blob: 5b7354b3ebc13eab1546c7e97e167d13deb74ba0 [file] [log] [blame]
/*
* Copyright (c) 2015, ARM Limited and Contributors. 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 <arch_helpers.h>
#include <arm_def.h>
#include <bl_common.h>
#include <console.h>
#include <platform_def.h>
#include <plat_arm.h>
#include <string.h>
/*
* The next 2 constants identify the extents of the code & RO data region.
* These addresses are used by the MMU setup code and therefore they must be
* page-aligned. It is the responsibility of the linker script to ensure that
* __RO_START__ and __RO_END__ linker symbols refer to page-aligned addresses.
*/
#define BL2U_RO_BASE (unsigned long)(&__RO_START__)
#define BL2U_RO_LIMIT (unsigned long)(&__RO_END__)
#if USE_COHERENT_MEM
/*
* The next 2 constants identify the extents of the coherent memory region.
* These addresses are used by the MMU setup code and therefore they must be
* page-aligned. It is the responsibility of the linker script to ensure that
* __COHERENT_RAM_START__ and __COHERENT_RAM_END__ linker symbols refer to
* page-aligned addresses.
*/
#define BL2U_COHERENT_RAM_BASE (unsigned long)(&__COHERENT_RAM_START__)
#define BL2U_COHERENT_RAM_LIMIT (unsigned long)(&__COHERENT_RAM_END__)
#endif
/* Weak definitions may be overridden in specific ARM standard platform */
#pragma weak bl2u_platform_setup
#pragma weak bl2u_early_platform_setup
#pragma weak bl2u_plat_arch_setup
/*
* Perform ARM standard platform setup for BL2U
*/
void arm_bl2u_platform_setup(void)
{
/* Initialize the secure environment */
plat_arm_security_setup();
}
void bl2u_platform_setup(void)
{
arm_bl2u_platform_setup();
}
void arm_bl2u_early_platform_setup(meminfo_t *mem_layout, void *plat_info)
{
/* Initialize the console to provide early debug support */
console_init(PLAT_ARM_BOOT_UART_BASE, PLAT_ARM_BOOT_UART_CLK_IN_HZ,
ARM_CONSOLE_BAUDRATE);
}
/*******************************************************************************
* BL1 can pass platform dependent information to BL2U in x1.
* In case of ARM CSS platforms x1 contains SCP_BL2U image info.
* In case of ARM FVP platforms x1 is not used.
* In both cases, x0 contains the extents of the memory available to BL2U
******************************************************************************/
void bl2u_early_platform_setup(meminfo_t *mem_layout, void *plat_info)
{
arm_bl2u_early_platform_setup(mem_layout, plat_info);
}
/*******************************************************************************
* Perform the very early platform specific architectural setup here. At the
* moment this is only initializes the mmu in a quick and dirty way.
* The memory that is used by BL2U is only mapped.
******************************************************************************/
void arm_bl2u_plat_arch_setup(void)
{
arm_configure_mmu_el1(BL2U_RO_LIMIT,
BL31_LIMIT,
BL2U_RO_BASE,
BL2U_RO_LIMIT
#if USE_COHERENT_MEM
,
BL2U_COHERENT_RAM_BASE,
BL2U_COHERENT_RAM_LIMIT
#endif
);
}
void bl2u_plat_arch_setup(void)
{
arm_bl2u_plat_arch_setup();
}