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mmc: exynos: code cleanup and support DDR mode

Minkyu Kang u-boot 2 versions – New

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  1. v5 Latest0 of 14 patches 0 repliesNew
  2. v31 of 13 patches 0 repliesSuperseded

Patches in v5 No applies recorded yet

None of the 14 patches the cover letter announces are in this archive.

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Cover letter [U-Boot] [PATCHv5 00/14] mmc: exynos: code cleanup and support DDR mode
Quoted 43 lines · Jaehoon Chung

If card and host are supported DDR mode, then it can be used the DDR mode. This patch-set has dependency about beomho's patch-set. (Based-on u-boot-samsung repository)

It's result for loading image.

sdhci controller ->5260488 bytes read in 259 ms (19.4 MiB/s) dwmmc controller without DDR mode -> 5260488 bytes read in 202 ms (24.8 MiB/s) dwmmc controller with DDR mode -> 5260488 bytes read in 118 ms (42.5 MiB/s)

Download the 400M image with lthor.
sdhci controller -> 59.4sec (Avg 6.95 MB/s)
dwmmc controller without DDR mode -> 61.6sec (Avg 6.72MB/s) dwmmc controller with DDR mode -> 60.4sec (Avg 6.85MB/s)

Beomho Seo (3):
arm: exynos: pinmux: add sdmmc4 gpio configratuion
arm: exynos: clock: Remove exynos4x12_set_mmc_clk function
board: trats2: Enable device tree on Trats2

Jaehoon Chung (11):
ARM: exynos: board: change the mmc/sd init sequence
ARM: exynos: clock: modify the set_mmc_clk for exynos4
ARM: dts: exynos: rename from EXYNOS5_DWMMC to EXYNOS_DWMMC
mmc: exynos_dw_mmc: restore the property into host
mmc: remove the unnecessary define and fix the wrong bit control
mmc: support the DDR mode for eMMC
mmc: dw_mmc: support the DDR mode
ARM: dts: exnyos: enable dw-mmc controller
mmc: exynos_dw_mmc: enable the DDR mode
ARM: exynos4: enable the dwmmc configuration
mmc: s5p_sdhci: add the s5p_sdhci_core_init function

 arch/arm/cpu/armv7/exynos/clock.c         |   45 ++-----
 arch/arm/cpu/armv7/exynos/pinmux.c        |   35 ++++-
 arch/arm/dts/exynos4.dtsi                 |    8 ++
 arch/arm/dts/exynos4412-trats2.dts        |   12 ++
 arch/arm/dts/exynos5.dtsi                 |    8 +-
 arch/arm/include/asm/arch-exynos/clk.h    |    5 +
 board/samsung/common/board.c              |   13 +-
 doc/device-tree-bindings/exynos/dwmmc.txt |    8 +-
 drivers/mmc/dw_mmc.c                      |   12 +-
 drivers/mmc/exynos_dw_mmc.c               |  205 +++++++++++++++++++----------
Quoted 9 lines
 drivers/mmc/mmc.c                         |   16 ++-
 drivers/mmc/s5p_sdhci.c                   |   42 +++---
 include/configs/exynos4-dt.h              |    3 +
 include/dwmmc.h                           |    5 +
 include/fdtdec.h                          |    2 +-
 include/mmc.h                             |   25 ++--
 lib/fdtdec.c                              |    2 +-
 17 files changed, 275 insertions(+), 171 deletions(-)

applied to u-boot-samsung.

Thanks,
Minkyu Kang.

Read the cover letter in its thread