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Date: Mon, 20 Jul 2009 20:26:50 +0200
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From: Artyom Tarasenko <atar4qemu@googlemail.com>
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Subject: [Qemu-devel] Sparc32 scsi (esp) and openboot
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To: qemu-devel <qemu-devel@nongnu.org>
Cc: Blue Swirl <blauwirbel@gmail.com>

trying to make the proprietary OBP to boot, I got to the point where
SBus probe finds the scsi controller.
The next step is to find the devices attached to it, but here I get ESP errors.

Actually, I wonder if the very first ESP error may bring ESP in the
state, where it doesn't work properly anymore. The error happens
pretty early, before the "Power-ON Reset" message from OBP.

$ qemu-system-sparc -M SS-20 -L ~/sparc/ -bios ss20_v2.25_rom -nographic  -m 512
ESP: Attaching block device 2

ESP: write reg[8]: 0x00 -> 0x08
ESP: write reg[10]: 0x00 -> 0x01
ESP: write reg[0]: 0x00 -> 0x20
ESP: write reg[0]: 0x20 -> 0x00
ESP: write reg[3]: 0x00 -> 0xa2
ESP ERROR: esp_mem_writeb: Unhandled ESP command (a2)

Power-ON Reset
...

Probing /iommu@f,e0000000/sbus@f,e0001000 at f,0  espdma esp ESP:
write reg[3]: 0x00 -> 0x02
ESP: Chip reset (02)
ESP: write reg[3]: 0x02 -> 0x00
ESP: NOP (00)
ESP: write reg[5]: 0x00 -> 0x93
ESP: write reg[7]: 0x00 -> 0x00
ESP: write reg[9]: 0x00 -> 0x00
ESP: write reg[8]: 0x00 -> 0x07
ESP: read reg[5]: 0x00
ESP: write reg[3]: 0x00 -> 0x03
ESP: Bus reset (03)
CPUIRQ: Raise CPU IRQ 4
ESP: read reg[5]: 0x80
CPUIRQ: Lower CPU IRQ 4
ESP: read reg[5]: 0x80
ESP: read reg[5]: 0x80
<the last message repeats 998 times>

Can't clear ESP interrupts: Check SCSI Term. Power Fuse.
sd st ledma le SUNW,bpp
ok
ok test scsi
 Dma register test -- succeeded.
 Esp register test -- ESP: write reg[8]: 0x07 -> 0x01
ESP: read reg[8]: 0x01
ESP: write reg[8]: 0x01 -> 0x02
ESP: read reg[8]: 0x02
ESP: write reg[8]: 0x02 -> 0x04
ESP: read reg[8]: 0x04
ESP: write reg[8]: 0x04 -> 0x08
ESP: read reg[8]: 0x08
ESP: write reg[8]: 0x08 -> 0x10
ESP: read reg[8]: 0x10
ESP: write reg[8]: 0x10 -> 0x20
ESP: read reg[8]: 0x20
ESP: write reg[8]: 0x20 -> 0x40
ESP: read reg[8]: 0x40
ESP: write reg[8]: 0x40 -> 0x80
ESP: read reg[8]: 0x80
succeeded.
 Dma read test -- ESP: write reg[3]: 0x03 -> 0x02
ESP: Chip reset (02)
ESP: write reg[3]: 0x02 -> 0x00
ESP: NOP (00)
ESP: write reg[5]: 0x00 -> 0x93
ESP: write reg[7]: 0x00 -> 0x00
ESP: write reg[9]: 0x00 -> 0x00
ESP: write reg[8]: 0x00 -> 0x07
ESP: read reg[5]: 0x00
ESP: write reg[8]: 0x07 -> 0x08
ESP: write reg[10]: 0x00 -> 0x01
ESP: write reg[0]: 0x00 -> 0x02
ESP: write reg[1]: 0x00 -> 0x00
ESP: write reg[3]: 0x00 -> 0xa2
ESP ERROR: esp_mem_writeb: Unhandled ESP command (a2)
ESP: read reg[2]: 0x00
failed.
 Dma write test -- ESP: write reg[3]: 0xa2 -> 0x02
ESP: Chip reset (02)
ESP: write reg[3]: 0x02 -> 0x00
ESP: NOP (00)
ESP: write reg[5]: 0x00 -> 0x93
ESP: write reg[7]: 0x00 -> 0x00
ESP: write reg[9]: 0x00 -> 0x00
ESP: write reg[8]: 0x00 -> 0x07
ESP: read reg[5]: 0x00
ESP: write reg[8]: 0x07 -> 0x08
ESP: write reg[10]: 0x00 -> 0x01
ESP: write reg[0]: 0x00 -> 0x02
ESP: write reg[2]: 0x00 -> 0x00
ESP: write reg[2]: 0x00 -> 0x01
ESP: write reg[1]: 0x00 -> 0x00
ESP: write reg[3]: 0x00 -> 0xaa
ESP ERROR: esp_mem_writeb: Unhandled ESP command (aa)
ESP: write reg[3]: 0xaa -> 0x02
ESP: Chip reset (02)
ESP: write reg[3]: 0x02 -> 0x00
ESP: NOP (00)
ESP: write reg[5]: 0x00 -> 0x93
ESP: write reg[7]: 0x00 -> 0x00
ESP: write reg[9]: 0x00 -> 0x00
ESP: write reg[8]: 0x00 -> 0x07
ESP: read reg[5]: 0x00
ESP: write reg[8]: 0x07 -> 0x08
ESP: write reg[10]: 0x00 -> 0x01
ESP: write reg[0]: 0x00 -> 0x04
ESP: write reg[2]: 0x00 -> 0x00
ESP: write reg[2]: 0x00 -> 0x01
ESP: write reg[2]: 0x01 -> 0x02
ESP: write reg[2]: 0x02 -> 0x03
ESP: write reg[1]: 0x00 -> 0x00
ESP: write reg[3]: 0x00 -> 0xaa
ESP ERROR: esp_mem_writeb: Unhandled ESP command (aa)
ESP: write reg[3]: 0xaa -> 0x02
ESP: Chip reset (02)
ESP: write reg[3]: 0x02 -> 0x00
ESP: NOP (00)
ESP: write reg[5]: 0x00 -> 0x93
ESP: write reg[7]: 0x00 -> 0x00
ESP: write reg[9]: 0x00 -> 0x00
ESP: write reg[8]: 0x00 -> 0x07
ESP: read reg[5]: 0x00
ESP: write reg[8]: 0x07 -> 0x08
ESP: write reg[10]: 0x00 -> 0x01
ESP: write reg[0]: 0x00 -> 0x06
ESP: write reg[2]: 0x00 -> 0x00
ESP: write reg[2]: 0x00 -> 0x01
ESP: write reg[2]: 0x01 -> 0x02
ESP: write reg[2]: 0x02 -> 0x03
ESP: write reg[2]: 0x03 -> 0x04
ESP: write reg[2]: 0x04 -> 0x05
ESP: write reg[1]: 0x00 -> 0x00
ESP: write reg[3]: 0x00 -> 0xaa
ESP ERROR: esp_mem_writeb: Unhandled ESP command (aa)
ESP: write reg[3]: 0xaa -> 0x02
ESP: Chip reset (02)
ESP: write reg[3]: 0x02 -> 0x00
ESP: NOP (00)
ESP: write reg[5]: 0x00 -> 0x93
ESP: write reg[7]: 0x00 -> 0x00
ESP: write reg[9]: 0x00 -> 0x00
ESP: write reg[8]: 0x00 -> 0x07
ESP: read reg[5]: 0x00
ESP: write reg[8]: 0x07 -> 0x08
ESP: write reg[10]: 0x00 -> 0x01
ESP: write reg[0]: 0x00 -> 0x08
ESP: write reg[2]: 0x00 -> 0x00
ESP: write reg[2]: 0x00 -> 0x01
ESP: write reg[2]: 0x01 -> 0x02
ESP: write reg[2]: 0x02 -> 0x03
ESP: write reg[2]: 0x03 -> 0x04
ESP: write reg[2]: 0x04 -> 0x05
ESP: write reg[2]: 0x05 -> 0x06
ESP: write reg[2]: 0x06 -> 0x07
ESP: write reg[1]: 0x00 -> 0x00
ESP: write reg[3]: 0x00 -> 0xaa
ESP ERROR: esp_mem_writeb: Unhandled ESP command (aa)
ESP: write reg[3]: 0xaa -> 0x02
ESP: Chip reset (02)
ESP: write reg[3]: 0x02 -> 0x00
ESP: NOP (00)
ESP: write reg[5]: 0x00 -> 0x93
ESP: write reg[7]: 0x00 -> 0x00
ESP: write reg[9]: 0x00 -> 0x00
ESP: write reg[8]: 0x00 -> 0x07
ESP: read reg[5]: 0x00
ESP: write reg[8]: 0x07 -> 0x08
ESP: write reg[10]: 0x00 -> 0x01
ESP: write reg[0]: 0x00 -> 0x0a
ESP: write reg[2]: 0x00 -> 0x00
ESP: write reg[2]: 0x00 -> 0x01
ESP: write reg[2]: 0x01 -> 0x02
ESP: write reg[2]: 0x02 -> 0x03
ESP: write reg[2]: 0x03 -> 0x04
ESP: write reg[2]: 0x04 -> 0x05
ESP: write reg[2]: 0x05 -> 0x06
ESP: write reg[2]: 0x06 -> 0x07
ESP: write reg[2]: 0x07 -> 0x08
ESP: write reg[2]: 0x08 -> 0x09
ESP: write reg[1]: 0x00 -> 0x00
ESP: write reg[3]: 0x00 -> 0xaa
ESP ERROR: esp_mem_writeb: Unhandled ESP command (aa)
ESP: write reg[3]: 0xaa -> 0x02
ESP: Chip reset (02)
ESP: write reg[3]: 0x02 -> 0x00
ESP: NOP (00)
ESP: write reg[5]: 0x00 -> 0x93
ESP: write reg[7]: 0x00 -> 0x00
ESP: write reg[9]: 0x00 -> 0x00
ESP: write reg[8]: 0x00 -> 0x07
ESP: read reg[5]: 0x00
ESP: write reg[8]: 0x07 -> 0x08
ESP: write reg[10]: 0x00 -> 0x01
ESP: write reg[0]: 0x00 -> 0x0c
ESP: write reg[2]: 0x00 -> 0x00
ESP: write reg[2]: 0x00 -> 0x01
ESP: write reg[2]: 0x01 -> 0x02
ESP: write reg[2]: 0x02 -> 0x03
ESP: write reg[2]: 0x03 -> 0x04
ESP: write reg[2]: 0x04 -> 0x05
ESP: write reg[2]: 0x05 -> 0x06
ESP: write reg[2]: 0x06 -> 0x07
ESP: write reg[2]: 0x07 -> 0x08
ESP: write reg[2]: 0x08 -> 0x09
ESP: write reg[2]: 0x09 -> 0x0a
ESP: write reg[2]: 0x0a -> 0x0b
ESP: write reg[1]: 0x00 -> 0x00
ESP: write reg[3]: 0x00 -> 0xaa
ESP ERROR: esp_mem_writeb: Unhandled ESP command (aa)
ESP: write reg[3]: 0xaa -> 0x02
ESP: Chip reset (02)
ESP: write reg[3]: 0x02 -> 0x00
ESP: NOP (00)
ESP: write reg[5]: 0x00 -> 0x93
ESP: write reg[7]: 0x00 -> 0x00
ESP: write reg[9]: 0x00 -> 0x00
ESP: write reg[8]: 0x00 -> 0x07
ESP: read reg[5]: 0x00
ESP: write reg[8]: 0x07 -> 0x08
ESP: write reg[10]: 0x00 -> 0x01
ESP: write reg[0]: 0x00 -> 0x0e
ESP: write reg[2]: 0x00 -> 0x00
ESP: write reg[2]: 0x00 -> 0x01
ESP: write reg[2]: 0x01 -> 0x02
ESP: write reg[2]: 0x02 -> 0x03
ESP: write reg[2]: 0x03 -> 0x04
ESP: write reg[2]: 0x04 -> 0x05
ESP: write reg[2]: 0x05 -> 0x06
ESP: write reg[2]: 0x06 -> 0x07
ESP: write reg[2]: 0x07 -> 0x08
ESP: write reg[2]: 0x08 -> 0x09
ESP: write reg[2]: 0x09 -> 0x0a
ESP: write reg[2]: 0x0a -> 0x0b
ESP: write reg[2]: 0x0b -> 0x0c
ESP: write reg[2]: 0x0c -> 0x0d
ESP: write reg[1]: 0x00 -> 0x00
ESP: write reg[3]: 0x00 -> 0xaa
ESP ERROR: esp_mem_writeb: Unhandled ESP command (aa)
ESP: write reg[3]: 0xaa -> 0x02
ESP: Chip reset (02)
ESP: write reg[3]: 0x02 -> 0x00
ESP: NOP (00)
ESP: write reg[5]: 0x00 -> 0x93
ESP: write reg[7]: 0x00 -> 0x00
ESP: write reg[9]: 0x00 -> 0x00
ESP: write reg[8]: 0x00 -> 0x07
ESP: read reg[5]: 0x00
ESP: write reg[8]: 0x07 -> 0x08
ESP: write reg[10]: 0x00 -> 0x01
ESP: write reg[0]: 0x00 -> 0x10
ESP: write reg[2]: 0x00 -> 0x00
ESP: write reg[2]: 0x00 -> 0x01
ESP: write reg[2]: 0x01 -> 0x02
ESP: write reg[2]: 0x02 -> 0x03
ESP: write reg[2]: 0x03 -> 0x04
ESP: write reg[2]: 0x04 -> 0x05
ESP: write reg[2]: 0x05 -> 0x06
ESP: write reg[2]: 0x06 -> 0x07
ESP: write reg[2]: 0x07 -> 0x08
ESP: write reg[2]: 0x08 -> 0x09
ESP: write reg[2]: 0x09 -> 0x0a
ESP: write reg[2]: 0x0a -> 0x0b
ESP: write reg[2]: 0x0b -> 0x0c
ESP: write reg[2]: 0x0c -> 0x0d
ESP: write reg[2]: 0x0d -> 0x0e
ESP: write reg[2]: 0x0e -> 0x0f
ESP ERROR: esp_mem_writeb: fifo overrun
ESP: write reg[1]: 0x00 -> 0x00
ESP: write reg[3]: 0x00 -> 0xaa
ESP ERROR: esp_mem_writeb: Unhandled ESP command (aa)
succeeded.

scsi selftest failed. Return code = -1
ok

Any ideas?