This series enables SDHI instances on R-Car Gen3 to access eMMC with 8 bit bus width. I think the patch descriptions speak for themselves. I decided to not protect this new feature with a flag because it needs specifically to be enabled by setting the bus width to 8. No legacy platform does that. Note that I decided to use the pattern that pinctrl-0 is 3.3v and pinctrl-1 is 1.8v, although the eMMC is fixed at 1.8v. I tried a few ways to only use pinctrl-0 being 1.8v here, but they all ended up to be confusing for users IMO, so I sticked to the most consistent solution after all. Changes since V1: * merged the two distinct series (drivers + DTS) into one: patches 1-4 are for Ulf, I will ping Simon for patches 5+6 when the time is ready. * DTS now contains 'non-removable' and we have a software workaround for now. These patches are based on top of Simon's sdr104-v7 patches but they apply to current mmc/next as well. A branch can be found here: git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/topic/sdhi-8bit-emmc Please review, comment, apply... Wolfram Wolfram Sang (6): mmc: add define for R1 response without CRC mmc: rtsx_pci: use new macro for R1 without CRC mmc: rtsx_usb: use new macro for R1 without CRC mmc: tmio: add eMMC support arm64: dts: r8a7795: salvator: enable on-board eMMC arm64: dts: r8a7796: salvator: enable on board eMMC arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts | 43 +++++++++++++++++++++ arch/arm64/boot/dts/renesas/r8a7796-salvator-x.dts | 44 +++++++++++++++++++++- drivers/mmc/host/rtsx_pci_sdmmc.c | 2 +- drivers/mmc/host/rtsx_usb_sdmmc.c | 2 +- drivers/mmc/host/tmio_mmc.h | 3 ++ drivers/mmc/host/tmio_mmc_pio.c | 38 +++++++++++++------ include/linux/mmc/core.h | 3 ++ 7 files changed, 120 insertions(+), 15 deletions(-) -- 2.9.3
