diff options
Diffstat (limited to 'src/northbridge/intel/x4x')
| -rw-r--r-- | src/northbridge/intel/x4x/raminit_ddr23.c | 31 |
1 files changed, 9 insertions, 22 deletions
diff --git a/src/northbridge/intel/x4x/raminit_ddr23.c b/src/northbridge/intel/x4x/raminit_ddr23.c index 1e40b9c511..efdcbb637a 100644 --- a/src/northbridge/intel/x4x/raminit_ddr23.c +++ b/src/northbridge/intel/x4x/raminit_ddr23.c @@ -2156,6 +2156,15 @@ void do_raminit(struct sysinfo *s, int fast_boot) MCHBAR32_OR(0x400*ch + 0x268, 0xc0000000); } + // Dummy reads + if (s->boot_path == BOOT_PATH_NORMAL) { + FOR_EACH_POPULATED_RANK(s->dimms, ch, r) { + for (bank = 0; bank < 4; bank++) + read32((u32 *)(test_address(ch, r) | 0x800000 | (bank << 12))); + } + } + printk(BIOS_DEBUG, "Done dummy reads\n"); + // Receive enable sdram_program_receive_enable(s, fast_boot); printk(BIOS_DEBUG, "Done rcven\n"); @@ -2171,28 +2180,6 @@ void do_raminit(struct sysinfo *s, int fast_boot) MCHBAR8_AND(0x5dc, ~0x80); MCHBAR8_OR(0x5dc, 0x80); - // Dummy writes / reads - if (s->boot_path == BOOT_PATH_NORMAL) { - volatile u32 data; - FOR_EACH_POPULATED_RANK(s->dimms, ch, r) { - for (bank = 0; bank < 4; bank++) { - reg32 = test_address(ch, r) | - (bank << 12); - write32((u32 *)reg32, 0xffffffff); - data = read32((u32 *)reg32); - printk(BIOS_DEBUG, "Wrote ones,"); - printk(BIOS_DEBUG, " Read: [0x%08x]=0x%08x\n", - reg32, data); - write32((u32 *)reg32, 0x00000000); - data = read32((u32 *)reg32); - printk(BIOS_DEBUG, "Wrote zeros,"); - printk(BIOS_DEBUG, " Read: [0x%08x]=0x%08x\n", - reg32, data); - } - } - } - printk(BIOS_DEBUG, "Done dummy reads\n"); - // XXX tRD if (!fast_boot) { |