plat/st/stm32mp2/stm32mp2_private.c

/*
 * Copyright (c) 2023-2024, STMicroelectronics - All Rights Reserved
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <assert.h>

#include <lib/xlat_tables/xlat_tables_v2.h>

#include <platform_def.h>

#define BKPR_BOOT_MODE	96U

#define MAP_SYSRAM	MAP_REGION_FLAT(STM32MP_SYSRAM_BASE, \
					STM32MP_SYSRAM_SIZE, \
					MT_MEMORY | \
					MT_RW | \
					MT_SECURE | \
					MT_EXECUTE_NEVER)

#define MAP_DEVICE	MAP_REGION_FLAT(STM32MP_DEVICE_BASE, \
					STM32MP_DEVICE_SIZE, \
					MT_DEVICE | \
					MT_RW | \
					MT_SECURE | \
					MT_EXECUTE_NEVER)

#if defined(IMAGE_BL2)
static const mmap_region_t stm32mp2_mmap[] = {
	MAP_SYSRAM,
	MAP_DEVICE,
	{0}
};
#endif

void configure_mmu(void)
{
	mmap_add(stm32mp2_mmap);
	init_xlat_tables();

	enable_mmu_el3(0);
}

uintptr_t stm32_get_gpio_bank_base(unsigned int bank)
{
	if (bank == GPIO_BANK_Z) {
		return GPIOZ_BASE;
	}

	assert(bank <= GPIO_BANK_K);

	return GPIOA_BASE + (bank * GPIO_BANK_OFFSET);
}

uint32_t stm32_get_gpio_bank_offset(unsigned int bank)
{
	if (bank == GPIO_BANK_Z) {
		return 0;
	}

	assert(bank <= GPIO_BANK_K);

	return bank * GPIO_BANK_OFFSET;
}

unsigned long stm32_get_gpio_bank_clock(unsigned int bank)
{
	if (bank == GPIO_BANK_Z) {
		return CK_BUS_GPIOZ;
	}

	assert(bank <= GPIO_BANK_K);

	return CK_BUS_GPIOA + (bank - GPIO_BANK_A);
}

uintptr_t stm32_get_bkpr_boot_mode_addr(void)
{
	return tamp_bkpr(BKPR_BOOT_MODE);
}