Hi Jaehoon, Sure. And appreciate your good help :)
Best regards, Yangbo Lu > -----Original Message----- > From: Jaehoon Chung [mailto:jh80.ch...@samsung.com] > Sent: Tuesday, August 09, 2016 7:06 AM > To: Yangbo Lu; u-boot@lists.denx.de > Subject: Re: [v2] mmc: send CMD0 before CMD1 for some MMC cards > > Hi Yangbo, > > On 08/02/2016 04:33 PM, Yangbo Lu wrote: > > When the MMC framework was added in u-boot, the mmc_go_idle was added > > before mmc_send_op_cond_iter in function mmc_send_op_cond annotating > > that some cards seemed to need this. Actually, we still need to do > > this in function mmc_complete_op_cond for those cards. > > This has been verified on Micron MTFC4GACAECN eMMC chip. > > This patch is not bad.. but i need to verify more about entire sequence. > Could you wait a bit? > > Best Regards, > Jaehoon Chung > > > > > Signed-off-by: Yangbo Lu <yangbo...@nxp.com> > > --- > > drivers/mmc/mmc.c | 3 +++ > > 1 file changed, 3 insertions(+) > > > > diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index > > f8e5f7a..d4e96bc 100644 > > --- a/drivers/mmc/mmc.c > > +++ b/drivers/mmc/mmc.c > > @@ -422,6 +422,9 @@ static int mmc_complete_op_cond(struct mmc *mmc) > > > > mmc->op_cond_pending = 0; > > if (!(mmc->ocr & OCR_BUSY)) { > > + /* Some cards seem to need this */ > > + mmc_go_idle(mmc); > > + > > start = get_timer(0); > > while (1) { > > err = mmc_send_op_cond_iter(mmc, 1); > > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
