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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 | ||
