From: rick rick@andestech.com
Enable cache and ftmac100 performance can be improved.
Signed-off-by: rick rick@andestech.com --- arch/nds32/cpu/n1213/start.S | 29 ++++++++++++++++++++++++++++- arch/nds32/include/asm/io.h | 21 +++++++++++++++++++++ include/configs/adp-ae3xx.h | 3 +-- include/configs/adp-ag101p.h | 3 +-- 4 files changed, 51 insertions(+), 5 deletions(-)
diff --git a/arch/nds32/cpu/n1213/start.S b/arch/nds32/cpu/n1213/start.S index f9f9999..0d98d03 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 b2c4d0e..e8ee961 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) { diff --git a/include/configs/adp-ae3xx.h b/include/configs/adp-ae3xx.h index cef1edd..fc04934 100644 --- a/include/configs/adp-ae3xx.h +++ b/include/configs/adp-ae3xx.h @@ -23,8 +23,7 @@ #define CONFIG_CMDLINE_EDITING #define CONFIG_PANIC_HANG
-#define CONFIG_SYS_ICACHE_OFF -#define CONFIG_SYS_DCACHE_OFF +#define CONFIG_ARCH_MAP_SYSMEM
#define CONFIG_BOOTP_SEND_HOSTNAME #define CONFIG_BOOTP_SERVERIP diff --git a/include/configs/adp-ag101p.h b/include/configs/adp-ag101p.h index f966278..a96213c 100644 --- a/include/configs/adp-ag101p.h +++ b/include/configs/adp-ag101p.h @@ -22,8 +22,7 @@
#define CONFIG_CMDLINE_EDITING
-#define CONFIG_SYS_ICACHE_OFF -#define CONFIG_SYS_DCACHE_OFF +#define CONFIG_ARCH_MAP_SYSMEM
#define CONFIG_BOOTP_SEND_HOSTNAME #define CONFIG_BOOTP_SERVERIP