linux/arch/blackfin/mach-bf533/boards/ezkit.c

/*
 * Copyright 2004-2009 Analog Devices Inc.
 *                2005 National ICT Australia (NICTA)
 *                      Aidan Williams <aidan@nicta.com.au>
 *
 * Licensed under the GPL-2 or later.
 */

#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/plat-ram.h>
#include <linux/mtd/physmap.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#if IS_ENABLED(CONFIG_USB_ISP1362_HCD)
#include <linux/usb/isp1362.h>
#endif
#include <linux/irq.h>
#include <linux/i2c.h>
#include <asm/dma.h>
#include <asm/bfin5xx_spi.h>
#include <asm/portmux.h>
#include <asm/dpmc.h>

/*
 * Name the Board for the /proc/cpuinfo
 */
const char bfin_board_name[] = "ADI BF533-EZKIT";

#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
static struct platform_device rtc_device = {
	.name = "rtc-bfin",
	.id   = -1,
};
#endif

/*
 *  USB-LAN EzExtender board
 *  Driver needs to know address, irq and flag pin.
 */
#if IS_ENABLED(CONFIG_SMC91X)
#include <linux/smc91x.h>

static struct smc91x_platdata smc91x_info = {
	.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
	.leda = RPC_LED_100_10,
	.ledb = RPC_LED_TX_RX,
};

static struct resource smc91x_resources[] = {
	{
		.name = "smc91x-regs",
		.start = 0x20310300,
		.end = 0x20310300 + 16,
		.flags = IORESOURCE_MEM,
	}, {
		.start = IRQ_PF9,
		.end = IRQ_PF9,
		.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
	},
};
static struct platform_device smc91x_device = {
	.name = "smc91x",
	.id = 0,
	.num_resources = ARRAY_SIZE(smc91x_resources),
	.resource = smc91x_resources,
	.dev	= {
		.platform_data	= &smc91x_info,
	},
};
#endif

#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
static struct mtd_partition ezkit_partitions_a[] = {
	{
		.name       = "bootloader(nor a)",
		.size       = 0x40000,
		.offset     = 0,
	}, {
		.name       = "linux kernel(nor a)",
		.size       = MTDPART_SIZ_FULL,
		.offset     = MTDPART_OFS_APPEND,
	},
};

static struct physmap_flash_data ezkit_flash_data_a = {
	.width      = 2,
	.parts      = ezkit_partitions_a,
	.nr_parts   = ARRAY_SIZE(ezkit_partitions_a),
};

static struct resource ezkit_flash_resource_a = {
	.start = 0x20000000,
	.end   = 0x200fffff,
	.flags = IORESOURCE_MEM,
};

static struct platform_device ezkit_flash_device_a = {
	.name          = "physmap-flash",
	.id            = 0,
	.dev = {
		.platform_data = &ezkit_flash_data_a,
	},
	.num_resources = 1,
	.resource      = &ezkit_flash_resource_a,
};

static struct mtd_partition ezkit_partitions_b[] = {
	{
		.name   = "file system(nor b)",
		.size   = MTDPART_SIZ_FULL,
		.offset = MTDPART_OFS_APPEND,
	},
};

static struct physmap_flash_data ezkit_flash_data_b = {
	.width      = 2,
	.parts      = ezkit_partitions_b,
	.nr_parts   = ARRAY_SIZE(ezkit_partitions_b),
};

static struct resource ezkit_flash_resource_b = {
	.start = 0x20100000,
	.end   = 0x201fffff,
	.flags = IORESOURCE_MEM,
};

static struct platform_device ezkit_flash_device_b = {
	.name          = "physmap-flash",
	.id            = 4,
	.dev = {
		.platform_data = &ezkit_flash_data_b,
	},
	.num_resources = 1,
	.resource      = &ezkit_flash_resource_b,
};
#endif

#if IS_ENABLED(CONFIG_MTD_PLATRAM)
static struct platdata_mtd_ram sram_data_a = {
	.mapname   = "Flash A SRAM",
	.bankwidth = 2,
};

static struct resource sram_resource_a = {
	.start = 0x20240000,
	.end   = 0x2024ffff,
	.flags = IORESOURCE_MEM,
};

static struct platform_device sram_device_a = {
	.name          = "mtd-ram",
	.id            = 8,
	.dev = {
		.platform_data = &sram_data_a,
	},
	.num_resources = 1,
	.resource      = &sram_resource_a,
};

static struct platdata_mtd_ram sram_data_b = {
	.mapname   = "Flash B SRAM",
	.bankwidth = 2,
};

static struct resource sram_resource_b = {
	.start = 0x202c0000,
	.end   = 0x202cffff,
	.flags = IORESOURCE_MEM,
};

static struct platform_device sram_device_b = {
	.name          = "mtd-ram",
	.id            = 9,
	.dev = {
		.platform_data = &sram_data_b,
	},
	.num_resources = 1,
	.resource      = &sram_resource_b,
};
#endif

#if IS_ENABLED(CONFIG_MTD_M25P80)
static struct mtd_partition bfin_spi_flash_partitions[] = {
	{
		.name = "bootloader(spi)",
		.size = 0x00020000,
		.offset = 0,
		.mask_flags = MTD_CAP_ROM
	}, {
		.name = "linux kernel(spi)",
		.size = 0xe0000,
		.offset = MTDPART_OFS_APPEND,
	}, {
		.name = "file system(spi)",
		.size = MTDPART_SIZ_FULL,
		.offset = MTDPART_OFS_APPEND,
	}
};

static struct flash_platform_data bfin_spi_flash_data = {
	.name = "m25p80",
	.parts = bfin_spi_flash_partitions,
	.nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
	.type = "m25p64",
};

/* SPI flash chip (m25p64) */
static struct bfin5xx_spi_chip spi_flash_chip_info = {
	.enable_dma = 0,         /* use dma transfer with this chip*/
};
#endif

static struct spi_board_info bfin_spi_board_info[] __initdata = {
#if IS_ENABLED(CONFIG_MTD_M25P80)
	{
		/* the modalias must be the same as spi device driver name */
		.modalias = "m25p80", /* Name of spi_driver for this device */
		.max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
		.bus_num = 0, /* Framework bus number */
		.chip_select = 2, /* Framework chip select. On STAMP537 it is SPISSEL2*/
		.platform_data = &bfin_spi_flash_data,
		.controller_data = &spi_flash_chip_info,
		.mode = SPI_MODE_3,
	},
#endif

#if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD183X)
	{
		.modalias = "ad183x",
		.max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
		.bus_num = 0,
		.chip_select = 4,
	},
#endif
#if IS_ENABLED(CONFIG_SPI_SPIDEV)
	{
		.modalias = "spidev",
		.max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
		.bus_num = 0,
		.chip_select = 1,
	},
#endif
};

#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
/* SPI (0) */
static struct resource bfin_spi0_resource[] = {
	[0] = {
		.start = SPI0_REGBASE,
		.end   = SPI0_REGBASE + 0xFF,
		.flags = IORESOURCE_MEM,
	},
	[1] = {
		.start = CH_SPI,
		.end   = CH_SPI,
		.flags = IORESOURCE_DMA,
	},
	[2] = {
		.start = IRQ_SPI,
		.end   = IRQ_SPI,
		.flags = IORESOURCE_IRQ,
	}
};

/* SPI controller data */
static struct bfin5xx_spi_master bfin_spi0_info = {
	.num_chipselect = 8,
	.enable_dma = 1,  /* master has the ability to do dma transfer */
	.pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
};

static struct platform_device bfin_spi0_device = {
	.name = "bfin-spi",
	.id = 0, /* Bus number */
	.num_resources = ARRAY_SIZE(bfin_spi0_resource),
	.resource = bfin_spi0_resource,
	.dev = {
		.platform_data = &bfin_spi0_info, /* Passed to driver */
	},
};
#endif  /* spi master and devices */

#if IS_ENABLED(CONFIG_SERIAL_BFIN)
#ifdef CONFIG_SERIAL_BFIN_UART0
static struct resource bfin_uart0_resources[] = {
	{
		.start = BFIN_UART_THR,
		.end = BFIN_UART_GCTL+2,
		.flags = IORESOURCE_MEM,
	},
	{
		.start = IRQ_UART0_TX,
		.end = IRQ_UART0_TX,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = IRQ_UART0_RX,
		.end = IRQ_UART0_RX,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = IRQ_UART0_ERROR,
		.end = IRQ_UART0_ERROR,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = CH_UART0_TX,
		.end = CH_UART0_TX,
		.flags = IORESOURCE_DMA,
	},
	{
		.start = CH_UART0_RX,
		.end = CH_UART0_RX,
		.flags = IORESOURCE_DMA,
	},
};

static unsigned short bfin_uart0_peripherals[] = {
	P_UART0_TX, P_UART0_RX, 0
};

static struct platform_device bfin_uart0_device = {
	.name = "bfin-uart",
	.id = 0,
	.num_resources = ARRAY_SIZE(bfin_uart0_resources),
	.resource = bfin_uart0_resources,
	.dev = {
		.platform_data = &bfin_uart0_peripherals, /* Passed to driver */
	},
};
#endif
#endif

#if IS_ENABLED(CONFIG_BFIN_SIR)
#ifdef CONFIG_BFIN_SIR0
static struct resource bfin_sir0_resources[] = {
	{
		.start = 0xFFC00400,
		.end = 0xFFC004FF,
		.flags = IORESOURCE_MEM,
	},
	{
		.start = IRQ_UART0_RX,
		.end = IRQ_UART0_RX+1,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = CH_UART0_RX,
		.end = CH_UART0_RX+1,
		.flags = IORESOURCE_DMA,
	},
};

static struct platform_device bfin_sir0_device = {
	.name = "bfin_sir",
	.id = 0,
	.num_resources = ARRAY_SIZE(bfin_sir0_resources),
	.resource = bfin_sir0_resources,
};
#endif
#endif

#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
#include <linux/input.h>
#include <linux/gpio_keys.h>

static struct gpio_keys_button bfin_gpio_keys_table[] = {
	{BTN_0, GPIO_PF7, 1, "gpio-keys: BTN0"},
	{BTN_1, GPIO_PF8, 1, "gpio-keys: BTN1"},
	{BTN_2, GPIO_PF9, 1, "gpio-keys: BTN2"},
	{BTN_3, GPIO_PF10, 1, "gpio-keys: BTN3"},
};

static struct gpio_keys_platform_data bfin_gpio_keys_data = {
	.buttons        = bfin_gpio_keys_table,
	.nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
};

static struct platform_device bfin_device_gpiokeys = {
	.name      = "gpio-keys",
	.dev = {
		.platform_data = &bfin_gpio_keys_data,
	},
};
#endif

#if IS_ENABLED(CONFIG_I2C_GPIO)
#include <linux/i2c-gpio.h>

static struct i2c_gpio_platform_data i2c_gpio_data = {
	.sda_pin		= GPIO_PF1,
	.scl_pin		= GPIO_PF0,
	.sda_is_open_drain	= 0,
	.scl_is_open_drain	= 0,
	.udelay			= 40,
};

static struct platform_device i2c_gpio_device = {
	.name		= "i2c-gpio",
	.id		= 0,
	.dev		= {
		.platform_data	= &i2c_gpio_data,
	},
};
#endif

static const unsigned int cclk_vlev_datasheet[] =
{
	VRPAIR(VLEV_085, 250000000),
	VRPAIR(VLEV_090, 376000000),
	VRPAIR(VLEV_095, 426000000),
	VRPAIR(VLEV_100, 426000000),
	VRPAIR(VLEV_105, 476000000),
	VRPAIR(VLEV_110, 476000000),
	VRPAIR(VLEV_115, 476000000),
	VRPAIR(VLEV_120, 600000000),
	VRPAIR(VLEV_125, 600000000),
	VRPAIR(VLEV_130, 600000000),
};

static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
	.tuple_tab = cclk_vlev_datasheet,
	.tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
	.vr_settling_time = 25 /* us */,
};

static struct platform_device bfin_dpmc = {
	.name = "bfin dpmc",
	.dev = {
		.platform_data = &bfin_dmpc_vreg_data,
	},
};

static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
#if IS_ENABLED(CONFIG_FB_BFIN_7393)
	{
		I2C_BOARD_INFO("bfin-adv7393", 0x2B),
	},
#endif
};

#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
static struct platform_device bfin_i2s = {
	.name = "bfin-i2s",
	.id = CONFIG_SND_BF5XX_SPORT_NUM,
	/* TODO: add platform data here */
};
#endif

#if IS_ENABLED(CONFIG_SND_BF5XX_AC97)
static struct platform_device bfin_ac97 = {
	.name = "bfin-ac97",
	.id = CONFIG_SND_BF5XX_SPORT_NUM,
	/* TODO: add platform data here */
};
#endif

static struct platform_device *ezkit_devices[] __initdata = {

	&bfin_dpmc,

#if IS_ENABLED(CONFIG_MTD_PHYSMAP)
	&ezkit_flash_device_a,
	&ezkit_flash_device_b,
#endif

#if IS_ENABLED(CONFIG_MTD_PLATRAM)
	&sram_device_a,
	&sram_device_b,
#endif

#if IS_ENABLED(CONFIG_SMC91X)
	&smc91x_device,
#endif

#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
	&bfin_spi0_device,
#endif

#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
	&rtc_device,
#endif

#if IS_ENABLED(CONFIG_SERIAL_BFIN)
#ifdef CONFIG_SERIAL_BFIN_UART0
	&bfin_uart0_device,
#endif
#endif

#if IS_ENABLED(CONFIG_BFIN_SIR)
#ifdef CONFIG_BFIN_SIR0
	&bfin_sir0_device,
#endif
#endif

#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
	&bfin_device_gpiokeys,
#endif

#if IS_ENABLED(CONFIG_I2C_GPIO)
	&i2c_gpio_device,
#endif

#if IS_ENABLED(CONFIG_SND_BF5XX_I2S)
	&bfin_i2s,
#endif

#if IS_ENABLED(CONFIG_SND_BF5XX_AC97)
	&bfin_ac97,
#endif
};

static int __init ezkit_init(void)
{
	printk(KERN_INFO "%s(): registering device resources\n", __func__);
	platform_add_devices(ezkit_devices, ARRAY_SIZE(ezkit_devices));
	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
	i2c_register_board_info(0, bfin_i2c_board_info,
				ARRAY_SIZE(bfin_i2c_board_info));
	return 0;
}

arch_initcall(ezkit_init);

static struct platform_device *ezkit_early_devices[] __initdata = {
#if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
#ifdef CONFIG_SERIAL_BFIN_UART0
	&bfin_uart0_device,
#endif
#endif
};

void __init native_machine_early_platform_add_devices(void)
{
	printk(KERN_INFO "register early platform devices\n");
	early_platform_add_devices(ezkit_early_devices,
		ARRAY_SIZE(ezkit_early_devices));
}