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mucmc52, uc101: delete ata@3a00 node, if no CF card is detected

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U-Boot can detect if an IDE device is present or not.
If not, and this new config option is activated, U-Boot
removes the ATA node from the DTS before booting Linux,
so the Linux IDE driver does not probe the device and
crash. This is needed for buggy hardware (uc101) where
no pull down resistor is connected to the signal IDE5V_DD7.

Signed-off-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Heiko Schocher
2009-09-23 07:56:08 +02:00
committed by Wolfgang Denk
parent 7f625fc6d3
commit 3887c3fbdb
5 changed files with 41 additions and 0 deletions
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README
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@@ -388,6 +388,15 @@ The following options need to be configured:
This define fills in the correct boot CPU in the boot
param header, the default value is zero if undefined.
CONFIG_OF_IDE_FIXUP
U-Boot can detect if an IDE device is present or not.
If not, and this new config option is activated, U-Boot
removes the ATA node from the DTS before booting Linux,
so the Linux IDE driver does not probe the device and
crash. This is needed for buggy hardware (uc101) where
no pull down resistor is connected to the signal IDE5V_DD7.
- vxWorks boot parameters:
bootvx constructs a valid bootline using the following