From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jaehoon Chung Subject: Re: [PATCH 4/5] mmc: dw-mmc: add the header file for exynos specific code. Date: Fri, 24 Aug 2012 13:58:34 +0900 Message-ID: <503709FA.4090302@samsung.com> References: <503614A7.3050004@samsung.com> <00ad01cd81ac$87e285e0$97a791a0$%jun@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Return-path: Received: from mailout4.samsung.com ([203.254.224.34]:22932 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750847Ab2HXE6z (ORCPT ); Fri, 24 Aug 2012 00:58:55 -0400 Received: from epcpsbgm2.samsung.com (mailout4.samsung.com [203.254.224.34]) by mailout4.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0M9800CRPTU32IJ0@mailout4.samsung.com> for linux-mmc@vger.kernel.org; Fri, 24 Aug 2012 13:58:52 +0900 (KST) Received: from [10.90.51.55] by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0M9800FHBTU23R50@mmp1.samsung.com> for linux-mmc@vger.kernel.org; Fri, 24 Aug 2012 13:58:51 +0900 (KST) In-reply-to: <00ad01cd81ac$87e285e0$97a791a0$%jun@samsung.com> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Seungwon Jeon Cc: 'Jaehoon Chung' , 'linux-mmc' , 'Chris Ball' , 'Kyungmin Park' , 'Will Newton' , 'James Hogan' On 08/24/2012 12:57 PM, Seungwon Jeon wrote: > On Thursday, August 23, 2012, Jaehoon Chung wrote: >> Signed-off-by: Jaehoon Chung >> Signed-off-by: Kyungmin Park >> --- >> 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 >> +#include >> + >> +#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. 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@vger.kernel.org >> 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@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >