Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / arm / mach-sunxi / sunxi.c

diff --git a/kernel/arch/arm/mach-sunxi/sunxi.c b/kernel/arch/arm/mach-sunxi/sunxi.c
new file mode 100644 (file)
index 0000000..1bc811a
--- /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