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Commit 2aae4221 authored by Anand Gadiyar's avatar Anand Gadiyar Committed by Felipe Balbi
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arm: omap4: usb: explicitly configure MUSB pads 



Use the mux framework APIs to explicitly configure
the MUSB pads. The MUSB controller in OMAP4 can use
either the old ULPI interface, or the new internal PHY.
Configure the pads accordingly.

Signed-off-by: default avatarAnand Gadiyar <gadiyar@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent fe5a4901

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

+40 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ 
#include <mach/irqs.h>

#include <mach/am35xx.h>

#include <plat/usb.h>

#include "mux.h"



#if defined(CONFIG_USB_MUSB_OMAP2PLUS) || defined (CONFIG_USB_MUSB_AM35X)
@@ -88,6 +89,43 @@ static struct platform_device musb_device = { 
	.resource	= musb_resources,

};



static void usb_musb_mux_init(struct omap_musb_board_data *board_data)

{

	switch (board_data->interface_type) {

	case MUSB_INTERFACE_UTMI:

		omap_mux_init_signal("usba0_otg_dp", OMAP_PIN_INPUT);

		omap_mux_init_signal("usba0_otg_dm", OMAP_PIN_INPUT);

		break;

	case MUSB_INTERFACE_ULPI:

		omap_mux_init_signal("usba0_ulpiphy_clk",

						OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usba0_ulpiphy_stp",

						OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usba0_ulpiphy_dir",

						OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usba0_ulpiphy_nxt",

						OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usba0_ulpiphy_dat0",

						OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usba0_ulpiphy_dat1",

						OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usba0_ulpiphy_dat2",

						OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usba0_ulpiphy_dat3",

						OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usba0_ulpiphy_dat4",

						OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usba0_ulpiphy_dat5",

						OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usba0_ulpiphy_dat6",

						OMAP_PIN_INPUT_PULLDOWN);

		omap_mux_init_signal("usba0_ulpiphy_dat7",

						OMAP_PIN_INPUT_PULLDOWN);

		break;

	default:

		break;

	}

}

void __init usb_musb_init(struct omap_musb_board_data *board_data)

{

	if (cpu_is_omap243x()) {
@@ -102,6 +140,8 @@ void __init usb_musb_init(struct omap_musb_board_data *board_data) 
		musb_resources[0].start = OMAP44XX_HSUSB_OTG_BASE;

		musb_resources[1].start = OMAP44XX_IRQ_HS_USB_MC_N;

		musb_resources[2].start = OMAP44XX_IRQ_HS_USB_DMA_N;



		usb_musb_mux_init(board_data);

	}

	musb_resources[0].end = musb_resources[0].start + SZ_4K - 1;