Hi, Am Montag, 5. August 2024, 10:59:35 CEST schrieb Sergey 'Jin' Bostandzhyan: > On Sun, Aug 04, 2024 at 01:27:50AM +0100, Daniel Golle wrote: > > On Thu, Aug 01, 2024 at 05:57:35PM +0000, Sergey Bostandzhyan wrote: > > > The R2S Plus is basically an R2S with additional eMMC. > > > > > > The eMMC configuration for the DTS has been extracted and copied from > > > rk3328-nanopi-r2.dts, v2017.09 branch from the friendlyarm/uboot-rockchip > > > repository. > > > > > > Signed-off-by: Sergey Bostandzhyan <jin@xxxxxxxxxxxx> > > > --- > > > arch/arm64/boot/dts/rockchip/Makefile | 1 + > > > .../dts/rockchip/rk3328-nanopi-r2s-plus.dts | 31 +++++++++++++++++++ > > > 2 files changed, 32 insertions(+) > > > create mode 100644 arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s-plus.dts > > > > > > diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile > > > index fda1b980eb4b..36258dc8dafd 100644 > > > --- a/arch/arm64/boot/dts/rockchip/Makefile > > > +++ b/arch/arm64/boot/dts/rockchip/Makefile > > > @@ -20,6 +20,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-evb.dtb > > > dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-nanopi-r2c.dtb > > > dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-nanopi-r2c-plus.dtb > > > dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-nanopi-r2s.dtb > > > +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-nanopi-r2s-plus.dtb > > > dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-orangepi-r1-plus.dtb > > > dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-orangepi-r1-plus-lts.dtb > > > dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-rock64.dtb > > > diff --git a/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s-plus.dts b/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s-plus.dts > > > new file mode 100644 > > > index 000000000000..7b83090a2145 > > > --- /dev/null > > > +++ b/arch/arm64/boot/dts/rockchip/rk3328-nanopi-r2s-plus.dts > > > @@ -0,0 +1,31 @@ > > > +// SPDX-License-Identifier: GPL-2.0+ > > > +/* > > > + * (C) Copyright 2018 FriendlyElec Computer Tech. Co., Ltd. > > > + * (http://www.friendlyarm.com) > > > + * > > > + * (C) Copyright 2016 Rockchip Electronics Co., Ltd > > > + */ > > > + > > > +/dts-v1/; > > > +#include "rk3328-nanopi-r2s.dts" > > > + > > > +/ { > > > + model = "FriendlyElec NanoPi R2S Plus"; > > > + compatible = "friendlyarm,nanopi-r2s-plus", "rockchip,rk3328"; > > > + > > > + aliases { > > > + mmc1 = &emmc; > > > + }; > > > +}; > > > + > > > +&emmc { > > > + bus-width = <8>; > > > + cap-mmc-highspeed; > > > + supports-emmc; > > > + disable-wp; > > > + non-removable; > > > + num-slots = <1>; > > > + pinctrl-names = "default"; > > > + pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>; > > > > I think it's worth adding > > > > mmc-hs200-1_8v; > > > > > > I've tried getting the best speed possible and while HS400 with and > > without enhanced strobe did NOT work, hs200 works just fine. > > [ 0.459863] mmc_host mmc1: Bus speed (slot 0) = 50000000Hz (slot req 52000000Hz, actual 50000000HZ div = 0) > > [ 0.460884] mmc_host mmc1: Bus speed (slot 0) = 150000000Hz (slot req 150000000Hz, actual 150000000HZ div = 0) > > ... > > [ 0.728220] dwmmc_rockchip ff520000.mmc: Successfully tuned phase to 194 > > [ 0.728940] mmc1: new HS200 MMC card at address 0001 > > [ 0.730774] mmcblk1: mmc1:0001 A3A551 28.9 GiB > > [ 0.733262] mmcblk1: p1 p2 > > [ 0.734562] mmcblk1boot0: mmc1:0001 A3A551 4.00 MiB > > [ 0.736818] mmcblk1boot1: mmc1:0001 A3A551 4.00 MiB > > [ 0.738503] mmcblk1rpmb: mmc1:0001 A3A551 16.0 MiB, chardev (245:0) > > > > root@OpenWrt:/# hdparm -t /dev/mmcblk1 > > > > /dev/mmcblk1: > > Timing buffered disk reads: 342 MB in 3.00 seconds = 113.81 MB/sec > > > > > > Without 'mmc-hs200-1_8v' property in DT the eMMC is detected as > > [ 0.440465] mmc_host mmc1: Bus speed (slot 0) = 50000000Hz (slot req 52000000Hz, actual 50000000HZ div = 0) > > [ 0.442032] mmc1: new high speed MMC card at address 0001 > > [ 0.444261] mmcblk1: mmc1:0001 A3A551 28.9 GiB > > [ 0.447388] mmcblk1: p1 p2 > > [ 0.448744] mmcblk1boot0: mmc1:0001 A3A551 4.00 MiB > > [ 0.451065] mmcblk1boot1: mmc1:0001 A3A551 4.00 MiB > > [ 0.452871] mmcblk1rpmb: mmc1:0001 A3A551 16.0 MiB, chardev (245:0) > > > > > > root@OpenWrt:/# hdparm -t /dev/mmcblk1 > > > > /dev/mmcblk1: > > Timing buffered disk reads: 134 MB in 3.03 seconds = 44.18 MB/sec > > > > > > > + status = "okay"; > > > +}; > > > > I'm right now trying to get SDIO RTL8822CS working, so far I'm out of luck, > > but it can be added later once we got it working. > > would you be interested in taking over my attempted patches? Thing is, > that I am a userspace guy who only copy-pasted some entries from > FriendlyElec and things happened to work, but I really have no clue what I am > doing when it comes to hardware and DTS. I see that some changes were suggested, > not only by you above, but also by others earlier and I have little > understanding of where I should be inserting what and how. > > At this point I think it would make more sense if someone who actually > understands what they are doing would continue to tune the DTS :) > > So it'd be great if either you or anyone else would be willing to take > over? Though, a board devicetree is a nice way to get "your feet wet" in the kernel :-) and for a lot of people scratching ones own itches gets them started. The devicetree is easy enough, also looks correct and you even got the binding change correct - and you're the person with the actual board :-) . Could you possibly test if the mmc-hs200-1_8v; property works for you? Thanks a lot Heiko
