Hey Folks, we got a custom PPC-based board with a 2MB AM29LV160DB flash chip. I am trying to use U-Boots CFI driver but it seems that there are still some problems with this configuration, reading e.g. the wrong vendor id. This is my output if I boot the board:
0.01> U-Boot 1.1.6-ge4bbd8da-dirty (Dec 8 2006 - 12:25:48) 0.01> 0.01> CPU: MPC5200 v1.2, Core v1.1 at 396 MHz 0.03> Bus 132 MHz, IPB 132 MHz, PCI 33 MHz 0.03> Board: MPC5200 ECU 0.03> I2C: 85 kHz, ready 0.03> DRAM: 8 MB 0.03> Top of RAM usable for U-Boot at: 00800000 0.03> Reserving 164k for U-Boot at: 007d6000 0.04> Reserving 129k for malloc() at: 007b5c00 0.04> Reserving 68 Bytes for Board Info at: 007b5bbc 0.04> Reserving 56 Bytes for Global Data at: 007b5b84 0.04> Stack Pointer at: 007b5b68 0.06> New Stack Pointer is: 007b5b68 0.10> Now running in RAM - U-Boot at: 007d6000 0.10> FLASH: flash detect cfi 0.12> fwc addr ffe00000 cmd 0 0 8bit x 8 bit 0.12> fwc addr ffe00055 cmd 98 98 8bit x 8 bit 0.12> is= cmd 51(Q) addr ffe00010 is= ff 51 0.12> fwc addr ffe00000 cmd 0 0000 16bit x 8 bit 0.14> fwc addr ffe000aa cmd 98 9898 16bit x 8 bit 0.14> is= cmd 51(Q) addr ffe00020 is= ffff 5151 0.14> fwc addr ffe00000 cmd 0 0000 16bit x 16 bit 0.14> fwc addr ffe000aa cmd 98 0098 16bit x 16 bit 0.15> is= cmd 51(Q) addr ffe00020 is= ffff 0051 0.15> fwc addr ffe00000 cmd 0 00000000 32bit x 8 bit 0.15> fwc addr ffe00154 cmd 98 98989898 32bit x 8 bit 0.15> is= cmd 51(Q) addr ffe00040 is= ffffffff 51515151 0.17> fwc addr ffe00000 cmd 0 00000000 32bit x 16 bit 0.17> fwc addr ffe00154 cmd 98 00980098 32bit x 16 bit 0.17> is= cmd 51(Q) addr ffe00040 is= ffffffff 00510051 0.18> fwc addr ffe00000 cmd 0 00000000 32bit x 32 bit 0.18> fwc addr ffe00154 cmd 98 00000098 32bit x 32 bit 0.18> is= cmd 51(Q) addr ffe00040 is= ffffffff 00000051 0.18> fwrite addr ffe00000 cmd 0 0000000000000000 64 bit x 8 bit 0.20> fwrite addr ffe002a8 cmd 98 9898989898989898 64 bit x 8 bit 0.20> is= cmd 51(Q) addr ffe00080 is= ffffffffffffffff 5151515151515151 0.21> fwrite addr ffe00000 cmd 0 0000000000000000 64 bit x 16 bit 0.21> fwrite addr ffe002a8 cmd 98 0098009800980098 64 bit x 16 bit 0.21> is= cmd 51(Q) addr ffe00080 is= ffffffffffffffff 0051005100510051 0.23> fwrite addr ffe00000 cmd 0 0000000000000000 64 bit x 32 bit 0.23> fwrite addr ffe002a8 cmd 98 0000009800000098 64 bit x 32 bit 0.23> is= cmd 51(Q) addr ffe00080 is= ffffffffffffffff 0000005100000051 0.25> fwrite addr ffe00000 cmd 0 0000000000000000 64 bit x 64 bit 0.25> fwrite addr ffe002a8 cmd 98 0000000000000098 64 bit x 64 bit 0.25> is= cmd 51(Q) addr ffe00080 is= ffffffffffffffff 0000000000000051 0.26> not found 0.26> ## Unknown FLASH on Bank 0 - Size = 0x00000000 = 0 MB 0.26> flash_protect ON: from 0xFFF00000 to 0xFFF23FFF 0.26> flash_protect ON: from 0xFFE0FA00 to 0xFFE0FDFF 0.26> *** failed *** 0.28> ### ERROR ### Please RESET the board ###
There already was a discussion about this flash chip and u-boot but this thread doesn't came to an end.
http://www.nabble.com/Help%3A-flash-driver-for-CFI-complient-flash-t893564.h...
Any hints?
Best regards,
Andre