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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596/* SPDX-License-Identifier: GPL-2.0-only *//* * arch/arm/include/debug/icedcc.S * * Copyright (C) 1994-1999 Russell King */
@@ debug using ARM EmbeddedICE DCC channel
.macro addruart, rp, rv, tmp .endm
#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) || defined(CONFIG_CPU_V7)
.macro senduart, rd, rx mcr p14, 0, \rd, c0, c5, 0 .endm
.macro busyuart, rd, rx1001: mrc p14, 0, \rx, c0, c1, 0 tst \rx, #0x20000000 beq 1001b .endm
.macro waituartcts, rd, rx .endm
.macro waituarttxrdy, rd, rx mov \rd, #0x20000001001: subs \rd, \rd, #1 bmi 1002f mrc p14, 0, \rx, c0, c1, 0 tst \rx, #0x20000000 bne 1001b1002: .endm
#elif defined(CONFIG_CPU_XSCALE)
.macro senduart, rd, rx mcr p14, 0, \rd, c8, c0, 0 .endm
.macro busyuart, rd, rx1001: mrc p14, 0, \rx, c14, c0, 0 tst \rx, #0x10000000 beq 1001b .endm
.macro waituartcts, rd, rx .endm
.macro waituarttxrdy, rd, rx mov \rd, #0x100000001001: subs \rd, \rd, #1 bmi 1002f mrc p14, 0, \rx, c14, c0, 0 tst \rx, #0x10000000 bne 1001b1002: .endm
#else
.macro senduart, rd, rx mcr p14, 0, \rd, c1, c0, 0 .endm
.macro busyuart, rd, rx1001: mrc p14, 0, \rx, c0, c0, 0 tst \rx, #2 beq 1001b
.endm
.macro waituartcts, rd, rx .endm
.macro waituarttxrdy, rd, rx mov \rd, #0x20000001001: subs \rd, \rd, #1 bmi 1002f mrc p14, 0, \rx, c0, c0, 0 tst \rx, #2 bne 1001b1002: .endm
#endif /* CONFIG_CPU_V6 */