| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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| 2 | /* |
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| 3 | * Debugging macro include header for Conexant Digicolor USART |
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| 4 | * |
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| 5 | * Copyright (C) 2014 Paradox Innovation Ltd. |
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| 6 | */ |
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| 7 | |
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| 8 | #define UA0_STATUS 0x0742 |
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| 9 | #define UA0_EMI_REC 0x0744 |
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| 10 | |
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| 11 | #define UA0_STATUS_TX_READY 0x40 |
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| 12 | |
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| 13 | #ifdef CONFIG_DEBUG_UART_PHYS |
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| 14 | .macro addruart, rp, rv, tmp |
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| 15 | ldr \rp, =CONFIG_DEBUG_UART_PHYS |
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| 16 | ldr \rv, =CONFIG_DEBUG_UART_VIRT |
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| 17 | .endm |
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| 18 | #endif |
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| 19 | |
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| 20 | .macro senduart,rd,rx |
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| 21 | strb \rd, [\rx, #UA0_EMI_REC] |
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| 22 | .endm |
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| 23 | |
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| 24 | .macro waituartcts,rd,rx |
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| 25 | .endm |
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| 26 | |
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| 27 | .macro waituarttxrdy,rd,rx |
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| 28 | .endm |
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| 29 | |
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| 30 | .macro busyuart,rd,rx |
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| 31 | 1001: ldrb \rd, [\rx, #UA0_STATUS] |
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| 32 | tst \rd, #UA0_STATUS_TX_READY |
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| 33 | beq 1001b |
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| 34 | .endm |
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| 35 | |
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