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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/arm/mach-mmp/common.c
Initial import
Diffstat (limited to 'arch/arm/mach-mmp/common.c')
-rw-r--r--arch/arm/mach-mmp/common.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/common.c b/arch/arm/mach-mmp/common.c
new file mode 100644
index 000000000..c03b4ab58
--- /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 <mach/addr-map.h>
+#include <mach/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);
+}