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/*
* Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <common/bl_common.h>
#include <common/debug.h>
#include "ls_16550.h"
#include "plat_ls.h"
/* Data structure which holds the extents of the trusted SRAM for BL1*/
static meminfo_t bl1_tzram_layout;
meminfo_t *bl1_plat_sec_mem_layout(void)
{
return &bl1_tzram_layout;
}
/*******************************************************************************
* BL1 specific platform actions shared between ARM standard platforms.
******************************************************************************/
void ls_bl1_early_platform_setup(void)
{
static console_ls_16550_t console;
#if !LS1043_DISABLE_TRUSTED_WDOG
/* TODO: Enable watchdog */
#endif
/* Initialize the console to provide early debug support */
console_ls_16550_register(LS_TF_UART_BASE, LS_TF_UART_CLOCK,
LS_TF_UART_BAUDRATE, &console);
/* Allow BL1 to see the whole Trusted RAM */
bl1_tzram_layout.total_base = LS_SRAM_BASE;
bl1_tzram_layout.total_size = LS_SRAM_SIZE;
}
/******************************************************************************
* Perform the very early platform specific architecture setup shared between
* ARM standard platforms. This only does basic initialization. Later
* architectural setup (bl1_arch_setup()) does not do anything platform
* specific.
*****************************************************************************/
void ls_bl1_plat_arch_setup(void)
{
ls_setup_page_tables(bl1_tzram_layout.total_base,
bl1_tzram_layout.total_size,
BL_CODE_BASE,
BL1_CODE_END,
BL1_RO_DATA_BASE,
BL1_RO_DATA_END
#if USE_COHERENT_MEM
, BL_COHERENT_RAM_BASE,
BL_COHERENT_RAM_END
#endif
);
VERBOSE("After setup the page tables\n");
#ifdef __aarch64__
enable_mmu_el3(0);
#else
enable_mmu_svc_mon(0);
#endif /* __aarch64__ */
VERBOSE("After MMU enabled\n");
}
void bl1_plat_arch_setup(void)
{
ls_bl1_plat_arch_setup();
}
/*
* Perform the platform specific architecture setup shared between
* ARM standard platforms.
*/
void ls_bl1_platform_setup(void)
{
/* Initialise the IO layer and register platform IO devices */
plat_ls_io_setup();
}
void bl1_plat_prepare_exit(entry_point_info_t *ep_info)
{
#if !LS1043_DISABLE_TRUSTED_WDOG
/*TODO: Disable watchdog before leaving BL1 */
#endif
}