[ARM PATCH] 1660/1: misc PXA/Lubbock fixes

Patch from Nicolas Pitre

arch/arm/mach-pxa/irq.c

@@ -58,7 +58,19 @@ static int pxa_gpio_irq_type(unsigned int irq, unsigned int type)
 {
 	int gpio, idx;
 
-	gpio = irq - ((irq >= IRQ_GPIO(2)) ? IRQ_GPIO(2) + 2 : IRQ_GPIO(0));
+	gpio = IRQ_TO_GPIO(irq);
+	idx = gpio >> 5;
+
+	if (type == IRQT_PROBE) {
+	    /* Don't mess with enabled GPIOs using preconfigured edges or
+	       GPIOs set to alternate function during probe */
+		if ((GPIO_IRQ_rising_edge[idx] | GPIO_IRQ_falling_edge[idx]) &
+		    GPIO_bit(gpio))
+			return 0;
+		if (GAFR(gpio) & (0x3 << (((gpio) & 0xf)*2)))
+			return 0;
+		type = __IRQT_RISEDGE | __IRQT_FALEDGE;
+	}
 
 	printk(KERN_DEBUG "IRQ%d (GPIO%d): ", irq, gpio);
 
@@ -78,10 +90,8 @@ static int pxa_gpio_irq_type(unsigned int irq, unsigned int type)
 
 	printk("edges\n");
 
-	idx = gpio >> 5;
 	GRER(gpio) = GPIO_IRQ_rising_edge[idx] & GPIO_IRQ_mask[idx];
 	GFER(gpio) = GPIO_IRQ_falling_edge[idx] & GPIO_IRQ_mask[idx];
-
 	return 0;
 }
 

arch/arm/mach-pxa/lubbock.c

@@ -78,7 +78,7 @@ static void __init lubbock_init_irq(void)
 	pxa_init_irq();
 
 	/* setup extra lubbock irqs */
-	for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_IRQ(5); irq++) {
+	for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
 		set_irq_chip(irq, &lubbock_irq_chip);
 		set_irq_handler(irq, do_level_IRQ);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
@@ -124,6 +124,7 @@ static struct map_desc lubbock_io_desc[] __initdata = {
   { 0xf0000000, 0x08000000, 0x00100000, MT_DEVICE }, /* CPLD */
   { 0xf1000000, 0x0c000000, 0x00100000, MT_DEVICE }, /* LAN91C96 IO */
   { 0xf1100000, 0x0e000000, 0x00100000, MT_DEVICE }, /* LAN91C96 Attr */
+  { 0xf4000000, 0x10000000, 0x00800000, MT_DEVICE }, /* SA1111 */
 };
 
 static void __init lubbock_map_io(void)

include/asm-arm/arch-pxa/irqs.h

@@ -45,7 +45,7 @@
 
 #define IRQ_TO_GPIO_2_80(i)	\
 			((i) - PXA_IRQ(32) + 2)
-#define IRQ_TO_GPIO(i)	((i) - (((i) > IRQ_GPIO1) ? IRQ_GPIO(2) : IRQ_GPIO(0)))
+#define IRQ_TO_GPIO(i)	((i) - (((i) > IRQ_GPIO1) ? IRQ_GPIO(2) - 2 : IRQ_GPIO(0)))
 
 /*
  * The next 16 interrupts are for board specific purposes.  Since
@@ -129,8 +129,10 @@
 #define LUBBOCK_IRQ(x)		(IRQ_BOARD_START + (x))
 #define LUBBOCK_SD_IRQ		LUBBOCK_IRQ(0)
 #define LUBBOCK_SA1111_IRQ	LUBBOCK_IRQ(1)
-#define LUBBOCK_USB_IRQ		LUBBOCK_IRQ(2)
+#define LUBBOCK_USB_IRQ		LUBBOCK_IRQ(2)  /* usb connect */
 #define LUBBOCK_ETH_IRQ		LUBBOCK_IRQ(3)
 #define LUBBOCK_UCB1400_IRQ	LUBBOCK_IRQ(4)
 #define LUBBOCK_BB_IRQ		LUBBOCK_IRQ(5)
+#define LUBBOCK_USB_DISC_IRQ	LUBBOCK_IRQ(6)  /* usb disconnect */
+#define LUBBOCK_LAST_IRQ	LUBBOCK_IRQ(6)
 

include/asm-arm/arch-pxa/lubbock.h

@@ -12,7 +12,8 @@
 
 #define LUBBOCK_FPGA_PHYS	PXA_CS2_PHYS
 #define LUBBOCK_FPGA_VIRT	(0xf0000000)	/* phys 0x08000000 */
-#define LUBBOCK_ETH_BASE	(0xf1000000)	/* phys 0x0c000000 */
+#define LUBBOCK_ETH_PHYS	PXA_CS3_PHYS
+#define LUBBOCK_ETH_VIRT	(0xf1000000)
 
 #define LUB_P2V(x)		((x) - LUBBOCK_FPGA_PHYS + LUBBOCK_FPGA_VIRT)
 #define LUB_V2P(x)		((x) - LUBBOCK_FPGA_VIRT + LUBBOCK_FPGA_PHYS)