Hi all

We recently ported a MPC8548 board from U-Boot 1.2 to U-Boot 2009.01. U-Boot seems to work fine except for Flash operations, and we can boot Linux 2.6.27 kernel using nfs.

We are using CFI ( AMD nor flash). The problem presented it self as the inability to erase a sector of flash. With further investigation we became aware that we can not red the flash correctly. It seams like the 1st 16bits of the 32 bit value is read correctly, but instead of reading the second 16bits, the 1st 16 bits are repeated. as shown below ( comparing the output of U-Boot 2009 and U-Boot 1.2

U-Boot 2009:

UBoot=> md f8000020

f8000020: 65716571 73007300 00000000 00000000 eqeqs.s.........

U-Boot 1.2

UBoot=> md f8000020

f8000020: 65717575 73000000 00000000 00000000 equus...........

The CFI information is consistent between U-Boot 1.2 and U-Boot 2009. (flash vendor = 2, portwidth = 0x4 , buffer_size = 0x20, erase_blk_tout = 0x4000, cmd_reset = 0xf0, cfi_version = 0x3133) which results in FLASH_CFI_32 functions.

The Flash And a CPLD is inside the same LAW and we are able to read teh values in the CPLD correctly with both U-Boot versions. Could this be a TLB problem or have we missed something concerning the CFI. My bootpromt is as follows :

U-Boot 2009.01-00226-g6c6e042-dirty-svn1188 (Feb 02 2009 - 17:35:04)

CPU: 8548E, Version: 1.1, (0x80390011)

Core: E500, Version: 1.0, (0x80210010)

Clock Configuration:

CPU0:990 MHz, CCB:396 MHz,

DDR:198 MHz (396 MT/s data rate), LBC:49.500 MHz L1: D-cache 32 kB enabled

I-cache 32 kB enabled

Board: Equus MPC8548

PCI1: 64 bit, 66 MHz, sync

I2C: ready

DRAM: Initializing

fsl_ddr_sdram

starting at step 1 (STEP_GET_SPD)

DDR: DDR II rank density = 0x20000000

Equus hacked RD_EN to 0 (mpc8xxx/ddr/ddr2_dimm_params

Setting Equus custom ddr controll options

DDR: 512 MB

Top of RAM usable for U-Boot at: 10000000

Reserving 301k for U-Boot at: 0ffb0000

Reserving 136k for malloc() at: 0ff8e000

Reserving 72 Bytes for Board Info at: 0ff8dfb8

Reserving 68 Bytes for Global Data at: 0ff8df74

Stack Pointer at: 0ff8df58

New Stack Pointer is: 0ff8df58

Now running in RAM - U-Boot at: 0ffb0000

FLASH: flash detect cfi

fwc addr f8000000 cmd f0 f0 8bit x 8 bit

fwc addr f8000000 cmd ff ff 8bit x 8 bit

fwc addr f8000055 cmd 98 98 8bit x 8 bit

is= cmd 51(Q) addr f8000010 is= 0 51

fwc addr f8000555 cmd 98 98 8bit x 8 bit

is= cmd 51(Q) addr f8000010 is= 0 51

fwc addr f8000000 cmd f0 f0f0 16bit x 8 bit

fwc addr f8000000 cmd ff ffff 16bit x 8 bit

fwc addr f80000aa cmd 98 9898 16bit x 8 bit

is= cmd 51(Q) addr f8000020 is= 6571 5151

fwc addr f8000aaa cmd 98 9898 16bit x 8 bit

is= cmd 51(Q) addr f8000020 is= 6571 5151

fwc addr f8000000 cmd f0 00f0 16bit x 16 bit

fwc addr f8000000 cmd ff 00ff 16bit x 16 bit

fwc addr f80000aa cmd 98 0098 16bit x 16 bit

is= cmd 51(Q) addr f8000020 is= 6571 0051

fwc addr f8000aaa cmd 98 0098 16bit x 16 bit

is= cmd 51(Q) addr f8000020 is= 6571 0051

fwc addr f8000000 cmd f0 f0f0f0f0 32bit x 8 bit

value 0Xf0f0f0f0

addr 0Xf8000000

fwc addr f8000000 cmd ff ffffffff 32bit x 8 bit

value 0Xffffffff

addr 0Xf8000000

fwc addr f8000154 cmd 98 98989898 32bit x 8 bit

value 0X98989898

addr 0Xf8000154

is= cmd 51(Q) addr f8000040 is= 00510051 51515151

fwc addr f8001554 cmd 98 98989898 32bit x 8 bit

value 0X98989898

addr 0Xf8001554

is= cmd 51(Q) addr f8000040 is= 00510051 51515151

fwc addr f8000000 cmd f0 00f000f0 32bit x 16 bit

value 0Xf000f0

addr 0Xf8000000

fwc addr f8000000 cmd ff 00ff00ff 32bit x 16 bit

value 0Xff00ff

addr 0Xf8000000

fwc addr f8000154 cmd 98 00980098 32bit x 16 bit

value 0X980098

addr 0Xf8000154

is= cmd 51(Q) addr f8000040 is= 00510051 00510051

is= cmd 52(R) addr f8000044 is= 00520052 00520052

is= cmd 59(Y) addr f8000048 is= 00590059 00590059

device interface is 2

found port 4 chip 2 port 32 bits chip 16 bits

00 : 51 52 59 02 00 40 00 00 00 00 00 27 36 00 00 07 QRY..@.....'6... 10 : 07 0a 00 03 05 04 00 1a 02 00 05 00 01 ff 01 00 ................ 20 : 02 00 00 00 00 00 00 00 00 00 00 00 00 fe c1 51 ...............Q fwc addr f8000000 cmd f0 00f000f0 32bit x 16 bit

value 0Xf000f0

addr 0Xf8000000

fwc addr f8001554 cmd aa 00aa00aa 32bit x 16 bit

value 0Xaa00aa

addr 0Xf8001554

fwc addr f8000aa8 cmd 55 00550055 32bit x 16 bit

value 0X550055

addr 0Xf8000aa8

fwc addr f8001554 cmd 90 00900090 32bit x 16 bit

value 0X900090

addr 0Xf8001554

fwc addr f8000000 cmd f0 00f000f0 32bit x 16 bit

value 0Xf000f0

addr 0Xf8000000

fwc addr f8000154 cmd 98 00980098 32bit x 16 bit

value 0X980098

addr 0Xf8000154

manufacturer is 2

manufacturer id is 0x5

device id is 0xd402

device id2 is 0x0

cfi version is 0x3133

size_ratio 2 port 32 bits chip 16 bits

found 1 erase regions

erase region 0: 0x020001ff

erase_region_count = 512 erase_region_size = 131072

fwc addr f8000000 cmd f0 00f000f0 32bit x 16 bit

value 0Xf000f0

addr 0Xf8000000

flash_protect ON: from 0xFFF80000 to 0xFFFC3EFF

protect on 510

protect on 511

flash_protect ON: from 0xFFF40000 to 0xFFF7FFFF

protect on 509

128 MB

L2: 512 KB already enabled

*** Warning - bad CRC, using default environment

PH DO custom stuffs in board_env_mod

BIE:

PCI: 64 bit, 66 MHz, sync, host, arbiter

R0 bus_start: 20000000 phys_start: 0 size: 0

Scanning PCI bus 00

PCI Scan: Found Bus 0, Device 20, Function 0

PCI1 on bus 00 - 00

In: serial

Out: serial

Err: serial

U-Boot relocated to 0ffb0000

Net: eTSEC0: PHY is Unknown/Generic PHY (fc4b1)

eTSEC1: PHY is Unknown/Generic PHY (fc4b1)

eTSEC2: PHY is Unknown/Generic PHY (fc4b1)

eTSEC0, eTSEC1, eTSEC2

Hit any key to stop autoboot: 0

UBoot=> md f8000010

f8000000: 27052705 d402d402 49114911 00740074 '.'.....I.I..t.t f8000010: 00000000 00000000 37493749 05070507 ........7I7I.... f8000020: 65716571 73007300 00000000 00000000 eqeqs.s.........

Thanks for any help Pieter