From mboxrd@z Thu Jan 1 00:00:00 1970 From: Derek Simkowiak Subject: Re: [PATCH 0/3]mmc: Support-FFU-for-eMMC-v5.0 Date: Thu, 6 Nov 2014 11:12:03 -0800 Message-ID: <545BC803.1040206@webtuner.tv> References: Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from [207.46.100.71] ([207.46.100.71]:52420 "EHLO na01-by2-obe.outbound.protection.outlook.com" rhost-flags-FAIL-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751638AbaKFTnv (ORCPT ); Thu, 6 Nov 2014 14:43:51 -0500 In-Reply-To: Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Avi Shchislowski , "linux-mmc@vger.kernel.org" , "'cjb@laptop.org'" Cc: Alex Lemberg , Gwendal Grignou Regarding v5.0: a while ago, Romain wrote a small eMMC 5.0 patch that Ulf ack'd: http://comments.gmane.org/gmane.linux.kernel.mmc/23795 But this patch got lost and was never merged. I wanted to re-submit on Romain's behalf but haven't been able to find the time. Perhaps you could take this task? I have verified that this patch is necessary for my Jedec 5.0 hardware. Thanks, Derek On 11/06/2014 07:41 AM, Avi Shchislowski wrote: > The Field Firmware Update (FFU) feature is new for eMMC 5.0 spec (Jedec: > JESD84-B50.pdf) > > http://www.jedec.org/standards-documents/technology-focus-areas/flash- > memory-ssds-ufs-emmc/e-mmc > > *New ioctl has been add: > * [Alex Lemberg] "MMC_FFU_INVOKE - transfer the new Firmware data from user spac[Alex Lemberg]space > to the eMMC deivce and install the new image[Alex Lemberg] firmware. > * This solution allows to: > - Complete eMMC 5.0 FFU procedure as an atomic operation, without being interrupted by other IO requests > - Not limited Firmware data size. Using Multiple Write operations. > - Support of both EXT_CSD_MODE_OPERATION_CODES modes [Alex Lemberg] > * The solution is using "udev" device manager to transfer FW data from user space to eMMC driver [Alex Lemberg] > * Pre-existing functions from mmc_test were used in this solution. > > Signed-off-by: Avi Shchislowski > Signed-off-by: Alex Lemberg > > Avi Shchislowski (3): > mmc: add eMMC5.0 ffu ext_csd fields > mmc: Support FFU for eMMC v5.0 1/2 > mmc: Support FFU for eMMC v5.0 2/2 > > drivers/mmc/card/Kconfig | 8 + > drivers/mmc/card/block.c | 5 + > drivers/mmc/card/mmc_test.c | 97 +-------- > drivers/mmc/core/Makefile | 1 + > drivers/mmc/core/core.c | 128 ++++++++++++ > drivers/mmc/core/mmc.c | 9 + > drivers/mmc/core/mmc_ffu.c | 487 +++++++++++++++++++++++++++++++++++++++++++ > include/linux/mmc/card.h | 2 + > include/linux/mmc/core.h | 30 +++ > include/linux/mmc/mmc.h | 9 + > 10 files changed, 690 insertions(+), 86 deletions(-) create mode 100644 drivers/mmc/core/mmc_ffu.c > > -- > To unsubscribe from this list: send the line "unsubscribe linux-mmc" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html