[coreboot-gerrit] Change in coreboot[master]: nb/intel/x4x: Use a struct for dll settings instead of an array
Arthur Heymans (Code Review)
gerrit at coreboot.org
Thu May 18 21:52:18 CEST 2017
Arthur Heymans has uploaded a new change for review. ( https://review.coreboot.org/19767 )
Change subject: nb/intel/x4x: Use a struct for dll settings instead of an array
......................................................................
nb/intel/x4x: Use a struct for dll settings instead of an array
This makes to code more readable since it avoids messing with two
dimensional arrays and needing remember what the indices mean.
Also introduces an unused coarse element which is 0 for all default
DLL settings on DDR2.
Change-Id: I28377d2d15d0e6a0d12545b837d6369e0dc26b92
Signed-off-by: Arthur Heymans <arthur at aheymans.xyz>
---
M src/northbridge/intel/x4x/raminit_ddr2.c
M src/northbridge/intel/x4x/x4x.h
2 files changed, 113 insertions(+), 104 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/67/19767/1
diff --git a/src/northbridge/intel/x4x/raminit_ddr2.c b/src/northbridge/intel/x4x/raminit_ddr2.c
index 35caaa6..912c86c 100644
--- a/src/northbridge/intel/x4x/raminit_ddr2.c
+++ b/src/northbridge/intel/x4x/raminit_ddr2.c
@@ -313,177 +313,177 @@
MCHBAR32(0x2c4) = (MCHBAR32(0x2c4) & ~0xf) | 0xc;
}
-static void clkset0(u8 ch, u8 setting[5])
+static void clkset0(u8 ch, const struct dll_setting *setting)
{
MCHBAR16(0x400*ch + 0x5a0) = (MCHBAR16(0x400*ch + 0x5a0) & ~0xc440) |
- (setting[4] << 14) |
- (setting[3] << 6) |
- (setting[2] << 10);
+ (setting->clk_delay << 14) |
+ (setting->db_sel << 6) |
+ (setting->db_en << 10);
MCHBAR8(0x400*ch + 0x581) = (MCHBAR8(0x400*ch + 0x581) & ~0x70) |
- (setting[1] << 4);
+ (setting->pi << 4);
MCHBAR8(0x400*ch + 0x581) = (MCHBAR8(0x400*ch + 0x581) & ~0xf) |
- setting[0];
+ setting->tap;
}
-static void clkset1(u8 ch, u8 setting[5])
+static void clkset1(u8 ch, const struct dll_setting *setting)
{
MCHBAR32(0x400*ch + 0x5a0) = (MCHBAR32(0x400*ch + 0x5a0) & ~0x30880) |
- (setting[4] << 16) |
- (setting[3] << 7) |
- (setting[2] << 11);
+ (setting->clk_delay << 16) |
+ (setting->db_sel << 7) |
+ (setting->db_en << 11);
MCHBAR8(0x400*ch + 0x582) = (MCHBAR8(0x400*ch + 0x582) & ~0x70) |
- (setting[1] << 4);
+ (setting->pi << 4);
MCHBAR8(0x400*ch + 0x582) = (MCHBAR8(0x400*ch + 0x582) & ~0xf) |
- setting[0];
+ setting->tap;
}
-static void ctrlset0(u8 ch, u8 setting[5])
+static void ctrlset0(u8 ch, const struct dll_setting *setting)
{
MCHBAR32(0x400*ch + 0x59c) = (MCHBAR32(0x400*ch + 0x59c) & ~0x3300000) |
- (setting[4] << 24) |
- (setting[3] << 20) |
- (setting[2] << 21);
+ (setting->clk_delay << 24) |
+ (setting->db_sel << 20) |
+ (setting->db_en << 21);
MCHBAR8(0x400*ch + 0x584) = (MCHBAR8(0x400*ch + 0x584) & ~0x70) |
- (setting[1] << 4);
+ (setting->pi << 4);
MCHBAR8(0x400*ch + 0x584) = (MCHBAR8(0x400*ch + 0x584) & ~0xf) |
- setting[0];
+ setting->tap;
}
-static void ctrlset1(u8 ch, u8 setting[5])
+static void ctrlset1(u8 ch, const struct dll_setting *setting)
{
MCHBAR32(0x400*ch + 0x59c) = (MCHBAR32(0x400*ch + 0x59c) & ~0x18c00000) |
- (setting[4] << 27) |
- (setting[3] << 22) |
- (setting[2] << 23);
+ (setting->clk_delay << 27) |
+ (setting->db_sel << 22) |
+ (setting->db_en << 23);
MCHBAR8(0x400*ch + 0x585) = (MCHBAR8(0x400*ch + 0x585) & ~0x70) |
- (setting[1] << 4);
+ (setting->pi << 4);
MCHBAR8(0x400*ch + 0x585) = (MCHBAR8(0x400*ch + 0x585) & ~0xf) |
- setting[0];
+ setting->tap;
}
-static void ctrlset2(u8 ch, u8 setting[5])
+static void ctrlset2(u8 ch, const struct dll_setting *setting)
{
MCHBAR32(0x400*ch + 0x598) = (MCHBAR32(0x400*ch + 0x598) & ~0x18c00000) |
- (setting[4] << 14) |
- (setting[3] << 12) |
- (setting[2] << 13);
+ (setting->clk_delay << 14) |
+ (setting->db_sel << 12) |
+ (setting->db_en << 13);
MCHBAR8(0x400*ch + 0x586) = (MCHBAR8(0x400*ch + 0x586) & ~0x70) |
- (setting[1] << 4);
+ (setting->pi << 4);
MCHBAR8(0x400*ch + 0x586) = (MCHBAR8(0x400*ch + 0x586) & ~0xf) |
- setting[0];
+ setting->tap;
}
-static void ctrlset3(u8 ch, u8 setting[5])
+static void ctrlset3(u8 ch, const struct dll_setting *setting)
{
MCHBAR32(0x400*ch + 0x598) = (MCHBAR32(0x400*ch + 0x598) & ~0x18c00000) |
- (setting[4] << 10) |
- (setting[3] << 8) |
- (setting[2] << 9);
+ (setting->clk_delay << 10) |
+ (setting->db_sel << 8) |
+ (setting->db_en << 9);
MCHBAR8(0x400*ch + 0x587) = (MCHBAR8(0x400*ch + 0x587) & ~0x70) |
- (setting[1] << 4);
+ (setting->pi << 4);
MCHBAR8(0x400*ch + 0x587) = (MCHBAR8(0x400*ch + 0x587) & ~0xf) |
- setting[0];
+ setting->tap;
}
-static void cmdset(u8 ch, u8 setting[5])
+static void cmdset(u8 ch, const struct dll_setting *setting)
{
MCHBAR8(0x400*ch + 0x598) = (MCHBAR8(0x400*ch + 0x598) & ~0x30) |
- (setting[4] << 4);
+ (setting->clk_delay << 4);
MCHBAR8(0x400*ch + 0x594) = (MCHBAR8(0x400*ch + 0x594) & ~0x60) |
- (setting[3] << 5) |
- (setting[2] << 6);
+ (setting->db_sel << 5) |
+ (setting->db_en << 6);
MCHBAR8(0x400*ch + 0x580) = (MCHBAR8(0x400*ch + 0x580) & ~0x70) |
- (setting[1] << 4);
+ (setting->pi << 4);
MCHBAR8(0x400*ch + 0x580) = (MCHBAR8(0x400*ch + 0x580) & ~0xf) |
- setting[0];
+ setting->tap;
}
-static void dqsset(u8 ch, u8 lane, u8 setting[5])
+static void dqsset(u8 ch, u8 lane, const struct dll_setting *setting)
{
MCHBAR32(0x400*ch + 0x5fc) = MCHBAR32(0x400*ch + 0x5fc) & ~(2 << (lane*4));
MCHBAR32(0x400*ch + 0x5b4) = (MCHBAR32(0x400*ch + 0x5b4) & ~(0x201 << lane)) |
- (setting[2] << (9 + lane)) |
- (setting[3] << lane);
+ (setting->db_en << (9 + lane)) |
+ (setting->db_sel << lane);
MCHBAR32(0x400*ch + 0x5b8) = (MCHBAR32(0x400*ch + 0x5b8) & ~(0x201 << lane)) |
- (setting[2] << (9 + lane)) |
- (setting[3] << lane);
+ (setting->db_en << (9 + lane)) |
+ (setting->db_sel << lane);
MCHBAR32(0x400*ch + 0x5bc) = (MCHBAR32(0x400*ch + 0x5bc) & ~(0x201 << lane)) |
- (setting[2] << (9 + lane)) |
- (setting[3] << lane);
+ (setting->db_en << (9 + lane)) |
+ (setting->db_sel << lane);
MCHBAR32(0x400*ch + 0x5c0) = (MCHBAR32(0x400*ch + 0x5c0) & ~(0x201 << lane)) |
- (setting[2] << (9 + lane)) |
- (setting[3] << lane);
+ (setting->db_en << (9 + lane)) |
+ (setting->db_sel << lane);
MCHBAR32(0x400*ch + 0x5c8) = (MCHBAR32(0x400*ch + 0x5c8) & ~(0x3 << (16+lane*2))) |
- (setting[4] << (16+lane*2));
+ (setting->clk_delay << (16+lane*2));
MCHBAR32(0x400*ch + 0x5cc) = (MCHBAR32(0x400*ch + 0x5cc) & ~(0x3 << (16+lane*2))) |
- (setting[4] << (16+lane*2));
+ (setting->clk_delay << (16+lane*2));
MCHBAR32(0x400*ch + 0x5d0) = (MCHBAR32(0x400*ch + 0x5d0) & ~(0x3 << (16+lane*2))) |
- (setting[4] << (16+lane*2));
+ (setting->clk_delay << (16+lane*2));
MCHBAR32(0x400*ch + 0x5d4) = (MCHBAR32(0x400*ch + 0x5d4) & ~(0x3 << (16+lane*2))) |
- (setting[4] << (16+lane*2));
+ (setting->clk_delay << (16+lane*2));
MCHBAR8(0x400*ch + 0x520 + lane*4) = (MCHBAR8(0x400*ch + 0x520 + lane*4) & ~0x70) |
- (setting[1] << 4);
+ (setting->pi << 4);
MCHBAR8(0x400*ch + 0x520 + lane*4) = (MCHBAR8(0x400*ch + 0x520 + lane*4) & ~0xf) |
- setting[0];
+ setting->tap;
MCHBAR8(0x400*ch + 0x521 + lane*4) = (MCHBAR8(0x400*ch + 0x521 + lane*4) & ~0x70) |
- (setting[1] << 4);
+ (setting->pi << 4);
MCHBAR8(0x400*ch + 0x521 + lane*4) = (MCHBAR8(0x400*ch + 0x521 + lane*4) & ~0xf) |
- setting[0];
+ setting->tap;
MCHBAR8(0x400*ch + 0x522 + lane*4) = (MCHBAR8(0x400*ch + 0x522 + lane*4) & ~0x70) |
- (setting[1] << 4);
+ (setting->pi << 4);
MCHBAR8(0x400*ch + 0x522 + lane*4) = (MCHBAR8(0x400*ch + 0x522 + lane*4) & ~0xf) |
- setting[0];
+ setting->tap;
MCHBAR8(0x400*ch + 0x523 + lane*4) = (MCHBAR8(0x400*ch + 0x523 + lane*4) & ~0x70) |
- (setting[1] << 4);
+ (setting->pi << 4);
MCHBAR8(0x400*ch + 0x523 + lane*4) = (MCHBAR8(0x400*ch + 0x523 + lane*4) & ~0xf) |
- setting[0];
+ setting->tap;
}
-static void dqset(u8 ch, u8 lane, u8 setting[5])
+static void dqset(u8 ch, u8 lane, const struct dll_setting *setting)
{
MCHBAR32(0x400*ch + 0x5fc) = MCHBAR32(0x400*ch + 0x5fc) & ~(1 << (lane*4));
MCHBAR32(0x400*ch + 0x5a4) = (MCHBAR32(0x400*ch + 0x5a4) & ~(0x201 << lane)) |
- (setting[2] << (9+lane)) |
- (setting[3] << lane);
+ (setting->db_en << (9 + lane)) |
+ (setting->db_sel << lane);
MCHBAR32(0x400*ch + 0x5a8) = (MCHBAR32(0x400*ch + 0x5a8) & ~(0x201 << lane)) |
- (setting[2] << (9+lane)) |
- (setting[3] << lane);
+ (setting->db_en << (9 + lane)) |
+ (setting->db_sel << lane);
MCHBAR32(0x400*ch + 0x5ac) = (MCHBAR32(0x400*ch + 0x5ac) & ~(0x201 << lane)) |
- (setting[2] << (9+lane)) |
- (setting[3] << lane);
+ (setting->db_en << (9 + lane)) |
+ (setting->db_sel << lane);
MCHBAR32(0x400*ch + 0x5b0) = (MCHBAR32(0x400*ch + 0x5b0) & ~(0x201 << lane)) |
- (setting[2] << (9+lane)) |
- (setting[3] << lane);
+ (setting->db_en << (9 + lane)) |
+ (setting->db_sel << lane);
MCHBAR32(0x400*ch + 0x5c8) = (MCHBAR32(0x400*ch + 0x5c8) & ~(0x3 << (lane*2))) |
- (setting[4] << (2*lane));
+ (setting->clk_delay << (2 * lane));
MCHBAR32(0x400*ch + 0x5cc) = (MCHBAR32(0x400*ch + 0x5cc) & ~(0x3 << (lane*2))) |
- (setting[4] << (2*lane));
+ (setting->clk_delay << (2 * lane));
MCHBAR32(0x400*ch + 0x5d0) = (MCHBAR32(0x400*ch + 0x5d0) & ~(0x3 << (lane*2))) |
- (setting[4] << (2*lane));
+ (setting->clk_delay << (2 * lane));
MCHBAR32(0x400*ch + 0x5d4) = (MCHBAR32(0x400*ch + 0x5d4) & ~(0x3 << (lane*2))) |
- (setting[4] << (2*lane));
+ (setting->clk_delay << (2 * lane));
MCHBAR8(0x400*ch + 0x500 + lane*4) = (MCHBAR8(0x400*ch + 0x500 + lane*4) & ~0x70) |
- (setting[1] << 4);
+ (setting->pi << 4);
MCHBAR8(0x400*ch + 0x500 + lane*4) = (MCHBAR8(0x400*ch + 0x500 + lane*4) & ~0xf) |
- setting[0];
+ setting->tap;
MCHBAR8(0x400*ch + 0x501 + lane*4) = (MCHBAR8(0x400*ch + 0x501 + lane*4) & ~0x70) |
- (setting[1] << 4);
+ (setting->pi << 4);
MCHBAR8(0x400*ch + 0x501 + lane*4) = (MCHBAR8(0x400*ch + 0x501 + lane*4) & ~0xf) |
- setting[0];
+ setting->tap;
MCHBAR8(0x400*ch + 0x502 + lane*4) = (MCHBAR8(0x400*ch + 0x502 + lane*4) & ~0x70) |
- (setting[1] << 4);
+ (setting->pi << 4);
MCHBAR8(0x400*ch + 0x502 + lane*4) = (MCHBAR8(0x400*ch + 0x502 + lane*4) & ~0xf) |
- setting[0];
+ setting->tap;
MCHBAR8(0x400*ch + 0x503 + lane*4) = (MCHBAR8(0x400*ch + 0x503 + lane*4) & ~0x70) |
- (setting[1] << 4);
+ (setting->pi << 4);
MCHBAR8(0x400*ch + 0x503 + lane*4) = (MCHBAR8(0x400*ch + 0x503 + lane*4) & ~0xf) |
- setting[0];
+ setting->tap;
}
static void timings_ddr2(struct sysinfo *s)
@@ -803,7 +803,7 @@
MCHBAR8(0x1a4) = MCHBAR8(0x1a4) | 0x40;
MCHBAR16(0x5f0) = (MCHBAR16(0x5f0) & ~0x400) | 0x400;
- u8 dll_setting_667[23][5] = {
+ const struct dll_setting dll_setting_667[23] = {
// tap pi db delay
{13, 0, 1, 0, 0},
{4, 1, 0, 0, 0},
@@ -830,7 +830,7 @@
{5, 4, 0, 0, 1}
};
- u8 dll_setting_800[23][5] = {
+ const struct dll_setting dll_setting_800[23] = {
// tap pi db delay
{11, 5, 1, 0, 0},
{0, 5, 1, 1, 0},
@@ -866,21 +866,21 @@
FOR_EACH_POPULATED_CHANNEL(s->dimms, i) {
if (s->selected_timings.mem_clk == MEM_CLOCK_667MHz) {
- clkset0(i, &dll_setting_667[CLKSET0][0]);
- clkset1(i, &dll_setting_667[CLKSET1][0]);
- ctrlset0(i, &dll_setting_667[CTRL0][0]);
- ctrlset1(i, &dll_setting_667[CTRL1][0]);
- ctrlset2(i, &dll_setting_667[CTRL2][0]);
- ctrlset3(i, &dll_setting_667[CTRL3][0]);
- cmdset(i, &dll_setting_667[CMD][0]);
+ clkset0(i, &dll_setting_667[CLKSET0]);
+ clkset1(i, &dll_setting_667[CLKSET1]);
+ ctrlset0(i, &dll_setting_667[CTRL0]);
+ ctrlset1(i, &dll_setting_667[CTRL1]);
+ ctrlset2(i, &dll_setting_667[CTRL2]);
+ ctrlset3(i, &dll_setting_667[CTRL3]);
+ cmdset(i, &dll_setting_667[CMD]);
} else {
- clkset0(i, &dll_setting_800[CLKSET0][0]);
- clkset1(i, &dll_setting_800[CLKSET1][0]);
- ctrlset0(i, &dll_setting_800[CTRL0][0]);
- ctrlset1(i, &dll_setting_800[CTRL1][0]);
- ctrlset2(i, &dll_setting_800[CTRL2][0]);
- ctrlset3(i, &dll_setting_800[CTRL3][0]);
- cmdset(i, &dll_setting_800[CMD][0]);
+ clkset0(i, &dll_setting_800[CLKSET0]);
+ clkset1(i, &dll_setting_800[CLKSET1]);
+ ctrlset0(i, &dll_setting_800[CTRL0]);
+ ctrlset1(i, &dll_setting_800[CTRL1]);
+ ctrlset2(i, &dll_setting_800[CTRL2]);
+ ctrlset3(i, &dll_setting_800[CTRL3]);
+ cmdset(i, &dll_setting_800[CMD]);
}
}
@@ -998,14 +998,14 @@
FOR_EACH_POPULATED_CHANNEL(s->dimms, i) {
if (s->selected_timings.mem_clk == MEM_CLOCK_667MHz) {
for (lane = 0; lane < 8; lane++)
- dqsset(i, lane, &dll_setting_667[DQS1+lane][0]);
+ dqsset(i, lane, &dll_setting_667[DQS1+lane]);
for (lane = 0; lane < 8; lane++)
- dqset(i, lane, &dll_setting_667[DQ1+lane][0]);
+ dqset(i, lane, &dll_setting_667[DQ1+lane]);
} else {
for (lane = 0; lane < 8; lane++)
- dqsset(i, lane, &dll_setting_800[DQS1+lane][0]);
+ dqsset(i, lane, &dll_setting_800[DQS1+lane]);
for (lane = 0; lane < 8; lane++)
- dqset(i, lane, &dll_setting_800[DQ1+lane][0]);
+ dqset(i, lane, &dll_setting_800[DQ1+lane]);
}
}
}
diff --git a/src/northbridge/intel/x4x/x4x.h b/src/northbridge/intel/x4x/x4x.h
index 32d4b96..7d8f5cc 100644
--- a/src/northbridge/intel/x4x/x4x.h
+++ b/src/northbridge/intel/x4x/x4x.h
@@ -240,6 +240,15 @@
CHIP_CAP_16G = 6,
};
+struct dll_setting {
+ u8 tap;
+ u8 pi;
+ u8 db_en;
+ u8 db_sel;
+ u8 clk_delay;
+ u8 coarse;
+};
+
struct timings {
unsigned int CAS;
enum fsb_clock fsb_clk;
--
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I28377d2d15d0e6a0d12545b837d6369e0dc26b92
Gerrit-PatchSet: 1
Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-Owner: Arthur Heymans <arthur at aheymans.xyz>
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