On 08/27/2012 10:28 AM, Seungwon Jeon wrote: > On Friday, August 24, 2012, Jaehoon Chung <jh80.chung@xxxxxxxxxxx> wrote: >> On 08/24/2012 12:57 PM, Seungwon Jeon wrote: >>> On Thursday, August 23, 2012, Jaehoon Chung <jh80.chung@xxxxxxxxxxx> wrote: >>>> Signed-off-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx> >>>> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> >>>> --- >>>> include/linux/mmc/exynos-dw_mmc.h | 55 +++++++++++++++++++++++++++++++++++++ >>>> 1 files changed, 55 insertions(+), 0 deletions(-) >>>> create mode 100644 include/linux/mmc/exynos-dw_mmc.h >>>> >>>> diff --git a/include/linux/mmc/exynos-dw_mmc.h b/include/linux/mmc/exynos-dw_mmc.h >>>> new file mode 100644 >>>> index 0000000..03444c2 >>>> --- /dev/null >>>> +++ b/include/linux/mmc/exynos-dw_mmc.h >>>> @@ -0,0 +1,55 @@ >>>> +/* >>>> + * Synopsys DesignWare Multimedia Card Interface driver >>>> + * >>>> + * Copyright (c) 2012 Samsung Electronics Co., Ltd. >>>> + * http://www.samsung.com >>>> + * >>>> + * Header file for Exynos specific register >>>> + * >>>> + * This program is free software; you can redistribute it and/or modify >>>> + * it under the terms of the GNU General Public License version 2 as >>>> + * published by the Free Software Foundation. >>>> + */ >>>> + >>>> +#ifndef _EXYNOS_DW_MMC_H >>>> +#define _EXYNOS_DW_MMC_H >>>> +#include <linux/mmc/dw_mmc.h> >>>> +#include <linux/mmc/host.h> >>>> + >>>> +#define SDMMC_EXYNOS_CLKSEL 0x09C >>>> + >>>> +#define SDMMC_GET_CLK_DRV(x) ((x) >> 16 & 0x7) >>>> +#define SDMMC_GET_CLK_SAMPLE(x) ((x) & 0x7) >>>> +#define SDMMC_CLK_RESET_DRV_SAMPLE (0x00070007); >>> Could you check the width of register field? >>> There is some difference between ExynosX. >>> It should cover all. >> I checked the Exynos4 and Exynos5. >> So i used the 0x7. >> If i miss something, let me know. > In case of Eyxnos4210, only 2 bits are used. > And new field(DIVRATIO) is added in Exynos5. > It needs to check DIVRATIO for SDMMC_CLK_RESET_DRV_SAMPLE. I understood yours. I will resend the patch. Best Regards, Jaehoon Chung > > Thanks, > Seungwon Jeon. >> >> Best Regards, >> Jaehoon Chung >>> >>>> + >>>> +#define mci_readl(dev, reg) \ >>>> + __raw_readl((dev)->regs + SDMMC_##reg) >>>> +#define mci_writel(dev, reg, value) \ >>>> + __raw_writel((value), (dev)->regs + SDMMC_##reg) >>>> + >>>> +static inline int exynos_get_clk_drv(struct dw_mci *host) >>>> +{ >>>> + return SDMMC_GET_CLK_DRV(mci_readl(host, EXYNOS_CLKSEL)); >>>> +} >>>> + >>>> +static inline int exynos_get_clk_sample(struct dw_mci *host) >>>> +{ >>>> + return SDMMC_GET_CLK_DRV(mci_readl(host, EXYNOS_CLKSEL)); >>>> +} >>>> + >>>> +static inline void exynos_set_clk_drv_sample(struct dw_mci *host, >>>> + struct mmc_ios *ios) >>>> +{ >>>> + u32 regs; >>>> + >>>> + regs = mci_readl(host, EXYNOS_CLKSEL); >>>> + regs &= ~SDMMC_CLK_RESET_DRV_SAMPLE; >>>> + if (ios->timing == MMC_TIMING_UHS_DDR50) >>>> + regs |= host->pdata->ddr_timing; >>>> + else >>>> + regs |= host->pdata->sdr_timing; >>>> + >>>> + mci_writel(host, EXYNOS_CLKSEL, regs); >>>> +} >>>> + >>>> +#endif /* _EXYNOS_DW_MMC_H */ >>>> -- >>>> 1.7.4.1 >>>> -- >>>> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in >>>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>>> More majordomo info at http://vger.kernel.org/majordomo-info.html >>> >>> -- >>> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in >>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>> More majordomo info at http://vger.kernel.org/majordomo-info.html >>> >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- > To unsubscribe from this list: send the line "unsubscribe linux-mmc" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
