[U-Boot] [PATCH v5 2/3] mtd, nand: move common functions from cmd_nand.c to common place

Heiko Schocher hs at denx.de
Mon Apr 20 07:47:32 CEST 2015


move common functions from cmd_nand.c (for calculating offset
and size from cmdline paramter) to common place, so they could
used from other commands which use mtd partitions.

For onenand the arg_off_size() is left in common/cmd_onenand.c.
It should use now the common arg_off() function, but as I could
not test onenand I let it there ...

Signed-off-by: Heiko Schocher <hs at denx.de>

---

Changes in v2:
- none
Series-changes: 3
- add comments from scott wood:
  - align MTD_DEV_TYPE_NAND correct
  - remove unnecessary inline
  - rework "jffs2 header" problem later
- rebase with d6c1ffc7d23f4fe4ae8c91101861055b8e1501b6
Series-changes: 4
- rebased against 385a08a60f042061b004642d6b9bb6cfb794ad5a
Series-changes: 5
- add comment from Scott Wood:
  keep the continuation line aligned with the arguments

 common/cmd_nand.c       | 142 +++++++++---------------------------------------
 common/cmd_onenand.c    |  19 ++-----
 drivers/mtd/Makefile    |   4 +-
 drivers/mtd/mtd_uboot.c | 114 ++++++++++++++++++++++++++++++++++++++
 include/linux/mtd/mtd.h |   7 +++
 5 files changed, 156 insertions(+), 130 deletions(-)
 create mode 100644 drivers/mtd/mtd_uboot.c

diff --git a/common/cmd_nand.c b/common/cmd_nand.c
index 17fa7ea..184335d 100644
--- a/common/cmd_nand.c
+++ b/common/cmd_nand.c
@@ -133,115 +133,6 @@ static int set_dev(int dev)
 	return 0;
 }
 
-static inline int str2off(const char *p, loff_t *num)
-{
-	char *endptr;
-
-	*num = simple_strtoull(p, &endptr, 16);
-	return *p != '\0' && *endptr == '\0';
-}
-
-static inline int str2long(const char *p, ulong *num)
-{
-	char *endptr;
-
-	*num = simple_strtoul(p, &endptr, 16);
-	return *p != '\0' && *endptr == '\0';
-}
-
-static int get_part(const char *partname, int *idx, loff_t *off, loff_t *size,
-		loff_t *maxsize)
-{
-#ifdef CONFIG_CMD_MTDPARTS
-	struct mtd_device *dev;
-	struct part_info *part;
-	u8 pnum;
-	int ret;
-
-	ret = mtdparts_init();
-	if (ret)
-		return ret;
-
-	ret = find_dev_and_part(partname, &dev, &pnum, &part);
-	if (ret)
-		return ret;
-
-	if (dev->id->type != MTD_DEV_TYPE_NAND) {
-		puts("not a NAND device\n");
-		return -1;
-	}
-
-	*off = part->offset;
-	*size = part->size;
-	*maxsize = part->size;
-	*idx = dev->id->num;
-
-	ret = set_dev(*idx);
-	if (ret)
-		return ret;
-
-	return 0;
-#else
-	puts("offset is not a number\n");
-	return -1;
-#endif
-}
-
-static int arg_off(const char *arg, int *idx, loff_t *off, loff_t *size,
-		loff_t *maxsize)
-{
-	if (!str2off(arg, off))
-		return get_part(arg, idx, off, size, maxsize);
-
-	if (*off >= nand_info[*idx].size) {
-		puts("Offset exceeds device limit\n");
-		return -1;
-	}
-
-	*maxsize = nand_info[*idx].size - *off;
-	*size = *maxsize;
-	return 0;
-}
-
-static int arg_off_size(int argc, char *const argv[], int *idx,
-			loff_t *off, loff_t *size, loff_t *maxsize)
-{
-	int ret;
-
-	if (argc == 0) {
-		*off = 0;
-		*size = nand_info[*idx].size;
-		*maxsize = *size;
-		goto print;
-	}
-
-	ret = arg_off(argv[0], idx, off, size, maxsize);
-	if (ret)
-		return ret;
-
-	if (argc == 1)
-		goto print;
-
-	if (!str2off(argv[1], size)) {
-		printf("'%s' is not a number\n", argv[1]);
-		return -1;
-	}
-
-	if (*size > *maxsize) {
-		puts("Size exceeds partition or device limit\n");
-		return -1;
-	}
-
-print:
-	printf("device %d ", *idx);
-	if (*size == nand_info[*idx].size)
-		puts("whole chip\n");
-	else
-		printf("offset 0x%llx, size 0x%llx\n",
-		       (unsigned long long)*off, (unsigned long long)*size);
-	return 0;
-}
-
 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
 static void print_status(ulong start, ulong end, ulong erasesize, int status)
 {
@@ -322,7 +213,12 @@ int do_nand_env_oob(cmd_tbl_t *cmdtp, int argc, char *const argv[])
 			goto usage;
 
 		/* We don't care about size, or maxsize. */
-		if (arg_off(argv[2], &idx, &addr, &maxsize, &maxsize)) {
+		if (arg_off(argv[2], &idx, &addr, &maxsize, &maxsize,
+			    MTD_DEV_TYPE_NAND, nand_info[idx].size)) {
+				puts("Offset or partition name expected\n");
+				return 1;
+		}
+		if (set_dev(idx)) {
 			puts("Offset or partition name expected\n");
 			return 1;
 		}
@@ -595,7 +491,11 @@ static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		printf("\nNAND %s: ", cmd);
 		/* skip first two or three arguments, look for offset and size */
 		if (arg_off_size(argc - o, argv + o, &dev, &off, &size,
-				 &maxsize) != 0)
+				 &maxsize, MTD_DEV_TYPE_NAND,
+				 nand_info[dev].size) != 0)
+			return 1;
+
+		if (set_dev(dev))
 			return 1;
 
 		nand = &nand_info[dev];
@@ -655,7 +555,11 @@ static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		if (s && !strcmp(s, ".raw")) {
 			raw = 1;
 
-			if (arg_off(argv[3], &dev, &off, &size, &maxsize))
+			if (arg_off(argv[3], &dev, &off, &size, &maxsize,
+				    MTD_DEV_TYPE_NAND, nand_info[dev].size))
+				return 1;
+
+			if (set_dev(dev))
 				return 1;
 
 			nand = &nand_info[dev];
@@ -672,8 +576,12 @@ static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 
 			rwsize = pagecount * (nand->writesize + nand->oobsize);
 		} else {
-			if (arg_off_size(argc - 3, argv + 3, &dev,
-						&off, &size, &maxsize) != 0)
+			if (arg_off_size(argc - 3, argv + 3, &dev, &off, &size,
+					 &maxsize, MTD_DEV_TYPE_NAND,
+					 nand_info[dev].size) != 0)
+				return 1;
+
+			if (set_dev(dev))
 				return 1;
 
 			/* size is unspecified */
@@ -812,7 +720,11 @@ static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 			allexcept = 1;
 
 		if (arg_off_size(argc - 2, argv + 2, &dev, &off, &size,
-				 &maxsize) < 0)
+				 &maxsize, MTD_DEV_TYPE_NAND,
+				 nand_info[dev].size) < 0)
+			return 1;
+
+		if (set_dev(dev))
 			return 1;
 
 		if (!nand_unlock(&nand_info[dev], off, size, allexcept)) {
diff --git a/common/cmd_onenand.c b/common/cmd_onenand.c
index 06cc140..feab01a 100644
--- a/common/cmd_onenand.c
+++ b/common/cmd_onenand.c
@@ -24,15 +24,8 @@ static struct mtd_info *mtd;
 static loff_t next_ofs;
 static loff_t skip_ofs;
 
-static inline int str2long(char *p, ulong *num)
-{
-	char *endptr;
-
-	*num = simple_strtoul(p, &endptr, 16);
-	return (*p != '\0' && *endptr == '\0') ? 1 : 0;
-}
-
-static int arg_off_size(int argc, char * const argv[], ulong *off, size_t *size)
+static int arg_off_size_onenand(int argc, char * const argv[], ulong *off,
+				size_t *size)
 {
 	if (argc >= 1) {
 		if (!(str2long(argv[0], off))) {
@@ -399,7 +392,7 @@ static int do_onenand_read(cmd_tbl_t * cmdtp, int flag, int argc, char * const a
 	addr = (ulong)simple_strtoul(argv[1], NULL, 16);
 
 	printf("\nOneNAND read: ");
-	if (arg_off_size(argc - 2, argv + 2, &ofs, &len) != 0)
+	if (arg_off_size_onenand(argc - 2, argv + 2, &ofs, &len) != 0)
 		return 1;
 
 	ret = onenand_block_read(ofs, len, &retlen, (u8 *)addr, oob);
@@ -425,7 +418,7 @@ static int do_onenand_write(cmd_tbl_t * cmdtp, int flag, int argc, char * const
 	addr = (ulong)simple_strtoul(argv[1], NULL, 16);
 
 	printf("\nOneNAND write: ");
-	if (arg_off_size(argc - 2, argv + 2, &ofs, &len) != 0)
+	if (arg_off_size_onenand(argc - 2, argv + 2, &ofs, &len) != 0)
 		return 1;
 
 	ret = onenand_block_write(ofs, len, &retlen, (u8 *)addr, withoob);
@@ -461,7 +454,7 @@ static int do_onenand_erase(cmd_tbl_t * cmdtp, int flag, int argc, char * const
 	printf("\nOneNAND erase: ");
 
 	/* skip first two or three arguments, look for offset and size */
-	if (arg_off_size(argc, argv, &ofs, &len) != 0)
+	if (arg_off_size_onenand(argc, argv, &ofs, &len) != 0)
 		return 1;
 
 	ret = onenand_block_erase(ofs, len, force);
@@ -486,7 +479,7 @@ static int do_onenand_test(cmd_tbl_t * cmdtp, int flag, int argc, char * const a
 	printf("\nOneNAND test: ");
 
 	/* skip first two or three arguments, look for offset and size */
-	if (arg_off_size(argc - 1, argv + 1, &ofs, &len) != 0)
+	if (arg_off_size_onenand(argc - 1, argv + 1, &ofs, &len) != 0)
 		return 1;
 
 	ret = onenand_block_test(ofs, len);
diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile
index 5467a951..a623f4c 100644
--- a/drivers/mtd/Makefile
+++ b/drivers/mtd/Makefile
@@ -5,8 +5,8 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-ifneq (,$(findstring y,$(CONFIG_MTD_DEVICE)$(CONFIG_CMD_NAND)$(CONFIG_CMD_ONENAND)))
-obj-y += mtdcore.o
+ifneq (,$(findstring y,$(CONFIG_MTD_DEVICE)$(CONFIG_CMD_NAND)$(CONFIG_CMD_ONENAND)$(CONFIG_CMD_SF)))
+obj-y += mtdcore.o mtd_uboot.o
 endif
 obj-$(CONFIG_MTD_PARTITIONS) += mtdpart.o
 obj-$(CONFIG_MTD_CONCAT) += mtdconcat.o
diff --git a/drivers/mtd/mtd_uboot.c b/drivers/mtd/mtd_uboot.c
new file mode 100644
index 0000000..a70d40a
--- /dev/null
+++ b/drivers/mtd/mtd_uboot.c
@@ -0,0 +1,114 @@
+/*
+ * (C) Copyright 2014
+ * Heiko Schocher, DENX Software Engineering, hs at denx.de.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+#include <linux/mtd/mtd.h>
+#include <jffs2/jffs2.h>
+
+int str2off(const char *p, loff_t *num)
+{
+	char *endptr;
+
+	*num = simple_strtoull(p, &endptr, 16);
+	return *p != '\0' && *endptr == '\0';
+}
+
+int str2long(const char *p, ulong *num)
+{
+	char *endptr;
+
+	*num = simple_strtoul(p, &endptr, 16);
+	return *p != '\0' && *endptr == '\0';
+}
+
+static int get_part(const char *partname, int *idx, loff_t *off, loff_t *size,
+		loff_t *maxsize, int devtype)
+{
+#ifdef CONFIG_CMD_MTDPARTS
+	struct mtd_device *dev;
+	struct part_info *part;
+	u8 pnum;
+	int ret;
+
+	ret = mtdparts_init();
+	if (ret)
+		return ret;
+
+	ret = find_dev_and_part(partname, &dev, &pnum, &part);
+	if (ret)
+		return ret;
+
+	if (dev->id->type != devtype) {
+		printf("not same typ %d != %d\n", dev->id->type, devtype);
+		return -1;
+	}
+
+	*off = part->offset;
+	*size = part->size;
+	*maxsize = part->size;
+	*idx = dev->id->num;
+
+	return 0;
+#else
+	puts("offset is not a number\n");
+	return -1;
+#endif
+}
+
+int arg_off(const char *arg, int *idx, loff_t *off, loff_t *size,
+		loff_t *maxsize, int devtype, int chipsize)
+{
+	if (!str2off(arg, off))
+		return get_part(arg, idx, off, size, maxsize, devtype);
+
+	if (*off >= chipsize) {
+		puts("Offset exceeds device limit\n");
+		return -1;
+	}
+
+	*maxsize = chipsize - *off;
+	*size = *maxsize;
+	return 0;
+}
+
+int arg_off_size(int argc, char *const argv[], int *idx, loff_t *off,
+		 loff_t *size, loff_t *maxsize, int devtype, int chipsize)
+{
+	int ret;
+
+	if (argc == 0) {
+		*off = 0;
+		*size = chipsize;
+		*maxsize = *size;
+		goto print;
+	}
+
+	ret = arg_off(argv[0], idx, off, size, maxsize, devtype, chipsize);
+	if (ret)
+		return ret;
+
+	if (argc == 1)
+		goto print;
+
+	if (!str2off(argv[1], size)) {
+		printf("'%s' is not a number\n", argv[1]);
+		return -1;
+	}
+
+	if (*size > *maxsize) {
+		puts("Size exceeds partition or device limit\n");
+		return -1;
+	}
+
+print:
+	printf("device %d ", *idx);
+	if (*size == chipsize)
+		puts("whole chip\n");
+	else
+		printf("offset 0x%llx, size 0x%llx\n",
+		       (unsigned long long)*off, (unsigned long long)*size);
+	return 0;
+}
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 8666413..2861af5 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -482,5 +482,12 @@ int add_mtd_device(struct mtd_info *mtd);
 int del_mtd_device(struct mtd_info *mtd);
 int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int);
 int del_mtd_partitions(struct mtd_info *);
+
+int str2off(const char *p, loff_t *num);
+int str2long(const char *p, ulong *num);
+int arg_off(const char *arg, int *idx, loff_t *off, loff_t *size,
+		loff_t *maxsize, int devtype, int chipsize);
+int arg_off_size(int argc, char *const argv[], int *idx, loff_t *off,
+		 loff_t *size, loff_t *maxsize, int devtype, int chipsize);
 #endif
 #endif /* __MTD_MTD_H__ */
-- 
2.1.0



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