[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/arm/mach-footbridge/ebsa285.c b/src/kernel/linux/v4.14/arch/arm/mach-footbridge/ebsa285.c
new file mode 100644
index 0000000..21cf9a3
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/arm/mach-footbridge/ebsa285.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * linux/arch/arm/mach-footbridge/ebsa285.c
+ *
+ * EBSA285 machine fixup
+ */
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/spinlock.h>
+#include <linux/slab.h>
+#include <linux/leds.h>
+
+#include <asm/hardware/dec21285.h>
+#include <asm/mach-types.h>
+
+#include <asm/mach/arch.h>
+
+#include "common.h"
+
+/* LEDs */
+#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
+#define XBUS_AMBER_L BIT(0)
+#define XBUS_GREEN_L BIT(1)
+#define XBUS_RED_L BIT(2)
+#define XBUS_TOGGLE BIT(7)
+
+struct ebsa285_led {
+ struct led_classdev cdev;
+ u8 mask;
+};
+
+/*
+ * The triggers lines up below will only be used if the
+ * LED triggers are compiled in.
+ */
+static const struct {
+ const char *name;
+ const char *trigger;
+} ebsa285_leds[] = {
+ { "ebsa285:amber", "cpu0", },
+ { "ebsa285:green", "heartbeat", },
+ { "ebsa285:red",},
+};
+
+static unsigned char hw_led_state;
+static void __iomem *xbus;
+
+static void ebsa285_led_set(struct led_classdev *cdev,
+ enum led_brightness b)
+{
+ struct ebsa285_led *led = container_of(cdev,
+ struct ebsa285_led, cdev);
+
+ if (b == LED_OFF)
+ hw_led_state |= led->mask;
+ else
+ hw_led_state &= ~led->mask;
+ writeb(hw_led_state, xbus);
+}
+
+static enum led_brightness ebsa285_led_get(struct led_classdev *cdev)
+{
+ struct ebsa285_led *led = container_of(cdev,
+ struct ebsa285_led, cdev);
+
+ return hw_led_state & led->mask ? LED_OFF : LED_FULL;
+}
+
+static int __init ebsa285_leds_init(void)
+{
+ int i;
+
+ if (!machine_is_ebsa285())
+ return -ENODEV;
+
+ xbus = ioremap(XBUS_CS2, SZ_4K);
+ if (!xbus)
+ return -ENOMEM;
+
+ /* 3 LEDS all off */
+ hw_led_state = XBUS_AMBER_L | XBUS_GREEN_L | XBUS_RED_L;
+ writeb(hw_led_state, xbus);
+
+ for (i = 0; i < ARRAY_SIZE(ebsa285_leds); i++) {
+ struct ebsa285_led *led;
+
+ led = kzalloc(sizeof(*led), GFP_KERNEL);
+ if (!led)
+ break;
+
+ led->cdev.name = ebsa285_leds[i].name;
+ led->cdev.brightness_set = ebsa285_led_set;
+ led->cdev.brightness_get = ebsa285_led_get;
+ led->cdev.default_trigger = ebsa285_leds[i].trigger;
+ led->mask = BIT(i);
+
+ if (led_classdev_register(NULL, &led->cdev) < 0) {
+ kfree(led);
+ break;
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * Since we may have triggers on any subsystem, defer registration
+ * until after subsystem_init.
+ */
+fs_initcall(ebsa285_leds_init);
+#endif
+
+MACHINE_START(EBSA285, "EBSA285")
+ /* Maintainer: Russell King */
+ .atag_offset = 0x100,
+ .video_start = 0x000a0000,
+ .video_end = 0x000bffff,
+ .map_io = footbridge_map_io,
+ .init_early = footbridge_sched_clock,
+ .init_irq = footbridge_init_irq,
+ .init_time = footbridge_timer_init,
+ .restart = footbridge_restart,
+MACHINE_END
+