Difference between revisions of "OperaHW chipset"
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== MADAM registers == | == MADAM registers == | ||
| − | 0x03300000 | + | legend: (R) == read access, (W) == write access, (RO) == read only access, (WO) == writeonly access |
| + | |||
| + | |||
| + | *0x03300000 -- | ||
| + | **(R) MADAM revision number with features coded in 32 bit word | ||
| + | **(W) Some sort of debug port -- all kprintf's are printing characters to this port | ||
| + | |||
| + | *0x03300004 -- Memory configuration (RO) | ||
| + | ** default value is 0x29 (2mb DRAM, 1mb VRAM) | ||
| + | |||
| + | *0x03300008 -- DMA enable (RW) | ||
| + | *(W) -- 0x8000 enables PBUS DMA Transfer | ||
| + | |||
| + | *0x03300020 -- CPU Abort reason (RO) | ||
| + | ** 0 -- ROM Failure | ||
| + | ** 1 -- ROM Write | ||
| + | ** 2 -- CLIO Timeout | ||
| + | ** 3 -- User access to hardware | ||
| + | ** 4 -- User access to SYSRAM (lower 64KB of DRAM) | ||
| + | ** 5 -- FENCE Violation -- Memory Protect error | ||
| + | ** 6 -- Virtual Page Error | ||
| + | ** 7 -- Out of 26bit address range | ||
| + | ** 8 -- SPORT while SC | ||
| + | ** 9 -- Byte access to hardware | ||
| + | ** 10 -- bad address detected | ||
| + | ** 11 -- ARM access to PPROC while CEL is working | ||
| + | ** 12 -- Byte address - word access. (unaligned 32bit access) | ||
| + | |||
| + | *0x03300024 -- DMA Priv. violation (RO) -- DMA error description | ||
| + | ** 0x01 -- DMA access to SYSRAM | ||
| + | ** 0x02 -- SPORT access to SYSRAM | ||
| + | ** 0x04 -- CEL access to SYSRAM | ||
| + | ** 0x08 -- DMA access over VRAMSIZE | ||
| + | ** 0x10 -- SPORT access over VRAMSIZE | ||
| + | ** 0x20 -- CEL access over VRAMSIZE | ||
| + | ** 0x40 -- CEL math failure | ||
== CLIO registers == | == CLIO registers == | ||
Revision as of 16:26, 12 June 2007
Address Space
- 0x00000000 - 0x001FFFFF -- DRAM (2MB), accessible by CPU and DMA
- 0x00200000 - 0x002FFFFF -- VRAM (1MB), accessible by CPU, CEL and VDLP
- 0x03000000 - 0x030FFFFF -- ROM (1MB), contains bootloader, copy of OperaOS, and few usefull programms, such as CD player
- 0x03140000 - 0x0315FFFF -- NVRAM (32KB), sparced by aligning every byte to 32 bits boundary
- 0x03200000 - 0x032FFFFF -- SPORT - this is special feauture of VRAM, allowing to COPY or FILL VRAM pages (512 bytes) without CPU usage. Can be used with byte mask, allowing to create unique effects.
- 0x03300000 - 0x033FFFFF -- MADAM
- 0x03400000 - 0x034FFFFF -- CLIO
MADAM registers
legend: (R) == read access, (W) == write access, (RO) == read only access, (WO) == writeonly access
- 0x03300000 --
- (R) MADAM revision number with features coded in 32 bit word
- (W) Some sort of debug port -- all kprintf's are printing characters to this port
- 0x03300004 -- Memory configuration (RO)
- default value is 0x29 (2mb DRAM, 1mb VRAM)
- 0x03300008 -- DMA enable (RW)
- (W) -- 0x8000 enables PBUS DMA Transfer
- 0x03300020 -- CPU Abort reason (RO)
- 0 -- ROM Failure
- 1 -- ROM Write
- 2 -- CLIO Timeout
- 3 -- User access to hardware
- 4 -- User access to SYSRAM (lower 64KB of DRAM)
- 5 -- FENCE Violation -- Memory Protect error
- 6 -- Virtual Page Error
- 7 -- Out of 26bit address range
- 8 -- SPORT while SC
- 9 -- Byte access to hardware
- 10 -- bad address detected
- 11 -- ARM access to PPROC while CEL is working
- 12 -- Byte address - word access. (unaligned 32bit access)
- 0x03300024 -- DMA Priv. violation (RO) -- DMA error description
- 0x01 -- DMA access to SYSRAM
- 0x02 -- SPORT access to SYSRAM
- 0x04 -- CEL access to SYSRAM
- 0x08 -- DMA access over VRAMSIZE
- 0x10 -- SPORT access over VRAMSIZE
- 0x20 -- CEL access over VRAMSIZE
- 0x40 -- CEL math failure
