xref: /openbmc/u-boot/arch/arm/mach-zynqmp-r5/cpu.c (revision ae485b54)
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (C) 2018 Xilinx, Inc. (Michal Simek)
4  */
5 
6 #include <common.h>
7 #include <asm/armv7_mpu.h>
8 
9 DECLARE_GLOBAL_DATA_PTR;
10 
11 struct mpu_region_config region_config[] = {
12 	{ 0x00000000, REGION_0, XN_DIS, PRIV_RW_USR_RW,
13 	  O_I_WB_RD_WR_ALLOC, REGION_1GB },
14 	{ 0x20000000, REGION_1, XN_EN, PRIV_RO_USR_RO,
15 	  O_I_WB_RD_WR_ALLOC, REGION_512MB },
16 	{ 0x40000000, REGION_2, XN_EN, PRIV_RO_USR_RO,
17 	  O_I_WB_RD_WR_ALLOC, REGION_1GB },
18 };
19 
20 int arch_cpu_init(void)
21 {
22 	gd->cpu_clk = CONFIG_CPU_FREQ_HZ;
23 
24 	setup_mpu_regions(region_config, sizeof(region_config) /
25 			  sizeof(struct mpu_region_config));
26 
27 	return 0;
28 }
29 
30 /*
31  * Perform the low-level reset.
32  */
33 void reset_cpu(ulong addr)
34 {
35 	while (1)
36 		;
37 }
38