1 files changed, 82 insertions, 0 deletions
diff --git a/roms/u-boot-sam460ex/tools/multiplier/utils.c b/roms/u-boot-sam460ex/tools/multiplier/utils.c
new file mode 100644
index 000000000..ef6dd6c15
--- /dev/null
+++ b/roms/u-boot-sam460ex/tools/multiplier/utils.c
@@ -0,0 +1,82 @@
+#include <common.h>
+#include <asm/processor.h>
+#include <linux/ctype.h>
+#include "memio.h"
+
+static __inline__ unsigned long
+get_msr(void)
+{
+	unsigned long msr;
+
+	asm volatile("mfmsr %0" : "=r" (msr) :);
+	return msr;
+}
+
+static __inline__ void
+set_msr(unsigned long msr)
+{
+	asm volatile("mtmsr %0" : : "r" (msr));
+}
+
+static __inline__ unsigned long
+get_dec(void)
+{
+	unsigned long val;
+
+	asm volatile("mfdec %0" : "=r" (val) :);
+	return val;
+}
+
+
+static __inline__ void
+set_dec(unsigned long val)
+{
+	asm volatile("mtdec %0" : : "r" (val));
+}
+
+
+void
+enable_interrupts(void)
+{
+    set_msr (get_msr() | MSR_EE);
+}
+
+/* returns flag if MSR_EE was set before */
+int
+disable_interrupts(void)
+{
+    ulong msr;
+
+    msr = get_msr();
+    set_msr (msr & ~MSR_EE);
+    return ((msr & MSR_EE) != 0);
+}
+
+u8 in8(u32 port)
+{
+    return in_byte(port);
+}
+
+void out8(u32 port, u8 val)
+{
+    out_byte(port, val);
+}
+
+unsigned long in32(u32 port)
+{
+    return in_long(port);
+}
+
+static inline void
+soft_restart(unsigned long addr)
+{
+	/* SRR0 has system reset vector, SRR1 has default MSR value */
+	/* rfi restores MSR from SRR1 and sets the PC to the SRR0 value */
+
+	__asm__ __volatile__ ("mtspr    26, %0"         :: "r" (addr));
+	__asm__ __volatile__ ("li       4, (1 << 6)"    ::: "r4");
+	__asm__ __volatile__ ("mtspr    27, 4");
+	__asm__ __volatile__ ("rfi");
+
+	while(1);       /* not reached */
+}