mtd: nand: omap_elm: use macros for register definitions

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>

mtd: nand: omap_elm: use macros for register definitions
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>
pekon gupta · Tom Rini
1 parent 41bbe4dd49
Showing 1 changed file with 6 additions and 3 deletions Side-by-side Diff
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 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 @@
 	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,
...	...	@@ -24,6 +24,9 @@
24	24	#define ELM_LOCATION_STATUS_ECC_CORRECTABLE_MASK (0x100)
25	25	#define ELM_LOCATION_STATUS_ECC_NB_ERRORS_MASK (0x1F)
26	26
	27	+#define ELM_MAX_CHANNELS 8
	28	+#define ELM_MAX_ERROR_COUNT 16
	29	+
27	30	#ifndef __ASSEMBLY__
28	31
29	32	enum bch_level {
...	...	@@ -43,7 +46,7 @@
43	46	struct location {
44	47	u32 location_status; /* 0x800 */
45	48	u8 res1[124]; /* 0x804 */
46		- u32 error_location_x[16]; /* 0x880.... */
	49	+ u32 error_location_x[ELM_MAX_ERROR_COUNT]; /* 0x880, 0x980, .. */
47	50	u8 res2[64]; /* 0x8c0 */
48	51	};
49	52
50	53
...	...	@@ -63,9 +66,9 @@
63	66	u8 res2[92]; /* 0x024 */
64	67	u32 page_ctrl; /* 0x080 */
65	68	u8 res3[892]; /* 0x084 */
66		- struct syndrome syndrome_fragments[8]; /* 0x400 */
	69	+ struct syndrome syndrome_fragments[ELM_MAX_CHANNELS]; /* 0x400,0x420 */
67	70	u8 res4[512]; /* 0x600 */
68		- struct location error_location[8]; /* 0x800 */
	71	+ struct location error_location[ELM_MAX_CHANNELS]; /* 0x800,0x900 ... */
69	72	};
70	73
71	74	int elm_check_error(u8 syndrome, enum bch_level bch_type, u32 error_count,