On 02/12/2014 08:04 PM, FengHua wrote:
-----Original Messages----- From: "York Sun" yorksun@freescale.com Sent Time: 2014-02-11 05:55:54 (Tuesday) To: albert.u.boot@aribaud.net Cc: scottwood@freescale.com, "York Sun" yorksun@freescale.com, "David Feng" fenghua@phytium.com.cn Subject: [PATCH 3/3] armv8/cache: Change cache invalidate and flush function
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diff --git a/arch/arm/cpu/armv8/start.S b/arch/arm/cpu/armv8/start.S index e70c51d..7b9ac21 100644 --- a/arch/arm/cpu/armv8/start.S +++ b/arch/arm/cpu/armv8/start.S @@ -65,9 +65,9 @@ reset: 0:
/* Cache/BPB/TLB Invalidate */
- bl __asm_flush_dcache_all /* dCache clean&invalidate */ bl __asm_invalidate_icache_all /* iCache invalidate */ bl __asm_invalidate_tlb_all /* invalidate TLBs */
How about remove the icache and tlb invalidate operations?
We can move the calling of __asm_invalidate_tlb_all to before mmu_setup, and move calling __asm_invalidate_icache_all to before icache_enable. But leaving them here makes sense as the initial setup procedure. And more important, it won't get lost. These functions run very fast, not like invalidating dcache.
York