end = GPSCORE_GPIO_F1_RANGE_END, -}; - -static const struct gpio_bank gpssus_bank = { - .gpio_count = GPSSUS_COUNT, - .gpio_to_pad = gpssus_gpio_to_pad, - .legacy_base = GPSSUS_LEGACY_BASE, - .pad_base = GPSSUS_PAD_BASE, - .has_wake_en = 1, - .gpio_f1_range_start = GPSSUS_GPIO_F1_RANGE_START, - .gpio_f1_range_end = GPSSUS_GPIO_F1_RANGE_END, -}; - - -static void setup_gpios(const struct soc_gpio_map *gpios, - const struct gpio_bank *bank) -{ - const struct soc_gpio_map *config; - int gpio = 0; - u32 reg, pad_conf0, *regmmio; - u8 set, bit; - - u32 use_sel[4] = {0}; - u32 io_sel[4] = {0}; - u32 gp_lvl[4] = {0}; - u32 tpe[4] = {0}; - u32 tne[4] = {0}; - u32 wake_en[4] = {0}; - - if (!gpios) - return; - - for (config = gpios; config->pad_conf0 != GPIO_LIST_END; - config++, gpio++) { - if (gpio > bank->gpio_count) - break; - - set = gpio >> 5; - bit = gpio % 32; - - if (bank->legacy_base != GP_LEGACY_BASE_NONE) { - /* Legacy IO configuration */ - use_sel[set] |= config->use_sel << bit; - io_sel[set] |= config->io_sel << bit; - gp_lvl[set] |= config->gp_lvl << bit; - tpe[set] |= config->tpe << bit; - tne[set] |= config->tne << bit; - - /* Some banks do not have wake_en ability */ - if (bank->has_wake_en) - wake_en[set] |= config->wake_en << bit; - } - - /* Pad configuration registers */ - regmmio = (u32 *)(bank->pad_base + 16 * - bank->gpio_to_pad[gpio]); - - /* Add correct func to GPIO pad config */ - pad_conf0 = config->pad_conf0; - if (config->is_gpio) - { - if (gpio >= bank->gpio_f1_range_start && - gpio <= bank->gpio_f1_range_end) - pad_conf0 |= PAD_FUNC1; - else - pad_conf0 |= PAD_FUNC0; - } - -#ifdef GPIO_DEBUG - printk(BIOS_DEBUG, "Write Pad: Base(%p) - %x %x %x\n", - regmmio, pad_conf0, config->pad_conf1, config->pad_val); -#endif - - write32(regmmio + (PAD_CONF0_REG/sizeof(u32)), pad_conf0); - write32(regmmio + (PAD_CONF1_REG/sizeof(u32)), - config->pad_conf1); - write32(regmmio + (PAD_VAL_REG/sizeof(u32)), config->pad_val); - } - - if (bank->legacy_base != GP_LEGACY_BASE_NONE) - for (set = 0; set <= (bank->gpio_count - 1) / 32; ++set) { - reg = bank->legacy_base + 0x20 * set; - -#ifdef GPIO_DEBUG - printk(BIOS_DEBUG, - "Write GPIO: Reg(%x) - %x %x %x %x %x\n", - reg, use_sel[set], io_sel[set], gp_lvl[set], - tpe[set], tne[set]); -#endif - - outl(use_sel[set], reg + LEGACY_USE_SEL_REG); - outl(io_sel[set], reg + LEGACY_IO_SEL_REG); - outl(gp_lvl[set], reg + LEGACY_GP_LVL_REG); - outl(tpe[set], reg + LEGACY_TPE_REG); - outl(tne[set], reg + LEGACY_TNE_REG); - - /* TS registers are WOC */ - outl(0, reg + LEGACY_TS_REG); - - if (bank->has_wake_en) - outl(wake_en[set], reg + LEGACY_WAKE_EN_REG); - } -} - -static void setup_gpio_route(const struct soc_gpio_map *sus, - const struct soc_gpio_map *core) -{ - uint32_t route_reg = 0; - int i; - - /* FIXME: SCI interrupts should be routed regardlessy. */ - if (!CONFIG(HAVE_SMI_HANDLER)) - return; - - for (i = 0; i < 8; i++) { - /* SMI takes precedence and wake_en implies SCI. */ - if (sus[i].smi) { - route_reg |= ROUTE_SMI << (2 * i); - } else if (sus[i].sci) { - route_reg |= ROUTE_SCI << (2 * i); - } - - if (core[i].smi) { - route_reg |= ROUTE_SMI << (2 * (i + 8)); - } else if (core[i].sci) { - route_reg |= ROUTE_SCI << (2 * (i + 8)); - } - } - - smm_southcluster_save_gpio_route(route_reg); -} - -static void setup_dirqs(const u8 dirq[GPIO_MAX_DIRQS], - const struct gpio_bank *bank) -{ - u32 *reg = (u32 *)(bank->pad_base + PAD_BASE_DIRQ_OFFSET); - u32 val; - int i; - - /* Write all four DIRQ registers */ - for (i=0; i<4; ++i) { - val = dirq[i * 4 + 3] << 24 | dirq[i * 4 + 2] << 16 | - dirq[i * 4 + 1] << 8 | dirq[i * 4]; - write32(reg + i, val); -#ifdef GPIO_DEBUG - printk(BIOS_DEBUG, "Write DIRQ reg(%x) - %x\n", - reg + i, val); -#endif - } -} - -void setup_soc_gpios(struct soc_gpio_config *config) -{ - if (config) { - setup_gpios(config->ncore, &gpncore_bank); - setup_gpios(config->score, &gpscore_bank); - setup_gpios(config->ssus, &gpssus_bank); - setup_gpio_route(config->ssus, config->score); - - if (config->core_dirq) - setup_dirqs(*config->core_dirq, &gpscore_bank); - if (config->sus_dirq) - setup_dirqs(*config->sus_dirq, &gpssus_bank); - } - -} - -struct soc_gpio_config* __weak mainboard_get_gpios(void) -{ - printk(BIOS_DEBUG, "Default/empty GPIO config\n"); - return NULL; -} - -/** \brief returns the input / output value from an SCORE GPIO - * - * @param gpio_num The GPIO number being read - * @return The current input or output value of the GPIO - */ -uint8_t read_score_gpio(uint8_t gpio_num) -{ - uint8_t retval = 0; - if (gpio_num < GPSCORE_COUNT) - retval = score_get_gpio(gpscore_gpio_to_pad[gpio_num]); - - return retval; -} - -/** \brief sets an output SCORE GPIO to desired value - * - * @param gpio_num The GPIO number being read - * @param val The value this output must be set to (0 or 1) - * @return void - */ -void write_score_gpio(uint8_t gpio_num, uint8_t val) -{ - if (gpio_num < GPSCORE_COUNT) - score_set_gpio(gpscore_gpio_to_pad[gpio_num], val); -} - -/** \brief returns the input / output value from an SSUS GPIO - * - * @param gpio_num The GPIO number being read - * @return The current input or output value of the GPIO - */ -uint8_t read_ssus_gpio(uint8_t gpio_num) -{ - uint8_t retval = 0; - if (gpio_num < GPSSUS_COUNT) - retval = ssus_get_gpio(gpssus_gpio_to_pad[gpio_num]); - - return retval; -} - -/** \brief sets an output SSUS GPIO to desired value - * - * @param gpio_num The GPIO number being read - * @param val The value this output must be set to (0 or 1) - * @return void - */ -void write_ssus_gpio(uint8_t gpio_num, uint8_t val) -{ - if (gpio_num < GPSSUS_COUNT) - ssus_set_gpio(gpssus_gpio_to_pad[gpio_num], val); -} - -/** \brief Sets up the function, pulls, and Input/Output of a Baytrail - * SSUS (S5) or SCORE (S0) GPIO - * - * @param ssus_gpio 1 if SSUS GPIO is being configured 0 if SCORE GPIO - * @param gpio_num The GPIO number being configured - * @param pconf0 function, pull direction, and pull value - * function: PAD_FUNC0 - PAD_FUNC7 - * pull assign: PAD_PULL_DISABLE / PAD_PULL_UP / PAD_PULL_DOWN - * pull_value: PAD_PU_2K / PAD_PU_10K / PAD_PU_20K / PAD_PU_40K - * @param pad_val input / output state and pad value - * io state: PAD_VAL_INPUT / PAD_VAL_OUTPUT - * pad value: PAD_VAL_HIGH / PAD_VAL_LOW - */ -static void configure_ssus_score_gpio(uint8_t ssus_gpio, uint8_t gpio_num, - uint32_t pconf0, uint32_t pad_val) -{ - uint32_t reg; - uint32_t *pad_addr; - if (ssus_gpio) - pad_addr = ssus_pconf0(gpssus_gpio_to_pad[gpio_num]); - else - pad_addr = score_pconf0(gpscore_gpio_to_pad[gpio_num]); - - if ((ssus_gpio && gpio_num >= GPSSUS_COUNT) || - (gpio_num >= GPSCORE_COUNT)){ - printk(BIOS_WARNING,"Warning: Invalid %s GPIO specified (%d)\n", - ssus_gpio ? "SSUS" : "SCORE", gpio_num); - return; - } - - /* - * Pad Configuration 0 Register - * 2:0 - func_pin_mux - * 8:7 - Pull assignment: 00 - Non pull 01 - Pull Up 10 - Pull down - * 11 - reserved - * 10:9 - Pull strength: 00 - 2K 01 - 10K 10 - 20K 11 - 40K - */ - reg = PAD_CONFIG0_DEFAULT; - reg |= pconf0 & 0x787; - write32(pad_addr + (PAD_CONF0_REG/sizeof(u32)), reg); - - /* - * Pad Value Register - * 0: Pad value - * 1: output enable (0 is enabled) - * 2: input enable (0 is enabled) - */ - reg = read32(pad_addr + (PAD_VAL_REG/sizeof(u32))); - reg &= ~0x7; - reg |= pad_val & 0x7; - write32(pad_addr + (PAD_VAL_REG/sizeof(u32)), reg); -} - -/** \brief Sets up the function, pulls, and Input/Output of a Baytrail S5 GPIO - * - */ -void configure_ssus_gpio(uint8_t gpio_num, uint32_t pconf0, uint32_t pad_val) -{ - configure_ssus_score_gpio(1, gpio_num, pconf0, pad_val); -} - -/** \brief Sets up the function, pulls, and Input/Output of a Baytrail S5 GPIO - * - */ -void configure_score_gpio(uint8_t gpio_num, uint32_t pconf0, uint32_t pad_val) -{ - configure_ssus_score_gpio(0, gpio_num, pconf0, pad_val); -} |