[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/bsp/lk/platform/am335x/interrupts.c b/src/bsp/lk/platform/am335x/interrupts.c
new file mode 100644
index 0000000..2c5b569
--- /dev/null
+++ b/src/bsp/lk/platform/am335x/interrupts.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2012 Corey Tabaka
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <err.h>
+#include <sys/types.h>
+#include <debug.h>
+#include <reg.h>
+#include <kernel/thread.h>
+#include <platform/interrupts.h>
+#include <platform/am335x.h>
+#include <arch/ops.h>
+#include <arch/arm.h>
+#include "platform_p.h"
+
+#include <soc_AM335x.h>
+#include <interrupt.h>
+
+struct int_handler_struct {
+ int_handler handler;
+ void *arg;
+};
+
+#define NUM_INTS 128
+
+static struct int_handler_struct int_handler_table[NUM_INTS];
+
+void platform_init_interrupts(void)
+{
+ /* Initialize the ARM interrupt control */
+ IntAINTCInit();
+ IntPrioritySet(SYS_INT_TINT2, 0, AINTC_HOSTINT_ROUTE_IRQ);
+}
+
+status_t mask_interrupt(unsigned int vector)
+{
+ if (vector >= NUM_INTS)
+ return ERR_INVALID_ARGS;
+
+// dprintf("%s: vector %d\n", __PRETTY_FUNCTION__, vector);
+
+ spin_lock_saved_state_t statep;
+ arch_interrupt_save(&statep, SPIN_LOCK_FLAG_IRQ);
+
+ IntSystemDisable(vector);
+
+ arch_interrupt_restore(statep, SPIN_LOCK_FLAG_IRQ);
+
+ return NO_ERROR;
+}
+
+status_t unmask_interrupt(unsigned int vector)
+{
+ if (vector >= NUM_INTS)
+ return ERR_INVALID_ARGS;
+
+// dprintf("%s: vector %d\n", __PRETTY_FUNCTION__, vector);
+
+ spin_lock_saved_state_t statep;
+ arch_interrupt_save(&statep, SPIN_LOCK_FLAG_IRQ);
+
+ IntSystemEnable(vector);
+
+ arch_interrupt_restore(statep, SPIN_LOCK_FLAG_IRQ);
+
+ return NO_ERROR;
+}
+
+enum handler_return platform_irq(struct arm_iframe *frame)
+{
+ // get the current vector
+ unsigned int vector = IntActiveIrqNumGet();
+
+ THREAD_STATS_INC(interrupts);
+
+// printf("platform_irq: spsr 0x%x, pc 0x%x, currthread %p, vector %d\n", frame->spsr, frame->pc, current_thread, vector);
+
+ // deliver the interrupt
+ enum handler_return ret;
+
+ ret = INT_NO_RESCHEDULE;
+ if (int_handler_table[vector].handler)
+ ret = int_handler_table[vector].handler(int_handler_table[vector].arg);
+
+ /* enable generation of new IRQ */
+ HWREG(SOC_AINTC_REGS + INTC_CONTROL) = INTC_CONTROL_NEWIRQAGR;
+ DSB; // wait for write to complete
+
+// dprintf("platform_irq: exit %d\n", ret);
+
+ return ret;
+}
+
+void platform_fiq(struct arm_iframe *frame)
+{
+ panic("FIQ: unimplemented\n");
+}
+
+void register_int_handler(unsigned int vector, int_handler handler, void *arg)
+{
+ if (vector >= NUM_INTS)
+ panic("register_int_handler: vector out of range %d\n", vector);
+
+ spin_lock_saved_state_t statep;
+ arch_interrupt_save(&statep, SPIN_LOCK_FLAG_IRQ);
+
+ int_handler_table[vector].handler = handler;
+ int_handler_table[vector].arg = arg;
+
+ arch_interrupt_restore(statep, SPIN_LOCK_FLAG_IRQ);
+}
+