This patch adds macros for following parameters of ELM Hardware engine - ELM_MAX_CHANNELS: ELM can process 8 data streams simultaneously - ELM_MAX_ERRORS: ELM can detect upto 16 ECC error when using BCH16 scheme
Signed-off-by: Pekon Gupta pekon@ti.com Reviewed-by: Stefan Roese sr@denx.de --- include/linux/mtd/omap_elm.h | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/include/linux/mtd/omap_elm.h b/include/linux/mtd/omap_elm.h index a6e9591..b8096b0 100644 --- a/include/linux/mtd/omap_elm.h +++ b/include/linux/mtd/omap_elm.h @@ -24,6 +24,9 @@ #define ELM_LOCATION_STATUS_ECC_CORRECTABLE_MASK (0x100) #define ELM_LOCATION_STATUS_ECC_NB_ERRORS_MASK (0x1F)
+#define ELM_MAX_CHANNELS 8 +#define ELM_MAX_ERROR_COUNT 16 + #ifndef __ASSEMBLY__
enum bch_level { @@ -43,7 +46,7 @@ struct syndrome { struct location { u32 location_status; /* 0x800 */ u8 res1[124]; /* 0x804 */ - u32 error_location_x[16]; /* 0x880.... */ + u32 error_location_x[ELM_MAX_ERROR_COUNT]; /* 0x880, 0x980, .. */ u8 res2[64]; /* 0x8c0 */ };
@@ -63,9 +66,9 @@ struct elm { u8 res2[92]; /* 0x024 */ u32 page_ctrl; /* 0x080 */ u8 res3[892]; /* 0x084 */ - struct syndrome syndrome_fragments[8]; /* 0x400 */ + struct syndrome syndrome_fragments[ELM_MAX_CHANNELS]; /* 0x400,0x420 */ u8 res4[512]; /* 0x600 */ - struct location error_location[8]; /* 0x800 */ + struct location error_location[ELM_MAX_CHANNELS]; /* 0x800,0x900 ... */ };
int elm_check_error(u8 *syndrome, enum bch_level bch_type, u32 *error_count,