/* 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, rx
1001:
                mrc     p14, 0, \rx, c0, c1, 0
                tst     \rx, #0x20000000
                beq     1001b
                .endm

                .macro  waituartcts, rd, rx
                .endm

                .macro  waituarttxrdy, rd, rx
                mov     \rd, #0x2000000
1001:
                subs    \rd, \rd, #1
                bmi     1002f
                mrc     p14, 0, \rx, c0, c1, 0
                tst     \rx, #0x20000000
                bne     1001b
1002:
                .endm

#elif defined(CONFIG_CPU_XSCALE)

                .macro  senduart, rd, rx
                mcr     p14, 0, \rd, c8, c0, 0
                .endm

                .macro  busyuart, rd, rx
1001:
                mrc     p14, 0, \rx, c14, c0, 0
                tst     \rx, #0x10000000
                beq     1001b
                .endm

                .macro  waituartcts, rd, rx
                .endm

                .macro  waituarttxrdy, rd, rx
                mov     \rd, #0x10000000
1001:
                subs    \rd, \rd, #1
                bmi     1002f
                mrc     p14, 0, \rx, c14, c0, 0
                tst     \rx, #0x10000000
                bne     1001b
1002:
                .endm

#else

                .macro  senduart, rd, rx
                mcr     p14, 0, \rd, c1, c0, 0
                .endm

                .macro  busyuart, rd, rx
1001:
                mrc     p14, 0, \rx, c0, c0, 0
                tst     \rx, #2
                beq     1001b

                .endm

                .macro  waituartcts, rd, rx
                .endm

                .macro  waituarttxrdy, rd, rx
                mov     \rd, #0x2000000
1001:
                subs    \rd, \rd, #1
                bmi     1002f
                mrc     p14, 0, \rx, c0, c0, 0
                tst     \rx, #2
                bne     1001b
1002:
                .endm

#endif  /* CONFIG_CPU_V6 */