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ARM: mx3/mx31_3ds: Add support for USB Host2 port 

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
hifive-unleashed-5.1
Fabio Estevam 2010-12-21 16:38:22 -02:00 committed by Sascha Hauer
parent 1c50e67263
commit 0d95b75e2d
1 changed files with 77 additions and 0 deletions
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77
arch/arm/mach-mx3/mach-mx31_3ds.c
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@ -85,6 +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),
};
/*
@ -116,6 +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. */
@ -123,6 +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,
},
};
@ -176,6 +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)
{
@ -215,11 +245,55 @@ usbotg_free_reset:
return err;
}
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 = {
@ -279,6 +353,9 @@ static void __init mxc_board_init(void)
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);