| /* |
| * Copyright (c) 2008, Google Inc. |
| * All rights reserved. |
| * |
| * Copyright (c) 2009-2011, The Linux Foundation. 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 <reg.h> |
| #include <debug.h> |
| #include <kernel/thread.h> |
| #include <platform/debug.h> |
| #include <platform/iomap.h> |
| #include <smem.h> |
| #include <qgic.h> |
| |
| static uint32_t ticks_per_sec = 0; |
| |
| extern void platform_uninit_timer(void); |
| |
| void platform_init_timer(); |
| |
| void platform_early_init(void) |
| { |
| uint8_t cfg_bid = 0x1; |
| uint8_t cfg_pid = 0x1; |
| uint8_t gsbi_id = target_uart_gsbi(); |
| |
| uart_dm_init(gsbi_id, GSBI_BASE(gsbi_id), GSBI_UART_DM_BASE(gsbi_id)); |
| |
| /* Timers - QGIC Config */ |
| writel((cfg_bid << 7 | cfg_pid << 10), APCS_GLB_QGIC_CFG); |
| qgic_init(); |
| platform_init_timer(); |
| } |
| |
| void platform_init(void) |
| { |
| dprintf(INFO, "platform_init()\n"); |
| acpu_clock_init(); |
| } |
| |
| void platform_uninit(void) |
| { |
| platform_uninit_timer(); |
| } |
| |
| /* Initialize DGT timer */ |
| void platform_init_timer(void) |
| { |
| /* disable timer */ |
| writel(0, DGT_ENABLE); |
| |
| ticks_per_sec = 19200000; /* Uses CXO (19.2 MHz) */ |
| } |
| |
| /* Returns timer ticks per sec */ |
| uint32_t platform_tick_rate(void) |
| { |
| return ticks_per_sec; |
| } |