diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/misc/aspeed_sdmc.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/include/hw/misc/aspeed_sdmc.h b/include/hw/misc/aspeed_sdmc.h index cea1e67fe3..c6226957dd 100644 --- a/include/hw/misc/aspeed_sdmc.h +++ b/include/hw/misc/aspeed_sdmc.h @@ -17,7 +17,18 @@ #define TYPE_ASPEED_2500_SDMC TYPE_ASPEED_SDMC "-ast2500" #define TYPE_ASPEED_2600_SDMC TYPE_ASPEED_SDMC "-ast2600" -#define ASPEED_SDMC_NR_REGS (0x174 >> 2) +/* + * SDMC has 174 documented registers. In addition the u-boot device tree + * describes the following regions: + * - PHY status regs at offset 0x400, length 0x200 + * - PHY setting regs at offset 0x100, length 0x300 + * + * There are two sets of MRS (Mode Registers) configuration in ast2600 memory + * system: one is in the SDRAM MC (memory controller) which is used in run + * time, and the other is in the DDR-PHY IP which is used during DDR-PHY + * training. + */ +#define ASPEED_SDMC_NR_REGS (0x500 >> 2) typedef struct AspeedSDMCState { /*< private >*/ |