mtd: nand: Clarify Kconfig entry for software Hamming ECC entries

The software Hamming ECC correction implementation is referred as
MTD_NAND_ECC which is too generic. Rename it
MTD_NAND_ECC_SW_HAMMING. Also rename MTD_NAND_ECC_SMC which is an
SMC quirk in the Hamming implementation as
MTD_NAND_ECC_SW_HAMMING_SMC.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

diff --git a/arch/arm/configs/nhk8815_defconfig b/arch/arm/configs/nhk8815_defconfig
index 5f4c6aa..e037398 100644 (file)
--- a/arch/arm/configs/nhk8815_defconfig
+++ b/arch/arm/configs/nhk8815_defconfig
@@ -53,7 +53,7 @@ CONFIG_MTD_BLOCK=y
 CONFIG_MTD_ONENAND=y
 CONFIG_MTD_ONENAND_VERIFY_WRITE=y
 CONFIG_MTD_ONENAND_GENERIC=y
-CONFIG_MTD_NAND_ECC_SMC=y
+CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC=y
 CONFIG_MTD_NAND=y
 CONFIG_MTD_NAND_FSMC=y
 CONFIG_BLK_DEV_LOOP=y

diff --git a/arch/mips/configs/generic/board-ni169445.config b/arch/mips/configs/generic/board-ni169445.config
index 01f6ab0..e68da2e 100644 (file)
--- a/arch/mips/configs/generic/board-ni169445.config
+++ b/arch/mips/configs/generic/board-ni169445.config
@@ -15,7 +15,7 @@ CONFIG_MTD=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CMDLINE_PARTS=y
 
-CONFIG_MTD_NAND_ECC=y
+CONFIG_MTD_NAND_ECC_SW_HAMMING=y
 CONFIG_MTD_NAND_ECC_SW_BCH=y
 CONFIG_MTD_NAND=y
 CONFIG_MTD_NAND_GPIO=y

diff --git a/arch/powerpc/configs/85xx/tqm8548_defconfig b/arch/powerpc/configs/85xx/tqm8548_defconfig
index 2697e4e..464ce19 100644 (file)
--- a/arch/powerpc/configs/85xx/tqm8548_defconfig
+++ b/arch/powerpc/configs/85xx/tqm8548_defconfig
@@ -35,7 +35,7 @@ CONFIG_MTD=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_AMDSTD=y
 CONFIG_MTD_PHYSMAP_OF=y
-CONFIG_MTD_NAND_ECC_SMC=y
+CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC=y
 CONFIG_MTD_NAND=y
 CONFIG_MTD_NAND_FSL_UPM=y
 CONFIG_BLK_DEV_LOOP=y

diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
index 79a8ff5..aa5a27f 100644 (file)
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -230,12 +230,11 @@ config SSFDC
          This enables read only access to SmartMedia formatted NAND
          flash. You can mount it with FAT file system.
 
-
 config SM_FTL
        tristate "SmartMedia/xD new translation layer"
        depends on BLOCK
        select MTD_BLKDEVS
-       select MTD_NAND_ECC
+       select MTD_NAND_ECC_SW_HAMMING
        help
          This enables EXPERIMENTAL R/W support for SmartMedia/xD
          FTL (Flash translation layer).

diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig
index 7a1bde4..b521e98 100644 (file)
--- a/drivers/mtd/nand/raw/Kconfig
+++ b/drivers/mtd/nand/raw/Kconfig
@@ -1,20 +1,19 @@
-config MTD_NAND_ECC
+config MTD_NAND_ECC_SW_HAMMING
        tristate
 
-config MTD_NAND_ECC_SMC
+config MTD_NAND_ECC_SW_HAMMING_SMC
        bool "NAND ECC Smart Media byte order"
-       depends on MTD_NAND_ECC
+       depends on MTD_NAND_ECC_SW_HAMMING
        default n
        help
          Software ECC according to the Smart Media Specification.
          The original Linux implementation had byte 0 and 1 swapped.
 
-
 menuconfig MTD_NAND
        tristate "Raw/Parallel NAND Device Support"
        depends on MTD
-       select MTD_NAND_ECC
        select MTD_NAND_CORE
+       select MTD_NAND_ECC_SW_HAMMING
        help
          This enables support for accessing all type of raw/parallel
          NAND flash devices. For further information see
@@ -132,7 +131,7 @@ config MTD_NAND_S3C2410_DEBUG
 config MTD_NAND_NDFC
        tristate "NDFC NanD Flash Controller"
        depends on 4xx
-       select MTD_NAND_ECC_SMC
+       select MTD_NAND_ECC_SW_HAMMING_SMC
        help
          NDFC Nand Flash Controllers are integrated in IBM/AMCC's 4xx SoCs
 

diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile
index 9749ff0..a022931 100644 (file)
--- a/drivers/mtd/nand/raw/Makefile
+++ b/drivers/mtd/nand/raw/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_MTD_NAND)                 += nand.o
-obj-$(CONFIG_MTD_NAND_ECC)             += nand_ecc.o
+obj-$(CONFIG_MTD_NAND_ECC_SW_HAMMING)  += nand_ecc.o
 obj-$(CONFIG_MTD_NAND_ECC_SW_BCH)      += nand_bch.o
 obj-$(CONFIG_MTD_SM_COMMON)            += sm_common.o
 

diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index 95fac92..fd7ce5b 100644 (file)
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -5081,7 +5081,7 @@ static int nand_set_ecc_soft_ops(struct nand_chip *chip)
                ecc->bytes = 3;
                ecc->strength = 1;
 
-               if (IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC))
+               if (IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC))
                        ecc->options |= NAND_ECC_SOFT_HAMMING_SM_ORDER;
 
                return 0;

diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index 89227b1..e0955a9 100644 (file)
--- a/drivers/mtd/sm_ftl.c
+++ b/drivers/mtd/sm_ftl.c
@@ -222,17 +222,17 @@ static int sm_correct_sector(uint8_t *buffer, struct sm_oob *oob)
        uint8_t ecc[3];
 
        __nand_calculate_ecc(buffer, SM_SMALL_PAGE, ecc,
-                            IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC));
+                            IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC));
        if (__nand_correct_data(buffer, ecc, oob->ecc1, SM_SMALL_PAGE,
-                               IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)) < 0)
+                               IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)) < 0)
                return -EIO;
 
        buffer += SM_SMALL_PAGE;
 
        __nand_calculate_ecc(buffer, SM_SMALL_PAGE, ecc,
-                            IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC));
+                            IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC));
        if (__nand_correct_data(buffer, ecc, oob->ecc2, SM_SMALL_PAGE,
-                               IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC)) < 0)
+                               IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC)) < 0)
                return -EIO;
        return 0;
 }
@@ -399,11 +399,11 @@ restart:
                if (ftl->smallpagenand) {
                        __nand_calculate_ecc(buf + boffset, SM_SMALL_PAGE,
                                        oob.ecc1,
-                                       IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC));
+                                       IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC));
 
                        __nand_calculate_ecc(buf + boffset + SM_SMALL_PAGE,
                                        SM_SMALL_PAGE, oob.ecc2,
-                                       IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC));
+                                       IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC));
                }
                if (!sm_write_sector(ftl, zone, block, boffset,
                                                        buf + boffset, &oob))

diff --git a/drivers/mtd/tests/mtd_nandecctest.c b/drivers/mtd/tests/mtd_nandecctest.c
index c71523e..0c0091f 100644 (file)
--- a/drivers/mtd/tests/mtd_nandecctest.c
+++ b/drivers/mtd/tests/mtd_nandecctest.c
@@ -122,9 +122,9 @@ static int no_bit_error_verify(void *error_data, void *error_ecc,
        int ret;
 
        __nand_calculate_ecc(error_data, size, calc_ecc,
-                            IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC));
+                            IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC));
        ret = __nand_correct_data(error_data, error_ecc, calc_ecc, size,
-                                 IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC));
+                                 IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC));
        if (ret == 0 && !memcmp(correct_data, error_data, size))
                return 0;
 
@@ -152,9 +152,9 @@ static int single_bit_error_correct(void *error_data, void *error_ecc,
        int ret;
 
        __nand_calculate_ecc(error_data, size, calc_ecc,
-                            IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC));
+                            IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC));
        ret = __nand_correct_data(error_data, error_ecc, calc_ecc, size,
-                                 IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC));
+                                 IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC));
        if (ret == 1 && !memcmp(correct_data, error_data, size))
                return 0;
 
@@ -189,9 +189,9 @@ static int double_bit_error_detect(void *error_data, void *error_ecc,
        int ret;
 
        __nand_calculate_ecc(error_data, size, calc_ecc,
-                            IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC));
+                            IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC));
        ret = __nand_correct_data(error_data, error_ecc, calc_ecc, size,
-                                 IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC));
+                                 IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC));
 
        return (ret == -EBADMSG) ? 0 : -EINVAL;
 }
@@ -266,7 +266,7 @@ static int nand_ecc_test_run(const size_t size)
 
        prandom_bytes(correct_data, size);
        __nand_calculate_ecc(correct_data, size, correct_ecc,
-                            IS_ENABLED(CONFIG_MTD_NAND_ECC_SMC));
+                            IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING_SMC));
 
        for (i = 0; i < ARRAY_SIZE(nand_ecc_test); i++) {
                nand_ecc_test[i].prepare(error_data, error_ecc,