[U-Boot] About PCI of U-BOOT of CANYONLANDS

[Kazuaki Ichinohe <kazuichi@fsi.co.jp>]

Hi Anatolij, Stefan,

The memory space is displayed in BAR2 of the PCI configuration space.
The video driver accesses this memory space and the exception is generated.

  driver source: u-boot/drivers/video/ati_radeon_fb.c
  function name: void *video_hw_init(void)
  line         : 760line

I attach the log where the exception is generated.
I confirmed it by the source of the following patches.

----- patch ------
#undef CONFIG_VIDEO
#ifdef CONFIG_VIDEO
#define CONFIG_BIOSEMU
#define CONFIG_ATI_RADEON_FB
#define VIDEO_IO_OFFSET        0xD8000000
#define CONFIG_SYS_ISA_IO_BASE_ADDRESS    VIDEO_IO_OFFSET
#define CONFIG_VIDEO_SW_CURSOR
#define CONFIG_VIDEO_LOGO
#define CONFIG_CFB_CONSOLE
#define CONFIG_SPLASH_SCREEN
#define CONFIG_VGA_AS_SINGLE_DEVICE
#define CONFIG_CMD_BMP
#endif /* #ifdef CONFIG_VIDEO */

----- exception log --------
U-Boot 2009.01 ( 3? 18 2009 - 18:52:14)

CPU:   AMCC PowerPC 460EX Rev. A at 800 MHz (PLB=200, OPB=100, EBC=100 MHz)
        Security/Kasumi support
        Bootstrap Option H - Boot ROM Location I2C (Addr 0x52)
        Internal PCI arbiter disabled
        32 kB I-Cache 32 kB D-Cache
Board: Canyonlands - AMCC PPC460EX Evaluation Board, 1*PCIe/1*SATA, Rev. 14
I2C:   ready
DTT:   1 is 39 C
DRAM:  512 MB (ECC not enabled, 400 MHz, CL3)
FLASH: 64 MB
NAND:  128 MiB
PCI:   Bus Dev VenId DevId Class Int
         00  06  1002  5960  0300  ff
         00  06  1002  5940  0380  ff
PCIE1: link is not up.
PCIE1: initialization as root-complex failed
Net:   ppc_4xx_eth0, ppc_4xx_eth1

Type run flash_nfs to mount root filesystem over NFS

=> pci
Scanning PCI devices on bus 0
BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
_____________________________________________________________
00.06.00   0x1002     0x5960     Display controller      0x00
00.06.01   0x1002     0x5940     Display controller      0x80
=> pci header 0.6.0
   vendor ID =                   0x1002
   device ID =                   0x5960
   command register =            0x0007
   status register =             0x02b0
   revision ID =                 0x01
   class code =                  0x03 (Display controller)
   sub class code =              0x00
   programming interface =       0x00
   cache line =                  0x08
   latency time =                0x80
   header type =                 0x80
   BIST =                        0x00
   base address 0 =              0x80000008
   base address 1 =              0x00001001
   base address 2 =              0x88000000
   base address 3 =              0x00000000
   base address 4 =              0x00000000
   base address 5 =              0x00000000
   cardBus CIS pointer =         0x00000000
   sub system vendor ID =        0x18bc
   sub system ID =               0x0580
   expansion ROM base address =  0x00000000
   interrupt line =              0xff
   interrupt pin =               0x01
   min Grant =                   0x08
   max Latency =                 0x00
=> md 0x88000000
88000000:Machine Check Exception.
Caused by (from msr): regs 1fe51c08 Data Read PLB Error
NIP: 1FF859DC XER: 00000000 LR: 1FF859AC REGS: 1fe51c08 TRAP: 0200 DEAR: 
00000000
MSR: 00029000 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 00

GPR00: 1FFB2178 1FE51CF8 1FE51F24 1FFA0528 1FFB2178 00000003 00000003 
2E6C1FF4
GPR08: 1FF5A408 00000020 05F5E101 2FAF080A 00000008 055661DE 1FFB0700 
1FF9F8F4
GPR16: 1FF9F870 1FFA0530 1FFA0528 1FF9F120 1FFABC34 1FE51D00 88000000 
88000000
GPR24: 1FE51D00 00000040 00000000 00000004 1FE51D00 00000004 1FFB2178 
88000000
Call backtrace:
1FF859AC 1FF702D4 1FF7B948 1FF7B04C 1FF7B1BC 1FF7DDD0 1FF59F64
1FF58710
machine check


U-Boot 2009.01 ( 3? 18 2009 - 18:52:14)

CPU:   AMCC PowerPC 460EX Rev. A at 800 MHz (PLB=200, OPB=100, EBC=100 MHz)
        Security/Kasumi support
        Bootstrap Option H - Boot ROM Location I2C (Addr 0x52)
        Internal PCI arbiter disabled
        32 kB I-Cache 32 kB D-Cache
Board: Canyonlands - AMCC PPC460EX Evaluation Board, 1*PCIe/1*SATA, Rev. 14
I2C:   ready
DTT:   1 is 40 C
DRAM:  512 MB (ECC not enabled, 400 MHz, CL3)
FLASH: 64 MB
NAND:  128 MiB
PCI:   Bus Dev VenId DevId Class Int
         00  06  1002  5960  0300  ff
         00  06  1002  5940  0380  ff
PCIE1: link is not up.
PCIE1: initialization as root-complex failed
Net:   ppc_4xx_eth0, ppc_4xx_eth1

Type run flash_nfs to mount root filesystem over NFS

=>


Regards,
Kazuaki Ichinohe



Kazuaki Ichinohe ????????:
> Hi Anatolij, Stefan,
> 
> The exception was generated.
> 
> ----------------------------------
> U-Boot 2009.01 ( 3? 18 2009 - 21:16:24)
> 
> CPU:   AMCC PowerPC 460EX Rev. A at 800 MHz (PLB=200, OPB=100, EBC=100 MHz)
>        Security/Kasumi support
>        Bootstrap Option H - Boot ROM Location I2C (Addr 0x52)
>        Internal PCI arbiter disabled
>        32 kB I-Cache 32 kB D-Cache
> Board: Canyonlands - AMCC PPC460EX Evaluation Board, 1*PCIe/1*SATA, Rev. 14
> I2C:   ready
> DTT:   1 is 39 C
> DRAM:  512 MB (ECC not enabled, 400 MHz, CL3)
> FLASH: 64 MB
> NAND:  128 MiB
> PCI:   Bus Dev VenId DevId Class Int
>         00  06  1002  5960  0300  ff
>         00  06  1002  5940  0380  ff
> PCIE1: link is not up.
> PCIE1: initialization as root-complex failed
> Video: ATI Radeon video card (1002, 5960) found @(0:6:0)
> Machine Check Exception.
> Caused by (from msr): regs 1fe3ac30 Data Read PLB Error
> NIP: 1FF82B10 XER: 00000000 LR: 1FF82AE8 REGS: 1fe3ac30 TRAP: 0200 DEAR: 
> 00000000
> MSR: 00021000 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00
> 
> GPR00: 08000080 1FE3AD20 1FE3AF20 00000000 80003018 00000018 1FE401BC 
> 1CA13040
> GPR08: 1FF43408 88000000 05F5E101 1FF94E10 00000006 055671DE 1FFABD00 
> 1FFBF000
> GPR16: FFFE21E8 FFFE21E8 FFFE2068 FFFE21E8 FFFE21E8 FFFE2068 FFFE2068 
> FFFD572C
> GPR24: E3000D80 1FE3AF20 1FE3AF08 1FE3AE88 1FE3AE80 00003000 1FFADF20 
> 1FE40198
> Call backtrace:
> 1FF82AE8 1FF83458 1FF82498 1FF5FCDC 1FF42EF0 1FF41710
> machine check
> 
> 
> Regards,
> Kazuaki Ichinohe
> 
> 
> Kazuaki Ichinohe ????????:
>> Hi Anatolij !
>>
>>  > Kazuaki, could you please change VIDEO_IO_OFFSET to 0xD0800000 and
>>  > test again?
>>
>> I'll try it.
>>
>> Regards,
>> Kazuaki Ichinohe.
>>
>> Anatolij Gustschin ????????:
>>> Hi Stefan, Kazuaki,
>>>
>>> Stefan Roese wrote:
>>>> On Wednesday 18 March 2009, Kazuaki Ichinohe wrote:
>>>>> U-boot version: u-boot-2009.01
>>>>> boot log is the following.
>>>>>
>>>>> U-Boot 2009.01 ( 3? 18 2009 - 09:38:17)
>>>>>
>>>>> ?PU:   AMCC PowerPC 460EX Rev. A at 600 MHz (PLB=200, OPB=100, 
>>>>> EBC=100 MHz)
>>>>>         Security/Kasumi support
>>>>>         Bootstrap Option H - Boot ROM Location I2C (Addr 0x52)
>>>>>         Internal PCI arbiter disabled
>>>>>         32 kB I-Cache 32 kB D-Cache
>>>>> Board: Canyonlands - AMCC PPC460EX Evaluation Board, 1*PCIe/1*SATA, 
>>>>> Rev. 14
>>>>> I2C:   ready
>>>>> DTT:   1 is 38 C
>>>>> DRAM:  512 MB (ECC not enabled, 400 MHz, CL3)
>>>>> FLASH: 64 MB
>>>>> NAND:  128 MiB
>>>>> PCI:   Bus Dev VenId DevId Class Int
>>>>>          00  06  1002  5960  0300  ff
>>>>>          00  06  1002  5940  0380  ff
>>>>> PCIE1: link is not up.
>>>>> PCIE1: initialization as root-complex failed
>>>>> Video: ATI Radeon video card (1002, 5960) found @(0:6:0)
>>>>> Machine Check Exception.
>>>>> Caused by (from msr): regs 1fe3ac30 Data Read PLB Error
>>>>> NIP: 1FF82B10 XER: 00000000 LR: 1FF82AE8 REGS: 1fe3ac30 TRAP: 0200 
>>>>> DEAR:
>>>>> 70600027
>>>>> MSR: 00021000 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 00
>>>> Anatolij, do you have any ideas what's going wrong here?
>>>
>>> one issue is incorrect VIDEO_IO_OFFSET in the board config file, it
>>> should be 0xD0800000 instead of 0xD8000000, i think.
>>>
>>> Kazuaki, could you please change VIDEO_IO_OFFSET to 0xD0800000 and
>>> test again?
>>>
>>> Best regards,
>>> Anatolij
>>>
>>
>>
> 
>