[U-Boot] [PATCH v4 0/9] mmc: sunxi: Enable DM_MMC

[Tomas Novotny <tomas@novotny.cz>]

Hi Andre,

On Tue, 29 Jan 2019 15:54:07 +0000, Andre Przywara <andre.przywara@arm.com>
wrote:
> This series gathers all remaining patches we need to enable DM_MMC for
> Allwinner boards. It relies on the clock gates framework already merged,
> and adds the respective gates and resets for each SoC.
> It then teaches the sunxi MMC driver to use the clock framework for
> those reset and gates clocks. The "mod clock", responsible for setting
> the actual interface speed, is still handled in the MMC driver, as the
> DM_CLK part of that is not ready yet (and is not trivial).
> This allows to turn on DM_MMC, and gets rid of the doomsday warning
> message every Allwinner board was blessed with for a while.
> 
> This series is available at:
> https://github.com/apritzel/u-boot/commits/sunxi-dm-gates

I've briefly tested that branch on A83t mainlined tablet (TBS A711). I was
able to boot from SD card and eMMC.

Just noticed that message:
MMC:   Device 'mmc at 1c11000': seq 1 is in use by 'mmc at 1c10000'
mmc at 1c0f000: 0, mmc at 1c10000: 2, mmc at 1c11000: 1
I guess that this is the mmc1/2 renaming stuff?

With 2019.01 I got:
MMC:   SUNXI SD/MMC: 0, SUNXI SD/MMC: 1

Tomas

> ---------------------------
> 
> Jagan, can you please have a look whether this is fine? If you are not
> sure about patch 7, you can leave this one out for now.
> If you are good with it, can you merge it to sunxi/master and send the
> PR, so that it still goes into the release?
> We can then fix all the remaining issues until the release.
> 
> Cheers,
> Andre.
> 
> Changes in v4:
> - Add proper A80 support (special MMC config clock)
> - Add V3s support (gates and resets)
> - Fix pinmux problem when not booting via SD or eMMC
> - smaller fixes per ML discussion
> Changes for v3:
> - Handle clock via CLK framework.
> Changes for v2:
> - update the 'reset enablement' logic to do
>   required SoC's
> 
> Andre Przywara (5):
>   sunxi: clk: enable clk and reset for CCU devices
>   sunxi: clk: add MMC gates/resets
>   sunxi: clk: A80: add MMC clock support
>   mmc: sunxi: Add DM clk and reset support
>   sunxi: board: do MMC pinmux setup for DM_MMC builds
> 
> Jagan Teki (4):
>   mmc: sunxi: Add remaining compatible strings
>   mmc: sunxi: Add DM_MMC support for H6
>   arm: sunxi: Enable DM_MMC
>   arm: dts: sunxi: Enumerate MMC2 as MMC1
> 
>  arch/arm/Kconfig                      |  1 +
>  arch/arm/dts/sunxi-u-boot.dtsi        |  4 +++
>  arch/arm/mach-sunxi/Kconfig           |  1 -
>  board/sunxi/board.c                   | 15 ++++++++++
>  configs/Linksprite_pcDuino3_defconfig |  1 -
>  drivers/clk/sunxi/clk_a10.c           |  4 +++
>  drivers/clk/sunxi/clk_a10s.c          |  3 ++
>  drivers/clk/sunxi/clk_a23.c           |  6 ++++
>  drivers/clk/sunxi/clk_a31.c           |  8 +++++
>  drivers/clk/sunxi/clk_a64.c           |  6 ++++
>  drivers/clk/sunxi/clk_a80.c           | 32 +++++++++++++++++++-
>  drivers/clk/sunxi/clk_a83t.c          |  6 ++++
>  drivers/clk/sunxi/clk_h3.c            |  6 ++++
>  drivers/clk/sunxi/clk_h6.c            |  6 ++++
>  drivers/clk/sunxi/clk_r40.c           |  8 +++++
>  drivers/clk/sunxi/clk_sunxi.c         | 12 ++++++++
>  drivers/clk/sunxi/clk_v3s.c           |  6 ++++
>  drivers/mmc/sunxi_mmc.c               | 42 +++++++++++++++++++++++----
>  18 files changed, 159 insertions(+), 8 deletions(-)
>