For some time we have been using the run_command() with properly crafted
string. Such approach turned to be unreliable and error prone.
Switch to "native" mmc subsystem API would allow better type checking and
shall improve speed.
Also, it seems that this API is changing less often than u-boot commands.
The approach similar to env operations on the eMMC has been reused.
Change-Id: Idcd18465f58481bcbae9e266769fb9b9355852d2
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
#include <errno.h>
#include <div64.h>
#include <dfu.h>
#include <errno.h>
#include <div64.h>
#include <dfu.h>
static unsigned char __aligned(CONFIG_SYS_CACHELINE_SIZE)
dfu_file_buf[CONFIG_SYS_DFU_MAX_FILE_SIZE];
static unsigned char __aligned(CONFIG_SYS_CACHELINE_SIZE)
dfu_file_buf[CONFIG_SYS_DFU_MAX_FILE_SIZE];
static int mmc_block_op(enum dfu_op op, struct dfu_entity *dfu,
u64 offset, void *buf, long *len)
{
static int mmc_block_op(enum dfu_op op, struct dfu_entity *dfu,
u64 offset, void *buf, long *len)
{
- char cmd_buf[DFU_CMD_BUF_SIZE];
- u32 blk_start, blk_count;
+ struct mmc *mmc = find_mmc_device(dfu->dev_num);
+ u32 blk_start, blk_count, n = 0;
/*
* We must ensure that we work in lba_blk_size chunks, so ALIGN
/*
* We must ensure that we work in lba_blk_size chunks, so ALIGN
- sprintf(cmd_buf, "mmc %s %p %x %x",
- op == DFU_OP_READ ? "read" : "write",
- buf, blk_start, blk_count);
+ debug("%s: %s dev: %d start: %d cnt: %d buf: 0x%p\n", __func__,
+ op == DFU_OP_READ ? "MMC READ" : "MMC WRITE", dfu->dev_num,
+ blk_start, blk_count, buf);
+ switch (op) {
+ case DFU_OP_READ:
+ n = mmc->block_dev.block_read(dfu->dev_num, blk_start,
+ blk_count, buf);
+ break;
+ case DFU_OP_WRITE:
+ n = mmc->block_dev.block_write(dfu->dev_num, blk_start,
+ blk_count, buf);
+ break;
+ default:
+ error("Operation not supported\n");
+ }
- debug("%s: %s 0x%p\n", __func__, cmd_buf, cmd_buf);
- return run_command(cmd_buf, 0);
+ if (n != blk_count) {
+ error("MMC operation failed");
+ return -EIO;
+ }
+
+ return 0;
}
static int mmc_file_buffer(struct dfu_entity *dfu, void *buf, long *len)
}
static int mmc_file_buffer(struct dfu_entity *dfu, void *buf, long *len)