diff options
Diffstat (limited to 'arch/arm/include/asm/arch-rockchip/sdram.h')
| -rw-r--r-- | arch/arm/include/asm/arch-rockchip/sdram.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-rockchip/sdram.h b/arch/arm/include/asm/arch-rockchip/sdram.h index 82c3d07cbb..d7d67baa68 100644 --- a/arch/arm/include/asm/arch-rockchip/sdram.h +++ b/arch/arm/include/asm/arch-rockchip/sdram.h @@ -16,6 +16,11 @@ enum { }; struct rk3288_sdram_channel { + /* + * bit width in address, eg: + * 8 banks using 3 bit to address, + * 2 cs using 1 bit to address. + */ u8 rank; u8 col; u8 bk; @@ -87,6 +92,16 @@ struct rk3288_base_params { u32 ddrconfig; u32 ddr_freq; u32 dramtype; + /* + * DDR Stride is address mapping for DRAM space + * Stride Ch 0 range Ch1 range Total + * 0x00 0-256MB 256MB-512MB 512MB + * 0x05 0-1GB 0-1GB 1GB + * 0x09 0-2GB 0-2GB 2GB + * 0x0d 0-4GB 0-4GB 4GB + * 0x17 N/A 0-4GB 4GB + * 0x1a 0-4GB 4GB-8GB 8GB + */ u32 stride; u32 odt; }; |