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flash_query returning different device_id
- From: Ringo Pebam <ringo dot p at gmail dot com>
- To: ecos-discuss at ecos dot sourceware dot org, thomas dot koeller at baslerweb dot com
- Date: Wed, 30 Mar 2005 20:17:09 +0530
- Subject: [ECOS] flash_query returning different device_id
- Reply-to: Ringo Pebam <ringo dot p at gmail dot com>
Hi,
My eCos bootloader (with AM29LV128 flash device) fails at flash_query
(flash_am29xxxxx.inl).
In flash_hwr_init(), flash_query returns values as
id[0] = 0xe
id[1] = 0xea00 <-- device_id
id[2] = 0xf018
id[3] = 0xe59f
but in flash_am29xxxxx_parts.inl it's defined as
#ifdef CYGHWR_DEVS_FLASH_AMD_AM29LV128
{ // AM29LV128
device_id : FLASHWORD(0x227e),
.....
Hence, FLASH_ERR_DRV_WRONG_PART is returned.
// Did we find the device? If not, return error.
if (NUM_DEVICES == i)
return FLASH_ERR_DRV_WRONG_PART;
Which finally fails at flash_init() and exits without doing
flash_info.block_mask = ~(flash_info.block_size-1);
flash_info.init = 1;
And the flash_read finally fails.
With these very few informations I know that it will be tough to give
me good suggestions. But in if anybody had faced similar problem,
could you share some ideas or approach, please.
Regards,
Ringo
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