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yaml --- r: 151140 b: refs/heads/master c: 54ebae7 h: refs/heads/master v: v3
git-mirror · Jun 13, 2009 · 527d8cc · 527d8cc
1 parent 2fcff28
commit 527d8cc
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Showing 2 changed files with 7 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 86f2008bf546af9a434f480710e8d33891616bf5
+refs/heads/master: 54ebae7166275a618f0228138e67ff7d10a3b9d0
diff --git a/trunk/arch/blackfin/kernel/early_printk.c b/trunk/arch/blackfin/kernel/early_printk.c
@@ -202,11 +202,15 @@ asmlinkage void __init init_early_exception_vectors(void)
 asmlinkage void __init early_trap_c(struct pt_regs *fp, void *retaddr)
 {
 	/* This can happen before the uart is initialized, so initialize
-	 * the UART now
+	 * the UART now (but only if we are running on the processor we think
+	 * we are compiled for - otherwise we write to MMRs that don't exist,
+	 * and cause other problems. Nothing comes out the UART, but it does
+	 * end up in the __buf_log.
 	 */
-	if (likely(early_console == NULL))
+	if (likely(early_console == NULL) && CPUID == bfin_cpuid())
 		setup_early_printk(DEFAULT_EARLY_PORT);
 
+	printk(KERN_EMERG "Early panic\n");
 	dump_bfin_mem(fp);
 	show_regs(fp);
 	dump_bfin_trace_buffer();