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1da177e4 LT |
1 | /* include/asm-arm/arch-lh7a40x/uncompress.h |
2 | * | |
3 | * Copyright (C) 2004 Coastal Environmental Systems | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU General Public License | |
7 | * version 2 as published by the Free Software Foundation. | |
8 | * | |
9 | */ | |
10 | ||
11 | #include <asm/arch/registers.h> | |
12 | ||
13 | #ifndef UART_R_DATA | |
14 | # define UART_R_DATA (0x00) | |
15 | #endif | |
16 | #ifndef UART_R_STATUS | |
17 | # define UART_R_STATUS (0x10) | |
18 | #endif | |
2295196c | 19 | #define nTxRdy (0x20) /* Not TxReady (literally Tx FIFO full) */ |
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20 | |
21 | /* Access UART with physical addresses before MMU is setup */ | |
22 | #define UART_STATUS (*(volatile unsigned long*) (UART2_PHYS + UART_R_STATUS)) | |
23 | #define UART_DATA (*(volatile unsigned long*) (UART2_PHYS + UART_R_DATA)) | |
24 | ||
a081568d | 25 | static inline void putc(int ch) |
1da177e4 LT |
26 | { |
27 | while (UART_STATUS & nTxRdy) | |
a081568d | 28 | barrier(); |
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29 | UART_DATA = ch; |
30 | } | |
31 | ||
a081568d | 32 | static inline void flush(void) |
1da177e4 | 33 | { |
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34 | } |
35 | ||
36 | /* NULL functions; we don't presently need them */ | |
37 | #define arch_decomp_setup() | |
38 | #define arch_decomp_wdog() |