| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Debugging macro include header for Conexant Digicolor USART |
| * |
| * Copyright (C) 2014 Paradox Innovation Ltd. |
| */ |
| |
| #define UA0_STATUS 0x0742 |
| #define UA0_EMI_REC 0x0744 |
| |
| #define UA0_STATUS_TX_READY 0x40 |
| |
| #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, #UA0_EMI_REC] |
| .endm |
| |
| .macro waituartcts,rd,rx |
| .endm |
| |
| .macro waituarttxrdy,rd,rx |
| .endm |
| |
| .macro busyuart,rd,rx |
| 1001: ldrb \rd, [\rx, #UA0_STATUS] |
| tst \rd, #UA0_STATUS_TX_READY |
| beq 1001b |
| .endm |
