projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| a09e64fb | 2 | * arch/arm/mach-sa1100/include/mach/uncompress.h |
| 1da177e4 | 3 | * |
| 2f82af08 | 4 | * (C) 1999 Nicolas Pitre <nico@fluxnic.net> |
| 1da177e4 LT |
5 | * |
| 6 | * Reorganised to be machine independent. | |
| 7 | */ | |
| 8 | ||
| 9 | #include "hardware.h" | |
| 10 | ||
| 3169663a RK |
11 | #define IOMEM(x) (x) |
| 12 | ||
| 1da177e4 LT |
13 | /* |
| 14 | * The following code assumes the serial port has already been | |
| 15 | * initialized by the bootloader. We search for the first enabled | |
| 16 | * port in the most probable order. If you didn't setup a port in | |
| 17 | * your bootloader then nothing will appear (which might be desired). | |
| 18 | */ | |
| 19 | ||
| 20 | #define UART(x) (*(volatile unsigned long *)(serial_port + (x))) | |
| 21 | ||
| a081568d | 22 | static void putc(int c) |
| 1da177e4 LT |
23 | { |
| 24 | unsigned long serial_port; | |
| 25 | ||
| 26 | do { | |
| 27 | serial_port = _Ser3UTCR0; | |
| 28 | if (UART(UTCR3) & UTCR3_TXE) break; | |
| 29 | serial_port = _Ser1UTCR0; | |
| 30 | if (UART(UTCR3) & UTCR3_TXE) break; | |
| 31 | serial_port = _Ser2UTCR0; | |
| 32 | if (UART(UTCR3) & UTCR3_TXE) break; | |
| 33 | return; | |
| 34 | } while (0); | |
| 35 | ||
| a081568d RK |
36 | /* wait for space in the UART's transmitter */ |
| 37 | while (!(UART(UTSR1) & UTSR1_TNF)) | |
| 38 | barrier(); | |
| 1da177e4 | 39 | |
| a081568d RK |
40 | /* send the character out. */ |
| 41 | UART(UTDR) = c; | |
| 42 | } | |
| 1da177e4 | 43 | |
| a081568d RK |
44 | static inline void flush(void) |
| 45 | { | |
| 1da177e4 LT |
46 | } |
| 47 | ||
| 48 | /* | |
| 49 | * Nothing to do for these | |
| 50 | */ | |
| 51 | #define arch_decomp_setup() | |
| 52 | #define arch_decomp_wdog() |