plat/aspeed/ast2700/plat_bl31_setup.c

/*
 * Copyright (c) 2023, Aspeed Technology Inc.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <arch.h>
#include <common/debug.h>
#include <common/desc_image_load.h>
#include <drivers/arm/gicv3.h>
#include <drivers/console.h>
#include <drivers/ti/uart/uart_16550.h>
#include <lib/mmio.h>
#include <lib/xlat_tables/xlat_tables_v2.h>
#include <plat/common/platform.h>
#include <platform_def.h>

static console_t console;

static entry_point_info_t bl32_ep_info;
static entry_point_info_t bl33_ep_info;

static uintptr_t rdistif_base_addrs[PLATFORM_CORE_COUNT];

static unsigned int plat_mpidr_to_core_pos(u_register_t mpidr)
{
	/* to workaround the return type mismatch */
	return plat_core_pos_by_mpidr(mpidr);
}

static const gicv3_driver_data_t plat_gic_data = {
	.gicd_base = GICD_BASE,
	.gicr_base = GICR_BASE,
	.rdistif_num = PLATFORM_CORE_COUNT,
	.rdistif_base_addrs = rdistif_base_addrs,
	.mpidr_to_core_pos = plat_mpidr_to_core_pos,
};

static const mmap_region_t plat_mmap[] = {
	MAP_REGION_FLAT(GICD_BASE, GICD_SIZE,
			MT_DEVICE | MT_RW | MT_SECURE),
	MAP_REGION_FLAT(GICR_BASE, GICR_SIZE,
			MT_DEVICE | MT_RW | MT_SECURE),
	MAP_REGION_FLAT(UART_BASE, PAGE_SIZE,
			MT_DEVICE | MT_RW | MT_SECURE),
	MAP_REGION_FLAT(SCU_CPU_BASE, PAGE_SIZE,
			MT_DEVICE | MT_RW | MT_SECURE),
	{ 0 }
};

void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
				u_register_t arg2, u_register_t arg3)
{
	console_16550_register(CONSOLE_UART_BASE, CONSOLE_UART_CLKIN_HZ,
			       CONSOLE_UART_BAUDRATE, &console);

	console_set_scope(&console, CONSOLE_FLAG_BOOT | CONSOLE_FLAG_RUNTIME | CONSOLE_FLAG_CRASH);

	SET_PARAM_HEAD(&bl32_ep_info, PARAM_EP, VERSION_2, 0);
	bl32_ep_info.pc = BL32_BASE;
	SET_SECURITY_STATE(bl32_ep_info.h.attr, SECURE);

	SET_PARAM_HEAD(&bl33_ep_info, PARAM_EP, VERSION_2, 0);
	bl33_ep_info.pc = mmio_read_64(SCU_CPU_SMP_EP0);
	bl33_ep_info.spsr = SPSR_64(MODE_EL2, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
	SET_SECURITY_STATE(bl33_ep_info.h.attr, NON_SECURE);
}

void bl31_plat_arch_setup(void)
{
	mmap_add_region(BL_CODE_BASE, BL_CODE_BASE,
			BL_CODE_END - BL_CODE_BASE,
			MT_CODE | MT_SECURE);

	mmap_add_region(BL_CODE_END, BL_CODE_END,
			BL_END - BL_CODE_END,
			MT_RW_DATA | MT_SECURE);

#if USE_COHERENT_MEM
	mmap_add_region(BL_COHERENT_RAM_BASE, BL_COHERENT_RAM_BASE,
			BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE,
			MT_DEVICE | MT_RW | MT_SECURE);
#endif

	mmap_add_region(BL32_BASE, BL32_BASE, BL32_SIZE,
			MT_MEMORY | MT_RW);

	mmap_add(plat_mmap);

	init_xlat_tables();

	enable_mmu_el3(0);
}

void bl31_platform_setup(void)
{
	gicv3_driver_init(&plat_gic_data);
	gicv3_distif_init();
	gicv3_rdistif_init(plat_my_core_pos());
	gicv3_cpuif_enable(plat_my_core_pos());
}

entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
{
	entry_point_info_t *ep_info;

	ep_info = (type == NON_SECURE) ? &bl33_ep_info : &bl32_ep_info;

	if (!ep_info->pc) {
		return NULL;
	}

	return ep_info;
}