mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-07 21:54:45 +00:00
77eb9a90dd
Add i.IMXRT family basic support. Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
35 lines
847 B
C
35 lines
847 B
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2019
|
|
* Author(s): Giulio Benetti <giulio.benetti@benettiengineering.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/io.h>
|
|
#include <asm/armv7_mpu.h>
|
|
|
|
int arch_cpu_init(void)
|
|
{
|
|
int i;
|
|
|
|
struct mpu_region_config imxrt1050_region_config[] = {
|
|
{ 0x00000000, REGION_0, XN_DIS, PRIV_RW_USR_RW,
|
|
STRONG_ORDER, REGION_4GB },
|
|
{ PHYS_SDRAM, REGION_1, XN_DIS, PRIV_RW_USR_RW,
|
|
O_I_WB_RD_WR_ALLOC, (ffs(PHYS_SDRAM_SIZE) - 2) },
|
|
{ DMAMEM_BASE,
|
|
REGION_2, XN_DIS, PRIV_RW_USR_RW,
|
|
STRONG_ORDER, (ffs(DMAMEM_SZ_ALL) - 2) },
|
|
};
|
|
|
|
/*
|
|
* Configure the memory protection unit (MPU) to allow full access to
|
|
* the whole 4GB address space.
|
|
*/
|
|
disable_mpu();
|
|
for (i = 0; i < ARRAY_SIZE(imxrt1050_region_config); i++)
|
|
mpu_config(&imxrt1050_region_config[i]);
|
|
enable_mpu();
|
|
|
|
return 0;
|
|
}
|