mx51: add support for efika smartbook

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 283 insertions, 0 deletions

diff --git a/arch/arm/mach-mx5/board-mx51_efikasb.c b/arch/arm/mach-mx5/board-mx51_efikasb.c
new file mode 100644
index 000000000000..18e29b9b088b
--- /dev/null
+++ b/arch/arm/mach-mx5/board-mx51_efikasb.c
@@ -0,0 +1,283 @@
+/*
+ * Copyright (C) Arnaud Patard <arnaud.patard@rtp-net.org>
+ *
+ * based on code from the following
+ * Copyright 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2009-2010 Pegatron Corporation. All Rights Reserved.
+ * Copyright 2009-2010 Genesi USA, Inc. All Rights Reserved.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/leds.h>
+#include <linux/input.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/fsl_devices.h>
+#include <linux/spi/flash.h>
+#include <linux/spi/spi.h>
+#include <linux/mfd/mc13892.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/consumer.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/ulpi.h>
+#include <mach/ulpi.h>
+
+#include <mach/common.h>
+#include <mach/hardware.h>
+#include <mach/iomux-mx51.h>
+#include <mach/i2c.h>
+#include <mach/mxc_ehci.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-imx51.h"
+#include "devices.h"
+#include "efika.h"
+
+#define EFIKASB_USBH2_STP       IMX_GPIO_NR(2, 20)
+#define EFIKASB_GREEN_LED       IMX_GPIO_NR(1, 3)
+#define EFIKASB_WHITE_LED       IMX_GPIO_NR(2, 25)
+#define EFIKASB_PCBID0          IMX_GPIO_NR(2, 28)
+#define EFIKASB_PCBID1          IMX_GPIO_NR(2, 29)
+#define EFIKASB_PWRKEY          IMX_GPIO_NR(2, 31)
+#define EFIKASB_LID             IMX_GPIO_NR(3, 14)
+#define EFIKASB_POWEROFF        IMX_GPIO_NR(4, 13)
+#define EFIKASB_RFKILL          IMX_GPIO_NR(3, 1)
+
+#define MX51_PAD_PWRKEY IOMUX_PAD(0x48c, 0x0f8, 1, 0x0,   0, PAD_CTL_PUS_100K_UP | PAD_CTL_PKE)
+
+static iomux_v3_cfg_t mx51efikasb_pads[] = {
+        /* USB HOST2 */
+        MX51_PAD_EIM_D16__USBH2_DATA0,
+        MX51_PAD_EIM_D17__USBH2_DATA1,
+        MX51_PAD_EIM_D18__USBH2_DATA2,
+        MX51_PAD_EIM_D19__USBH2_DATA3,
+        MX51_PAD_EIM_D20__USBH2_DATA4,
+        MX51_PAD_EIM_D21__USBH2_DATA5,
+        MX51_PAD_EIM_D22__USBH2_DATA6,
+        MX51_PAD_EIM_D23__USBH2_DATA7,
+        MX51_PAD_EIM_A24__USBH2_CLK,
+        MX51_PAD_EIM_A25__USBH2_DIR,
+        MX51_PAD_EIM_A26__USBH2_STP,
+        MX51_PAD_EIM_A27__USBH2_NXT,
+
+        /* leds */
+        MX51_PAD_EIM_CS0__GPIO2_25,
+        MX51_PAD_GPIO1_3__GPIO1_3,
+
+        /* pcb id */
+        MX51_PAD_EIM_CS3__GPIO2_28,
+        MX51_PAD_EIM_CS4__GPIO2_29,
+
+        /* lid */
+        MX51_PAD_CSI1_VSYNC__GPIO3_14,
+
+        /* power key*/
+        MX51_PAD_PWRKEY,
+
+        /* wifi/bt button */
+        MX51_PAD_DI1_PIN12__GPIO3_1,
+
+        /* power off */
+        MX51_PAD_CSI2_VSYNC__GPIO4_13,
+
+        /* wdog reset */
+        MX51_PAD_GPIO1_4__WDOG1_WDOG_B,
+
+        /* BT */
+        MX51_PAD_EIM_A17__GPIO2_11,
+};
+
+static int initialize_usbh2_port(struct platform_device *pdev)
+{
+        iomux_v3_cfg_t usbh2stp = MX51_PAD_EIM_A26__USBH2_STP;
+        iomux_v3_cfg_t usbh2gpio = MX51_PAD_EIM_A26__GPIO2_20;
+
+        mxc_iomux_v3_setup_pad(usbh2gpio);
+        gpio_request(EFIKASB_USBH2_STP, "usbh2_stp");
+        gpio_direction_output(EFIKASB_USBH2_STP, 0);
+        msleep(1);
+        gpio_set_value(EFIKASB_USBH2_STP, 1);
+        msleep(1);
+
+        gpio_free(EFIKASB_USBH2_STP);
+        mxc_iomux_v3_setup_pad(usbh2stp);
+
+        mdelay(10);
+
+        return mx51_initialize_usb_hw(pdev->id, MXC_EHCI_ITC_NO_THRESHOLD);
+}
+
+static struct mxc_usbh_platform_data usbh2_config = {
+        .init   = initialize_usbh2_port,
+        .portsc = MXC_EHCI_MODE_ULPI,
+};
+
+static void __init mx51_efikasb_usb(void)
+{
+        usbh2_config.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
+                                ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT |
+                                ULPI_OTG_EXTVBUSIND);
+        mxc_register_device(&mxc_usbh2_device, &usbh2_config);
+}
+
+static struct gpio_led mx51_efikasb_leds[] = {
+        {
+                .name = "efikasb:green",
+                .default_trigger = "default-on",
+                .gpio = EFIKASB_GREEN_LED,
+                .active_low = 1,
+        },
+        {
+                .name = "efikasb:white",
+                .default_trigger = "caps",
+                .gpio = EFIKASB_WHITE_LED,
+        },
+};
+
+static struct gpio_led_platform_data mx51_efikasb_leds_data = {
+        .leds = mx51_efikasb_leds,
+        .num_leds = ARRAY_SIZE(mx51_efikasb_leds),
+};
+
+static struct platform_device mx51_efikasb_leds_device = {
+        .name = "leds-gpio",
+        .id = -1,
+        .dev = {
+                .platform_data = &mx51_efikasb_leds_data,
+        },
+};
+
+static struct gpio_keys_button mx51_efikasb_keys[] = {
+        {
+                .code = KEY_POWER,
+                .gpio = EFIKASB_PWRKEY,
+                .type = EV_PWR,
+                .desc = "Power Button",
+                .wakeup = 1,
+                .debounce_interval = 10, /* ms */
+        },
+        {
+                .code = SW_LID,
+                .gpio = EFIKASB_LID,
+                .type = EV_SW,
+                .desc = "Lid Switch",
+        },
+        {
+                /* SW_RFKILLALL vs KEY_RFKILL ? */
+                .code = SW_RFKILL_ALL,
+                .gpio = EFIKASB_RFKILL,
+                .type = EV_SW,
+                .desc = "rfkill",
+        },
+};
+
+static const struct gpio_keys_platform_data mx51_efikasb_keys_data __initconst = {
+        .buttons = mx51_efikasb_keys,
+        .nbuttons = ARRAY_SIZE(mx51_efikasb_keys),
+};
+
+static struct regulator *pwgt1, *pwgt2;
+
+static void mx51_efikasb_power_off(void)
+{
+        gpio_set_value(EFIKA_USB_PHY_RESET, 0);
+
+        if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) {
+                regulator_disable(pwgt2);
+                regulator_disable(pwgt1);
+        }
+        gpio_direction_output(EFIKASB_POWEROFF, 1);
+}
+
+static int __init mx51_efikasb_power_init(void)
+{
+        if (machine_is_mx51_efikasb()) {
+                pwgt1 = regulator_get(NULL, "pwgt1");
+                pwgt2 = regulator_get(NULL, "pwgt2");
+                if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) {
+                        regulator_enable(pwgt1);
+                        regulator_enable(pwgt2);
+                }
+                gpio_request(EFIKASB_POWEROFF, "poweroff");
+                pm_power_off = mx51_efikasb_power_off;
+
+                regulator_has_full_constraints();
+        }
+
+        return 0;
+}
+late_initcall(mx51_efikasb_power_init);
+
+/* 01     R1.3 board
+   10     R2.0 board */
+static void __init mx51_efikasb_board_id(void)
+{
+        int id;
+
+        gpio_request(EFIKASB_PCBID0, "pcb id0");
+        gpio_direction_input(EFIKASB_PCBID0);
+        gpio_request(EFIKASB_PCBID1, "pcb id1");
+        gpio_direction_input(EFIKASB_PCBID1);
+
+        id = gpio_get_value(EFIKASB_PCBID0);
+        id |= gpio_get_value(EFIKASB_PCBID1) << 1;
+
+        switch (id) {
+        default:
+                break;
+        case 1:
+                system_rev = 0x13;
+                break;
+        case 2:
+                system_rev = 0x20;
+                break;
+        }
+}
+
+static void __init efikasb_board_init(void)
+{
+        mxc_iomux_v3_setup_multiple_pads(mx51efikasb_pads,
+                                        ARRAY_SIZE(mx51efikasb_pads));
+        efika_board_common_init();
+
+        mx51_efikasb_board_id();
+        mx51_efikasb_usb();
+        imx51_add_sdhci_esdhc_imx(1, NULL);
+
+        platform_device_register(&mx51_efikasb_leds_device);
+        imx51_add_gpio_keys(&mx51_efikasb_keys_data);
+
+}
+
+static void __init mx51_efikasb_timer_init(void)
+{
+        mx51_clocks_init(32768, 24000000, 22579200, 24576000);
+}
+
+static struct sys_timer mx51_efikasb_timer = {
+        .init   = mx51_efikasb_timer_init,
+};
+
+MACHINE_START(MX51_EFIKASB, "Genesi Efika Smartbook")
+        .boot_params = MX51_PHYS_OFFSET + 0x100,
+        .map_io = mx51_map_io,
+        .init_early = imx51_init_early,
+        .init_irq = mx51_init_irq,
+        .init_machine =  efikasb_board_init,
+        .timer = &mx51_efikasb_timer,
+MACHINE_END