u-boot/arch/arm/cpu/armv7m/stm32f4/soc.c
rev13@wp.pl eaaa4f7e0e ARMv7M: Add STM32F4 support
Signed-off-by: Kamil Lulko <rev13@wp.pl>
Reviewed-by: Tom Rini <trini@konsulko.com>
2015-04-22 12:14:55 -04:00

37 lines
648 B
C

/*
* (C) Copyright 2015
* Kamil Lulko, <rev13@wp.pl>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/armv7m.h>
#include <asm/arch/stm32.h>
u32 get_cpu_rev(void)
{
return 0;
}
int arch_cpu_init(void)
{
configure_clocks();
/*
* Configure the memory protection unit (MPU) to allow full access to
* the whole 4GB address space.
*/
writel(0, &V7M_MPU->rnr);
writel(0, &V7M_MPU->rbar);
writel((V7M_MPU_RASR_AP_RW_RW | V7M_MPU_RASR_SIZE_4GB
| V7M_MPU_RASR_EN), &V7M_MPU->rasr);
writel(V7M_MPU_CTRL_ENABLE | V7M_MPU_CTRL_HFNMIENA, &V7M_MPU->ctrl);
return 0;
}
void s_init(void)
{
}