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authorArnd Bergmann <arnd@arndb.de>2015-12-03 20:27:53 +0300
committerArnd Bergmann <arnd@arndb.de>2015-12-16 01:43:29 +0300
commit0045c0dd2f643b74f7089253d6ffa1bbb72d3d87 (patch)
treec3aa890a378a2eff31c519295e1f3f7b9f662f30 /arch/arm/mach-footbridge
parent59bd4c3827f42c19e530326761e7094eaa28aac3 (diff)
downloadlinux-0045c0dd2f643b74f7089253d6ffa1bbb72d3d87.tar.xz
ARM: debug-ll: rework footbridge handling
Footbridge has two debug ports that are handled a bit differently: The 8250 port uses the normal debug/8250.S implementation that is shared with a lot of other platforms, but it relies on the DEBUG_UART_8250 option to be turned on automatically instead of being selected by DEBUG_FOOTBRIDGE_COM1 as we do for most other platforms. I'm changing this to use a 'select' and change the dependency to the debug symbol rather than the platform symbol for consistency. The DC21285 UART has a separate top-level option, and relies on the traditional include/mach/debug-macro.S method. With the s3c64xx multiplatform series queued up for 4.5, it is now the last one that does this, so by moving this file to include/debug/dc21285.S, we can get all platforms to do things the same way. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-footbridge')
-rw-r--r--arch/arm/mach-footbridge/include/mach/debug-macro.S42
1 files changed, 0 insertions, 42 deletions
diff --git a/arch/arm/mach-footbridge/include/mach/debug-macro.S b/arch/arm/mach-footbridge/include/mach/debug-macro.S
deleted file mode 100644
index 02247f313e94..000000000000
--- a/arch/arm/mach-footbridge/include/mach/debug-macro.S
+++ /dev/null
@@ -1,42 +0,0 @@
-/* arch/arm/mach-footbridge/include/mach/debug-macro.S
- *
- * Debugging macro include header
- *
- * Copyright (C) 1994-1999 Russell King
- * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
- *
- * 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 <asm/hardware/dec21285.h>
-
-#include <mach/hardware.h>
- /* For EBSA285 debugging */
- .equ dc21285_high, ARMCSR_BASE & 0xff000000
- .equ dc21285_low, ARMCSR_BASE & 0x00ffffff
-
- .macro addruart, rp, rv, tmp
- .if dc21285_low
- mov \rp, #dc21285_low
- .else
- mov \rp, #0
- .endif
- orr \rv, \rp, #dc21285_high
- orr \rp, \rp, #0x42000000
- .endm
-
- .macro senduart,rd,rx
- str \rd, [\rx, #0x160] @ UARTDR
- .endm
-
- .macro busyuart,rd,rx
-1001: ldr \rd, [\rx, #0x178] @ UARTFLG
- tst \rd, #1 << 3
- bne 1001b
- .endm
-
- .macro waituart,rd,rx
- .endm