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| author | Russell King <rmk+kernel@armlinux.org.uk> | 2019-07-03 11:44:46 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2019-07-03 11:44:46 +0100 |
| commit | 1f6db18fbd764ea3079eba289652b622f9c8c5ef (patch) | |
| tree | 7483de89a7684b33634190220c15abc3dcf42039 /arch/arm/mach-rpc/floppydma.S | |
| parent | d6c8204659eb1846c444997ee28fe9d7e5442f4e (diff) | |
| parent | 0b40deeef6d94ac21f4cdee4b1cda94a69c54ff9 (diff) | |
Merge branch 'sa1100-for-next'; commit 'riscpc^{/ARM: riscpc: enable chained scatterlist support}' into for-arm-soc
Diffstat (limited to 'arch/arm/mach-rpc/floppydma.S')
| -rw-r--r-- | arch/arm/mach-rpc/floppydma.S | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/arm/mach-rpc/floppydma.S b/arch/arm/mach-rpc/floppydma.S new file mode 100644 index 000000000000..de68d3b343e3 --- /dev/null +++ b/arch/arm/mach-rpc/floppydma.S @@ -0,0 +1,32 @@ +/* + * linux/arch/arm/lib/floppydma.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. + */ +#include <linux/linkage.h> +#include <asm/assembler.h> + .text + + .global floppy_fiqin_end +ENTRY(floppy_fiqin_start) + subs r9, r9, #1 + ldrbgt r12, [r11, #-4] + ldrble r12, [r11], #0 + strb r12, [r10], #1 + subs pc, lr, #4 +floppy_fiqin_end: + + .global floppy_fiqout_end +ENTRY(floppy_fiqout_start) + subs r9, r9, #1 + ldrbge r12, [r10], #1 + movlt r12, #0 + strble r12, [r11], #0 + subsle pc, lr, #4 + strb r12, [r11, #-4] + subs pc, lr, #4 +floppy_fiqout_end: |