On Thu, Sep 9, 2010 at 4:53 PM, Santosh Shilimkar
<santosh.shilim...@ti.com> wrote:
> On ES2.0 the L2 cache init parameter ineeds to be changed to take
> care of cache size. The cache size is 1MB on ES2.0 vs 512KB on ES1.0
>
> This patch fixes the init parameter to update the same using
> dynamic cpu version check
>
> Signed-off-by: Santosh Shilimkar <santosh.shilim...@ti.com>
> ---
>  arch/arm/mach-omap2/omap4-common.c |    5 ++++-
>  1 files changed, 4 insertions(+), 1 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/omap4-common.c 
> b/arch/arm/mach-omap2/omap4-common.c
> index 13dc979..2b32229 100644
> --- a/arch/arm/mach-omap2/omap4-common.c
> +++ b/arch/arm/mach-omap2/omap4-common.c
> @@ -64,7 +64,10 @@ static int __init omap_l2_cache_init(void)
>         * 32KB way size, 16-way associativity,
>         * parity disabled
>         */
> -       l2x0_init(l2cache_base, 0x0e050000, 0xc0000fff);
> +       if (omap_rev() == OMAP4430_REV_ES2_0)
> +               l2x0_init(l2cache_base, 0x0e070000, 0xc0000fff);
> +       else
> +               l2x0_init(l2cache_base, 0x0e050000, 0xc0000fff);


It's probably better to invert this check - you need 512 kB on ES1
alone, but ES2 and newer will need more. You need the exception only
for the ES1 case.

(else you will end up patching this section again with newer revisions as well).

- Anand
--
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