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sunxi: add support for V3s DRAM controller

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Allwinner V3s features a DRAM controller like the on in H3, but with a
DDR2 DRAM.

Add support for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
This commit is contained in:
Icenowy Zheng 2017-06-03 17:10:21 +08:00 committed by Jagan Teki
parent 67337e68a5
commit 3ec0698b8a
2 changed files with 7 additions and 1 deletions
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5
arch/arm/mach-sunxi/Kconfig
View file

@ -225,11 +225,13 @@ config SUNXI_DRAM_DDR2
choice
prompt "DRAM Type and Timing"
default SUNXI_DRAM_DDR3_1333
default SUNXI_DRAM_DDR3_1333 if !MACH_SUN8I_V3S
default SUNXI_DRAM_DDR2_V3S if MACH_SUN8I_V3S
config SUNXI_DRAM_DDR3_1333
bool "DDR3 1333"
select SUNXI_DRAM_DDR3
depends on !MACH_SUN8I_V3S
---help---
This option is the original only supported memory type, which suits
many H3/H5/A64 boards available now.
@ -237,6 +239,7 @@ config SUNXI_DRAM_DDR3_1333
config SUNXI_DRAM_DDR2_V3S
bool "DDR2 found in V3s chip"
select SUNXI_DRAM_DDR2
depends on MACH_SUN8I_V3S
---help---
This option is only for the DDR2 memory chip which is co-packaged in
Allwinner V3s SoC.

3
arch/arm/mach-sunxi/dram_sunxi_dw.c
View file

@ -723,6 +723,9 @@ unsigned long sunxi_dram_init(void)
uint16_t socid = SOCID_R40;
/* Currently we cannot support R40 with dual rank memory */
para.dual_rank = 0;
#elif defined(CONFIG_MACH_SUN8I_V3S)
/* TODO: set delays and mbus priority for V3s */
uint16_t socid = SOCID_H3;
#elif defined(CONFIG_MACH_SUN50I)
uint16_t socid = SOCID_A64;
#elif defined(CONFIG_MACH_SUN50I_H5)