blob: d6daeb7e4ef1f40fff91f64aa83778fa5cd1c52b [file] [log] [blame]
Eric Miao49cbe782009-01-20 14:15:18 +08001/*
2 * arch/arm/mach-mmp/include/mach/uncompress.h
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#include <linux/serial_reg.h>
10#include <mach/addr-map.h>
Haojian Zhuang9896de72010-01-12 08:54:50 +080011#include <asm/mach-types.h>
Eric Miao49cbe782009-01-20 14:15:18 +080012
13#define UART1_BASE (APB_PHYS_BASE + 0x36000)
14#define UART2_BASE (APB_PHYS_BASE + 0x17000)
15#define UART3_BASE (APB_PHYS_BASE + 0x18000)
16
Nicolas Pitre8ea0de42011-04-28 17:00:17 -040017volatile unsigned long *UART;
Haojian Zhuang9896de72010-01-12 08:54:50 +080018
Eric Miao49cbe782009-01-20 14:15:18 +080019static inline void putc(char c)
20{
Eric Miao49cbe782009-01-20 14:15:18 +080021 /* UART enabled? */
22 if (!(UART[UART_IER] & UART_IER_UUE))
23 return;
24
25 while (!(UART[UART_LSR] & UART_LSR_THRE))
26 barrier();
27
28 UART[UART_TX] = c;
29}
30
31/*
32 * This does not append a newline
33 */
34static inline void flush(void)
35{
36}
37
Haojian Zhuang9896de72010-01-12 08:54:50 +080038static inline void arch_decomp_setup(void)
39{
Eric Miao7471f462010-03-22 09:39:58 +080040 /* default to UART2 */
41 UART = (unsigned long *)UART2_BASE;
42
Haojian Zhuang9896de72010-01-12 08:54:50 +080043 if (machine_is_avengers_lite())
44 UART = (unsigned long *)UART3_BASE;
45}
46
Eric Miao49cbe782009-01-20 14:15:18 +080047/*
48 * nothing to do
49 */
Haojian Zhuang9896de72010-01-12 08:54:50 +080050
Eric Miao49cbe782009-01-20 14:15:18 +080051#define arch_decomp_wdog()