| Arnd Bergmann | 67bdb28 | 2013-03-19 13:52:14 +0100 | [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 | #if defined(CONFIG_DEBUG_SIRFPRIMA2_UART1) |
| 10 | #define SIRFSOC_UART1_PA_BASE 0xb0060000 |
| 11 | #elif defined(CONFIG_DEBUG_SIRFMARCO_UART1) |
| 12 | #define SIRFSOC_UART1_PA_BASE 0xcc060000 |
| 13 | #else |
| 14 | #define SIRFSOC_UART1_PA_BASE 0 |
| 15 | #endif |
| 16 | |
| 17 | #define SIRFSOC_UART1_VA_BASE 0xFEC60000 |
| 18 | |
| 19 | #define SIRFSOC_UART_TXFIFO_STATUS 0x0114 |
| 20 | #define SIRFSOC_UART_TXFIFO_DATA 0x0118 |
| 21 | |
| 22 | #define SIRFSOC_UART1_TXFIFO_FULL (1 << 5) |
| 23 | #define SIRFSOC_UART1_TXFIFO_EMPTY (1 << 6) |
| 24 | |
| 25 | .macro addruart, rp, rv, tmp |
| 26 | ldr \rp, =SIRFSOC_UART1_PA_BASE @ physical |
| 27 | ldr \rv, =SIRFSOC_UART1_VA_BASE @ virtual |
| 28 | .endm |
| 29 | |
| 30 | .macro senduart,rd,rx |
| 31 | str \rd, [\rx, #SIRFSOC_UART_TXFIFO_DATA] |
| 32 | .endm |
| 33 | |
| 34 | .macro busyuart,rd,rx |
| 35 | .endm |
| 36 | |
| 37 | .macro waituart,rd,rx |
| 38 | 1001: ldr \rd, [\rx, #SIRFSOC_UART_TXFIFO_STATUS] |
| 39 | tst \rd, #SIRFSOC_UART1_TXFIFO_EMPTY |
| 40 | beq 1001b |
| 41 | .endm |
| 42 | |