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Diffstat (limited to 'arch/arm/include/debug/ks8695.S')
-rw-r--r-- | arch/arm/include/debug/ks8695.S | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/include/debug/ks8695.S b/arch/arm/include/debug/ks8695.S new file mode 100644 index 000000000000..961da1f32ab3 --- /dev/null +++ b/arch/arm/include/debug/ks8695.S | |||
@@ -0,0 +1,40 @@ | |||
1 | /* | ||
2 | * arch/arm/include/debug/ks8695.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 | |||
14 | #define KS8695_UART_PA 0x03ffe000 | ||
15 | #define KS8695_UART_VA 0xf00fe000 | ||
16 | #define KS8695_URTH (0x04) | ||
17 | #define KS8695_URLS (0x14) | ||
18 | #define URLS_URTE (1 << 6) | ||
19 | #define URLS_URTHRE (1 << 5) | ||
20 | |||
21 | .macro addruart, rp, rv, tmp | ||
22 | ldr \rp, =KS8695_UART_PA @ physical base address | ||
23 | ldr \rv, =KS8695_UART_VA @ virtual base address | ||
24 | .endm | ||
25 | |||
26 | .macro senduart, rd, rx | ||
27 | str \rd, [\rx, #KS8695_URTH] @ Write to Transmit Holding Register | ||
28 | .endm | ||
29 | |||
30 | .macro busyuart, rd, rx | ||
31 | 1001: ldr \rd, [\rx, #KS8695_URLS] @ Read Line Status Register | ||
32 | tst \rd, #URLS_URTE @ Holding & Shift registers empty? | ||
33 | beq 1001b | ||
34 | .endm | ||
35 | |||
36 | .macro waituart, rd, rx | ||
37 | 1001: ldr \rd, [\rx, #KS8695_URLS] @ Read Line Status Register | ||
38 | tst \rd, #URLS_URTHRE @ Holding Register empty? | ||
39 | beq 1001b | ||
40 | .endm | ||