blob: de36efc0af4b575ff6441da4431c82301d06d52c [file] [log] [blame]
/*
* Copyright (c) 2018-2021, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <errno.h>
#include <plat_arm.h>
#include <plat_private.h>
#include <bl31/bl31.h>
#include <common/bl_common.h>
#include <common/debug.h>
#include <drivers/arm/dcc.h>
#include <drivers/arm/pl011.h>
#include <drivers/console.h>
#include <lib/mmio.h>
#include <lib/xlat_tables/xlat_tables.h>
#include <plat/common/platform.h>
#include <versal_def.h>
#include <plat_private.h>
#include <plat_startup.h>
static entry_point_info_t bl32_image_ep_info;
static entry_point_info_t bl33_image_ep_info;
/*
* Return a pointer to the 'entry_point_info' structure of the next image for
* the security state specified. BL33 corresponds to the non-secure image type
* while BL32 corresponds to the secure image type. A NULL pointer is returned
* if the image does not exist.
*/
entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
{
assert(sec_state_is_valid(type));
if (type == NON_SECURE) {
return &bl33_image_ep_info;
}
return &bl32_image_ep_info;
}
/*
* Set the build time defaults,if we can't find any config data.
*/
static inline void bl31_set_default_config(void)
{
bl32_image_ep_info.pc = BL32_BASE;
bl32_image_ep_info.spsr = arm_get_spsr_for_bl32_entry();
bl33_image_ep_info.pc = plat_get_ns_image_entrypoint();
bl33_image_ep_info.spsr = SPSR_64(MODE_EL2, MODE_SP_ELX,
DISABLE_ALL_EXCEPTIONS);
}
/*
* Perform any BL31 specific platform actions. Here is an opportunity to copy
* parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they
* are lost (potentially). This needs to be done before the MMU is initialized
* so that the memory layout can be used while creating page tables.
*/
void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
u_register_t arg2, u_register_t arg3)
{
uint64_t atf_handoff_addr;
if (VERSAL_CONSOLE_IS(pl011)) {
static console_t versal_runtime_console;
/* Initialize the console to provide early debug support */
int rc = console_pl011_register(VERSAL_UART_BASE,
VERSAL_UART_CLOCK,
VERSAL_UART_BAUDRATE,
&versal_runtime_console);
if (rc == 0) {
panic();
}
console_set_scope(&versal_runtime_console, CONSOLE_FLAG_BOOT |
CONSOLE_FLAG_RUNTIME);
} else if (VERSAL_CONSOLE_IS(dcc)) {
/* Initialize the dcc console for debug */
int rc = console_dcc_register();
if (rc == 0) {
panic();
}
}
/* Initialize the platform config for future decision making */
versal_config_setup();
/* There are no parameters from BL2 if BL31 is a reset vector */
assert(arg0 == 0U);
assert(arg1 == 0U);
/*
* Do initial security configuration to allow DRAM/device access. On
* Base VERSAL only DRAM security is programmable (via TrustZone), but
* other platforms might have more programmable security devices
* present.
*/
/* Populate common information for BL32 and BL33 */
SET_PARAM_HEAD(&bl32_image_ep_info, PARAM_EP, VERSION_1, 0);
SET_SECURITY_STATE(bl32_image_ep_info.h.attr, SECURE);
SET_PARAM_HEAD(&bl33_image_ep_info, PARAM_EP, VERSION_1, 0);
SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE);
atf_handoff_addr = mmio_read_32(PMC_GLOBAL_GLOB_GEN_STORAGE4);
enum fsbl_handoff ret = fsbl_atf_handover(&bl32_image_ep_info,
&bl33_image_ep_info,
atf_handoff_addr);
if (ret == FSBL_HANDOFF_NO_STRUCT || ret == FSBL_HANDOFF_INVAL_STRUCT) {
bl31_set_default_config();
} else if (ret != FSBL_HANDOFF_SUCCESS) {
panic();
}
NOTICE("BL31: Secure code at 0x%lx\n", bl32_image_ep_info.pc);
NOTICE("BL31: Non secure code at 0x%lx\n", bl33_image_ep_info.pc);
}
void bl31_platform_setup(void)
{
/* Initialize the gic cpu and distributor interfaces */
plat_versal_gic_driver_init();
plat_versal_gic_init();
}
void bl31_plat_runtime_setup(void)
{
}
/*
* Perform the very early platform specific architectural setup here.
*/
void bl31_plat_arch_setup(void)
{
plat_arm_interconnect_init();
plat_arm_interconnect_enter_coherency();
const mmap_region_t bl_regions[] = {
MAP_REGION_FLAT(BL31_BASE, BL31_END - BL31_BASE,
MT_MEMORY | MT_RW | MT_SECURE),
MAP_REGION_FLAT(BL_CODE_BASE, BL_CODE_END - BL_CODE_BASE,
MT_CODE | MT_SECURE),
MAP_REGION_FLAT(BL_RO_DATA_BASE, BL_RO_DATA_END - BL_RO_DATA_BASE,
MT_RO_DATA | MT_SECURE),
MAP_REGION_FLAT(BL_COHERENT_RAM_BASE,
BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE,
MT_DEVICE | MT_RW | MT_SECURE),
{0}
};
setup_page_tables(bl_regions, plat_versal_get_mmap());
enable_mmu_el3(0);
}