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fsl_sata: Move the snoop bit to another place 

For P1022 SATA host controller, the data snoop bit of DW3 in PRDT
is moved to bit28.

Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Dave Liu 2010-04-12 14:23:35 +08:00 committed by Kumar Gala
parent e4773debb7
commit cd3abcfa2d
1 changed files with 6 additions and 2 deletions
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8
drivers/block/fsl_sata.h
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@ -243,8 +243,12 @@ typedef struct prd_entry {
/* ext_c_ddc
*/
#define PRD_ENTRY_EXT 0x80000000 /* extension flag or called indirect descriptor flag */
#define PRD_ENTRY_DATA_SNOOP 0x00400000 /* Snoop enable for all data associated with the PRD entry */
#define PRD_ENTRY_EXT 0x80000000 /* extension flag */
#ifdef CONFIG_FSL_SATA_V2
#define PRD_ENTRY_DATA_SNOOP 0x10000000 /* Data snoop enable */
#else
#define PRD_ENTRY_DATA_SNOOP 0x00400000 /* Data snoop enable */
#endif
#define PRD_ENTRY_LEN_MASK 0x003fffff /* Data word count */
#define PRD_ENTRY_MAX_XFER_SZ (PRD_ENTRY_LEN_MASK + 1)