Hi Brad,
The CFI flash support for different bus widths is very important to us as we produce boards with various bus widths. Do you know if LINUX can be configured to automatically configure itself to to system bus width?
What are the AMD issues you referred to in your last post?
We intend our next board to use AMD 16 bit LV128M abd LV256M mirror flash parts with both 16 bit and 32 bit wide busses. I will let you know how it runs on these boards when they arrive.
The latest patch running on my CPU: MPC850 FLASH :AMD L320DB * 4 Chip width: 8 Port Width: 32
Total flash size 16Mb.
The latest patch runs better. It gets the flash size correct but still prints out a bus width of 64 bits in flash info. I fails to write the environment to flash.
I have defined CFG_FLASH_PROTECTION. I shall try running again with this option disabled.
Here is its output with DEBUG enabled.
U-Boot 1.0.0 (Feb 12 2004 - 11:14:27)
CPU: XPC850xxZTB at 48 MHz: 2 kB I-Cache 1 kB D-Cache Board QUANTUM, Serial No: 12345 DRAM: 32 MB FLASH: erase_region_count = 8 erase_region_size = 8192 erase_region_count = 63 erase_region_size = 65536 16 MB *** Warning - bad CRC, using default environment
In: serial Out: serial Err: serial Net: SCC ETHERNET
Enter password - autoboot in 5 sec... => fli
Bank # 1: CFI conformant FLASH (64 x 8) Size: 16 MB in 71 Sectors EraU-Boot 1.0.0 (Feb 12 2004 - 11:14:27)
CPU: XPC850xxZTB at 48 MHz: 2 kB I-Cache 1 kB D-Cache Board QUANTUM, Serial No: 12345 DRAM: 32 MB FLASH: erase_region_count = 8 erase_region_size = 8192 erase_region_count = 63 erase_region_size = 65536 16 MB *** Warning - bad CRC, using default environment
In: serial Out: serial Err: serial Net: SCC ETHERNET
Enter password - autoboot in 5 sec... => fli
Bank # 1: CFI conformant FLASH (64 x 8) Size: 16 MB in 71 Sectors Erase timeout 16384 ms, write timeout 0 ms, buffer write timeout 1 ms, buffer size 1 Sector Start Addresses: FF000000 FF008000 FF010000 FF018000 FF020000 FF028000 FF030000 FF038000 FF040000 FF080000 FF0C0000 FF100000 FF140000 FF180000 FF1C0000 FF200000 FF240000 FF280000 FF2C0000 FF300000 FF340000 FF380000 FF3C0000 FF400000 FF440000 FF480000 FF4C0000 FF500000 FF540000 FF580000 FF5C0000 FF600000 FF640000 FF680000 FF6C0000 FF700000 FF740000 FF780000 FF7C0000 FF800000 FF840000 FF880000 FF8C0000 FF900000 FF940000 FF980000 FF9C0000 FFA00000 FFA40000 FFA80000 FFAC0000 FFB00000 FFB40000 FFB80000 FFBC0000 FFC00000 FFC40000 FFC80000 FFCC0000 FFD00000 FFD40000 FFD80000 FFDC0000 FFE00000 FFE40000 FFE80000 FFEC0000 FFF00000 (RO) FFF40000 FFF80000 FFFC0000 => saveenv Saving Environment to Flash... . Un-Protected 1 sectors . Un-Protected 1 sectors Erasing Flash... . done Erased 1 sectors Writing to Flash... Timeout writing to Flash . Protected 1 sectors . Protected 1 sectors
Keep up the good work.
Shlomo Kut
Software Engineer MKS Instruments Tenta Products Tel: 972-8-9181015 Fax: 972-8-9181020 www.mksinst.com
"Brad Kemp" Brad.Kemp@Seranoa.com 02/11/2004 06:29 AM
To: Shlomo_Kut@mksinst.com, u-boot-users@lists.sourceforge.net cc: Subject: RE: cfi flash problem
Shlomo, Did you apply the patch that I sent out a few days ago? It fixes a problem with x8/x16 size detection. Brad
-----Original Message----- From: Shlomo_Kut@mksinst.com [mailto:Shlomo_Kut@mksinst.com] Sent: Wednesday, February 11, 2004 9:22 AM To: u-boot-users@lists.sourceforge.net Cc: Brad Kemp Subject: cfi flash problem
Hi,
I am having a problem with cfi_flash.c on my board.
CPU: MPC850 FLASH :AMD L320DB * 4 Chip width: 8 Port Width: 32
Total flash size 16Mb.
It incorrectly reports the flash size as being 32Mb instead of 16Mb. This is because it incorrectly identifies the port width as being 64 bit instead of 32 bit.
When I start U-BOOT and run fli I get the following:
U-Boot 1.0.0 (Feb 11 2004 - 11:21:31)
CPU: XPC850xxZTB at 48 MHz: 2 kB I-Cache 1 kB D-Cache Board QUANTUM, MKS U-BOOT VERSION 1.10, Serial No: 12345 Watchdog enabled DRAM: 32 MB FLASH: flash detect cfi 32 MB *** Warning - bad CRC, using default environment
In: serial Out: serial Err: serial Net: SCC ETHERNET
Enter password - autoboot in 5 sec... => fli
Bank # 1: CFI conformant FLASH (64 x 8) Size: 32 MB in 71 Sectors Erase timeout 16384 ms, write timeout 0 ms, buffer write timeout 1 ms, buffer size 1 Sector Start Addresses: FF000000 FF010000 FF020000 FF030000 FF040000 FF050000 FF060000 FF070000 FF080000 FF100000 FF180000 FF200000 FF280000 FF300000 FF380000 FF400000 FF480000 FF500000 FF580000 FF600000 FF680000 FF700000 FF780000 FF800000 FF880000 FF900000 FF980000 FFA00000 FFA80000 FFB00000 FFB80000 FFC00000 FFC80000 FFD00000 FFD80000 FFE00000 FFE80000 FFF00000 FFF80000 00000000 00080000 00100000 00180000 00200000 00280000 00300000 00380000 00400000 00480000 00500000 00580000 00600000 00680000 00700000 00780000 00800000 00880000 00900000 00980000 00A00000 00A80000 00B00000 00B80000 00C00000 00C80000 00D00000 00D80000 00E00000 00E80000 00F00000 00F80000 Maybe the message "flash detect cfi" should be written in a debug()? When I compile with the DEBUG option set I see the following:
CPU: XPC850xxZTB at 48 MHz: 2 kB I-Cache 1 kB D-Cache Board QUANTUM, Serial No: 12345it>(Ljava/lang/String;)V/server Watchdog enabledRx transfer timeout DRAM: 32 MB FLASH: flash detect cfi fwc addr ff000000 cmd ff ff 8bit x 8 biteption.<init>(Ljava/lang/String;)VValue( fwc addr ff000055 cmd 98 98 8bit x 8 bit is= cmd 51(Q) addr ff000010 is= ff 51xcept java/io/F fwc addr ff000000 cmd ff ffff 16bit x 8 bit vib/utils/Timer.run()V java/la fwc addr ff000000 cmd ff 00ff 16bit x 16 bit cpm_spi_io: Tx/Rx transfer fwc addr ff0000aa cmd 98 0098 16bit x 16 bit is= cmd 51(Q) addr ff000020 is= ffff 0051ror during writeers/Simp fwc addr ff000000 cmd ff ffffffff 32bit x 8 bittputStream.wr is= cmd 51(Q) addr ff000040 is= ff00ff00 00510051 fwc addr ff000000 cmd ff 000000ff 32bit x 32 bit fwc addr ff000154 cmd 98 00000098 32bit x 32 bit is= cmd 51(Q) addr ff000040 is= ffffff00 00000051 fwc addr ff000000 cmd ff ffffffffffffffff 64 bit x 8 bit fwc addr ff0002a8 cmd 98 9898989898989898 64 bit x 8 bit is= cmd 51(Q) addr ff000080 is= 5151515151515151 5151515151515151 is= cmd 52(R) addr ff000088 is= 5252525252525252 5252525252525252 is= cmd 59(Y) addr ff000090 is= 5959595959595959 5959595959595959 found port 8 chip 1 port 64 bits chip 8 bits manufacturer is 2 size_ration 8 port 64 bits chip 8 bits found 2 erase regions fwc addr ff000000 cmd ff ffffffffffffffff 64 bit x 8 bit 32 MB Can anybody out there help? Could these random characters be comming fom the watchdog?
regards
Shlomo Kut
Software Engineer MKS Instruments Tenta Products Tel: 972-8-9181015 Fax: 972-8-9181020 www.mksinst.com