X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=cpu%2Fmips%2Fcpu.c;h=8b43d8eb36281c0522e58649c852c0e28d96151a;hb=3596d55eb22703d3f4f1b839fe4b000fabe081b3;hp=f48675e9967da799ce3303a983bbf142592ecaa2;hpb=f4863a7aec41f1f78fe93eade700b15b287a5ef7;p=oweals%2Fu-boot.git diff --git a/cpu/mips/cpu.c b/cpu/mips/cpu.c index f48675e996..8b43d8eb36 100644 --- a/cpu/mips/cpu.c +++ b/cpu/mips/cpu.c @@ -23,28 +23,49 @@ #include #include -#include #include +#include +#include + +#define cache_op(op,addr) \ + __asm__ __volatile__( \ + " .set push \n" \ + " .set noreorder \n" \ + " .set mips3\n\t \n" \ + " cache %0, %1 \n" \ + " .set pop \n" \ + : \ + : "i" (op), "R" (*(unsigned char *)(addr))) + +void __attribute__((weak)) _machine_restart(void) +{ +} int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { -#if defined(CONFIG_INCA_IP) - *INCA_IP_WDT_RST_REQ = 0x3f; -#elif defined(CONFIG_PURPLE) || defined(CONFIG_TB0229) - void (*f)(void) = (void *) 0xbfc00000; + _machine_restart(); - f(); -#endif fprintf(stderr, "*** reset failed ***\n"); return 0; } -void flush_cache (ulong start_addr, ulong size) +void flush_cache(ulong start_addr, ulong size) { + unsigned long lsize = CFG_CACHELINE_SIZE; + unsigned long addr = start_addr & ~(lsize - 1); + unsigned long aend = (start_addr + size - 1) & ~(lsize - 1); + while (1) { + cache_op(Hit_Writeback_Inv_D, start_addr); + cache_op(Hit_Invalidate_I, start_addr); + if (addr == aend) + break; + addr += lsize; + } } -void write_one_tlb( int index, u32 pagemask, u32 hi, u32 low0, u32 low1 ){ +void write_one_tlb(int index, u32 pagemask, u32 hi, u32 low0, u32 low1) +{ write_32bit_cp0_register(CP0_ENTRYLO0, low0); write_32bit_cp0_register(CP0_PAGEMASK, pagemask); write_32bit_cp0_register(CP0_ENTRYLO1, low1);