524 lines
12 KiB
C
524 lines
12 KiB
C
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/*
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* Board Info File for the BlackStamp
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*
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* Copyright 2004-2008 Analog Devices Inc.
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* 2008 Benjamin Matthews <bmat@lle.rochester.edu>
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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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* More info about the BlackStamp at:
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* http://blackfin.uclinux.org/gf/project/blackstamp/
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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/irq.h>
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#include <linux/gpio.h>
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#include <linux/i2c.h>
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#include <linux/gpio/machine.h>
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#include <asm/dma.h>
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#include <asm/bfin5xx_spi.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[] = "BlackStamp";
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#if IS_ENABLED(CONFIG_RTC_DRV_BFIN)
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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 IS_ENABLED(CONFIG_SMC91X)
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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_PF3,
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.end = IRQ_PF3,
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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 IS_ENABLED(CONFIG_MTD_M25P80)
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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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};
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#endif
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#if IS_ENABLED(CONFIG_MMC_SPI)
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static struct bfin5xx_spi_chip mmc_spi_chip_info = {
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.enable_dma = 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 IS_ENABLED(CONFIG_MTD_M25P80)
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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 = 20000000, /* 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. */
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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 IS_ENABLED(CONFIG_MMC_SPI)
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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 = 5,
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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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#if IS_ENABLED(CONFIG_SPI_SPIDEV)
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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 = 7,
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},
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#endif
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};
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#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
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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 IS_ENABLED(CONFIG_SERIAL_BFIN)
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#ifdef CONFIG_SERIAL_BFIN_UART0
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static struct resource bfin_uart0_resources[] = {
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{
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.start = BFIN_UART_THR,
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.end = BFIN_UART_GCTL+2,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = IRQ_UART0_TX,
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.end = IRQ_UART0_TX,
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = IRQ_UART0_RX,
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.end = IRQ_UART0_RX,
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = IRQ_UART0_ERROR,
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.end = IRQ_UART0_ERROR,
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = CH_UART0_TX,
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.end = CH_UART0_TX,
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.flags = IORESOURCE_DMA,
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},
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{
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.start = CH_UART0_RX,
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.end = CH_UART0_RX,
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.flags = IORESOURCE_DMA,
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},
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};
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static unsigned short bfin_uart0_peripherals[] = {
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P_UART0_TX, P_UART0_RX, 0
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};
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static struct platform_device bfin_uart0_device = {
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.name = "bfin-uart",
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.id = 0,
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.num_resources = ARRAY_SIZE(bfin_uart0_resources),
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.resource = bfin_uart0_resources,
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.dev = {
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.platform_data = &bfin_uart0_peripherals, /* Passed to driver */
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},
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};
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#endif
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#endif
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#if IS_ENABLED(CONFIG_BFIN_SIR)
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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,
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},
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{
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.start = CH_UART0_RX,
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.end = CH_UART0_RX+1,
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.flags = IORESOURCE_DMA,
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},
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};
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static struct platform_device bfin_sir0_device = {
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.name = "bfin_sir",
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.id = 0,
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.num_resources = ARRAY_SIZE(bfin_sir0_resources),
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.resource = bfin_sir0_resources,
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};
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#endif
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#endif
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#if IS_ENABLED(CONFIG_SERIAL_BFIN_SPORT)
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#ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
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static struct resource bfin_sport0_uart_resources[] = {
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{
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.start = SPORT0_TCR1,
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.end = SPORT0_MRCS3+4,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = IRQ_SPORT0_RX,
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.end = IRQ_SPORT0_RX+1,
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = IRQ_SPORT0_ERROR,
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.end = IRQ_SPORT0_ERROR,
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.flags = IORESOURCE_IRQ,
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},
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};
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static unsigned short bfin_sport0_peripherals[] = {
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P_SPORT0_TFS, P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
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P_SPORT0_DRPRI, P_SPORT0_RSCLK, 0
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};
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static struct platform_device bfin_sport0_uart_device = {
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.name = "bfin-sport-uart",
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.id = 0,
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.num_resources = ARRAY_SIZE(bfin_sport0_uart_resources),
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.resource = bfin_sport0_uart_resources,
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.dev = {
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.platform_data = &bfin_sport0_peripherals, /* Passed to driver */
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},
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};
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#endif
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#ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
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static struct resource bfin_sport1_uart_resources[] = {
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{
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.start = SPORT1_TCR1,
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.end = SPORT1_MRCS3+4,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = IRQ_SPORT1_RX,
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.end = IRQ_SPORT1_RX+1,
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.flags = IORESOURCE_IRQ,
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},
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{
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.start = IRQ_SPORT1_ERROR,
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.end = IRQ_SPORT1_ERROR,
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.flags = IORESOURCE_IRQ,
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},
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};
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static unsigned short bfin_sport1_peripherals[] = {
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P_SPORT1_TFS, P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS,
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P_SPORT1_DRPRI, P_SPORT1_RSCLK, 0
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};
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static struct platform_device bfin_sport1_uart_device = {
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.name = "bfin-sport-uart",
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.id = 1,
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.num_resources = ARRAY_SIZE(bfin_sport1_uart_resources),
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.resource = bfin_sport1_uart_resources,
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.dev = {
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.platform_data = &bfin_sport1_peripherals, /* Passed to driver */
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},
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};
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#endif
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#endif
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#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
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#include <linux/input.h>
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#include <linux/gpio_keys.h>
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static struct gpio_keys_button bfin_gpio_keys_table[] = {
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{BTN_0, GPIO_PF4, 0, "gpio-keys: BTN0"},
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{BTN_1, GPIO_PF5, 0, "gpio-keys: BTN1"},
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{BTN_2, GPIO_PF6, 0, "gpio-keys: BTN2"},
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}; /* Mapped to the first three PF Test Points */
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static struct gpio_keys_platform_data bfin_gpio_keys_data = {
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.buttons = bfin_gpio_keys_table,
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.nbuttons = ARRAY_SIZE(bfin_gpio_keys_table),
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};
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static struct platform_device bfin_device_gpiokeys = {
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.name = "gpio-keys",
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.dev = {
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.platform_data = &bfin_gpio_keys_data,
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},
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};
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#endif
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#if IS_ENABLED(CONFIG_I2C_GPIO)
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#include <linux/i2c-gpio.h>
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static struct gpiod_lookup_table bfin_i2c_gpiod_table = {
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.dev_id = "i2c-gpio",
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|
|
.table = {
|
||
|
|
GPIO_LOOKUP_IDX("BFIN-GPIO", GPIO_PF8, NULL, 0,
|
||
|
|
GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
|
||
|
|
GPIO_LOOKUP_IDX("BFIN-GPIO", GPIO_PF9, NULL, 1,
|
||
|
|
GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct i2c_gpio_platform_data i2c_gpio_data = {
|
||
|
|
.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
|
||
|
|
|
||
|
|
static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
|
||
|
|
};
|
||
|
|
|
||
|
|
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 IS_ENABLED(CONFIG_RTC_DRV_BFIN)
|
||
|
|
&rtc_device,
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if IS_ENABLED(CONFIG_SMC91X)
|
||
|
|
&smc91x_device,
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#if IS_ENABLED(CONFIG_SPI_BFIN5XX)
|
||
|
|
&bfin_spi0_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_SERIAL_BFIN_SPORT)
|
||
|
|
#ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
|
||
|
|
&bfin_sport0_uart_device,
|
||
|
|
#endif
|
||
|
|
#ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
|
||
|
|
&bfin_sport1_uart_device,
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if IS_ENABLED(CONFIG_KEYBOARD_GPIO)
|
||
|
|
&bfin_device_gpiokeys,
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if IS_ENABLED(CONFIG_I2C_GPIO)
|
||
|
|
&i2c_gpio_device,
|
||
|
|
#endif
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init blackstamp_init(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
printk(KERN_INFO "%s(): registering device resources\n", __func__);
|
||
|
|
#if IS_ENABLED(CONFIG_I2C_GPIO)
|
||
|
|
gpiod_add_lookup_table(&bfin_i2c_gpiod_table);
|
||
|
|
#endif
|
||
|
|
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 IS_ENABLED(CONFIG_SMC91X)
|
||
|
|
/*
|
||
|
|
* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC.
|
||
|
|
* the bfin-async-map driver takes care of flipping between
|
||
|
|
* flash and ethernet when necessary.
|
||
|
|
*/
|
||
|
|
ret = gpio_request(GPIO_PF0, "enet_cpld");
|
||
|
|
if (!ret) {
|
||
|
|
gpio_direction_output(GPIO_PF0, 1);
|
||
|
|
gpio_free(GPIO_PF0);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
arch_initcall(blackstamp_init);
|
||
|
|
|
||
|
|
static struct platform_device *stamp_early_devices[] __initdata = {
|
||
|
|
#if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
|
||
|
|
#ifdef CONFIG_SERIAL_BFIN_UART0
|
||
|
|
&bfin_uart0_device,
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(CONFIG_SERIAL_BFIN_SPORT_CONSOLE)
|
||
|
|
#ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
|
||
|
|
&bfin_sport0_uart_device,
|
||
|
|
#endif
|
||
|
|
#ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
|
||
|
|
&bfin_sport1_uart_device,
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
};
|
||
|
|
|
||
|
|
void __init native_machine_early_platform_add_devices(void)
|
||
|
|
{
|
||
|
|
printk(KERN_INFO "register early platform devices\n");
|
||
|
|
early_platform_add_devices(stamp_early_devices,
|
||
|
|
ARRAY_SIZE(stamp_early_devices));
|
||
|
|
}
|