/* * * Copyright (C) 2010 Eric Bénard * * based on board-mx51_babbage.c which is * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved. * Copyright (C) 2009-2010 Amit Kucheria * * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License * Version 2 or later at the following locations: * * http://www.opensource.org/licenses/gpl-license.html * http://www.gnu.org/copyleft/gpl.html */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "devices-imx51.h" #include "devices.h" #define USBH1_RST (1*32 + 28) #define ETH_RST (1*32 + 31) #define TSC2007_IRQGPIO (2*32 + 12) #define CAN_IRQGPIO (0*32 + 1) #define CAN_RST (3*32 + 15) #define CAN_NCS (3*32 + 24) #define CAN_RXOBF (0*32 + 4) #define CAN_RX1BF (0*32 + 6) #define CAN_TXORTS (0*32 + 7) #define CAN_TX1RTS (0*32 + 8) #define CAN_TX2RTS (0*32 + 9) #define I2C_SCL (3*32 + 16) #define I2C_SDA (3*32 + 17) /* USB_CTRL_1 */ #define MX51_USB_CTRL_1_OFFSET 0x10 #define MX51_USB_CTRL_UH1_EXT_CLK_EN (1 << 25) #define MX51_USB_PLLDIV_12_MHZ 0x00 #define MX51_USB_PLL_DIV_19_2_MHZ 0x01 #define MX51_USB_PLL_DIV_24_MHZ 0x02 #define CPUIMX51SD_GPIO_3_12 IOMUX_PAD(0x57C, 0x194, 3, 0x0, 0, \ MX51_PAD_CTRL_1 | PAD_CTL_PUS_22K_UP) static struct pad_desc eukrea_cpuimx51sd_pads[] = { /* UART1 */ MX51_PAD_UART1_RXD__UART1_RXD, MX51_PAD_UART1_TXD__UART1_TXD, MX51_PAD_UART1_RTS__UART1_RTS, MX51_PAD_UART1_CTS__UART1_CTS, /* USB HOST1 */ MX51_PAD_USBH1_CLK__USBH1_CLK, MX51_PAD_USBH1_DIR__USBH1_DIR, MX51_PAD_USBH1_NXT__USBH1_NXT, MX51_PAD_USBH1_DATA0__USBH1_DATA0, MX51_PAD_USBH1_DATA1__USBH1_DATA1, MX51_PAD_USBH1_DATA2__USBH1_DATA2, MX51_PAD_USBH1_DATA3__USBH1_DATA3, MX51_PAD_USBH1_DATA4__USBH1_DATA4, MX51_PAD_USBH1_DATA5__USBH1_DATA5, MX51_PAD_USBH1_DATA6__USBH1_DATA6, MX51_PAD_USBH1_DATA7__USBH1_DATA7, MX51_PAD_USBH1_STP__USBH1_STP, MX51_PAD_EIM_CS3__GPIO_2_28, /* PHY nRESET */ /* FEC */ MX51_PAD_EIM_DTACK__GPIO_2_31, /* PHY nRESET */ /* HSI2C */ MX51_PAD_I2C1_CLK__GPIO_4_16, MX51_PAD_I2C1_DAT__GPIO_4_17, /* CAN */ MX51_PAD_CSPI1_MOSI__ECSPI1_MOSI, MX51_PAD_CSPI1_MISO__ECSPI1_MISO, MX51_PAD_CSPI1_SCLK__ECSPI1_SCLK, MX51_PAD_CSPI1_SS0__GPIO_4_24, /* nCS */ MX51_PAD_CSI2_PIXCLK__GPIO_4_15, /* nReset */ MX51_PAD_GPIO_1_1__GPIO_1_1, /* IRQ */ MX51_PAD_GPIO_1_4__GPIO_1_4, /* Control signals */ MX51_PAD_GPIO_1_6__GPIO_1_6, MX51_PAD_GPIO_1_7__GPIO_1_7, MX51_PAD_GPIO_1_8__GPIO_1_8, MX51_PAD_GPIO_1_9__GPIO_1_9, /* Touchscreen */ CPUIMX51SD_GPIO_3_12, /* IRQ */ }; static const struct imxuart_platform_data uart_pdata __initconst = { .flags = IMXUART_HAVE_RTSCTS, }; static int ts_get_pendown_state(void) { return gpio_get_value(TSC2007_IRQGPIO) ? 0 : 1; } static struct tsc2007_platform_data tsc2007_info = { .model = 2007, .x_plate_ohms = 180, .get_pendown_state = ts_get_pendown_state, }; static struct i2c_board_info eukrea_cpuimx51sd_i2c_devices[] = { { I2C_BOARD_INFO("pcf8563", 0x51), }, { I2C_BOARD_INFO("tsc2007", 0x49), .type = "tsc2007", .platform_data = &tsc2007_info, .irq = gpio_to_irq(TSC2007_IRQGPIO), }, }; static const struct mxc_nand_platform_data eukrea_cpuimx51sd_nand_board_info __initconst = { .width = 1, .hw_ecc = 1, .flash_bbt = 1, }; /* This function is board specific as the bit mask for the plldiv will also be different for other Freescale SoCs, thus a common bitmask is not possible and cannot get place in /plat-mxc/ehci.c.*/ static int initialize_otg_port(struct platform_device *pdev) { u32 v; void __iomem *usb_base; void __iomem *usbother_base; usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K); usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET; /* Set the PHY clock to 19.2MHz */ v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET); v &= ~MX5_USB_UTMI_PHYCTRL1_PLLDIV_MASK; v |= MX51_USB_PLL_DIV_19_2_MHZ; __raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC2_OFFSET); iounmap(usb_base); return 0; } static int initialize_usbh1_port(struct platform_device *pdev) { u32 v; void __iomem *usb_base; void __iomem *usbother_base; usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K); usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET; /* The clock for the USBH1 ULPI port will come from the PHY. */ v = __raw_readl(usbother_base + MX51_USB_CTRL_1_OFFSET); __raw_writel(v | MX51_USB_CTRL_UH1_EXT_CLK_EN, usbother_base + MX51_USB_CTRL_1_OFFSET); iounmap(usb_base); return 0; } static struct mxc_usbh_platform_data dr_utmi_config = { .init = initialize_otg_port, .portsc = MXC_EHCI_UTMI_16BIT, .flags = MXC_EHCI_INTERNAL_PHY, }; static struct fsl_usb2_platform_data usb_pdata = { .operating_mode = FSL_USB2_DR_DEVICE, .phy_mode = FSL_USB2_PHY_UTMI_WIDE, }; static struct mxc_usbh_platform_data usbh1_config = { .init = initialize_usbh1_port, .portsc = MXC_EHCI_MODE_ULPI, .flags = (MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_ITC_NO_THRESHOLD), }; static int otg_mode_host; static int __init eukrea_cpuimx51sd_otg_mode(char *options) { if (!strcmp(options, "host")) otg_mode_host = 1; else if (!strcmp(options, "device")) otg_mode_host = 0; else pr_info("otg_mode neither \"host\" nor \"device\". " "Defaulting to device\n"); return 0; } __setup("otg_mode=", eukrea_cpuimx51sd_otg_mode); static struct i2c_gpio_platform_data pdata = { .sda_pin = I2C_SDA, .sda_is_open_drain = 0, .scl_pin = I2C_SCL, .scl_is_open_drain = 0, .udelay = 2, }; static struct platform_device hsi2c_gpio_device = { .name = "i2c-gpio", .id = 0, .dev.platform_data = &pdata, }; static struct mcp251x_platform_data mcp251x_info = { .oscillator_frequency = 24E6, }; static struct spi_board_info cpuimx51sd_spi_device[] = { { .modalias = "mcp2515", .max_speed_hz = 6500000, .bus_num = 0, .mode = SPI_MODE_0, .chip_select = 0, .platform_data = &mcp251x_info, .irq = gpio_to_irq(0 * 32 + 1) }, }; static int cpuimx51sd_spi1_cs[] = { CAN_NCS, }; static const struct spi_imx_master cpuimx51sd_ecspi1_pdata __initconst = { .chipselect = cpuimx51sd_spi1_cs, .num_chipselect = ARRAY_SIZE(cpuimx51sd_spi1_cs), }; static struct platform_device *platform_devices[] __initdata = { &hsi2c_gpio_device, }; static void __init eukrea_cpuimx51sd_init(void) { mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx51sd_pads, ARRAY_SIZE(eukrea_cpuimx51sd_pads)); imx51_add_imx_uart(0, &uart_pdata); imx51_add_mxc_nand(&eukrea_cpuimx51sd_nand_board_info); gpio_request(ETH_RST, "eth_rst"); gpio_set_value(ETH_RST, 1); imx51_add_fec(NULL); gpio_request(CAN_IRQGPIO, "can_irq"); gpio_direction_input(CAN_IRQGPIO); gpio_free(CAN_IRQGPIO); gpio_request(CAN_NCS, "can_ncs"); gpio_direction_output(CAN_NCS, 1); gpio_free(CAN_NCS); gpio_request(CAN_RST, "can_rst"); gpio_direction_output(CAN_RST, 0); msleep(20); gpio_set_value(CAN_RST, 1); imx51_add_ecspi(0, &cpuimx51sd_ecspi1_pdata); spi_register_board_info(cpuimx51sd_spi_device, ARRAY_SIZE(cpuimx51sd_spi_device)); gpio_request(TSC2007_IRQGPIO, "tsc2007_irq"); gpio_direction_input(TSC2007_IRQGPIO); gpio_free(TSC2007_IRQGPIO); i2c_register_board_info(0, eukrea_cpuimx51sd_i2c_devices, ARRAY_SIZE(eukrea_cpuimx51sd_i2c_devices)); platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); if (otg_mode_host) mxc_register_device(&mxc_usbdr_host_device, &dr_utmi_config); else { initialize_otg_port(NULL); mxc_register_device(&mxc_usbdr_udc_device, &usb_pdata); } gpio_request(USBH1_RST, "usb_rst"); gpio_direction_output(USBH1_RST, 0); msleep(20); gpio_set_value(USBH1_RST, 1); mxc_register_device(&mxc_usbh1_device, &usbh1_config); #ifdef CONFIG_MACH_EUKREA_MBIMXSD51_BASEBOARD eukrea_mbimxsd51_baseboard_init(); #endif } static void __init eukrea_cpuimx51sd_timer_init(void) { mx51_clocks_init(32768, 24000000, 22579200, 0); } static struct sys_timer mxc_timer = { .init = eukrea_cpuimx51sd_timer_init, }; MACHINE_START(EUKREA_CPUIMX51SD, "Eukrea CPUIMX51SD") /* Maintainer: Eric Bénard */ .boot_params = PHYS_OFFSET + 0x100, .map_io = mx51_map_io, .init_irq = mx51_init_irq, .init_machine = eukrea_cpuimx51sd_init, .timer = &mxc_timer, MACHINE_END