diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2014-09-25 21:48:18 (GMT) |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2014-09-25 21:50:02 (GMT) |
| commit | e1e85e76ef327d4b013453ddd7b2c673aa304a71 (patch) | |
| tree | 3fe22edbe9bf4d4ec6de24f7ad53f73ba23b21ac /arch/arm/include/debug | |
| parent | 57e33ff1dba139a70723e922c5838499610b60c1 (diff) | |
| parent | e076e96227ef6b5b66cfdd79e75401bd2f6d532f (diff) | |
| download | linux-e1e85e76ef327d4b013453ddd7b2c673aa304a71.tar.xz | |
Merge tag 'bcm63138-v4' of http://github.com/brcm/linux into next/soc
Merge "ARM: BCM: Broadcom BCM63138 support" from Florian Fainelli:
This patchset adds very minimal support for the BCM63138 SoC which is
a xDSL SoC using a dual Cortex A9 CPU complex.
* tag 'bcm63138-v4' of http://github.com/brcm/linux:
MAINTAINERS: add entry for the Broadcom BCM63xx ARM SoCs
ARM: BCM63XX: add BCM963138DVT Reference platform DTS
ARM: BCM63XX: add BCM63138 minimal Device Tree
ARM: BCM63XX: add low-level UART debug support
ARM: BCM63XX: add basic support for the Broadcom BCM63138 DSL SoC
Conflicts:
arch/arm/Kconfig.debug
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/include/debug')
| -rw-r--r-- | arch/arm/include/debug/bcm63xx.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/include/debug/bcm63xx.S b/arch/arm/include/debug/bcm63xx.S new file mode 100644 index 0000000..e7164d5 --- /dev/null +++ b/arch/arm/include/debug/bcm63xx.S @@ -0,0 +1,33 @@ +/* + * Broadcom BCM63xx low-level UART debug + * + * Copyright (C) 2014 Broadcom Corporation + * + * 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. + */ + +#include <linux/serial_bcm63xx.h> + + .macro addruart, rp, rv, tmp + ldr \rp, =CONFIG_DEBUG_UART_PHYS + ldr \rv, =CONFIG_DEBUG_UART_VIRT + .endm + + .macro senduart, rd, rx + /* word access do not work */ + strb \rd, [\rx, #UART_FIFO_REG] + .endm + + .macro waituart, rd, rx +1001: ldr \rd, [\rx, #UART_IR_REG] + tst \rd, #(1 << UART_IR_TXEMPTY) + beq 1001b + .endm + + .macro busyuart, rd, rx +1002: ldr \rd, [\rx, #UART_IR_REG] + tst \rd, #(1 << UART_IR_TXTRESH) + beq 1002b + .endm |