1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Renesas SCIF(A) debugging macro include header 4 * 5 * Based on r8a7790.S 6 * 7 * Copyright (C) 2012-2013 Renesas Electronics Corporation 8 * Copyright (C) 1994-1999 Russell King 9 */ 10 11#define SCIF_PHYS CONFIG_DEBUG_UART_PHYS 12#define SCIF_VIRT ((SCIF_PHYS & 0x00ffffff) | 0xfd000000) 13 14#if CONFIG_DEBUG_UART_PHYS < 0xe6e00000 15/* SCIFA */ 16#define FTDR 0x20 17#define FSR 0x14 18#else 19/* SCIF */ 20#define FTDR 0x0c 21#define FSR 0x10 22#endif 23 24#define TDFE (1 << 5) 25#define TEND (1 << 6) 26 27 .macro addruart, rp, rv, tmp 28 ldr \rp, =SCIF_PHYS 29 ldr \rv, =SCIF_VIRT 30 .endm 31 32 .macro waituart, rd, rx 331001: ldrh \rd, [\rx, #FSR] 34 tst \rd, #TDFE 35 beq 1001b 36 .endm 37 38 .macro senduart, rd, rx 39 strb \rd, [\rx, #FTDR] 40 ldrh \rd, [\rx, #FSR] 41 bic \rd, \rd, #TEND 42 strh \rd, [\rx, #FSR] 43 .endm 44 45 .macro busyuart, rd, rx 461001: ldrh \rd, [\rx, #FSR] 47 tst \rd, #TEND 48 beq 1001b 49 .endm 50