powerpc/5121: Add PCI support.

Uses mpc83xx_add_bridge in fsl_pci.c

Adds second register tuple to pci node register property
as done for 83xx device trees in a previous patch.
Signed-off-by: John Rigby <jrigby@freescale.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/boot/dts/mpc5121ads.dts

@@ -403,7 +403,8 @@ pci: pci@80008500 {
 		#interrupt-cells = <1>;
 		#size-cells = <2>;
 		#address-cells = <3>;
-		reg = <0x80008500 0x100>;
+		reg = <0x80008500 0x100		/* internal registers */
+		       0x80008300 0x8>;		/* config space access registers */
 		compatible = "fsl,mpc5121-pci";
 		device_type = "pci";
 	};

arch/powerpc/platforms/512x/Kconfig

@@ -3,6 +3,8 @@ config PPC_MPC512x
 	select FSL_SOC
 	select IPIC
 	select PPC_CLOCK
+	select PPC_PCI_CHOICE
+	select FSL_PCI if PCI
 
 config PPC_MPC5121
 	bool

arch/powerpc/platforms/512x/mpc5121_ads.c

@@ -22,16 +22,26 @@
 #include <asm/prom.h>
 #include <asm/time.h>
 
+#include <sysdev/fsl_pci.h>
+
 #include "mpc512x.h"
 #include "mpc5121_ads.h"
 
 static void __init mpc5121_ads_setup_arch(void)
 {
+#ifdef CONFIG_PCI
+	struct device_node *np;
+#endif
 	printk(KERN_INFO "MPC5121 ADS board from Freescale Semiconductor\n");
 	/*
 	 * cpld regs are needed early
 	 */
 	mpc5121_ads_cpld_map();
+
+#ifdef CONFIG_PCI
+	for_each_compatible_node(np, "pci", "fsl,mpc5121-pci")
+		mpc83xx_add_bridge(np);
+#endif
 }
 
 static void __init mpc5121_ads_init_IRQ(void)

arch/powerpc/sysdev/fsl_pci.c

@@ -251,7 +251,7 @@ DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_MPC8641D, quirk_fsl_pcie_header);
 DECLARE_PCI_FIXUP_HEADER(0x1957, PCI_DEVICE_ID_MPC8610, quirk_fsl_pcie_header);
 #endif /* CONFIG_PPC_85xx || CONFIG_PPC_86xx */
 
-#if defined(CONFIG_PPC_83xx)
+#if defined(CONFIG_PPC_83xx) || defined(CONFIG_PPC_MPC512x)
 int __init mpc83xx_add_bridge(struct device_node *dev)
 {
 	int len;
@@ -310,7 +310,7 @@ int __init mpc83xx_add_bridge(struct device_node *dev)
 
 	setup_indirect_pci(hose, rsrc_cfg.start, rsrc_cfg.start + 4, 0);
 
-	printk(KERN_INFO "Found MPC83xx PCI host bridge at 0x%016llx. "
+	printk(KERN_INFO "Found FSL PCI host bridge at 0x%016llx. "
 	       "Firmware bus number: %d->%d\n",
 	       (unsigned long long)rsrc_reg.start, hose->first_busno,
 	       hose->last_busno);