[PATCH] x86-64: Define IGNORE_IOCTL() macro for compat_ioctls

[powerpc.git] / arch / arm / mach-versatile / core.c

diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index dcc2ca3..bf71507 100644 (file)
--- 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>
@@ -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++) {