diff options
| -rw-r--r-- | firmware/target/arm/as3525/system-as3525.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/firmware/target/arm/as3525/system-as3525.c b/firmware/target/arm/as3525/system-as3525.c index 60fe703..ecb9736 100644 --- a/firmware/target/arm/as3525/system-as3525.c +++ b/firmware/target/arm/as3525/system-as3525.c @@ -209,9 +209,11 @@ static void sdram_init(void) MPMC_DYNAMIC_CONTROL = 0x82; /* SDRAM MODE, MPMCCLKOUT runs continuously */ - /* this part is required, if you know why please explain */ - unsigned int tmp = *(volatile unsigned int*)(0x30000000+0x2300*MEM); - (void)tmp; /* we just need to read from this location */ + /* program the SDRAM mode register */ + /* FIXME: details the exact settings of mode register */ + asm volatile( + "ldr r4, [%0]\n" + : : "p"(0x30000000+0x2300*MEM) : "r4"); MPMC_DYNAMIC_CONTROL = 0x2; /* SDRAM NORMAL, MPMCCLKOUT runs continuously */ |