blob: 6f64a292a21116ad57eecdccea008874ac288085 [file] [log] [blame]
/*
* Copyright 2022-2023 NXP
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <stdbool.h>
#include <arch_helpers.h>
#include <common/bl_common.h>
#include <common/debug.h>
#include <context.h>
#include <drivers/console.h>
#include <drivers/generic_delay_timer.h>
#include <drivers/nxp/trdc/imx_trdc.h>
#include <lib/el3_runtime/context_mgmt.h>
#include <lib/mmio.h>
#include <lib/xlat_tables/xlat_tables_v2.h>
#include <plat/common/platform.h>
#include <imx8_lpuart.h>
#include <plat_imx8.h>
#include <platform_def.h>
#define MAP_BL31_TOTAL \
MAP_REGION_FLAT(BL31_BASE, BL31_LIMIT - BL31_BASE, MT_MEMORY | MT_RW | MT_SECURE)
#define MAP_BL31_RO \
MAP_REGION_FLAT(BL_CODE_BASE, BL_CODE_END - BL_CODE_BASE, MT_MEMORY | MT_RO | MT_SECURE)
static const mmap_region_t imx_mmap[] = {
AIPS1_MAP, AIPS2_MAP, AIPS4_MAP, GIC_MAP,
TRDC_A_MAP, TRDC_W_MAP, TRDC_M_MAP,
TRDC_N_MAP,
{0},
};
static entry_point_info_t bl32_image_ep_info;
static entry_point_info_t bl33_image_ep_info;
/* get SPSR for BL33 entry */
static uint32_t get_spsr_for_bl33_entry(void)
{
unsigned long el_status;
unsigned long mode;
uint32_t spsr;
/* figure out what mode we enter the non-secure world */
el_status = read_id_aa64pfr0_el1() >> ID_AA64PFR0_EL2_SHIFT;
el_status &= ID_AA64PFR0_ELX_MASK;
mode = (el_status) ? MODE_EL2 : MODE_EL1;
spsr = SPSR_64(mode, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
return spsr;
}
void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
u_register_t arg2, u_register_t arg3)
{
static console_t console;
console_lpuart_register(IMX_LPUART_BASE, IMX_BOOT_UART_CLK_IN_HZ,
IMX_CONSOLE_BAUDRATE, &console);
/* This console is only used for boot stage */
console_set_scope(&console, CONSOLE_FLAG_BOOT);
/*
* tell BL3-1 where the non-secure software image is located
* and the entry state information.
*/
bl33_image_ep_info.pc = PLAT_NS_IMAGE_OFFSET;
bl33_image_ep_info.spsr = get_spsr_for_bl33_entry();
SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE);
}
void bl31_plat_arch_setup(void)
{
/* no coherence memory support on i.MX9 */
const mmap_region_t bl_regions[] = {
MAP_BL31_TOTAL,
MAP_BL31_RO,
};
/* Assign all the GPIO pins to non-secure world by default */
mmio_write_32(GPIO2_BASE + 0x10, 0xffffffff);
mmio_write_32(GPIO2_BASE + 0x14, 0x3);
mmio_write_32(GPIO2_BASE + 0x18, 0xffffffff);
mmio_write_32(GPIO2_BASE + 0x1c, 0x3);
mmio_write_32(GPIO3_BASE + 0x10, 0xffffffff);
mmio_write_32(GPIO3_BASE + 0x14, 0x3);
mmio_write_32(GPIO3_BASE + 0x18, 0xffffffff);
mmio_write_32(GPIO3_BASE + 0x1c, 0x3);
mmio_write_32(GPIO4_BASE + 0x10, 0xffffffff);
mmio_write_32(GPIO4_BASE + 0x14, 0x3);
mmio_write_32(GPIO4_BASE + 0x18, 0xffffffff);
mmio_write_32(GPIO4_BASE + 0x1c, 0x3);
mmio_write_32(GPIO1_BASE + 0x10, 0xffffffff);
mmio_write_32(GPIO1_BASE + 0x14, 0x3);
mmio_write_32(GPIO1_BASE + 0x18, 0xffffffff);
mmio_write_32(GPIO1_BASE + 0x1c, 0x3);
setup_page_tables(bl_regions, imx_mmap);
enable_mmu_el3(0);
/* trdc must be initialized */
trdc_config();
}
void bl31_platform_setup(void)
{
generic_delay_timer_init();
plat_gic_driver_init();
plat_gic_init();
}
void bl31_plat_runtime_setup(void)
{
console_switch_state(CONSOLE_FLAG_RUNTIME);
}
entry_point_info_t *bl31_plat_get_next_image_ep_info(unsigned int type)
{
if (type == NON_SECURE) {
return &bl33_image_ep_info;
}
if (type == SECURE) {
return &bl32_image_ep_info;
}
return NULL;
}
unsigned int plat_get_syscnt_freq2(void)
{
return COUNTER_FREQUENCY;
}