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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-14 13:42:43 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-14 13:42:43 -0700 |
commit | 2cf4d4514d5b43c1f3b64bd0ec8b9853bde8f1dc (patch) | |
tree | e35a625496acc6ac852846d40b8851186b9d1ac4 /arch/arm/mach-w90x900/mfp-w90p910.c | |
parent | 44b7532b8b464f606053562400719c9c21276037 (diff) | |
parent | ce53895a5d24e0ee19fb92f56c17323fb4c9ab27 (diff) | |
download | op-kernel-dev-2cf4d4514d5b43c1f3b64bd0ec8b9853bde8f1dc.zip op-kernel-dev-2cf4d4514d5b43c1f3b64bd0ec8b9853bde8f1dc.tar.gz |
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (417 commits)
MAINTAINERS: EB110ATX is not ebsa110
MAINTAINERS: update Eric Miao's email address and status
fb: add support of LCD display controller on pxa168/910 (base layer)
[ARM] 5552/1: ep93xx get_uart_rate(): use EP93XX_SYSCON_PWRCNT and EP93XX_SYSCON_PWRCN
[ARM] pxa/sharpsl_pm: zaurus needs generic pxa suspend/resume routines
[ARM] 5544/1: Trust PrimeCell resource sizes
[ARM] pxa/sharpsl_pm: cleanup of gpio-related code.
[ARM] pxa/sharpsl_pm: drop set_irq_type calls
[ARM] pxa/sharpsl_pm: merge pxa-specific code into generic one
[ARM] pxa/sharpsl_pm: merge the two sharpsl_pm.c since it's now pxa specific
[ARM] sa1100: remove unused collie_pm.c
[ARM] pxa: fix the conflicting non-static declarations of global_gpios[]
[ARM] 5550/1: Add default configure file for w90p910 platform
[ARM] 5549/1: Add clock api for w90p910 platform.
[ARM] 5548/1: Add gpio api for w90p910 platform
[ARM] 5551/1: Add multi-function pin api for w90p910 platform.
[ARM] Make ARM_VIC_NR depend on ARM_VIC
[ARM] 5546/1: ARM PL022 SSP/SPI driver v3
ARM: OMAP4: SMP: Update defconfig for OMAP4430
ARM: OMAP4: SMP: Enable SMP support for OMAP4430
...
Diffstat (limited to 'arch/arm/mach-w90x900/mfp-w90p910.c')
-rw-r--r-- | arch/arm/mach-w90x900/mfp-w90p910.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/arch/arm/mach-w90x900/mfp-w90p910.c b/arch/arm/mach-w90x900/mfp-w90p910.c new file mode 100644 index 0000000..a3520fe --- /dev/null +++ b/arch/arm/mach-w90x900/mfp-w90p910.c @@ -0,0 +1,116 @@ +/* + * linux/arch/arm/mach-w90x900/mfp-w90p910.c + * + * Copyright (c) 2008 Nuvoton technology corporation + * + * Wan ZongShun <mcuos.com@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation;version 2 of the License. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/device.h> +#include <linux/list.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/string.h> +#include <linux/clk.h> +#include <linux/mutex.h> +#include <linux/io.h> + +#include <mach/hardware.h> + +#define REG_MFSEL (W90X900_VA_GCR + 0xC) + +#define GPSELF (0x01 << 1) + +#define GPSELC (0x03 << 2) +#define ENKPI (0x02 << 2) +#define ENNAND (0x01 << 2) + +#define GPSELEI0 (0x01 << 26) +#define GPSELEI1 (0x01 << 27) + +static DECLARE_MUTEX(mfp_sem); + +void mfp_set_groupf(struct device *dev) +{ + unsigned long mfpen; + const char *dev_id; + + BUG_ON(!dev); + + down(&mfp_sem); + + dev_id = dev_name(dev); + + mfpen = __raw_readl(REG_MFSEL); + + if (strcmp(dev_id, "w90p910-emc") == 0) + mfpen |= GPSELF;/*enable mac*/ + else + mfpen &= ~GPSELF;/*GPIOF[9:0]*/ + + __raw_writel(mfpen, REG_MFSEL); + + up(&mfp_sem); +} +EXPORT_SYMBOL(mfp_set_groupf); + +void mfp_set_groupc(struct device *dev) +{ + unsigned long mfpen; + const char *dev_id; + + BUG_ON(!dev); + + down(&mfp_sem); + + dev_id = dev_name(dev); + + mfpen = __raw_readl(REG_MFSEL); + + if (strcmp(dev_id, "w90p910-lcd") == 0) + mfpen |= GPSELC;/*enable lcd*/ + else if (strcmp(dev_id, "w90p910-kpi") == 0) { + mfpen &= (~GPSELC);/*enable kpi*/ + mfpen |= ENKPI; + } else if (strcmp(dev_id, "w90p910-nand") == 0) { + mfpen &= (~GPSELC);/*enable nand*/ + mfpen |= ENNAND; + } else + mfpen &= (~GPSELC);/*GPIOC[14:0]*/ + + __raw_writel(mfpen, REG_MFSEL); + + up(&mfp_sem); +} +EXPORT_SYMBOL(mfp_set_groupc); + +void mfp_set_groupi(struct device *dev, int gpio) +{ + unsigned long mfpen; + const char *dev_id; + + BUG_ON(!dev); + + down(&mfp_sem); + + dev_id = dev_name(dev); + + mfpen = __raw_readl(REG_MFSEL); + + if (strcmp(dev_id, "w90p910-wdog") == 0) + mfpen |= GPSELEI1;/*enable wdog*/ + else if (strcmp(dev_id, "w90p910-atapi") == 0) + mfpen |= GPSELEI0;/*enable atapi*/ + + __raw_writel(mfpen, REG_MFSEL); + + up(&mfp_sem); +} +EXPORT_SYMBOL(mfp_set_groupi); + |