M7350/bootable/bootloader/lk/platform/msm8226/platform.c
2024-09-09 08:52:07 +00:00

129 lines
4.0 KiB
C

/* Copyright (c) 2012-2013, 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 The Linux Foundation 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, FITNESS FOR A PARTICULAR PURPOSE AND
* NON-INFRINGEMENT 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>
#include <qtimer.h>
#include <platform/clock.h>
#include <mmu.h>
#include <arch/arm/mmu.h>
#include <smem.h>
#include <board.h>
#define MB (1024*1024)
#define MSM_IOMAP_SIZE ((MSM_IOMAP_END - MSM_IOMAP_BASE)/MB)
/* LK memory - cacheable, write through */
#define LK_MEMORY (MMU_MEMORY_TYPE_NORMAL_WRITE_THROUGH | \
MMU_MEMORY_AP_READ_WRITE)
/* Peripherals - non-shared device */
#define IOMAP_MEMORY (MMU_MEMORY_TYPE_DEVICE_SHARED | \
MMU_MEMORY_AP_READ_WRITE | MMU_MEMORY_XN)
static mmu_section_t mmu_section_table[] = {
/* Physical addr, Virtual addr, Size (in MB), Flags */
{ MEMBASE, MEMBASE, (MEMSIZE / MB), LK_MEMORY},
{ MSM_IOMAP_BASE, MSM_IOMAP_BASE, MSM_IOMAP_SIZE, IOMAP_MEMORY},
};
static struct smem_ram_ptable ram_ptable;
void platform_early_init(void)
{
board_init();
platform_clock_init();
qgic_init();
qtimer_init();
}
void platform_init(void)
{
dprintf(INFO, "platform_init()\n");
}
void platform_uninit(void)
{
qtimer_uninit();
}
/* Setup memory for this platform */
void platform_init_mmu_mappings(void)
{
uint32_t i;
uint32_t sections;
uint32_t table_size = ARRAY_SIZE(mmu_section_table);
ASSERT(smem_ram_ptable_init(&ram_ptable));
/* Configure the MMU page entries for SDRAM and IMEM memory read
from the smem ram table*/
for(i = 0; i < ram_ptable.len; i++)
{
if(ram_ptable.parts[i].type == SYS_MEMORY)
{
if((ram_ptable.parts[i].category == SDRAM) ||
(ram_ptable.parts[i].category == IMEM))
{
/* Check to ensure that start address is 1MB aligned */
ASSERT((ram_ptable.parts[i].start & 0xFFFFF) == 0);
sections = (ram_ptable.parts[i].size) / MB;
while(sections--)
{
arm_mmu_map_section(ram_ptable.parts[i].start +
sections * MB,
ram_ptable.parts[i].start +
sections * MB,
(MMU_MEMORY_TYPE_NORMAL_WRITE_THROUGH | \
MMU_MEMORY_AP_READ_WRITE | MMU_MEMORY_XN));
}
}
}
}
/* Configure the MMU page entries for memory read from the
mmu_section_table */
for (i = 0; i < table_size; i++)
{
sections = mmu_section_table[i].num_of_sections;
while (sections--)
{
arm_mmu_map_section(mmu_section_table[i].paddress +
sections * MB,
mmu_section_table[i].vaddress +
sections * MB,
mmu_section_table[i].flags);
}
}
}