The Kernel has mtd_read, mtd_write, mtd_erase and mtd_block_markbad.
Add these functions to barebox aswell to make future mtd synchronizations
with the kernel easier.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
drivers/mtd/core.c | 49 ++++++++++++++++++++++++++++++++++++++---------
include/linux/mtd/mtd.h | 7 +++++++
2 files changed, 47 insertions(+), 9 deletions(-)
diff --git a/drivers/mtd/core.c b/drivers/mtd/core.c
index 40c522f..47c0226 100644
--- a/drivers/mtd/core.c
+++ b/drivers/mtd/core.c
@@ -30,15 +30,6 @@
static LIST_HEAD(mtd_register_hooks);
-int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs)
-{
- if (!mtd->block_isbad)
- return 0;
- if (ofs < 0 || ofs > mtd->size)
- return -EINVAL;
- return mtd->block_isbad(mtd, ofs);
-}
-
static ssize_t mtd_op_read(struct cdev *cdev, void* buf, size_t count,
loff_t _offset, ulong flags)
{
@@ -170,6 +161,46 @@ int mtd_ioctl(struct cdev *cdev, int request, void *buf)
return ret;
}
+int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs)
+{
+ if (!mtd->block_isbad)
+ return 0;
+
+ if (ofs < 0 || ofs > mtd->size)
+ return -EINVAL;
+
+ return mtd->block_isbad(mtd, ofs);
+}
+
+int mtd_block_markbad(struct mtd_info *mtd, loff_t ofs)
+{
+ int ret;
+
+ if (mtd->block_markbad)
+ ret = mtd->block_markbad(mtd, ofs);
+ else
+ ret = -ENOSYS;
+
+ return ret;
+}
+
+int mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
+ u_char *buf)
+{
+ return mtd->read(mtd, from, len, retlen, buf);
+}
+
+int mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
+ const u_char *buf)
+{
+ return mtd->write(mtd, to, len, retlen, buf);
+}
+
+int mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
+{
+ return mtd->erase(mtd, instr);
+}
+
static struct file_operations mtd_ops = {
.read = mtd_op_read,
#ifdef CONFIG_MTD_WRITE
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index cb8b3bc..c1760de 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -207,6 +207,12 @@ struct mtd_info {
char *size_str;
};
+int mtd_erase(struct mtd_info *mtd, struct erase_info *instr);
+int mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
+ u_char *buf);
+int mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
+ const u_char *buf);
+
static inline uint32_t mtd_div_by_eb(uint64_t sz, struct mtd_info *mtd)
{
do_div(sz, mtd->erasesize);
@@ -252,6 +258,7 @@ static inline void mtd_erase_callback(struct erase_info *instr)
#endif
int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs);
+int mtd_block_markbad(struct mtd_info *mtd, loff_t ofs);
/*
* Debugging macro and defines
--
1.7.10.4
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