root/arch/sh/boards/mach-rsk/devices-rsk7203.c
// SPDX-License-Identifier: GPL-2.0
/*
 * Renesas Technology Europe RSK+ 7203 Support.
 *
 * Copyright (C) 2008 - 2010  Paul Mundt
 */
#include <linux/init.h>
#include <linux/types.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/smsc911x.h>
#include <linux/input.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/leds.h>
#include <asm/machvec.h>
#include <asm/io.h>
#include <cpu/sh7203.h>

static struct smsc911x_platform_config smsc911x_config = {
        .phy_interface  = PHY_INTERFACE_MODE_MII,
        .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
        .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
        .flags          = SMSC911X_USE_32BIT | SMSC911X_SWAP_FIFO,
};

static struct resource smsc911x_resources[] = {
        [0] = {
                .start          = 0x24000000,
                .end            = 0x240000ff,
                .flags          = IORESOURCE_MEM,
        },
        [1] = {
                .start          = 64,
                .end            = 64,
                .flags          = IORESOURCE_IRQ,
        },
};

static struct platform_device smsc911x_device = {
        .name           = "smsc911x",
        .id             = -1,
        .num_resources  = ARRAY_SIZE(smsc911x_resources),
        .resource       = smsc911x_resources,
        .dev            = {
                .platform_data = &smsc911x_config,
        },
};

static struct gpio_led rsk7203_gpio_leds[] = {
        {
                .name                   = "green",
                .gpio                   = GPIO_PE10,
                .active_low             = 1,
        }, {
                .name                   = "orange",
                .default_trigger        = "nand-disk",
                .gpio                   = GPIO_PE12,
                .active_low             = 1,
        }, {
                .name                   = "red:timer",
                .default_trigger        = "timer",
                .gpio                   = GPIO_PC14,
                .active_low             = 1,
        }, {
                .name                   = "red:heartbeat",
                .default_trigger        = "heartbeat",
                .gpio                   = GPIO_PE11,
                .active_low             = 1,
        },
};

static struct gpio_led_platform_data rsk7203_gpio_leds_info = {
        .leds           = rsk7203_gpio_leds,
        .num_leds       = ARRAY_SIZE(rsk7203_gpio_leds),
};

static struct platform_device led_device = {
        .name           = "leds-gpio",
        .id             = -1,
        .dev            = {
                .platform_data  = &rsk7203_gpio_leds_info,
        },
};

static struct gpio_keys_button rsk7203_gpio_keys_table[] = {
        {
                .code           = BTN_0,
                .gpio           = GPIO_PB0,
                .active_low     = 1,
                .desc           = "SW1",
        }, {
                .code           = BTN_1,
                .gpio           = GPIO_PB1,
                .active_low     = 1,
                .desc           = "SW2",
        }, {
                .code           = BTN_2,
                .gpio           = GPIO_PB2,
                .active_low     = 1,
                .desc           = "SW3",
        },
};

static struct gpio_keys_platform_data rsk7203_gpio_keys_info = {
        .buttons        = rsk7203_gpio_keys_table,
        .nbuttons       = ARRAY_SIZE(rsk7203_gpio_keys_table),
        .poll_interval  = 50, /* default to 50ms */
};

static struct platform_device keys_device = {
        .name           = "gpio-keys-polled",
        .dev            = {
                .platform_data  = &rsk7203_gpio_keys_info,
        },
};

static struct platform_device *rsk7203_devices[] __initdata = {
        &smsc911x_device,
        &led_device,
        &keys_device,
};

static int __init rsk7203_devices_setup(void)
{
        /* Select pins for SCIF0 */
        gpio_request(GPIO_FN_TXD0, NULL);
        gpio_request(GPIO_FN_RXD0, NULL);

        /* Setup LAN9118: CS1 in 16-bit Big Endian Mode, IRQ0 at Port B */
        __raw_writel(0x36db0400, 0xfffc0008); /* CS1BCR */
        gpio_request(GPIO_FN_IRQ0_PB, NULL);

        return platform_add_devices(rsk7203_devices,
                                    ARRAY_SIZE(rsk7203_devices));
}
device_initcall(rsk7203_devices_setup);