Re: [PATCH 1/3] ARM: OMAP: Add support for USB on OMAP34XX

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On Wed, 5 Dec 2007 18:37:49 +0530, "Gadiyar, Anand" <gadiyar@xxxxxx> wrote:
> This patch adds support for USB on OMAP34XX.
> This adds a working board-3430sdp-usb.c file.
> 
> Signed-off-by: Anand Gadiyar <gadiyar@xxxxxx>
> Signed-off-by: Vikram Pandita <vikram.pandita@xxxxxx>
> Signed-off-by: Nishant Kamat <nskamat@xxxxxx>
> ---
>  arch/arm/mach-omap2/Makefile            |    3 -
>  arch/arm/mach-omap2/board-3430sdp-usb.c |   77
> ++++++++++++++++++++++++++++++++
>  arch/arm/mach-omap2/board-3430sdp.c     |    3 +
>  3 files changed, 82 insertions(+), 1 deletion(-)
> 
> Index: linux-omap/arch/arm/mach-omap2/Makefile
> ===================================================================
> --- linux-omap.orig/arch/arm/mach-omap2/Makefile	2007-12-05
> 10:02:53.000000000 +0530
> +++ linux-omap/arch/arm/mach-omap2/Makefile	2007-12-05 17:04:09.664182922
> +0530
> @@ -26,7 +26,8 @@
>  					   board-2430sdp-flash.o \
>  					   board-2430sdp-usb.o
>  obj-$(CONFIG_MACH_OMAP_2430OSK)		+= board-2430osk.o
> -obj-$(CONFIG_MACH_OMAP_3430SDP)		+= board-3430sdp.o
> +obj-$(CONFIG_MACH_OMAP_3430SDP)		+= board-3430sdp.o \
> +					   board-3430sdp-usb.o
>  obj-$(CONFIG_MACH_OMAP_APOLLON)		+= board-apollon.o \
>  					   board-apollon-mmc.o	\
>  					   board-apollon-keys.o
> Index: linux-omap/arch/arm/mach-omap2/board-3430sdp-usb.c
> ===================================================================
> --- /dev/null	1970-01-01 00:00:00.000000000 +0000
> +++ linux-omap/arch/arm/mach-omap2/board-3430sdp-usb.c	2007-12-05
> 17:04:09.664182922 +0530
> @@ -0,0 +1,77 @@
> +/*
> + * linux/arch/arm/mach-omap2/board-3430sdp-usb.c
> + *
> + * This file will contain the board specific details for the
> + * MENTOR USB OTG and Synopsys EHCI host controllers on OMAP3430
> + *
> + * Copyright (C) 2007 Texas Instruments
> + * Author: Vikram Pandita
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#include <linux/types.h>
> +#include <linux/errno.h>
> +#include <linux/delay.h>
> +#include <linux/platform_device.h>
> +#include <linux/usb/musb.h>
> +
> +#include <asm/arch/hardware.h>
> +#include <asm/arch/usb.h>
> +
> +#if defined(CONFIG_USB_MUSB_HDRC) ||
defined(CONFIG_USB_MUSB_HDRC_MODULE)

What about #ifdef CONFIG_USB_MUSB_SOC

> +static struct resource musb_resources[] = {
> +	[0] = {
> +		.start	= OMAP34XX_HSUSB_OTG_BASE,
> +		.end	= OMAP34XX_HSUSB_OTG_BASE + SZ_8K,
> +		.flags	= IORESOURCE_MEM,
> +	},
> +	[1] = {	/* general IRQ */
> +		.start	= INT_243X_HS_USB_MC,
> +		.flags	= IORESOURCE_IRQ,
> +	},
> +	[2] = {	/* DMA IRQ */
> +		.start	= INT_243X_HS_USB_DMA,
> +		.flags	= IORESOURCE_IRQ,
> +	},
> +};
> +
> +static struct musb_hdrc_platform_data musb_plat = {
> +#ifdef CONFIG_USB_MUSB_OTG
> +	.mode		= MUSB_OTG,
> +#elif defined(CONFIG_USB_MUSB_HDRC_HCD)
> +	.mode		= MUSB_HOST,
> +#elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
> +	.mode		= MUSB_PERIPHERAL,
> +#endif
> +	.multipoint	= 1,
> +	.clock 		= NULL,
> +	.set_clock	= NULL,
> +};
> +
> +static u64 musb_dmamask = ~(u32)0;
> +
> +static struct platform_device musb_device = {
> +	.name		= "musb_hdrc",
> +	.id		= 0,
> +	.dev = {
> +		.dma_mask		= &musb_dmamask,
> +		.coherent_dma_mask	= 0xffffffff,
> +		.platform_data		= &musb_plat,
> +	},
> +	.num_resources	= ARRAY_SIZE(musb_resources),
> +	.resource	= musb_resources,
> +};
> +#endif
> +
> +void __init sdp3430_usb_init(void)
> +{
> +#if	defined(CONFIG_USB_MUSB_HDRC) ||
defined(CONFIG_USB_MUSB_HDRC_MODULE)

dito

> +	if (platform_device_register(&musb_device) < 0) {
> +		printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
> +		return;
> +	}
> +#endif
> +}
> Index: linux-omap/arch/arm/mach-omap2/board-3430sdp.c
> ===================================================================
> --- linux-omap.orig/arch/arm/mach-omap2/board-3430sdp.c	2007-12-05
> 10:02:53.000000000 +0530
> +++ linux-omap/arch/arm/mach-omap2/board-3430sdp.c	2007-12-05
> 17:04:09.664182922 +0530
> @@ -307,6 +307,8 @@
>  	return 0;
>  }
> 
> +extern void __init sdp3430_usb_init(void);

This extern will look better in include/asm-arm/arch-omap/board-3430sdp.h

> +
>  static void __init omap_3430sdp_init(void)
>  {
>  	platform_add_devices(sdp3430_devices, ARRAY_SIZE(sdp3430_devices));
> @@ -316,6 +318,7 @@
>  				ARRAY_SIZE(sdp3430_spi_board_info));
>  	ads7846_dev_init();
>  	omap_serial_init();
> +	sdp3430_usb_init();
>  }
> 
>  static void __init omap_3430sdp_map_io(void)
> -
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-- 
Best Regards,

Felipe Balbi
http://felipebalbi.com
me@xxxxxxxxxxxxxxx

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