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95 lines
1.4 KiB
95 lines
1.4 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* arch/arm/include/debug/icedcc.S |
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* |
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* Copyright (C) 1994-1999 Russell King |
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*/ |
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@@ debug using ARM EmbeddedICE DCC channel |
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.macro addruart, rp, rv, tmp |
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.endm |
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#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) || defined(CONFIG_CPU_V7) |
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.macro senduart, rd, rx |
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mcr p14, 0, \rd, c0, c5, 0 |
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.endm |
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.macro busyuart, rd, rx |
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1001: |
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mrc p14, 0, \rx, c0, c1, 0 |
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tst \rx, #0x20000000 |
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beq 1001b |
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.endm |
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.macro waituartcts, rd, rx |
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.endm |
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.macro waituarttxrdy, rd, rx |
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mov \rd, #0x2000000 |
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1001: |
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subs \rd, \rd, #1 |
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bmi 1002f |
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mrc p14, 0, \rx, c0, c1, 0 |
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tst \rx, #0x20000000 |
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bne 1001b |
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1002: |
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.endm |
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#elif defined(CONFIG_CPU_XSCALE) |
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.macro senduart, rd, rx |
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mcr p14, 0, \rd, c8, c0, 0 |
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.endm |
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.macro busyuart, rd, rx |
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1001: |
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mrc p14, 0, \rx, c14, c0, 0 |
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tst \rx, #0x10000000 |
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beq 1001b |
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.endm |
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.macro waituartcts, rd, rx |
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.endm |
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.macro waituarttxrdy, rd, rx |
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mov \rd, #0x10000000 |
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1001: |
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subs \rd, \rd, #1 |
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bmi 1002f |
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mrc p14, 0, \rx, c14, c0, 0 |
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tst \rx, #0x10000000 |
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bne 1001b |
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1002: |
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.endm |
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#else |
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.macro senduart, rd, rx |
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mcr p14, 0, \rd, c1, c0, 0 |
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.endm |
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.macro busyuart, rd, rx |
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1001: |
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mrc p14, 0, \rx, c0, c0, 0 |
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tst \rx, #2 |
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beq 1001b |
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.endm |
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.macro waituartcts, rd, rx |
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.endm |
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.macro waituarttxrdy, rd, rx |
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mov \rd, #0x2000000 |
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1001: |
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subs \rd, \rd, #1 |
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bmi 1002f |
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mrc p14, 0, \rx, c0, c0, 0 |
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tst \rx, #2 |
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bne 1001b |
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1002: |
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.endm |
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#endif /* CONFIG_CPU_V6 */
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