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(parent: 813bea9) | patch
IDE: fix bug in reset sequence
authorMartin Krause <martin.krause@tqs.de>
Thu, 3 Apr 2008 11:37:56 +0000 (13:37 +0200)
committerWolfgang Denk <wd@denx.de>
Thu, 17 Apr 2008 21:26:48 +0000 (14:26 -0700)
commite175eacc87c3a9e4dad0799fee0e95732520afc7
tree20c07e83a61de971748e0cb29c91b3a77fbdd282tree | snapshot
parent813bea96a960916c72b4a3a7df840151529c26cecommit | diff
IDE: fix bug in reset sequence

According to the ata (ata5) specification the RESET- signal
shall be asserted for at least 25 us. Without this patch,
the RESET- signal is asserted on some boards for only < 1 us
(e. g. on the TQM5200). This patch adds a general delay of
25 us to the RESET- signal.

Without this patch a Platinum 4 GiB CF card is not recognised
properly on boards with a TQM5200 (STK52xx, TB5200).

Signed-off-by: Martin Krause <martin.krause@tqs.de>
common/cmd_ide.c diff | blob | history
Cloned from git://git.denx.de/u-boot.git