[U-Boot] [PATCHv3 00/13] mmc: exynos: code cleanup and support DDR mode

Jaehoon Chung jh80.chung at samsung.com
Tue Apr 29 06:06:50 CEST 2014


Dear, All.

Did you have any comment? 

Best Regards,
Jaehoon Chung

On 04/11/2014 02:55 PM, Jaehoon Chung wrote:
> 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 (10):
>   ARM: exynos: board: change the mmc/sd init sequence
>   ARM: exynos: clock: modify the set_mmc_clk for exynos4
>   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     |   18 ++-
>  arch/arm/dts/exynos4.dtsi              |    8 ++
>  arch/arm/dts/exynos4412-trats2.dts     |   12 ++
>  arch/arm/include/asm/arch-exynos/clk.h |    5 +
>  board/samsung/common/board.c           |   13 +-
>  drivers/mmc/dw_mmc.c                   |   12 +-
>  drivers/mmc/exynos_dw_mmc.c            |  209 ++++++++++++++++++++------------
>  drivers/mmc/mmc.c                      |   16 ++-
>  drivers/mmc/s5p_sdhci.c                |   42 +++----
>  include/configs/exynos4-dt.h           |    3 +
>  include/dwmmc.h                        |    5 +
>  include/mmc.h                          |   25 ++--
>  13 files changed, 250 insertions(+), 163 deletions(-)
> 



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