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-rw-r--r--kernel/arch/arm/mach-sunxi/sunxi.c85
1 files changed, 85 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-sunxi/sunxi.c b/kernel/arch/arm/mach-sunxi/sunxi.c
new file mode 100644
index 000000000..1bc811a74
--- /dev/null
+++ b/kernel/arch/arm/mach-sunxi/sunxi.c
@@ -0,0 +1,85 @@
+/*
+ * Device Tree support for Allwinner A1X SoCs
+ *
+ * Copyright (C) 2012 Maxime Ripard
+ *
+ * Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clocksource.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach/arch.h>
+
+static void __init sunxi_dt_cpufreq_init(void)
+{
+ platform_device_register_simple("cpufreq-dt", -1, NULL, 0);
+}
+
+static const char * const sunxi_board_dt_compat[] = {
+ "allwinner,sun4i-a10",
+ "allwinner,sun5i-a10s",
+ "allwinner,sun5i-a13",
+ NULL,
+};
+
+DT_MACHINE_START(SUNXI_DT, "Allwinner A1X (Device Tree)")
+ .dt_compat = sunxi_board_dt_compat,
+ .init_late = sunxi_dt_cpufreq_init,
+MACHINE_END
+
+static const char * const sun6i_board_dt_compat[] = {
+ "allwinner,sun6i-a31",
+ "allwinner,sun6i-a31s",
+ NULL,
+};
+
+extern void __init sun6i_reset_init(void);
+static void __init sun6i_timer_init(void)
+{
+ of_clk_init(NULL);
+ if (IS_ENABLED(CONFIG_RESET_CONTROLLER))
+ sun6i_reset_init();
+ clocksource_of_init();
+}
+
+DT_MACHINE_START(SUN6I_DT, "Allwinner sun6i (A31) Family")
+ .init_time = sun6i_timer_init,
+ .dt_compat = sun6i_board_dt_compat,
+ .init_late = sunxi_dt_cpufreq_init,
+MACHINE_END
+
+static const char * const sun7i_board_dt_compat[] = {
+ "allwinner,sun7i-a20",
+ NULL,
+};
+
+DT_MACHINE_START(SUN7I_DT, "Allwinner sun7i (A20) Family")
+ .dt_compat = sun7i_board_dt_compat,
+ .init_late = sunxi_dt_cpufreq_init,
+MACHINE_END
+
+static const char * const sun8i_board_dt_compat[] = {
+ "allwinner,sun8i-a23",
+ NULL,
+};
+
+DT_MACHINE_START(SUN8I_DT, "Allwinner sun8i (A23) Family")
+ .dt_compat = sun8i_board_dt_compat,
+ .init_late = sunxi_dt_cpufreq_init,
+MACHINE_END
+
+static const char * const sun9i_board_dt_compat[] = {
+ "allwinner,sun9i-a80",
+ NULL,
+};
+
+DT_MACHINE_START(SUN9I_DT, "Allwinner sun9i Family")
+ .dt_compat = sun9i_board_dt_compat,
+MACHINE_END