add new target 'oxnas'

[openwrt.git] / target / linux / oxnas / files / arch / arm / mach-oxnas / include / mach / utils.h

diff --git a/target/linux/oxnas/files/arch/arm/mach-oxnas/include/mach/utils.h b/target/linux/oxnas/files/arch/arm/mach-oxnas/include/mach/utils.h
new file mode 100644 (file)
index 0000000..910d701
--- /dev/null
+++ b/target/linux/oxnas/files/arch/arm/mach-oxnas/include/mach/utils.h
@@ -0,0 +1,34 @@
+#ifndef _NAS782X_UTILS_H
+#define _NAS782X_UTILS_H
+
+#include <linux/io.h>
+#include <mach/hardware.h>
+
+static inline void oxnas_register_clear_mask(void __iomem *p, unsigned mask)
+{
+       u32 val = readl_relaxed(p);
+
+       val &= ~mask;
+       writel_relaxed(val, p);
+}
+
+static inline void oxnas_register_set_mask(void __iomem *p, unsigned mask)
+{
+       u32 val = readl_relaxed(p);
+
+       val |= mask;
+       writel_relaxed(val, p);
+}
+
+static inline void oxnas_register_value_mask(void __iomem *p,
+                                            unsigned mask, unsigned new_value)
+{
+       /* TODO sanity check mask & new_value = new_value */
+       u32 val = readl_relaxed(p);
+
+       val &= ~mask;
+       val |= new_value;
+       writel_relaxed(val, p);
+}
+
+#endif /* _NAS782X_UTILS_H */