X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Farm%2Fmach-versatile%2Fcore.c;h=bf71507c76fd91602d2513c40f19e06a8740e06b;hb=421f028100cbef0ba15086d63cad87fb6e5c3da9;hp=3b8576111c16db0a8a9e425cacfa89e2fd5ac572;hpb=6d03a68e6d5528630955452ec4b768dbde0dc00c;p=powerpc.git

diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index 3b8576111c..bf71507c76 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -27,6 +27,7 @@
 #include <linux/amba/bus.h>
 #include <linux/amba/clcd.h>
 
+#include <asm/cnt32_to_63.h>
 #include <asm/system.h>
 #include <asm/hardware.h>
 #include <asm/io.h>
@@ -77,7 +78,7 @@ static struct irq_chip sic_chip = {
 };
 
 static void
-sic_handle_irq(unsigned int irq, struct irqdesc *desc)
+sic_handle_irq(unsigned int irq, struct irq_desc *desc)
 {
 	unsigned long status = readl(VA_SIC_BASE + SIC_IRQ_STATUS);
 
@@ -123,7 +124,7 @@ void __init versatile_init_irq(void)
 	for (i = IRQ_SIC_START; i <= IRQ_SIC_END; i++) {
 		if ((PIC_MASK & (1 << (i - IRQ_SIC_START))) == 0) {
 			set_irq_chip(i, &sic_chip);
-			set_irq_handler(i, do_level_IRQ);
+			set_irq_handler(i, handle_level_irq);
 			set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
 		}
 	}
@@ -228,14 +229,19 @@ void __init versatile_map_io(void)
 
 /*
  * This is the Versatile sched_clock implementation.  This has
- * a resolution of 41.7ns, and a maximum value of about 179s.
+ * a resolution of 41.7ns, and a maximum value of about 35583 days.
+ *
+ * The return value is guaranteed to be monotonic in that range as
+ * long as there is always less than 89 seconds between successive
+ * calls to this function.
  */
 unsigned long long sched_clock(void)
 {
-	unsigned long long v;
+	unsigned long long v = cnt32_to_63(readl(VERSATILE_REFCOUNTER));
 
-	v = (unsigned long long)readl(VERSATILE_REFCOUNTER) * 125;
-	do_div(v, 3);
+	/* the <<1 gets rid of the cnt_32_to_63 top bit saving on a bic insn */
+	v *= 125<<1;
+	do_div(v, 3<<1);
 
 	return v;
 }
@@ -319,6 +325,19 @@ static struct platform_device smc91x_device = {
 	.resource	= smc91x_resources,
 };
 
+static struct resource versatile_i2c_resource = {
+	.start			= VERSATILE_I2C_BASE,
+	.end			= VERSATILE_I2C_BASE + SZ_4K - 1,
+	.flags			= IORESOURCE_MEM,
+};
+
+static struct platform_device versatile_i2c_device = {
+	.name			= "versatile-i2c",
+	.id			= -1,
+	.num_resources		= 1,
+	.resource		= &versatile_i2c_resource,
+};
+
 #define VERSATILE_SYSMCI	(__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_MCI_OFFSET)
 
 unsigned int mmc_status(struct device *dev)
@@ -769,6 +788,7 @@ void __init versatile_init(void)
 	clk_register(&versatile_clcd_clk);
 
 	platform_device_register(&versatile_flash_device);
+	platform_device_register(&versatile_i2c_device);
 	platform_device_register(&smc91x_device);
 
 	for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {