116 lines
3.2 KiB
C
116 lines
3.2 KiB
C
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/*
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* Copyright (c) 2008, Google Inc.
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* All rights reserved.
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*
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* Copyright (c) 2009-2010, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google, Inc. nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <reg.h>
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#include <debug.h>
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#include <kernel/thread.h>
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#include <platform/debug.h>
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#include <platform/iomap.h>
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#include <mddi.h>
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#include <dev/fbcon.h>
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#include <arch/arm/mmu.h>
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#define MB (1024*1024)
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static struct fbcon_config *fb_config;
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static uint32_t ticks_per_sec = 0;
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void platform_init_interrupts(void);
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void platform_init_timer();
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void uart3_clock_init(void);
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void uart_init(void);
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void acpu_clock_init(void);
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void mddi_clock_init(unsigned num, unsigned rate);
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void platform_early_init(void)
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{
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platform_init_interrupts();
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platform_init_timer();
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}
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void platform_init(void)
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{
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dprintf(INFO, "platform_init()\n");
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acpu_clock_init();
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}
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void display_init(void)
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{
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#if DISPLAY_TYPE_MDDI
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fb_config = mddi_init();
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ASSERT(fb_config);
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fbcon_setup(fb_config);
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#endif
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#if DISPLAY_TYPE_LCDC
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fb_config = lcdc_init();
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ASSERT(fb_config);
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fbcon_setup(fb_config);
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#endif
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}
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/* Setup memory for this platform */
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void platform_init_mmu_mappings(void)
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{
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uint32_t sections = 1152;
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/* Map io mapped peripherals as device non-shared memory */
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while (sections--)
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{
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arm_mmu_map_section(0x88000000 + sections*MB,
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0x88000000 + sections*MB,
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(MMU_MEMORY_TYPE_DEVICE_NON_SHARED |
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MMU_MEMORY_AP_READ_WRITE));
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}
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}
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/* Initialize DGT timer */
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void platform_init_timer(void)
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{
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/* disable timer */
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writel(0, DGT_ENABLE);
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ticks_per_sec = 19200000; /* Uses TCXO (19.2 MHz) */
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}
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/* Returns timer ticks per sec */
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uint32_t platform_tick_rate(void)
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{
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return ticks_per_sec;
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}
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