/dev/bsp/ddrperf
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Attributes
ctr_val
Availability: This attribute is always available.
Permissions: BSP_PERMISSIONS_IOS | BSP_PERMISSIONS_PPC_SUPV only.
| Method | Data Size | Values | |
|---|---|---|---|
| Read | 0x40 | Reads out a series of unknown hardware registers between 0x0D8B4680 and 0x0D8B469C in the first 0x20 bytes; followed by some MEM_EDRAM_REFRESH values. |
ctr_cfg
Availability: This attribute is always available.
Permissions: BSP_PERMISSIONS_IOS | BSP_PERMISSIONS_PPC_SUPV only.
| Method | Data Size | Values | |
|---|---|---|---|
| Write | 6 | Configures a series of MEM_EDRAM_REFRESH values and sets unknown hardware registers between 0x0D8B4680 and 0x0D8B469C based on values provided (a 16-bit short and a 32-byte integer). |
ctr_ctrl
Availability: This attribute is always available.
Permissions: BSP_PERMISSIONS_IOS | BSP_PERMISSIONS_PPC_SUPV only.
| Method | Data Size | Values | |
|---|---|---|---|
| Write | 4 | 1, 2, 3 | Sets bits 1 (when written value is 1) or 2 (when written value is 2) across several unknown hardware registers between 0x0D8B4660 and 0xD8B4680 and index 0x14 in MEM_EDRAM_REFRESH, before clearing bits 1 (when written value is 3) or 2 (when written value is 2) in the same registers. |