1 files changed, 56 insertions, 1 deletions

diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c
index 472d2b840f10..4f05f7542346 100644
--- a/arch/powerpc/sysdev/ppc4xx_pci.c
+++ b/arch/powerpc/sysdev/ppc4xx_pci.c
@@ -1296,6 +1296,52 @@ static struct ppc4xx_pciex_hwops ppc405ex_pcie_hwops __initdata =
 
 #endif /* CONFIG_40x */
 
+#ifdef CONFIG_476FPE
+static int __init ppc_476fpe_pciex_core_init(struct device_node *np)
+{
+        return 4;
+}
+
+static void __init ppc_476fpe_pciex_check_link(struct ppc4xx_pciex_port *port)
+{
+        u32 timeout_ms = 20;
+        u32 val = 0, mask = (PECFG_TLDLP_LNKUP|PECFG_TLDLP_PRESENT);
+        void __iomem *mbase = ioremap(port->cfg_space.start + 0x10000000,
+                                      0x1000);
+
+        printk(KERN_INFO "PCIE%d: Checking link...\n", port->index);
+
+        if (mbase == NULL) {
+                printk(KERN_WARNING "PCIE%d: failed to get cfg space\n",
+                                    port->index);
+                return;
+        }
+                
+        while (timeout_ms--) {
+                val = in_le32(mbase + PECFG_TLDLP);
+
+                if ((val & mask) == mask)
+                        break;
+                msleep(10);
+        }
+
+        if (val & PECFG_TLDLP_PRESENT) {
+                printk(KERN_INFO "PCIE%d: link is up !\n", port->index);
+                port->link = 1;
+        } else
+                printk(KERN_WARNING "PCIE%d: Link up failed\n", port->index);
+
+        iounmap(mbase);
+        return;
+}
+
+static struct ppc4xx_pciex_hwops ppc_476fpe_pcie_hwops __initdata =
+{
+        .core_init      = ppc_476fpe_pciex_core_init,
+        .check_link     = ppc_476fpe_pciex_check_link,
+};
+#endif /* CONFIG_476FPE */
+
 /* Check that the core has been initied and if not, do it */
 static int __init ppc4xx_pciex_check_core_init(struct device_node *np)
 {
@@ -1321,6 +1367,10 @@ static int __init ppc4xx_pciex_check_core_init(struct device_node *np)
         if (of_device_is_compatible(np, "ibm,plb-pciex-405ex"))
                 ppc4xx_pciex_hwops = &ppc405ex_pcie_hwops;
 #endif
+#ifdef CONFIG_476FPE
+        if (of_device_is_compatible(np, "ibm,plb-pciex-476fpe"))
+                ppc4xx_pciex_hwops = &ppc_476fpe_pcie_hwops;
+#endif
         if (ppc4xx_pciex_hwops == NULL) {
                 printk(KERN_WARNING "PCIE: unknown host type %s\n",
                        np->full_name);
@@ -1629,6 +1679,10 @@ static int __init ppc4xx_setup_one_pciex_POM(struct ppc4xx_pciex_port	*port,
                         dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL,
                                 sa | DCRO_PEGPL_460SX_OMR1MSKL_UOT
                                         | DCRO_PEGPL_OMRxMSKL_VAL);
+                else if (of_device_is_compatible(port->node, "ibm,plb-pciex-476fpe"))
+                        dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL,
+                                sa | DCRO_PEGPL_476FPE_OMR1MSKL_UOT
+                                        | DCRO_PEGPL_OMRxMSKL_VAL);
                 else
                         dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL,
                                 sa | DCRO_PEGPL_OMR1MSKL_UOT
@@ -1753,7 +1807,8 @@ static void __init ppc4xx_configure_pciex_PIMs(struct ppc4xx_pciex_port *port,
                 if (res->flags & IORESOURCE_PREFETCH)
                         sa |= PCI_BASE_ADDRESS_MEM_PREFETCH;
 
-                if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx"))
+                if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx") ||
+                    of_device_is_compatible(port->node, "ibm,plb-pciex-476fpe"))
                         sa |= PCI_BASE_ADDRESS_MEM_TYPE_64;
 
                 out_le32(mbase + PECFG_BAR0HMPA, RES_TO_U32_HIGH(sa));