diff options
Diffstat (limited to 'c/src/lib/libbsp/m68k/uC5282/startup/bspstart.c')
| -rw-r--r-- | c/src/lib/libbsp/m68k/uC5282/startup/bspstart.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/c/src/lib/libbsp/m68k/uC5282/startup/bspstart.c b/c/src/lib/libbsp/m68k/uC5282/startup/bspstart.c index 260db55f3f..4dbd9c0470 100644 --- a/c/src/lib/libbsp/m68k/uC5282/startup/bspstart.c +++ b/c/src/lib/libbsp/m68k/uC5282/startup/bspstart.c @@ -278,11 +278,16 @@ void bsp_start( void ) /* * Cache SDRAM + * Enable buffered writes + * As Device Errata SECF124 notes this may cause double writes, + * but that's not really a big problem and benchmarking tests have + * shown that buffered writes do gain some performance. */ mcf5282_acr0_mode = MCF5XXX_ACR_AB((uint32_t)_RamBase) | MCF5XXX_ACR_AM((uint32_t)_RamSize-1) | MCF5XXX_ACR_EN | - MCF5XXX_ACR_SM_IGNORE; + MCF5XXX_ACR_SM_IGNORE | + MCF5XXX_ACR_BWE; m68k_set_acr0(mcf5282_acr0_mode); /* |