I still do not see how it (fails to) get from cfi_probe into cfi_cmdset_0002 ?
jglennon at getntds.com
jglennon at getntds.com
Wed Nov 7 18:07:22 EST 2001
I have re-read the HOW_TO! Is do_cfi_probe now replaced by do_map_probe? I
AM doing the "you have to dive into the routine 'do_cfi_probe()' I think...!
My system still fails qry_present, still not being CFI-smart...
To: 'David Woodhouse'
Subject: RE:... cfi_probe and cfi_cmdset_0002
>Are you 100% sure these are arranged as 4 8-bit devices side-by-side on the
>32-bit bus? It's more common in my experience to have 2 devices together in
>16-bit mode, and to have two such pairs consecutively mapped in the address
>space if there are four chips.
>Turn off CONFIG_MTD_CFI_ADV_OPTIONS and let it try all the probes.
Thank you, and OK, did that, new .config is attached below.
But still fails qry_present. It is NOT getting to the cfi_cmdset_0002 stuff
to unlock before doing the CFI query, so still sees normal flash, not the
CFI identification stuff.
Shall I send boot sequence, with (as says in HOW_TO) generous sprinkling of
<deleted to MTD stuff>
# Memory Technology Devices (MTD)
# CONFIG_MTD_PARTITIONS is not set
# User Modules And Translation Layers
# CONFIG_MTD_BLOCK is not set
# CONFIG_MTD_BLOCK_RO is not set
# CONFIG_FTL is not set
# CONFIG_NFTL is not set
# RAM/ROM/Flash chip drivers
# CONFIG_MTD_JEDECPROBE is not set
# CONFIG_MTD_CFI_ADV_OPTIONS is not set
# CONFIG_MTD_CFI_INTELEXT is not set
# CONFIG_MTD_RAM is not set
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_ABSENT is not set
# CONFIG_MTD_OBSOLETE_CHIPS is not set
# Mapping drivers for chip access
# CONFIG_MTD_TQM8XXL is not set
# CONFIG_MTD_RPXLITE is not set
# CONFIG_MTD_CFI_FLAGADM is not set
# CONFIG_MTD_PCI is not set
# Self-contained MTD device drivers
# CONFIG_MTD_PMC551 is not set
# CONFIG_MTD_SLRAM is not set
# CONFIG_MTD_MTDRAM is not set
# CONFIG_MTD_BLKMTD is not set
# Disk-On-Chip Device Drivers
# CONFIG_MTD_DOC1000 is not set
# CONFIG_MTD_DOC2000 is not set
# CONFIG_MTD_DOC2001 is not set
# CONFIG_MTD_DOCPROBE is not set
# NAND Flash Device Drivers
# CONFIG_MTD_NAND is not set
<deleted to end>
previous message, for reference:
I find that qry_present is failing on MVME5100
target board: Motorola MVME5100, CPU=MPC750
FLASH = 4x AMD29D323D, is CFI.
kernel: 2.4.2 (Hard Hat Linux 2.0)
MTD: CVS download of about Tuesday (10/30/01)
I do not see how to "make it" do cfi_cmdset_0002 (amdstd CFI) stuff.
It goes through gen_probe, and since it didn't correctly put chips into CFI
query mode, the qry_present fails.
It appears like the command to enter CFI Query mode not working; subsequent
cfi_reads return "normal" flash data, I think. So qry_present returns 1.
I say it looks like normal FLASH contents because I see the stuff cfi_read
returns when I use PPC_BUG6> m 0xF4000000 and scroll on down to ...80 which
is 0x10 * osf.
I am likely missing something basic. Like incorrect xconfig settings!
Enclosed is .config.
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