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c53c9cf6 AV |
1 | /* |
2 | * include/asm-arm/arch-ks8695/debug-macro.S | |
3 | * | |
4 | * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> | |
5 | * Copyright (C) 2006 Simtec Electronics | |
6 | * | |
7 | * KS8695 - Debug macros | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | */ | |
13 | ||
be509729 | 14 | #include <asm/arch/hardware.h> |
c53c9cf6 AV |
15 | #include <asm/arch/regs-uart.h> |
16 | ||
17 | .macro addruart, rx | |
18 | mrc p15, 0, \rx, c1, c0 | |
19 | tst \rx, #1 @ MMU enabled? | |
20 | ldreq \rx, =KS8695_UART_PA @ physical base address | |
21 | ldrne \rx, =KS8695_UART_VA @ virtual base address | |
22 | .endm | |
23 | ||
24 | .macro senduart, rd, rx | |
25 | str \rd, [\rx, #KS8695_URTH] @ Write to Transmit Holding Register | |
26 | .endm | |
27 | ||
28 | .macro busyuart, rd, rx | |
29 | 1001: ldr \rd, [\rx, #KS8695_URLS] @ Read Line Status Register | |
30 | tst \rd, #URLS_URTE @ Holding & Shift registers empty? | |
31 | beq 1001b | |
32 | .endm | |
33 | ||
34 | .macro waituart, rd, rx | |
35 | 1001: ldr \rd, [\rx, #KS8695_URLS] @ Read Line Status Register | |
36 | tst \rd, #URLS_URTHRE @ Holding Register empty? | |
37 | beq 1001b | |
38 | .endm |