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linux-next/arch/arm/mach-shmobile/board-koelsch.c
Linus Torvalds 231bf80f7f ARM: SoC board changes for 3.17 
This is the smallest board branch we have ever had. Most of this is a
 few cleanups for board code for Renesas shmobile, with a bit of legacy
 driver support added. This is strongly trending in the right direction now.
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Merge tag 'boards-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC board changes from Olof Johansson:
 "This is the smallest board branch we have ever had.  Most of this is a
  few cleanups for board code for Renesas shmobile, with a bit of legacy
  driver support added.  This is strongly trending in the right
  direction now"

* tag 'boards-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: shmobile: Enable R-Car Gen2 CMA code in board files
  ARM: shmobile: armadillo800eva reference: Spelling s/ED/LED/
  ARM: shmobile: armadillo800eva legacy: Add LED support
  ARM: shmobile: lager-reference: Remove workarounds for core clock issues
  ARM: shmobile: koelsch-reference: Remove workarounds for core clock issues
2014-08-08 11:16:17 -07:00

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/*
* Koelsch board support
*
* Copyright (C) 2013 Renesas Electronics Corporation
* Copyright (C) 2013-2014 Renesas Solutions Corp.
* Copyright (C) 2013 Magnus Damm
* Copyright (C) 2014 Cogent Embedded, 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <linux/dma-mapping.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/leds.h>
#include <linux/mfd/tmio.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sh_mobile_sdhi.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/phy.h>
#include <linux/pinctrl/machine.h>
#include <linux/platform_data/gpio-rcar.h>
#include <linux/platform_data/rcar-du.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/gpio-regulator.h>
#include <linux/regulator/machine.h>
#include <linux/sh_eth.h>
#include <linux/spi/flash.h>
#include <linux/spi/rspi.h>
#include <linux/spi/spi.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include "common.h"
#include "irqs.h"
#include "r8a7791.h"
#include "rcar-gen2.h"
/* DU */
static struct rcar_du_encoder_data koelsch_du_encoders[] = {
{
.type = RCAR_DU_ENCODER_NONE,
.output = RCAR_DU_OUTPUT_LVDS0,
.connector.lvds.panel = {
.width_mm = 210,
.height_mm = 158,
.mode = {
.clock = 65000,
.hdisplay = 1024,
.hsync_start = 1048,
.hsync_end = 1184,
.htotal = 1344,
.vdisplay = 768,
.vsync_start = 771,
.vsync_end = 777,
.vtotal = 806,
.flags = 0,
},
},
},
};
static const struct rcar_du_platform_data koelsch_du_pdata __initconst = {
.encoders = koelsch_du_encoders,
.num_encoders = ARRAY_SIZE(koelsch_du_encoders),
};
static const struct resource du_resources[] __initconst = {
DEFINE_RES_MEM(0xfeb00000, 0x40000),
DEFINE_RES_MEM_NAMED(0xfeb90000, 0x1c, "lvds.0"),
DEFINE_RES_IRQ(gic_spi(256)),
DEFINE_RES_IRQ(gic_spi(268)),
};
static void __init koelsch_add_du_device(void)
{
struct platform_device_info info = {
.name = "rcar-du-r8a7791",
.id = -1,
.res = du_resources,
.num_res = ARRAY_SIZE(du_resources),
.data = &koelsch_du_pdata,
.size_data = sizeof(koelsch_du_pdata),
.dma_mask = DMA_BIT_MASK(32),
};
platform_device_register_full(&info);
}
/* Ether */
static const struct sh_eth_plat_data ether_pdata __initconst = {
.phy = 0x1,
.phy_irq = irq_pin(0),
.edmac_endian = EDMAC_LITTLE_ENDIAN,
.phy_interface = PHY_INTERFACE_MODE_RMII,
.ether_link_active_low = 1,
};
static const struct resource ether_resources[] __initconst = {
DEFINE_RES_MEM(0xee700000, 0x400),
DEFINE_RES_IRQ(gic_spi(162)),
};
static const struct platform_device_info ether_info __initconst = {
.name = "r8a7791-ether",
.id = -1,
.res = ether_resources,
.num_res = ARRAY_SIZE(ether_resources),
.data = &ether_pdata,
.size_data = sizeof(ether_pdata),
.dma_mask = DMA_BIT_MASK(32),
};
/* LEDS */
static struct gpio_led koelsch_leds[] = {
{
.name = "led8",
.gpio = RCAR_GP_PIN(2, 21),
.default_state = LEDS_GPIO_DEFSTATE_ON,
}, {
.name = "led7",
.gpio = RCAR_GP_PIN(2, 20),
.default_state = LEDS_GPIO_DEFSTATE_ON,
}, {
.name = "led6",
.gpio = RCAR_GP_PIN(2, 19),
.default_state = LEDS_GPIO_DEFSTATE_ON,
},
};
static const struct gpio_led_platform_data koelsch_leds_pdata __initconst = {
.leds = koelsch_leds,
.num_leds = ARRAY_SIZE(koelsch_leds),
};
/* GPIO KEY */
#define GPIO_KEY(c, g, d, ...) \
{ .code = c, .gpio = g, .desc = d, .active_low = 1, \
.wakeup = 1, .debounce_interval = 20 }
static struct gpio_keys_button gpio_buttons[] = {
GPIO_KEY(KEY_4, RCAR_GP_PIN(5, 3), "SW2-pin4"),
GPIO_KEY(KEY_3, RCAR_GP_PIN(5, 2), "SW2-pin3"),
GPIO_KEY(KEY_2, RCAR_GP_PIN(5, 1), "SW2-pin2"),
GPIO_KEY(KEY_1, RCAR_GP_PIN(5, 0), "SW2-pin1"),
GPIO_KEY(KEY_G, RCAR_GP_PIN(7, 6), "SW36"),
GPIO_KEY(KEY_F, RCAR_GP_PIN(7, 5), "SW35"),
GPIO_KEY(KEY_E, RCAR_GP_PIN(7, 4), "SW34"),
GPIO_KEY(KEY_D, RCAR_GP_PIN(7, 3), "SW33"),
GPIO_KEY(KEY_C, RCAR_GP_PIN(7, 2), "SW32"),
GPIO_KEY(KEY_B, RCAR_GP_PIN(7, 1), "SW31"),
GPIO_KEY(KEY_A, RCAR_GP_PIN(7, 0), "SW30"),
};
static const struct gpio_keys_platform_data koelsch_keys_pdata __initconst = {
.buttons = gpio_buttons,
.nbuttons = ARRAY_SIZE(gpio_buttons),
};
/* QSPI */
static const struct resource qspi_resources[] __initconst = {
DEFINE_RES_MEM(0xe6b10000, 0x1000),
DEFINE_RES_IRQ_NAMED(gic_spi(184), "mux"),
};
static const struct rspi_plat_data qspi_pdata __initconst = {
.num_chipselect = 1,
};
/* SPI Flash memory (Spansion S25FL512SAGMFIG11 64 MiB) */
static struct mtd_partition spi_flash_part[] = {
{
.name = "loader",
.offset = 0x00000000,
.size = 512 * 1024,
.mask_flags = MTD_WRITEABLE,
},
{
.name = "bootenv",
.offset = MTDPART_OFS_APPEND,
.size = 512 * 1024,
.mask_flags = MTD_WRITEABLE,
},
{
.name = "data",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static const struct flash_platform_data spi_flash_data = {
.name = "m25p80",
.parts = spi_flash_part,
.nr_parts = ARRAY_SIZE(spi_flash_part),
.type = "s25fl512s",
};
static const struct spi_board_info spi_info[] __initconst = {
{
.modalias = "m25p80",
.platform_data = &spi_flash_data,
.mode = SPI_MODE_0 | SPI_TX_QUAD | SPI_RX_QUAD,
.max_speed_hz = 30000000,
.bus_num = 0,
.chip_select = 0,
},
};
/* SATA0 */
static const struct resource sata0_resources[] __initconst = {
DEFINE_RES_MEM(0xee300000, 0x2000),
DEFINE_RES_IRQ(gic_spi(105)),
};
static const struct platform_device_info sata0_info __initconst = {
.name = "sata-r8a7791",
.id = 0,
.res = sata0_resources,
.num_res = ARRAY_SIZE(sata0_resources),
.dma_mask = DMA_BIT_MASK(32),
};
/* I2C */
static const struct resource i2c_resources[] __initconst = {
/* I2C0 */
DEFINE_RES_MEM(0xE6508000, 0x40),
DEFINE_RES_IRQ(gic_spi(287)),
/* I2C1 */
DEFINE_RES_MEM(0xE6518000, 0x40),
DEFINE_RES_IRQ(gic_spi(288)),
/* I2C2 */
DEFINE_RES_MEM(0xE6530000, 0x40),
DEFINE_RES_IRQ(gic_spi(286)),
/* I2C3 */
DEFINE_RES_MEM(0xE6540000, 0x40),
DEFINE_RES_IRQ(gic_spi(290)),
/* I2C4 */
DEFINE_RES_MEM(0xE6520000, 0x40),
DEFINE_RES_IRQ(gic_spi(19)),
/* I2C5 */
DEFINE_RES_MEM(0xE6528000, 0x40),
DEFINE_RES_IRQ(gic_spi(20)),
};
static void __init koelsch_add_i2c(unsigned idx)
{
unsigned res_idx = idx * 2;
BUG_ON(res_idx >= ARRAY_SIZE(i2c_resources));
platform_device_register_simple("i2c-rcar_gen2", idx,
i2c_resources + res_idx, 2);
}
#define SDHI_REGULATOR(idx, vdd_pin, vccq_pin) \
static struct regulator_consumer_supply vcc_sdhi##idx##_consumer = \
REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi." #idx); \
\
static struct regulator_init_data vcc_sdhi##idx##_init_data = { \
.constraints = { \
.valid_ops_mask = REGULATOR_CHANGE_STATUS, \
}, \
.consumer_supplies = &vcc_sdhi##idx##_consumer, \
.num_consumer_supplies = 1, \
}; \
\
static const struct fixed_voltage_config vcc_sdhi##idx##_info __initconst = {\
.supply_name = "SDHI" #idx "Vcc", \
.microvolts = 3300000, \
.gpio = vdd_pin, \
.enable_high = 1, \
.init_data = &vcc_sdhi##idx##_init_data, \
}; \
\
static struct regulator_consumer_supply vccq_sdhi##idx##_consumer = \
REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi." #idx); \
\
static struct regulator_init_data vccq_sdhi##idx##_init_data = { \
.constraints = { \
.input_uV = 3300000, \
.min_uV = 1800000, \
.max_uV = 3300000, \
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | \
REGULATOR_CHANGE_STATUS, \
}, \
.consumer_supplies = &vccq_sdhi##idx##_consumer, \
.num_consumer_supplies = 1, \
}; \
\
static struct gpio vccq_sdhi##idx##_gpio = \
{ vccq_pin, GPIOF_OUT_INIT_HIGH, "vccq-sdhi" #idx }; \
\
static struct gpio_regulator_state vccq_sdhi##idx##_states[] = { \
{ .value = 1800000, .gpios = 0 }, \
{ .value = 3300000, .gpios = 1 }, \
}; \
\
static const struct gpio_regulator_config vccq_sdhi##idx##_info __initconst = {\
.supply_name = "vqmmc", \
.gpios = &vccq_sdhi##idx##_gpio, \
.nr_gpios = 1, \
.states = vccq_sdhi##idx##_states, \
.nr_states = ARRAY_SIZE(vccq_sdhi##idx##_states), \
.type = REGULATOR_VOLTAGE, \
.init_data = &vccq_sdhi##idx##_init_data, \
};
SDHI_REGULATOR(0, RCAR_GP_PIN(7, 17), RCAR_GP_PIN(2, 12));
SDHI_REGULATOR(1, RCAR_GP_PIN(7, 18), RCAR_GP_PIN(2, 13));
SDHI_REGULATOR(2, RCAR_GP_PIN(7, 19), RCAR_GP_PIN(2, 26));
/* SDHI0 */
static struct sh_mobile_sdhi_info sdhi0_info __initdata = {
.tmio_caps = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
MMC_CAP_POWER_OFF_CARD,
.tmio_caps2 = MMC_CAP2_NO_MULTI_READ,
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT,
};
static struct resource sdhi0_resources[] __initdata = {
DEFINE_RES_MEM(0xee100000, 0x200),
DEFINE_RES_IRQ(gic_spi(165)),
};
/* SDHI1 */
static struct sh_mobile_sdhi_info sdhi1_info __initdata = {
.tmio_caps = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
MMC_CAP_POWER_OFF_CARD,
.tmio_caps2 = MMC_CAP2_NO_MULTI_READ,
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT,
};
static struct resource sdhi1_resources[] __initdata = {
DEFINE_RES_MEM(0xee140000, 0x100),
DEFINE_RES_IRQ(gic_spi(167)),
};
/* SDHI2 */
static struct sh_mobile_sdhi_info sdhi2_info __initdata = {
.tmio_caps = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ |
MMC_CAP_POWER_OFF_CARD,
.tmio_caps2 = MMC_CAP2_NO_MULTI_READ,
.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT |
TMIO_MMC_WRPROTECT_DISABLE,
};
static struct resource sdhi2_resources[] __initdata = {
DEFINE_RES_MEM(0xee160000, 0x100),
DEFINE_RES_IRQ(gic_spi(168)),
};
static const struct pinctrl_map koelsch_pinctrl_map[] = {
/* DU */
PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7791", "pfc-r8a7791",
"du_rgb666", "du"),
PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7791", "pfc-r8a7791",
"du_sync", "du"),
PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7791", "pfc-r8a7791",
"du_clk_out_0", "du"),
/* Ether */
PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791",
"eth_link", "eth"),
PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791",
"eth_mdio", "eth"),
PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791",
"eth_rmii", "eth"),
PIN_MAP_MUX_GROUP_DEFAULT("r8a7791-ether", "pfc-r8a7791",
"intc_irq0", "intc"),
/* QSPI */
PIN_MAP_MUX_GROUP_DEFAULT("qspi.0", "pfc-r8a7791",
"qspi_ctrl", "qspi"),
PIN_MAP_MUX_GROUP_DEFAULT("qspi.0", "pfc-r8a7791",
"qspi_data4", "qspi"),
/* SCIF0 (CN19: DEBUG SERIAL0) */
PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.6", "pfc-r8a7791",
"scif0_data_d", "scif0"),
/* SCIF1 (CN20: DEBUG SERIAL1) */
PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.7", "pfc-r8a7791",
"scif1_data_d", "scif1"),
/* I2C1 */
PIN_MAP_MUX_GROUP_DEFAULT("i2c-rcar_gen2.1", "pfc-r8a7791",
"i2c1_e", "i2c1"),
/* I2C2 */
PIN_MAP_MUX_GROUP_DEFAULT("i2c-rcar_gen2.2", "pfc-r8a7791",
"i2c2", "i2c2"),
/* I2C4 */
PIN_MAP_MUX_GROUP_DEFAULT("i2c-rcar_gen2.4", "pfc-r8a7791",
"i2c4_c", "i2c4"),
/* SDHI0 */
PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7791",
"sdhi0_data4", "sdhi0"),
PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7791",
"sdhi0_ctrl", "sdhi0"),
PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7791",
"sdhi0_cd", "sdhi0"),
PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7791",
"sdhi0_wp", "sdhi0"),
/* SDHI2 */
PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a7791",
"sdhi1_data4", "sdhi1"),
PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a7791",
"sdhi1_ctrl", "sdhi1"),
PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a7791",
"sdhi1_cd", "sdhi1"),
PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.1", "pfc-r8a7791",
"sdhi1_wp", "sdhi1"),
/* SDHI2 */
PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.2", "pfc-r8a7791",
"sdhi2_data4", "sdhi2"),
PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.2", "pfc-r8a7791",
"sdhi2_ctrl", "sdhi2"),
PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.2", "pfc-r8a7791",
"sdhi2_cd", "sdhi2"),
};
static void __init koelsch_add_standard_devices(void)
{
r8a7791_clock_init();
pinctrl_register_mappings(koelsch_pinctrl_map,
ARRAY_SIZE(koelsch_pinctrl_map));
r8a7791_pinmux_init();
r8a7791_add_standard_devices();
platform_device_register_full(&ether_info);
platform_device_register_data(NULL, "leds-gpio", -1,
&koelsch_leds_pdata,
sizeof(koelsch_leds_pdata));
platform_device_register_data(NULL, "gpio-keys", -1,
&koelsch_keys_pdata,
sizeof(koelsch_keys_pdata));
platform_device_register_resndata(NULL, "qspi", 0,
qspi_resources,
ARRAY_SIZE(qspi_resources),
&qspi_pdata, sizeof(qspi_pdata));
spi_register_board_info(spi_info, ARRAY_SIZE(spi_info));
koelsch_add_du_device();
platform_device_register_full(&sata0_info);
koelsch_add_i2c(1);
koelsch_add_i2c(2);
koelsch_add_i2c(4);
koelsch_add_i2c(5);
platform_device_register_data(NULL, "reg-fixed-voltage", 0,
&vcc_sdhi0_info, sizeof(struct fixed_voltage_config));
platform_device_register_data(NULL, "reg-fixed-voltage", 1,
&vcc_sdhi1_info, sizeof(struct fixed_voltage_config));
platform_device_register_data(NULL, "reg-fixed-voltage", 2,
&vcc_sdhi2_info, sizeof(struct fixed_voltage_config));
platform_device_register_data(NULL, "gpio-regulator", 0,
&vccq_sdhi0_info, sizeof(struct gpio_regulator_config));
platform_device_register_data(NULL, "gpio-regulator", 1,
&vccq_sdhi1_info, sizeof(struct gpio_regulator_config));
platform_device_register_data(NULL, "gpio-regulator", 2,
&vccq_sdhi2_info, sizeof(struct gpio_regulator_config));
platform_device_register_resndata(NULL, "sh_mobile_sdhi", 0,
sdhi0_resources, ARRAY_SIZE(sdhi0_resources),
&sdhi0_info, sizeof(struct sh_mobile_sdhi_info));
platform_device_register_resndata(NULL, "sh_mobile_sdhi", 1,
sdhi1_resources, ARRAY_SIZE(sdhi1_resources),
&sdhi1_info, sizeof(struct sh_mobile_sdhi_info));
platform_device_register_resndata(NULL, "sh_mobile_sdhi", 2,
sdhi2_resources, ARRAY_SIZE(sdhi2_resources),
&sdhi2_info, sizeof(struct sh_mobile_sdhi_info));
}
/*
* Ether LEDs on the Koelsch board are named LINK and ACTIVE which corresponds
* to non-default 01 setting of the Micrel KSZ8041 PHY control register 1 bits
* 14-15. We have to set them back to 01 from the default 00 value each time
* the PHY is reset. It's also important because the PHY's LED0 signal is
* connected to SoC's ETH_LINK signal and in the PHY's default mode it will
* bounce on and off after each packet, which we apparently want to avoid.
*/
static int koelsch_ksz8041_fixup(struct phy_device *phydev)
{
u16 phyctrl1 = phy_read(phydev, 0x1e);
phyctrl1 &= ~0xc000;
phyctrl1 |= 0x4000;
return phy_write(phydev, 0x1e, phyctrl1);
}
static void __init koelsch_init(void)
{
koelsch_add_standard_devices();
irq_set_irq_type(irq_pin(0), IRQ_TYPE_LEVEL_LOW);
if (IS_ENABLED(CONFIG_PHYLIB))
phy_register_fixup_for_id("r8a7791-ether-ff:01",
koelsch_ksz8041_fixup);
}
static const char * const koelsch_boards_compat_dt[] __initconst = {
"renesas,koelsch",
NULL,
};
DT_MACHINE_START(KOELSCH_DT, "koelsch")
.smp = smp_ops(r8a7791_smp_ops),
.init_early = shmobile_init_delay,
.init_time = rcar_gen2_timer_init,
.init_machine = koelsch_init,
.init_late = shmobile_init_late,
.reserve = rcar_gen2_reserve,
.dt_compat = koelsch_boards_compat_dt,
MACHINE_END
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