diff options
Diffstat (limited to 'arch/arm/mach-exynos4/setup-sdhci.c')
-rw-r--r-- | arch/arm/mach-exynos4/setup-sdhci.c | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/arch/arm/mach-exynos4/setup-sdhci.c b/arch/arm/mach-exynos4/setup-sdhci.c deleted file mode 100644 index 1e83f8cf236d..000000000000 --- a/arch/arm/mach-exynos4/setup-sdhci.c +++ /dev/null @@ -1,69 +0,0 @@ -/* linux/arch/arm/mach-exynos4/setup-sdhci.c - * - * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * EXYNOS4 - Helper functions for settign up SDHCI device(s) (HSMMC) - * - * 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. -*/ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/interrupt.h> -#include <linux/platform_device.h> -#include <linux/io.h> - -#include <linux/mmc/card.h> -#include <linux/mmc/host.h> - -#include <plat/regs-sdhci.h> - -/* clock sources for the mmc bus clock, order as for the ctrl2[5..4] */ - -char *exynos4_hsmmc_clksrcs[4] = { - [0] = NULL, - [1] = NULL, - [2] = "sclk_mmc", /* mmc_bus */ - [3] = NULL, -}; - -void exynos4_setup_sdhci_cfg_card(struct platform_device *dev, void __iomem *r, - struct mmc_ios *ios, struct mmc_card *card) -{ - u32 ctrl2, ctrl3; - - /* don't need to alter anything according to card-type */ - - ctrl2 = readl(r + S3C_SDHCI_CONTROL2); - - /* select base clock source to HCLK */ - - ctrl2 &= S3C_SDHCI_CTRL2_SELBASECLK_MASK; - - /* - * clear async mode, enable conflict mask, rx feedback ctrl, SD - * clk hold and no use debounce count - */ - - ctrl2 |= (S3C64XX_SDHCI_CTRL2_ENSTAASYNCCLR | - S3C64XX_SDHCI_CTRL2_ENCMDCNFMSK | - S3C_SDHCI_CTRL2_ENFBCLKRX | - S3C_SDHCI_CTRL2_DFCNT_NONE | - S3C_SDHCI_CTRL2_ENCLKOUTHOLD); - - /* Tx and Rx feedback clock delay control */ - - if (ios->clock < 25 * 1000000) - ctrl3 = (S3C_SDHCI_CTRL3_FCSEL3 | - S3C_SDHCI_CTRL3_FCSEL2 | - S3C_SDHCI_CTRL3_FCSEL1 | - S3C_SDHCI_CTRL3_FCSEL0); - else - ctrl3 = (S3C_SDHCI_CTRL3_FCSEL1 | S3C_SDHCI_CTRL3_FCSEL0); - - writel(ctrl2, r + S3C_SDHCI_CONTROL2); - writel(ctrl3, r + S3C_SDHCI_CONTROL3); -} |