Dfu transfer uses a buffer before writing data to the
raw storage device. Make the size (in bytes) of this buffer
configurable.
Signed-off-by: Heiko Schocher <h...@denx.de>
Cc: Pantelis Antoniou <pa...@antoniou-consulting.com>
Cc: Tom Rini <tr...@ti.com>
Cc: Lukasz Majewski <l.majew...@samsung.com>
Cc: Kyungmin Park <kyungmin.p...@samsung.com>
Cc: Marek Vasut <ma...@denx.de>
---
README | 5 +++++
drivers/dfu/dfu.c | 2 +-
include/dfu.h | 4 +++-
3 Dateien geändert, 9 Zeilen hinzugefügt(+), 2 Zeilen entfernt(-)
diff --git a/README b/README
index b1b3e17..8550f34 100644
--- a/README
+++ b/README
@@ -1360,6 +1360,11 @@ The following options need to be configured:
CONFIG_DFU_NAND
This enables support for exposing NAND devices via DFU.
+ CONFIG_SYS_DFU_DATA_BUF_SIZE
+ Dfu transfer uses a buffer before writing data to the
+ raw storage device. Make the size (in bytes) of this buffer
+ configurable.
+
CONFIG_SYS_DFU_MAX_FILE_SIZE
When updating files rather than the raw storage device,
we use a static buffer to copy the file into and then write
diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c
index 6af6890..fe3a36e 100644
--- a/drivers/dfu/dfu.c
+++ b/drivers/dfu/dfu.c
@@ -42,7 +42,7 @@ static int dfu_find_alt_num(const char *s)
}
static unsigned char __aligned(CONFIG_SYS_CACHELINE_SIZE)
- dfu_buf[DFU_DATA_BUF_SIZE];
+ dfu_buf[CONFIG_SYS_DFU_DATA_BUF_SIZE];
static int dfu_write_buffer_drain(struct dfu_entity *dfu)
{
diff --git a/include/dfu.h b/include/dfu.h
index a107f4b..124653c 100644
--- a/include/dfu.h
+++ b/include/dfu.h
@@ -68,7 +68,9 @@ static inline unsigned int get_mmc_blk_size(int dev)
#define DFU_NAME_SIZE 32
#define DFU_CMD_BUF_SIZE 128
-#define DFU_DATA_BUF_SIZE (1024*1024*8) /* 8 MiB */
+#ifndef CONFIG_SYS_DFU_DATA_BUF_SIZE
+#define CONFIG_SYS_DFU_DATA_BUF_SIZE (1024*1024*8) /* 8 MiB */
+#endif
#ifndef CONFIG_SYS_DFU_MAX_FILE_SIZE
#define CONFIG_SYS_DFU_MAX_FILE_SIZE (4 << 20) /* 4 MiB */
#endif
--
1.7.11.7
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