1*d2912cb1SThomas Gleixner/* SPDX-License-Identifier: GPL-2.0-only */ 24e218b99SRussell King/* arch/arm/include/debug/pl01x.S 34e218b99SRussell King * 44e218b99SRussell King * Debugging macro include header 54e218b99SRussell King * 64e218b99SRussell King * Copyright (C) 1994-1999 Russell King 74e218b99SRussell King * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks 84e218b99SRussell King*/ 94e218b99SRussell King#include <linux/amba/serial.h> 104e218b99SRussell King 1158d03985SJun Nie#ifdef CONFIG_DEBUG_ZTE_ZX 1258d03985SJun Nie#undef UART01x_DR 1358d03985SJun Nie#undef UART01x_FR 1458d03985SJun Nie#define UART01x_DR 0x04 1558d03985SJun Nie#define UART01x_FR 0x14 1658d03985SJun Nie#endif 1758d03985SJun Nie 184e218b99SRussell King#ifdef CONFIG_DEBUG_UART_PHYS 194e218b99SRussell King .macro addruart, rp, rv, tmp 204e218b99SRussell King ldr \rp, =CONFIG_DEBUG_UART_PHYS 214e218b99SRussell King ldr \rv, =CONFIG_DEBUG_UART_VIRT 224e218b99SRussell King .endm 234e218b99SRussell King#endif 244e218b99SRussell King 254e218b99SRussell King .macro senduart,rd,rx 264e218b99SRussell King strb \rd, [\rx, #UART01x_DR] 274e218b99SRussell King .endm 284e218b99SRussell King 294e218b99SRussell King .macro waituart,rd,rx 304e218b99SRussell King1001: ldr \rd, [\rx, #UART01x_FR] 3176e3faf1SBen Dooks ARM_BE8( rev \rd, \rd ) 324e218b99SRussell King tst \rd, #UART01x_FR_TXFF 334e218b99SRussell King bne 1001b 344e218b99SRussell King .endm 354e218b99SRussell King 364e218b99SRussell King .macro busyuart,rd,rx 374e218b99SRussell King1001: ldr \rd, [\rx, #UART01x_FR] 3876e3faf1SBen Dooks ARM_BE8( rev \rd, \rd ) 394e218b99SRussell King tst \rd, #UART01x_FR_BUSY 404e218b99SRussell King bne 1001b 414e218b99SRussell King .endm 42