| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* |
| 2 | * arch/arm/mach-prima2/include/mach/debug-macro.S |
| 3 | * |
| 4 | * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. |
| 5 | * |
| 6 | * Licensed under GPLv2 or later. |
| 7 | */ |
| 8 | |
| 9 | #define SIRF_LLUART_TXFIFO_STATUS 0x0114 |
| 10 | #define SIRF_LLUART_TXFIFO_DATA 0x0118 |
| 11 | |
| 12 | #define SIRF_LLUART_TXFIFO_FULL (1 << 5) |
| 13 | |
| 14 | #ifdef CONFIG_DEBUG_SIRFATLAS7_UART0 |
| 15 | #define SIRF_LLUART_TXFIFO_EMPTY (1 << 8) |
| 16 | #else |
| 17 | #define SIRF_LLUART_TXFIFO_EMPTY (1 << 6) |
| 18 | #endif |
| 19 | |
| 20 | |
| 21 | .macro addruart, rp, rv, tmp |
| 22 | ldr \rp, =CONFIG_DEBUG_UART_PHYS @ physical |
| 23 | ldr \rv, =CONFIG_DEBUG_UART_VIRT @ virtual |
| 24 | .endm |
| 25 | |
| 26 | .macro senduart,rd,rx |
| 27 | str \rd, [\rx, #SIRF_LLUART_TXFIFO_DATA] |
| 28 | .endm |
| 29 | |
| 30 | .macro busyuart,rd,rx |
| 31 | .endm |
| 32 | |
| 33 | .macro waituart,rd,rx |
| 34 | 1001: ldr \rd, [\rx, #SIRF_LLUART_TXFIFO_STATUS] |
| 35 | tst \rd, #SIRF_LLUART_TXFIFO_EMPTY |
| 36 | beq 1001b |
| 37 | .endm |
| 38 | |