Messages in this thread | | | Date | Thu, 13 Jun 2013 15:19:58 +0200 | From | Nicolas Ferre <> | Subject | Re: [PATCH] Change the internal SRAM memory type MT_MEMORY_NONCACHED |
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On 08/06/2013 04:17, Wenyou Yang : > Because MT_DEVICE is not executable in armv7, we change > the internal SRAM memory type to MT_MEMORY_NONCACHED. > As it seems that caching this internal SRAM memory is not necessary, > we chose the this memory type. > > Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
But Russell, can we have your advice on this as you made us re-think about that during previous patch discussion?
Bye,
> --- > arch/arm/mach-at91/setup.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c > index a33d4b5..98d55ef 100644 > --- a/arch/arm/mach-at91/setup.c > +++ b/arch/arm/mach-at91/setup.c > @@ -84,7 +84,7 @@ void __init at91_init_sram(int bank, unsigned long base, unsigned int length) > > desc->pfn = __phys_to_pfn(base); > desc->length = length; > - desc->type = MT_DEVICE; > + desc->type = MT_MEMORY_NONCACHED; > > pr_info("AT91: sram at 0x%lx of 0x%x mapped at 0x%lx\n", > base, length, desc->virtual); >
-- Nicolas Ferre
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