[PATCH 2/2] ata: pata_octeon_cf: Use correct byte order for DMA in when built little-endian.

From: David Daney
Date: Fri Aug 17 2012 - 19:56:02 EST


From: David Daney <david.daney@xxxxxxxxxx>

We need to set the 'endian' bit in this case.

Signed-off-by: David Daney <david.daney@xxxxxxxxxx>
---
drivers/ata/pata_octeon_cf.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/ata/pata_octeon_cf.c b/drivers/ata/pata_octeon_cf.c
index 652d035..4e1194b 100644
--- a/drivers/ata/pata_octeon_cf.c
+++ b/drivers/ata/pata_octeon_cf.c
@@ -20,6 +20,7 @@
#include <linux/platform_device.h>
#include <scsi/scsi_host.h>

+#include <asm/byteorder.h>
#include <asm/octeon/octeon.h>

/*
@@ -589,6 +590,9 @@ static void octeon_cf_dma_start(struct ata_queued_cmd *qc)

/* Set the direction of the DMA */
mio_boot_dma_cfg.u64 = 0;
+#ifdef __LITTLE_ENDIAN
+ mio_boot_dma_cfg.s.endian = 1;
+#endif
mio_boot_dma_cfg.s.en = 1;
mio_boot_dma_cfg.s.rw = ((qc->tf.flags & ATA_TFLAG_WRITE) != 0);

--
1.7.11.2

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