MIPS: Cavium: Add EDAC support.
Drivers for EDAC on Cavium. Supported subsystems are:
o CPU primary caches. These are parity protected only, so only error
reporting.
o Second level cache - ECC protected, provides SECDED.
o Memory: ECC / SECDEC if used with suitable DRAM modules. The driver will
will only initialize if ECC is enabled on a system so is safe to run on
non-ECC memory.
o PCI: Parity error reporting
Since it is very hard to test this sort of code the implementation is very
conservative and uses polling where possible for now.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Reviewed-by: Borislav Petkov <borislav.petkov@amd.com>
diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c
index 04dd8ff..60ed700 100644
--- a/arch/mips/cavium-octeon/setup.c
+++ b/arch/mips/cavium-octeon/setup.c
@@ -4,9 +4,11 @@
* for more details.
*
* Copyright (C) 2004-2007 Cavium Networks
- * Copyright (C) 2008 Wind River Systems
+ * Copyright (C) 2008, 2009 Wind River Systems
+ * written by Ralf Baechle <ralf@linux-mips.org>
*/
#include <linux/init.h>
+#include <linux/kernel.h>
#include <linux/console.h>
#include <linux/delay.h>
#include <linux/export.h>
@@ -821,3 +823,29 @@
}
unflatten_device_tree();
}
+
+static char *edac_device_names[] = {
+ "co_l2c_edac",
+ "co_lmc_edac",
+ "co_pc_edac",
+};
+
+static int __init edac_devinit(void)
+{
+ struct platform_device *dev;
+ int i, err = 0;
+ char *name;
+
+ for (i = 0; i < ARRAY_SIZE(edac_device_names); i++) {
+ name = edac_device_names[i];
+ dev = platform_device_register_simple(name, -1, NULL, 0);
+ if (IS_ERR(dev)) {
+ pr_err("Registation of %s failed!\n", name);
+ err = PTR_ERR(dev);
+ }
+ }
+
+ return err;
+}
+
+device_initcall(edac_devinit);