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[u-boot] / arch / arm / mach-stm32 / stm32f7 / soc.c
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
13 u32 get_cpu_rev(void)
14 {
15         return 0;
16 }
17
18 int arch_cpu_init(void)
19 {
20         int i;
21
22         struct mpu_region_config stm32_region_config[] = {
23                 { 0x00000000, REGION_0, XN_DIS, PRIV_RW_USR_RW,
24                 O_I_WB_RD_WR_ALLOC, REGION_4GB },
25
26                 { 0x00000000, REGION_1, XN_DIS, PRIV_RW_USR_RW,
27                 STRONG_ORDER, REGION_512MB },
28
29                 { 0x40000000, REGION_2, XN_EN, PRIV_RW_USR_RW,
30                 DEVICE_NON_SHARED, REGION_512MB },
31
32                 { 0xA0000000, REGION_3, XN_EN, PRIV_RW_USR_RW,
33                 DEVICE_NON_SHARED, REGION_512MB },
34
35                 { 0xE0000000, REGION_4, XN_EN, PRIV_RW_USR_RW,
36                 STRONG_ORDER, REGION_512MB },
37         };
38
39         disable_mpu();
40         for (i = 0; i < ARRAY_SIZE(stm32_region_config); i++)
41                 mpu_config(&stm32_region_config[i]);
42         enable_mpu();
43
44         return 0;
45 }
46
47 void s_init(void)
48 {
49 }