diff options
Diffstat (limited to 'drivers/mmc/core/sdio_ops.c')
| -rw-r--r-- | drivers/mmc/core/sdio_ops.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/mmc/core/sdio_ops.c b/drivers/mmc/core/sdio_ops.c index 4f2c7713947..98e20532452 100644 --- a/drivers/mmc/core/sdio_ops.c +++ b/drivers/mmc/core/sdio_ops.c @@ -88,7 +88,7 @@ int mmc_io_rw_direct(struct mmc_card *card, int write, unsigned fn, } int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn, - unsigned addr, int bang, u8 *buf, unsigned size) + unsigned addr, int incr_addr, u8 *buf, unsigned blocks, unsigned blksz) { struct mmc_request mrq; struct mmc_command cmd; @@ -97,7 +97,9 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn, BUG_ON(!card); BUG_ON(fn > 7); - BUG_ON(size > 512); + BUG_ON(blocks == 1 && blksz > 512); + WARN_ON(blocks == 0); + WARN_ON(blksz == 0); memset(&mrq, 0, sizeof(struct mmc_request)); memset(&cmd, 0, sizeof(struct mmc_command)); @@ -109,18 +111,21 @@ int mmc_io_rw_extended(struct mmc_card *card, int write, unsigned fn, cmd.opcode = SD_IO_RW_EXTENDED; cmd.arg = write ? 0x80000000 : 0x00000000; cmd.arg |= fn << 28; - cmd.arg |= bang ? 0x00000000 : 0x04000000; + cmd.arg |= incr_addr ? 0x04000000 : 0x00000000; cmd.arg |= addr << 9; - cmd.arg |= (size == 512) ? 0 : size; + if (blocks == 1 && blksz <= 512) + cmd.arg |= (blksz == 512) ? 0 : blksz; /* byte mode */ + else + cmd.arg |= 0x08000000 | blocks; /* block mode */ cmd.flags = MMC_RSP_R5 | MMC_CMD_ADTC; - data.blksz = size; - data.blocks = 1; + data.blksz = blksz; + data.blocks = blocks; data.flags = write ? MMC_DATA_WRITE : MMC_DATA_READ; data.sg = &sg; data.sg_len = 1; - sg_init_one(&sg, buf, size); + sg_init_one(&sg, buf, blksz * blocks); mmc_set_data_timeout(&data, card); |