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| author | Macpaul Lin <macpaul@andestech.com> | 2011-04-11 20:45:32 +0000 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2011-04-30 21:04:25 +0200 |
| commit | 0abddf82d54c704cf066524235b6414333e8d087 (patch) | |
| tree | 3ae31f30d1d61056be409afe1ea98a21646262ac /README | |
| parent | dea6386b715827e080a9fa6e6d706f2bdf8a998e (diff) | |
| download | u-boot-imx-0abddf82d54c704cf066524235b6414333e8d087.zip u-boot-imx-0abddf82d54c704cf066524235b6414333e8d087.tar.gz u-boot-imx-0abddf82d54c704cf066524235b6414333e8d087.tar.bz2 | |
cmd_ide: enhance new feature "CONFIG_IDE_AHB"
Although most IDE controller is designed to be connected to PCI bridge,
there are still some IDE controller support AHB interface for SoC design.
The driver implementation of these IDE-AHB controllers differ from other
IDE-PCI controller, some additional registers and commands access is required
during CMD/DATA I/O. Hence a configuration "CONFIG_IDE_AHB" in cmd_ide.c is
required to be defined to support these kinds of SoC controllers. Such as
Faraday's FTIDE020 series and Global Unichip's UINF-0301.
Signed-off-by: Macpaul Lin <macpaul@andestech.com>
Diffstat (limited to 'README')
| -rw-r--r-- | README | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -2751,6 +2751,14 @@ Low Level (hardware related) configuration options: source code. It is used to make hardware dependant initializations. +- CONFIG_IDE_AHB: + Most IDE controllers were designed to be connected with PCI + interface. Only few of them were designed for AHB interface. + When software is doing ATA command and data transfer to + IDE devices through IDE-AHB controller, some additional + registers accessing to these kind of IDE-AHB controller + is requierd. + - CONFIG_SYS_IMMR: Physical address of the Internal Memory. DO NOT CHANGE unless you know exactly what you're doing! (11-4) [MPC8xx/82xx systems only] |