15accce5bSRoberto Vargas/* 25accce5bSRoberto Vargas * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. 35accce5bSRoberto Vargas * 45accce5bSRoberto Vargas * SPDX-License-Identifier: BSD-3-Clause 55accce5bSRoberto Vargas */ 65accce5bSRoberto Vargas 75accce5bSRoberto Vargas .globl rom_lib_init 8*f1722b69SSoby Mathew .extern __DATA_RAM_START__, __DATA_ROM_START__, __DATA_RAM_END__ 95accce5bSRoberto Vargas .extern memset, memcpy 105accce5bSRoberto Vargas 115accce5bSRoberto Vargasrom_lib_init: 125accce5bSRoberto Vargas cmp w0, #1 135accce5bSRoberto Vargas mov w0, #0 145accce5bSRoberto Vargas b.le 1f 155accce5bSRoberto Vargas ret 165accce5bSRoberto Vargas 175accce5bSRoberto Vargas1: stp x29, x30, [sp, #-16]! 185accce5bSRoberto Vargas adrp x0, __DATA_RAM_START__ 19*f1722b69SSoby Mathew adrp x1, __DATA_ROM_START__ 20*f1722b69SSoby Mathew add x1, x1, :lo12:__DATA_ROM_START__ 21*f1722b69SSoby Mathew adrp x2, __DATA_RAM_END__ 22*f1722b69SSoby Mathew add x2, x2, :lo12:__DATA_RAM_END__ 23*f1722b69SSoby Mathew sub x2, x2, x0 245accce5bSRoberto Vargas bl memcpy 255accce5bSRoberto Vargas 26*f1722b69SSoby Mathew adrp x0,__BSS_START__ 27*f1722b69SSoby Mathew add x0, x0, :lo12:__BSS_START__ 285accce5bSRoberto Vargas mov x1, #0 29*f1722b69SSoby Mathew adrp x2, __BSS_END__ 30*f1722b69SSoby Mathew add x2, x2, :lo12:__BSS_END__ 31*f1722b69SSoby Mathew sub x2, x2, x0 325accce5bSRoberto Vargas bl memset 335accce5bSRoberto Vargas ldp x29, x30, [sp], #16 345accce5bSRoberto Vargas 355accce5bSRoberto Vargas mov w0, #1 365accce5bSRoberto Vargas ret 37