Difference between revisions of "Hardware/SATA controller"
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In terms of hardware registers; the controller lines up with the specification starting at address 0x0D160400; that is; the first Generic Host Control register (Host Capabilities) resides at 0x0D160400. On a retail console, this register reads out 0x7720FF81. | In terms of hardware registers; the controller lines up with the specification starting at address 0x0D160400; that is; the first Generic Host Control register (Host Capabilities) resides at 0x0D160400. On a retail console, this register reads out 0x7720FF81. | ||
| + | |||
| + | == Registers == | ||
| + | * The generic host control registers start at 0x0D160400. | ||
| + | * The port registers start at 0x0D160500. | ||
| + | |||
| + | == ATAPI commands == | ||
| + | Besides commands defined in the ATAPI specification, the Wii U also seems to have some custom commands. | ||
| + | |||
| + | === 0xF0 - ATAPI_CF_REQUEST_DRIVE_ID_CMD === | ||
| + | |||
| + | === 0xF1 - ATAPI_CF_AUTHENTICATE_CMD === | ||
| + | |||
| + | === 0xF2 - ATAPI_CF_START_STOP_UNIT_CMD === | ||
| + | |||
| + | === 0xF3 - ATAPI_CF_READ_CMD === | ||
| + | |||
| + | === 0xF4 - ATAPI_CF_TEST_UNIT_READY_CMD === | ||
| + | |||
| + | === 0xF5 - ATAPI_CF_INQUIRY_CMD === | ||
| + | {| class="wikitable" | ||
| + | |- | ||
| + | ! Offset | ||
| + | ! Size | ||
| + | ! Description | ||
| + | |- | ||
| + | | 0x00 | ||
| + | | 0x02 | ||
| + | | Unknown | ||
| + | |- | ||
| + | | 0x02 | ||
| + | | 0x01 | ||
| + | | Vendor | ||
| + | |- | ||
| + | | 0x03 | ||
| + | | 0x01 | ||
| + | | Device | ||
| + | |- | ||
| + | | 0x04 | ||
| + | | 0x1C | ||
| + | | Unknown | ||
| + | |- | ||
| + | | 0x20 | ||
| + | | - | ||
| + | | End | ||
| + | |} | ||
| + | |||
| + | === 0xFB - ATAPI_CF_FREC_READ_CMD === | ||
== See Also == | == See Also == | ||
[https://www.intel.com/content/dam/www/public/us/en/documents/technical-specifications/serial-ata-ahci-tech-proposal-rev1_3_1.pdf AHCI spec] | [https://www.intel.com/content/dam/www/public/us/en/documents/technical-specifications/serial-ata-ahci-tech-proposal-rev1_3_1.pdf AHCI spec] | ||
Revision as of 22:41, 16 October 2017
| SATA controller | |
| Access | |
|---|---|
| Espresso | None |
| Starbuck | Full |
| Registers | |
| Base | 0x0d160000 |
| Length | 0x10000 |
| Access size | 32 bits |
| Byte order | Big Endian |
| IRQs | |
| Espresso | ??? |
| Latte | ??? |
The Wii U has a standard AHCI 1.2 SATA controller onboard. It identifies as having two ports (0 and 1) running at 3Gbps. In retail systems, the disc drive is connected to port 0; while port 1 is disconnected. Unused code in IOS-BSP indicates that port 7 may be present on non-retail units.
In terms of hardware registers; the controller lines up with the specification starting at address 0x0D160400; that is; the first Generic Host Control register (Host Capabilities) resides at 0x0D160400. On a retail console, this register reads out 0x7720FF81.
Registers
- The generic host control registers start at 0x0D160400.
- The port registers start at 0x0D160500.
ATAPI commands
Besides commands defined in the ATAPI specification, the Wii U also seems to have some custom commands.
0xF0 - ATAPI_CF_REQUEST_DRIVE_ID_CMD
0xF1 - ATAPI_CF_AUTHENTICATE_CMD
0xF2 - ATAPI_CF_START_STOP_UNIT_CMD
0xF3 - ATAPI_CF_READ_CMD
0xF4 - ATAPI_CF_TEST_UNIT_READY_CMD
0xF5 - ATAPI_CF_INQUIRY_CMD
| Offset | Size | Description |
|---|---|---|
| 0x00 | 0x02 | Unknown |
| 0x02 | 0x01 | Vendor |
| 0x03 | 0x01 | Device |
| 0x04 | 0x1C | Unknown |
| 0x20 | - | End |