From mboxrd@z Thu Jan  1 00:00:00 1970
From: duckycool <duckycool@gmail.com>
Date: Tue, 15 Sep 2009 14:40:13 -0700 (PDT)
Subject: [U-Boot] No NAND device found!!! Freescale MPC8544+SAMSUNG 1GB
 Nand Flash , please help!
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Hi all,
   Correction, the nand flash is K9F8G08U0M.
   Please help

duckycool wrote:
> 
>  http://www.nabble.com/file/p25455541/nand_error.bmp nand_error.bmp Hi
> all,
>   I can't do READID with nand_get_flash_type in the nand_base.c
>   What I get is an error "No NAND device found!!!"
>   My board is freescale mpc8544 with samsung K9K8G08U0A, the device is
> supposed {NAND 1GiB 3,3V 8-bit",  0xD3, 0, 1024, 0, LP_OPTIONS} .
> 
>   What I did is copy the nand.c from /board/tqc/tqm85xx/nand.c into
> /board/freescale/mpc8544ds
>   Add #define CONFIG_CMD_NAND into MPC8544DS.h, setup TLB/LAW/BR/OR for
> nand flash.
>   Add RAM array of upm into /board/.../nand.c.
> 
>   When booting, I can get the chip select signal put low with scope.
>   Trace the code, it get both dev_id and tmp_id 0x000000ff.
> 
>   Per the /driver/mtd/nand/nand_base.c , /driver/mtd/nand/fsl_upm.c , and
> /board/.../nand.c ....
>   I break down the upm operation into the upm control(mamr, mar,
> IO_ADDR_R, IO_ADDR_W)
>   And then, I tried the low level register control under CodeWarrior
> command window, it's still failed.
> 
>   As below: (CCSRBR = 0xe0000000 , nand_flash_base = 0xff000000)
>   change 0xe0005070 0x30000008 (OP=11, pattern_offset=8)
>   change 0xe0005068 0x90000000
>   change 0xff000000 0x0
>   change 0xe0005070 0x0
>   change 0xe0005070 0x30000010
>   change 0xe0005068 0x00000000
>   change 0xff000000 0x0
>   change 0xe0005070 0x0
>   change 0xe0005070 0x30000008
>   change 0xe0005068 0x00000000
>   change 0xff000000 0x0
>   change 0xe0005070 0x0
>   display 0xff000000
> 
>   I don't know why? 
>   Any MARCO I should add ? 
>   Or any special operation should I add into nand_base.c ? 
>   Please help, thank you.
> 

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