[ARM] pxa: move GPIO register definitions into <mach/gpio.h>

This makes gpio.c fully independent of pxa-regs.h (except for the virtual address of the registers). Signed-off-by: Mike Rapoport <[email protected]> Signed-off-by: Eric Miao <[email protected]>
adn770 · Mar 9, 2009 · da065a0 · da065a0
1 parent 0d9f768
commit da065a0
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Showing 9 changed files with 83 additions and 87 deletions.
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c
@@ -26,8 +26,8 @@
 #include <asm/mach/map.h>
 #include <asm/mach-types.h>
 
-#include <mach/pxa-regs.h>
 #include <mach/reset.h>
+#include <mach/gpio.h>
 #include <mach/pxa2xx-gpio.h>
 
 #include "generic.h"

diff --git a/arch/arm/mach-pxa/gpio.c b/arch/arm/mach-pxa/gpio.c
@@ -18,16 +18,12 @@
 #include <linux/sysdev.h>
 #include <linux/io.h>
 
-#include <asm/gpio.h>
-#include <mach/hardware.h>
-#include <mach/pxa-regs.h>
+#include <mach/gpio.h>
 
-#include "generic.h"
-
-#define GPIO0_BASE	((void __iomem *)io_p2v(0x40E00000))
-#define GPIO1_BASE	((void __iomem *)io_p2v(0x40E00004))
-#define GPIO2_BASE	((void __iomem *)io_p2v(0x40E00008))
-#define GPIO3_BASE	((void __iomem *)io_p2v(0x40E00100))
+#define GPIO0_BASE	(GPIO_REGS_VIRT + 0x0000)
+#define GPIO1_BASE	(GPIO_REGS_VIRT + 0x0004)
+#define GPIO2_BASE	(GPIO_REGS_VIRT + 0x0008)
+#define GPIO3_BASE	(GPIO_REGS_VIRT + 0x0100)
 
 #define GPLR_OFFSET	0x00
 #define GPDR_OFFSET	0x0C

diff --git a/arch/arm/mach-pxa/include/mach/gpio.h b/arch/arm/mach-pxa/include/mach/gpio.h
@@ -24,12 +24,80 @@
 #ifndef __ASM_ARCH_PXA_GPIO_H
 #define __ASM_ARCH_PXA_GPIO_H
 
-#include <mach/pxa-regs.h>
-#include <asm/irq.h>
+#include <mach/irqs.h>
 #include <mach/hardware.h>
-
 #include <asm-generic/gpio.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))
+
 
 /* NOTE: some PXAs have fewer on-chip GPIOs (like PXA255, with 85).
  * Those cases currently cause holes in the GPIO number space.

diff --git a/arch/arm/mach-pxa/include/mach/pxa-regs.h b/arch/arm/mach-pxa/include/mach/pxa-regs.h
@@ -129,76 +129,4 @@
 #define ICFP2		__REG(0x40D000A8)  /* Interrupt Controller FIQ Pending Register 2 */
 #define ICPR2		__REG(0x40D000AC)  /* Interrupt Controller Pending Register 2 */
 
-/*
- * General Purpose I/O
- */
-
-#define GPLR0		__REG(0x40E00000)  /* GPIO Pin-Level Register GPIO<31:0> */
-#define GPLR1		__REG(0x40E00004)  /* GPIO Pin-Level Register GPIO<63:32> */
-#define GPLR2		__REG(0x40E00008)  /* GPIO Pin-Level Register GPIO<80:64> */
-
-#define GPDR0		__REG(0x40E0000C)  /* GPIO Pin Direction Register GPIO<31:0> */
-#define GPDR1		__REG(0x40E00010)  /* GPIO Pin Direction Register GPIO<63:32> */
-#define GPDR2		__REG(0x40E00014)  /* GPIO Pin Direction Register GPIO<80:64> */
-
-#define GPSR0		__REG(0x40E00018)  /* GPIO Pin Output Set Register GPIO<31:0> */
-#define GPSR1		__REG(0x40E0001C)  /* GPIO Pin Output Set Register GPIO<63:32> */
-#define GPSR2		__REG(0x40E00020)  /* GPIO Pin Output Set Register GPIO<80:64> */
-
-#define GPCR0		__REG(0x40E00024)  /* GPIO Pin Output Clear Register GPIO<31:0> */
-#define GPCR1		__REG(0x40E00028)  /* GPIO Pin Output Clear Register GPIO <63:32> */
-#define GPCR2		__REG(0x40E0002C)  /* GPIO Pin Output Clear Register GPIO <80:64> */
-
-#define GRER0		__REG(0x40E00030)  /* GPIO Rising-Edge Detect Register GPIO<31:0> */
-#define GRER1		__REG(0x40E00034)  /* GPIO Rising-Edge Detect Register GPIO<63:32> */
-#define GRER2		__REG(0x40E00038)  /* GPIO Rising-Edge Detect Register GPIO<80:64> */
-
-#define GFER0		__REG(0x40E0003C)  /* GPIO Falling-Edge Detect Register GPIO<31:0> */
-#define GFER1		__REG(0x40E00040)  /* GPIO Falling-Edge Detect Register GPIO<63:32> */
-#define GFER2		__REG(0x40E00044)  /* GPIO Falling-Edge Detect Register GPIO<80:64> */
-
-#define GEDR0		__REG(0x40E00048)  /* GPIO Edge Detect Status Register GPIO<31:0> */
-#define GEDR1		__REG(0x40E0004C)  /* GPIO Edge Detect Status Register GPIO<63:32> */
-#define GEDR2		__REG(0x40E00050)  /* GPIO Edge Detect Status Register GPIO<80:64> */
-
-#define GAFR0_L		__REG(0x40E00054)  /* GPIO Alternate Function Select Register GPIO<15:0> */
-#define GAFR0_U		__REG(0x40E00058)  /* GPIO Alternate Function Select Register GPIO<31:16> */
-#define GAFR1_L		__REG(0x40E0005C)  /* GPIO Alternate Function Select Register GPIO<47:32> */
-#define GAFR1_U		__REG(0x40E00060)  /* GPIO Alternate Function Select Register GPIO<63:48> */
-#define GAFR2_L		__REG(0x40E00064)  /* GPIO Alternate Function Select Register GPIO<79:64> */
-#define GAFR2_U		__REG(0x40E00068)  /* GPIO Alternate Function Select Register GPIO<95-80> */
-#define GAFR3_L		__REG(0x40E0006C)  /* GPIO Alternate Function Select Register GPIO<111:96> */
-#define GAFR3_U		__REG(0x40E00070)  /* GPIO Alternate Function Select Register GPIO<127:112> */
-
-#define GPLR3		__REG(0x40E00100)  /* GPIO Pin-Level Register GPIO<127:96> */
-#define GPDR3		__REG(0x40E0010C)  /* GPIO Pin Direction Register GPIO<127:96> */
-#define GPSR3		__REG(0x40E00118)  /* GPIO Pin Output Set Register GPIO<127:96> */
-#define GPCR3		__REG(0x40E00124)  /* GPIO Pin Output Clear Register GPIO<127:96> */
-#define GRER3		__REG(0x40E00130)  /* GPIO Rising-Edge Detect Register GPIO<127:96> */
-#define GFER3		__REG(0x40E0013C)  /* GPIO Falling-Edge Detect Register GPIO<127:96> */
-#define GEDR3		__REG(0x40E00148)  /* GPIO Edge Detect Status Register GPIO<127:96> */
-
-/* More handy macros.  The argument is a literal GPIO number. */
-
-#define GPIO_bit(x)	(1 << ((x) & 0x1f))
-
-#define _GPLR(x)	__REG2(0x40E00000, ((x) & 0x60) >> 3)
-#define _GPDR(x)	__REG2(0x40E0000C, ((x) & 0x60) >> 3)
-#define _GPSR(x)	__REG2(0x40E00018, ((x) & 0x60) >> 3)
-#define _GPCR(x)	__REG2(0x40E00024, ((x) & 0x60) >> 3)
-#define _GRER(x)	__REG2(0x40E00030, ((x) & 0x60) >> 3)
-#define _GFER(x)	__REG2(0x40E0003C, ((x) & 0x60) >> 3)
-#define _GEDR(x)	__REG2(0x40E00048, ((x) & 0x60) >> 3)
-#define _GAFR(x)	__REG2(0x40E00054, ((x) & 0x70) >> 2)
-
-#define GPLR(x) 	(*((((x) & 0x7f) < 96) ? &_GPLR(x) : &GPLR3))
-#define GPDR(x)		(*((((x) & 0x7f) < 96) ? &_GPDR(x) : &GPDR3))
-#define GPSR(x)		(*((((x) & 0x7f) < 96) ? &_GPSR(x) : &GPSR3))
-#define GPCR(x)		(*((((x) & 0x7f) < 96) ? &_GPCR(x) : &GPCR3))
-#define GRER(x)		(*((((x) & 0x7f) < 96) ? &_GRER(x) : &GRER3))
-#define GFER(x)		(*((((x) & 0x7f) < 96) ? &_GFER(x) : &GFER3))
-#define GEDR(x)		(*((((x) & 0x7f) < 96) ? &_GEDR(x) : &GEDR3))
-#define GAFR(x)		(*((((x) & 0x7f) < 96) ? &_GAFR(x) : \
-			 ((((x) & 0x7f) < 112) ? &GAFR3_L : &GAFR3_U)))
-
 #endif
diff --git a/arch/arm/mach-pxa/include/mach/pxa2xx-gpio.h b/arch/arm/mach-pxa/include/mach/pxa2xx-gpio.h
@@ -3,6 +3,8 @@
 
 #warning Please use mfp-pxa2[57]x.h instead of pxa2xx-gpio.h
 
+#include <mach/gpio.h>
+
 /* GPIO alternate function assignments */
 
 #define GPIO1_RST		1	/* reset */

diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
@@ -39,6 +39,7 @@
 #include <asm/mach/flash.h>
 
 #include <mach/pxa27x.h>
+#include <mach/gpio.h>
 #include <mach/lpd270.h>
 #include <mach/audio.h>
 #include <mach/pxafb.h>

diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
@@ -42,6 +42,7 @@
 #include <asm/hardware/sa1111.h>
 
 #include <mach/pxa25x.h>
+#include <mach/gpio.h>
 #include <mach/audio.h>
 #include <mach/lubbock.h>
 #include <mach/udc.h>

diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
@@ -42,6 +42,7 @@
 #include <asm/mach/flash.h>
 
 #include <mach/pxa27x.h>
+#include <mach/gpio.h>
 #include <mach/mainstone.h>
 #include <mach/audio.h>
 #include <mach/pxafb.h>

diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.c b/arch/arm/mach-pxa/mfp-pxa2xx.c
@@ -18,8 +18,7 @@
 #include <linux/init.h>
 #include <linux/sysdev.h>
 
-#include <mach/hardware.h>
-#include <mach/pxa-regs.h>
+#include <mach/gpio.h>
 #include <mach/pxa2xx-regs.h>
 #include <mach/mfp-pxa2xx.h>