Hi Jaehoon, On Apr 2, 2014, at 9:17 AM, 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) > > http://patchwork.ozlabs.org/patch/331986/ > http://patchwork.ozlabs.org/patch/331987/ > http://patchwork.ozlabs.org/patch/331989/ > http://patchwork.ozlabs.org/patch/331988/ > > 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) > > Jaehoon Chung (10): > mmc: s5p_sdhci: add the s5p_sdhci_core_init function > 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 > > arch/arm/cpu/armv7/exynos/clock.c | 16 ++- > arch/arm/dts/exynos4412-trats2.dts | 6 +- > arch/arm/include/asm/arch-exynos/clk.h | 5 + > board/samsung/common/board.c | 13 +- > drivers/mmc/dw_mmc.c | 10 +- > drivers/mmc/exynos_dw_mmc.c | 221 ++++++++++++++++++++------------ > 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 ++-- > 11 files changed, 225 insertions(+), 137 deletions(-) > > -- > 1.7.9.5 > At first glance it looks OK. I'll wait until the dependency land on master and then look into it more closely. Regards -- Pantelis _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
