/* * TI DA830/OMAP L137 EVM board * * Author: Mark A. Greer <mgreer@mvista.com> * Derived from: arch/arm/mach-davinci/board-dm644x-evm.c * * 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under * the terms of the GNU General Public License version 2. This program * is licensed "as is" without any warranty of any kind, whether express * or implied. */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/console.h> #include <linux/interrupt.h> #include <linux/gpio.h> #include <linux/platform_device.h> #include <linux/i2c.h> #include <linux/i2c/pcf857x.h> #include <linux/i2c/at24.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <linux/spi/spi.h> #include <linux/spi/flash.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <mach/cp_intc.h> #include <mach/mux.h> #include <linux/platform_data/mtd-davinci.h> #include <mach/da8xx.h> #include <linux/platform_data/usb-davinci.h> #include <linux/platform_data/mtd-davinci-aemif.h> #include <linux/platform_data/spi-davinci.h> #define DA830_EVM_PHY_ID "" /* * USB1 VBUS is controlled by GPIO1[15], over-current is reported on GPIO2[4]. */ #define ON_BD_USB_DRV GPIO_TO_PIN(1, 15) #define ON_BD_USB_OVC GPIO_TO_PIN(2, 4) static const short da830_evm_usb11_pins[] = { DA830_GPIO1_15, DA830_GPIO2_4, -1 }; static da8xx_ocic_handler_t da830_evm_usb_ocic_handler; static int da830_evm_usb_set_power(unsigned port, int on) { gpio_set_value(ON_BD_USB_DRV, on); return 0; } static int da830_evm_usb_get_power(unsigned port) { return gpio_get_value(ON_BD_USB_DRV); } static int da830_evm_usb_get_oci(unsigned port) { return !gpio_get_value(ON_BD_USB_OVC); } static irqreturn_t da830_evm_usb_ocic_irq(int, void *); static int da830_evm_usb_ocic_notify(da8xx_ocic_handler_t handler) { int irq = gpio_to_irq(ON_BD_USB_OVC); int error = 0; if (handler != NULL) { da830_evm_usb_ocic_handler = handler; error = request_irq(irq, da830_evm_usb_ocic_irq, IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "OHCI over-current indicator", NULL); if (error) printk(KERN_ERR "%s: could not request IRQ to watch " "over-current indicator changes\n", __func__); } else free_irq(irq, NULL); return error; } static struct da8xx_ohci_root_hub da830_evm_usb11_pdata = { .set_power = da830_evm_usb_set_power, .get_power = da830_evm_usb_get_power, .get_oci = da830_evm_usb_get_oci, .ocic_notify = da830_evm_usb_ocic_notify, /* TPS2065 switch @ 5V */ .potpgt = (3 + 1) / 2, /* 3 ms max */ }; static irqreturn_t da830_evm_usb_ocic_irq(int irq, void *dev_id) { da830_evm_usb_ocic_handler(&da830_evm_usb11_pdata, 1); return IRQ_HANDLED; } static __init void da830_evm_usb_init(void) { u32 cfgchip2; int ret; /* * Set up USB clock/mode in the CFGCHIP2 register. * FYI: CFGCHIP2 is 0x0000ef00 initially. */ cfgchip2 = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG)); /* USB2.0 PHY reference clock is 24 MHz */ cfgchip2 &= ~CFGCHIP2_REFFREQ; cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ; /* * Select internal reference clock for USB 2.0 PHY * and use it as a clock source for USB 1.1 PHY * (this is the default setting anyway). */ cfgchip2 &= ~CFGCHIP2_USB1PHYCLKMUX; cfgchip2 |= CFGCHIP2_USB2PHYCLKMUX; /* * We have to override VBUS/ID signals when MUSB is configured into the * host-only mode -- ID pin will float if no cable is connected, so the * controller won't be able to drive VBUS thinking that it's a B-device. * Otherwise, we want to use the OTG mode and enable VBUS comparators. */ cfgchip2 &= ~CFGCHIP2_OTGMODE; #ifdef CONFIG_USB_MUSB_HOST cfgchip2 |= CFGCHIP2_FORCE_HOST; #else cfgchip2 |= CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN; #endif __raw_writel(cfgchip2, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP2_REG)); /* USB_REFCLKIN is not used. */ ret = davinci_cfg_reg(DA830_USB0_DRVVBUS); if (ret) pr_warning("%s: USB 2.0 PinMux setup failed: %d\n", __func__, ret); else { /* * TPS2065 switch @ 5V supplies 1 A (sustains 1.5 A), * with the power on to power good time of 3 ms. */ ret = da8xx_register_usb20(1000, 3); if (ret) pr_warning("%s: USB 2.0 registration failed: %d\n", __func__, ret); } ret = davinci_cfg_reg_list(da830_evm_usb11_pins); if (ret) { pr_warning("%s: USB 1.1 PinMux setup failed: %d\n", __func__, ret); return; } ret = gpio_request(ON_BD_USB_DRV, "ON_BD_USB_DRV"); if (ret) { printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port " "power control: %d\n", __func__, ret); return; } gpio_direction_output(ON_BD_USB_DRV, 0); ret = gpio_request(ON_BD_USB_OVC, "ON_BD_USB_OVC"); if (ret) { printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port " "over-current indicator: %d\n", __func__, ret); return; } gpio_direction_input(ON_BD_USB_OVC); ret = da8xx_register_usb11(&da830_evm_usb11_pdata); if (ret) pr_warning("%s: USB 1.1 registration failed: %d\n", __func__, ret); } static struct davinci_uart_config da830_evm_uart_config __initdata = { .enabled_uarts = 0x7, }; static const short da830_evm_mcasp1_pins[] = { DA830_AHCLKX1, DA830_ACLKX1, DA830_AFSX1, DA830_AHCLKR1, DA830_AFSR1, DA830_AMUTE1, DA830_AXR1_0, DA830_AXR1_1, DA830_AXR1_2, DA830_AXR1_5, DA830_ACLKR1, DA830_AXR1_6, DA830_AXR1_7, DA830_AXR1_8, DA830_AXR1_10, DA830_AXR1_11, -1 }; static u8 da830_iis_serializer_direction[] = { RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, TX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, }; static struct snd_platform_data da830_evm_snd_data = { .tx_dma_offset = 0x2000, .rx_dma_offset = 0x2000, .op_mode = DAVINCI_MCASP_IIS_MODE, .num_serializer = ARRAY_SIZE(da830_iis_serializer_direction), .tdm_slots = 2, .serial_dir = da830_iis_serializer_direction, .asp_chan_q = EVENTQ_0, .version = MCASP_VERSION_2, .txnumevt = 1, .rxnumevt = 1, }; /* * GPIO2[1] is used as MMC_SD_WP and GPIO2[2] as MMC_SD_INS. */ static const short da830_evm_mmc_sd_pins[] = { DA830_MMCSD_DAT_0, DA830_MMCSD_DAT_1, DA830_MMCSD_DAT_2, DA830_MMCSD_DAT_3, DA830_MMCSD_DAT_4, DA830_MMCSD_DAT_5, DA830_MMCSD_DAT_6, DA830_MMCSD_DAT_7, DA830_MMCSD_CLK, DA830_MMCSD_CMD, DA830_GPIO2_1, DA830_GPIO2_2, -1 }; #define DA830_MMCSD_WP_PIN GPIO_TO_PIN(2, 1) #define DA830_MMCSD_CD_PIN GPIO_TO_PIN(2, 2) static int da830_evm_mmc_get_ro(int index) { return gpio_get_value(DA830_MMCSD_WP_PIN); } static int da830_evm_mmc_get_cd(int index) { return !gpio_get_value(DA830_MMCSD_CD_PIN); } static struct davinci_mmc_config da830_evm_mmc_config = { .get_ro = da830_evm_mmc_get_ro, .get_cd = da830_evm_mmc_get_cd, .wires = 8, .max_freq = 50000000, .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED, }; static inline void da830_evm_init_mmc(void) { int ret; ret = davinci_cfg_reg_list(da830_evm_mmc_sd_pins); if (ret) { pr_warning("da830_evm_init: mmc/sd mux setup failed: %d\n", ret); return; } ret = gpio_request(DA830_MMCSD_WP_PIN, "MMC WP"); if (ret) { pr_warning("da830_evm_init: can not open GPIO %d\n", DA830_MMCSD_WP_PIN); return; } gpio_direction_input(DA830_MMCSD_WP_PIN); ret = gpio_request(DA830_MMCSD_CD_PIN, "MMC CD\n"); if (ret) { pr_warning("da830_evm_init: can not open GPIO %d\n", DA830_MMCSD_CD_PIN); return; } gpio_direction_input(DA830_MMCSD_CD_PIN); ret = da8xx_register_mmcsd0(&da830_evm_mmc_config); if (ret) { pr_warning("da830_evm_init: mmc/sd registration failed: %d\n", ret); gpio_free(DA830_MMCSD_WP_PIN); } } /* * UI board NAND/NOR flashes only use 8-bit data bus. */ static const short da830_evm_emif25_pins[] = { DA830_EMA_D_0, DA830_EMA_D_1, DA830_EMA_D_2, DA830_EMA_D_3, DA830_EMA_D_4, DA830_EMA_D_5, DA830_EMA_D_6, DA830_EMA_D_7, DA830_EMA_A_0, DA830_EMA_A_1, DA830_EMA_A_2, DA830_EMA_A_3, DA830_EMA_A_4, DA830_EMA_A_5, DA830_EMA_A_6, DA830_EMA_A_7, DA830_EMA_A_8, DA830_EMA_A_9, DA830_EMA_A_10, DA830_EMA_A_11, DA830_EMA_A_12, DA830_EMA_BA_0, DA830_EMA_BA_1, DA830_NEMA_WE, DA830_NEMA_CS_2, DA830_NEMA_CS_3, DA830_NEMA_OE, DA830_EMA_WAIT_0, -1 }; #define HAS_MMC IS_ENABLED(CONFIG_MMC_DAVINCI) #ifdef CONFIG_DA830_UI_NAND static struct mtd_partition da830_evm_nand_partitions[] = { /* bootloader (U-Boot, etc) in first sector */ [0] = { .name = "bootloader", .offset = 0, .size = SZ_128K, .mask_flags = MTD_WRITEABLE, /* force read-only */ }, /* bootloader params in the next sector */ [1] = { .name = "params", .offset = MTDPART_OFS_APPEND, .size = SZ_128K, .mask_flags = MTD_WRITEABLE, /* force read-only */ }, /* kernel */ [2] = { .name = "kernel", .offset = MTDPART_OFS_APPEND, .size = SZ_2M, .mask_flags = 0, }, /* file system */ [3] = { .name = "filesystem", .offset = MTDPART_OFS_APPEND, .size = MTDPART_SIZ_FULL, .mask_flags = 0, } }; /* flash bbt decriptors */ static uint8_t da830_evm_nand_bbt_pattern[] = { 'B', 'b', 't', '0' }; static uint8_t da830_evm_nand_mirror_pattern[] = { '1', 't', 'b', 'B' }; static struct nand_bbt_descr da830_evm_nand_bbt_main_descr = { .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP, .offs = 2, .len = 4, .veroffs = 16, .maxblocks = 4, .pattern = da830_evm_nand_bbt_pattern }; static struct nand_bbt_descr da830_evm_nand_bbt_mirror_descr = { .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP, .offs = 2, .len = 4, .veroffs = 16, .maxblocks = 4, .pattern = da830_evm_nand_mirror_pattern }; static struct davinci_aemif_timing da830_evm_nandflash_timing = { .wsetup = 24, .wstrobe = 21, .whold = 14, .rsetup = 19, .rstrobe = 50, .rhold = 0, .ta = 20, }; static struct davinci_nand_pdata da830_evm_nand_pdata = { .parts = da830_evm_nand_partitions, .nr_parts = ARRAY_SIZE(da830_evm_nand_partitions), .ecc_mode = NAND_ECC_HW, .ecc_bits = 4, .bbt_options = NAND_BBT_USE_FLASH, .bbt_td = &da830_evm_nand_bbt_main_descr, .bbt_md = &da830_evm_nand_bbt_mirror_descr, .timing = &da830_evm_nandflash_timing, }; static struct resource da830_evm_nand_resources[] = { [0] = { /* First memory resource is NAND I/O window */ .start = DA8XX_AEMIF_CS3_BASE, .end = DA8XX_AEMIF_CS3_BASE + PAGE_SIZE - 1, .flags = IORESOURCE_MEM, }, [1] = { /* Second memory resource is AEMIF control registers */ .start = DA8XX_AEMIF_CTL_BASE, .end = DA8XX_AEMIF_CTL_BASE + SZ_32K - 1, .flags = IORESOURCE_MEM, }, }; static struct platform_device da830_evm_nand_device = { .name = "davinci_nand", .id = 1, .dev = { .platform_data = &da830_evm_nand_pdata, }, .num_resources = ARRAY_SIZE(da830_evm_nand_resources), .resource = da830_evm_nand_resources, }; static inline void da830_evm_init_nand(int mux_mode) { int ret; if (HAS_MMC) { pr_warning("WARNING: both MMC/SD and NAND are " "enabled, but they share AEMIF pins.\n" "\tDisable MMC/SD for NAND support.\n"); return; } ret = davinci_cfg_reg_list(da830_evm_emif25_pins); if (ret) pr_warning("da830_evm_init: emif25 mux setup failed: %d\n", ret); ret = platform_device_register(&da830_evm_nand_device); if (ret) pr_warning("da830_evm_init: NAND device not registered.\n"); gpio_direction_output(mux_mode, 1); } #else static inline void da830_evm_init_nand(int mux_mode) { } #endif #ifdef CONFIG_DA830_UI_LCD static inline void da830_evm_init_lcdc(int mux_mode) { int ret; ret = davinci_cfg_reg_list(da830_lcdcntl_pins); if (ret) pr_warning("da830_evm_init: lcdcntl mux setup failed: %d\n", ret); ret = da8xx_register_lcdc(&sharp_lcd035q3dg01_pdata); if (ret) pr_warning("da830_evm_init: lcd setup failed: %d\n", ret); gpio_direction_output(mux_mode, 0); } #else static inline void da830_evm_init_lcdc(int mux_mode) { } #endif static struct at24_platform_data da830_evm_i2c_eeprom_info = { .byte_len = SZ_256K / 8, .page_size = 64, .flags = AT24_FLAG_ADDR16, .setup = davinci_get_mac_addr, .context = (void *)0x7f00, }; static int __init da830_evm_ui_expander_setup(struct i2c_client *client, int gpio, unsigned ngpio, void *context) { gpio_request(gpio + 6, "UI MUX_MODE"); /* Drive mux mode low to match the default without UI card */ gpio_direction_output(gpio + 6, 0); da830_evm_init_lcdc(gpio + 6); da830_evm_init_nand(gpio + 6); return 0; } static int da830_evm_ui_expander_teardown(struct i2c_client *client, int gpio, unsigned ngpio, void *context) { gpio_free(gpio + 6); return 0; } static struct pcf857x_platform_data __initdata da830_evm_ui_expander_info = { .gpio_base = DAVINCI_N_GPIO, .setup = da830_evm_ui_expander_setup, .teardown = da830_evm_ui_expander_teardown, }; static struct i2c_board_info __initdata da830_evm_i2c_devices[] = { { I2C_BOARD_INFO("24c256", 0x50), .platform_data = &da830_evm_i2c_eeprom_info, }, { I2C_BOARD_INFO("tlv320aic3x", 0x18), }, { I2C_BOARD_INFO("pcf8574", 0x3f), .platform_data = &da830_evm_ui_expander_info, }, }; static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = { .bus_freq = 100, /* kHz */ .bus_delay = 0, /* usec */ }; /* * The following EDMA channels/slots are not being used by drivers (for * example: Timer, GPIO, UART events etc) on da830/omap-l137 EVM, hence * they are being reserved for codecs on the DSP side. */ static const s16 da830_dma_rsv_chans[][2] = { /* (offset, number) */ { 8, 2}, {12, 2}, {24, 4}, {30, 2}, {-1, -1} }; static const s16 da830_dma_rsv_slots[][2] = { /* (offset, number) */ { 8, 2}, {12, 2}, {24, 4}, {30, 26}, {-1, -1} }; static struct edma_rsv_info da830_edma_rsv[] = { { .rsv_chans = da830_dma_rsv_chans, .rsv_slots = da830_dma_rsv_slots, }, }; static struct mtd_partition da830evm_spiflash_part[] = { [0] = { .name = "DSP-UBL", .offset = 0, .size = SZ_8K, .mask_flags = MTD_WRITEABLE, }, [1] = { .name = "ARM-UBL", .offset = MTDPART_OFS_APPEND, .size = SZ_16K + SZ_8K, .mask_flags = MTD_WRITEABLE, }, [2] = { .name = "U-Boot", .offset = MTDPART_OFS_APPEND, .size = SZ_256K - SZ_32K, .mask_flags = MTD_WRITEABLE, }, [3] = { .name = "U-Boot-Environment", .offset = MTDPART_OFS_APPEND, .size = SZ_16K, .mask_flags = 0, }, [4] = { .name = "Kernel", .offset = MTDPART_OFS_APPEND, .size = MTDPART_SIZ_FULL, .mask_flags = 0, }, }; static struct flash_platform_data da830evm_spiflash_data = { .name = "m25p80", .parts = da830evm_spiflash_part, .nr_parts = ARRAY_SIZE(da830evm_spiflash_part), .type = "w25x32", }; static struct davinci_spi_config da830evm_spiflash_cfg = { .io_type = SPI_IO_TYPE_DMA, .c2tdelay = 8, .t2cdelay = 8, }; static struct spi_board_info da830evm_spi_info[] = { { .modalias = "m25p80", .platform_data = &da830evm_spiflash_data, .controller_data = &da830evm_spiflash_cfg, .mode = SPI_MODE_0, .max_speed_hz = 30000000, .bus_num = 0, .chip_select = 0, }, }; static __init void da830_evm_init(void) { struct davinci_soc_info *soc_info = &davinci_soc_info; int ret; ret = da830_register_edma(da830_edma_rsv); if (ret) pr_warning("da830_evm_init: edma registration failed: %d\n", ret); ret = davinci_cfg_reg_list(da830_i2c0_pins); if (ret) pr_warning("da830_evm_init: i2c0 mux setup failed: %d\n", ret); ret = da8xx_register_i2c(0, &da830_evm_i2c_0_pdata); if (ret) pr_warning("da830_evm_init: i2c0 registration failed: %d\n", ret); da830_evm_usb_init(); soc_info->emac_pdata->rmii_en = 1; soc_info->emac_pdata->phy_id = DA830_EVM_PHY_ID; ret = davinci_cfg_reg_list(da830_cpgmac_pins); if (ret) pr_warning("da830_evm_init: cpgmac mux setup failed: %d\n", ret); ret = da8xx_register_emac(); if (ret) pr_warning("da830_evm_init: emac registration failed: %d\n", ret); ret = da8xx_register_watchdog(); if (ret) pr_warning("da830_evm_init: watchdog registration failed: %d\n", ret); davinci_serial_init(&da830_evm_uart_config); i2c_register_board_info(1, da830_evm_i2c_devices, ARRAY_SIZE(da830_evm_i2c_devices)); ret = davinci_cfg_reg_list(da830_evm_mcasp1_pins); if (ret) pr_warning("da830_evm_init: mcasp1 mux setup failed: %d\n", ret); da8xx_register_mcasp(1, &da830_evm_snd_data); da830_evm_init_mmc(); ret = da8xx_register_rtc(); if (ret) pr_warning("da830_evm_init: rtc setup failed: %d\n", ret); ret = spi_register_board_info(da830evm_spi_info, ARRAY_SIZE(da830evm_spi_info)); if (ret) pr_warn("%s: spi info registration failed: %d\n", __func__, ret); ret = da8xx_register_spi_bus(0, ARRAY_SIZE(da830evm_spi_info)); if (ret) pr_warning("da830_evm_init: spi 0 registration failed: %d\n", ret); } #ifdef CONFIG_SERIAL_8250_CONSOLE static int __init da830_evm_console_init(void) { if (!machine_is_davinci_da830_evm()) return 0; return add_preferred_console("ttyS", 2, "115200"); } console_initcall(da830_evm_console_init); #endif static void __init da830_evm_map_io(void) { da830_init(); } MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP-L137/AM17x EVM") .atag_offset = 0x100, .map_io = da830_evm_map_io, .init_irq = cp_intc_init, .init_time = davinci_timer_init, .init_machine = da830_evm_init, .init_late = davinci_init_late, .dma_zone_size = SZ_128M, .restart = da8xx_restart, MACHINE_END