/* * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix * Copyright (C) 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. */ #include <linux/platform_device.h> #include <linux/io.h> #include <linux/i2c.h> #include <linux/platform_data/at24.h> #include <linux/dma-mapping.h> #include <linux/spi/spi.h> #include <linux/spi/eeprom.h> #include <linux/irq.h> #include <linux/delay.h> #include <linux/gpio.h> #include <linux/usb/otg.h> #include <linux/usb/ulpi.h> #include <asm/mach/arch.h> #include <asm/mach-types.h> #include <asm/mach/time.h> #include "common.h" #include "devices-imx27.h" #include "hardware.h" #include "iomux-mx27.h" #include "ulpi.h" #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23) #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24) #define SPI1_SS0 (GPIO_PORTD + 28) #define SPI1_SS1 (GPIO_PORTD + 27) #define SD2_CD (GPIO_PORTC + 29) static const int pca100_pins[] __initconst = { /* UART1 */ PE12_PF_UART1_TXD, PE13_PF_UART1_RXD, PE14_PF_UART1_CTS, PE15_PF_UART1_RTS, /* SDHC */ PB4_PF_SD2_D0, PB5_PF_SD2_D1, PB6_PF_SD2_D2, PB7_PF_SD2_D3, PB8_PF_SD2_CMD, PB9_PF_SD2_CLK, SD2_CD | GPIO_GPIO | GPIO_IN, /* FEC */ PD0_AIN_FEC_TXD0, PD1_AIN_FEC_TXD1, PD2_AIN_FEC_TXD2, PD3_AIN_FEC_TXD3, PD4_AOUT_FEC_RX_ER, PD5_AOUT_FEC_RXD1, PD6_AOUT_FEC_RXD2, PD7_AOUT_FEC_RXD3, PD8_AF_FEC_MDIO, PD9_AIN_FEC_MDC, PD10_AOUT_FEC_CRS, PD11_AOUT_FEC_TX_CLK, PD12_AOUT_FEC_RXD0, PD13_AOUT_FEC_RX_DV, PD14_AOUT_FEC_RX_CLK, PD15_AOUT_FEC_COL, PD16_AIN_FEC_TX_ER, PF23_AIN_FEC_TX_EN, /* SSI1 */ PC20_PF_SSI1_FS, PC21_PF_SSI1_RXD, PC22_PF_SSI1_TXD, PC23_PF_SSI1_CLK, /* onboard I2C */ PC5_PF_I2C2_SDA, PC6_PF_I2C2_SCL, /* external I2C */ PD17_PF_I2C_DATA, PD18_PF_I2C_CLK, /* SPI1 */ PD25_PF_CSPI1_RDY, PD29_PF_CSPI1_SCLK, PD30_PF_CSPI1_MISO, PD31_PF_CSPI1_MOSI, /* OTG */ OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT, PC7_PF_USBOTG_DATA5, PC8_PF_USBOTG_DATA6, PC9_PF_USBOTG_DATA0, PC10_PF_USBOTG_DATA2, PC11_PF_USBOTG_DATA1, PC12_PF_USBOTG_DATA4, PC13_PF_USBOTG_DATA3, PE0_PF_USBOTG_NXT, PE1_PF_USBOTG_STP, PE2_PF_USBOTG_DIR, PE24_PF_USBOTG_CLK, PE25_PF_USBOTG_DATA7, /* USBH2 */ USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT, PA0_PF_USBH2_CLK, PA1_PF_USBH2_DIR, PA2_PF_USBH2_DATA7, PA3_PF_USBH2_NXT, PA4_PF_USBH2_STP, PD19_AF_USBH2_DATA4, PD20_AF_USBH2_DATA3, PD21_AF_USBH2_DATA6, PD22_AF_USBH2_DATA0, PD23_AF_USBH2_DATA2, PD24_AF_USBH2_DATA1, PD26_AF_USBH2_DATA5, /* display */ PA5_PF_LSCLK, PA6_PF_LD0, PA7_PF_LD1, PA8_PF_LD2, PA9_PF_LD3, PA10_PF_LD4, PA11_PF_LD5, PA12_PF_LD6, PA13_PF_LD7, PA14_PF_LD8, PA15_PF_LD9, PA16_PF_LD10, PA17_PF_LD11, PA18_PF_LD12, PA19_PF_LD13, PA20_PF_LD14, PA21_PF_LD15, PA22_PF_LD16, PA23_PF_LD17, PA26_PF_PS, PA28_PF_HSYNC, PA29_PF_VSYNC, PA31_PF_OE_ACD, /* free GPIO */ GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */ GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */ GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */ }; static const struct imxuart_platform_data uart_pdata __initconst = { .flags = IMXUART_HAVE_RTSCTS, }; static const struct mxc_nand_platform_data pca100_nand_board_info __initconst = { .width = 1, .hw_ecc = 1, }; static const struct imxi2c_platform_data pca100_i2c1_data __initconst = { .bitrate = 100000, }; static struct at24_platform_data board_eeprom = { .byte_len = 4096, .page_size = 32, .flags = AT24_FLAG_ADDR16, }; static struct i2c_board_info pca100_i2c_devices[] = { { I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */ .platform_data = &board_eeprom, }, { I2C_BOARD_INFO("pcf8563", 0x51), }, { I2C_BOARD_INFO("lm75", 0x4a), } }; static struct spi_eeprom at25320 = { .name = "at25320an", .byte_len = 4096, .page_size = 32, .flags = EE_ADDR2, }; static struct spi_board_info pca100_spi_board_info[] __initdata = { { .modalias = "at25", .max_speed_hz = 30000, .bus_num = 0, .chip_select = 1, .platform_data = &at25320, }, }; static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1}; static const struct spi_imx_master pca100_spi0_data __initconst = { .chipselect = pca100_spi_cs, .num_chipselect = ARRAY_SIZE(pca100_spi_cs), }; static void pca100_ac97_warm_reset(struct snd_ac97 *ac97) { mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); gpio_set_value(GPIO_PORTC + 20, 1); udelay(2); gpio_set_value(GPIO_PORTC + 20, 0); mxc_gpio_mode(PC20_PF_SSI1_FS); msleep(2); } static void pca100_ac97_cold_reset(struct snd_ac97 *ac97) { mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */ gpio_set_value(GPIO_PORTC + 20, 0); mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */ gpio_set_value(GPIO_PORTC + 22, 0); mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */ gpio_set_value(GPIO_PORTC + 28, 0); udelay(10); gpio_set_value(GPIO_PORTC + 28, 1); mxc_gpio_mode(PC20_PF_SSI1_FS); mxc_gpio_mode(PC22_PF_SSI1_TXD); msleep(2); } static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = { .ac97_reset = pca100_ac97_cold_reset, .ac97_warm_reset = pca100_ac97_warm_reset, .flags = IMX_SSI_USE_AC97, }; static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq, void *data) { int ret; ret = request_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), detect_irq, IRQF_TRIGGER_FALLING, "imx-mmc-detect", data); if (ret) printk(KERN_ERR "pca100: Failed to request irq for sd/mmc detection\n"); return ret; } static void pca100_sdhc2_exit(struct device *dev, void *data) { free_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), data); } static const struct imxmmc_platform_data sdhc_pdata __initconst = { .init = pca100_sdhc2_init, .exit = pca100_sdhc2_exit, }; static int otg_phy_init(struct platform_device *pdev) { gpio_set_value(OTG_PHY_CS_GPIO, 0); mdelay(10); return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI); } static struct mxc_usbh_platform_data otg_pdata __initdata = { .init = otg_phy_init, .portsc = MXC_EHCI_MODE_ULPI, }; static int usbh2_phy_init(struct platform_device *pdev) { gpio_set_value(USBH2_PHY_CS_GPIO, 0); mdelay(10); return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI); } static struct mxc_usbh_platform_data usbh2_pdata __initdata = { .init = usbh2_phy_init, .portsc = MXC_EHCI_MODE_ULPI, }; static const struct fsl_usb2_platform_data otg_device_pdata __initconst = { .operating_mode = FSL_USB2_DR_DEVICE, .phy_mode = FSL_USB2_PHY_ULPI, }; static bool otg_mode_host __initdata; static int __init pca100_otg_mode(char *options) { if (!strcmp(options, "host")) otg_mode_host = true; else if (!strcmp(options, "device")) otg_mode_host = false; else pr_info("otg_mode neither \"host\" nor \"device\". " "Defaulting to device\n"); return 1; } __setup("otg_mode=", pca100_otg_mode); /* framebuffer info */ static struct imx_fb_videomode pca100_fb_modes[] = { { .mode = { .name = "EMERGING-ETV570G0DHU", .refresh = 60, .xres = 640, .yres = 480, .pixclock = 39722, /* in ps (25.175 MHz) */ .hsync_len = 30, .left_margin = 114, .right_margin = 16, .vsync_len = 3, .upper_margin = 32, .lower_margin = 0, }, /* * TFT * Pixel pol active high * HSYNC active low * VSYNC active low * use HSYNC for ACD count * line clock disable while idle * always enable line clock even if no data */ .pcr = 0xf0c08080, .bpp = 16, }, }; static const struct imx_fb_platform_data pca100_fb_data __initconst = { .mode = pca100_fb_modes, .num_modes = ARRAY_SIZE(pca100_fb_modes), .pwmr = 0x00A903FF, .lscr1 = 0x00120300, .dmacr = 0x00020010, }; static void __init pca100_init(void) { int ret; imx27_soc_init(); ret = mxc_gpio_setup_multiple_pins(pca100_pins, ARRAY_SIZE(pca100_pins), "PCA100"); if (ret) printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret); imx27_add_imx_ssi(0, &pca100_ssi_pdata); imx27_add_imx_uart0(&uart_pdata); imx27_add_mxc_mmc(1, &sdhc_pdata); imx27_add_mxc_nand(&pca100_nand_board_info); /* only the i2c master 1 is used on this CPU card */ i2c_register_board_info(1, pca100_i2c_devices, ARRAY_SIZE(pca100_i2c_devices)); imx27_add_imx_i2c(1, &pca100_i2c1_data); mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN); mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN); spi_register_board_info(pca100_spi_board_info, ARRAY_SIZE(pca100_spi_board_info)); imx27_add_spi_imx0(&pca100_spi0_data); gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs"); gpio_direction_output(OTG_PHY_CS_GPIO, 1); gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs"); gpio_direction_output(USBH2_PHY_CS_GPIO, 1); if (otg_mode_host) { otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT); if (otg_pdata.otg) imx27_add_mxc_ehci_otg(&otg_pdata); } else { gpio_set_value(OTG_PHY_CS_GPIO, 0); imx27_add_fsl_usb2_udc(&otg_device_pdata); } usbh2_pdata.otg = imx_otg_ulpi_create( ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT); if (usbh2_pdata.otg) imx27_add_mxc_ehci_hs(2, &usbh2_pdata); imx27_add_imx_fb(&pca100_fb_data); imx27_add_fec(NULL); imx27_add_imx2_wdt(); imx27_add_mxc_w1(); } static void __init pca100_timer_init(void) { mx27_clocks_init(26000000); } MACHINE_START(PCA100, "phyCARD-i.MX27") .atag_offset = 0x100, .map_io = mx27_map_io, .init_early = imx27_init_early, .init_irq = mx27_init_irq, .init_machine = pca100_init, .init_time = pca100_timer_init, .restart = mxc_restart, MACHINE_END