| /* |
| * 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 |