From d5bd4e8df43ca930ff3892963f6b3bf7984038e3 Mon Sep 17 00:00:00 2001 From: Oleksij Rempel Date: Mon, 24 Nov 2014 12:08:28 +0100 Subject: 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 Signed-off-by: Arnd Bergmann --- arch/arm/include/debug/asm9260.S | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 arch/arm/include/debug/asm9260.S (limited to 'arch/arm/include/debug') diff --git a/arch/arm/include/debug/asm9260.S b/arch/arm/include/debug/asm9260.S new file mode 100644 index 000000000000..292f85b49fca --- /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 + * + * 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 -- cgit v1.2.3-59-g8ed1b