| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame^] | 1 | /* arch/arm/mach-lh7a40x/include/mach/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 <mach/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 |
| 19 | #define nTxRdy (0x20) /* Not TxReady (literally Tx FIFO full) */ |
| 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 | |
| 25 | static inline void putc(int ch) |
| 26 | { |
| 27 | while (UART_STATUS & nTxRdy) |
| 28 | barrier(); |
| 29 | UART_DATA = ch; |
| 30 | } |
| 31 | |
| 32 | static inline void flush(void) |
| 33 | { |
| 34 | } |
| 35 | |
| 36 | /* NULL functions; we don't presently need them */ |
| 37 | #define arch_decomp_setup() |
| 38 | #define arch_decomp_wdog() |