307 lines
8.8 KiB
C
307 lines
8.8 KiB
C
/*
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* APE6EVM board support
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*
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* Copyright (C) 2013 Renesas Solutions Corp.
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* Copyright (C) 2013 Magnus Damm
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/gpio.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/interrupt.h>
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#include <linux/irqchip.h>
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#include <linux/irqchip/arm-gic.h>
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#include <linux/kernel.h>
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#include <linux/mfd/tmio.h>
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#include <linux/mmc/host.h>
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#include <linux/mmc/sh_mmcif.h>
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#include <linux/mmc/sh_mobile_sdhi.h>
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#include <linux/pinctrl/machine.h>
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#include <linux/platform_device.h>
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#include <linux/regulator/fixed.h>
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#include <linux/regulator/machine.h>
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#include <linux/sh_clk.h>
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#include <linux/smsc911x.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include "common.h"
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#include "irqs.h"
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#include "r8a73a4.h"
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/* LEDS */
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static struct gpio_led ape6evm_leds[] = {
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{
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.name = "gnss-en",
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.gpio = 28,
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.default_state = LEDS_GPIO_DEFSTATE_OFF,
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}, {
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.name = "nfc-nrst",
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.gpio = 126,
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.default_state = LEDS_GPIO_DEFSTATE_OFF,
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}, {
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.name = "gnss-nrst",
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.gpio = 132,
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.default_state = LEDS_GPIO_DEFSTATE_OFF,
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}, {
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.name = "bt-wakeup",
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.gpio = 232,
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.default_state = LEDS_GPIO_DEFSTATE_OFF,
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}, {
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.name = "strobe",
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.gpio = 250,
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.default_state = LEDS_GPIO_DEFSTATE_OFF,
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}, {
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.name = "bbresetout",
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.gpio = 288,
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.default_state = LEDS_GPIO_DEFSTATE_OFF,
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},
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};
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static __initdata struct gpio_led_platform_data ape6evm_leds_pdata = {
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.leds = ape6evm_leds,
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.num_leds = ARRAY_SIZE(ape6evm_leds),
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};
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/* GPIO KEY */
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#define GPIO_KEY(c, g, d, ...) \
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{ .code = c, .gpio = g, .desc = d, .active_low = 1 }
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static struct gpio_keys_button gpio_buttons[] = {
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GPIO_KEY(KEY_0, 324, "S16"),
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GPIO_KEY(KEY_MENU, 325, "S17"),
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GPIO_KEY(KEY_HOME, 326, "S18"),
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GPIO_KEY(KEY_BACK, 327, "S19"),
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GPIO_KEY(KEY_VOLUMEUP, 328, "S20"),
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GPIO_KEY(KEY_VOLUMEDOWN, 329, "S21"),
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};
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static struct gpio_keys_platform_data ape6evm_keys_pdata __initdata = {
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.buttons = gpio_buttons,
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.nbuttons = ARRAY_SIZE(gpio_buttons),
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};
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/* Dummy supplies, where voltage doesn't matter */
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static struct regulator_consumer_supply dummy_supplies[] = {
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REGULATOR_SUPPLY("vddvario", "smsc911x"),
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REGULATOR_SUPPLY("vdd33a", "smsc911x"),
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};
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/* SMSC LAN9220 */
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static const struct resource lan9220_res[] __initconst = {
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DEFINE_RES_MEM(0x08000000, 0x1000),
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{
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.start = irq_pin(40), /* IRQ40 */
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.flags = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
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},
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};
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static const struct smsc911x_platform_config lan9220_data __initconst = {
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.flags = SMSC911X_USE_32BIT,
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.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
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.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
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};
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/*
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* MMC0 power supplies:
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* Both Vcc and VccQ to eMMC on APE6EVM are supplied by a tps80032 voltage
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* regulator. Until support for it is added to this file we simulate the
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* Vcc supply by a fixed always-on regulator
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*/
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static struct regulator_consumer_supply vcc_mmc0_consumers[] =
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{
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REGULATOR_SUPPLY("vmmc", "sh_mmcif.0"),
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};
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/*
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* SDHI0 power supplies:
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* Vcc to SDHI0 on APE6EVM is supplied by a GPIO-switchable regulator. VccQ is
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* provided by the same tps80032 regulator as both MMC0 voltages - see comment
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* above
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*/
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static struct regulator_consumer_supply vcc_sdhi0_consumers[] =
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{
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REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"),
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};
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static struct regulator_init_data vcc_sdhi0_init_data = {
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.constraints = {
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.valid_ops_mask = REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = ARRAY_SIZE(vcc_sdhi0_consumers),
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.consumer_supplies = vcc_sdhi0_consumers,
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};
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static const struct fixed_voltage_config vcc_sdhi0_info __initconst = {
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.supply_name = "SDHI0 Vcc",
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.microvolts = 3300000,
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.gpio = 76,
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.enable_high = 1,
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.init_data = &vcc_sdhi0_init_data,
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};
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/*
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* SDHI1 power supplies:
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* Vcc and VccQ to SDHI1 on APE6EVM are both fixed at 3.3V
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*/
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static struct regulator_consumer_supply vcc_sdhi1_consumers[] =
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{
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REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.1"),
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};
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/* MMCIF */
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static const struct sh_mmcif_plat_data mmcif0_pdata __initconst = {
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.caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
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.slave_id_tx = SHDMA_SLAVE_MMCIF0_TX,
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.slave_id_rx = SHDMA_SLAVE_MMCIF0_RX,
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.ccs_unsupported = true,
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};
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static const struct resource mmcif0_resources[] __initconst = {
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DEFINE_RES_MEM(0xee200000, 0x100),
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DEFINE_RES_IRQ(gic_spi(169)),
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};
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/* SDHI0 */
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static const struct sh_mobile_sdhi_info sdhi0_pdata __initconst = {
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.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE,
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.tmio_caps = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ,
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};
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static const struct resource sdhi0_resources[] __initconst = {
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DEFINE_RES_MEM(0xee100000, 0x100),
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DEFINE_RES_IRQ(gic_spi(165)),
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};
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/* SDHI1 */
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static const struct sh_mobile_sdhi_info sdhi1_pdata __initconst = {
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.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_WRPROTECT_DISABLE,
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.tmio_caps = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
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MMC_CAP_NEEDS_POLL,
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};
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static const struct resource sdhi1_resources[] __initconst = {
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DEFINE_RES_MEM(0xee120000, 0x100),
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DEFINE_RES_IRQ(gic_spi(166)),
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};
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static const struct pinctrl_map ape6evm_pinctrl_map[] __initconst = {
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/* SCIFA0 console */
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PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.0", "pfc-r8a73a4",
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"scifa0_data", "scifa0"),
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/* SMSC */
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PIN_MAP_MUX_GROUP_DEFAULT("smsc911x", "pfc-r8a73a4",
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"irqc_irq40", "irqc"),
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/* MMCIF0 */
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PIN_MAP_MUX_GROUP_DEFAULT("sh_mmcif.0", "pfc-r8a73a4",
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"mmc0_data8", "mmc0"),
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PIN_MAP_MUX_GROUP_DEFAULT("sh_mmcif.0", "pfc-r8a73a4",
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"mmc0_ctrl", "mmc0"),
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/* SDHI0: uSD: no WP */
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PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a73a4",
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"sdhi0_data4", "sdhi0"),
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PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a73a4",
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"sdhi0_ctrl", "sdhi0"),
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PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a73a4",
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"sdhi0_cd", "sdhi0"),
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/* SDHI1 */
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PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a73a4",
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"sdhi1_data4", "sdhi1"),
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PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a73a4",
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"sdhi1_ctrl", "sdhi1"),
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};
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static void __init ape6evm_add_standard_devices(void)
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{
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struct clk *parent;
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struct clk *mp;
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r8a73a4_clock_init();
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/* MP clock parent = extal2 */
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parent = clk_get(NULL, "extal2");
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mp = clk_get(NULL, "mp");
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BUG_ON(IS_ERR(parent) || IS_ERR(mp));
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clk_set_parent(mp, parent);
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clk_put(parent);
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clk_put(mp);
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pinctrl_register_mappings(ape6evm_pinctrl_map,
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ARRAY_SIZE(ape6evm_pinctrl_map));
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r8a73a4_pinmux_init();
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r8a73a4_add_standard_devices();
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/* LAN9220 ethernet */
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gpio_request_one(270, GPIOF_OUT_INIT_HIGH, NULL); /* smsc9220 RESET */
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regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
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platform_device_register_resndata(NULL, "smsc911x", -1,
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lan9220_res, ARRAY_SIZE(lan9220_res),
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&lan9220_data, sizeof(lan9220_data));
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regulator_register_always_on(1, "MMC0 Vcc", vcc_mmc0_consumers,
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ARRAY_SIZE(vcc_mmc0_consumers), 2800000);
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platform_device_register_resndata(NULL, "sh_mmcif", 0,
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mmcif0_resources, ARRAY_SIZE(mmcif0_resources),
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&mmcif0_pdata, sizeof(mmcif0_pdata));
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platform_device_register_data(NULL, "reg-fixed-voltage", 2,
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&vcc_sdhi0_info, sizeof(vcc_sdhi0_info));
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platform_device_register_resndata(NULL, "sh_mobile_sdhi", 0,
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sdhi0_resources, ARRAY_SIZE(sdhi0_resources),
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&sdhi0_pdata, sizeof(sdhi0_pdata));
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regulator_register_always_on(3, "SDHI1 Vcc", vcc_sdhi1_consumers,
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ARRAY_SIZE(vcc_sdhi1_consumers), 3300000);
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platform_device_register_resndata(NULL, "sh_mobile_sdhi", 1,
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sdhi1_resources, ARRAY_SIZE(sdhi1_resources),
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&sdhi1_pdata, sizeof(sdhi1_pdata));
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platform_device_register_data(NULL, "gpio-keys", -1,
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&ape6evm_keys_pdata,
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sizeof(ape6evm_keys_pdata));
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platform_device_register_data(NULL, "leds-gpio", -1,
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&ape6evm_leds_pdata,
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sizeof(ape6evm_leds_pdata));
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}
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static void __init ape6evm_legacy_init_time(void)
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{
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/* Do not invoke DT-based timers via clocksource_of_init() */
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}
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static void __init ape6evm_legacy_init_irq(void)
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{
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void __iomem *gic_dist_base = ioremap_nocache(0xf1001000, 0x1000);
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void __iomem *gic_cpu_base = ioremap_nocache(0xf1002000, 0x1000);
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gic_init(0, 29, gic_dist_base, gic_cpu_base);
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/* Do not invoke DT-based interrupt code via irqchip_init() */
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}
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static const char *ape6evm_boards_compat_dt[] __initdata = {
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"renesas,ape6evm",
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NULL,
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};
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DT_MACHINE_START(APE6EVM_DT, "ape6evm")
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.init_early = shmobile_init_delay,
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.init_irq = ape6evm_legacy_init_irq,
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.init_machine = ape6evm_add_standard_devices,
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.init_late = shmobile_init_late,
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.dt_compat = ape6evm_boards_compat_dt,
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.init_time = ape6evm_legacy_init_time,
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MACHINE_END
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