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authorArthur Heymans <arthur@aheymans.xyz>2017-05-25 19:55:52 +0200
committerMartin Roth <martinroth@google.com>2018-05-24 13:05:32 +0000
commit0d284959dcaf16416ce27b480339144fd6068bfe (patch)
tree5add4dd81fba292a6ef487ef2d1980e6b53c0e19 /src/northbridge/intel/x4x
parent3fa103a60261a3cd1925858a317dc1ffa89797f7 (diff)
downloadcoreboot-0d284959dcaf16416ce27b480339144fd6068bfe.tar.xz
nb/intel/x4x: Adapt post JEDEC for DDR3
Change-Id: I708f98dc2f36af73bb5933d186b4984649e149a1 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/19918 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'src/northbridge/intel/x4x')
-rw-r--r--src/northbridge/intel/x4x/raminit_ddr23.c19
-rw-r--r--src/northbridge/intel/x4x/raminit_tables.c17
-rw-r--r--src/northbridge/intel/x4x/x4x.h1
3 files changed, 33 insertions, 4 deletions
diff --git a/src/northbridge/intel/x4x/raminit_ddr23.c b/src/northbridge/intel/x4x/raminit_ddr23.c
index cbec4acf9f..4dbee329f6 100644
--- a/src/northbridge/intel/x4x/raminit_ddr23.c
+++ b/src/northbridge/intel/x4x/raminit_ddr23.c
@@ -2109,10 +2109,21 @@ void do_raminit(struct sysinfo *s, int fast_boot)
// After JEDEC reset
MCHBAR8(0x40) = MCHBAR8(0x40) & ~0x2;
FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) {
- if (s->selected_timings.mem_clk == MEM_CLOCK_667MHz)
- reg32 = (2 << 18) | (3 << 13) | (5 << 8);
- else
- reg32 = (2 << 18) | (3 << 13) | (4 << 8);
+ reg32 = (2 << 18);
+ reg32 |= post_jedec_tab[s->selected_timings.fsb_clk]
+ [s->selected_timings.mem_clk - MEM_CLOCK_667MHz][0]
+ << 13;
+ if (s->selected_timings.mem_clk == MEM_CLOCK_667MHz &&
+ s->selected_timings.fsb_clk == FSB_CLOCK_1066MHz &&
+ ch == 1) {
+ reg32 |= (post_jedec_tab[s->selected_timings.fsb_clk]
+ [s->selected_timings.mem_clk - MEM_CLOCK_667MHz][1]
+ - 1) << 8;
+ } else {
+ reg32 |= post_jedec_tab[s->selected_timings.fsb_clk]
+ [s->selected_timings.mem_clk - MEM_CLOCK_667MHz][1]
+ << 8;
+ }
MCHBAR32(0x400*ch + 0x274) = (MCHBAR32(0x400*ch + 0x274) & ~0xfff00) | reg32;
MCHBAR8(0x400*ch + 0x274) = MCHBAR8(0x400*ch + 0x274) & ~0x80;
MCHBAR8(0x400*ch + 0x26c) = MCHBAR8(0x400*ch + 0x26c) | 1;
diff --git a/src/northbridge/intel/x4x/raminit_tables.c b/src/northbridge/intel/x4x/raminit_tables.c
index 8ff93c9230..401af15cd8 100644
--- a/src/northbridge/intel/x4x/raminit_tables.c
+++ b/src/northbridge/intel/x4x/raminit_tables.c
@@ -289,6 +289,23 @@ const u8 ddr3_emrs1_rtt_nom_config[16][4] = { /* [Config][Rank] */
{0x81, 0x00, 0x81, 0x00}, /* 16S_16S */
};
+const u8 post_jedec_tab[3][4][2]= /* [FSB][DDR freq][17:13 or 12:8] */
+{ /* FSB DDR */
+ {{0x3, 0x5}, /* 800 667 */
+ {0x3, 0x4}, /* 800 800 */
+ },
+ {{0x4, 0x8}, /* 1067 667 */
+ {0x4, 0x6}, /* 1067 800 */
+ {0x3, 0x5}, /* 1067 1066 */
+ },
+ {{0x5, 0x9}, /* 1333 667 */
+ {0x4, 0x7}, /* 1333 800 */
+ {0x4, 0x7}, /* 1333 1066 */
+ {0x4, 0x7} /* 1333 1333 */
+ },
+};
+
+
const u32 ddr3_c2_tab[2][3][6][2] = { /* [n-mode][ddr3 freq][CAS][reg] */
/* 115h[15:0] 117h[23:0] */
{ /* 1N mode */
diff --git a/src/northbridge/intel/x4x/x4x.h b/src/northbridge/intel/x4x/x4x.h
index 13ca783ac9..95f618d1c6 100644
--- a/src/northbridge/intel/x4x/x4x.h
+++ b/src/northbridge/intel/x4x/x4x.h
@@ -392,6 +392,7 @@ extern const struct dll_setting default_ddr3_800_dq[2][TOTAL_BYTELANES];
extern const struct dll_setting default_ddr3_1067_dq[2][TOTAL_BYTELANES];
extern const struct dll_setting default_ddr3_1333_dq[2][TOTAL_BYTELANES];
extern const u8 ddr3_emrs1_rtt_nom_config[16][4];
+extern const u8 post_jedec_tab[3][4][2];
extern const u32 ddr3_c2_tab[2][3][6][2];
extern const u8 ddr3_c2_x264[3][6];
extern const u16 ddr3_c2_x23c[3][6];