v4.19.13 snapshot.
diff --git a/arch/arm/mach-mmp/common.c b/arch/arm/mach-mmp/common.c
new file mode 100644
index 0000000..685a099
--- /dev/null
+++ b/arch/arm/mach-mmp/common.c
@@ -0,0 +1,53 @@
+/*
+ * linux/arch/arm/mach-mmp/common.c
+ *
+ * Code common to PXA168 processor lines
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <asm/page.h>
+#include <asm/mach/map.h>
+#include <asm/system_misc.h>
+#include "addr-map.h"
+#include "cputype.h"
+
+#include "common.h"
+
+#define MMP_CHIPID (AXI_VIRT_BASE + 0x82c00)
+
+unsigned int mmp_chip_id;
+EXPORT_SYMBOL(mmp_chip_id);
+
+static struct map_desc standard_io_desc[] __initdata = {
+ {
+ .pfn = __phys_to_pfn(APB_PHYS_BASE),
+ .virtual = (unsigned long)APB_VIRT_BASE,
+ .length = APB_PHYS_SIZE,
+ .type = MT_DEVICE,
+ }, {
+ .pfn = __phys_to_pfn(AXI_PHYS_BASE),
+ .virtual = (unsigned long)AXI_VIRT_BASE,
+ .length = AXI_PHYS_SIZE,
+ .type = MT_DEVICE,
+ },
+};
+
+void __init mmp_map_io(void)
+{
+ iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
+
+ /* this is early, initialize mmp_chip_id here */
+ mmp_chip_id = __raw_readl(MMP_CHIPID);
+}
+
+void mmp_restart(enum reboot_mode mode, const char *cmd)
+{
+ soft_restart(0);
+}