Re: [PATCH] ARM: LPC32xx: Support for OHCI HCD

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On 2/2/2012 9:06 PM, stigge@xxxxxxxxx wrote:
> This patch adds OHCI support to the LPC32xx ARM platform
> 
> Signed-off-by: Roland Stigge <stigge@xxxxxxxxx>
> 
> diff --git a/arch/arm/mach-lpc32xx/common.c b/arch/arm/mach-lpc32xx/common.c
> index 369b152..f220eb0 100644
> --- a/arch/arm/mach-lpc32xx/common.c
> +++ b/arch/arm/mach-lpc32xx/common.c
> @@ -137,6 +137,31 @@ struct platform_device lpc32xx_rtc_device = {
>  	.resource = lpc32xx_rtc_resources,
>  };
>  
> +#if defined(CONFIG_USB_OHCI_HCD)
> +/* The dmamask must be set for OHCI to work */
> +static u64 ohci_dmamask = ~(u32) 0;
> +static struct resource ohci_resources[] = {
> +	{
> +		.start = IO_ADDRESS(LPC32XX_USB_BASE),
> +		.end = IO_ADDRESS(LPC32XX_USB_BASE + 0x100),
> +		.flags = IORESOURCE_MEM,

The resource_size() gives you (0x100 + 1) not 0x100. Are you sure
.end is BASE + 0x100? or is it BASE + 0x100 - 1? sorry if I confused you.

Thanks,
Pavan

> +	}, {
> +		.start = IRQ_LPC32XX_USB_HOST,
> +		.flags = IORESOURCE_IRQ,
> +	},
> +};
> +struct platform_device lpc32xx_ohci_device = {
> +	.name = "usb-ohci",
> +	.id = -1,
> +	.dev = {
> +		.dma_mask = &ohci_dmamask,
> +		.coherent_dma_mask = 0xFFFFFFFF,
> +	},
> +	.num_resources = ARRAY_SIZE(ohci_resources),
> +	.resource = ohci_resources,
> +};
> +#endif


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