From 97b3ecb575a92fa34c1765229dbc06f2b662f139 Mon Sep 17 00:00:00 2001
From: Kumar Gala <galak@kernel.crashing.org>
Date: Wed, 9 Apr 2008 04:20:57 -0500
Subject: [PATCH] 85xx: Fix detection of MP cpu spin up
We were looking at the wrong memory offset to determine of a secondary
cpu had been spun up or not. Also added a warning message if the
all the secondary cpus we expect don't spin up.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
cpu/mpc85xx/mp.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/cpu/mpc85xx/mp.c b/cpu/mpc85xx/mp.c
index 7b10fba0a6..e733f7b00a 100644
--- a/cpu/mpc85xx/mp.c
+++ b/cpu/mpc85xx/mp.c
@@ -154,7 +154,7 @@ static void pq3_mp_up(unsigned long bootpg)
while (timeout) {
int i;
for (i = 1; i < CONFIG_NR_CPUS; i++) {
- if (table[i * NUM_BOOT_ENTRY])
+ if (table[i * NUM_BOOT_ENTRY + BOOT_ENTRY_ADDR_LOWER])
cpu_up_mask |= (1 << i);
};
@@ -165,6 +165,10 @@ static void pq3_mp_up(unsigned long bootpg)
timeout--;
}
+ if (timeout == 0)
+ printf("CPU up timeout. CPU up mask is %x should be %x\n",
+ cpu_up_mask, up);
+
/* enable time base at the platform */
if (whoami)
devdisr |= MPC85xx_DEVDISR_TB1;