1 files changed, 287 insertions, 0 deletions

diff --git a/arch/arm/mach-imx/mach-mx31lite.c b/arch/arm/mach-imx/mach-mx31lite.c
new file mode 100644
index 000000000000..ac9b4cad320e
--- /dev/null
+++ b/arch/arm/mach-imx/mach-mx31lite.c
@@ -0,0 +1,287 @@
+/*
+ *  Copyright (C) 2000 Deep Blue Solutions Ltd
+ *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
+ *  Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ *  Copyright (C) 2009 Daniel Mack <daniel@caiaq.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.
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/memory.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/smsc911x.h>
+#include <linux/mfd/mc13783.h>
+#include <linux/spi/spi.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/ulpi.h>
+#include <linux/mtd/physmap.h>
+#include <linux/delay.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/mach/map.h>
+#include <asm/page.h>
+#include <asm/setup.h>
+
+#include <mach/hardware.h>
+#include <mach/common.h>
+#include <mach/board-mx31lite.h>
+#include <mach/iomux-mx3.h>
+#include <mach/irqs.h>
+#include <mach/ulpi.h>
+
+#include "devices-imx31.h"
+
+/*
+ * This file contains the module-specific initialization routines.
+ */
+
+static unsigned int mx31lite_pins[] = {
+        /* LAN9117 IRQ pin */
+        IOMUX_MODE(MX31_PIN_SFS6, IOMUX_CONFIG_GPIO),
+        /* SPI 1 */
+        MX31_PIN_CSPI2_SCLK__SCLK,
+        MX31_PIN_CSPI2_MOSI__MOSI,
+        MX31_PIN_CSPI2_MISO__MISO,
+        MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
+        MX31_PIN_CSPI2_SS0__SS0,
+        MX31_PIN_CSPI2_SS1__SS1,
+        MX31_PIN_CSPI2_SS2__SS2,
+};
+
+static const struct mxc_nand_platform_data
+mx31lite_nand_board_info __initconst  = {
+        .width = 1,
+        .hw_ecc = 1,
+};
+
+static struct smsc911x_platform_config smsc911x_config = {
+        .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
+        .irq_type       = SMSC911X_IRQ_TYPE_PUSH_PULL,
+        .flags          = SMSC911X_USE_16BIT,
+};
+
+static struct resource smsc911x_resources[] = {
+        {
+                .start          = MX31_CS4_BASE_ADDR,
+                .end            = MX31_CS4_BASE_ADDR + 0x100,
+                .flags          = IORESOURCE_MEM,
+        }, {
+                .start          = IOMUX_TO_IRQ(MX31_PIN_SFS6),
+                .end            = IOMUX_TO_IRQ(MX31_PIN_SFS6),
+                .flags          = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device smsc911x_device = {
+        .name           = "smsc911x",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(smsc911x_resources),
+        .resource       = smsc911x_resources,
+        .dev            = {
+                .platform_data = &smsc911x_config,
+        },
+};
+
+/*
+ * SPI
+ *
+ * The MC13783 is the only hard-wired SPI device on the module.
+ */
+
+static int spi_internal_chipselect[] = {
+        MXC_SPI_CS(0),
+};
+
+static const struct spi_imx_master spi1_pdata __initconst = {
+        .chipselect     = spi_internal_chipselect,
+        .num_chipselect = ARRAY_SIZE(spi_internal_chipselect),
+};
+
+static struct mc13xxx_platform_data mc13783_pdata __initdata = {
+        .flags  = MC13XXX_USE_RTC |
+                  MC13XXX_USE_REGULATOR,
+};
+
+static struct spi_board_info mc13783_spi_dev __initdata = {
+        .modalias       = "mc13783",
+        .max_speed_hz   = 1000000,
+        .bus_num        = 1,
+        .chip_select    = 0,
+        .platform_data  = &mc13783_pdata,
+        .irq            = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
+};
+
+/*
+ * USB
+ */
+
+#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
+                        PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
+
+static int usbh2_init(struct platform_device *pdev)
+{
+        int pins[] = {
+                MX31_PIN_USBH2_DATA0__USBH2_DATA0,
+                MX31_PIN_USBH2_DATA1__USBH2_DATA1,
+                MX31_PIN_USBH2_CLK__USBH2_CLK,
+                MX31_PIN_USBH2_DIR__USBH2_DIR,
+                MX31_PIN_USBH2_NXT__USBH2_NXT,
+                MX31_PIN_USBH2_STP__USBH2_STP,
+        };
+
+        mxc_iomux_setup_multiple_pins(pins, ARRAY_SIZE(pins), "USB H2");
+
+        mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
+        mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
+        mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
+        mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
+        mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
+        mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
+        mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
+        mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
+        mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
+        mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
+        mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
+        mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
+
+        mxc_iomux_set_gpr(MUX_PGP_UH2, true);
+
+        /* chip select */
+        mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_DTR_DCE1, IOMUX_CONFIG_GPIO),
+                                "USBH2_CS");
+        gpio_request(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), "USBH2 CS");
+        gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1), 0);
+
+        mdelay(10);
+
+        return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
+}
+
+static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
+        .init   = usbh2_init,
+        .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
+};
+
+/*
+ * NOR flash
+ */
+
+static struct physmap_flash_data nor_flash_data = {
+        .width  = 2,
+};
+
+static struct resource nor_flash_resource = {
+        .start  = 0xa0000000,
+        .end    = 0xa1ffffff,
+        .flags  = IORESOURCE_MEM,
+};
+
+static struct platform_device physmap_flash_device = {
+        .name   = "physmap-flash",
+        .id     = 0,
+        .dev    = {
+                .platform_data  = &nor_flash_data,
+        },
+        .resource = &nor_flash_resource,
+        .num_resources = 1,
+};
+
+
+
+/*
+ * This structure defines the MX31 memory map.
+ */
+static struct map_desc mx31lite_io_desc[] __initdata = {
+        {
+                .virtual = MX31_CS4_BASE_ADDR_VIRT,
+                .pfn = __phys_to_pfn(MX31_CS4_BASE_ADDR),
+                .length = MX31_CS4_SIZE,
+                .type = MT_DEVICE
+        }
+};
+
+/*
+ * Set up static virtual mappings.
+ */
+void __init mx31lite_map_io(void)
+{
+        mx31_map_io();
+        iotable_init(mx31lite_io_desc, ARRAY_SIZE(mx31lite_io_desc));
+}
+
+static int mx31lite_baseboard;
+core_param(mx31lite_baseboard, mx31lite_baseboard, int, 0444);
+
+static void __init mx31lite_init(void)
+{
+        int ret;
+
+        switch (mx31lite_baseboard) {
+        case MX31LITE_NOBOARD:
+                break;
+        case MX31LITE_DB:
+                mx31lite_db_init();
+                break;
+        default:
+                printk(KERN_ERR "Illegal mx31lite_baseboard type %d\n",
+                                mx31lite_baseboard);
+        }
+
+        mxc_iomux_setup_multiple_pins(mx31lite_pins, ARRAY_SIZE(mx31lite_pins),
+                                      "mx31lite");
+
+        /* NOR and NAND flash */
+        platform_device_register(&physmap_flash_device);
+        imx31_add_mxc_nand(&mx31lite_nand_board_info);
+
+        imx31_add_spi_imx1(&spi1_pdata);
+        spi_register_board_info(&mc13783_spi_dev, 1);
+
+        /* USB */
+        usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
+                        ULPI_OTG_DRVVBUS_EXT);
+        if (usbh2_pdata.otg)
+                imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
+
+        /* SMSC9117 IRQ pin */
+        ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_SFS6), "sms9117-irq");
+        if (ret)
+                pr_warning("could not get LAN irq gpio\n");
+        else {
+                gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_SFS6));
+                platform_device_register(&smsc911x_device);
+        }
+}
+
+static void __init mx31lite_timer_init(void)
+{
+        mx31_clocks_init(26000000);
+}
+
+struct sys_timer mx31lite_timer = {
+        .init   = mx31lite_timer_init,
+};
+
+MACHINE_START(MX31LITE, "LogicPD i.MX31 SOM")
+        /* Maintainer: Freescale Semiconductor, Inc. */
+        .boot_params = MX3x_PHYS_OFFSET + 0x100,
+        .map_io = mx31lite_map_io,
+        .init_early = imx31_init_early,
+        .init_irq = mx31_init_irq,
+        .timer = &mx31lite_timer,
+        .init_machine = mx31lite_init,
+MACHINE_END