/* * 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/delay.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/spi/mmc_spi.h> #if IS_ENABLED(CONFIG_USB_ISP1362_HCD) #include <linux/usb/isp1362.h> #endif #include <linux/gpio.h> #include <linux/irq.h> #include <linux/i2c.h> #include <asm/dma.h> #include <asm/bfin5xx_spi.h> #include <asm/reboot.h> #include <asm/portmux.h> #include <asm/dpmc.h> /* * Name the Board for the /proc/cpuinfo */ const char bfin_board_name[] = "ADI BF533-STAMP"; #if IS_ENABLED(CONFIG_RTC_DRV_BFIN) static struct platform_device rtc_device = { .name = "rtc-bfin", .id = -1, }; #endif /* * 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 = 0x20300300, .end = 0x20300300 + 16, .flags = IORESOURCE_MEM, }, { .start = IRQ_PF7, .end = IRQ_PF7, .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_USB_NET2272) static struct resource net2272_bfin_resources[] = { { .start = 0x20300000, .end = 0x20300000 + 0x100, .flags = IORESOURCE_MEM, }, { .start = 1, .flags = IORESOURCE_BUS, }, { .start = IRQ_PF10, .end = IRQ_PF10, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, }, }; static struct platform_device net2272_bfin_device = { .name = "net2272", .id = -1, .num_resources = ARRAY_SIZE(net2272_bfin_resources), .resource = net2272_bfin_resources, }; #endif #if IS_ENABLED(CONFIG_MTD_BFIN_ASYNC) static struct mtd_partition stamp_partitions[] = { { .name = "bootloader(nor)", .size = 0x40000, .offset = 0, }, { .name = "linux kernel(nor)", .size = 0x180000, .offset = MTDPART_OFS_APPEND, }, { .name = "file system(nor)", .size = MTDPART_SIZ_FULL, .offset = MTDPART_OFS_APPEND, } }; static struct physmap_flash_data stamp_flash_data = { .width = 2, .parts = stamp_partitions, .nr_parts = ARRAY_SIZE(stamp_partitions), }; static struct resource stamp_flash_resource[] = { { .name = "cfi_probe", .start = 0x20000000, .end = 0x203fffff, .flags = IORESOURCE_MEM, }, { .start = 0x7BB07BB0, /* AMBCTL0 setting when accessing flash */ .end = 0x7BB07BB0, /* AMBCTL1 setting when accessing flash */ .flags = IORESOURCE_MEM, }, { .start = GPIO_PF0, .flags = IORESOURCE_IRQ, } }; static struct platform_device stamp_flash_device = { .name = "bfin-async-flash", .id = 0, .dev = { .platform_data = &stamp_flash_data, }, .num_resources = ARRAY_SIZE(stamp_flash_resource), .resource = stamp_flash_resource, }; #endif #if IS_ENABLED(CONFIG_MTD_M25P80) 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*/ }; #endif #if IS_ENABLED(CONFIG_MMC_SPI) #define MMC_SPI_CARD_DETECT_INT IRQ_PF5 static int bfin_mmc_spi_init(struct device *dev, irqreturn_t (*detect_int)(int, void *), void *data) { return request_irq(MMC_SPI_CARD_DETECT_INT, detect_int, IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "mmc-spi-detect", data); } static void bfin_mmc_spi_exit(struct device *dev, void *data) { free_irq(MMC_SPI_CARD_DETECT_INT, data); } static struct mmc_spi_platform_data bfin_mmc_spi_pdata = { .init = bfin_mmc_spi_init, .exit = bfin_mmc_spi_exit, .detect_delay = 100, /* msecs */ }; static struct bfin5xx_spi_chip mmc_spi_chip_info = { .enable_dma = 0, .pio_interrupt = 0, }; #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_AD1836) { .modalias = "ad1836", .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */ .bus_num = 0, .chip_select = 4, .platform_data = "ad1836", /* only includes chip name for the moment */ .mode = SPI_MODE_3, }, #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_MMC_SPI) { .modalias = "mmc_spi", .max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */ .bus_num = 0, .chip_select = 4, .platform_data = &bfin_mmc_spi_pdata, .controller_data = &mmc_spi_chip_info, .mode = SPI_MODE_3, }, #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_SERIAL_BFIN_SPORT) #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART static struct resource bfin_sport0_uart_resources[] = { { .start = SPORT0_TCR1, .end = SPORT0_MRCS3+4, .flags = IORESOURCE_MEM, }, { .start = IRQ_SPORT0_RX, .end = IRQ_SPORT0_RX+1, .flags = IORESOURCE_IRQ, }, { .start = IRQ_SPORT0_ERROR, .end = IRQ_SPORT0_ERROR, .flags = IORESOURCE_IRQ, }, }; static unsigned short bfin_sport0_peripherals[] = { P_SPORT0_TFS, P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS, P_SPORT0_DRPRI, P_SPORT0_RSCLK, 0 }; static struct platform_device bfin_sport0_uart_device = { .name = "bfin-sport-uart", .id = 0, .num_resources = ARRAY_SIZE(bfin_sport0_uart_resources), .resource = bfin_sport0_uart_resources, .dev = { .platform_data = &bfin_sport0_peripherals, /* Passed to driver */ }, }; #endif #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART static struct resource bfin_sport1_uart_resources[] = { { .start = SPORT1_TCR1, .end = SPORT1_MRCS3+4, .flags = IORESOURCE_MEM, }, { .start = IRQ_SPORT1_RX, .end = IRQ_SPORT1_RX+1, .flags = IORESOURCE_IRQ, }, { .start = IRQ_SPORT1_ERROR, .end = IRQ_SPORT1_ERROR, .flags = IORESOURCE_IRQ, }, }; static unsigned short bfin_sport1_peripherals[] = { P_SPORT1_TFS, P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS, P_SPORT1_DRPRI, P_SPORT1_RSCLK, 0 }; static struct platform_device bfin_sport1_uart_device = { .name = "bfin-sport-uart", .id = 1, .num_resources = ARRAY_SIZE(bfin_sport1_uart_resources), .resource = bfin_sport1_uart_resources, .dev = { .platform_data = &bfin_sport1_peripherals, /* Passed to driver */ }, }; #endif #endif #if IS_ENABLED(CONFIG_BFIN_SPORT) static struct resource bfin_sport0_resources[] = { { .start = SPORT0_TCR1, .end = SPORT0_MRCS3+4, .flags = IORESOURCE_MEM, }, { .start = IRQ_SPORT0_TX, .end = IRQ_SPORT0_TX+1, .flags = IORESOURCE_IRQ, }, { .start = IRQ_SPORT0_RX, .end = IRQ_SPORT0_RX+1, .flags = IORESOURCE_IRQ, }, { .start = IRQ_SPORT0_ERROR, .end = IRQ_SPORT0_ERROR, .flags = IORESOURCE_IRQ, }, { .start = CH_SPORT0_TX, .end = CH_SPORT0_TX, .flags = IORESOURCE_DMA, }, { .start = CH_SPORT0_RX, .end = CH_SPORT0_RX, .flags = IORESOURCE_DMA, }, }; static struct platform_device bfin_sport0_device = { .name = "bfin_sport_raw", .id = 0, .num_resources = ARRAY_SIZE(bfin_sport0_resources), .resource = bfin_sport0_resources, .dev = { .platform_data = &bfin_sport0_peripherals, }, }; #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_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 IS_ENABLED(CONFIG_I2C_GPIO) #include <linux/i2c-gpio.h> static struct i2c_gpio_platform_data i2c_gpio_data = { .sda_pin = GPIO_PF2, .scl_pin = GPIO_PF3, .sda_is_open_drain = 0, .scl_is_open_drain = 0, .udelay = 10, }; 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 IS_ENABLED(CONFIG_JOYSTICK_AD7142) { I2C_BOARD_INFO("ad7142_joystick", 0x2C), .irq = 39, }, #endif #if IS_ENABLED(CONFIG_BFIN_TWI_LCD) { I2C_BOARD_INFO("pcf8574_lcd", 0x22), }, #endif #if IS_ENABLED(CONFIG_INPUT_PCF8574) { I2C_BOARD_INFO("pcf8574_keypad", 0x27), .irq = 39, }, #endif #if IS_ENABLED(CONFIG_FB_BFIN_7393) { I2C_BOARD_INFO("bfin-adv7393", 0x2B), }, #endif #if IS_ENABLED(CONFIG_BFIN_TWI_LCD) { I2C_BOARD_INFO("ad5252", 0x2f), }, #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, }, }; #if IS_ENABLED(CONFIG_SND_BF5XX_I2S) || \ IS_ENABLED(CONFIG_SND_BF5XX_AC97) #include <asm/bfin_sport.h> #define SPORT_REQ(x) \ [x] = {P_SPORT##x##_TFS, P_SPORT##x##_DTPRI, P_SPORT##x##_TSCLK, \ P_SPORT##x##_RFS, P_SPORT##x##_DRPRI, P_SPORT##x##_RSCLK, 0} static const u16 bfin_snd_pin[][7] = { SPORT_REQ(0), SPORT_REQ(1), }; static struct bfin_snd_platform_data bfin_snd_data[] = { { .pin_req = &bfin_snd_pin[0][0], }, { .pin_req = &bfin_snd_pin[1][0], }, }; #define BFIN_SND_RES(x) \ [x] = { \ { \ .start = SPORT##x##_TCR1, \ .end = SPORT##x##_TCR1, \ .flags = IORESOURCE_MEM \ }, \ { \ .start = CH_SPORT##x##_RX, \ .end = CH_SPORT##x##_RX, \ .flags = IORESOURCE_DMA, \ }, \ { \ .start = CH_SPORT##x##_TX, \ .end = CH_SPORT##x##_TX, \ .flags = IORESOURCE_DMA, \ }, \ { \ .start = IRQ_SPORT##x##_ERROR, \ .end = IRQ_SPORT##x##_ERROR, \ .flags = IORESOURCE_IRQ, \ } \ } static struct resource bfin_snd_resources[][4] = { BFIN_SND_RES(0), BFIN_SND_RES(1), }; #endif #if IS_ENABLED(CONFIG_SND_BF5XX_I2S) static struct platform_device bfin_i2s_pcm = { .name = "bfin-i2s-pcm-audio", .id = -1, }; #endif #if IS_ENABLED(CONFIG_SND_BF5XX_AC97) static struct platform_device bfin_ac97_pcm = { .name = "bfin-ac97-pcm-audio", .id = -1, }; #endif #if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1836) static const char * const ad1836_link[] = { "bfin-i2s.0", "spi0.4", }; static struct platform_device bfin_ad1836_machine = { .name = "bfin-snd-ad1836", .id = -1, .dev = { .platform_data = (void *)ad1836_link, }, }; #endif #if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD73311) static const unsigned ad73311_gpio[] = { GPIO_PF4, }; static struct platform_device bfin_ad73311_machine = { .name = "bfin-snd-ad73311", .id = 1, .dev = { .platform_data = (void *)ad73311_gpio, }, }; #endif #if IS_ENABLED(CONFIG_SND_SOC_AD73311) static struct platform_device bfin_ad73311_codec_device = { .name = "ad73311", .id = -1, }; #endif #if IS_ENABLED(CONFIG_SND_SOC_AD74111) static struct platform_device bfin_ad74111_codec_device = { .name = "ad74111", .id = -1, }; #endif #if IS_ENABLED(CONFIG_SND_BF5XX_SOC_I2S) static struct platform_device bfin_i2s = { .name = "bfin-i2s", .id = CONFIG_SND_BF5XX_SPORT_NUM, .num_resources = ARRAY_SIZE(bfin_snd_resources[CONFIG_SND_BF5XX_SPORT_NUM]), .resource = bfin_snd_resources[CONFIG_SND_BF5XX_SPORT_NUM], .dev = { .platform_data = &bfin_snd_data[CONFIG_SND_BF5XX_SPORT_NUM], }, }; #endif #if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AC97) static struct platform_device bfin_ac97 = { .name = "bfin-ac97", .id = CONFIG_SND_BF5XX_SPORT_NUM, .num_resources = ARRAY_SIZE(bfin_snd_resources[CONFIG_SND_BF5XX_SPORT_NUM]), .resource = bfin_snd_resources[CONFIG_SND_BF5XX_SPORT_NUM], .dev = { .platform_data = &bfin_snd_data[CONFIG_SND_BF5XX_SPORT_NUM], }, }; #endif 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_USB_NET2272) &net2272_bfin_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 #if IS_ENABLED(CONFIG_MTD_BFIN_ASYNC) &stamp_flash_device, #endif #if IS_ENABLED(CONFIG_SND_BF5XX_I2S) &bfin_i2s_pcm, #endif #if IS_ENABLED(CONFIG_SND_BF5XX_AC97) &bfin_ac97_pcm, #endif #if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD1836) &bfin_ad1836_machine, #endif #if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AD73311) &bfin_ad73311_machine, #endif #if IS_ENABLED(CONFIG_SND_SOC_AD73311) &bfin_ad73311_codec_device, #endif #if IS_ENABLED(CONFIG_SND_SOC_AD74111) &bfin_ad74111_codec_device, #endif #if IS_ENABLED(CONFIG_SND_BF5XX_SOC_I2S) &bfin_i2s, #endif #if IS_ENABLED(CONFIG_SND_BF5XX_SOC_AC97) &bfin_ac97, #endif }; static int __init net2272_init(void) { #if IS_ENABLED(CONFIG_USB_NET2272) int ret; /* Set PF0 to 0, PF1 to 1 make /AMS3 work properly */ ret = gpio_request(GPIO_PF0, "net2272"); if (ret) return ret; ret = gpio_request(GPIO_PF1, "net2272"); if (ret) { gpio_free(GPIO_PF0); return ret; } ret = gpio_request(GPIO_PF11, "net2272"); if (ret) { gpio_free(GPIO_PF0); gpio_free(GPIO_PF1); return ret; } gpio_direction_output(GPIO_PF0, 0); gpio_direction_output(GPIO_PF1, 1); /* Reset the USB chip */ gpio_direction_output(GPIO_PF11, 0); mdelay(2); gpio_set_value(GPIO_PF11, 1); #endif return 0; } 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 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 if (net2272_init()) pr_warning("unable to configure net2272; it probably won't work\n"); spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info)); return 0; } arch_initcall(stamp_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)); } void native_machine_restart(char *cmd) { /* workaround pull up on cpld / flash pin not being strong enough */ gpio_request(GPIO_PF0, "flash_cpld"); gpio_direction_output(GPIO_PF0, 0); }