arm: bcmcygnus: Add bcmcygnus u-architecture

Base support for the Broadcom Cygnus SoC.
Based on iproc-common and the SoC specific reset function.

Signed-off-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Steve Rae <srae@broadcom.com>

diff --git a/arch/arm/cpu/armv7/bcmcygnus/Makefile b/arch/arm/cpu/armv7/bcmcygnus/Makefile
new file mode 100644 (file)
index 0000000..04afcf9
--- /dev/null
+++ b/arch/arm/cpu/armv7/bcmcygnus/Makefile
@@ -0,0 +1,7 @@
+#
+# Copyright 2014 Broadcom Corporation.
+#
+# SPDX-License-Identifier:     GPL-2.0+
+#
+
+obj-y  += reset.o

diff --git a/arch/arm/cpu/armv7/bcmcygnus/reset.c b/arch/arm/cpu/armv7/bcmcygnus/reset.c
new file mode 100644 (file)
index 0000000..53ecc0c
--- /dev/null
+++ b/arch/arm/cpu/armv7/bcmcygnus/reset.c
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2014 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+
+#define CRMU_MAIL_BOX1         0x03024028
+#define CRMU_SOFT_RESET_CMD    0xFFFFFFFF
+
+void reset_cpu(ulong ignored)
+{
+       /* Send soft reset command via Mailbox. */
+       writel(CRMU_SOFT_RESET_CMD, CRMU_MAIL_BOX1);
+
+       while (1)
+               ;       /* loop forever till reset */
+}