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mt8173: dram: Add more sample points to improve dram timing margin.

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BRANCH=none
BUG=chrome-os-partner:52959
TEST=verified on elm-EVT SKU1/SKU2, Oak-rev5 2GB/4GB models.

Change-Id: I22356aa8d196c4c126742cfc7e85cc693acd9b39
Signed-off-by: PH Hsu <ph.hsu@mediatek.com>
Reviewed-on: https://chromium-review.googlesource.com/347716
Commit-Ready: Yidi Lin <yidi.lin@mediatek.com>
Tested-by: Yidi Lin <yidi.lin@mediatek.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
PH Hsu 2016-05-17 08:47:56 +08:00 • committed by chrome-bot
commit 3c19e7d84d
5 changed files with 36 additions and 33 deletions
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8
src/mainboard/google/oak/sdram_inf/sdram-lpddr3-K4E6E304EB-4GB.inc
View file

@ -21,12 +21,12 @@
.gating_win = {
[CHANNEL_A] = {
{ 28, 56},
{ 28, 56}
{ 28, 64},
{ 28, 64}
},
[CHANNEL_B] = {
{ 28, 56},
{ 28, 56}
{ 28, 64},
{ 28, 64}
}
},

4
src/mainboard/google/oak/sdram_inf/sdram-lpddr3-hynix-2GB.inc
View file

@ -21,11 +21,11 @@
.gating_win = {
[CHANNEL_A] = {
{ 28, 56},
{ 28, 64},
{ 0, 0}
},
[CHANNEL_B] = {
{ 28, 56},
{ 28, 64},
{ 0, 0}
}
},

10
src/mainboard/google/oak/sdram_inf/sdram-lpddr3-hynix-4GB.inc
View file

@ -21,18 +21,18 @@
.gating_win = {
[CHANNEL_A] = {
{ 28, 56},
{ 28, 56}
{ 28, 64},
{ 28, 64}
},
[CHANNEL_B] = {
{ 28, 56},
{ 28, 56}
{ 28, 64},
{ 28, 64}
}
},
.rx_dqs_dly = {
[CHANNEL_A] = 0x110e0b0b,
[CHANNEL_B] = 0x12100d0d
[CHANNEL_B] = 0x0D100d0d
},
.rx_dq_dly = {