MIPS: Add support for Microchip PIC32MZ[DA] SoC family.
Add Microchip PIC32MZ[DA] SoC family support.
Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
diff --git a/arch/mips/mach-pic32/reset.c b/arch/mips/mach-pic32/reset.c
new file mode 100644
index 0000000..66c6833
--- /dev/null
+++ b/arch/mips/mach-pic32/reset.c
@@ -0,0 +1,36 @@
+/*
+ * (c) 2015 Purna Chandra Mandal <purna.mandal@microchip.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <mach/pic32.h>
+
+/* SYSKEY */
+#define UNLOCK_KEY1 0xaa996655
+#define UNLOCK_KEY2 0x556699aa
+#define LOCK_KEY 0
+
+#define RSWRST 0x1250
+
+void _machine_restart(void)
+{
+ void __iomem *base;
+
+ base = pic32_get_syscfg_base();
+
+ /* unlock sequence */
+ writel(LOCK_KEY, base + SYSKEY);
+ writel(UNLOCK_KEY1, base + SYSKEY);
+ writel(UNLOCK_KEY2, base + SYSKEY);
+
+ /* soft reset */
+ writel(0x1, base + RSWRST);
+ (void) readl(base + RSWRST);
+
+ while (1)
+ ;
+}