u-boot-brain/arch/arm/mach-zynqmp-r5/cpu.c
Michal Simek e3259a700a xilinx: r5: Fix MPU setting for R5
Map all resource for R5 to operate properly.
The patch is done based on the commit 23f7b1a776 ("armv7R: K3: am654:
Enable MPU regions") which also map the whole 4GB at first and then change
mapping for DDR.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2020-09-23 10:31:41 +02:00

37 lines
655 B
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2018 Xilinx, Inc. (Michal Simek)
*/
#include <common.h>
#include <cpu_func.h>
#include <init.h>
#include <asm/armv7_mpu.h>
DECLARE_GLOBAL_DATA_PTR;
struct mpu_region_config region_config[] = {
{ 0x00000000, REGION_0, XN_EN, PRIV_RW_USR_RW,
SHARED_WRITE_BUFFERED, REGION_4GB },
{ 0x00000000, REGION_1, XN_DIS, PRIV_RW_USR_RW,
O_I_WB_RD_WR_ALLOC, REGION_1GB },
};
int arch_cpu_init(void)
{
gd->cpu_clk = CONFIG_CPU_FREQ_HZ;
setup_mpu_regions(region_config, ARRAY_SIZE(region_config));
return 0;
}
/*
* Perform the low-level reset.
*/
void reset_cpu(ulong addr)
{
while (1)
;
}