请问谁有AIC600E3的DRAM初始化代码？

[lvjun0728]

在网上买了几片AIC800E3芯片，DRAM启动错误，谁有SPL的DRAM初始化代码？

[awwwwa]

@lvjun0728 主线（u-boot）不支持AIC600E3的DRAM初始化，请向ArtInChip联系获得支持。

由于AIC600E3修改了 DRAM 的 pinmux 线序，如没有原厂支持测试这个mux需要尝试20w次以上

[dingdong]

@awwwwa

Mainline u-boot now has support for T113-S3.... for the T113-S4 you need to apply this patch to the DRAM initialization to change mapping from 5 to no remapping. Then T113-S4 DRAM is initialized correctly as 256MB

diff --git a/drivers/ram/sunxi/dram_sun20i_d1.c b/drivers/ram/sunxi/dram_sun20i_d1.c
index 25005ceefb..258d854f7f 100644
--- a/drivers/ram/sunxi/dram_sun20i_d1.c
+++ b/drivers/ram/sunxi/dram_sun20i_d1.c
@@ -674,7 +674,7 @@ static void mctl_phy_ac_remapping(dram_para_t *para)
 			switch (fuse) {
 			case 8: cfg = ac_remapping_tables[2]; break;
 			case 9: cfg = ac_remapping_tables[3]; break;
-			case 10: cfg = ac_remapping_tables[5]; break;
+			case 10: cfg = ac_remapping_tables[0]; break;
 			case 11: cfg = ac_remapping_tables[4]; break;
 			default:
 			case 12: cfg = ac_remapping_tables[1]; break;

[awwwwa]

@dingdong AIC600E3 is a different chip with t113-s4