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 <[EMAIL PROTECTED]>
---
commit 9436d0792f1352e9a034436c82b2229622fc3364
tree 0beeed478786b16cdb33be41ac803f781b8ea0cc
parent 187841bf9dff25e4ac1a7174daa55bb036c724b1
author Dave Jiang <[EMAIL PROTECTED](none)> Mon, 11 Feb 2008 12:55:45 -0700
committer Dave Jiang <[EMAIL PROTECTED](none)> Mon, 11 Feb 2008 12:55:45 -0700
arch/powerpc/sysdev/fsl_pci.c | 52 +++++++++++++++++++++++++++++++++++++++++
1 files changed, 52 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index bf13c21..c064c91 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -19,6 +19,8 @@
#include <linux/string.h>
#include <linux/init.h>
#include <linux/bootmem.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
#include <asm/io.h>
#include <asm/prom.h>
@@ -27,6 +29,56 @@
#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>
+#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;
+ struct of_device *of_dev;
+ struct platform_device *pdev;
+ struct resource res[2];
+ int id = 0;
+ int err;
+
+ 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]);
+
+ of_dev = of_find_device_by_node(np);
+ if (!of_dev)
+ return -ENODEV;
+
+ pdev = platform_device_alloc("mpc85xx_pci_err", id++);
+ if (!pdev)
+ return -ENOMEM;
+
+ err = platform_device_add_resources(pdev, res, 2);
+ if (err)
+ goto error;
+
+ pdev->dev.parent = &of_dev->dev;
+
+ err = platform_device_add(pdev);
+ if (err)
+ goto error;
+ }
+ return 0;
+
+error:
+ platform_device_put(pdev);
+ return err;
+}
+late_initcall(mpc85xx_pcierr_setup);
+#endif
+
/* atmu setup for fsl pci/pcie controller */
void __init setup_pci_atmu(struct pci_controller *hose, struct resource *rsrc)
{
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