diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc83xx/spd_sdram.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc83xx/spd_sdram.c | 36 |
1 files changed, 27 insertions, 9 deletions
diff --git a/arch/powerpc/cpu/mpc83xx/spd_sdram.c b/arch/powerpc/cpu/mpc83xx/spd_sdram.c index 5ca307ca58..8b5ecdb9ad 100644 --- a/arch/powerpc/cpu/mpc83xx/spd_sdram.c +++ b/arch/powerpc/cpu/mpc83xx/spd_sdram.c @@ -436,7 +436,7 @@ long int spd_sdram() else if (caslat == 4) ddr->debug_reg = 0x202c0000; /* CL=3.0 */ - __asm__ __volatile__ ("sync"); + sync(); debug("Errata DDR6 (debug_reg=0x%08x)\n", ddr->debug_reg); } @@ -765,7 +765,8 @@ long int spd_sdram() #endif debug("DDR:sdram_clk_cntl=0x%08x\n", ddr->sdram_clk_cntl); - asm("sync;isync"); + sync(); + isync(); udelay(600); @@ -834,7 +835,8 @@ long int spd_sdram() #endif /* Enable controller, and GO! */ ddr->sdram_cfg = sdram_cfg; - asm("sync;isync"); + sync(); + isync(); udelay(500); debug("DDR:sdram_cfg=0x%08x\n", ddr->sdram_cfg); @@ -843,6 +845,22 @@ long int spd_sdram() #endif /* CONFIG_SPD_EEPROM */ #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) +static inline u32 mftbu(void) +{ + u32 rval; + + asm volatile("mftbu %0" : "=r" (rval)); + return rval; +} + +static inline u32 mftb(void) +{ + u32 rval; + + asm volatile("mftb %0" : "=r" (rval)); + return rval; +} + /* * Use timebase counter, get_timer() is not available * at this point of initialization yet. @@ -858,9 +876,9 @@ static __inline__ unsigned long get_tbms (void) /* get the timebase ticks */ do { - asm volatile ("mftbu %0":"=r" (tbu1):); - asm volatile ("mftb %0":"=r" (tbl):); - asm volatile ("mftbu %0":"=r" (tbu2):); + tbu1 = mftbu(); + tbl = mftb(); + tbu2 = mftbu(); } while (tbu1 != tbu2); /* convert ticks to ms */ @@ -897,7 +915,7 @@ void ddr_enable_ecc(unsigned int dram_size) for (p = 0; p < (u64*)(size); p++) { ppcDWstore((u32*)p, pattern); } - __asm__ __volatile__ ("sync"); + sync(); #endif t_end = get_tbms(); @@ -922,8 +940,8 @@ void ddr_enable_ecc(unsigned int dram_size) /* Enable errors for ECC */ ddr->err_disable &= ECC_ERROR_ENABLE; - __asm__ __volatile__ ("sync"); - __asm__ __volatile__ ("isync"); + sync(); + isync(); } #endif /* CONFIG_DDR_ECC */ |