564 lines
14 KiB
C
564 lines
14 KiB
C
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/*
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* Copyright 2004-2009 Analog Devices Inc.
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* 2005 National ICT Australia (NICTA)
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* Aidan Williams <aidan@nicta.com.au>
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*
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* Licensed under the GPL-2 or later.
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*/
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#include <linux/device.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/flash.h>
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#include <linux/spi/mmc_spi.h>
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#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
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#include <linux/usb/isp1362.h>
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#endif
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#include <linux/irq.h>
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#include <linux/i2c.h>
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#include <asm/dma.h>
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#include <asm/bfin5xx_spi.h>
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#include <asm/reboot.h>
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#include <asm/portmux.h>
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#include <asm/dpmc.h>
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/*
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* Name the Board for the /proc/cpuinfo
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*/
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const char bfin_board_name[] = "ADI BF533-STAMP";
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#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
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static struct platform_device rtc_device = {
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.name = "rtc-bfin",
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.id = -1,
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};
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#endif
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/*
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* Driver needs to know address, irq and flag pin.
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*/
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#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
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#include <linux/smc91x.h>
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static struct smc91x_platdata smc91x_info = {
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.flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
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.leda = RPC_LED_100_10,
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.ledb = RPC_LED_TX_RX,
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};
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static struct resource smc91x_resources[] = {
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{
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.name = "smc91x-regs",
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.start = 0x20300300,
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.end = 0x20300300 + 16,
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.flags = IORESOURCE_MEM,
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}, {
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.start = IRQ_PF7,
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.end = IRQ_PF7,
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
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},
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};
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static struct platform_device smc91x_device = {
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.name = "smc91x",
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.id = 0,
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.num_resources = ARRAY_SIZE(smc91x_resources),
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.resource = smc91x_resources,
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.dev = {
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.platform_data = &smc91x_info,
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},
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};
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#endif
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#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
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static struct resource net2272_bfin_resources[] = {
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{
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.start = 0x20300000,
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.end = 0x20300000 + 0x100,
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.flags = IORESOURCE_MEM,
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}, {
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.start = IRQ_PF10,
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.end = IRQ_PF10,
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
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},
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};
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static struct platform_device net2272_bfin_device = {
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.name = "net2272",
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.id = -1,
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.num_resources = ARRAY_SIZE(net2272_bfin_resources),
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.resource = net2272_bfin_resources,
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};
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#endif
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#if defined(CONFIG_MTD_BFIN_ASYNC) || defined(CONFIG_MTD_BFIN_ASYNC_MODULE)
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static struct mtd_partition stamp_partitions[] = {
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{
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.name = "bootloader(nor)",
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.size = 0x40000,
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.offset = 0,
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}, {
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.name = "linux kernel(nor)",
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.size = 0x180000,
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.offset = MTDPART_OFS_APPEND,
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}, {
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.name = "file system(nor)",
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.size = MTDPART_SIZ_FULL,
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.offset = MTDPART_OFS_APPEND,
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}
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};
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static struct physmap_flash_data stamp_flash_data = {
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.width = 2,
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.parts = stamp_partitions,
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.nr_parts = ARRAY_SIZE(stamp_partitions),
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};
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static struct resource stamp_flash_resource[] = {
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{
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.name = "cfi_probe",
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.start = 0x20000000,
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.end = 0x203fffff,
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.flags = IORESOURCE_MEM,
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}, {
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.start = 0x7BB07BB0, /* AMBCTL0 setting when accessing flash */
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.end = 0x7BB07BB0, /* AMBCTL1 setting when accessing flash */
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.flags = IORESOURCE_MEM,
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}, {
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.start = GPIO_PF0,
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.flags = IORESOURCE_IRQ,
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}
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};
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static struct platform_device stamp_flash_device = {
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.name = "bfin-async-flash",
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.id = 0,
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.dev = {
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.platform_data = &stamp_flash_data,
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},
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.num_resources = ARRAY_SIZE(stamp_flash_resource),
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.resource = stamp_flash_resource,
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};
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#endif
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#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
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static struct mtd_partition bfin_spi_flash_partitions[] = {
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{
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.name = "bootloader(spi)",
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.size = 0x00040000,
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.offset = 0,
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.mask_flags = MTD_CAP_ROM
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}, {
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.name = "linux kernel(spi)",
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.size = 0x180000,
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.offset = MTDPART_OFS_APPEND,
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}, {
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.name = "file system(spi)",
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.size = MTDPART_SIZ_FULL,
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.offset = MTDPART_OFS_APPEND,
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}
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};
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static struct flash_platform_data bfin_spi_flash_data = {
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.name = "m25p80",
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.parts = bfin_spi_flash_partitions,
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.nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
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.type = "m25p64",
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};
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/* SPI flash chip (m25p64) */
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static struct bfin5xx_spi_chip spi_flash_chip_info = {
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.enable_dma = 0, /* use dma transfer with this chip*/
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.bits_per_word = 8,
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};
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#endif
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#if defined(CONFIG_BFIN_SPI_ADC) || defined(CONFIG_BFIN_SPI_ADC_MODULE)
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/* SPI ADC chip */
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static struct bfin5xx_spi_chip spi_adc_chip_info = {
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.enable_dma = 1, /* use dma transfer with this chip*/
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.bits_per_word = 16,
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};
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#endif
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#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE)
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static struct bfin5xx_spi_chip ad1836_spi_chip_info = {
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.enable_dma = 0,
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.bits_per_word = 16,
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};
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#endif
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#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
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static struct bfin5xx_spi_chip spidev_chip_info = {
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.enable_dma = 0,
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.bits_per_word = 8,
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};
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#endif
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#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
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#define MMC_SPI_CARD_DETECT_INT IRQ_PF5
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static int bfin_mmc_spi_init(struct device *dev,
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irqreturn_t (*detect_int)(int, void *), void *data)
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{
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return request_irq(MMC_SPI_CARD_DETECT_INT, detect_int,
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IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
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"mmc-spi-detect", data);
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}
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static void bfin_mmc_spi_exit(struct device *dev, void *data)
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{
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free_irq(MMC_SPI_CARD_DETECT_INT, data);
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}
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static struct mmc_spi_platform_data bfin_mmc_spi_pdata = {
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.init = bfin_mmc_spi_init,
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.exit = bfin_mmc_spi_exit,
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.detect_delay = 100, /* msecs */
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};
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static struct bfin5xx_spi_chip mmc_spi_chip_info = {
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.enable_dma = 0,
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.bits_per_word = 8,
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.pio_interrupt = 0,
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};
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#endif
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static struct spi_board_info bfin_spi_board_info[] __initdata = {
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#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
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{
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/* the modalias must be the same as spi device driver name */
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.modalias = "m25p80", /* Name of spi_driver for this device */
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.max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */
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.bus_num = 0, /* Framework bus number */
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.chip_select = 2, /* Framework chip select. On STAMP537 it is SPISSEL2*/
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.platform_data = &bfin_spi_flash_data,
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.controller_data = &spi_flash_chip_info,
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.mode = SPI_MODE_3,
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},
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#endif
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#if defined(CONFIG_BFIN_SPI_ADC) || defined(CONFIG_BFIN_SPI_ADC_MODULE)
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{
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.modalias = "bfin_spi_adc", /* Name of spi_driver for this device */
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.max_speed_hz = 6250000, /* max spi clock (SCK) speed in HZ */
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.bus_num = 0, /* Framework bus number */
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.chip_select = 1, /* Framework chip select. */
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.platform_data = NULL, /* No spi_driver specific config */
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.controller_data = &spi_adc_chip_info,
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},
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#endif
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#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE)
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{
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.modalias = "ad1836",
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.max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */
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.bus_num = 0,
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.chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT,
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.controller_data = &ad1836_spi_chip_info,
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},
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#endif
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#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
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{
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.modalias = "spidev",
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.max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */
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.bus_num = 0,
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.chip_select = 1,
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.controller_data = &spidev_chip_info,
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},
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#endif
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#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
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{
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.modalias = "mmc_spi",
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.max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */
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.bus_num = 0,
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.chip_select = 4,
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.platform_data = &bfin_mmc_spi_pdata,
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.controller_data = &mmc_spi_chip_info,
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.mode = SPI_MODE_3,
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},
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#endif
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};
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#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
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/* SPI (0) */
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static struct resource bfin_spi0_resource[] = {
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[0] = {
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.start = SPI0_REGBASE,
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.end = SPI0_REGBASE + 0xFF,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = CH_SPI,
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.end = CH_SPI,
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.flags = IORESOURCE_DMA,
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},
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[2] = {
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.start = IRQ_SPI,
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.end = IRQ_SPI,
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.flags = IORESOURCE_IRQ,
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}
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};
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/* SPI controller data */
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static struct bfin5xx_spi_master bfin_spi0_info = {
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.num_chipselect = 8,
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.enable_dma = 1, /* master has the ability to do dma transfer */
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.pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
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};
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static struct platform_device bfin_spi0_device = {
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.name = "bfin-spi",
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.id = 0, /* Bus number */
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.num_resources = ARRAY_SIZE(bfin_spi0_resource),
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.resource = bfin_spi0_resource,
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.dev = {
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.platform_data = &bfin_spi0_info, /* Passed to driver */
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},
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};
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#endif /* spi master and devices */
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#if defined(CONFIG_FB_BF537_LQ035) || defined(CONFIG_FB_BF537_LQ035_MODULE)
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static struct platform_device bfin_fb_device = {
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.name = "bf537-fb",
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};
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#endif
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#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
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static struct resource bfin_uart_resources[] = {
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{
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.start = 0xFFC00400,
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.end = 0xFFC004FF,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device bfin_uart_device = {
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.name = "bfin-uart",
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.id = 1,
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.num_resources = ARRAY_SIZE(bfin_uart_resources),
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.resource = bfin_uart_resources,
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};
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#endif
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#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
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#ifdef CONFIG_BFIN_SIR0
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static struct resource bfin_sir0_resources[] = {
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{
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.start = 0xFFC00400,
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.end = 0xFFC004FF,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = IRQ_UART0_RX,
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.end = IRQ_UART0_RX+1,
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.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 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_PF5, 0, "gpio-keys: BTN0"},
|
||
|
|
{BTN_1, GPIO_PF6, 0, "gpio-keys: BTN1"},
|
||
|
|
{BTN_2, GPIO_PF8, 0, "gpio-keys: BTN2"},
|
||
|
|
};
|
||
|
|
|
||
|
|
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 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 = 2,
|
||
|
|
.scl_pin = 3,
|
||
|
|
.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 struct i2c_board_info __initdata bfin_i2c_board_info[] = {
|
||
|
|
#if defined(CONFIG_JOYSTICK_AD7142) || defined(CONFIG_JOYSTICK_AD7142_MODULE)
|
||
|
|
{
|
||
|
|
I2C_BOARD_INFO("ad7142_joystick", 0x2C),
|
||
|
|
.irq = 39,
|
||
|
|
},
|
||
|
|
#endif
|
||
|
|
#if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
|
||
|
|
{
|
||
|
|
I2C_BOARD_INFO("pcf8574_lcd", 0x22),
|
||
|
|
},
|
||
|
|
#endif
|
||
|
|
#if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
|
||
|
|
{
|
||
|
|
I2C_BOARD_INFO("pcf8574_keypad", 0x27),
|
||
|
|
.irq = 39,
|
||
|
|
},
|
||
|
|
#endif
|
||
|
|
#if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
|
||
|
|
{
|
||
|
|
I2C_BOARD_INFO("bfin-adv7393", 0x2B),
|
||
|
|
},
|
||
|
|
#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_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
|
||
|
|
&net2272_bfin_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)
|
||
|
|
#ifdef CONFIG_BFIN_SIR0
|
||
|
|
&bfin_sir0_device,
|
||
|
|
#endif
|
||
|
|
#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
|
||
|
|
|
||
|
|
#if defined(CONFIG_MTD_BFIN_ASYNC) || defined(CONFIG_MTD_BFIN_ASYNC_MODULE)
|
||
|
|
&stamp_flash_device,
|
||
|
|
#endif
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init stamp_init(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
printk(KERN_INFO "%s(): registering device resources\n", __func__);
|
||
|
|
|
||
|
|
i2c_register_board_info(0, bfin_i2c_board_info,
|
||
|
|
ARRAY_SIZE(bfin_i2c_board_info));
|
||
|
|
|
||
|
|
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(stamp_init);
|
||
|
|
|
||
|
|
void native_machine_restart(char *cmd)
|
||
|
|
{
|
||
|
|
/* workaround pull up on cpld / flash pin not being strong enough */
|
||
|
|
bfin_write_FIO_INEN(~PF0);
|
||
|
|
bfin_write_FIO_DIR(PF0);
|
||
|
|
bfin_write_FIO_FLAG_C(PF0);
|
||
|
|
}
|