| /* |
| * Copyright (c) 2012, Code Aurora Forum. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google, Inc. nor the names of its contributors |
| * may be used to endorse or promote products derived from this |
| * software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #include <debug.h> |
| #include <reg.h> |
| #include <platform/iomap.h> |
| #include <qgic.h> |
| |
| static void platform_init_timer(void); |
| |
| static uint32_t ticks_per_sec = 0; |
| |
| #define MB (1024*1024) |
| |
| void platform_early_init(void) |
| { |
| qgic_init(); |
| platform_init_timer(); |
| } |
| |
| void platform_init(void) |
| { |
| dprintf(INFO, "platform_init()\n"); |
| } |
| |
| void platform_uninit(void) |
| { |
| } |
| |
| /* Initialize Qtimer */ |
| static void platform_init_timer(void) |
| { |
| uint32_t freq; |
| |
| /* program the Global counter frequency to 19.2 MHz |
| * Currently, this is the only frequency allowed. |
| * and this routine is a no-op since the simulation |
| * has already set to this frequency. |
| */ |
| freq = (192*1000*100); |
| |
| __asm__("mcr p15, 0, %0, c14, c0, 0" : : "r" (freq)); |
| |
| ticks_per_sec = 192*1000*100; |
| } |
| |
| /* Returns timer ticks per sec */ |
| uint32_t platform_tick_rate(void) |
| { |
| return ticks_per_sec; |
| } |