1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * linux/arch/arm/lib/ecard.S 4 * 5 * Copyright (C) 1995, 1996 Russell King 6 * 7 * 27/03/03 Ian Molton Clean up CONFIG_CPU 8 */ 9#include <linux/linkage.h> 10#include <asm/assembler.h> 11 12#define CPSR2SPSR(rt) \ 13 mrs rt, cpsr; \ 14 msr spsr_cxsf, rt 15 16@ Purpose: call an expansion card loader to read bytes. 17@ Proto : char read_loader(int offset, char *card_base, char *loader); 18@ Returns: byte read 19 20ENTRY(ecard_loader_read) 21 stmfd sp!, {r4 - r12, lr} 22 mov r11, r1 23 mov r1, r0 24 CPSR2SPSR(r0) 25 mov lr, pc 26 mov pc, r2 27 ldmfd sp!, {r4 - r12, pc} 28 29@ Purpose: call an expansion card loader to reset the card 30@ Proto : void read_loader(int card_base, char *loader); 31@ Returns: byte read 32 33ENTRY(ecard_loader_reset) 34 stmfd sp!, {r4 - r12, lr} 35 mov r11, r0 36 CPSR2SPSR(r0) 37 mov lr, pc 38 add pc, r1, #8 39 ldmfd sp!, {r4 - r12, pc} 40 41