/*
* Lager board support
*
* Copyright (C) 2013 Renesas Solutions Corp.
* Copyright (C) 2013 Magnus Damm
*
* 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/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/leds.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sh_mmcif.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/phy.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 <mach/common.h>
#include <mach/irqs.h>
#include <mach/r8a7790.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/mtd.h>
#include <linux/spi/flash.h>
#include <linux/spi/rspi.h>
#include <linux/spi/spi.h>
/* DU */
static struct rcar_du_encoder_data lager_du_encoders[] = {
{
.type = RCAR_DU_ENCODER_VGA,
.output = RCAR_DU_OUTPUT_DPAD0,
}, {
.type = RCAR_DU_ENCODER_NONE,
.output = RCAR_DU_OUTPUT_LVDS1,
.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 lager_du_pdata __initconst = {
.encoders = lager_du_encoders,
.num_encoders = ARRAY_SIZE(lager_du_encoders),
};
static const struct resource du_resources[] __initconst = {
DEFINE_RES_MEM(0xfeb00000, 0x70000),
DEFINE_RES_MEM_NAMED(0xfeb90000, 0x1c, "lvds.0"),
DEFINE_RES_MEM_NAMED(0xfeb94000, 0x1c, "lvds.1"),
DEFINE_RES_IRQ(gic_spi(256)),
DEFINE_RES_IRQ(gic_spi(268)),
DEFINE_RES_IRQ(gic_spi(269)),
};
static void __init lager_add_du_device(void)
{
struct platform_device_info info = {
.name = "rcar-du-r8a7790",
.id = -1,
.res = du_resources,
.num_res = ARRAY_SIZE(du_resources),
.data = &lager_du_pdata,
.size_data = sizeof(lager_du_pdata),
.dma_mask = DMA_BIT_MASK(32),
};
platform_device_register_full(&info);
}
/* LEDS */
static struct gpio_led lager_leds[] = {
{
.name = "led8",
.gpio = RCAR_GP_PIN(5, 17),
.default_state = LEDS_GPIO_DEFSTATE_ON,
}, {
.name = "led7",
.gpio = RCAR_GP_PIN(4, 23),
.default_state = LEDS_GPIO_DEFSTATE_ON,
}, {
.name = "led6",
.gpio = RCAR_GP_PIN(4, 22),
.default_state = LEDS_GPIO_DEFSTATE_ON,
},
};
static const struct gpio_led_platform_data lager_leds_pdata __initconst = {
.leds = lager_leds,
.num_leds = ARRAY_SIZE(lager_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(1, 28), "SW2-pin4"),
GPIO_KEY(KEY_3, RCAR_GP_PIN(1, 26), "SW2-pin3"),
GPIO_KEY(KEY_2, RCAR_GP_PIN(1, 24), "SW2-pin2"),
GPIO_KEY(KEY_1, RCAR_GP_PIN(1, 14), "SW2-pin1"),
};
static const struct gpio_keys_platform_data lager_keys_pdata __initconst = {
.buttons = gpio_buttons,
.nbuttons = ARRAY_SIZE(gpio_buttons),
};
/* Fixed 3.3V regulator to be used by MMCIF */
static struct regulator_consumer_supply fixed3v3_power_consumers[] =
{
REGULATOR_SUPPLY("vmmc", "sh_mmcif.1"),
};
/*
* SDHI regulator macro
*
** FIXME**
* Lager board vqmmc is provided via DA9063 PMIC chip,
* and we should use ${LINK}/drivers/mfd/da9063-* driver for it.
* but, it doesn't have regulator support at this point.
* It uses gpio-regulator for vqmmc as quick-hack.
*/
#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(5, 24), RCAR_GP_PIN(5, 29));
SDHI_REGULATOR(2, RCAR_GP_PIN(5, 25), RCAR_GP_PIN(5, 30));
/* MMCIF */
static const struct sh_mmcif_plat_data mmcif1_pdata __initconst = {
.caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
.clk_ctrl2_present = true,
.ccs_unsupported = true,
};
static const struct resource mmcif1_resources[] __initconst = {
DEFINE_RES_MEM(0xee220000, 0x80),
DEFINE_RES_IRQ(gic_spi(170)),
};
/* Ether */
static const struct sh_eth_plat_data ether_pdata __initconst = {
.phy = 0x1,
.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)),
};
/* SPI Flash memory (Spansion S25FL512SAGMFIG11 64Mb) */
static struct mtd_partition spi_flash_part[] = {
/* Reserved for user loader program, read-only */
{
.name = "loader",
.offset = 0,
.size = SZ_256K,
.mask_flags = MTD_WRITEABLE,
},
/* Reserved for user program, read-only */
{
.name = "user",
.offset = MTDPART_OFS_APPEND,
.size = SZ_4M,
.mask_flags = MTD_WRITEABLE,
},
/* All else is writable (e.g. JFFS2) */
{
.name = "flash",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0,
},
};
static 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 rspi_plat_data qspi_pdata __initconst = {
.num_chipselect = 1,
};
static const struct spi_board_info spi_info[] __initconst = {
{
.modalias = "m25p80",
.platform_data = &spi_flash_data,
.mode = SPI_MODE_0,
.max_speed_hz = 30000000,
.bus_num = 0,
.chip_select = 0,
},
};
/* QSPI resource */
static const struct resource qspi_resources[] __initconst = {
DEFINE_RES_MEM(0xe6b10000, 0x1000),
DEFINE_RES_IRQ(gic_spi(184)),
};
static const struct pinctrl_map lager_pinctrl_map[] = {
/* DU (CN10: ARGB0, CN13: LVDS) */
PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7790", "pfc-r8a7790",
"du_rgb666", "du"),
PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7790", "pfc-r8a7790",
"du_sync_1", "du"),
PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7790", "pfc-r8a7790",
"du_clk_out_0", "du"),
/* SCIF0 (CN19: DEBUG SERIAL0) */
PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.6", "pfc-r8a7790",
"scif0_data", "scif0"),
/* SCIF1 (CN20: DEBUG SERIAL1) */
PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.7", "pfc-r8a7790",
"scif1_data", "scif1"),
/* MMCIF1 */
PIN_MAP_MUX_GROUP_DEFAULT("sh_mmcif.1", "pfc-r8a7790",
"mmc1_data8", "mmc1"),
PIN_MAP_MUX_GROUP_DEFAULT("sh_mmcif.1", "pfc-r8a7790",
"mmc1_ctrl", "mmc1"),
/* Ether */
PIN_MAP_MUX_GROUP_DEFAULT("r8a7790-ether", "pfc-r8a7790",
"eth_link", "eth"),
PIN_MAP_MUX_GROUP_DEFAULT("r8a7790-ether", "pfc-r8a7790",
"eth_mdio", "eth"),
PIN_MAP_MUX_GROUP_DEFAULT("r8a7790-ether", "pfc-r8a7790",
"eth_rmii", "eth"),
PIN_MAP_MUX_GROUP_DEFAULT("r8a7790-ether", "pfc-r8a7790",
"intc_irq0", "intc"),
};
static void __init lager_add_standard_devices(void)
{
int fixed_regulator_idx = 0;
int gpio_regulator_idx = 0;
r8a7790_clock_init();
pinctrl_register_mappings(lager_pinctrl_map,
ARRAY_SIZE(lager_pinctrl_map));
r8a7790_pinmux_init();
r8a7790_add_standard_devices();
platform_device_register_data(&platform_bus, "leds-gpio", -1,
&lager_leds_pdata,
sizeof(lager_leds_pdata));
platform_device_register_data(&platform_bus, "gpio-keys", -1,
&lager_keys_pdata,
sizeof(lager_keys_pdata));
regulator_register_always_on(fixed_regulator_idx++,
"fixed-3.3V", fixed3v3_power_consumers,
ARRAY_SIZE(fixed3v3_power_consumers), 3300000);
platform_device_register_resndata(&platform_bus, "sh_mmcif", 1,
mmcif1_resources, ARRAY_SIZE(mmcif1_resources),
&mmcif1_pdata, sizeof(mmcif1_pdata));
platform_device_register_resndata(&platform_bus, "r8a7790-ether", -1,
ether_resources,
ARRAY_SIZE(ether_resources),
ðer_pdata, sizeof(ether_pdata));
lager_add_du_device();
platform_device_register_resndata(&platform_bus, "qspi", 0,
qspi_resources,
ARRAY_SIZE(qspi_resources),
&qspi_pdata, sizeof(qspi_pdata));
spi_register_board_info(spi_info, ARRAY_SIZE(spi_info));
platform_device_register_data(&platform_bus, "reg-fixed-voltage", fixed_regulator_idx++,
&vcc_sdhi0_info, sizeof(struct fixed_voltage_config));
platform_device_register_data(&platform_bus, "reg-fixed-voltage", fixed_regulator_idx++,
&vcc_sdhi2_info, sizeof(struct fixed_voltage_config));
platform_device_register_data(&platform_bus, "gpio-regulator", gpio_regulator_idx++,
&vccq_sdhi0_info, sizeof(struct gpio_regulator_config));
platform_device_register_data(&platform_bus, "gpio-regulator", gpio_regulator_idx++,
&vccq_sdhi2_info, sizeof(struct gpio_regulator_config));
}
/*
* Ether LEDs on the Lager 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 lager_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 lager_init(void)
{
lager_add_standard_devices();
if (IS_ENABLED(CONFIG_PHYLIB))
phy_register_fixup_for_id("r8a7790-ether-ff:01",
lager_ksz8041_fixup);
}
static const char * const lager_boards_compat_dt[] __initconst = {
"renesas,lager",
NULL,
};
DT_MACHINE_START(LAGER_DT, "lager")
.smp = smp_ops(r8a7790_smp_ops),
.init_early = r8a7790_init_early,
.init_time = rcar_gen2_timer_init,
.init_machine = lager_init,
.init_late = shmobile_init_late,
.dt_compat = lager_boards_compat_dt,
MACHINE_END