diff options
Diffstat (limited to 'drivers/ide/ide-dma.c')
| -rw-r--r-- | drivers/ide/ide-dma.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index c15e7ee38..7caafab9b 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -90,6 +90,8 @@ #include <asm/io.h> #include <asm/irq.h> +#undef CONFIG_BLK_DEV_IDEDMA_TIMEOUT + extern char *ide_dmafunc_verbose(ide_dma_action_t dmafunc); #ifdef CONFIG_IDEDMA_NEW_DRIVE_LISTINGS @@ -265,6 +267,12 @@ int ide_build_dmatable (ide_drive_t *drive, ide_dma_action_t func) cur_addr = sg_dma_address(sg); cur_len = sg_dma_len(sg); + /* + * Fill in the dma table, without crossing any 64kB boundaries. + * Most hardware requires 16-bit alignment of all blocks, + * but the trm290 requires 32-bit alignment. + */ + while (cur_len) { if (++count >= PRD_ENTRIES) { printk("%s: DMA table too small\n", drive->name); @@ -515,9 +523,17 @@ int ide_dmaproc (ide_dma_action_t func, ide_drive_t *drive) return check_drive_lists(drive, (func == ide_dma_good_drive)); case ide_dma_verbose: return report_drive_dmaing(drive); + case ide_dma_timeout: +#ifdef CONFIG_BLK_DEV_IDEDMA_TIMEOUT + /* + * Have to issue an abort and requeue the request + * DMA engine got turned off by a goofy ASIC, and + * we have to clean up the mess, and here is as good + * as any. Do it globally for all chipsets. + */ +#endif /* CONFIG_BLK_DEV_IDEDMA_TIMEOUT */ case ide_dma_retune: case ide_dma_lostirq: - case ide_dma_timeout: printk("ide_dmaproc: chipset supported %s func only: %d\n", ide_dmafunc_verbose(func), func); return 1; default: |