/dev/bsp/Sys
< /dev | bsp
Revision as of 13:20, 9 December 2019 by QuarkTheAwesome (talk | contribs) (Start documenting BSP/Sys (incomplete))
Sys is the /dev/bsp entity that handles miscellaneous system attributes, like. There is always one instance available.
Attributes
WorkArounds
Availability: This attribute is always available.
Permissions: BSP_PERMISSIONS_IOS_SUPV only.
| Method | Data Size | Values | |
|---|---|---|---|
| Init | 0 | Sets various hardware-dependent workaround registers depending on the hardware version. For Latte boards, this includes bits 10 and 11 in HW_SPARE1, bits 4 through 1 in HW_SPARE0, and bits 18 through 13 in AHMN_WORKAROUND (dev boards only). |
Misc
Availability: This attribute is always available.
Permissions: BSP_PERMISSIONS_IOS_SUPV only.
| Method | Data Size | Values | |
|---|---|---|---|
| Init | 0 | Sets various pin strength controls, including bits in HW_IOSTRCTRL0, HW_IOSTRCTRL1, HW_CLKSTRCTRL and LT_IOSTRCTRL2. |
ClockInfo
Availability: This attribute is always available.
Permissions: BSP_PERMISSIONS_ALL.
| Method | Data Size | Values | |
|---|---|---|---|
| Read | 8 | constant | Returns the system bus speed in Hz (248625000 on retail consoles) in the first 4 bytes, and the same value divided by 128 in the second 4 bytes. |
ASICRevision
Availability: This attribute is always available.
Permissions: BSP_PERMISSIONS_ALL.
| Method | Data Size | Values | |
|---|---|---|---|
| Read | 8 | constant | Returns HW_CHIPREVID in the first 4 bytes, and LT_CHIPREVID in the last 8 bytes (where supported). |
BoardRevision
Availability: This attribute is always available.
Permissions: BSP_PERMISSIONS_ALL.
| Method | Data Size | Values | |
|---|---|---|---|
| Read | 2 | constant | Returns the board revision from BSP's global BoardConfig struct. |
SYSPLL
Availability: This attribute is always available.
Permissions: BSP_PERMISSIONS_PPC_SUPV_READ | BSP_PERMISSIONS_IOS_USER_READ | BSP_PERMISSIONS_IOS_SUPV
| Method | Data Size | Values | |
|---|---|---|---|
| Read | 0x36 | Constructs a buffer with values from ABIF.[check] | |
| Write | 0x36 | Sends values from the input buffer out over ABIF, wrapped by toggling values in HW_CLOCKS (sets FX on entry, clears SPEED and FX on exit), conditionally setting bit 1 in LT_PLLSYS and holding RSTB_SYSPLL, RSTB_MEMRSTB and RSTB_DSKPLL in reset during the operation. | |
| Init | 0 | Calls the same backend function as the Write method, using hardcoded PLL data. |