You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
95 lines
3.1 KiB
95 lines
3.1 KiB
11 years ago
|
/*
|
||
|
|
* Copyright (c) 2013, ARM Limited. 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 ARM 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 HOLDER 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 <bl_common.h>
|
||
|
|
|
||
|
|
|
||
|
|
.globl bl2_entrypoint
|
||
|
|
|
||
|
|
|
||
|
|
.section entry_code, "ax"; .align 3
|
||
|
|
|
||
|
|
|
||
|
|
bl2_entrypoint:; .type bl2_entrypoint, %function
|
||
|
|
/*---------------------------------------------
|
||
|
|
* Store the extents of the tzram available to
|
||
|
|
* BL2 for future use. Use the opcode param to
|
||
|
|
* allow implement other functions if needed.
|
||
|
|
* ---------------------------------------------
|
||
|
|
*/
|
||
|
|
mov x20, x0
|
||
|
|
mov x21, x1
|
||
|
|
mov x22, x2
|
||
|
|
|
||
|
|
/* ---------------------------------------------
|
||
|
|
* This is BL2 which is expected to be executed
|
||
|
|
* only by the primary cpu (at least for now).
|
||
|
|
* So, make sure no secondary has lost its way.
|
||
|
|
* ---------------------------------------------
|
||
|
|
*/
|
||
|
|
bl read_mpidr
|
||
|
|
mov x19, x0
|
||
|
|
bl platform_is_primary_cpu
|
||
|
|
cbz x0, _panic
|
||
|
|
|
||
|
|
/* --------------------------------------------
|
||
|
|
* Give ourselves a small coherent stack to
|
||
|
|
* ease the pain of initializing the MMU
|
||
|
|
* --------------------------------------------
|
||
|
|
*/
|
||
|
|
mov x0, x19
|
||
|
|
bl platform_set_coherent_stack
|
||
|
|
|
||
|
|
/* ---------------------------------------------
|
||
|
|
* Perform early platform setup & platform
|
||
|
|
* specific early arch. setup e.g. mmu setup
|
||
|
|
* ---------------------------------------------
|
||
|
|
*/
|
||
|
|
mov x0, x21
|
||
|
|
mov x1, x22
|
||
|
|
bl bl2_early_platform_setup
|
||
|
|
bl bl2_plat_arch_setup
|
||
|
|
|
||
|
|
/* ---------------------------------------------
|
||
|
|
* Give ourselves a stack allocated in Normal
|
||
|
|
* -IS-WBWA memory
|
||
|
|
* ---------------------------------------------
|
||
|
|
*/
|
||
|
|
mov x0, x19
|
||
|
|
bl platform_set_stack
|
||
|
|
|
||
|
|
/* ---------------------------------------------
|
||
|
|
* Jump to main function.
|
||
|
|
* ---------------------------------------------
|
||
|
|
*/
|
||
|
|
bl bl2_main
|
||
|
|
_panic:
|
||
|
|
b _panic
|