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-rw-r--r--platform/zynq/timer.c132
1 files changed, 0 insertions, 132 deletions
diff --git a/platform/zynq/timer.c b/platform/zynq/timer.c
deleted file mode 100644
index 17c1359f..00000000
--- a/platform/zynq/timer.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * 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