[PATCH v2 0/3] mmc: meson-gx: fix mmc & sdcard failur on SM1 SoCs

[Jaehoon Chung]

Amlogic SM1 SoCs doesn't work over 50MHz. When phase sets to 270', it's
working fine over 50MHz on Amlogic SM1 SoCs.

To use a proper phase value adds an u-boot only sm1 compatible.

In future, it needs to find what value is a proper about each SoCs.

According to Neil's suggestion, applied code based on below patch.
https://patchwork.ozlabs.org/project/uboot/patch/20201109031233.25320-1-jh80.chung@samsung.com

Tested on Odroid-C4/N2, VIM3.

Changelog v2:
- Rewrote "[2/3] mmc: meson-gx: limit max frequency on SM1 SoCs" 
- Applied "mmc: meson_gx_mmc: change a clock phase to stable value"
- Add Jaehoon's Signed-off tag

Neil Armstrong (3):
  mmc: meson-gx: move arch header to local header
  mmc: meson-gx: change clock phase value on SM1 SoCs
  ARM: dts: meson-sm1: add u-boot specific MMC controller compatible

 .../meson-g12b-a311d-khadas-vim3-u-boot.dtsi  |  1 +
 arch/arm/dts/meson-khadas-vim3-u-boot.dtsi    |  2 --
 .../dts/meson-sm1-khadas-vim3l-u-boot.dtsi    |  1 +
 arch/arm/dts/meson-sm1-odroid-c4-u-boot.dtsi  |  2 +-
 arch/arm/dts/meson-sm1-sei610-u-boot.dtsi     |  2 +-
 arch/arm/dts/meson-sm1-u-boot.dtsi            | 20 +++++++++++++
 drivers/mmc/meson_gx_mmc.c                    | 29 +++++++++++++++----
 .../sd_emmc.h => drivers/mmc/meson_gx_mmc.h   | 10 ++++---
 8 files changed, 54 insertions(+), 13 deletions(-)
 create mode 100644 arch/arm/dts/meson-sm1-u-boot.dtsi
 rename arch/arm/include/asm/arch-meson/sd_emmc.h => drivers/mmc/meson_gx_mmc.h (95%)

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2.29.0