diff options
Diffstat (limited to 'plat/imx/imx7/picopi/aarch32/picopi_helpers.S')
| -rw-r--r-- | plat/imx/imx7/picopi/aarch32/picopi_helpers.S | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/plat/imx/imx7/picopi/aarch32/picopi_helpers.S b/plat/imx/imx7/picopi/aarch32/picopi_helpers.S new file mode 100644 index 000000000..ff48f2453 --- /dev/null +++ b/plat/imx/imx7/picopi/aarch32/picopi_helpers.S @@ -0,0 +1,59 @@ +/* + * Copyright (c) Linaro 2018 Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <arch.h> +#include <asm_macros.S> +#include <assert_macros.S> +#include <platform_def.h> +#include <imx_hab.h> + + .globl platform_mem_init + .globl plat_get_my_entrypoint + .globl plat_crash_console_init + .globl plat_crash_console_putc + .globl plat_crash_console_flush + .globl plat_panic_handler + + /* --------------------------------------------- + * int plat_mem_init(void) + * Function to initialize memory. + * The HAB hands off the DDR controller already + * setup and ready to use. + * Implement the mandatory function as a NOP + * --------------------------------------------- + */ +func platform_mem_init + bx lr +endfunc platform_mem_init + +func plat_get_my_entrypoint + mov r0, #0 + bx lr +endfunc plat_get_my_entrypoint + +func plat_crash_console_init + mov_imm r0, PLAT_PICOPI_BOOT_UART_BASE + mov_imm r1, PLAT_PICOPI_BOOT_UART_CLK_IN_HZ + mov_imm r2, PLAT_PICOPI_CONSOLE_BAUDRATE + b imx_crash_uart_init +endfunc plat_crash_console_init + +func plat_crash_console_putc + mov_imm r1, PLAT_PICOPI_BOOT_UART_BASE + b imx_crash_uart_putc +endfunc plat_crash_console_putc + +func plat_crash_console_flush + /* Placeholder */ + mov r0, #0 + bx lr +endfunc plat_crash_console_flush + +func plat_panic_handler + mov r3, #HAB_ROM_VECTOR_TABLE_FAILSAFE + ldr r3, [r3, #0] + blx r3 +endfunc plat_panic_handler |