Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / arm / cpu / armv7 / bcm281xx / reset.c

diff --git a/qemu/roms/u-boot/arch/arm/cpu/armv7/bcm281xx/reset.c b/qemu/roms/u-boot/arch/arm/cpu/armv7/bcm281xx/reset.c
new file mode 100644 (file)
index 0000000..3beb0ed
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arm/cpu/armv7/bcm281xx/reset.c
@@ -0,0 +1,27 @@
+/*
+ * Copyright 2013 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:      GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/sysmap.h>
+
+#define EN_MASK                0x08000000      /* Enable timer */
+#define SRSTEN_MASK    0x04000000      /* Enable soft reset */
+#define CLKS_SHIFT     20              /* Clock period shift */
+#define LD_SHIFT       0               /* Reload value shift */
+
+void reset_cpu(ulong ignored)
+{
+       /*
+        * Set WD enable, RST enable,
+        * 3.9 msec clock period (8), reload value (8*3.9ms)
+        */
+       u32 reg = EN_MASK + SRSTEN_MASK + (8 << CLKS_SHIFT) + (8 << LD_SHIFT);
+       writel(reg, SECWD2_BASE_ADDR);
+
+       while (1)
+               ;       /* loop forever till reset */
+}