diff options
Diffstat (limited to 'arch/arm/mach-mx3/mach-mx31_3ds.c')
| -rw-r--r-- | arch/arm/mach-mx3/mach-mx31_3ds.c | 124 |
1 files changed, 117 insertions, 7 deletions
diff --git a/arch/arm/mach-mx3/mach-mx31_3ds.c b/arch/arm/mach-mx3/mach-mx31_3ds.c index 0ad9e782108..4e516b49a90 100644 --- a/arch/arm/mach-mx3/mach-mx31_3ds.c +++ b/arch/arm/mach-mx3/mach-mx31_3ds.c @@ -22,8 +22,8 @@ #include <linux/mfd/mc13783.h> #include <linux/spi/spi.h> #include <linux/regulator/machine.h> -#include <linux/fsl_devices.h> -#include <linux/input/matrix_keypad.h> +#include <linux/usb/otg.h> +#include <linux/usb/ulpi.h> #include <mach/hardware.h> #include <asm/mach-types.h> @@ -34,6 +34,7 @@ #include <mach/common.h> #include <mach/iomux-mx3.h> #include <mach/3ds_debugboard.h> +#include <mach/ulpi.h> #include "devices-imx31.h" #include "devices.h" @@ -84,6 +85,21 @@ static int mx31_3ds_pins[] = { MX31_PIN_KEY_COL1_KEY_COL1, MX31_PIN_KEY_COL2_KEY_COL2, MX31_PIN_KEY_COL3_KEY_COL3, + /* USB Host 2 */ + IOMUX_MODE(MX31_PIN_USBH2_CLK, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_USBH2_DIR, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_USBH2_NXT, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_USBH2_STP, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_USBH2_DATA0, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_USBH2_DATA1, IOMUX_CONFIG_FUNC), + IOMUX_MODE(MX31_PIN_PC_VS2, IOMUX_CONFIG_ALT1), + IOMUX_MODE(MX31_PIN_PC_BVD1, IOMUX_CONFIG_ALT1), + IOMUX_MODE(MX31_PIN_PC_BVD2, IOMUX_CONFIG_ALT1), + IOMUX_MODE(MX31_PIN_PC_RST, IOMUX_CONFIG_ALT1), + IOMUX_MODE(MX31_PIN_IOIS16, IOMUX_CONFIG_ALT1), + IOMUX_MODE(MX31_PIN_PC_RW_B, IOMUX_CONFIG_ALT1), + /* USB Host2 reset */ + IOMUX_MODE(MX31_PIN_USB_BYP, IOMUX_CONFIG_GPIO), }; /* @@ -102,7 +118,7 @@ static const uint32_t mx31_3ds_keymap[] = { KEY(2, 3, KEY_F10), }; -static struct matrix_keymap_data mx31_3ds_keymap_data = { +static const struct matrix_keymap_data mx31_3ds_keymap_data __initconst = { .keymap = mx31_3ds_keymap, .keymap_size = ARRAY_SIZE(mx31_3ds_keymap), }; @@ -115,6 +131,13 @@ static struct regulator_init_data pwgtx_init = { }, }; +static struct regulator_init_data gpo_init = { + .constraints = { + .boot_on = 1, + .always_on = 1, + } +}; + static struct mc13783_regulator_init_data mx31_3ds_regulators[] = { { .id = MC13783_REGU_PWGT1SPI, /* Power Gate for ARM core. */ @@ -122,6 +145,13 @@ static struct mc13783_regulator_init_data mx31_3ds_regulators[] = { }, { .id = MC13783_REGU_PWGT2SPI, /* Power Gate for L2 Cache. */ .init_data = &pwgtx_init, + }, { + + .id = MC13783_REGU_GPO1, /* Turn on 1.8V */ + .init_data = &gpo_init, + }, { + .id = MC13783_REGU_GPO3, /* Turn on 3.3V */ + .init_data = &gpo_init, }, }; @@ -129,7 +159,7 @@ static struct mc13783_regulator_init_data mx31_3ds_regulators[] = { static struct mc13783_platform_data mc13783_pdata __initdata = { .regulators = mx31_3ds_regulators, .num_regulators = ARRAY_SIZE(mx31_3ds_regulators), - .flags = MC13783_USE_REGULATOR, + .flags = MC13783_USE_REGULATOR | MC13783_USE_TOUCHSCREEN, }; /* SPI */ @@ -175,6 +205,7 @@ mx31_3ds_nand_board_info __initconst = { PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU) #define USBOTG_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_PWR) +#define USBH2_RST_B IOMUX_TO_GPIO(MX31_PIN_USB_BYP) static int mx31_3ds_usbotg_init(void) { @@ -214,11 +245,77 @@ usbotg_free_reset: return err; } -static struct fsl_usb2_platform_data usbotg_pdata = { +static int mx31_3ds_host2_init(struct platform_device *pdev) +{ + int err; + + 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_PC_VS2, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_PC_BVD1, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_PC_BVD2, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_PC_RST, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_IOIS16, USB_PAD_CFG); + mxc_iomux_set_pad(MX31_PIN_PC_RW_B, USB_PAD_CFG); + + err = gpio_request(USBH2_RST_B, "usbh2-reset"); + if (err) { + pr_err("Failed to request the USB Host 2 reset gpio\n"); + return err; + } + + err = gpio_direction_output(USBH2_RST_B, 0); + if (err) { + pr_err("Failed to drive the USB Host 2 reset gpio\n"); + goto usbotg_free_reset; + } + + mdelay(1); + gpio_set_value(USBH2_RST_B, 1); + return 0; + +usbotg_free_reset: + gpio_free(USBH2_RST_B); + return err; +} + +#if defined(CONFIG_USB_ULPI) +static struct mxc_usbh_platform_data otg_pdata __initdata = { + .portsc = MXC_EHCI_MODE_ULPI, + .flags = MXC_EHCI_POWER_PINS_ENABLED, +}; + +static struct mxc_usbh_platform_data usbh2_pdata __initdata = { + .init = mx31_3ds_host2_init, + .portsc = MXC_EHCI_MODE_ULPI, + .flags = MXC_EHCI_POWER_PINS_ENABLED, +}; +#endif + +static const struct fsl_usb2_platform_data usbotg_pdata __initconst = { .operating_mode = FSL_USB2_DR_DEVICE, .phy_mode = FSL_USB2_PHY_ULPI, }; +static int otg_mode_host; + +static int __init mx31_3ds_otg_mode(char *options) +{ + if (!strcmp(options, "host")) + otg_mode_host = 1; + else if (!strcmp(options, "device")) + otg_mode_host = 0; + else + pr_info("otg_mode neither \"host\" nor \"device\". " + "Defaulting to device\n"); + return 0; +} +__setup("otg_mode=", mx31_3ds_otg_mode); + static const struct imxuart_platform_data uart_pdata __initconst = { .flags = IMXUART_HAVE_RTSCTS, }; @@ -246,14 +343,27 @@ static void __init mxc_board_init(void) spi_register_board_info(mx31_3ds_spi_devs, ARRAY_SIZE(mx31_3ds_spi_devs)); - mxc_register_device(&imx_kpp_device, &mx31_3ds_keymap_data); + imx31_add_imx_keypad(&mx31_3ds_keymap_data); mx31_3ds_usbotg_init(); - mxc_register_device(&mxc_otg_udc_device, &usbotg_pdata); +#if defined(CONFIG_USB_ULPI) + if (otg_mode_host) { + otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops, + ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT); + + imx31_add_mxc_ehci_otg(&otg_pdata); + } + usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops, + ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT); + imx31_add_mxc_ehci_hs(2, &usbh2_pdata); +#endif + if (!otg_mode_host) + imx31_add_fsl_usb2_udc(&usbotg_pdata); if (mxc_expio_init(MX31_CS5_BASE_ADDR, EXPIO_PARENT_INT)) printk(KERN_WARNING "Init of the debug board failed, all " "devices on the debug board are unusable.\n"); + imx31_add_imx2_wdt(NULL); } static void __init mx31_3ds_timer_init(void) |