u-boot/arch/arm/mach-stm32/stm32h7/soc.c
Patrice Chotard 246771b184 board: Add stm32h7 SoC, discovery and evaluation boards support
This patch adds support for stm32h7 soc family, stm32h743
discovery and evaluation boards.

For more information about STM32H7 series, please visit:
http://www.st.com/en/microcontrollers/stm32h7-series.html

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-09-22 07:40:03 -04:00

59 lines
1.3 KiB
C

/*
* Copyright (C) STMicroelectronics SA 2017
* Author(s): Patrice CHOTARD, <patrice.chotard@st.com> for STMicroelectronics.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/armv7m_mpu.h>
u32 get_cpu_rev(void)
{
return 0;
}
int arch_cpu_init(void)
{
int i;
struct mpu_region_config stm32_region_config[] = {
/*
* Make all 4GB cacheable & executable. We are overriding it
* with next region for any requirement. e.g. below region1,
* 2 etc.
* In other words, the area not coming in following
* regions configuration is the one configured here in region_0
* (cacheable & executable).
*/
{ 0x00000000, REGION_0, XN_DIS, PRIV_RW_USR_RW,
O_I_WB_RD_WR_ALLOC, REGION_4GB },
/* Code area, executable & strongly ordered */
{ 0xD0000000, REGION_1, XN_EN, PRIV_RW_USR_RW,
STRONG_ORDER, REGION_8MB },
/* Device area in all H7 : Not executable */
{ 0x40000000, REGION_2, XN_EN, PRIV_RW_USR_RW,
DEVICE_NON_SHARED, REGION_512MB },
/*
* Armv7m fixed configuration: strongly ordered & not
* executable, not cacheable
*/
{ 0xE0000000, REGION_4, XN_EN, PRIV_RW_USR_RW,
STRONG_ORDER, REGION_512MB },
};
disable_mpu();
for (i = 0; i < ARRAY_SIZE(stm32_region_config); i++)
mpu_config(&stm32_region_config[i]);
enable_mpu();
return 0;
}
void s_init(void)
{
}