arch/arm/mach-imx/mach-mx50_rdp.c

   1 /*
   2  * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved.
   3  */
   4
   5 /*
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #include <linux/init.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/gpio.h>
  24 #include <linux/delay.h>
  25 #include <linux/io.h>
  26
  27 #include <asm/irq.h>
  28 #include <asm/setup.h>
  29 #include <asm/mach-types.h>
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/time.h>
  32
  33 #include "common.h"
  34 #include "devices-imx50.h"
  35 #include "hardware.h"
  36 #include "iomux-mx50.h"
  37
  38 #define FEC_EN          IMX_GPIO_NR(6, 23)
  39 #define FEC_RESET_B     IMX_GPIO_NR(4, 12)
  40
  41 static iomux_v3_cfg_t mx50_rdp_pads[] __initdata = {
  42         /* SD1 */
  43         MX50_PAD_ECSPI2_SS0__GPIO_4_19,
  44         MX50_PAD_EIM_CRE__GPIO_1_27,
  45         MX50_PAD_SD1_CMD__SD1_CMD,
  46
  47         MX50_PAD_SD1_CLK__SD1_CLK,
  48         MX50_PAD_SD1_D0__SD1_D0,
  49         MX50_PAD_SD1_D1__SD1_D1,
  50         MX50_PAD_SD1_D2__SD1_D2,
  51         MX50_PAD_SD1_D3__SD1_D3,
  52
  53         /* SD2 */
  54         MX50_PAD_SD2_CD__GPIO_5_17,
  55         MX50_PAD_SD2_WP__GPIO_5_16,
  56         MX50_PAD_SD2_CMD__SD2_CMD,
  57         MX50_PAD_SD2_CLK__SD2_CLK,
  58         MX50_PAD_SD2_D0__SD2_D0,
  59         MX50_PAD_SD2_D1__SD2_D1,
  60         MX50_PAD_SD2_D2__SD2_D2,
  61         MX50_PAD_SD2_D3__SD2_D3,
  62         MX50_PAD_SD2_D4__SD2_D4,
  63         MX50_PAD_SD2_D5__SD2_D5,
  64         MX50_PAD_SD2_D6__SD2_D6,
  65         MX50_PAD_SD2_D7__SD2_D7,
  66
  67         /* SD3 */
  68         MX50_PAD_SD3_CMD__SD3_CMD,
  69         MX50_PAD_SD3_CLK__SD3_CLK,
  70         MX50_PAD_SD3_D0__SD3_D0,
  71         MX50_PAD_SD3_D1__SD3_D1,
  72         MX50_PAD_SD3_D2__SD3_D2,
  73         MX50_PAD_SD3_D3__SD3_D3,
  74         MX50_PAD_SD3_D4__SD3_D4,
  75         MX50_PAD_SD3_D5__SD3_D5,
  76         MX50_PAD_SD3_D6__SD3_D6,
  77         MX50_PAD_SD3_D7__SD3_D7,
  78
  79         /* PWR_INT */
  80         MX50_PAD_ECSPI2_MISO__GPIO_4_18,
  81
  82         /* UART pad setting */
  83         MX50_PAD_UART1_TXD__UART1_TXD,
  84         MX50_PAD_UART1_RXD__UART1_RXD,
  85         MX50_PAD_UART1_RTS__UART1_RTS,
  86         MX50_PAD_UART2_TXD__UART2_TXD,
  87         MX50_PAD_UART2_RXD__UART2_RXD,
  88         MX50_PAD_UART2_CTS__UART2_CTS,
  89         MX50_PAD_UART2_RTS__UART2_RTS,
  90
  91         MX50_PAD_I2C1_SCL__I2C1_SCL,
  92         MX50_PAD_I2C1_SDA__I2C1_SDA,
  93         MX50_PAD_I2C2_SCL__I2C2_SCL,
  94         MX50_PAD_I2C2_SDA__I2C2_SDA,
  95
  96         MX50_PAD_EPITO__USBH1_PWR,
  97         /* Need to comment below line if
  98          * one needs to debug owire.
  99          */
 100         MX50_PAD_OWIRE__USBH1_OC,
 101         /* using gpio to control otg pwr */
 102         MX50_PAD_PWM2__GPIO_6_25,
 103         MX50_PAD_I2C3_SCL__USBOTG_OC,
 104
 105         MX50_PAD_SSI_RXC__FEC_MDIO,
 106         MX50_PAD_SSI_RXFS__FEC_MDC,
 107         MX50_PAD_DISP_D0__FEC_TXCLK,
 108         MX50_PAD_DISP_D1__FEC_RX_ER,
 109         MX50_PAD_DISP_D2__FEC_RX_DV,
 110         MX50_PAD_DISP_D3__FEC_RXD1,
 111         MX50_PAD_DISP_D4__FEC_RXD0,
 112         MX50_PAD_DISP_D5__FEC_TX_EN,
 113         MX50_PAD_DISP_D6__FEC_TXD1,
 114         MX50_PAD_DISP_D7__FEC_TXD0,
 115         MX50_PAD_I2C3_SDA__GPIO_6_23,
 116         MX50_PAD_ECSPI1_SCLK__GPIO_4_12,
 117
 118         MX50_PAD_CSPI_SS0__CSPI_SS0,
 119         MX50_PAD_ECSPI1_MOSI__CSPI_SS1,
 120         MX50_PAD_CSPI_MOSI__CSPI_MOSI,
 121         MX50_PAD_CSPI_MISO__CSPI_MISO,
 122
 123         /* SGTL500_OSC_EN */
 124         MX50_PAD_UART1_CTS__GPIO_6_8,
 125
 126         /* SGTL_AMP_SHDN */
 127         MX50_PAD_UART3_RXD__GPIO_6_15,
 128
 129         /* Keypad */
 130         MX50_PAD_KEY_COL0__KEY_COL0,
 131         MX50_PAD_KEY_ROW0__KEY_ROW0,
 132         MX50_PAD_KEY_COL1__KEY_COL1,
 133         MX50_PAD_KEY_ROW1__KEY_ROW1,
 134         MX50_PAD_KEY_COL2__KEY_COL2,
 135         MX50_PAD_KEY_ROW2__KEY_ROW2,
 136         MX50_PAD_KEY_COL3__KEY_COL3,
 137         MX50_PAD_KEY_ROW3__KEY_ROW3,
 138         MX50_PAD_EIM_DA0__KEY_COL4,
 139         MX50_PAD_EIM_DA1__KEY_ROW4,
 140         MX50_PAD_EIM_DA2__KEY_COL5,
 141         MX50_PAD_EIM_DA3__KEY_ROW5,
 142         MX50_PAD_EIM_DA4__KEY_COL6,
 143         MX50_PAD_EIM_DA5__KEY_ROW6,
 144         MX50_PAD_EIM_DA6__KEY_COL7,
 145         MX50_PAD_EIM_DA7__KEY_ROW7,
 146         /*EIM pads */
 147         MX50_PAD_EIM_DA8__GPIO_1_8,
 148         MX50_PAD_EIM_DA9__GPIO_1_9,
 149         MX50_PAD_EIM_DA10__GPIO_1_10,
 150         MX50_PAD_EIM_DA11__GPIO_1_11,
 151         MX50_PAD_EIM_DA12__GPIO_1_12,
 152         MX50_PAD_EIM_DA13__GPIO_1_13,
 153         MX50_PAD_EIM_DA14__GPIO_1_14,
 154         MX50_PAD_EIM_DA15__GPIO_1_15,
 155         MX50_PAD_EIM_CS2__GPIO_1_16,
 156         MX50_PAD_EIM_CS1__GPIO_1_17,
 157         MX50_PAD_EIM_CS0__GPIO_1_18,
 158         MX50_PAD_EIM_EB0__GPIO_1_19,
 159         MX50_PAD_EIM_EB1__GPIO_1_20,
 160         MX50_PAD_EIM_WAIT__GPIO_1_21,
 161         MX50_PAD_EIM_BCLK__GPIO_1_22,
 162         MX50_PAD_EIM_RDY__GPIO_1_23,
 163         MX50_PAD_EIM_OE__GPIO_1_24,
 164 };
 165
 166 /* Serial ports */
 167 static const struct imxuart_platform_data uart_pdata __initconst = {
 168         .flags = IMXUART_HAVE_RTSCTS,
 169 };
 170
 171 static const struct fec_platform_data fec_data __initconst = {
 172         .phy = PHY_INTERFACE_MODE_RMII,
 173 };
 174
 175 static inline void mx50_rdp_fec_reset(void)
 176 {
 177         gpio_request(FEC_EN, "fec-en");
 178         gpio_direction_output(FEC_EN, 0);
 179         gpio_request(FEC_RESET_B, "fec-reset_b");
 180         gpio_direction_output(FEC_RESET_B, 0);
 181         msleep(1);
 182         gpio_set_value(FEC_RESET_B, 1);
 183 }
 184
 185 static const struct imxi2c_platform_data i2c_data __initconst = {
 186         .bitrate = 100000,
 187 };
 188
 189 /*
 190  * Board specific initialization.
 191  */
 192 static void __init mx50_rdp_board_init(void)
 193 {
 194         imx50_soc_init();
 195
 196         mxc_iomux_v3_setup_multiple_pads(mx50_rdp_pads,
 197                                         ARRAY_SIZE(mx50_rdp_pads));
 198
 199         imx50_add_imx_uart(0, &uart_pdata);
 200         imx50_add_imx_uart(1, &uart_pdata);
 201         mx50_rdp_fec_reset();
 202         imx50_add_fec(&fec_data);
 203         imx50_add_imx_i2c(0, &i2c_data);
 204         imx50_add_imx_i2c(1, &i2c_data);
 205         imx50_add_imx_i2c(2, &i2c_data);
 206 }
 207
 208 static void __init mx50_rdp_timer_init(void)
 209 {
 210         mx50_clocks_init(32768, 24000000, 22579200);
 211 }
 212
 213 static struct sys_timer mx50_rdp_timer = {
 214         .init   = mx50_rdp_timer_init,
 215 };
 216
 217 MACHINE_START(MX50_RDP, "Freescale MX50 Reference Design Platform")
 218         .map_io = mx50_map_io,
 219         .init_early = imx50_init_early,
 220         .init_irq = mx50_init_irq,
 221         .handle_irq = imx50_handle_irq,
 222         .timer = &mx50_rdp_timer,
 223         .init_machine = mx50_rdp_board_init,
 224         .restart        = mxc_restart,
 225 MACHINE_END