| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 2 | /* |
| 3 | * arch/arm/mach-prima2/include/mach/debug-macro.S |
| 4 | * |
| 5 | * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. |
| 6 | */ |
| 7 | |
| 8 | #define SIRF_LLUART_TXFIFO_STATUS 0x0114 |
| 9 | #define SIRF_LLUART_TXFIFO_DATA 0x0118 |
| 10 | |
| 11 | #define SIRF_LLUART_TXFIFO_FULL (1 << 5) |
| 12 | |
| 13 | #ifdef CONFIG_DEBUG_SIRFATLAS7_UART0 |
| 14 | #define SIRF_LLUART_TXFIFO_EMPTY (1 << 8) |
| 15 | #else |
| 16 | #define SIRF_LLUART_TXFIFO_EMPTY (1 << 6) |
| 17 | #endif |
| 18 | |
| 19 | |
| 20 | .macro addruart, rp, rv, tmp |
| 21 | ldr \rp, =CONFIG_DEBUG_UART_PHYS @ physical |
| 22 | ldr \rv, =CONFIG_DEBUG_UART_VIRT @ virtual |
| 23 | .endm |
| 24 | |
| 25 | .macro senduart,rd,rx |
| 26 | str \rd, [\rx, #SIRF_LLUART_TXFIFO_DATA] |
| 27 | .endm |
| 28 | |
| 29 | .macro busyuart,rd,rx |
| 30 | .endm |
| 31 | |
| 32 | .macro waituart,rd,rx |
| 33 | 1001: ldr \rd, [\rx, #SIRF_LLUART_TXFIFO_STATUS] |
| 34 | tst \rd, #SIRF_LLUART_TXFIFO_EMPTY |
| 35 | beq 1001b |
| 36 | .endm |
| 37 | |