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/*
* Koelsch board support
*
* Copyright (C) 2013 Renesas Electronics Corporation
* 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/dma-mapping.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/kernel.h>
#include <linux/leds.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/sh_eth.h>
#include <mach/common.h>
#include <mach/irqs.h>
#include <mach/r8a7791.h>
#include <mach/rcar-gen2.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.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,
.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)),
};
/* 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),
};
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"),
/* 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"),
};
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_resndata(&platform_bus, "r8a7791-ether", -1,
ether_resources,
ARRAY_SIZE(ether_resources),
ðer_pdata, sizeof(ether_pdata));
platform_device_register_data(&platform_bus, "leds-gpio", -1,
&koelsch_leds_pdata,
sizeof(koelsch_leds_pdata));
platform_device_register_data(&platform_bus, "gpio-keys", -1,
&koelsch_keys_pdata,
sizeof(koelsch_keys_pdata));
koelsch_add_du_device();
}
/*
* 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();
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 = r8a7791_init_early,
.init_time = rcar_gen2_timer_init,
.init_machine = koelsch_init,
.init_late = shmobile_init_late,
.dt_compat = koelsch_boards_compat_dt,
MACHINE_END
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