[PATCH v2 2/3] powerpc: create pci err platform device for EDAC on mpc85xx

[Dave Jiang <djiang@mvista.com>]

Creating a platform device for the PCI error registers in order for the
mpc85xx EDAC driver to pick up proper resources. This is to prevent the EDAC
driver from monopolizing the of_device and thus preventing future PCI code from
using the PCI of_device(s).

Signed-off-by: Dave Jiang <djiang@mvista.com>

---

 fsl_soc.c |   29 +++++++++++++++++++++++++++++
  1 file changed, 29 insertions(+)

diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index 727453d..fff7c91 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -1186,3 +1186,32 @@ err:
 arch_initcall(cpm_smc_uart_of_init);
 
 #endif /* CONFIG_8xx */
+
+#ifdef CONFIG_85xx
+
+/* setting up 85xx PCI error platform device for EDAC consumption */
+static int __init mpc85xx_pcierr_setup(void)
+{
+	struct device_node *np = NULL;
+	int id = 0;
+	struct resource res[2];
+
+	for_each_compatible_node(np, "pci", "fsl,mpc8540-pci") {
+		memset(res, 0, sizeof(struct resource) * 2);
+		if (of_address_to_resource(np, 0, &res[0])) {
+			printk(KERN_WARNING "Can't get pci register base!\n");
+			continue;
+		}
+
+		/* move start to where the error registers are */
+		res[0].start += 0xe00;
+
+		of_irq_to_resource(np, 0, &res[1]);
+		platform_device_register_simple("mpc85xx_pci_err", id, res, 2);
+		id++;
+	}
+	return 0;
+}
+arch_initcall(mpc85xx_pcierr_setup);
+
+#endif