mach-mx25_3ds.rar_reset

/* * Copyright 2009 Sascha Hauer, <kernel@pengutronix.de> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301, USA. */ /* * This machine is known as: * - i.MX25 3-Stack Development System * - i.MX25 Platform Development Kit (i.MX25 PDK) */ #include <linux/types.h> #include <linux/init.h> #include <linux/delay.h> #include <linux/clk.h> #include <linux/irq.h> #include <linux/gpio.h> #include <linux/platform_device.h> #include <linux/usb/otg.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/time.h> #include <asm/memory.h> #include <asm/mach/map.h> #include "common.h" #include "devices-imx25.h" #include "ehci.h" #include "hardware.h" #include "iomux-mx25.h" #include "mx25.h" #define MX25PDK_CAN_PWDN IMX_GPIO_NR(4, 6) static const struct imxuart_platform_data uart_pdata __initconst = { .flags = IMXUART_HAVE_RTSCTS, }; static iomux_v3_cfg_t mx25pdk_pads[] = { MX25_PAD_FEC_MDC__FEC_MDC, MX25_PAD_FEC_MDIO__FEC_MDIO, MX25_PAD_FEC_TDATA0__FEC_TDATA0, MX25_PAD_FEC_TDATA1__FEC_TDATA1, MX25_PAD_FEC_TX_EN__FEC_TX_EN, MX25_PAD_FEC_RDATA0__FEC_RDATA0, MX25_PAD_FEC_RDATA1__FEC_RDATA1, MX25_PAD_FEC_RX_DV__FEC_RX_DV, MX25_PAD_FEC_TX_CLK__FEC_TX_CLK, MX25_PAD_A17__GPIO_2_3, /* FEC_EN, GPIO 35 */ MX25_PAD_D12__GPIO_4_8, /* FEC_RESET_B, GPIO 104 */ /* LCD */ MX25_PAD_LD0__LD0, MX25_PAD_LD1__LD1, MX25_PAD_LD2__LD2, MX25_PAD_LD3__LD3, MX25_PAD_LD4__LD4, MX25_PAD_LD5__LD5, MX25_PAD_LD6__LD6, MX25_PAD_LD7__LD7, MX25_PAD_LD8__LD8, MX25_PAD_LD9__LD9, MX25_PAD_LD10__LD10, MX25_PAD_LD11__LD11, MX25_PAD_LD12__LD12, MX25_PAD_LD13__LD13, MX25_PAD_LD14__LD14, MX25_PAD_LD15__LD15, MX25_PAD_GPIO_E__LD16, MX25_PAD_GPIO_F__LD17, MX25_PAD_HSYNC__HSYNC, MX25_PAD_VSYNC__VSYNC, MX25_PAD_LSCLK__LSCLK, MX25_PAD_OE_ACD__OE_ACD, MX25_PAD_CONTRAST__CONTRAST, /* Keypad */ MX25_PAD_KPP_ROW0__KPP_ROW0, MX25_PAD_KPP_ROW1__KPP_ROW1, MX25_PAD_KPP_ROW2__KPP_ROW2, MX25_PAD_KPP_ROW3__KPP_ROW3, MX25_PAD_KPP_COL0__KPP_COL0, MX25_PAD_KPP_COL1__KPP_COL1, MX25_PAD_KPP_COL2__KPP_COL2, MX25_PAD_KPP_COL3__KPP_COL3, /* SD1 */ MX25_PAD_SD1_CMD__SD1_CMD, MX25_PAD_SD1_CLK__SD1_CLK, MX25_PAD_SD1_DATA0__SD1_DATA0, MX25_PAD_SD1_DATA1__SD1_DATA1, MX25_PAD_SD1_DATA2__SD1_DATA2, MX25_PAD_SD1_DATA3__SD1_DATA3, MX25_PAD_A14__GPIO_2_0, /* WriteProtect */ MX25_PAD_A15__GPIO_2_1, /* CardDetect */ /* I2C1 */ MX25_PAD_I2C1_CLK__I2C1_CLK, MX25_PAD_I2C1_DAT__I2C1_DAT, /* CAN1 */ MX25_PAD_GPIO_A__CAN1_TX, MX25_PAD_GPIO_B__CAN1_RX, MX25_PAD_D14__GPIO_4_6, /* CAN_PWDN */ }; static const struct fec_platform_data mx25_fec_pdata __initconst = { .phy = PHY_INTERFACE_MODE_RMII, }; #define FEC_ENABLE_GPIO IMX_GPIO_NR(2, 3) #define FEC_RESET_B_GPIO IMX_GPIO_NR(4, 8) static void __init mx25pdk_fec_reset(void) { gpio_request(FEC_ENABLE_GPIO, "FEC PHY enable"); gpio_request(FEC_RESET_B_GPIO, "FEC PHY reset"); gpio_direction_output(FEC_ENABLE_GPIO, 0); /* drop PHY power */ gpio_direction_output(FEC_RESET_B_GPIO, 0); /* assert reset */ udelay(2); /* turn on PHY power and lift reset */ gpio_set_value(FEC_ENABLE_GPIO, 1); gpio_set_value(FEC_RESET_B_GPIO, 1); } static const struct mxc_nand_platform_data mx25pdk_nand_board_info __initconst = { .width = 1, .hw_ecc = 1, .flash_bbt = 1, }; static struct imx_fb_videomode mx25pdk_modes[] = { { .mode = { .name = "CRT-VGA", .refresh = 60, .xres = 640, .yres = 480, .pixclock = 39683, .left_margin = 45, .right_margin = 114, .upper_margin = 33, .lower_margin = 11, .hsync_len = 1, .vsync_len = 1, }, .bpp = 16, .pcr = 0xFA208B80, }, }; static const struct imx_fb_platform_data mx25pdk_fb_pdata __initconst = { .mode = mx25pdk_modes, .num_modes = ARRAY_SIZE(mx25pdk_modes), .pwmr = 0x00A903FF, .lscr1 = 0x00120300, .dmacr = 0x00020010, }; static const uint32_t mx25pdk_keymap[] = { KEY(0, 0, KEY_UP), KEY(0, 1, KEY_DOWN), KEY(0, 2, KEY_VOLUMEDOWN), KEY(0, 3, KEY_HOME), KEY(1, 0, KEY_RIGHT), KEY(1, 1, KEY_LEFT), KEY(1, 2, KEY_ENTER), KEY(1, 3, KEY_VOLUMEUP), KEY(2, 0, KEY_F6), KEY(2, 1, KEY_F8), KEY(2, 2, KEY_F9), KEY(2, 3, KEY_F10), KEY(3, 0, KEY_F1), KEY(3, 1, KEY_F2), KEY(3, 2, KEY_F3), KEY(3, 3, KEY_POWER), }; static const struct matrix_keymap_data mx25pdk_keymap_data __initconst = { .keymap = mx25pdk_keymap, .keymap_size = ARRAY_SIZE(mx25pdk_keymap), }; static int mx25pdk_usbh2_init(struct platform_device *pdev) { return mx25_initialize_usb_hw(pdev->id, MXC_EHCI_INTERNAL_PHY); } static const struct mxc_usbh_platform_data usbh2_pdata __initconst = { .init = mx25pdk_usbh2_init, .portsc = MXC_EHCI_MODE_SERIAL, }; static const struct fsl_usb2_platform_data otg_device_pdata __initconst = { .operating_mode = FSL_USB2_DR_DEVICE, .phy_mode = FSL_USB2_PHY_UTMI, }; static const struct imxi2c_platform_data mx25_3ds_i2c0_data __initconst = { .bitrate = 100000, }; #define SD1_GPIO_WP IMX_GPIO_NR(2, 0) #define SD1_GPIO_CD IMX_GPIO_NR(2, 1) static const struct esdhc_platform_data mx25pdk_esdhc_pdata __initconst = { .wp_gpio = SD1_GPIO_WP, .cd_gpio = SD1_GPIO_CD, .wp_type = ESDHC_WP_GPIO, .cd_type = ESDHC_CD_GPIO, }; static void __init mx25pdk_init(void) { imx25_soc_init(); mxc_iomux_v3_setup_multiple_pads(mx25pdk_pads, ARRAY_SIZE(mx25pdk_pads)); imx25_add_imx_uart0(&uart_pdata); imx25_add_fsl_usb2_udc(&otg_device_pdata); imx25_add_mxc_ehci_hs(&usbh2_pdata); imx25_add_mxc_nand(&mx25pdk_nand_board_info); imx25_add_imxdi_rtc(); imx25_add_imx_fb(&mx25pdk_fb_pdata); imx25_add_imx2_wdt(); mx25pdk_fec_reset(); imx25_add_fec(&mx25_fec_pdata); imx25_add_imx_keypad(&mx25pdk_keymap_data); imx25_add_sdhci_esdhc_imx(0, &mx25pdk_esdhc_pdata); imx25_add_imx_i2c0(&mx25_3ds_i2c0_data); gpio_request_one(MX25PDK_CAN_PWDN, GPIOF_OUT_INIT_LOW, "can-pwdn"); imx25_add_flexcan0(); } static void __init mx25pdk_timer_init(void) { mx25_clocks_init(); } MACHINE_START(MX25_3DS, "Freescale MX25PDK (3DS)") /* Maintainer: Freescale Semiconductor, Inc. */ .atag_offset = 0x100, .map_io = mx25_map_io, .init_early = imx25_init_early, .init_irq = mx25_init_irq, .init_time = mx25pdk_timer_init, .init_machine = mx25pdk_init, .restart = mxc_restart, MACHINE_END