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| author | Daniel Thompson <daniel.thompson@linaro.org> | 2015-01-09 18:33:36 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-01-21 15:49:38 +0000 |
| commit | abbfb21efcd704e8b858e94e327bb014386ba0dd (patch) | |
| tree | b05a2fb88bae1bf0c8563c20172c39891adc9d72 /arch/arm/include/debug | |
| parent | 6f5194553c84c3eb412c0cc59554b85be128f43d (diff) | |
| download | talos-obmc-linux-abbfb21efcd704e8b858e94e327bb014386ba0dd.tar.gz talos-obmc-linux-abbfb21efcd704e8b858e94e327bb014386ba0dd.zip | |
ARM: 8270/1: ks8695: Migrate debug_ll macros to shared directory
As part of the migration a couple of uart definitions have been copied
from of the platform specific header files.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Arnd Bergmann <arnd.bergmann@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include/debug')
| -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 @@ +/* + * arch/arm/include/debug/ks8695.S + * + * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> + * Copyright (C) 2006 Simtec Electronics + * + * KS8695 - Debug macros + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#define KS8695_UART_PA 0x03ffe000 +#define KS8695_UART_VA 0xf00fe000 +#define KS8695_URTH (0x04) +#define KS8695_URLS (0x14) +#define URLS_URTE (1 << 6) +#define URLS_URTHRE (1 << 5) + + .macro addruart, rp, rv, tmp + ldr \rp, =KS8695_UART_PA @ physical base address + ldr \rv, =KS8695_UART_VA @ virtual base address + .endm + + .macro senduart, rd, rx + str \rd, [\rx, #KS8695_URTH] @ Write to Transmit Holding Register + .endm + + .macro busyuart, rd, rx +1001: ldr \rd, [\rx, #KS8695_URLS] @ Read Line Status Register + tst \rd, #URLS_URTE @ Holding & Shift registers empty? + beq 1001b + .endm + + .macro waituart, rd, rx +1001: ldr \rd, [\rx, #KS8695_URLS] @ Read Line Status Register + tst \rd, #URLS_URTHRE @ Holding Register empty? + beq 1001b + .endm |
