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 <avi.shchislow...@sandisk.com> Signed-off-by: Alex Lemberg <alex.lemb...@sandisk.com> 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 majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
