1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
48 lines
1.2 KiB
ArmAsm
48 lines
1.2 KiB
ArmAsm
/* linux/include/asm-arm/arch-iop3xx/debug-macro.S
|
|
*
|
|
* Debugging macro include header
|
|
*
|
|
* Copyright (C) 1994-1999 Russell King
|
|
* Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
.macro addruart,rx
|
|
mov \rx, #0xfe000000 @ physical
|
|
#if defined(CONFIG_ARCH_IQ80321) || defined(CONFIG_ARCH_IQ31244)
|
|
orr \rx, \rx, #0x00800000 @ location of the UART
|
|
#elif defined(CONFIG_ARCH_IOP331)
|
|
mrc p15, 0, \rx, c1, c0
|
|
tst \rx, #1 @ MMU enabled?
|
|
moveq \rx, #0x000fe000 @ Physical Base
|
|
movne \rx, #0
|
|
orr \rx, \rx, #0xfe000000
|
|
orr \rx, \rx, #0x00f00000 @ Virtual Base
|
|
orr \rx, \rx, #0x00001700 @ location of the UART
|
|
#else
|
|
#error Unknown IOP3XX implementation
|
|
#endif
|
|
.endm
|
|
|
|
.macro senduart,rd,rx
|
|
strb \rd, [\rx]
|
|
.endm
|
|
|
|
.macro busyuart,rd,rx
|
|
1002: ldrb \rd, [\rx, #0x5]
|
|
and \rd, \rd, #0x60
|
|
teq \rd, #0x60
|
|
bne 1002b
|
|
.endm
|
|
|
|
.macro waituart,rd,rx
|
|
#if !defined(CONFIG_ARCH_IQ80321) || !defined(CONFIG_ARCH_IQ31244) || !defined(CONFIG_ARCH_IQ80331)
|
|
1001: ldrb \rd, [\rx, #0x6]
|
|
tst \rd, #0x10
|
|
beq 1001b
|
|
#endif
|
|
.endm
|