blob: 5e5958baa28af199c4f03070f47dc394f8add2d3 [file] [log] [blame]
/*
* Copyright (c) 2015-2021, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <errno.h>
#include <platform_def.h>
#include <arch_helpers.h>
#include <common/debug.h>
#include <drivers/st/stm32mp_clkfunc.h>
#include <lib/smccc.h>
#include <lib/xlat_tables/xlat_tables_v2.h>
#include <plat/common/platform.h>
#include <services/arm_arch_svc.h>
uintptr_t plat_get_ns_image_entrypoint(void)
{
return BL33_BASE;
}
unsigned int plat_get_syscnt_freq2(void)
{
return read_cntfrq_el0();
}
static uintptr_t boot_ctx_address;
static uint16_t boot_itf_selected;
void stm32mp_save_boot_ctx_address(uintptr_t address)
{
boot_api_context_t *boot_context = (boot_api_context_t *)address;
boot_ctx_address = address;
boot_itf_selected = boot_context->boot_interface_selected;
}
uintptr_t stm32mp_get_boot_ctx_address(void)
{
return boot_ctx_address;
}
uint16_t stm32mp_get_boot_itf_selected(void)
{
return boot_itf_selected;
}
uintptr_t stm32mp_ddrctrl_base(void)
{
return DDRCTRL_BASE;
}
uintptr_t stm32mp_ddrphyc_base(void)
{
return DDRPHYC_BASE;
}
uintptr_t stm32mp_pwr_base(void)
{
return PWR_BASE;
}
uintptr_t stm32mp_rcc_base(void)
{
return RCC_BASE;
}
bool stm32mp_lock_available(void)
{
const uint32_t c_m_bits = SCTLR_M_BIT | SCTLR_C_BIT;
/* The spinlocks are used only when MMU and data cache are enabled */
return (read_sctlr() & c_m_bits) == c_m_bits;
}
int stm32mp_check_header(boot_api_image_header_t *header, uintptr_t buffer)
{
uint32_t i;
uint32_t img_checksum = 0U;
/*
* Check header/payload validity:
* - Header magic
* - Header version
* - Payload checksum
*/
if (header->magic != BOOT_API_IMAGE_HEADER_MAGIC_NB) {
ERROR("Header magic\n");
return -EINVAL;
}
if (header->header_version != BOOT_API_HEADER_VERSION) {
ERROR("Header version\n");
return -EINVAL;
}
for (i = 0U; i < header->image_length; i++) {
img_checksum += *(uint8_t *)(buffer + i);
}
if (header->payload_checksum != img_checksum) {
ERROR("Checksum: 0x%x (awaited: 0x%x)\n", img_checksum,
header->payload_checksum);
return -EINVAL;
}
return 0;
}
int stm32mp_map_ddr_non_cacheable(void)
{
return mmap_add_dynamic_region(STM32MP_DDR_BASE, STM32MP_DDR_BASE,
STM32MP_DDR_MAX_SIZE,
MT_NON_CACHEABLE | MT_RW | MT_SECURE);
}
int stm32mp_unmap_ddr(void)
{
return mmap_remove_dynamic_region(STM32MP_DDR_BASE,
STM32MP_DDR_MAX_SIZE);
}
/*****************************************************************************
* plat_is_smccc_feature_available() - This function checks whether SMCCC
* feature is availabile for platform.
* @fid: SMCCC function id
*
* Return SMC_ARCH_CALL_SUCCESS if SMCCC feature is available and
* SMC_ARCH_CALL_NOT_SUPPORTED otherwise.
*****************************************************************************/
int32_t plat_is_smccc_feature_available(u_register_t fid)
{
switch (fid) {
case SMCCC_ARCH_SOC_ID:
return SMC_ARCH_CALL_SUCCESS;
default:
return SMC_ARCH_CALL_NOT_SUPPORTED;
}
}
/* Get SOC version */
int32_t plat_get_soc_version(void)
{
uint32_t chip_id = stm32mp_get_chip_dev_id();
uint32_t manfid = SOC_ID_SET_JEP_106(JEDEC_ST_BKID, JEDEC_ST_MFID);
return (int32_t)(manfid | (chip_id & SOC_ID_IMPL_DEF_MASK));
}
/* Get SOC revision */
int32_t plat_get_soc_revision(void)
{
return (int32_t)(stm32mp_get_chip_version() & SOC_ID_REV_MASK);
}