diff options
| author | Russell King <rmk+kernel@armlinux.org.uk> | 2019-05-21 15:31:42 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2019-06-11 17:42:36 +0100 |
| commit | 12290cc462c24deee503e84e87dea622b40ea15d (patch) | |
| tree | 845768ee87936136dfb63d3a7cc145b2a51a1fae /arch/arm/mach-rpc/ecard-loader.S | |
| parent | e579201a832cb796a474ef743d131eff2730cfa7 (diff) | |
ARM: riscpc: move RiscPC assembly files from arch/arm/lib to mach-rpc
Move the assembly files for RiscPC from arch/arm/lib to mach-rpc so
that we contain RiscPC bits in one subdirectory.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/mach-rpc/ecard-loader.S')
| -rw-r--r-- | arch/arm/mach-rpc/ecard-loader.S | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/mach-rpc/ecard-loader.S b/arch/arm/mach-rpc/ecard-loader.S new file mode 100644 index 000000000000..e6057fa851bb --- /dev/null +++ b/arch/arm/mach-rpc/ecard-loader.S @@ -0,0 +1,44 @@ +/* + * linux/arch/arm/lib/ecard.S + * + * Copyright (C) 1995, 1996 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * 27/03/03 Ian Molton Clean up CONFIG_CPU + * + */ +#include <linux/linkage.h> +#include <asm/assembler.h> + +#define CPSR2SPSR(rt) \ + mrs rt, cpsr; \ + msr spsr_cxsf, rt + +@ Purpose: call an expansion card loader to read bytes. +@ Proto : char read_loader(int offset, char *card_base, char *loader); +@ Returns: byte read + +ENTRY(ecard_loader_read) + stmfd sp!, {r4 - r12, lr} + mov r11, r1 + mov r1, r0 + CPSR2SPSR(r0) + mov lr, pc + mov pc, r2 + ldmfd sp!, {r4 - r12, pc} + +@ Purpose: call an expansion card loader to reset the card +@ Proto : void read_loader(int card_base, char *loader); +@ Returns: byte read + +ENTRY(ecard_loader_reset) + stmfd sp!, {r4 - r12, lr} + mov r11, r0 + CPSR2SPSR(r0) + mov lr, pc + add pc, r1, #8 + ldmfd sp!, {r4 - r12, pc} + |