diff options
| author | rick | 2017-08-29 10:12:02 +0800 |
|---|---|---|
| committer | Andes | 2017-09-21 10:30:22 +0800 |
| commit | e336b73d8ae06dbcc532d1833d7a5567babecca8 (patch) | |
| tree | 321b204124ad50381608dd5acc6ca8b1aa4b7892 /arch/nds32 | |
| parent | ce4e2370f70f4bbd79e553dca73ec4439bfd567e (diff) | |
nds32: ftmac100 support cache enable.
Enable cache and ftmac100 performance can be improved.
Signed-off-by: rick <rick@andestech.com>
Diffstat (limited to 'arch/nds32')
| -rw-r--r-- | arch/nds32/cpu/n1213/start.S | 29 | ||||
| -rw-r--r-- | arch/nds32/include/asm/io.h | 21 |
2 files changed, 49 insertions, 1 deletions
diff --git a/arch/nds32/cpu/n1213/start.S b/arch/nds32/cpu/n1213/start.S index f9f999902c2..0d98d03fc33 100644 --- a/arch/nds32/cpu/n1213/start.S +++ b/arch/nds32/cpu/n1213/start.S @@ -119,19 +119,46 @@ set_ivb: /* set IVIC, vector size: 4 bytes, base: 0x0 */ mtsr $r0, $ivb /* - * MMU_CTL NTC0 Cacheable/Write-Back + * MMU_CTL NTC0 Non-cacheable */ + li $r0, ~0x6 + mfsr $r1, $mr0 + and $r1, $r1, $r0 + mtsr $r1, $mr0 + li $r0, ~0x3 mfsr $r1, $mr8 and $r1, $r1, $r0 mtsr $r1, $mr8 #if (!defined(CONFIG_SYS_ICACHE_OFF) || !defined(CONFIG_SYS_DCACHE_OFF)) +/* + * MMU_CTL NTC0 Cacheable/Write-Back + */ li $r0, 0x4 mfsr $r1, $mr0 or $r1, $r1, $r0 mtsr $r1, $mr0 #endif +#ifndef CONFIG_SYS_DCACHE_OFF +#ifdef CONFIG_ARCH_MAP_SYSMEM +/* + * MMU_CTL NTC1 Non-cacheable + */ + li $r0, ~0x18 + mfsr $r1, $mr0 + and $r1, $r1, $r0 + mtsr $r1, $mr0 +/* + * MMU_CTL NTM1 mapping for partition 0 + */ + li $r0, ~0x6000 + mfsr $r1, $mr0 + and $r1, $r1, $r0 + mtsr $r1, $mr0 +#endif +#endif + #if !defined(CONFIG_SYS_ICACHE_OFF) li $r0, 0x1 mfsr $r1, $mr8 diff --git a/arch/nds32/include/asm/io.h b/arch/nds32/include/asm/io.h index b2c4d0ef8cf..e8ee9615264 100644 --- a/arch/nds32/include/asm/io.h +++ b/arch/nds32/include/asm/io.h @@ -48,6 +48,27 @@ static inline void sync(void) #define MAP_WRBACK (0) #define MAP_WRTHROUGH (0) +#ifdef CONFIG_ARCH_MAP_SYSMEM +static inline void *map_sysmem(phys_addr_t paddr, unsigned long len) +{ + if(paddr <PHYS_SDRAM_0_SIZE + PHYS_SDRAM_1_SIZE) + paddr = paddr | 0x40000000; + return (void *)(uintptr_t)paddr; +} + +static inline void *unmap_sysmem(const void *vaddr) +{ + phys_addr_t paddr = (phys_addr_t)vaddr; + paddr = paddr & ~0x40000000; + return (void *)(uintptr_t)paddr; +} + +static inline phys_addr_t map_to_sysmem(const void *ptr) +{ + return (phys_addr_t)(uintptr_t)ptr; +} +#endif + static inline void * map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags) { |