diff options
Diffstat (limited to 'include/asm-arm/arch-l7200/uncompress.h')
| -rw-r--r-- | include/asm-arm/arch-l7200/uncompress.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/include/asm-arm/arch-l7200/uncompress.h b/include/asm-arm/arch-l7200/uncompress.h new file mode 100644 index 00000000000..1caa2b560f5 --- /dev/null +++ b/include/asm-arm/arch-l7200/uncompress.h @@ -0,0 +1,44 @@ +/* + * linux/include/asm-arm/arch-l7200/uncompress.h + * + * Copyright (C) 2000 Steve Hill (sjhill@cotw.com) + * + * Changelog: + * 05-01-2000 SJH Created + * 05-13-2000 SJH Filled in function bodies + * 07-26-2000 SJH Removed hard coded buad rate + */ + +#include <asm/hardware.h> + +#define IO_UART IO_START + 0x00044000 + +#define __raw_writeb(v,p) (*(volatile unsigned char *)(p) = (v)) +#define __raw_readb(p) (*(volatile unsigned char *)(p)) + +static __inline__ void putc(char c) +{ + while(__raw_readb(IO_UART + 0x18) & 0x20 || + __raw_readb(IO_UART + 0x18) & 0x08); + __raw_writeb(c, IO_UART + 0x00); +} + +static void putstr(const char *s) +{ + while (*s) { + if (*s == 10) { /* If a LF, add CR */ + putc(10); + putc(13); + } + putc(*(s++)); + } +} + +static __inline__ void arch_decomp_setup(void) +{ + __raw_writeb(0x00, IO_UART + 0x08); /* Set HSB */ + __raw_writeb(0x00, IO_UART + 0x20); /* Disable IRQs */ + __raw_writeb(0x01, IO_UART + 0x14); /* Enable UART */ +} + +#define arch_decomp_wdog() |