|  | /* | 
|  | * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved. | 
|  | */ | 
|  |  | 
|  | /* | 
|  | * 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/init.h> | 
|  | #include <linux/platform_device.h> | 
|  | #include <linux/gpio.h> | 
|  | #include <linux/delay.h> | 
|  | #include <linux/io.h> | 
|  |  | 
|  | #include <mach/common.h> | 
|  | #include <mach/hardware.h> | 
|  | #include <mach/iomux-mx50.h> | 
|  |  | 
|  | #include <asm/irq.h> | 
|  | #include <asm/setup.h> | 
|  | #include <asm/mach-types.h> | 
|  | #include <asm/mach/arch.h> | 
|  | #include <asm/mach/time.h> | 
|  |  | 
|  | #include "devices-imx50.h" | 
|  |  | 
|  | #define FEC_EN		IMX_GPIO_NR(6, 23) | 
|  | #define FEC_RESET_B	IMX_GPIO_NR(4, 12) | 
|  |  | 
|  | static iomux_v3_cfg_t mx50_rdp_pads[] __initdata = { | 
|  | /* SD1 */ | 
|  | MX50_PAD_ECSPI2_SS0__GPIO_4_19, | 
|  | MX50_PAD_EIM_CRE__GPIO_1_27, | 
|  | MX50_PAD_SD1_CMD__SD1_CMD, | 
|  |  | 
|  | MX50_PAD_SD1_CLK__SD1_CLK, | 
|  | MX50_PAD_SD1_D0__SD1_D0, | 
|  | MX50_PAD_SD1_D1__SD1_D1, | 
|  | MX50_PAD_SD1_D2__SD1_D2, | 
|  | MX50_PAD_SD1_D3__SD1_D3, | 
|  |  | 
|  | /* SD2 */ | 
|  | MX50_PAD_SD2_CD__GPIO_5_17, | 
|  | MX50_PAD_SD2_WP__GPIO_5_16, | 
|  | MX50_PAD_SD2_CMD__SD2_CMD, | 
|  | MX50_PAD_SD2_CLK__SD2_CLK, | 
|  | MX50_PAD_SD2_D0__SD2_D0, | 
|  | MX50_PAD_SD2_D1__SD2_D1, | 
|  | MX50_PAD_SD2_D2__SD2_D2, | 
|  | MX50_PAD_SD2_D3__SD2_D3, | 
|  | MX50_PAD_SD2_D4__SD2_D4, | 
|  | MX50_PAD_SD2_D5__SD2_D5, | 
|  | MX50_PAD_SD2_D6__SD2_D6, | 
|  | MX50_PAD_SD2_D7__SD2_D7, | 
|  |  | 
|  | /* SD3 */ | 
|  | MX50_PAD_SD3_CMD__SD3_CMD, | 
|  | MX50_PAD_SD3_CLK__SD3_CLK, | 
|  | MX50_PAD_SD3_D0__SD3_D0, | 
|  | MX50_PAD_SD3_D1__SD3_D1, | 
|  | MX50_PAD_SD3_D2__SD3_D2, | 
|  | MX50_PAD_SD3_D3__SD3_D3, | 
|  | MX50_PAD_SD3_D4__SD3_D4, | 
|  | MX50_PAD_SD3_D5__SD3_D5, | 
|  | MX50_PAD_SD3_D6__SD3_D6, | 
|  | MX50_PAD_SD3_D7__SD3_D7, | 
|  |  | 
|  | /* PWR_INT */ | 
|  | MX50_PAD_ECSPI2_MISO__GPIO_4_18, | 
|  |  | 
|  | /* UART pad setting */ | 
|  | MX50_PAD_UART1_TXD__UART1_TXD, | 
|  | MX50_PAD_UART1_RXD__UART1_RXD, | 
|  | MX50_PAD_UART1_RTS__UART1_RTS, | 
|  | MX50_PAD_UART2_TXD__UART2_TXD, | 
|  | MX50_PAD_UART2_RXD__UART2_RXD, | 
|  | MX50_PAD_UART2_CTS__UART2_CTS, | 
|  | MX50_PAD_UART2_RTS__UART2_RTS, | 
|  |  | 
|  | MX50_PAD_I2C1_SCL__I2C1_SCL, | 
|  | MX50_PAD_I2C1_SDA__I2C1_SDA, | 
|  | MX50_PAD_I2C2_SCL__I2C2_SCL, | 
|  | MX50_PAD_I2C2_SDA__I2C2_SDA, | 
|  |  | 
|  | MX50_PAD_EPITO__USBH1_PWR, | 
|  | /* Need to comment below line if | 
|  | * one needs to debug owire. | 
|  | */ | 
|  | MX50_PAD_OWIRE__USBH1_OC, | 
|  | /* using gpio to control otg pwr */ | 
|  | MX50_PAD_PWM2__GPIO_6_25, | 
|  | MX50_PAD_I2C3_SCL__USBOTG_OC, | 
|  |  | 
|  | MX50_PAD_SSI_RXC__FEC_MDIO, | 
|  | MX50_PAD_SSI_RXFS__FEC_MDC, | 
|  | MX50_PAD_DISP_D0__FEC_TXCLK, | 
|  | MX50_PAD_DISP_D1__FEC_RX_ER, | 
|  | MX50_PAD_DISP_D2__FEC_RX_DV, | 
|  | MX50_PAD_DISP_D3__FEC_RXD1, | 
|  | MX50_PAD_DISP_D4__FEC_RXD0, | 
|  | MX50_PAD_DISP_D5__FEC_TX_EN, | 
|  | MX50_PAD_DISP_D6__FEC_TXD1, | 
|  | MX50_PAD_DISP_D7__FEC_TXD0, | 
|  | MX50_PAD_I2C3_SDA__GPIO_6_23, | 
|  | MX50_PAD_ECSPI1_SCLK__GPIO_4_12, | 
|  |  | 
|  | MX50_PAD_CSPI_SS0__CSPI_SS0, | 
|  | MX50_PAD_ECSPI1_MOSI__CSPI_SS1, | 
|  | MX50_PAD_CSPI_MOSI__CSPI_MOSI, | 
|  | MX50_PAD_CSPI_MISO__CSPI_MISO, | 
|  |  | 
|  | /* SGTL500_OSC_EN */ | 
|  | MX50_PAD_UART1_CTS__GPIO_6_8, | 
|  |  | 
|  | /* SGTL_AMP_SHDN */ | 
|  | MX50_PAD_UART3_RXD__GPIO_6_15, | 
|  |  | 
|  | /* Keypad */ | 
|  | MX50_PAD_KEY_COL0__KEY_COL0, | 
|  | MX50_PAD_KEY_ROW0__KEY_ROW0, | 
|  | MX50_PAD_KEY_COL1__KEY_COL1, | 
|  | MX50_PAD_KEY_ROW1__KEY_ROW1, | 
|  | MX50_PAD_KEY_COL2__KEY_COL2, | 
|  | MX50_PAD_KEY_ROW2__KEY_ROW2, | 
|  | MX50_PAD_KEY_COL3__KEY_COL3, | 
|  | MX50_PAD_KEY_ROW3__KEY_ROW3, | 
|  | MX50_PAD_EIM_DA0__KEY_COL4, | 
|  | MX50_PAD_EIM_DA1__KEY_ROW4, | 
|  | MX50_PAD_EIM_DA2__KEY_COL5, | 
|  | MX50_PAD_EIM_DA3__KEY_ROW5, | 
|  | MX50_PAD_EIM_DA4__KEY_COL6, | 
|  | MX50_PAD_EIM_DA5__KEY_ROW6, | 
|  | MX50_PAD_EIM_DA6__KEY_COL7, | 
|  | MX50_PAD_EIM_DA7__KEY_ROW7, | 
|  | /*EIM pads */ | 
|  | MX50_PAD_EIM_DA8__GPIO_1_8, | 
|  | MX50_PAD_EIM_DA9__GPIO_1_9, | 
|  | MX50_PAD_EIM_DA10__GPIO_1_10, | 
|  | MX50_PAD_EIM_DA11__GPIO_1_11, | 
|  | MX50_PAD_EIM_DA12__GPIO_1_12, | 
|  | MX50_PAD_EIM_DA13__GPIO_1_13, | 
|  | MX50_PAD_EIM_DA14__GPIO_1_14, | 
|  | MX50_PAD_EIM_DA15__GPIO_1_15, | 
|  | MX50_PAD_EIM_CS2__GPIO_1_16, | 
|  | MX50_PAD_EIM_CS1__GPIO_1_17, | 
|  | MX50_PAD_EIM_CS0__GPIO_1_18, | 
|  | MX50_PAD_EIM_EB0__GPIO_1_19, | 
|  | MX50_PAD_EIM_EB1__GPIO_1_20, | 
|  | MX50_PAD_EIM_WAIT__GPIO_1_21, | 
|  | MX50_PAD_EIM_BCLK__GPIO_1_22, | 
|  | MX50_PAD_EIM_RDY__GPIO_1_23, | 
|  | MX50_PAD_EIM_OE__GPIO_1_24, | 
|  | }; | 
|  |  | 
|  | /* Serial ports */ | 
|  | static const struct imxuart_platform_data uart_pdata __initconst = { | 
|  | .flags = IMXUART_HAVE_RTSCTS, | 
|  | }; | 
|  |  | 
|  | static const struct fec_platform_data fec_data __initconst = { | 
|  | .phy = PHY_INTERFACE_MODE_RMII, | 
|  | }; | 
|  |  | 
|  | static inline void mx50_rdp_fec_reset(void) | 
|  | { | 
|  | gpio_request(FEC_EN, "fec-en"); | 
|  | gpio_direction_output(FEC_EN, 0); | 
|  | gpio_request(FEC_RESET_B, "fec-reset_b"); | 
|  | gpio_direction_output(FEC_RESET_B, 0); | 
|  | msleep(1); | 
|  | gpio_set_value(FEC_RESET_B, 1); | 
|  | } | 
|  |  | 
|  | static const struct imxi2c_platform_data i2c_data __initconst = { | 
|  | .bitrate = 100000, | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * Board specific initialization. | 
|  | */ | 
|  | static void __init mx50_rdp_board_init(void) | 
|  | { | 
|  | mxc_iomux_v3_setup_multiple_pads(mx50_rdp_pads, | 
|  | ARRAY_SIZE(mx50_rdp_pads)); | 
|  |  | 
|  | imx50_add_imx_uart(0, &uart_pdata); | 
|  | imx50_add_imx_uart(1, &uart_pdata); | 
|  | mx50_rdp_fec_reset(); | 
|  | imx50_add_fec(&fec_data); | 
|  | imx50_add_imx_i2c(0, &i2c_data); | 
|  | imx50_add_imx_i2c(1, &i2c_data); | 
|  | imx50_add_imx_i2c(2, &i2c_data); | 
|  | } | 
|  |  | 
|  | static void __init mx50_rdp_timer_init(void) | 
|  | { | 
|  | mx50_clocks_init(32768, 24000000, 22579200); | 
|  | } | 
|  |  | 
|  | static struct sys_timer mx50_rdp_timer = { | 
|  | .init	= mx50_rdp_timer_init, | 
|  | }; | 
|  |  | 
|  | MACHINE_START(MX50_RDP, "Freescale MX50 Reference Design Platform") | 
|  | .map_io = mx50_map_io, | 
|  | .init_early = imx50_init_early, | 
|  | .init_irq = mx50_init_irq, | 
|  | .timer = &mx50_rdp_timer, | 
|  | .init_machine = mx50_rdp_board_init, | 
|  | MACHINE_END |