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- use correct pointer arithmetic in heapsize calculation

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- handle multiple Ofw memory regions when determining mem size
- allow currdev to be set as a loader command-line option.
  parse() is used to allow future options to be processed.
This commit is contained in:
Peter Grehan 2003-12-21 12:11:31 +00:00
parent cafe836a56
commit 69a8dff7af
1 changed files with 29 additions and 7 deletions
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36
sys/boot/ofw/common/main.c
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@ -42,7 +42,9 @@ extern char bootprog_maker[];
phandle_t chosen;
#define HEAP_SIZE 0x40000
static char bootargs[128];
#define HEAP_SIZE 0x80000
void
init_heap(void)
@ -54,7 +56,7 @@ init_heap(void)
OF_enter();
}
setheap(base, base + (HEAP_SIZE / sizeof(base)));
setheap(base, (void *)((int)base + HEAP_SIZE));
}
uint32_t
@ -62,14 +64,21 @@ memsize(void)
{
ihandle_t meminstance;
phandle_t memory;
struct ofw_reg reg;
struct ofw_reg reg[4];
int i;
int sz, memsz;
OF_getprop(chosen, "memory", &meminstance, sizeof(meminstance));
memory = OF_instance_to_package(meminstance);
OF_getprop(memory, "reg", &reg, sizeof(reg));
sz = OF_getprop(memory, "reg", &reg, sizeof(reg));
return (reg.size);
sz /= sizeof(struct ofw_reg);
for (i = 0, memsz = 0; i < sz; i++)
memsz += reg[i].size;
return (memsz);
}
int
@ -78,6 +87,8 @@ main(int (*openfirm)(void *))
int i;
char bootpath[64];
char *ch;
int bargc;
char **bargv;
/*
* Initalise the OpenFirmware routines by giving them the entry point.
@ -122,8 +133,19 @@ main(int (*openfirm)(void *))
printf("\n");
env_setenv("currdev", EV_VOLATILE, bootpath,
ofw_setcurrdev, env_nounset);
/*
* Only parse the first bootarg if present. It should
* be simple to handle extra arguments
*/
OF_getprop(chosen, "bootargs", bootargs, sizeof(bootargs));
bargc = 0;
parse(&bargc, &bargv, bootargs);
if (bargc == 1)
env_setenv("currdev", EV_VOLATILE, bargv[0], ofw_setcurrdev,
env_nounset);
else
env_setenv("currdev", EV_VOLATILE, bootpath,
ofw_setcurrdev, env_nounset);
env_setenv("loaddev", EV_VOLATILE, bootpath, env_noset,
env_nounset);
setenv("LINES", "24", 1); /* optional */