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Discover and handle the number of E500 CPUs in run time.

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This commit is contained in:
Rafal Jaworowski 2009-06-05 09:46:00 +00:00
parent f121baaa45
commit 2b7b2d7952
1 changed files with 9 additions and 2 deletions
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11
sys/powerpc/booke/platform_bare.c
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@ -56,7 +56,7 @@ extern uint8_t __boot_page[]; /* Boot page body */
extern uint32_t kernload; /* Kernel physical load address */
#endif
static int cpu;
static int cpu, maxcpu;
static int bare_probe(platform_t);
static void bare_mem_regions(platform_t, struct mem_region **phys, int *physsz,
@ -91,6 +91,13 @@ PLATFORM_DEF(bare_platform);
static int
bare_probe(platform_t plat)
{
uint32_t ver;
ver = SVR_VER(mfspr(SPR_SVR));
if (ver == SVR_MPC8572E || ver == SVR_MPC8572)
maxcpu = 2;
else
maxcpu = 1;
return (BUS_PROBE_GENERIC);
}
@ -161,7 +168,7 @@ static int
bare_smp_next_cpu(platform_t plat, struct cpuref *cpuref)
{
if (cpu >= MAXCPU)
if (cpu >= maxcpu)
return (ENOENT);
cpuref->cr_cpuid = cpu++;