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sunxi: add LPDDR3 DRAM type support for DesignWare-like DRAM controller

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Some A64 boards (SoPine and Pinebook production batch) use LPDDR3 DRAM
chips.

Add support for LPDDR3 DRAM in the DesignWare-like DRAM controller code.

Real LPDDR3 chips' support is not added yet in this commit.

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 17:10:23 +08:00 committed by Jagan Teki
parent 7d06e59f73
commit 72cc987002
2 changed files with 5 additions and 0 deletions
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3
arch/arm/mach-sunxi/Kconfig
View file

@ -226,6 +226,9 @@ config SUNXI_DRAM_DDR3
config SUNXI_DRAM_DDR2
bool
config SUNXI_DRAM_LPDDR3
bool
choice
prompt "DRAM Type and Timing"
default SUNXI_DRAM_DDR3_1333 if !MACH_SUN8I_V3S

2
arch/arm/mach-sunxi/dram_sunxi_dw.c
View file

@ -342,6 +342,8 @@ static void mctl_set_cr(uint16_t socid, struct dram_para *para)
MCTL_CR_DDR3 | MCTL_CR_2T |
#elif defined CONFIG_SUNXI_DRAM_DDR2
MCTL_CR_DDR2 | MCTL_CR_2T |
#elif defined CONFIG_SUNXI_DRAM_LPDDR3
MCTL_CR_LPDDR3 | MCTL_CR_1T |
#else
#error Unsupported DRAM type!
#endif