nb/intel/x4x: Add a convenient macro to loop over bytelanes
During raminit a lot of procedures need to be done for each bytelane.
Change-Id: Ib9a30ffabaf5c845e962e3e79cf4a20faa1d9857
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/22347
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/northbridge/intel/x4x/raminit_ddr2.c b/src/northbridge/intel/x4x/raminit_ddr2.c
index f70cc6e..b967583 100644
--- a/src/northbridge/intel/x4x/raminit_ddr2.c
+++ b/src/northbridge/intel/x4x/raminit_ddr2.c
@@ -805,49 +805,46 @@
{
int ch, lane;
- FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) {
- for (lane = 0; lane < 8; lane++) {
- switch (s->selected_timings.mem_clk) {
- case MEM_CLOCK_667MHz:
+ FOR_EACH_POPULATED_CHANNEL_AND_BYTELANE(s->dimms, ch, lane) {
+ switch (s->selected_timings.mem_clk) {
+ case MEM_CLOCK_667MHz:
+ memcpy(s->dqs_settings[ch],
+ default_ddr2_667_dqs,
+ sizeof(s->dqs_settings[ch]));
+ memcpy(s->dq_settings[ch],
+ default_ddr2_667_dq,
+ sizeof(s->dq_settings[ch]));
+ s->rt_dqs[ch][lane].tap = 7;
+ s->rt_dqs[ch][lane].pi = 2;
+ break;
+ case MEM_CLOCK_800MHz:
+ if (s->spd_type == DDR2) {
memcpy(s->dqs_settings[ch],
- default_ddr2_667_dqs,
+ default_ddr2_800_dqs,
sizeof(s->dqs_settings[ch]));
memcpy(s->dq_settings[ch],
- default_ddr2_667_dq,
+ default_ddr2_800_dq,
sizeof(s->dq_settings[ch]));
s->rt_dqs[ch][lane].tap = 7;
- s->rt_dqs[ch][lane].pi = 2;
- break;
- case MEM_CLOCK_800MHz:
- if (s->spd_type == DDR2) {
- memcpy(s->dqs_settings[ch],
- default_ddr2_800_dqs,
- sizeof(s->dqs_settings[ch]));
- memcpy(s->dq_settings[ch],
- default_ddr2_800_dq,
- sizeof(s->dq_settings[ch]));
-
- s->rt_dqs[ch][lane].tap = 7;
- s->rt_dqs[ch][lane].pi = 0;
- } else { /* DDR3 */
- /* TODO: DDR3 write DQ-DQS */
- s->rt_dqs[ch][lane].tap = 6;
- s->rt_dqs[ch][lane].pi = 2;
- }
- break;
- case MEM_CLOCK_1066MHz:
- /* TODO: DDR3 write DQ-DQS */
- s->rt_dqs[ch][lane].tap = 5;
- s->rt_dqs[ch][lane].pi = 2;
- break;
- case MEM_CLOCK_1333MHz:
- /* TODO: DDR3 write DQ-DQS */
- s->rt_dqs[ch][lane].tap = 7;
s->rt_dqs[ch][lane].pi = 0;
- break;
- default: /* not supported */
- break;
+ } else { /* DDR3 */
+ /* TODO: DDR3 write DQ-DQS */
+ s->rt_dqs[ch][lane].tap = 6;
+ s->rt_dqs[ch][lane].pi = 2;
}
+ break;
+ case MEM_CLOCK_1066MHz:
+ /* TODO: DDR3 write DQ-DQS */
+ s->rt_dqs[ch][lane].tap = 5;
+ s->rt_dqs[ch][lane].pi = 2;
+ break;
+ case MEM_CLOCK_1333MHz:
+ /* TODO: DDR3 write DQ-DQS */
+ s->rt_dqs[ch][lane].tap = 7;
+ s->rt_dqs[ch][lane].pi = 0;
+ break;
+ default: /* not supported */
+ break;
}
}
}
@@ -863,7 +860,7 @@
int ch, lane, rank;
FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) {
- for (lane = 0; lane < 8; lane++) {
+ FOR_EACH_BYTELANE(lane) {
FOR_EACH_RANK_IN_CHANNEL(rank) {
rt_set_dqs(ch, lane, rank,
&s->rt_dqs[ch][lane]);
@@ -1140,7 +1137,7 @@
reg32 |= s->rcven_t[channel].min_common_coarse << 16;
MCHBAR32(0x400 * channel + 0x248) = reg32;
- for (lane = 0; lane < 8; lane++) {
+ FOR_EACH_BYTELANE(lane) {
medium |= s->rcven_t[channel].medium[lane]
<< (lane * 2);
coarse_offset |=
diff --git a/src/northbridge/intel/x4x/raminit_tables.c b/src/northbridge/intel/x4x/raminit_tables.c
index f386b6b..9a39b28 100644
--- a/src/northbridge/intel/x4x/raminit_tables.c
+++ b/src/northbridge/intel/x4x/raminit_tables.c
@@ -29,7 +29,7 @@
{4, 1, 0, 0, 0, 0}, /* ctrl3 */
};
-const struct dll_setting default_ddr2_667_dqs[8] = {
+const struct dll_setting default_ddr2_667_dqs[TOTAL_BYTELANES] = {
{1, 5, 1, 1, 1, 0},
{1, 6, 1, 1, 1, 0},
{2, 0, 1, 1, 1, 0},
@@ -40,7 +40,7 @@
{14, 0, 1, 0, 0, 0},
};
-const struct dll_setting default_ddr2_667_dq[8] = {
+const struct dll_setting default_ddr2_667_dq[TOTAL_BYTELANES] = {
{9, 0, 0, 0, 1, 0},
{9, 1, 0, 0, 1, 0},
{9, 2, 0, 0, 1, 0},
@@ -62,7 +62,7 @@
{0, 5, 1, 1, 0, 0},
};
-const struct dll_setting default_ddr2_800_dqs[8] = {
+const struct dll_setting default_ddr2_800_dqs[TOTAL_BYTELANES] = {
{2, 5, 1, 1, 1, 0},
{2, 6, 1, 1, 1, 0},
{3, 0, 1, 1, 1, 0},
@@ -73,7 +73,7 @@
{0, 3, 1, 1, 1, 0},
};
-const struct dll_setting default_ddr2_800_dq[8] = {
+const struct dll_setting default_ddr2_800_dq[TOTAL_BYTELANES] = {
{9, 3, 0, 0, 1, 0},
{9, 4, 0, 0, 1, 0},
{9, 5, 0, 0, 1, 0},
@@ -104,7 +104,7 @@
{3, 6, 0, 0, 0, 0}, }
};
-const struct dll_setting default_ddr3_800_dqs[2][8] = {
+const struct dll_setting default_ddr3_800_dqs[2][TOTAL_BYTELANES] = {
{ /* 1N */
{12, 0, 1, 0, 0, 0},
{1, 1, 1, 1, 1, 0},
@@ -125,7 +125,7 @@
{0, 3, 1, 1, 1, 0}, }
};
-const struct dll_setting default_ddr3_800_dq[2][8] = {
+const struct dll_setting default_ddr3_800_dq[2][TOTAL_BYTELANES] = {
{ /* 1N */
{4, 1, 0, 0, 1, 0},
{6, 4, 0, 0, 1, 0},
@@ -165,7 +165,7 @@
{2, 2, 1, 1, 0, 0}, }
};
-const struct dll_setting default_ddr3_1067_dqs[2][8] = {
+const struct dll_setting default_ddr3_1067_dqs[2][TOTAL_BYTELANES] = {
{ /* 1N */
{2, 5, 1, 1, 1, 0},
{5, 1, 0, 0, 1, 0},
@@ -187,7 +187,7 @@
}
};
-const struct dll_setting default_ddr3_1067_dq[2][8] = {
+const struct dll_setting default_ddr3_1067_dq[2][TOTAL_BYTELANES] = {
{ /* 1N */
{6, 5, 0, 0, 1, 0},
{9, 3, 1, 0, 1, 0},
@@ -228,7 +228,7 @@
{4, 5, 0, 0, 0, 0}, }
};
-const struct dll_setting default_ddr3_1333_dqs[2][8] = {
+const struct dll_setting default_ddr3_1333_dqs[2][TOTAL_BYTELANES] = {
{ /* 1N */
{2, 4, 1, 1, 1, 0},
{5, 1, 0, 0, 1, 0},
@@ -249,7 +249,7 @@
{9, 6, 0, 0, 1, 0}, }
};
-const struct dll_setting default_ddr3_1333_dq[2][8] = {
+const struct dll_setting default_ddr3_1333_dq[2][TOTAL_BYTELANES] = {
{ /* 1N */
{6, 5, 0, 0, 1, 0},
{9, 3, 1, 0, 1, 0},
diff --git a/src/northbridge/intel/x4x/rcven.c b/src/northbridge/intel/x4x/rcven.c
index ca66f29..e9a99fb 100644
--- a/src/northbridge/intel/x4x/rcven.c
+++ b/src/northbridge/intel/x4x/rcven.c
@@ -313,7 +313,7 @@
* unitialised.
*/
u32 addr = 0;
- struct rec_timing timing[8];
+ struct rec_timing timing[TOTAL_BYTELANES];
u8 mincoarse;
MCHBAR8(0x5d8) = MCHBAR8(0x5d8) & ~0xc;
@@ -329,7 +329,7 @@
addr = test_address(channel, rank);
break;
}
- for (lane = 0; lane < 8; lane++) {
+ FOR_EACH_BYTELANE(lane) {
printk(BIOS_DEBUG, "Channel %d, Lane %d addr=0x%08x\n",
channel, lane, addr);
timing[lane].coarse = (s->selected_timings.CAS + 1);
@@ -365,7 +365,7 @@
s->rcven_t[channel].min_common_coarse = mincoarse;
printk(BIOS_DEBUG, "Receive enable, final timings:\n");
/* Normalise coarse */
- for (lane = 0; lane < 8; lane++) {
+ FOR_EACH_BYTELANE(lane) {
if (timing[lane].coarse == 0)
reg8 = 0;
else
diff --git a/src/northbridge/intel/x4x/x4x.h b/src/northbridge/intel/x4x/x4x.h
index 3d2fdae..e63a055 100644
--- a/src/northbridge/intel/x4x/x4x.h
+++ b/src/northbridge/intel/x4x/x4x.h
@@ -161,6 +161,7 @@
#define TOTAL_CHANNELS 2
#define TOTAL_DIMMS 4
+#define TOTAL_BYTELANES 8
#define DIMMS_PER_CHANNEL (TOTAL_DIMMS / TOTAL_CHANNELS)
#define RAW_CARD_UNPOPULATED 0xff
#define RAW_CARD_POPULATED 0
@@ -215,6 +216,10 @@
FOR_EACH_CHANNEL(ch) FOR_EACH_RANK_IN_CHANNEL(r)
#define FOR_EACH_POPULATED_RANK(dimms, ch, r) \
FOR_EACH_RANK(ch, r) IF_RANK_POPULATED(dimms, ch, r)
+#define FOR_EACH_BYTELANE(l) \
+ for (l = 0; l < TOTAL_BYTELANES; l++)
+#define FOR_EACH_POPULATED_CHANNEL_AND_BYTELANE(dimms, ch, l) \
+ FOR_EACH_POPULATED_CHANNEL (dimms, ch) FOR_EACH_BYTELANE(l)
#define DDR3_MAX_CAS 18
@@ -308,10 +313,10 @@
struct rcven_timings {
u8 min_common_coarse;
- u8 coarse_offset[8];
- u8 medium[8];
- u8 tap[8];
- u8 pi[8];
+ u8 coarse_offset[TOTAL_BYTELANES];
+ u8 medium[TOTAL_BYTELANES];
+ u8 tap[TOTAL_BYTELANES];
+ u8 pi[TOTAL_BYTELANES];
};
/* The setup is up to two DIMMs per channel */
@@ -331,9 +336,9 @@
* The rt_dqs delay register for rank 0 seems to be used
* for all other ranks on the channel, so only save that
*/
- struct rt_dqs_setting rt_dqs[TOTAL_CHANNELS][8];
- struct dll_setting dqs_settings[TOTAL_CHANNELS][8];
- struct dll_setting dq_settings[TOTAL_CHANNELS][8];
+ struct rt_dqs_setting rt_dqs[TOTAL_CHANNELS][TOTAL_BYTELANES];
+ struct dll_setting dqs_settings[TOTAL_CHANNELS][TOTAL_BYTELANES];
+ struct dll_setting dq_settings[TOTAL_CHANNELS][TOTAL_BYTELANES];
};
#define BOOT_PATH_NORMAL 0
#define BOOT_PATH_WARM_RESET 1
@@ -367,16 +372,16 @@
extern const struct dll_setting default_ddr3_800_ctrl[2][7];
extern const struct dll_setting default_ddr3_1067_ctrl[2][7];
extern const struct dll_setting default_ddr3_1333_ctrl[2][7];
-extern const struct dll_setting default_ddr2_667_dqs[8];
-extern const struct dll_setting default_ddr2_800_dqs[8];
-extern const struct dll_setting default_ddr3_800_dqs[2][8];
-extern const struct dll_setting default_ddr3_1067_dqs[2][8];
-extern const struct dll_setting default_ddr3_1333_dqs[2][8];
-extern const struct dll_setting default_ddr2_667_dq[8];
-extern const struct dll_setting default_ddr2_800_dq[8];
-extern const struct dll_setting default_ddr3_800_dq[2][8];
-extern const struct dll_setting default_ddr3_1067_dq[2][8];
-extern const struct dll_setting default_ddr3_1333_dq[2][8];
+extern const struct dll_setting default_ddr2_667_dqs[TOTAL_BYTELANES];
+extern const struct dll_setting default_ddr2_800_dqs[TOTAL_BYTELANES];
+extern const struct dll_setting default_ddr3_800_dqs[2][TOTAL_BYTELANES];
+extern const struct dll_setting default_ddr3_1067_dqs[2][TOTAL_BYTELANES];
+extern const struct dll_setting default_ddr3_1333_dqs[2][TOTAL_BYTELANES];
+extern const struct dll_setting default_ddr2_667_dq[TOTAL_BYTELANES];
+extern const struct dll_setting default_ddr2_800_dq[TOTAL_BYTELANES];
+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];
struct acpi_rsdp;
#ifndef __SIMPLE_DEVICE__