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u-boot/arch/arm/mach-k3/r5_mpu.c

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armv7R: K3: am654: Enable MPU regions Enable MPU regions for AM654 evm: - Region0: 0x00000000 - 0xFFFFFFFF: Device memory, not executable - Region1: 0x41c00000 - 0x42400000: Normal, executable, WB, Write alloc - Region2: 0x80000000 - 0xFFFFFFFF: Normal, executable, WB, Write alloc - region3-15: Disabled With this dcache can be enabled either in SPL or U-Boot. Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-11-02 14:21:03 +00:00
// SPDX-License-Identifier: GPL-2.0+
/*
* K3: R5 MPU region definitions
*
tree-wide: Replace http:// link with https:// link for ti.com Replace instances of http://www.ti.com with https://www.ti.com Signed-off-by: Nishanth Menon <nm@ti.com>
2023-11-01 20:56:03 +00:00
* Copyright (C) 2017-2018 Texas Instruments Incorporated - https://www.ti.com/
armv7R: K3: am654: Enable MPU regions Enable MPU regions for AM654 evm: - Region0: 0x00000000 - 0xFFFFFFFF: Device memory, not executable - Region1: 0x41c00000 - 0x42400000: Normal, executable, WB, Write alloc - Region2: 0x80000000 - 0xFFFFFFFF: Normal, executable, WB, Write alloc - region3-15: Disabled With this dcache can be enabled either in SPL or U-Boot. Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-11-02 14:21:03 +00:00
* Lokesh Vutla <lokeshvutla@ti.com>
*/
#include <common.h>
#include <asm/io.h>
#include <linux/kernel.h>
#include "common.h"
struct mpu_region_config k3_mpu_regions[16] = {
/*
* Make all 4GB as Device Memory and not executable. We are overriding
* it with next region for any requirement.
*/
{0x00000000, REGION_0, XN_EN, PRIV_RW_USR_RW, SHARED_WRITE_BUFFERED,
REGION_4GB},
/* SPL code area marking it as WB and Write allocate. */
{CONFIG_SPL_TEXT_BASE, REGION_1, XN_DIS, PRIV_RW_USR_RW,
O_I_WB_RD_WR_ALLOC, REGION_8MB},
/* U-Boot's code area marking it as WB and Write allocate */
global: Move remaining CONFIG_SYS_SDRAM_* to CFG_SYS_SDRAM_* The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_SDRAM namespace do not easily transition to Kconfig. In many cases they likely should come from the device tree instead. Move these out of CONFIG namespace and in to CFG namespace. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2022-11-16 18:10:37 +00:00
{CFG_SYS_SDRAM_BASE, REGION_2, XN_DIS, PRIV_RW_USR_RW,
armv7R: K3: am654: Enable MPU regions Enable MPU regions for AM654 evm: - Region0: 0x00000000 - 0xFFFFFFFF: Device memory, not executable - Region1: 0x41c00000 - 0x42400000: Normal, executable, WB, Write alloc - Region2: 0x80000000 - 0xFFFFFFFF: Normal, executable, WB, Write alloc - region3-15: Disabled With this dcache can be enabled either in SPL or U-Boot. Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-11-02 14:21:03 +00:00
O_I_WB_RD_WR_ALLOC, REGION_2GB},
armv7R: K3: r5_mpu: Enable execute permission for MCU0 BTCM Enable execute permission for mcu_r5fss0_core0 BTCM so that we can jump to a firmware directly from SPL. Signed-off-by: Keerthy <j-keerthy@ti.com>
2020-02-12 08:25:05 +00:00
/* mcu_r5fss0_core0 BTCM area marking it as WB and Write allocate. */
{0x41010000, 3, XN_DIS, PRIV_RW_USR_RW, O_I_WB_RD_WR_ALLOC,
REGION_8MB},
armv7R: K3: am654: Enable MPU regions Enable MPU regions for AM654 evm: - Region0: 0x00000000 - 0xFFFFFFFF: Device memory, not executable - Region1: 0x41c00000 - 0x42400000: Normal, executable, WB, Write alloc - Region2: 0x80000000 - 0xFFFFFFFF: Normal, executable, WB, Write alloc - region3-15: Disabled With this dcache can be enabled either in SPL or U-Boot. Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-11-02 14:21:03 +00:00
{0x0, 4, 0x0, 0x0, 0x0, 0x0},
{0x0, 5, 0x0, 0x0, 0x0, 0x0},
{0x0, 6, 0x0, 0x0, 0x0, 0x0},
{0x0, 7, 0x0, 0x0, 0x0, 0x0},
{0x0, 8, 0x0, 0x0, 0x0, 0x0},
{0x0, 9, 0x0, 0x0, 0x0, 0x0},
{0x0, 10, 0x0, 0x0, 0x0, 0x0},
{0x0, 11, 0x0, 0x0, 0x0, 0x0},
{0x0, 12, 0x0, 0x0, 0x0, 0x0},
{0x0, 13, 0x0, 0x0, 0x0, 0x0},
{0x0, 14, 0x0, 0x0, 0x0, 0x0},
{0x0, 15, 0x0, 0x0, 0x0, 0x0},
};
void setup_k3_mpu_regions(void)
{
setup_mpu_regions(k3_mpu_regions, ARRAY_SIZE(k3_mpu_regions));
}
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