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Commit becf0737 authored by Anand Gadiyar's avatar Anand Gadiyar
Browse files

arm: omap4: usb: add platform init code for EHCI 



- Add platform init code for EHCI on OMAP4
- Add pad configuration for PHY and TLL modes

Signed-off-by: default avatarAnand Gadiyar <gadiyar@ti.com>
Acked-by: default avatarTony Lindgren <tony@atomide.com>
parent 811406c2

arch/arm/mach-omap2/usb-ehci.c

+136 −8
Original line number Diff line number Diff line
@@ -34,22 +34,15 @@ 


static struct resource ehci_resources[] = {

	{

		.start	= OMAP34XX_EHCI_BASE,

		.end	= OMAP34XX_EHCI_BASE + SZ_1K - 1,

		.flags	= IORESOURCE_MEM,

	},

	{

		.start	= OMAP34XX_UHH_CONFIG_BASE,

		.end	= OMAP34XX_UHH_CONFIG_BASE + SZ_1K - 1,

		.flags	= IORESOURCE_MEM,

	},

	{

		.start	= OMAP34XX_USBTLL_BASE,

		.end	= OMAP34XX_USBTLL_BASE + SZ_4K - 1,

		.flags	= IORESOURCE_MEM,

	},

	{         /* general IRQ */

		.start   = INT_34XX_EHCI_IRQ,

		.flags   = IORESOURCE_IRQ,

	}

};
@@ -214,13 +207,148 @@ static void setup_ehci_io_mux(const enum ehci_hcd_omap_mode *port_mode) 
	return;

}



static void setup_4430ehci_io_mux(const enum ehci_hcd_omap_mode *port_mode)

{

	switch (port_mode[0]) {

	case EHCI_HCD_OMAP_MODE_PHY:

		omap_mux_init_signal("usbb1_ulpiphy_stp",

			OMAP_PIN_OUTPUT);

		omap_mux_init_signal("usbb1_ulpiphy_clk",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpiphy_dir",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpiphy_nxt",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpiphy_dat0",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpiphy_dat1",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpiphy_dat2",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpiphy_dat3",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpiphy_dat4",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpiphy_dat5",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpiphy_dat6",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpiphy_dat7",

			OMAP_PIN_INPUT_PULLDOWN);

			break;

	case EHCI_HCD_OMAP_MODE_TLL:

		omap_mux_init_signal("usbb1_ulpitll_stp",

			OMAP_PIN_INPUT_PULLUP);

		omap_mux_init_signal("usbb1_ulpitll_clk",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpitll_dir",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpitll_nxt",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpitll_dat0",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpitll_dat1",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpitll_dat2",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpitll_dat3",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpitll_dat4",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpitll_dat5",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpitll_dat6",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb1_ulpitll_dat7",

			OMAP_PIN_INPUT_PULLDOWN);

			break;

	case EHCI_HCD_OMAP_MODE_UNKNOWN:

	default:

			break;

	}

	switch (port_mode[1]) {

	case EHCI_HCD_OMAP_MODE_PHY:

		omap_mux_init_signal("usbb2_ulpiphy_stp",

			OMAP_PIN_OUTPUT);

		omap_mux_init_signal("usbb2_ulpiphy_clk",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpiphy_dir",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpiphy_nxt",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpiphy_dat0",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpiphy_dat1",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpiphy_dat2",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpiphy_dat3",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpiphy_dat4",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpiphy_dat5",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpiphy_dat6",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpiphy_dat7",

			OMAP_PIN_INPUT_PULLDOWN);

			break;

	case EHCI_HCD_OMAP_MODE_TLL:

		omap_mux_init_signal("usbb2_ulpitll_stp",

			OMAP_PIN_INPUT_PULLUP);

		omap_mux_init_signal("usbb2_ulpitll_clk",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpitll_dir",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpitll_nxt",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpitll_dat0",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpitll_dat1",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpitll_dat2",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpitll_dat3",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpitll_dat4",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpitll_dat5",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpitll_dat6",

			OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usbb2_ulpitll_dat7",

			OMAP_PIN_INPUT_PULLDOWN);

			break;

	case EHCI_HCD_OMAP_MODE_UNKNOWN:

	default:

			break;

	}

}



void __init usb_ehci_init(const struct ehci_hcd_omap_platform_data *pdata)

{

	platform_device_add_data(&ehci_device, pdata, sizeof(*pdata));



	/* Setup Pin IO MUX for EHCI */

	if (cpu_is_omap34xx())

	if (cpu_is_omap34xx()) {

		ehci_resources[0].start	= OMAP34XX_EHCI_BASE;

		ehci_resources[0].end	= OMAP34XX_EHCI_BASE + SZ_1K - 1;

		ehci_resources[1].start	= OMAP34XX_UHH_CONFIG_BASE;

		ehci_resources[1].end	= OMAP34XX_UHH_CONFIG_BASE + SZ_1K - 1;

		ehci_resources[2].start	= OMAP34XX_USBTLL_BASE;

		ehci_resources[2].end	= OMAP34XX_USBTLL_BASE + SZ_4K - 1;

		ehci_resources[3].start = INT_34XX_EHCI_IRQ;

		setup_ehci_io_mux(pdata->port_mode);

	} else if (cpu_is_omap44xx()) {

		ehci_resources[0].start	= OMAP44XX_HSUSB_EHCI_BASE;

		ehci_resources[0].end	= OMAP44XX_HSUSB_EHCI_BASE + SZ_1K - 1;

		ehci_resources[1].start	= OMAP44XX_UHH_CONFIG_BASE;

		ehci_resources[1].end	= OMAP44XX_UHH_CONFIG_BASE + SZ_2K - 1;

		ehci_resources[2].start	= OMAP44XX_USBTLL_BASE;

		ehci_resources[2].end	= OMAP44XX_USBTLL_BASE + SZ_4K - 1;

		ehci_resources[3].start = OMAP44XX_IRQ_EHCI;

		setup_4430ehci_io_mux(pdata->port_mode);

	}



	if (platform_device_register(&ehci_device) < 0) {

		printk(KERN_ERR "Unable to register HS-USB (EHCI) device\n");