diff options
| author | Heiko Schocher <hs@denx.de> | 2009-09-23 07:56:08 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2009-09-25 01:22:13 +0200 |
| commit | 3887c3fbdbbe6bbb4df60ed415c8e1ab9fe56b5e (patch) | |
| tree | 45036f888029797df3058eb7c99c1fa2f6b22632 /README | |
| parent | 7f625fc6d3ba8f890e843ac01717804c2462ed53 (diff) | |
| download | u-boot-3887c3fbdbbe6bbb4df60ed415c8e1ab9fe56b5e.tar.gz | |
mucmc52, uc101: delete ata@3a00 node, if no CF card is detected
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>
Diffstat (limited to 'README')
| -rw-r--r-- | README | 9 |
1 files changed, 9 insertions, 0 deletions
@@ -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 |