diff options
| author | Oleksij Rempel <linux@rempel-privat.de> | 2014-11-24 12:08:28 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2014-11-28 15:08:06 +0100 |
| commit | d5bd4e8df43ca930ff3892963f6b3bf7984038e3 (patch) | |
| tree | 39a129eee147cfe4de70561d1ddcd3daea0f1b03 /arch/arm/include | |
| parent | d9bfc86dc69af78fb42fe075f9f2576880fd22a4 (diff) | |
ARM: add lolevel debug support for asm9260
Since there is no public documentation, this patch also provide register
offsets for different UART units on this SoC.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/debug/asm9260.S | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/include/debug/asm9260.S b/arch/arm/include/debug/asm9260.S new file mode 100644 index 00000000000..292f85b49fc --- /dev/null +++ b/arch/arm/include/debug/asm9260.S @@ -0,0 +1,29 @@ +/* Debugging macro include header + * + * Copyright (C) 1994-1999 Russell King + * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks + * Modified for ASM9260 by Oleksij Remepl <linux@rempel-privat.de> + * + * 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. + * + */ + + .macro addruart, rp, rv, tmp + ldr \rp, = CONFIG_DEBUG_UART_PHYS + ldr \rv, = CONFIG_DEBUG_UART_VIRT + .endm + + .macro waituart,rd,rx + .endm + + .macro senduart,rd,rx + str \rd, [\rx, #0x50] @ TXDATA + .endm + + .macro busyuart,rd,rx +1002: ldr \rd, [\rx, #0x60] @ STAT + tst \rd, #1 << 27 @ TXEMPTY + beq 1002b @ wait until transmit done + .endm |