| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * Copyright (C) 2025 Marek Vasut |
| */ |
| #include <config.h> |
| #include <linux/linkage.h> |
| |
| ENTRY(boot_jump_linux_via_optee) |
| mov r4, r3 |
| mov lr, r0 |
| mov r3, #0 |
| mov r0, #0 |
| |
| /* |
| * Special TZC handling on this platform, the last |
| * 'str' has to be immediately before 'bx' and can |
| * not be interleaved with any return from function |
| * call, if it is then the system hangs. |
| */ |
| #if defined(CONFIG_STM32MP13X) && !defined(CONFIG_TFABOOT) |
| ldr r6, =STM32_TZC_BASE + 0x114 + (0x20 * 2) |
| mov r7, #0x0 |
| str r7, [r6] |
| ldr r6, =STM32_TZC_BASE + 0x110 + (0x20 * 1) |
| mov r7, #0x1 |
| str r7, [r6] |
| #endif |
| |
| bx r4 |
| ENDPROC(boot_jump_linux_via_optee) |
