--- zzzz-none-000/linux-3.10.107/arch/powerpc/sysdev/ppc4xx_pci.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/powerpc/sysdev/ppc4xx_pci.c	2021-02-04 17:41:59.000000000 +0000
@@ -22,7 +22,6 @@
 #include <linux/pci.h>
 #include <linux/init.h>
 #include <linux/of.h>
-#include <linux/bootmem.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
 
@@ -176,8 +175,12 @@
 		return -ENXIO;
 	}
 
-	/* Check that we are fully contained within 32 bits space */
-	if (res->end > 0xffffffff) {
+	/* Check that we are fully contained within 32 bits space if we are not
+	 * running on a 460sx or 476fpe which have 64 bit bus addresses.
+	 */
+	if (res->end > 0xffffffff &&
+	    !(of_device_is_compatible(hose->dn, "ibm,plb-pciex-460sx")
+	      || of_device_is_compatible(hose->dn, "ibm,plb-pciex-476fpe"))) {
 		printk(KERN_ERR "%s: dma-ranges outside of 32 bits space\n",
 		       hose->dn->full_name);
 		return -ENXIO;
@@ -1058,7 +1061,7 @@
 	return 1;
 }
 
-static int apm821xx_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
+static int __init apm821xx_pciex_init_port_hw(struct ppc4xx_pciex_port *port)
 {
 	u32 val;
 
@@ -1440,7 +1443,8 @@
 		ppc4xx_pciex_hwops = &ppc405ex_pcie_hwops;
 #endif
 #ifdef CONFIG_476FPE
-	if (of_device_is_compatible(np, "ibm,plb-pciex-476fpe"))
+	if (of_device_is_compatible(np, "ibm,plb-pciex-476fpe")
+		|| of_device_is_compatible(np, "ibm,plb-pciex-476gtr"))
 		ppc4xx_pciex_hwops = &ppc_476fpe_pcie_hwops;
 #endif
 	if (ppc4xx_pciex_hwops == NULL) {
@@ -1751,7 +1755,10 @@
 			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"))
+		else if (of_device_is_compatible(
+				port->node, "ibm,plb-pciex-476fpe") ||
+			of_device_is_compatible(
+				port->node, "ibm,plb-pciex-476gtr"))
 			dcr_write(port->dcrs, DCRO_PEGPL_OMR1MSKL,
 				sa | DCRO_PEGPL_476FPE_OMR1MSKL_UOT
 					| DCRO_PEGPL_OMRxMSKL_VAL);
@@ -1881,7 +1888,10 @@
 			sa |= PCI_BASE_ADDRESS_MEM_PREFETCH;
 
 		if (of_device_is_compatible(port->node, "ibm,plb-pciex-460sx") ||
-		    of_device_is_compatible(port->node, "ibm,plb-pciex-476fpe"))
+		    of_device_is_compatible(
+			    port->node, "ibm,plb-pciex-476fpe") ||
+		    of_device_is_compatible(
+			    port->node, "ibm,plb-pciex-476gtr"))
 			sa |= PCI_BASE_ADDRESS_MEM_TYPE_64;
 
 		out_le32(mbase + PECFG_BAR0HMPA, RES_TO_U32_HIGH(sa));