From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/arm/mach-w90x900/mfp.c | 200 +++++++++++++++++++++++++++++++++++++ 1 file changed, 200 insertions(+) create mode 100644 kernel/arch/arm/mach-w90x900/mfp.c (limited to 'kernel/arch/arm/mach-w90x900/mfp.c') diff --git a/kernel/arch/arm/mach-w90x900/mfp.c b/kernel/arch/arm/mach-w90x900/mfp.c new file mode 100644 index 000000000..c58d142b8 --- /dev/null +++ b/kernel/arch/arm/mach-w90x900/mfp.c @@ -0,0 +1,200 @@ +/* + * linux/arch/arm/mach-w90x900/mfp.c + * + * Copyright (c) 2008 Nuvoton technology corporation + * + * Wan ZongShun + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#define REG_MFSEL (W90X900_VA_GCR + 0xC) + +#define GPSELF (0x01 << 1) +#define GPSELC (0x03 << 2) +#define GPSELD (0x0f << 4) + +#define GPSELEI0 (0x01 << 26) +#define GPSELEI1 (0x01 << 27) + +#define GPIOG0TO1 (0x03 << 14) +#define GPIOG2TO3 (0x03 << 16) +#define GPIOG22TO23 (0x03 << 22) +#define GPIOG18TO20 (0x07 << 18) + +#define ENSPI (0x0a << 14) +#define ENI2C0 (0x01 << 14) +#define ENI2C1 (0x01 << 16) +#define ENAC97 (0x02 << 22) +#define ENSD1 (0x02 << 18) +#define ENSD0 (0x0a << 4) +#define ENKPI (0x02 << 2) +#define ENNAND (0x01 << 2) + +static DEFINE_MUTEX(mfp_mutex); + +void mfp_set_groupf(struct device *dev) +{ + unsigned long mfpen; + const char *dev_id; + + BUG_ON(!dev); + + mutex_lock(&mfp_mutex); + + dev_id = dev_name(dev); + + mfpen = __raw_readl(REG_MFSEL); + + if (strcmp(dev_id, "nuc900-emc") == 0) + mfpen |= GPSELF;/*enable mac*/ + else + mfpen &= ~GPSELF;/*GPIOF[9:0]*/ + + __raw_writel(mfpen, REG_MFSEL); + + mutex_unlock(&mfp_mutex); +} +EXPORT_SYMBOL(mfp_set_groupf); + +void mfp_set_groupc(struct device *dev) +{ + unsigned long mfpen; + const char *dev_id; + + BUG_ON(!dev); + + mutex_lock(&mfp_mutex); + + dev_id = dev_name(dev); + + mfpen = __raw_readl(REG_MFSEL); + + if (strcmp(dev_id, "nuc900-lcd") == 0) + mfpen |= GPSELC;/*enable lcd*/ + else if (strcmp(dev_id, "nuc900-kpi") == 0) { + mfpen &= (~GPSELC);/*enable kpi*/ + mfpen |= ENKPI; + } else if (strcmp(dev_id, "nuc900-nand") == 0) { + mfpen &= (~GPSELC);/*enable nand*/ + mfpen |= ENNAND; + } else + mfpen &= (~GPSELC);/*GPIOC[14:0]*/ + + __raw_writel(mfpen, REG_MFSEL); + + mutex_unlock(&mfp_mutex); +} +EXPORT_SYMBOL(mfp_set_groupc); + +void mfp_set_groupi(struct device *dev) +{ + unsigned long mfpen; + const char *dev_id; + + BUG_ON(!dev); + + mutex_lock(&mfp_mutex); + + dev_id = dev_name(dev); + + mfpen = __raw_readl(REG_MFSEL); + + mfpen &= ~GPSELEI1;/*default gpio16*/ + + if (strcmp(dev_id, "nuc900-wdog") == 0) + mfpen |= GPSELEI1;/*enable wdog*/ + else if (strcmp(dev_id, "nuc900-atapi") == 0) + mfpen |= GPSELEI0;/*enable atapi*/ + else if (strcmp(dev_id, "nuc900-keypad") == 0) + mfpen &= ~GPSELEI0;/*enable keypad*/ + + __raw_writel(mfpen, REG_MFSEL); + + mutex_unlock(&mfp_mutex); +} +EXPORT_SYMBOL(mfp_set_groupi); + +void mfp_set_groupg(struct device *dev, const char *subname) +{ + unsigned long mfpen; + const char *dev_id; + + BUG_ON((!dev) && (!subname)); + + mutex_lock(&mfp_mutex); + + if (subname != NULL) + dev_id = subname; + else + dev_id = dev_name(dev); + + mfpen = __raw_readl(REG_MFSEL); + + if (strcmp(dev_id, "nuc900-spi") == 0) { + mfpen &= ~(GPIOG0TO1 | GPIOG2TO3); + mfpen |= ENSPI;/*enable spi*/ + } else if (strcmp(dev_id, "nuc900-i2c0") == 0) { + mfpen &= ~(GPIOG0TO1); + mfpen |= ENI2C0;/*enable i2c0*/ + } else if (strcmp(dev_id, "nuc900-i2c1") == 0) { + mfpen &= ~(GPIOG2TO3); + mfpen |= ENI2C1;/*enable i2c1*/ + } else if (strcmp(dev_id, "nuc900-ac97") == 0) { + mfpen &= ~(GPIOG22TO23); + mfpen |= ENAC97;/*enable AC97*/ + } else if (strcmp(dev_id, "nuc900-mmc-port1") == 0) { + mfpen &= ~(GPIOG18TO20); + mfpen |= (ENSD1 | 0x01);/*enable sd1*/ + } else { + mfpen &= ~(GPIOG0TO1 | GPIOG2TO3);/*GPIOG[3:0]*/ + } + + __raw_writel(mfpen, REG_MFSEL); + + mutex_unlock(&mfp_mutex); +} +EXPORT_SYMBOL(mfp_set_groupg); + +void mfp_set_groupd(struct device *dev, const char *subname) +{ + unsigned long mfpen; + const char *dev_id; + + BUG_ON((!dev) && (!subname)); + + mutex_lock(&mfp_mutex); + + if (subname != NULL) + dev_id = subname; + else + dev_id = dev_name(dev); + + mfpen = __raw_readl(REG_MFSEL); + + if (strcmp(dev_id, "nuc900-mmc-port0") == 0) { + mfpen &= ~GPSELD;/*enable sd0*/ + mfpen |= ENSD0; + } else + mfpen &= (~GPSELD); + + __raw_writel(mfpen, REG_MFSEL); + + mutex_unlock(&mfp_mutex); +} +EXPORT_SYMBOL(mfp_set_groupd); -- cgit 1.2.3-korg