402 lines
9.7 KiB
C
402 lines
9.7 KiB
C
|
/*
|
||
|
|
* File: arch/blackfin/mach-bf533/blackstamp.c
|
||
|
|
* Based on: arch/blackfin/mach-bf533/stamp.c
|
||
|
|
* Author: Benjamin Matthews <bmat@lle.rochester.edu>
|
||
|
|
* Aidan Williams <aidan@nicta.com.au>
|
||
|
|
*
|
||
|
|
* Created: 2008
|
||
|
|
* Description: Board Info File for the BlackStamp
|
||
|
|
*
|
||
|
|
* Copyright 2005 National ICT Australia (NICTA)
|
||
|
|
* Copyright 2004-2008 Analog Devices Inc.
|
||
|
|
*
|
||
|
|
* Enter bugs at http://blackfin.uclinux.org/
|
||
|
|
*
|
||
|
|
* More info about the BlackStamp at:
|
||
|
|
* http://blackfin.uclinux.org/gf/project/blackstamp/
|
||
|
|
*
|
||
|
|
* 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/physmap.h>
|
||
|
|
#include <linux/spi/spi.h>
|
||
|
|
#include <linux/spi/flash.h>
|
||
|
|
#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[] = "BlackStamp";
|
||
|
|
|
||
|
|
#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
|
||
|
|
static struct platform_device rtc_device = {
|
||
|
|
.name = "rtc-bfin",
|
||
|
|
.id = -1,
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Driver needs to know address, irq and flag pin.
|
||
|
|
*/
|
||
|
|
#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
|
||
|
|
static struct resource smc91x_resources[] = {
|
||
|
|
{
|
||
|
|
.name = "smc91x-regs",
|
||
|
|
.start = 0x20300300,
|
||
|
|
.end = 0x20300300 + 16,
|
||
|
|
.flags = IORESOURCE_MEM,
|
||
|
|
}, {
|
||
|
|
.start = IRQ_PF3,
|
||
|
|
.end = IRQ_PF3,
|
||
|
|
.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,
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
|
||
|
|
static struct mtd_partition bfin_spi_flash_partitions[] = {
|
||
|
|
{
|
||
|
|
.name = "bootloader(spi)",
|
||
|
|
.size = 0x00040000,
|
||
|
|
.offset = 0,
|
||
|
|
.mask_flags = MTD_CAP_ROM
|
||
|
|
}, {
|
||
|
|
.name = "linux kernel(spi)",
|
||
|
|
.size = 0x180000,
|
||
|
|
.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*/
|
||
|
|
.bits_per_word = 8,
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE)
|
||
|
|
static struct bfin5xx_spi_chip spi_mmc_chip_info = {
|
||
|
|
.enable_dma = 1,
|
||
|
|
.bits_per_word = 8,
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
|
||
|
|
static struct bfin5xx_spi_chip spidev_chip_info = {
|
||
|
|
.enable_dma = 0,
|
||
|
|
.bits_per_word = 8,
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static struct spi_board_info bfin_spi_board_info[] __initdata = {
|
||
|
|
#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
|
||
|
|
{
|
||
|
|
/* the modalias must be the same as spi device driver name */
|
||
|
|
.modalias = "m25p80", /* Name of spi_driver for this device */
|
||
|
|
.max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */
|
||
|
|
.bus_num = 0, /* Framework bus number */
|
||
|
|
.chip_select = 2, /* Framework chip select. */
|
||
|
|
.platform_data = &bfin_spi_flash_data,
|
||
|
|
.controller_data = &spi_flash_chip_info,
|
||
|
|
.mode = SPI_MODE_3,
|
||
|
|
},
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_SPI_MMC) || defined(CONFIG_SPI_MMC_MODULE)
|
||
|
|
{
|
||
|
|
.modalias = "spi_mmc_dummy",
|
||
|
|
.max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */
|
||
|
|
.bus_num = 0,
|
||
|
|
.chip_select = 0,
|
||
|
|
.platform_data = NULL,
|
||
|
|
.controller_data = &spi_mmc_chip_info,
|
||
|
|
.mode = SPI_MODE_3,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
.modalias = "spi_mmc",
|
||
|
|
.max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */
|
||
|
|
.bus_num = 0,
|
||
|
|
.chip_select = CONFIG_SPI_MMC_CS_CHAN,
|
||
|
|
.platform_data = NULL,
|
||
|
|
.controller_data = &spi_mmc_chip_info,
|
||
|
|
.mode = SPI_MODE_3,
|
||
|
|
},
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
|
||
|
|
{
|
||
|
|
.modalias = "spidev",
|
||
|
|
.max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */
|
||
|
|
.bus_num = 0,
|
||
|
|
.chip_select = 7,
|
||
|
|
.controller_data = &spidev_chip_info,
|
||
|
|
},
|
||
|
|
#endif
|
||
|
|
};
|
||
|
|
|
||
|
|
#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
|
||
|
|
/* 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_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 defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
|
||
|
|
static struct resource bfin_uart_resources[] = {
|
||
|
|
{
|
||
|
|
.start = 0xFFC00400,
|
||
|
|
.end = 0xFFC004FF,
|
||
|
|
.flags = IORESOURCE_MEM,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct platform_device bfin_uart_device = {
|
||
|
|
.name = "bfin-uart",
|
||
|
|
.id = 1,
|
||
|
|
.num_resources = ARRAY_SIZE(bfin_uart_resources),
|
||
|
|
.resource = bfin_uart_resources,
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
|
||
|
|
static struct resource bfin_sir_resources[] = {
|
||
|
|
#ifdef CONFIG_BFIN_SIR0
|
||
|
|
{
|
||
|
|
.start = 0xFFC00400,
|
||
|
|
.end = 0xFFC004FF,
|
||
|
|
.flags = IORESOURCE_MEM,
|
||
|
|
},
|
||
|
|
#endif
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct platform_device bfin_sir_device = {
|
||
|
|
.name = "bfin_sir",
|
||
|
|
.id = 0,
|
||
|
|
.num_resources = ARRAY_SIZE(bfin_sir_resources),
|
||
|
|
.resource = bfin_sir_resources,
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
|
||
|
|
static struct platform_device bfin_sport0_uart_device = {
|
||
|
|
.name = "bfin-sport-uart",
|
||
|
|
.id = 0,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct platform_device bfin_sport1_uart_device = {
|
||
|
|
.name = "bfin-sport-uart",
|
||
|
|
.id = 1,
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
|
||
|
|
#include <linux/input.h>
|
||
|
|
#include <linux/gpio_keys.h>
|
||
|
|
|
||
|
|
static struct gpio_keys_button bfin_gpio_keys_table[] = {
|
||
|
|
{BTN_0, GPIO_PF4, 0, "gpio-keys: BTN0"},
|
||
|
|
{BTN_1, GPIO_PF5, 0, "gpio-keys: BTN1"},
|
||
|
|
{BTN_2, GPIO_PF6, 0, "gpio-keys: BTN2"},
|
||
|
|
}; /* Mapped to the first three PF Test Points */
|
||
|
|
|
||
|
|
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
|
||
|
|
|
||
|
|
static struct resource bfin_gpios_resources = {
|
||
|
|
.start = 0,
|
||
|
|
.end = MAX_BLACKFIN_GPIOS - 1,
|
||
|
|
.flags = IORESOURCE_IRQ,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct platform_device bfin_gpios_device = {
|
||
|
|
.name = "simple-gpio",
|
||
|
|
.id = -1,
|
||
|
|
.num_resources = 1,
|
||
|
|
.resource = &bfin_gpios_resources,
|
||
|
|
};
|
||
|
|
|
||
|
|
#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
|
||
|
|
#include <linux/i2c-gpio.h>
|
||
|
|
|
||
|
|
static struct i2c_gpio_platform_data i2c_gpio_data = {
|
||
|
|
.sda_pin = 8,
|
||
|
|
.scl_pin = 9,
|
||
|
|
.sda_is_open_drain = 0,
|
||
|
|
.scl_is_open_drain = 0,
|
||
|
|
.udelay = 40,
|
||
|
|
}; /* This hasn't actually been used these pins
|
||
|
|
* are (currently) free pins on the expansion connector */
|
||
|
|
|
||
|
|
static struct platform_device i2c_gpio_device = {
|
||
|
|
.name = "i2c-gpio",
|
||
|
|
.id = 0,
|
||
|
|
.dev = {
|
||
|
|
.platform_data = &i2c_gpio_data,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CONFIG_I2C_BOARDINFO
|
||
|
|
static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
|
||
|
|
};
|
||
|
|
#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 platform_device *stamp_devices[] __initdata = {
|
||
|
|
|
||
|
|
&bfin_dpmc,
|
||
|
|
|
||
|
|
#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
|
||
|
|
&rtc_device,
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
|
||
|
|
&smc91x_device,
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
|
||
|
|
&bfin_spi0_device,
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
|
||
|
|
&bfin_uart_device,
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
|
||
|
|
&bfin_sir_device,
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
|
||
|
|
&bfin_sport0_uart_device,
|
||
|
|
&bfin_sport1_uart_device,
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
|
||
|
|
&bfin_device_gpiokeys,
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
|
||
|
|
&i2c_gpio_device,
|
||
|
|
#endif
|
||
|
|
|
||
|
|
&bfin_gpios_device,
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init blackstamp_init(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
printk(KERN_INFO "%s(): registering device resources\n", __func__);
|
||
|
|
|
||
|
|
#ifdef CONFIG_I2C_BOARDINFO
|
||
|
|
i2c_register_board_info(0, bfin_i2c_board_info,
|
||
|
|
ARRAY_SIZE(bfin_i2c_board_info));
|
||
|
|
#endif
|
||
|
|
|
||
|
|
ret = platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
|
||
|
|
if (ret < 0)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
|
||
|
|
/* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
|
||
|
|
bfin_write_FIO_DIR(bfin_read_FIO_DIR() | PF0);
|
||
|
|
bfin_write_FIO_FLAG_S(PF0);
|
||
|
|
SSYNC();
|
||
|
|
#endif
|
||
|
|
|
||
|
|
spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
arch_initcall(blackstamp_init);
|