diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-15 12:33:40 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-15 12:33:40 -0800 |
commit | 16c1020362083b320868c0deef492249089c3cd3 (patch) | |
tree | ff200df3502e6010745713275d69fd0a07e399cf /arch/arm/mach-s3c2416/setup-sdhci.c | |
parent | 65e5d002b5ad220db2bf9557f53de5a98f7dab86 (diff) | |
parent | bbba75606963c82febf7bd2761ea848ac5d1a1bb (diff) |
Merge branch 'devel-stable' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel-stable' of master.kernel.org:/home/rmk/linux-2.6-arm: (161 commits)
ARM: pxa: fix building issue of missing physmap.h
ARM: mmp: PXA910 drive strength FAST using wrong value
ARM: mmp: MMP2 drive strength FAST using wrong value
ARM: pxa: fix recursive calls in pxa_low_gpio_chip
AT91: Support for gsia18s board
AT91: Acme Systems FOX Board G20 board files
AT91: board-sam9m10g45ek.c: Remove duplicate inclusion of mach/hardware.h
ARM: pxa: fix suspend/resume array index miscalculation
ARM: pxa: use cpu_has_ipr() consistently in irq.c
ARM: pxa: remove unused variable in clock-pxa3xx.c
ARM: pxa: fix warning in zeus.c
ARM: sa1111: fix typo in sa1111_retrigger_lowirq()
ARM mxs: clkdev related compile fixes
ARM i.MX mx31_3ds: Fix MC13783 regulator names
ARM: plat-stmp3xxx: irq_data conversion.
ARM: plat-spear: irq_data conversion.
ARM: plat-orion: irq_data conversion.
ARM: plat-omap: irq_data conversion.
ARM: plat-nomadik: irq_data conversion.
ARM: plat-mxc: irq_data conversion.
...
Fix up trivial conflict in arch/arm/plat-omap/gpio.c (Lennert
Buytenhek's irq_data conversion clashing with some omap irq updates)
Diffstat (limited to 'arch/arm/mach-s3c2416/setup-sdhci.c')
-rw-r--r-- | arch/arm/mach-s3c2416/setup-sdhci.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2416/setup-sdhci.c b/arch/arm/mach-s3c2416/setup-sdhci.c new file mode 100644 index 00000000000..ed34fad8f2c --- /dev/null +++ b/arch/arm/mach-s3c2416/setup-sdhci.c @@ -0,0 +1,61 @@ +/* linux/arch/arm/mach-s3c2416/setup-sdhci.c + * + * Copyright 2010 Promwad Innovation Company + * Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com> + * + * S3C2416 - Helper functions for settign up SDHCI device(s) (HSMMC) + * + * Based on mach-s3c64xx/setup-sdhci.c + * + * 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> +#include <plat/sdhci.h> + +/* clock sources for the mmc bus clock, order as for the ctrl2[5..4] */ + +char *s3c2416_hsmmc_clksrcs[4] = { + [0] = "hsmmc", + [1] = "hsmmc", + [2] = "hsmmc-if", + /* [3] = "48m", - note not successfully used yet */ +}; + +void s3c2416_setup_sdhci_cfg_card(struct platform_device *dev, + void __iomem *r, + struct mmc_ios *ios, + struct mmc_card *card) +{ + u32 ctrl2, ctrl3; + + ctrl2 = __raw_readl(r + S3C_SDHCI_CONTROL2); + ctrl2 &= S3C_SDHCI_CTRL2_SELBASECLK_MASK; + ctrl2 |= (S3C64XX_SDHCI_CTRL2_ENSTAASYNCCLR | + S3C64XX_SDHCI_CTRL2_ENCMDCNFMSK | + S3C_SDHCI_CTRL2_ENFBCLKRX | + S3C_SDHCI_CTRL2_DFCNT_NONE | + S3C_SDHCI_CTRL2_ENCLKOUTHOLD); + + 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); + + __raw_writel(ctrl2, r + S3C_SDHCI_CONTROL2); + __raw_writel(ctrl3, r + S3C_SDHCI_CONTROL3); +} |