diff options
Diffstat (limited to 'arch/arm/mach-pxa/include/mach/gpio-pxa.h')
| -rw-r--r-- | arch/arm/mach-pxa/include/mach/gpio-pxa.h | 133 | 
1 files changed, 0 insertions, 133 deletions
diff --git a/arch/arm/mach-pxa/include/mach/gpio-pxa.h b/arch/arm/mach-pxa/include/mach/gpio-pxa.h deleted file mode 100644 index 41b4c93a96c..00000000000 --- a/arch/arm/mach-pxa/include/mach/gpio-pxa.h +++ /dev/null @@ -1,133 +0,0 @@ -/* - * Written by Philipp Zabel <philipp.zabel@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; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ -#ifndef __MACH_PXA_GPIO_PXA_H -#define __MACH_PXA_GPIO_PXA_H - -#include <mach/irqs.h> -#include <mach/hardware.h> - -#define GPIO_REGS_VIRT	io_p2v(0x40E00000) - -#define BANK_OFF(n)	(((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2)) -#define GPIO_REG(x)	(*(volatile u32 *)(GPIO_REGS_VIRT + (x))) - -/* GPIO Pin Level Registers */ -#define GPLR0		GPIO_REG(BANK_OFF(0) + 0x00) -#define GPLR1		GPIO_REG(BANK_OFF(1) + 0x00) -#define GPLR2		GPIO_REG(BANK_OFF(2) + 0x00) -#define GPLR3		GPIO_REG(BANK_OFF(3) + 0x00) - -/* GPIO Pin Direction Registers */ -#define GPDR0		GPIO_REG(BANK_OFF(0) + 0x0c) -#define GPDR1		GPIO_REG(BANK_OFF(1) + 0x0c) -#define GPDR2		GPIO_REG(BANK_OFF(2) + 0x0c) -#define GPDR3		GPIO_REG(BANK_OFF(3) + 0x0c) - -/* GPIO Pin Output Set Registers */ -#define GPSR0		GPIO_REG(BANK_OFF(0) + 0x18) -#define GPSR1		GPIO_REG(BANK_OFF(1) + 0x18) -#define GPSR2		GPIO_REG(BANK_OFF(2) + 0x18) -#define GPSR3		GPIO_REG(BANK_OFF(3) + 0x18) - -/* GPIO Pin Output Clear Registers */ -#define GPCR0		GPIO_REG(BANK_OFF(0) + 0x24) -#define GPCR1		GPIO_REG(BANK_OFF(1) + 0x24) -#define GPCR2		GPIO_REG(BANK_OFF(2) + 0x24) -#define GPCR3		GPIO_REG(BANK_OFF(3) + 0x24) - -/* GPIO Rising Edge Detect Registers */ -#define GRER0		GPIO_REG(BANK_OFF(0) + 0x30) -#define GRER1		GPIO_REG(BANK_OFF(1) + 0x30) -#define GRER2		GPIO_REG(BANK_OFF(2) + 0x30) -#define GRER3		GPIO_REG(BANK_OFF(3) + 0x30) - -/* GPIO Falling Edge Detect Registers */ -#define GFER0		GPIO_REG(BANK_OFF(0) + 0x3c) -#define GFER1		GPIO_REG(BANK_OFF(1) + 0x3c) -#define GFER2		GPIO_REG(BANK_OFF(2) + 0x3c) -#define GFER3		GPIO_REG(BANK_OFF(3) + 0x3c) - -/* GPIO Edge Detect Status Registers */ -#define GEDR0		GPIO_REG(BANK_OFF(0) + 0x48) -#define GEDR1		GPIO_REG(BANK_OFF(1) + 0x48) -#define GEDR2		GPIO_REG(BANK_OFF(2) + 0x48) -#define GEDR3		GPIO_REG(BANK_OFF(3) + 0x48) - -/* GPIO Alternate Function Select Registers */ -#define GAFR0_L		GPIO_REG(0x0054) -#define GAFR0_U		GPIO_REG(0x0058) -#define GAFR1_L		GPIO_REG(0x005C) -#define GAFR1_U		GPIO_REG(0x0060) -#define GAFR2_L		GPIO_REG(0x0064) -#define GAFR2_U		GPIO_REG(0x0068) -#define GAFR3_L		GPIO_REG(0x006C) -#define GAFR3_U		GPIO_REG(0x0070) - -/* More handy macros.  The argument is a literal GPIO number. */ - -#define GPIO_bit(x)	(1 << ((x) & 0x1f)) - -#define GPLR(x)		GPIO_REG(BANK_OFF((x) >> 5) + 0x00) -#define GPDR(x)		GPIO_REG(BANK_OFF((x) >> 5) + 0x0c) -#define GPSR(x)		GPIO_REG(BANK_OFF((x) >> 5) + 0x18) -#define GPCR(x)		GPIO_REG(BANK_OFF((x) >> 5) + 0x24) -#define GRER(x)		GPIO_REG(BANK_OFF((x) >> 5) + 0x30) -#define GFER(x)		GPIO_REG(BANK_OFF((x) >> 5) + 0x3c) -#define GEDR(x)		GPIO_REG(BANK_OFF((x) >> 5) + 0x48) -#define GAFR(x)		GPIO_REG(0x54 + (((x) & 0x70) >> 2)) - - -#define NR_BUILTIN_GPIO		PXA_GPIO_IRQ_NUM - -#define gpio_to_bank(gpio)	((gpio) >> 5) - -#ifdef CONFIG_CPU_PXA26x -/* GPIO86/87/88/89 on PXA26x have their direction bits in GPDR2 inverted, - * as well as their Alternate Function value being '1' for GPIO in GAFRx. - */ -static inline int __gpio_is_inverted(unsigned gpio) -{ -	return cpu_is_pxa25x() && gpio > 85; -} -#else -static inline int __gpio_is_inverted(unsigned gpio) { return 0; } -#endif - -/* - * On PXA25x and PXA27x, GAFRx and GPDRx together decide the alternate - * function of a GPIO, and GPDRx cannot be altered once configured. It - * is attributed as "occupied" here (I know this terminology isn't - * accurate, you are welcome to propose a better one :-) - */ -static inline int __gpio_is_occupied(unsigned gpio) -{ -	if (cpu_is_pxa27x() || cpu_is_pxa25x()) { -		int af = (GAFR(gpio) >> ((gpio & 0xf) * 2)) & 0x3; -		int dir = GPDR(gpio) & GPIO_bit(gpio); - -		if (__gpio_is_inverted(gpio)) -			return af != 1 || dir == 0; -		else -			return af != 0 || dir != 0; -	} else -		return GPDR(gpio) & GPIO_bit(gpio); -} - -#include <plat/gpio-pxa.h> -#endif /* __MACH_PXA_GPIO_PXA_H */  |