projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 73a59c1c | 1 | /* |
| 73a59c1c SP |
2 | * Copyright (C) 2003-2005 SAN People |
| 3 | * | |
| 4 | * Debugging macro include header | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License version 2 as | |
| 8 | * published by the Free Software Foundation. | |
| 9 | * | |
| 10 | */ | |
| 11 | ||
| 5a5a6451 | 12 | #ifdef CONFIG_MMU |
| 5f58c970 | 13 | #define AT91_IO_P2V(x) ((x) - 0x01000000) |
| 5a5a6451 AB |
14 | #else |
| 15 | #define AT91_IO_P2V(x) (x) | |
| 16 | #endif | |
| 5f58c970 | 17 | |
| 6f112a08 AB |
18 | #define CONFIG_DEBUG_UART_VIRT AT91_IO_P2V(CONFIG_DEBUG_UART_PHYS) |
| 19 | ||
| 5f58c970 AB |
20 | #define AT91_DBGU_SR (0x14) /* Status Register */ |
| 21 | #define AT91_DBGU_THR (0x1c) /* Transmitter Holding Register */ | |
| 22 | #define AT91_DBGU_TXRDY (1 << 1) /* Transmitter Ready */ | |
| 23 | #define AT91_DBGU_TXEMPTY (1 << 9) /* Transmitter Empty */ | |
| 24 | ||
| 639da5ee | 25 | .macro addruart, rp, rv, tmp |
| 6f112a08 AB |
26 | ldr \rp, =CONFIG_DEBUG_UART_PHYS @ System peripherals (phys address) |
| 27 | ldr \rv, =CONFIG_DEBUG_UART_VIRT @ System peripherals (virt address) | |
| 73a59c1c SP |
28 | .endm |
| 29 | ||
| 30 | .macro senduart,rd,rx | |
| 1ff5b1b4 | 31 | strb \rd, [\rx, #(AT91_DBGU_THR)] @ Write to Transmitter Holding Register |
| 73a59c1c SP |
32 | .endm |
| 33 | ||
| 34 | .macro waituart,rd,rx | |
| 1ff5b1b4 JCPV |
35 | 1001: ldr \rd, [\rx, #(AT91_DBGU_SR)] @ Read Status Register |
| 36 | tst \rd, #AT91_DBGU_TXRDY @ DBGU_TXRDY = 1 when ready to transmit | |
| 73a59c1c SP |
37 | beq 1001b |
| 38 | .endm | |
| 39 | ||
| 40 | .macro busyuart,rd,rx | |
| 1ff5b1b4 JCPV |
41 | 1001: ldr \rd, [\rx, #(AT91_DBGU_SR)] @ Read Status Register |
| 42 | tst \rd, #AT91_DBGU_TXEMPTY @ DBGU_TXEMPTY = 1 when transmission complete | |
| 73a59c1c SP |
43 | beq 1001b |
| 44 | .endm | |
| 45 |