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/usr/src/linux-aws-headers-4.15.0-1057/arch/arm/include/debug/pl01x.S
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/* arch/arm/include/debug/pl01x.S * * Debugging macro include header * * Copyright (C) 1994-1999 Russell King * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * */ #include <linux/amba/serial.h> #ifdef CONFIG_DEBUG_ZTE_ZX #undef UART01x_DR #undef UART01x_FR #define UART01x_DR 0x04 #define UART01x_FR 0x14 #endif #ifdef CONFIG_DEBUG_UART_PHYS .macro addruart, rp, rv, tmp ldr \rp, =CONFIG_DEBUG_UART_PHYS ldr \rv, =CONFIG_DEBUG_UART_VIRT .endm #endif .macro senduart,rd,rx strb \rd, [\rx, #UART01x_DR] .endm .macro waituart,rd,rx 1001: ldr \rd, [\rx, #UART01x_FR] ARM_BE8( rev \rd, \rd ) tst \rd, #UART01x_FR_TXFF bne 1001b .endm .macro busyuart,rd,rx 1001: ldr \rd, [\rx, #UART01x_FR] ARM_BE8( rev \rd, \rd ) tst \rd, #UART01x_FR_BUSY bne 1001b .endm
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