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月 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月 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 さんは書きました:
Hi Anatolij, Stefan,
The exception was generated.
U-Boot 2009.01 ( 3月 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 さんは書きました:
Hi Anatolij !
Kazuaki, could you please change VIDEO_IO_OFFSET to 0xD0800000 and test again?
I'll try it.
Regards, Kazuaki Ichinohe.
Anatolij Gustschin さんは書きました:
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譛 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