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authorAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
committerAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
commitb4b6116a13633898cf868f2f103c96a90c4c20f8 (patch)
tree93d1b7e2cfcdf473d8d4ff3ad141fa864f8491f6 /arch/arm/mach-imx/mach-mx31lite.c
parentedd4be777c953e5faafc80d091d3084b4343f5d3 (diff)
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fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84v3.3.2-1
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/arm/mach-imx/mach-mx31lite.c')
-rw-r--r--arch/arm/mach-imx/mach-mx31lite.c291
1 files changed, 291 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 00000000000..ef80751712e
--- /dev/null
+++ b/arch/arm/mach-imx/mach-mx31lite.c
@@ -0,0 +1,291 @@
+/*
+ * 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/moduleparam.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,
+};
+
+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;
+
+ imx31_soc_init();
+
+ 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. */
+ .atag_offset = 0x100,
+ .map_io = mx31lite_map_io,
+ .init_early = imx31_init_early,
+ .init_irq = mx31_init_irq,
+ .handle_irq = imx31_handle_irq,
+ .timer = &mx31lite_timer,
+ .init_machine = mx31lite_init,
+ .restart = mxc_restart,
+MACHINE_END