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-rw-r--r--src/northbridge/intel/sandybridge/raminit_common.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/src/northbridge/intel/sandybridge/raminit_common.c b/src/northbridge/intel/sandybridge/raminit_common.c
index b21b5acc16..6639fd9a00 100644
--- a/src/northbridge/intel/sandybridge/raminit_common.c
+++ b/src/northbridge/intel/sandybridge/raminit_common.c
@@ -1944,7 +1944,6 @@ int write_training(ramctr_timing * ctrl)
{
int channel, slotrank, lane;
int err;
- volatile u32 tmp;
FOR_ALL_POPULATED_CHANNELS
MCHBAR32_OR(0x4008 + 0x400 * channel, 0x8000000);
@@ -1993,6 +1992,7 @@ int write_training(ramctr_timing * ctrl)
MCHBAR32_OR(0x5030, 8);
FOR_ALL_POPULATED_CHANNELS {
+ volatile u32 tmp;
MCHBAR32_AND(0x4020 + 0x400 * channel, ~0x00200000);
tmp = MCHBAR32(0x428c + 0x400 * channel);
wait_428c(channel);
@@ -2014,8 +2014,7 @@ int write_training(ramctr_timing * ctrl)
printram("CPF\n");
FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES {
- tmp = MCHBAR32(0x4080 + 0x400 * channel + 4 * lane);
- MCHBAR32(0x4080 + 0x400 * channel + 4 * lane) = 0;
+ MCHBAR32_AND(0x4080 + 0x400 * channel + 4 * lane, 0);
}
FOR_ALL_POPULATED_CHANNELS {
@@ -2039,8 +2038,7 @@ int write_training(ramctr_timing * ctrl)
program_timings(ctrl, channel);
FOR_ALL_CHANNELS FOR_ALL_POPULATED_RANKS FOR_ALL_LANES {
- tmp = MCHBAR32(0x4080 + 0x400 * channel + 4 * lane);
- MCHBAR32(0x4080 + 0x400 * channel + 4 * lane) = 0;
+ MCHBAR32_AND(0x4080 + 0x400 * channel + 4 * lane, 0);
}
return 0;
}
@@ -2591,7 +2589,6 @@ static int discover_edges_write_real(ramctr_timing *ctrl, int channel,
int lower[NUM_LANES];
int upper[NUM_LANES];
int pat;
- volatile u32 tmp;
FOR_ALL_LANES {
lower[lane] = 0;
@@ -2616,6 +2613,7 @@ static int discover_edges_write_real(ramctr_timing *ctrl, int channel,
program_timings(ctrl, channel);
FOR_ALL_LANES {
+ volatile u32 tmp;
MCHBAR32(0x4340 + 0x400 * channel +
4 * lane) = 0;
tmp = MCHBAR32(0x400 * channel +
@@ -2660,6 +2658,7 @@ static int discover_edges_write_real(ramctr_timing *ctrl, int channel,
MCHBAR32(0x4284 + 0x400 * channel) = 0xc0001;
wait_428c(channel);
FOR_ALL_LANES {
+ volatile u32 tmp;
tmp = MCHBAR32(0x4340 +
0x400 * channel + lane * 4);
}
@@ -3153,10 +3152,10 @@ void final_registers(ramctr_timing * ctrl)
}
printk(BIOS_DEBUG, "t123: %d, %d, %d\n",
t1_ns, t2_ns, t3_ns);
- MCHBAR32(0x5d10) = ((encode_5d10(t1_ns) + encode_5d10(t2_ns)) << 16) |
+ MCHBAR32_AND_OR(0x5d10, 0xC0C0C0C0,
+ ((encode_5d10(t1_ns) + encode_5d10(t2_ns)) << 16) |
(encode_5d10(t1_ns) << 8) | ((encode_5d10(t3_ns) +
- encode_5d10(t2_ns) + encode_5d10(t1_ns)) << 24) |
- (MCHBAR32(0x5d10) & 0xC0C0C0C0) | 0xc;
+ encode_5d10(t2_ns) + encode_5d10(t1_ns)) << 24) | 0xc);
}
void restore_timings(ramctr_timing * ctrl)