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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728293031323334353637/* SPDX-License-Identifier: GPL-2.0-only *//* * Copyright 2013 Freescale Semiconductor, Inc. */
#define VF_UART0_BASE_ADDR 0x40027000#define VF_UART1_BASE_ADDR 0x40028000#define VF_UART2_BASE_ADDR 0x40029000#define VF_UART3_BASE_ADDR 0x4002a000#define VF_UART_BASE_ADDR(n) VF_UART##n##_BASE_ADDR#define VF_UART_BASE(n) VF_UART_BASE_ADDR(n)#define VF_UART_PHYSICAL_BASE VF_UART_BASE(CONFIG_DEBUG_VF_UART_PORT)
#define VF_UART_VIRTUAL_BASE 0xfe000000
.macro addruart, rp, rv, tmp ldr \rp, =VF_UART_PHYSICAL_BASE @ physical and \rv, \rp, #0xffffff @ offset within 16MB section add \rv, \rv, #VF_UART_VIRTUAL_BASE .endm
.macro senduart, rd, rx strb \rd, [\rx, #0x7] @ Data Register .endm
.macro busyuart, rd, rx1001: ldrb \rd, [\rx, #0x4] @ Status Register 1 tst \rd, #1 << 6 @ TC beq 1001b @ wait until transmit done .endm
.macro waituartcts,rd,rx .endm
.macro waituarttxrdy,rd,rx .endm