Blackfin: detect anomaly 05000274

Detect and reject operating conditions for anomaly 05000274 since the
problem cannot be worked around in software.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 2 insertions, 7 deletions

diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 5a4a03670085..dc30e0aa54cd 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -801,10 +801,8 @@ void __init setup_arch(char **cmdline_p)
         cclk = get_cclk();
         sclk = get_sclk();
 
-#if !defined(CONFIG_BFIN_KERNEL_CLOCK)
-        if (ANOMALY_05000273 && cclk == sclk)
-                panic("ANOMALY 05000273, SCLK can not be same as CCLK");
-#endif
+        if ((ANOMALY_05000273 || ANOMALY_05000274) && (cclk >> 1) < sclk)
+                panic("ANOMALY 05000273 or 05000274: CCLK must be >= 2*SCLK");
 
 #ifdef BF561_FAMILY
         if (ANOMALY_05000266) {
@@ -903,9 +901,6 @@ void __init setup_arch(char **cmdline_p)
         printk(KERN_INFO "Processor Speed: %lu MHz core clock and %lu MHz System Clock\n",
                cclk / 1000000, sclk / 1000000);
 
-        if (ANOMALY_05000273 && (cclk >> 1) <= sclk)
-                printk("\n\n\nANOMALY_05000273: CCLK must be >= 2*SCLK !!!\n\n\n");
-
         setup_bootmem_allocator();
 
         paging_init();