[U-Boot] [PATCH V3] mmc: seperate block number into small parts for multi-write cmd
Wolfgang Denk
wd at denx.de
Wed Oct 13 21:57:17 CEST 2010
Dear Lei Wen,
In message <1286811544-9312-1-git-send-email-leiwen at marvell.com> you wrote:
> Constraint the mmc framework to only send no more than 65535
> blocks in one go during the multi-write command. This constraint
> comes due to the limitation of 16bit width block counter register
> at some hardware.
...
> @@ -123,7 +111,6 @@ mmc_bwrite(int dev_num, ulong start, lbaint_t blkcnt, const void*src)
> data.flags = MMC_DATA_WRITE;
>
> err = mmc_send_cmd(mmc, &cmd, &data);
> -
> if (err) {
> printf("mmc write failed\n\r");
> return err;
Please don;t drop this empty line.
> + do {
> + /* The 65535 constraint comes from some hardware has
> + * only 16 bit width block number counter */
Incorrect multi-line comment style.
> + cur = (blocks_todo > 65535) ? 65535 : blocks_todo;
> + if(mmc_write_blocks(mmc, start, cur, src) != cur)
> + return -1;
> + blocks_todo -= cur;
> + start += cur;
> + src += cur * mmc->write_bl_len;
> + } while (blocks_todo > 0);
> return blkcnt;
Please add a blank line before the "return".
Thanks.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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