[U-Boot-Users] [PATCH 05/08]: mpc7448hpc2 board flash support

Wed Aug 2 04:34:54 CEST 2006

> > > > The difference is caused by ENDIAN issue.  Anyway, I will
> > > consider it
> > > > carefully.
> > > 
> > > Oops? Can you program your flash for exanmple with a BDI200?
> > Hardware issue. I can program it with BDI2000,  PowerTAP and UsbTAP 
> > under CodeWarrior.
> > Any suggestion?
> 
> Please explain. When the BDI can program the flash,  the  CFI 
>  driver should be able to do the same. What exactly is the problem?
> 

mpc7448 processor is BIG ENDIAN, while the tsi108 bridge connects the
flash chip  
by little ENDIA mode.  When I set __LITTLE_ENDIA in the cfi_flash
driver, everything seems
OK, but  the written bytes are swapped (see the following log). 
Now, It seems that if I define CFG_FLASH_USE_BUFFER_WRITE in my config
file, this issue 
can be solved. I will do more test on my board.
While, how can I set __LITTLE_ENDIA mode for cfi_driver file in a BIG
ENDIA system?
Thanks.

////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////
Please see the following log with general cfi_driver. 
The log shows my problem .
////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////
U-Boot 1.1.4-ge4f3fb8b-dirty (Aug  2 2006 - 10:01:47) Freescale MPC7448
HPC II

CPU:   MPC7448 v2.0 @ 1336 MHz
BOARD: MPC7448 HPC II
DRAM:  512 MB
FLASH: ## Unknown FLASH on Bank 1 - Size = 0x00000000 = 0 MB
16 MB
In:    serial
Out:   serial
Err:   serial
BUS:   167 MHz
MEM:   200 MHz
CACHE: L1 Instruction cache - 32KB 8-way ENABLED
       L1 Data cache - 32KB 8-way ENABLED
       Unified L2 cache - 1MB 8-way DISABLED
Net:   TSI108_eth0, TSI108_eth1
Hit any key to stop autoboot:  0
=> fli

Bank # 1: CFI conformant FLASH (32 x 16)  Size: 16 MB in 128 Sectors
 Erase timeout 16384 ms, write timeout 1 ms, buffer write timeout 5 ms,
buffer s
ize 32
  Sector Start Addresses:
    FF000000      FF020000      FF040000      FF060000      FF080000
    FF0A0000      FF0C0000      FF0E0000      FF100000      FF120000
    FF140000      FF160000      FF180000      FF1A0000      FF1C0000
    FF1E0000      FF200000      FF220000      FF240000      FF260000
    FF280000      FF2A0000      FF2C0000      FF2E0000      FF300000
    FF320000      FF340000      FF360000      FF380000      FF3A0000
    FF3C0000      FF3E0000      FF400000      FF420000      FF440000
    FF460000      FF480000      FF4A0000      FF4C0000      FF4E0000
    FF500000      FF520000      FF540000      FF560000      FF580000
    FF5A0000      FF5C0000      FF5E0000      FF600000      FF620000
    FF640000      FF660000      FF680000      FF6A0000      FF6C0000
    FF6E0000      FF700000      FF720000      FF740000      FF760000
    FF780000      FF7A0000      FF7C0000      FF7E0000      FF800000
    FF820000      FF840000      FF860000      FF880000      FF8A0000
    FF8C0000      FF8E0000      FF900000      FF920000      FF940000
    FF960000      FF980000      FF9A0000      FF9C0000      FF9E0000
    FFA00000      FFA20000      FFA40000      FFA60000      FFA80000
    FFAA0000      FFAC0000      FFAE0000      FFB00000      FFB20000
    FFB40000      FFB60000      FFB80000      FFBA0000      FFBC0000
    FFBE0000      FFC00000      FFC20000      FFC40000      FFC60000
    FFC80000      FFCA0000      FFCC0000      FFCE0000      FFD00000
    FFD20000      FFD40000      FFD60000      FFD80000      FFDA0000
    FFDC0000      FFDE0000      FFE00000      FFE20000      FFE40000
    FFE60000      FFE80000      FFEA0000      FFEC0000      FFEE0000
    FFF00000      FFF20000      FFF40000      FFF60000      FFF80000
    FFFA0000      FFFC0000      FFFE0000

Bank # 2: missing or unknown FLASH type
=> md ff000000
ff000000: 27051956 552d426f 6f742031 2e312e34    '..VU-Boot 1.1.4
ff000010: 2d673230 38653063 38312d64 69727479    -g208e0c81-dirty
ff000020: 20284a75 6c203131 20323030 36202d20     (Jul 11 2006 -
ff000030: 31313a34 343a3333 29204672 65657363    11:44:33) Freesc
ff000040: 616c6520 4d504337 34343820 48504320    ale MPC7448 HPC
ff000050: 49490000 00000000 00000000 00000000    II..............
ff000060: 00000000 00000000 00000000 00000000    ................
ff000070: 00000000 00000000 00000000 00000000    ................
ff000080: 00000000 00000000 00000000 00000000    ................
ff000090: 00000000 00000000 00000000 00000000    ................
ff0000a0: 00000000 00000000 00000000 00000000    ................
ff0000b0: 00000000 00000000 00000000 00000000    ................
ff0000c0: 00000000 00000000 00000000 00000000    ................
ff0000d0: 00000000 00000000 00000000 00000000    ................
ff0000e0: 00000000 00000000 00000000 00000000    ................
ff0000f0: 00000000 00000000 00000000 00000000    ................
=> erase fff80000 fff9ffff

. done
Erased 1 sectors
=> cp.b ff000000 fff80000 20000
Copy to Flash... done
=> md fff80000
fff80000: 56190527 6f422d55 3120746f 342e312e    V..'oB-U1 to4.1.
fff80010: 3032672d 63306538 642d3138 79747269    02g-c0e8d-18ytri
fff80020: 754a2820 3131206c 30303220 202d2036    uJ( 11 l002  - 6
fff80030: 343a3131 33333a34 72462029 63736565    4:1133:4rF )csee
fff80040: 20656c61 3743504d 20383434 20435048     ela7CPM 844 CPH
fff80050: 00004949 00000000 00000000 00000000    ..II............
fff80060: 00000000 00000000 00000000 00000000    ................
fff80070: 00000000 00000000 00000000 00000000    ................
fff80080: 00000000 00000000 00000000 00000000    ................
fff80090: 00000000 00000000 00000000 00000000    ................
fff800a0: 00000000 00000000 00000000 00000000    ................
fff800b0: 00000000 00000000 00000000 00000000    ................
fff800c0: 00000000 00000000 00000000 00000000    ................
fff800d0: 00000000 00000000 00000000 00000000    ................
fff800e0: 00000000 00000000 00000000 00000000    ................
fff800f0: 00000000 00000000 00000000 00000000    ................
=>