arm-trusted-firmware/plat/st/common/stm32mp_common.c

119 lines
2.0 KiB
C

/*
* Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <platform_def.h>
#include <arch_helpers.h>
#include <common/debug.h>
#include <drivers/st/stm32mp_clkfunc.h>
#include <plat/common/platform.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;
void stm32mp_save_boot_ctx_address(uintptr_t address)
{
boot_ctx_address = address;
}
uintptr_t stm32mp_get_boot_ctx_address(void)
{
return boot_ctx_address;
}
uintptr_t stm32mp_ddrctrl_base(void)
{
static uintptr_t ddrctrl_base;
if (ddrctrl_base == 0) {
ddrctrl_base = dt_get_ddrctrl_base();
assert(ddrctrl_base == DDRCTRL_BASE);
}
return ddrctrl_base;
}
uintptr_t stm32mp_ddrphyc_base(void)
{
static uintptr_t ddrphyc_base;
if (ddrphyc_base == 0) {
ddrphyc_base = dt_get_ddrphyc_base();
assert(ddrphyc_base == DDRPHYC_BASE);
}
return ddrphyc_base;
}
uintptr_t stm32mp_pwr_base(void)
{
static uintptr_t pwr_base;
if (pwr_base == 0) {
pwr_base = dt_get_pwr_base();
assert(pwr_base == PWR_BASE);
}
return pwr_base;
}
uintptr_t stm32mp_rcc_base(void)
{
static uintptr_t rcc_base;
if (rcc_base == 0) {
rcc_base = fdt_rcc_read_addr();
assert(rcc_base == RCC_BASE);
}
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;
}
uintptr_t stm32_get_gpio_bank_base(unsigned int bank)
{
if (bank == GPIO_BANK_Z) {
return GPIOZ_BASE;
}
assert(GPIO_BANK_A == 0 && 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(GPIO_BANK_A == 0 && bank <= GPIO_BANK_K);
return bank * GPIO_BANK_OFFSET;
}