From 208a08f7cc2a8932ed76162d9844f9ae7d7fc015 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Fri, 24 Mar 2006 03:18:21 -0800 Subject: [PATCH] ide: Allow IDE interface to specify its not capable of 32-bit operations In some embedded systems the IDE hardware interface may only support 16-bit or smaller accesses. Allow the interface to specify if this is the case and don't allow the drive or user to override the setting. Signed-off-by: Kumar Gala Acked-by: Bartlomiej Zolnierkiewicz Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/ide/ide-disk.c | 2 -- drivers/ide/ide-probe.c | 9 +++++++++ 2 files changed, 9 insertions(+), 2 deletions(-) (limited to 'drivers/ide') diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c index e238b7da824b..ccf528d733bf 100644 --- a/drivers/ide/ide-disk.c +++ b/drivers/ide/ide-disk.c @@ -978,8 +978,6 @@ static void idedisk_setup (ide_drive_t *drive) ide_dma_verbose(drive); printk("\n"); - drive->no_io_32bit = id->dword_io ? 1 : 0; - /* write cache enabled? */ if ((id->csfo & 1) || (id->cfs_enable_1 & (1 << 5))) drive->wcache = 1; diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 427d1c204174..1b7b4c531bc2 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -858,6 +858,15 @@ static void probe_hwif(ide_hwif_t *hwif) } } } + + for (unit = 0; unit < MAX_DRIVES; ++unit) { + ide_drive_t *drive = &hwif->drives[unit]; + + if (hwif->no_io_32bit) + drive->no_io_32bit = 1; + else + drive->no_io_32bit = drive->id->dword_io ? 1 : 0; + } } static int hwif_init(ide_hwif_t *hwif); -- cgit v1.2.2