/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *
 * Copyright (C) 2007 Google, Inc.
 * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
 * Author: Brian Swetland <swetland@google.com>
 */

        .macro  addruart, rp, rv, tmp
        ldr     \rp, =CONFIG_DEBUG_UART_PHYS
        ldr     \rv, =CONFIG_DEBUG_UART_VIRT
        .endm

        .macro  senduart, rd, rx
ARM_BE8(rev     \rd, \rd )
        @ Write the 1 character to UARTDM_TF
        str     \rd, [\rx, #0x70]
        .endm

        .macro  waituartcts,rd,rx
        .endm

        .macro  waituarttxrdy, rd, rx
        @ check for TX_EMT in UARTDM_SR
        ldr     \rd, [\rx, #0x08]
ARM_BE8(rev     \rd, \rd )
        tst     \rd, #0x08
        bne     1002f
        @ wait for TXREADY in UARTDM_ISR
1001:   ldr     \rd, [\rx, #0x14]
ARM_BE8(rev     \rd, \rd )
        tst     \rd, #0x80
        beq     1001b
1002:
        @ Clear TX_READY by writing to the UARTDM_CR register
        mov     \rd, #0x300
ARM_BE8(rev     \rd, \rd )
        str     \rd, [\rx, #0x10]
        @ Write 0x1 to NCF register
        mov     \rd, #0x1
ARM_BE8(rev     \rd, \rd )
        str     \rd, [\rx, #0x40]
        @ UARTDM reg. Read to induce delay
        ldr     \rd, [\rx, #0x08]
        .endm

        .macro  busyuart, rd, rx
        .endm