From: Dirk Eibach eibach@gdsys.de
If CONFIG_RELEASE_CORE0_ONLY is set, all cores except core0 are kept in holdoff mode.
Signed-off-by: Dirk Eibach dirk.eibach@gdsys.cc --- Changes in v4: None Changes in v3: None Changes in v2: None
arch/powerpc/cpu/mpc85xx/mp.c | 8 ++++++-- 1 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/cpu/mpc85xx/mp.c b/arch/powerpc/cpu/mpc85xx/mp.c index 43d4836..73c1024 100644 --- a/arch/powerpc/cpu/mpc85xx/mp.c +++ b/arch/powerpc/cpu/mpc85xx/mp.c @@ -350,7 +350,11 @@ static void plat_mp_up(unsigned long bootpg, unsigned int pagesize) volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC8xxx_PIC_ADDR); u32 devdisr; int timeout = 10; + int numcores = 1;
+#ifndef CONFIG_RELEASE_CORE0_ONLY + numcores = cpu_numcores(); +#endif whoami = in_be32(&pic->whoami); out_be32(&ecm->bptr, 0x80000000 | (bootpg >> 12));
@@ -363,7 +367,7 @@ static void plat_mp_up(unsigned long bootpg, unsigned int pagesize) out_be32(&gur->devdisr, devdisr);
/* release the hounds */ - up = ((1 << cpu_numcores()) - 1); + up = ((1 << numcores) - 1); bpcr = in_be32(&ecm->eebpcr); bpcr |= (up << 24); out_be32(&ecm->eebpcr, bpcr); @@ -373,7 +377,7 @@ static void plat_mp_up(unsigned long bootpg, unsigned int pagesize) /* wait for everyone */ while (timeout) { int i; - for (i = 0; i < cpu_numcores(); i++) { + for (i = 0; i < numcores; i++) { if (table[i * NUM_BOOT_ENTRY + BOOT_ENTRY_ADDR_LOWER]) cpu_up_mask |= (1 << i); };