xref: /OK3568_Linux_fs/u-boot/arch/arm/mach-stm32/stm32f4/soc.c (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1 /*
2  * (C) Copyright 2015
3  * Kamil Lulko, <kamil.lulko@gmail.com>
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #include <common.h>
9 #include <asm/io.h>
10 #include <asm/armv7m_mpu.h>
11 #include <asm/arch/stm32.h>
12 
get_cpu_rev(void)13 u32 get_cpu_rev(void)
14 {
15 	return 0;
16 }
17 
arch_cpu_init(void)18 int arch_cpu_init(void)
19 {
20 	struct mpu_region_config stm32_region_config[] = {
21 		{ 0x00000000, REGION_0, XN_DIS, PRIV_RW_USR_RW,
22 		STRONG_ORDER, REGION_4GB },
23 	};
24 	int i;
25 
26 	configure_clocks();
27 	/*
28 	 * Configure the memory protection unit (MPU) to allow full access to
29 	 * the whole 4GB address space.
30 	 */
31 	disable_mpu();
32 	for (i = 0; i < ARRAY_SIZE(stm32_region_config); i++)
33 		mpu_config(&stm32_region_config[i]);
34 	enable_mpu();
35 
36 	return 0;
37 }
38 
s_init(void)39 void s_init(void)
40 {
41 }
42