diff options
Diffstat (limited to 'sys/mips/beri/beri_machdep.c')
| -rw-r--r-- | sys/mips/beri/beri_machdep.c | 51 |
1 files changed, 50 insertions, 1 deletions
diff --git a/sys/mips/beri/beri_machdep.c b/sys/mips/beri/beri_machdep.c index b4c810f..f532f60 100644 --- a/sys/mips/beri/beri_machdep.c +++ b/sys/mips/beri/beri_machdep.c @@ -132,6 +132,46 @@ platform_reset(void) __asm__ __volatile("wait"); } +#ifdef FDT +/* Parse cmd line args as env - copied from xlp_machdep. */ +/* XXX-BZ this should really be centrally provided for all (boot) code. */ +static void +_parse_bootargs(char *cmdline) +{ + char *n, *v; + + while ((v = strsep(&cmdline, " \n")) != NULL) { + if (*v == '\0') + continue; + if (*v == '-') { + while (*v != '\0') { + v++; + switch (*v) { + case 'a': boothowto |= RB_ASKNAME; break; + /* Someone should simulate that ;-) */ + case 'C': boothowto |= RB_CDROM; break; + case 'd': boothowto |= RB_KDB; break; + case 'D': boothowto |= RB_MULTIPLE; break; + case 'm': boothowto |= RB_MUTE; break; + case 'g': boothowto |= RB_GDB; break; + case 'h': boothowto |= RB_SERIAL; break; + case 'p': boothowto |= RB_PAUSE; break; + case 'r': boothowto |= RB_DFLTROOT; break; + case 's': boothowto |= RB_SINGLE; break; + case 'v': boothowto |= RB_VERBOSE; break; + } + } + } else { + n = strsep(&v, "="); + if (v == NULL) + setenv(n, "1"); + else + setenv(n, v); + } + } +} +#endif + void platform_start(__register_t a0, __register_t a1, __register_t a2, __register_t a3) @@ -144,7 +184,9 @@ platform_start(__register_t a0, __register_t a1, __register_t a2, char **envp = (char **)a2; long memsize; #ifdef FDT + char buf[2048]; /* early stack supposedly big enough */ vm_offset_t dtbp; + phandle_t chosen; void *kmdp; #endif int i; @@ -201,7 +243,6 @@ platform_start(__register_t a0, __register_t a1, __register_t a2, while (1); if (OF_init((void *)dtbp) != 0) while (1); -#endif /* * Configure more boot-time parameters passed in by loader. @@ -210,6 +251,14 @@ platform_start(__register_t a0, __register_t a1, __register_t a2, kern_envp = MD_FETCH(kmdp, MODINFOMD_ENVP, char *); /* + * Get bootargs from FDT if specified. + */ + chosen = OF_finddevice("/chosen"); + if (OF_getprop(chosen, "bootargs", buf, sizeof(buf)) != -1) + _parse_bootargs(buf); +#endif + + /* * XXXRW: We have no way to compare wallclock time to cycle rate on * BERI, so for now assume we run at the MALTA default (100MHz). */ |
