1/* 2 * linux/arch/arm/lib/ecard.S 3 * 4 * Copyright (C) 1995, 1996 Russell King 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 * 10 * 27/03/03 Ian Molton Clean up CONFIG_CPU 11 * 12 */ 13#include <linux/linkage.h> 14#include <asm/assembler.h> 15#include <mach/hardware.h> 16 17#define CPSR2SPSR(rt) \ 18 mrs rt, cpsr; \ 19 msr spsr_cxsf, rt 20 21@ Purpose: call an expansion card loader to read bytes. 22@ Proto : char read_loader(int offset, char *card_base, char *loader); 23@ Returns: byte read 24 25ENTRY(ecard_loader_read) 26 stmfd sp!, {r4 - r12, lr} 27 mov r11, r1 28 mov r1, r0 29 CPSR2SPSR(r0) 30 mov lr, pc 31 mov pc, r2 32 ldmfd sp!, {r4 - r12, pc} 33 34@ Purpose: call an expansion card loader to reset the card 35@ Proto : void read_loader(int card_base, char *loader); 36@ Returns: byte read 37 38ENTRY(ecard_loader_reset) 39 stmfd sp!, {r4 - r12, lr} 40 mov r11, r0 41 CPSR2SPSR(r0) 42 mov lr, pc 43 add pc, r1, #8 44 ldmfd sp!, {r4 - r12, pc} 45