summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/boot/microwatt.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/boot/microwatt.c')
-rw-r--r--arch/powerpc/boot/microwatt.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/powerpc/boot/microwatt.c b/arch/powerpc/boot/microwatt.c
new file mode 100644
index 000000000..ca9d83617
--- /dev/null
+++ b/arch/powerpc/boot/microwatt.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <stddef.h>
+#include "stdio.h"
+#include "types.h"
+#include "io.h"
+#include "ops.h"
+
+BSS_STACK(8192);
+
+void platform_init(unsigned long r3, unsigned long r4, unsigned long r5)
+{
+ unsigned long heapsize = 16*1024*1024 - (unsigned long)_end;
+
+ /*
+ * Disable interrupts and turn off MSR_RI, since we'll
+ * shortly be overwriting the interrupt vectors.
+ */
+ __asm__ volatile("mtmsrd %0,1" : : "r" (0));
+
+ simple_alloc_init(_end, heapsize, 32, 64);
+ fdt_init(_dtb_start);
+ serial_console_init();
+}