diff options
Diffstat (limited to 'include/asm-arm/arch-sa1100/uncompress.h')
| -rw-r--r-- | include/asm-arm/arch-sa1100/uncompress.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/include/asm-arm/arch-sa1100/uncompress.h b/include/asm-arm/arch-sa1100/uncompress.h new file mode 100644 index 00000000000..43453501ee6 --- /dev/null +++ b/include/asm-arm/arch-sa1100/uncompress.h @@ -0,0 +1,53 @@ +/* + * linux/include/asm-arm/arch-brutus/uncompress.h + * + * (C) 1999 Nicolas Pitre <nico@cam.org> + * + * Reorganised to be machine independent. + */ + +#include "hardware.h" + +/* + * The following code assumes the serial port has already been + * initialized by the bootloader. We search for the first enabled + * port in the most probable order. If you didn't setup a port in + * your bootloader then nothing will appear (which might be desired). + */ + +#define UART(x) (*(volatile unsigned long *)(serial_port + (x))) + +static void putstr( const char *s ) +{ + unsigned long serial_port; + + do { + serial_port = _Ser3UTCR0; + if (UART(UTCR3) & UTCR3_TXE) break; + serial_port = _Ser1UTCR0; + if (UART(UTCR3) & UTCR3_TXE) break; + serial_port = _Ser2UTCR0; + if (UART(UTCR3) & UTCR3_TXE) break; + return; + } while (0); + + for (; *s; s++) { + /* wait for space in the UART's transmitter */ + while (!(UART(UTSR1) & UTSR1_TNF)); + + /* send the character out. */ + UART(UTDR) = *s; + + /* if a LF, also do CR... */ + if (*s == 10) { + while (!(UART(UTSR1) & UTSR1_TNF)); + UART(UTDR) = 13; + } + } +} + +/* + * Nothing to do for these + */ +#define arch_decomp_setup() +#define arch_decomp_wdog() |