arch/arm/mach-imx/mach-eukrea_cpuimx25.c

   1 /*
   2  * Copyright 2009 Sascha Hauer, <kernel@pengutronix.de>
   3  * Copyright 2010 Eric Bénard - Eukréa Electromatique, <eric@eukrea.com>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301, USA.
  18  */
  19
  20 #include <linux/types.h>
  21 #include <linux/init.h>
  22 #include <linux/delay.h>
  23 #include <linux/clk.h>
  24 #include <linux/irq.h>
  25 #include <linux/gpio.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/usb/otg.h>
  28 #include <linux/usb/ulpi.h>
  29
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/time.h>
  33 #include <asm/memory.h>
  34 #include <asm/mach/map.h>
  35
  36 #include "common.h"
  37 #include "devices-imx25.h"
  38 #include "eukrea-baseboards.h"
  39 #include "hardware.h"
  40 #include "iomux-mx25.h"
  41 #include "mx25.h"
  42
  43 static const struct imxuart_platform_data uart_pdata __initconst = {
  44         .flags = IMXUART_HAVE_RTSCTS,
  45 };
  46
  47 static iomux_v3_cfg_t eukrea_cpuimx25_pads[] = {
  48         /* FEC - RMII */
  49         MX25_PAD_FEC_MDC__FEC_MDC,
  50         MX25_PAD_FEC_MDIO__FEC_MDIO,
  51         MX25_PAD_FEC_TDATA0__FEC_TDATA0,
  52         MX25_PAD_FEC_TDATA1__FEC_TDATA1,
  53         MX25_PAD_FEC_TX_EN__FEC_TX_EN,
  54         MX25_PAD_FEC_RDATA0__FEC_RDATA0,
  55         MX25_PAD_FEC_RDATA1__FEC_RDATA1,
  56         MX25_PAD_FEC_RX_DV__FEC_RX_DV,
  57         MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
  58         /* I2C1 */
  59         MX25_PAD_I2C1_CLK__I2C1_CLK,
  60         MX25_PAD_I2C1_DAT__I2C1_DAT,
  61 };
  62
  63 static const struct fec_platform_data mx25_fec_pdata __initconst = {
  64         .phy    = PHY_INTERFACE_MODE_RMII,
  65 };
  66
  67 static const struct mxc_nand_platform_data
  68 eukrea_cpuimx25_nand_board_info __initconst = {
  69         .width          = 1,
  70         .hw_ecc         = 1,
  71         .flash_bbt      = 1,
  72 };
  73
  74 static const struct imxi2c_platform_data
  75 eukrea_cpuimx25_i2c0_data __initconst = {
  76         .bitrate = 100000,
  77 };
  78
  79 static struct i2c_board_info eukrea_cpuimx25_i2c_devices[] = {
  80         {
  81                 I2C_BOARD_INFO("pcf8563", 0x51),
  82         },
  83 };
  84
  85 static int eukrea_cpuimx25_otg_init(struct platform_device *pdev)
  86 {
  87         return mx25_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
  88 }
  89
  90 static const struct mxc_usbh_platform_data otg_pdata __initconst = {
  91         .init   = eukrea_cpuimx25_otg_init,
  92         .portsc = MXC_EHCI_MODE_UTMI,
  93 };
  94
  95 static int eukrea_cpuimx25_usbh2_init(struct platform_device *pdev)
  96 {
  97         return mx25_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_SINGLE_UNI |
  98                         MXC_EHCI_INTERNAL_PHY | MXC_EHCI_IPPUE_DOWN);
  99 }
 100
 101 static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
 102         .init   = eukrea_cpuimx25_usbh2_init,
 103         .portsc = MXC_EHCI_MODE_SERIAL,
 104 };
 105
 106 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
 107         .operating_mode = FSL_USB2_DR_DEVICE,
 108         .phy_mode       = FSL_USB2_PHY_UTMI,
 109         .workaround     = FLS_USB2_WORKAROUND_ENGCM09152,
 110 };
 111
 112 static bool otg_mode_host __initdata;
 113
 114 static int __init eukrea_cpuimx25_otg_mode(char *options)
 115 {
 116         if (!strcmp(options, "host"))
 117                 otg_mode_host = true;
 118         else if (!strcmp(options, "device"))
 119                 otg_mode_host = false;
 120         else
 121                 pr_info("otg_mode neither \"host\" nor \"device\". "
 122                         "Defaulting to device\n");
 123         return 1;
 124 }
 125 __setup("otg_mode=", eukrea_cpuimx25_otg_mode);
 126
 127 static void __init eukrea_cpuimx25_init(void)
 128 {
 129         imx25_soc_init();
 130
 131         if (mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx25_pads,
 132                         ARRAY_SIZE(eukrea_cpuimx25_pads)))
 133                 printk(KERN_ERR "error setting cpuimx25 pads !\n");
 134
 135         imx25_add_imx_uart0(&uart_pdata);
 136         imx25_add_mxc_nand(&eukrea_cpuimx25_nand_board_info);
 137         imx25_add_imxdi_rtc();
 138         imx25_add_fec(&mx25_fec_pdata);
 139         imx25_add_imx2_wdt();
 140
 141         i2c_register_board_info(0, eukrea_cpuimx25_i2c_devices,
 142                                 ARRAY_SIZE(eukrea_cpuimx25_i2c_devices));
 143         imx25_add_imx_i2c0(&eukrea_cpuimx25_i2c0_data);
 144
 145         if (otg_mode_host)
 146                 imx25_add_mxc_ehci_otg(&otg_pdata);
 147         else
 148                 imx25_add_fsl_usb2_udc(&otg_device_pdata);
 149
 150         imx25_add_mxc_ehci_hs(&usbh2_pdata);
 151
 152 #ifdef CONFIG_MACH_EUKREA_MBIMXSD25_BASEBOARD
 153         eukrea_mbimxsd25_baseboard_init();
 154 #endif
 155 }
 156
 157 static void __init eukrea_cpuimx25_timer_init(void)
 158 {
 159         mx25_clocks_init();
 160 }
 161
 162 MACHINE_START(EUKREA_CPUIMX25SD, "Eukrea CPUIMX25")
 163         /* Maintainer: Eukrea Electromatique */
 164         .atag_offset = 0x100,
 165         .map_io = mx25_map_io,
 166         .init_early = imx25_init_early,
 167         .init_irq = mx25_init_irq,
 168         .init_time = eukrea_cpuimx25_timer_init,
 169         .init_machine = eukrea_cpuimx25_init,
 170         .restart        = mxc_restart,
 171 MACHINE_END