From 59bba2a9854a2de869440ff799d8e3dfd4779543 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 6 Sep 2012 14:14:46 -0500 Subject: ARM: picoxcell: move debug macros to include/debug Move picoxcell debug-macro.S over to common debug macro directory. Signed-off-by: Rob Herring Cc: Jamie Iles --- arch/arm/include/debug/picoxcell.S | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 arch/arm/include/debug/picoxcell.S (limited to 'arch/arm/include/debug') diff --git a/arch/arm/include/debug/picoxcell.S b/arch/arm/include/debug/picoxcell.S new file mode 100644 index 00000000000..7419deb1b94 --- /dev/null +++ b/arch/arm/include/debug/picoxcell.S @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2011 Picochip Ltd., Jamie Iles + * + * 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. + * + * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit + * accesses to the 8250. + */ +#include + +#define UART_SHIFT 2 +#define PICOXCELL_UART1_BASE 0x80230000 +#define PHYS_TO_IO(x) (((x) & 0x00ffffff) | 0xfe000000) + + .macro addruart, rp, rv, tmp + ldr \rv, =PHYS_TO_IO(PICOXCELL_UART1_BASE) + ldr \rp, =PICOXCELL_UART1_BASE + .endm + + .macro senduart,rd,rx + str \rd, [\rx, #UART_TX << UART_SHIFT] + .endm + + .macro busyuart,rd,rx +1002: ldr \rd, [\rx, #UART_LSR << UART_SHIFT] + and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE + teq \rd, #UART_LSR_TEMT | UART_LSR_THRE + bne 1002b + .endm + + /* The UART's don't have any flow control IO's wired up. */ + .macro waituart,rd,rx + .endm -- cgit v1.2.3-70-g09d2