Scott Wood-2 wrote:
>
> Dario Presti wrote:
>> Hello,
>> I'm working on MPC8323_rdb board whit 1 new flash device S29GL512P
>> instead
>> of original flash devices.
>> the bootloader is u-boot 1.1.6 (I know is too old and I'm going to
>> upgrade
>> it) and the kernel is 2.6.20.
>
> 2.6.20 is also too old. :-)
>
>> I did this modification to the bootloader to support new flash:
>>
>> 1)I modified the board/mpc8323rdb/config.mk file to set TEXT_BASE from
>> 0xFE000000 TO 0xFC000000
>> 2)I modified the file /include/configs/MPC8323RDB.h:
>>
>> #define CFG_FLASH_BASE 0xFC000000 /* FLASH base address
>> */
>> #define CFG_FLASH_SIZE 64 /* FLASH size is 64M */
>> #define CFG_LBLAWBAR0_PRELIM CFG_FLASH_BASE /* Window base at flash base
>> */
>> #define CFG_LBLAWAR0_PRELIM 0x80000019 /* 64MB window size */
>> #define CFG_OR0_PRELIM 0xfc006ff7 /* 64MB Flash size */
>> #define CFG_MAX_FLASH_BANKS 1 /* number of banks */
>> #define CFG_MAX_FLASH_SECT 512 /* sectors per device */
>>
>> 3)I modify and recompiled .dts file
>>
>> fl...@fc000000 {
>> device_type = "jedec-flash";
>> compatible = "direct-mapped";
>> probe-type = "CFI";
>> reg = <0xfc000000 0x1000000>;
>> bank-width = <0x2>;
>> partitions = <0x0 0x80001 0x80000 0x20000 0xa0000 0x180000
>> 0x220000
>> 0xde0000>;
>> partition-names = "U-Boot", "dtb", "Kernel", "rootfs";
>> };
>>
>> but the kernel find the flash at 0xFE000000 and the boot stop because
>> kernel
>> panic. The log is:
>
> Is the kernel even using that node, or some other means to determine the
> flash location? The "MPC8323RDB Flash Bank 1" messages make me think
> you've got a custom flash map driver.
>
> -Scott
> _______________________________________________
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> Linuxppc-dev@lists.ozlabs.org
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>
>
Thanks Scott,
I did not find where the custom map flash driver is in the kernel source,
where it is?
How can I say to the kernel to use device tree instead of custom map of
flash?
Regards
Dario
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