2 * Copyright (C) 1996 Paul Mackerras.
3 * Copyright (C) 2000 Dan Malek.
4 * Quick hack of Paul's code to make XMON work on 8xx processors. Lots
5 * of assumptions, like the SMC1 is used, it has been initialized by the
6 * loader at some point, and we can just stuff and suck bytes.
7 * We rely upon the 8xx uart driver to support us, as the interface
8 * changes between boot up and operational phases of the kernel.
10 #include <linux/string.h>
11 #include <asm/machdep.h>
14 #include <linux/kernel.h>
15 #include <asm/8xx_immap.h>
16 #include <asm/mpc8xx.h>
17 #include <asm/commproc.h>
20 extern int xmon_8xx_write(char *str, int nb);
21 extern int xmon_8xx_read_poll(void);
22 extern int xmon_8xx_read_char(void);
24 void xmon_map_scc(void)
26 cpmp = (cpm8xx_t *)&(((immap_t *)IMAP_ADDR)->im_cpm);
29 void xmon_init_scc(void);
31 int xmon_write(void *ptr, int nb)
33 return(xmon_8xx_write(ptr, nb));
36 int xmon_readchar(void)
38 return xmon_8xx_read_char();
41 int xmon_read_poll(void)
43 return(xmon_8xx_read_poll());