1/*
2 * arch/arm/plat-spear/include/plat/uncompress.h
3 *
4 * Serial port stubs for kernel decompress status messages
5 *
6 * Copyright (C) 2009 ST Microelectronics
7 * Viresh Kumar <viresh.linux@gmail.com>
8 *
9 * This file is licensed under the terms of the GNU General Public
10 * License version 2. This program is licensed "as is" without any
11 * warranty of any kind, whether express or implied.
12 */
13
14#include <linux/io.h>
15#include <linux/amba/serial.h>
16#include <mach/spear.h>
17
18#ifndef __PLAT_UNCOMPRESS_H
19#define __PLAT_UNCOMPRESS_H
20/*
21 * This does not append a newline
22 */
23static inline void putc(int c)
24{
25	void __iomem *base = (void __iomem *)SPEAR_DBG_UART_BASE;
26
27	while (readl_relaxed(base + UART01x_FR) & UART01x_FR_TXFF)
28		barrier();
29
30	writel_relaxed(c, base + UART01x_DR);
31}
32
33static inline void flush(void)
34{
35}
36
37/*
38 * nothing to do
39 */
40#define arch_decomp_setup()
41
42#endif /* __PLAT_UNCOMPRESS_H */
43