diff options
Diffstat (limited to 'arch/ppc/xmon/start_8xx.c')
-rw-r--r-- | arch/ppc/xmon/start_8xx.c | 287 |
1 files changed, 0 insertions, 287 deletions
diff --git a/arch/ppc/xmon/start_8xx.c b/arch/ppc/xmon/start_8xx.c deleted file mode 100644 index 3097406..0000000 --- a/arch/ppc/xmon/start_8xx.c +++ /dev/null @@ -1,287 +0,0 @@ -/* - * Copyright (C) 1996 Paul Mackerras. - * Copyright (C) 2000 Dan Malek. - * Quick hack of Paul's code to make XMON work on 8xx processors. Lots - * of assumptions, like the SMC1 is used, it has been initialized by the - * loader at some point, and we can just stuff and suck bytes. - * We rely upon the 8xx uart driver to support us, as the interface - * changes between boot up and operational phases of the kernel. - */ -#include <linux/string.h> -#include <asm/machdep.h> -#include <asm/io.h> -#include <asm/page.h> -#include <linux/kernel.h> -#include <asm/8xx_immap.h> -#include <asm/mpc8xx.h> -#include <asm/cpm1.h> - -extern void xmon_printf(const char *fmt, ...); -extern int xmon_8xx_write(char *str, int nb); -extern int xmon_8xx_read_poll(void); -extern int xmon_8xx_read_char(void); -void prom_drawhex(uint); -void prom_drawstring(const char *str); - -static int use_screen = 1; /* default */ - -#define TB_SPEED 25000000 - -static inline unsigned int readtb(void) -{ - unsigned int ret; - - asm volatile("mftb %0" : "=r" (ret) :); - return ret; -} - -void buf_access(void) -{ -} - -void -xmon_map_scc(void) -{ - - cpmp = (cpm8xx_t *)&(((immap_t *)IMAP_ADDR)->im_cpm); - use_screen = 0; - - prom_drawstring("xmon uses serial port\n"); -} - -static int scc_initialized = 0; - -void xmon_init_scc(void); - -int -xmon_write(void *handle, void *ptr, int nb) -{ - char *p = ptr; - int i, c, ct; - - if (!scc_initialized) - xmon_init_scc(); - - return(xmon_8xx_write(ptr, nb)); -} - -int xmon_wants_key; - -int -xmon_read(void *handle, void *ptr, int nb) -{ - char *p = ptr; - int i; - - if (!scc_initialized) - xmon_init_scc(); - - for (i = 0; i < nb; ++i) { - *p++ = xmon_8xx_read_char(); - } - return i; -} - -int -xmon_read_poll(void) -{ - return(xmon_8xx_read_poll()); -} - -void -xmon_init_scc() -{ - scc_initialized = 1; -} - -#if 0 -extern int (*prom_entry)(void *); - -int -xmon_exit(void) -{ - struct prom_args { - char *service; - } args; - - for (;;) { - args.service = "exit"; - (*prom_entry)(&args); - } -} -#endif - -void *xmon_stdin; -void *xmon_stdout; -void *xmon_stderr; - -void -xmon_init(void) -{ -} - -int -xmon_putc(int c, void *f) -{ - char ch = c; - - if (c == '\n') - xmon_putc('\r', f); - return xmon_write(f, &ch, 1) == 1? c: -1; -} - -int -xmon_putchar(int c) -{ - return xmon_putc(c, xmon_stdout); -} - -int -xmon_fputs(char *str, void *f) -{ - int n = strlen(str); - - return xmon_write(f, str, n) == n? 0: -1; -} - -int -xmon_readchar(void) -{ - char ch; - - for (;;) { - switch (xmon_read(xmon_stdin, &ch, 1)) { - case 1: - return ch; - case -1: - xmon_printf("read(stdin) returned -1\r\n", 0, 0); - return -1; - } - } -} - -static char line[256]; -static char *lineptr; -static int lineleft; - -#if 0 -int xmon_expect(const char *str, unsigned int timeout) -{ - int c; - unsigned int t0; - - timeout *= TB_SPEED; - t0 = readtb(); - do { - lineptr = line; - for (;;) { - c = xmon_read_poll(); - if (c == -1) { - if (readtb() - t0 > timeout) - return 0; - continue; - } - if (c == '\n') - break; - if (c != '\r' && lineptr < &line[sizeof(line) - 1]) - *lineptr++ = c; - } - *lineptr = 0; - } while (strstr(line, str) == NULL); - return 1; -} -#endif - -int -xmon_getchar(void) -{ - int c; - - if (lineleft == 0) { - lineptr = line; - for (;;) { - c = xmon_readchar(); - if (c == -1 || c == 4) - break; - if (c == '\r' || c == '\n') { - *lineptr++ = '\n'; - xmon_putchar('\n'); - break; - } - switch (c) { - case 0177: - case '\b': - if (lineptr > line) { - xmon_putchar('\b'); - xmon_putchar(' '); - xmon_putchar('\b'); - --lineptr; - } - break; - case 'U' & 0x1F: - while (lineptr > line) { - xmon_putchar('\b'); - xmon_putchar(' '); - xmon_putchar('\b'); - --lineptr; - } - break; - default: - if (lineptr >= &line[sizeof(line) - 1]) - xmon_putchar('\a'); - else { - xmon_putchar(c); - *lineptr++ = c; - } - } - } - lineleft = lineptr - line; - lineptr = line; - } - if (lineleft == 0) - return -1; - --lineleft; - return *lineptr++; -} - -char * -xmon_fgets(char *str, int nb, void *f) -{ - char *p; - int c; - - for (p = str; p < str + nb - 1; ) { - c = xmon_getchar(); - if (c == -1) { - if (p == str) - return 0; - break; - } - *p++ = c; - if (c == '\n') - break; - } - *p = 0; - return str; -} - -void -prom_drawhex(uint val) -{ - unsigned char buf[10]; - - int i; - for (i = 7; i >= 0; i--) - { - buf[i] = "0123456789abcdef"[val & 0x0f]; - val >>= 4; - } - buf[8] = '\0'; - xmon_fputs(buf, xmon_stdout); -} - -void -prom_drawstring(const char *str) -{ - xmon_fputs(str, xmon_stdout); -} |