From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Vasut Date: Sat, 1 Sep 2012 08:15:26 +0200 Subject: [U-Boot] [U-BOOT][PATCH] mmc: support the revision check for eMMC4.5 In-Reply-To: References: <4F716935.4070709@samsung.com> Message-ID: <201209010815.27149.marek.vasut@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Dear Jae hoon Chung, > Hi, > > Anybody think about this patch? > mmcinfo is produce correctly? > > if i miss something, let me know, plz. Andy? > Best Regards, > Jaehoon Chung > > 2012/3/27 Jaehoon Chung : > > eMMC card is introduced the eMMC4.5. > > But now eMMC card is checked up to eMMC4.0. > > This patch is supported until eMMC4.5 > > > > Signed-off-by: Jaehoon Chung > > Signed-off-by: Kyungmin Park > > --- > > common/cmd_mmc.c | 5 ++++- > > drivers/mmc/mmc.c | 25 +++++++++++++++++++++++++ > > include/mmc.h | 8 ++++++++ > > 3 files changed, 37 insertions(+), 1 deletions(-) > > > > diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c > > index 8f13c22..ff150ca 100644 > > --- a/common/cmd_mmc.c > > +++ b/common/cmd_mmc.c > > @@ -106,7 +106,10 @@ static void print_mmcinfo(struct mmc *mmc) > > printf("Rd Block Len: %d\n", mmc->read_bl_len); > > > > printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC", > > - (mmc->version >> 4) & 0xf, mmc->version & 0xf); > > + (mmc->version >> 4) & 0xf, > > + (mmc->version & 0xf) == EXT_CSD_REV_1_5 ? > > + 41 :((mmc->version & 0xf) > EXT_CSD_REV_1_5 ? > > + (mmc->version & 0xf) - 1 : (mmc->version & > > 0xf))); > > > > printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No"); > > puts("Capacity: "); > > diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c > > index 49c3349..e035012 100644 > > --- a/drivers/mmc/mmc.c > > +++ b/drivers/mmc/mmc.c > > @@ -651,6 +651,31 @@ int mmc_change_freq(struct mmc *mmc) > > if (err) > > return err; > > > > + switch (ext_csd[EXT_CSD_REV]) { > > + case EXT_CSD_REV_1_0: > > + mmc->version |= EXT_CSD_REV_1_0; > > + break; > > + case EXT_CSD_REV_1_1: > > + mmc->version |= EXT_CSD_REV_1_1; > > + break; > > + case EXT_CSD_REV_1_2: > > + mmc->version |= EXT_CSD_REV_1_2; > > + break; > > + case EXT_CSD_REV_1_3: > > + mmc->version |= EXT_CSD_REV_1_3; > > + break; > > + case EXT_CSD_REV_1_5: > > + mmc->version |= EXT_CSD_REV_1_5; > > + break; > > + case EXT_CSD_REV_1_6: > > + mmc->version |= EXT_CSD_REV_1_6; > > + break; > > + case EXT_CSD_REV_1_4: > > + default: > > + printf("Unknown revision - %x\n", ext_csd[EXT_CSD_REV]); > > + return 0; > > + } > > + > > /* No high-speed support */ > > if (!ext_csd[EXT_CSD_HS_TIMING]) > > return 0; > > diff --git a/include/mmc.h b/include/mmc.h > > index 30c2375..726da99 100644 > > --- a/include/mmc.h > > +++ b/include/mmc.h > > @@ -157,6 +157,14 @@ > > #define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */ > > #define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */ > > > > +#define EXT_CSD_REV_1_0 0 > > +#define EXT_CSD_REV_1_1 1 > > +#define EXT_CSD_REV_1_2 2 > > +#define EXT_CSD_REV_1_3 3 > > +#define EXT_CSD_REV_1_4 4 > > +#define EXT_CSD_REV_1_5 5 > > +#define EXT_CSD_REV_1_6 6 > > + > > /* > > * EXT_CSD field definitions > > */ > > -- > > 1.7.4.1 > > _______________________________________________ > > U-Boot mailing list > > U-Boot at lists.denx.de > > http://lists.denx.de/mailman/listinfo/u-boot > > _______________________________________________ > U-Boot mailing list > U-Boot at lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot