[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/bsp/lk/platform/zynq/timer.c b/src/bsp/lk/platform/zynq/timer.c
new file mode 100644
index 0000000..f983c96
--- /dev/null
+++ b/src/bsp/lk/platform/zynq/timer.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2014 Travis Geiselbrecht
+ *
+ * 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 <debug.h>
+#include <sys/types.h>
+#include <err.h>
+#include <stdio.h>
+#include <assert.h>
+#include <trace.h>
+#include <kernel/thread.h>
+#include <platform.h>
+#include <platform/interrupts.h>
+#include <platform/timer.h>
+#include <platform/zynq.h>
+#include "platform_p.h"
+
+/* unused, arm_cortex_a9_timer does timer duty */
+
+#if 0
+/* driver for Cadence triple timer counter (TTC) */
+
+#define LOCAL_TRACE 0
+
+#define TIMREG(reg) (*REG32(TTC0_BASE + (reg)))
+#define TIMREG16(reg) (*REG16(TTC0_BASE + (reg)))
+#define TIMREG8(reg) (*REG8(TTC0_BASE + (reg)))
+
+#define CLK_CTRL(n) (0x00 + (n) * 4)
+#define CNT_CTRL(n) (0x0c + (n) * 4)
+#define CNT_VAL(n) (0x18 + (n) * 4)
+#define INTERVAL_VAL(n) (0x24 + (n) * 4)
+#define MATCH_1(n) (0x30 + (n) * 4)
+#define MATCH_2(n) (0x3c + (n) * 4)
+#define MATCH_3(n) (0x48 + (n) * 4)
+#define ISR(n) (0x54 + (n) * 4)
+#define IEN(n) (0x60 + (n) * 4)
+#define EVT_CTRL(n) (0x6c + (n) * 4)
+#define EVT(n) (0x78 + (n) * 4)
+
+static platform_timer_callback t_callback;
+
+static volatile uint ticks = 0;
+static lk_time_t periodic_interval;
+
+status_t platform_set_periodic_timer(platform_timer_callback callback, void *arg, lk_time_t interval)
+{
+ enter_critical_section();
+
+ LTRACEF("callback %p, arg %p, interval %lu\n", callback, arg, interval);
+
+ t_callback = callback;
+
+ periodic_interval = interval;
+
+ uint32_t ticks = periodic_interval * 1000; /* timer is running close to 1Mhz */
+ ASSERT(ticks <= 0xffff);
+
+ TIMREG(IEN(0)) = (1<<0); // interval interrupt
+ TIMREG(INTERVAL_VAL(0)) = ticks;
+ TIMREG(CNT_CTRL(0)) = (1<<5) | (1<<4) | (1<<1); // no wave, reset, interval mode
+
+ unmask_interrupt(TTC0_A_INT);
+
+ exit_critical_section();
+
+ return NO_ERROR;
+}
+
+lk_bigtime_t current_time_hires(void)
+{
+ lk_bigtime_t time;
+
+ time = ticks * periodic_interval * 1000ULL;
+
+ return time;
+}
+
+lk_time_t current_time(void)
+{
+ lk_time_t time;
+
+ time = ticks * periodic_interval;
+
+ return time;
+}
+
+static enum handler_return platform_tick(void *arg)
+{
+ ticks++;
+
+ volatile uint32_t hole = TIMREG(ISR(0)); // ack the irq
+
+ if (t_callback) {
+ return t_callback(arg, current_time());
+ } else {
+ return INT_NO_RESCHEDULE;
+ }
+}
+
+void platform_init_timer(void)
+{
+ /* disable timers */
+ TIMREG(CNT_CTRL(0)) = 0x1;
+ TIMREG(CNT_CTRL(1)) = 0x1;
+ TIMREG(CNT_CTRL(2)) = 0x1;
+
+ TIMREG(CLK_CTRL(0)) = (6 << 1) | 1; // prescale 133Mhz/(2^7) == 1039062Hz (close to 1Mhz)
+
+ register_int_handler(TTC0_A_INT, &platform_tick, NULL);
+ register_int_handler(TTC0_B_INT, &platform_tick, NULL);
+ register_int_handler(TTC0_C_INT, &platform_tick, NULL);
+}
+#endif
+
+/* vim: set ts=4 sw=4 expandtab: */