arch/arm26/lib/ecard.S

   1 /*
   2  *  linux/arch/arm26/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 #include <linux/config.h> /* for CONFIG_CPU_nn */
  11 #include <linux/linkage.h>
  12 #include <asm/assembler.h>
  13 #include <asm/hardware.h>
  14
  15 #define CPSR2SPSR(rt)
  16
  17 @ Purpose: call an expansion card loader to read bytes.
  18 @ Proto  : char read_loader(int offset, char *card_base, char *loader);
  19 @ Returns: byte read
  20
  21 ENTRY(ecard_loader_read)
  22                 stmfd   sp!, {r4 - r12, lr}
  23                 mov     r11, r1
  24                 mov     r1, r0
  25                 CPSR2SPSR(r0)
  26                 mov     lr, pc
  27                 mov     pc, r2
  28                 LOADREGS(fd, sp!, {r4 - r12, pc})
  29
  30 @ Purpose: call an expansion card loader to reset the card
  31 @ Proto  : void read_loader(int card_base, char *loader);
  32 @ Returns: byte read
  33
  34 ENTRY(ecard_loader_reset)
  35                 stmfd   sp!, {r4 - r12, lr}
  36                 mov     r11, r0
  37                 CPSR2SPSR(r0)
  38                 mov     lr, pc
  39                 add     pc, r1, #8
  40                 LOADREGS(fd, sp!, {r4 - r12, pc})
  41