mtd: nand: mxs: Replace magic number for bits per ECC level with macro

Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Reviewed-by: Marek Vasut <marex@denx.de>

diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c
index fc5cf58..9c144a2 100644 (file)
--- a/drivers/mtd/nand/mxs_nand.c
+++ b/drivers/mtd/nand/mxs_nand.c
@@ -36,7 +36,7 @@
 #define        MXS_NAND_CHUNK_DATA_CHUNK_SIZE_SHIFT    0
 #endif
 #define        MXS_NAND_METADATA_SIZE                  10
-
+#define        MXS_NAND_BITS_PER_ECC_LEVEL             13
 #define        MXS_NAND_COMMAND_BUFFER_SIZE            32
 
 #define        MXS_NAND_BCH_TIMEOUT                    10000
@@ -135,7 +135,7 @@ static uint32_t mxs_nand_ecc_chunk_cnt(uint32_t page_data_size)
 
 static uint32_t mxs_nand_ecc_size_in_bits(uint32_t ecc_strength)
 {
-       return ecc_strength * 13;
+       return ecc_strength * MXS_NAND_BITS_PER_ECC_LEVEL;
 }
 
 static uint32_t mxs_nand_aux_status_offset(void)
@@ -157,7 +157,8 @@ static inline uint32_t mxs_nand_get_ecc_strength(uint32_t page_data_size,
         *              (page oob size - meta data size) * (bits per byte)
         */
        ecc_strength = ((page_oob_size - MXS_NAND_METADATA_SIZE) * 8)
-                       / (13 * mxs_nand_ecc_chunk_cnt(page_data_size));
+                       / (MXS_NAND_BITS_PER_ECC_LEVEL *
+                               mxs_nand_ecc_chunk_cnt(page_data_size));
 
        return round_down(ecc_strength, 2);
 }

diff --git a/tools/mxsboot.c b/tools/mxsboot.c
index 6d48cfb..08219b3 100644 (file)
--- a/tools/mxsboot.c
+++ b/tools/mxsboot.c
@@ -48,6 +48,7 @@ static uint32_t sd_sector = 2048;
 #define        MXS_NAND_DMA_DESCRIPTOR_COUNT           4
 #define        MXS_NAND_CHUNK_DATA_CHUNK_SIZE          512
 #define        MXS_NAND_METADATA_SIZE                  10
+#define        MXS_NAND_BITS_PER_ECC_LEVEL             13
 #define        MXS_NAND_COMMAND_BUFFER_SIZE            32
 
 struct mx28_nand_fcb {
@@ -127,7 +128,7 @@ struct mx28_sd_config_block {
 
 static inline uint32_t mx28_nand_ecc_size_in_bits(uint32_t ecc_strength)
 {
-       return ecc_strength * 13;
+       return ecc_strength * MXS_NAND_BITS_PER_ECC_LEVEL;
 }
 
 static inline uint32_t mx28_nand_get_ecc_strength(uint32_t page_data_size,