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authorHarry Ciao <qingtao.cao@windriver.com>2009-06-17 16:28:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-18 13:03:57 -0700
commit8f101a051ef054c33186abcd54b30a88afea47ef (patch)
treed1f977c58f86c0495ec578548fcdf45c2789e8c1 /arch/powerpc/platforms/maple
parent1dc9b70d7d48abd8a5c6f83021f38992f3b5a77f (diff)
edac: cpc925 MC platform device setup
Fix up the number of cells for the values of CPC925 Memory Controller, and setup related platform device during system booting up, against which CPC925 Memory Controller EDAC driver would be matched. Signed-off-by: Harry Ciao <qingtao.cao@windriver.com> Cc: Doug Thompson <norsk5@yahoo.com> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Kumar Gala <galak@gate.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc/platforms/maple')
-rw-r--r--arch/powerpc/platforms/maple/setup.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c
index bfd60e4acce..0636a3df697 100644
--- a/arch/powerpc/platforms/maple/setup.c
+++ b/arch/powerpc/platforms/maple/setup.c
@@ -335,3 +335,62 @@ define_machine(maple) {
.progress = maple_progress,
.power_save = power4_idle,
};
+
+#ifdef CONFIG_EDAC
+/*
+ * Register a platform device for CPC925 memory controller on
+ * Motorola ATCA-6101 blade.
+ */
+#define MAPLE_CPC925_MODEL "Motorola,ATCA-6101"
+static int __init maple_cpc925_edac_setup(void)
+{
+ struct platform_device *pdev;
+ struct device_node *np = NULL;
+ struct resource r;
+ const unsigned char *model;
+ int ret;
+
+ np = of_find_node_by_path("/");
+ if (!np) {
+ printk(KERN_ERR "%s: Unable to get root node\n", __func__);
+ return -ENODEV;
+ }
+
+ model = (const unsigned char *)of_get_property(np, "model", NULL);
+ if (!model) {
+ printk(KERN_ERR "%s: Unabel to get model info\n", __func__);
+ return -ENODEV;
+ }
+
+ ret = strcmp(model, MAPLE_CPC925_MODEL);
+ of_node_put(np);
+
+ if (ret != 0)
+ return 0;
+
+ np = of_find_node_by_type(NULL, "memory-controller");
+ if (!np) {
+ printk(KERN_ERR "%s: Unable to find memory-controller node\n",
+ __func__);
+ return -ENODEV;
+ }
+
+ ret = of_address_to_resource(np, 0, &r);
+ of_node_put(np);
+
+ if (ret < 0) {
+ printk(KERN_ERR "%s: Unable to get memory-controller reg\n",
+ __func__);
+ return -ENODEV;
+ }
+
+ pdev = platform_device_register_simple("cpc925_edac", 0, &r, 1);
+ if (IS_ERR(pdev))
+ return PTR_ERR(pdev);
+
+ printk(KERN_INFO "%s: CPC925 platform device created\n", __func__);
+
+ return 0;
+}
+machine_device_initcall(maple, maple_cpc925_edac_setup);
+#endif