View source for /dev/bsp/ddrperf

== Attributes ==

=== ctr_val ===
'''Availability''': This attribute is always available.

'''Permissions''': <code>BSP_PERMISSIONS_IOS | BSP_PERMISSIONS_PPC_SUPV</code> only.
{| class="wikitable"
|-
! 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 [[Hardware/Memory Controller|MEM_EDRAM_REFRESH]] values.
|}

=== ctr_cfg ===
'''Availability''': This attribute is always available.

'''Permissions''': <code>BSP_PERMISSIONS_IOS | BSP_PERMISSIONS_PPC_SUPV</code> only.
{| class="wikitable"
|-
! Method
! Data Size
! Values
!
|-
| Write
| 6
| 
| Configures a series of [[Hardware/Memory Controller|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''': <code>BSP_PERMISSIONS_IOS | BSP_PERMISSIONS_PPC_SUPV</code> only.
{| class="wikitable"
|-
! 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 [[Hardware/Memory Controller|MEM_EDRAM_REFRESH]], before clearing bits 1 (when written value is 3) or 2 (when written value is 2) in the same registers.
|}