| /* |
| * TI DA850/OMAP-L138 EVM board |
| * |
| * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/ |
| * |
| * Derived from: arch/arm/mach-davinci/board-da830-evm.c |
| * Original Copyrights follow: |
| * |
| * 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/module.h> |
| #include <linux/init.h> |
| #include <linux/console.h> |
| #include <linux/i2c.h> |
| #include <linux/i2c/at24.h> |
| #include <linux/gpio.h> |
| #include <linux/platform_device.h> |
| #include <linux/mtd/mtd.h> |
| #include <linux/mtd/nand.h> |
| #include <linux/mtd/partitions.h> |
| #include <linux/mtd/physmap.h> |
| |
| #include <asm/mach-types.h> |
| #include <asm/mach/arch.h> |
| |
| #include <mach/common.h> |
| #include <mach/irqs.h> |
| #include <mach/cp_intc.h> |
| #include <mach/da8xx.h> |
| #include <mach/nand.h> |
| |
| #define DA850_EVM_PHY_MASK 0x1 |
| #define DA850_EVM_MDIO_FREQUENCY 2200000 /* PHY bus frequency */ |
| |
| #define DA850_LCD_BL_PIN GPIO_TO_PIN(2, 15) |
| #define DA850_LCD_PWR_PIN GPIO_TO_PIN(8, 10) |
| |
| #define DA850_MMCSD_CD_PIN GPIO_TO_PIN(4, 0) |
| #define DA850_MMCSD_WP_PIN GPIO_TO_PIN(4, 1) |
| |
| static struct mtd_partition da850_evm_norflash_partition[] = { |
| { |
| .name = "NOR filesystem", |
| .offset = 0, |
| .size = MTDPART_SIZ_FULL, |
| .mask_flags = 0, |
| }, |
| }; |
| |
| static struct physmap_flash_data da850_evm_norflash_data = { |
| .width = 2, |
| .parts = da850_evm_norflash_partition, |
| .nr_parts = ARRAY_SIZE(da850_evm_norflash_partition), |
| }; |
| |
| static struct resource da850_evm_norflash_resource[] = { |
| { |
| .start = DA8XX_AEMIF_CS2_BASE, |
| .end = DA8XX_AEMIF_CS2_BASE + SZ_32M - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| }; |
| |
| static struct platform_device da850_evm_norflash_device = { |
| .name = "physmap-flash", |
| .id = 0, |
| .dev = { |
| .platform_data = &da850_evm_norflash_data, |
| }, |
| .num_resources = 1, |
| .resource = da850_evm_norflash_resource, |
| }; |
| |
| /* DA850/OMAP-L138 EVM includes a 512 MByte large-page NAND flash |
| * (128K blocks). It may be used instead of the (default) SPI flash |
| * to boot, using TI's tools to install the secondary boot loader |
| * (UBL) and U-Boot. |
| */ |
| struct mtd_partition da850_evm_nandflash_partition[] = { |
| { |
| .name = "u-boot env", |
| .offset = 0, |
| .size = SZ_128K, |
| .mask_flags = MTD_WRITEABLE, |
| }, |
| { |
| .name = "UBL", |
| .offset = MTDPART_OFS_APPEND, |
| .size = SZ_128K, |
| .mask_flags = MTD_WRITEABLE, |
| }, |
| { |
| .name = "u-boot", |
| .offset = MTDPART_OFS_APPEND, |
| .size = 4 * SZ_128K, |
| .mask_flags = MTD_WRITEABLE, |
| }, |
| { |
| .name = "kernel", |
| .offset = 0x200000, |
| .size = SZ_2M, |
| .mask_flags = 0, |
| }, |
| { |
| .name = "filesystem", |
| .offset = MTDPART_OFS_APPEND, |
| .size = MTDPART_SIZ_FULL, |
| .mask_flags = 0, |
| }, |
| }; |
| |
| static struct davinci_nand_pdata da850_evm_nandflash_data = { |
| .parts = da850_evm_nandflash_partition, |
| .nr_parts = ARRAY_SIZE(da850_evm_nandflash_partition), |
| .ecc_mode = NAND_ECC_HW, |
| .options = NAND_USE_FLASH_BBT, |
| }; |
| |
| static struct resource da850_evm_nandflash_resource[] = { |
| { |
| .start = DA8XX_AEMIF_CS3_BASE, |
| .end = DA8XX_AEMIF_CS3_BASE + SZ_512K + 2 * SZ_1K - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = DA8XX_AEMIF_CTL_BASE, |
| .end = DA8XX_AEMIF_CTL_BASE + SZ_32K - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| }; |
| |
| static struct platform_device da850_evm_nandflash_device = { |
| .name = "davinci_nand", |
| .id = 1, |
| .dev = { |
| .platform_data = &da850_evm_nandflash_data, |
| }, |
| .num_resources = ARRAY_SIZE(da850_evm_nandflash_resource), |
| .resource = da850_evm_nandflash_resource, |
| }; |
| |
| static struct i2c_board_info __initdata da850_evm_i2c_devices[] = { |
| { |
| I2C_BOARD_INFO("tlv320aic3x", 0x18), |
| } |
| }; |
| |
| static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = { |
| .bus_freq = 100, /* kHz */ |
| .bus_delay = 0, /* usec */ |
| }; |
| |
| static struct davinci_uart_config da850_evm_uart_config __initdata = { |
| .enabled_uarts = 0x7, |
| }; |
| |
| static struct platform_device *da850_evm_devices[] __initdata = { |
| &da850_evm_nandflash_device, |
| &da850_evm_norflash_device, |
| }; |
| |
| /* davinci da850 evm audio machine driver */ |
| static u8 da850_iis_serializer_direction[] = { |
| INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, |
| INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, |
| INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, TX_MODE, |
| RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, |
| }; |
| |
| static struct snd_platform_data da850_evm_snd_data = { |
| .tx_dma_offset = 0x2000, |
| .rx_dma_offset = 0x2000, |
| .op_mode = DAVINCI_MCASP_IIS_MODE, |
| .num_serializer = ARRAY_SIZE(da850_iis_serializer_direction), |
| .tdm_slots = 2, |
| .serial_dir = da850_iis_serializer_direction, |
| .eventq_no = EVENTQ_1, |
| .version = MCASP_VERSION_2, |
| .txnumevt = 1, |
| .rxnumevt = 1, |
| }; |
| |
| static int da850_evm_mmc_get_ro(int index) |
| { |
| return gpio_get_value(DA850_MMCSD_WP_PIN); |
| } |
| |
| static int da850_evm_mmc_get_cd(int index) |
| { |
| return !gpio_get_value(DA850_MMCSD_CD_PIN); |
| } |
| |
| static struct davinci_mmc_config da850_mmc_config = { |
| .get_ro = da850_evm_mmc_get_ro, |
| .get_cd = da850_evm_mmc_get_cd, |
| .wires = 4, |
| .version = MMC_CTLR_VERSION_2, |
| }; |
| |
| static int da850_lcd_hw_init(void) |
| { |
| int status; |
| |
| status = gpio_request(DA850_LCD_BL_PIN, "lcd bl\n"); |
| if (status < 0) |
| return status; |
| |
| status = gpio_request(DA850_LCD_PWR_PIN, "lcd pwr\n"); |
| if (status < 0) { |
| gpio_free(DA850_LCD_BL_PIN); |
| return status; |
| } |
| |
| gpio_direction_output(DA850_LCD_BL_PIN, 0); |
| gpio_direction_output(DA850_LCD_PWR_PIN, 0); |
| |
| /* disable lcd backlight */ |
| gpio_set_value(DA850_LCD_BL_PIN, 0); |
| |
| /* disable lcd power */ |
| gpio_set_value(DA850_LCD_PWR_PIN, 0); |
| |
| /* enable lcd power */ |
| gpio_set_value(DA850_LCD_PWR_PIN, 1); |
| |
| /* enable lcd backlight */ |
| gpio_set_value(DA850_LCD_BL_PIN, 1); |
| |
| return 0; |
| } |
| |
| #define DA8XX_AEMIF_CE2CFG_OFFSET 0x10 |
| #define DA8XX_AEMIF_ASIZE_16BIT 0x1 |
| |
| static void __init da850_evm_init_nor(void) |
| { |
| void __iomem *aemif_addr; |
| |
| aemif_addr = ioremap(DA8XX_AEMIF_CTL_BASE, SZ_32K); |
| |
| /* Configure data bus width of CS2 to 16 bit */ |
| writel(readl(aemif_addr + DA8XX_AEMIF_CE2CFG_OFFSET) | |
| DA8XX_AEMIF_ASIZE_16BIT, |
| aemif_addr + DA8XX_AEMIF_CE2CFG_OFFSET); |
| |
| iounmap(aemif_addr); |
| } |
| |
| #if defined(CONFIG_MTD_PHYSMAP) || \ |
| defined(CONFIG_MTD_PHYSMAP_MODULE) |
| #define HAS_NOR 1 |
| #else |
| #define HAS_NOR 0 |
| #endif |
| |
| #if defined(CONFIG_MMC_DAVINCI) || \ |
| defined(CONFIG_MMC_DAVINCI_MODULE) |
| #define HAS_MMC 1 |
| #else |
| #define HAS_MMC 0 |
| #endif |
| |
| static __init void da850_evm_init(void) |
| { |
| struct davinci_soc_info *soc_info = &davinci_soc_info; |
| int ret; |
| |
| ret = da8xx_pinmux_setup(da850_nand_pins); |
| if (ret) |
| pr_warning("da850_evm_init: nand mux setup failed: %d\n", |
| ret); |
| |
| ret = da8xx_pinmux_setup(da850_nor_pins); |
| if (ret) |
| pr_warning("da850_evm_init: nor mux setup failed: %d\n", |
| ret); |
| |
| da850_evm_init_nor(); |
| |
| platform_add_devices(da850_evm_devices, |
| ARRAY_SIZE(da850_evm_devices)); |
| |
| ret = da8xx_register_edma(); |
| if (ret) |
| pr_warning("da850_evm_init: edma registration failed: %d\n", |
| ret); |
| |
| ret = da8xx_pinmux_setup(da850_i2c0_pins); |
| if (ret) |
| pr_warning("da850_evm_init: i2c0 mux setup failed: %d\n", |
| ret); |
| |
| ret = da8xx_register_i2c(0, &da850_evm_i2c_0_pdata); |
| if (ret) |
| pr_warning("da850_evm_init: i2c0 registration failed: %d\n", |
| ret); |
| |
| soc_info->emac_pdata->phy_mask = DA850_EVM_PHY_MASK; |
| soc_info->emac_pdata->mdio_max_freq = DA850_EVM_MDIO_FREQUENCY; |
| soc_info->emac_pdata->rmii_en = 0; |
| |
| ret = da8xx_pinmux_setup(da850_cpgmac_pins); |
| if (ret) |
| pr_warning("da850_evm_init: cpgmac mux setup failed: %d\n", |
| ret); |
| |
| ret = da8xx_register_emac(); |
| if (ret) |
| pr_warning("da850_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); |
| |
| if (HAS_MMC) { |
| if (HAS_NOR) |
| pr_warning("WARNING: both NOR Flash and MMC/SD are " |
| "enabled, but they share AEMIF pins.\n" |
| "\tDisable one of them.\n"); |
| |
| ret = da8xx_pinmux_setup(da850_mmcsd0_pins); |
| if (ret) |
| pr_warning("da850_evm_init: mmcsd0 mux setup failed:" |
| " %d\n", ret); |
| |
| ret = gpio_request(DA850_MMCSD_CD_PIN, "MMC CD\n"); |
| if (ret) |
| pr_warning("da850_evm_init: can not open GPIO %d\n", |
| DA850_MMCSD_CD_PIN); |
| gpio_direction_input(DA850_MMCSD_CD_PIN); |
| |
| ret = gpio_request(DA850_MMCSD_WP_PIN, "MMC WP\n"); |
| if (ret) |
| pr_warning("da850_evm_init: can not open GPIO %d\n", |
| DA850_MMCSD_WP_PIN); |
| gpio_direction_input(DA850_MMCSD_WP_PIN); |
| |
| ret = da8xx_register_mmcsd0(&da850_mmc_config); |
| if (ret) |
| pr_warning("da850_evm_init: mmcsd0 registration failed:" |
| " %d\n", ret); |
| } |
| |
| davinci_serial_init(&da850_evm_uart_config); |
| |
| i2c_register_board_info(1, da850_evm_i2c_devices, |
| ARRAY_SIZE(da850_evm_i2c_devices)); |
| |
| /* |
| * shut down uart 0 and 1; they are not used on the board and |
| * accessing them causes endless "too much work in irq53" messages |
| * with arago fs |
| */ |
| __raw_writel(0, IO_ADDRESS(DA8XX_UART1_BASE) + 0x30); |
| __raw_writel(0, IO_ADDRESS(DA8XX_UART0_BASE) + 0x30); |
| |
| ret = da8xx_pinmux_setup(da850_mcasp_pins); |
| if (ret) |
| pr_warning("da850_evm_init: mcasp mux setup failed: %d\n", |
| ret); |
| |
| da8xx_init_mcasp(0, &da850_evm_snd_data); |
| |
| ret = da8xx_pinmux_setup(da850_lcdcntl_pins); |
| if (ret) |
| pr_warning("da850_evm_init: lcdcntl mux setup failed: %d\n", |
| ret); |
| |
| ret = da850_lcd_hw_init(); |
| if (ret) |
| pr_warning("da850_evm_init: lcd initialization failed: %d\n", |
| ret); |
| |
| ret = da8xx_register_lcdc(); |
| if (ret) |
| pr_warning("da850_evm_init: lcdc registration failed: %d\n", |
| ret); |
| } |
| |
| #ifdef CONFIG_SERIAL_8250_CONSOLE |
| static int __init da850_evm_console_init(void) |
| { |
| return add_preferred_console("ttyS", 2, "115200"); |
| } |
| console_initcall(da850_evm_console_init); |
| #endif |
| |
| static __init void da850_evm_irq_init(void) |
| { |
| struct davinci_soc_info *soc_info = &davinci_soc_info; |
| |
| cp_intc_init((void __iomem *)DA8XX_CP_INTC_VIRT, DA850_N_CP_INTC_IRQ, |
| soc_info->intc_irq_prios); |
| } |
| |
| static void __init da850_evm_map_io(void) |
| { |
| da850_init(); |
| } |
| |
| MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138 EVM") |
| .phys_io = IO_PHYS, |
| .io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc, |
| .boot_params = (DA8XX_DDR_BASE + 0x100), |
| .map_io = da850_evm_map_io, |
| .init_irq = da850_evm_irq_init, |
| .timer = &davinci_timer, |
| .init_machine = da850_evm_init, |
| MACHINE_END |