diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-08 08:12:43 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-08 08:12:43 -0800 |
commit | 79c9601c2e0dbbe69895d302de4d19f3a31fbd30 (patch) | |
tree | 78d4be2df851b2b4106adcfd736622a90cecf9e9 /arch/arm/mach-s5pc100/setup-sdhci.c | |
parent | 41440ffe21f29bdb985cab76b2d0b06d83e63b19 (diff) | |
parent | 3d14b5beba35250c548d3851a2b84fce742d8311 (diff) |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (272 commits)
Fix soc_common PCMCIA configuration
ARM: 5827/1: SA1100: h3100/h3600: emit messages on failed gpio_request
ARM: 5826/1: SA1100: h3100/h3600: always build htc-egpio driver
ARM: 5825/1: SA1100: h3600: update defconfig
ARM: 5824/1: SA1100: reuse h3600 PCMCIA driver on h3100
ARM: 5823/1: SA1100: h3100/h3600: add support for gpio-keys
ARM: 5822/1: SA1100: h3100/h3600: clean up #includes
ARM: 5821/1: SA1100: h3100/h3600: revise copyright boilerplates
ARM: 5820/1: SA1100: h3100/h3600: split h3600.c
ARM: 5819/1: SA1100: h3100/h3600: merge h3600.h and h3600_gpio.h into h3xxx.h
ARM: 5818/1: SA1100: h3100/h3600: drop old GPIO definitions
ARM: 5817/1: SA1100: h3100/h3600: configure all unused gpios as inputs
ARM: 5816/1: SA1100: h3600: remove IRQ_GPIO_* definitions
ARM: 5815/1: SA1100: h3100/h3600: remove now unused assign_h3600_egpio handlers
ARM: 5814/1: SA1100: h3100/h3600: convert all users of assign_h3600_egpio to gpiolib
ARM: 5813/1: SA1100: h3100/h3600: add htc-egpio driver
ARM: 5812/1: SA1100: h3100/h3600: separate machine-specific LCD helpers
ARM: 5811/2: pcmcia: convert sa1100_h3600 driver to gpiolib
ARM: 5799/1: SA1100: h3600: stop setting direction for LCD pins
ARM: 5798/1: SA1100: h3600: remove unused cruft from h3600.h
...
Diffstat (limited to 'arch/arm/mach-s5pc100/setup-sdhci.c')
-rw-r--r-- | arch/arm/mach-s5pc100/setup-sdhci.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pc100/setup-sdhci.c b/arch/arm/mach-s5pc100/setup-sdhci.c new file mode 100644 index 000000000000..4385986a3da0 --- /dev/null +++ b/arch/arm/mach-s5pc100/setup-sdhci.c @@ -0,0 +1,65 @@ +/* linux/arch/arm/mach-s5pc100/setup-sdhci.c + * + * Copyright 2008 Samsung Electronics + * + * S5PC100 - Helper functions for settign up SDHCI device(s) (HSMMC) + * + * Based on mach-s3c6410/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 *s5pc100_hsmmc_clksrcs[4] = { + [0] = "hsmmc", + [1] = "hsmmc", + /* [2] = "mmc_bus", not yet succesfuuly used yet */ + /* [3] = "48m", - note not succesfully used yet */ +}; + + +void s5pc100_setup_sdhci0_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 acording to card-type */ + + writel(S3C64XX_SDHCI_CONTROL4_DRIVE_9mA, r + S3C64XX_SDHCI_CONTROL4); + + ctrl2 = 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); + + writel(ctrl2, r + S3C_SDHCI_CONTROL2); + writel(ctrl3, r + S3C_SDHCI_CONTROL3); +} |