Re: [PATCH 2/4][v3] OMAP:iommu support for OMAP4

[Tony Lindgren <tony@atomide.com>]

* Kanigeri, Hari <h-kanigeri2@ti.com> [100420 15:52]:
> From 9a2bcae7a2de6890884c23c45563eece1e6838de Mon Sep 17 00:00:00 2001
> From: Hari Kanigeri <h-kanigeri2@ti.com>
> Date: Tue, 20 Apr 2010 17:39:18 -0500
> Subject: [PATCH 2/4] OMAP:iommu support for OMAP4
> 
> This patch provides the iommu support for OMAP4 co-processors.
> 
> Signed-off-by: Hari Kanigeri <h-kanigeri2@ti.com>
> ---
>  arch/arm/mach-omap2/omap-iommu.c           |   26 ++++++++++++++++++++++++++
>  arch/arm/plat-omap/include/plat/omap44xx.h |    3 +++
>  2 files changed, 29 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-omap2/omap-iommu.c b/arch/arm/mach-omap2/omap-iommu.c
> index 416a65d..f569371 100644
> --- a/arch/arm/mach-omap2/omap-iommu.c
> +++ b/arch/arm/mach-omap2/omap-iommu.c
> @@ -13,6 +13,7 @@
>  #include <linux/platform_device.h>
>  
>  #include <plat/iommu.h>
> +#include <plat/irqs.h>
>  
>  struct iommu_device {
>  	resource_size_t base;
> @@ -46,6 +47,31 @@ static struct iommu_device devices[] = {
>  };
>  #endif
>  
> +#ifdef CONFIG_ARCH_OMAP4
> +static struct iommu_device devices[] = {
> +	{
> +		.base = OMAP4_MMU1_BASE,
> +		.irq = INT_44XX_DUCATI_MMU_IRQ,
> +		.pdata = {
> +			.name = "ducati",
> +			.nr_tlb_entries = 32,
> +			.clk_name = "ducati_ick",
> +		},
> +	},
> +#if defined(CONFIG_MPU_TESLA_IOMMU)
> +	{
> +		.base = OMAP4_MMU2_BASE,
> +		.irq = INT_44XX_DSP_MMU,
> +		.pdata = {
> +			.name = "tesla",
> +			.nr_tlb_entries = 32,
> +			.clk_name = "tesla_ick",
> +		},
> +	},
> +#endif
> +};
> +#endif

This should use:

static struct iommu_device *devices;

#ifdef CONFIG_ARCH_OMAP3
static struct iommu_device omap3_devices[] = {
...
#else
#define omap3_devices	NULL
#endif

#ifdef CONFIG_ARCH_OMAP4
static struct iommu_device omap4_devices[] = {
...
#else
#define omap4_devices	NULL
#endif

Then in init, just set devices based on the omap type.

Tony