On Friday 17 October 2008, Ralf Baechle wrote: > On Fri, Oct 17, 2008 at 11:08:25PM +0900, Atsushi Nemoto wrote: > > > This is the driver for the Toshiba TX4939 SoC ATA controller. > > > > This controller has standard ATA taskfile registers and DMA > > command/status registers, but the register layout is swapped on big > > endian. There are some other endian issue and some special registers > > which requires many custom dma_ops/tp_ops routines and build_dmatable. > > > > Signed-off-by: Atsushi Nemoto <anemo@xxxxxxxxxxxxx> > > --- > > This patch is against current linux-mips tree. > > > > Changes since v3: > > * more consistent symbol naming > > * handle only DMA mode in set_dma_mode > > * rename tx4939ide_read_and_clear_dma_status to tx4939ide_clear_dma_status > > * use standard ide_read_sff_dma_status in LE mode > > * remove CS5530 workaround from tx4939ide_build_dmatable > > * use ide_host_alloc/ide_host_register instead of ide_host_alloc > > * fold tx4939ide_insw_swap into tx4939ide_input_data_swap > > * more informative printk > > * whitespace cleanups and spelling fixes > > > > drivers/ide/Kconfig | 6 + > > drivers/ide/mips/Makefile | 1 + > > drivers/ide/mips/tx4939ide.c | 755 ++++++++++++++++++++++++++++++++++++++++++ > > Btw, I don't think architecture specific subdirectories in subsystems are > generally usefull. Just as in this example this IDE controller happens > only to be in use on a particular MIPS-based SOC but there is nothing > really architecture specific in most such devices. I fully agree with you. I was going to remove arch/bus specific subdirs in .29 but since the change should be really straightforward and we're ahead of the merge schedule for .28 I think we may as well do it now... I'll prepare corresponding IDE git pull request next week. Thanks, Bart