X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Fasm-blackfin%2Fblackfin_local.h;h=e17d8a2003b2c3cb351248a3d8bec5e108be7185;hb=8206bfae3ab7f99965136384360ba2de0c6f4c3b;hp=6f0e662a95994cf9b9f0c445568ccda93e2d54bf;hpb=20c93959330aba8b5bbdbfde1ef319e99eba235d;p=oweals%2Fu-boot.git diff --git a/include/asm-blackfin/blackfin_local.h b/include/asm-blackfin/blackfin_local.h index 6f0e662a95..e17d8a2003 100644 --- a/include/asm-blackfin/blackfin_local.h +++ b/include/asm-blackfin/blackfin_local.h @@ -43,6 +43,9 @@ #define SCLK_TO_MSEC(sclk) ((MSEC_PER_SEC * ((sclk) / USEC_PER_MSEC)) / (BFIN_SCLK / USEC_PER_MSEC)) #define MSEC_TO_SCLK(msec) ((((BFIN_SCLK / USEC_PER_MSEC) * (msec)) / MSEC_PER_SEC) * USEC_PER_MSEC) +#define L1_CACHE_SHIFT 5 +#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) + #include #ifndef __ASSEMBLY__ @@ -52,25 +55,22 @@ # include +extern u_long get_vco(void); +extern u_long get_cclk(void); extern u_long get_sclk(void); # define bfin_revid() (*pCHIPID >> 28) extern void blackfin_icache_flush_range(const void *, const void *); extern void blackfin_dcache_flush_range(const void *, const void *); -extern void blackfin_dcache_invalidate_range(const void *, const void *); - -/* Use DMA to move data from on chip to external memory. While this is - * required for only L1 instruction (it is not directly readable by the - * core via data loads), it isn't a huge performance issue for other - * regions (it's probably even faster than core load/stores). However, - * the DMA engine does not have access to the L1 scratchpad, and we - * cannot use DMA inside of the MMR space. +extern void blackfin_icache_dcache_flush_range(const void *, const void *); +extern void blackfin_dcache_flush_invalidate_range(const void *, const void *); + +/* Use DMA to move data from on chip to external memory. The L1 instruction + * regions can only be accessed via DMA, so if the address in question is in + * that region, make sure we attempt to DMA indirectly. */ -# define addr_bfin_on_chip_mem(addr) \ - (((unsigned long)(addr) >= 0xef000000 && (unsigned long)addr < SYSMMR_BASE) && \ - !((unsigned long)(addr) >= L1_SRAM_SCRATCH && \ - (unsigned long)(addr) < L1_SRAM_SCRATCH_END)) +# define addr_bfin_on_chip_mem(addr) (((unsigned long)(addr) & 0xFFF00000) == 0xFFA00000) # include