From 817ba283acf2d7b5aa073b96fd989f336fcff72a Mon Sep 17 00:00:00 2001
From: Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de>
Date: Fri, 23 Oct 2015 05:50:33 +0200
Subject: merge more stuff from 3.2.72

---
 arch/arm/mach-kirkwood/pcie.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

(limited to 'arch/arm/mach-kirkwood/pcie.c')

diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c
index ca294ff..a881c54 100644
--- a/arch/arm/mach-kirkwood/pcie.c
+++ b/arch/arm/mach-kirkwood/pcie.c
@@ -12,6 +12,7 @@
 #include <linux/pci.h>
 #include <linux/slab.h>
 #include <linux/mbus.h>
+#include <video/vga.h>
 #include <asm/irq.h>
 #include <asm/mach/pci.h>
 #include <plat/pcie.h>
@@ -212,14 +213,19 @@ static int __init kirkwood_pcie_setup(int nr, struct pci_sys_data *sys)
 	return 1;
 }
 
+/*
+ * The root complex has a hardwired class of PCI_CLASS_MEMORY_OTHER, when it
+ * is operating as a root complex this needs to be switched to
+ * PCI_CLASS_BRIDGE_HOST or Linux will errantly try to process the BAR's on
+ * the device. Decoding setup is handled by the orion code.
+ */
 static void __devinit rc_pci_fixup(struct pci_dev *dev)
 {
-	/*
-	 * Prevent enumeration of root complex.
-	 */
 	if (dev->bus->parent == NULL && dev->devfn == 0) {
 		int i;
 
+		dev->class &= 0xff;
+		dev->class |= PCI_CLASS_BRIDGE_HOST << 8;
 		for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
 			dev->resource[i].start = 0;
 			dev->resource[i].end   = 0;
@@ -244,7 +250,8 @@ kirkwood_pcie_scan_bus(int nr, struct pci_sys_data *sys)
 	return bus;
 }
 
-static int __init kirkwood_pcie_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+static int __init kirkwood_pcie_map_irq(const struct pci_dev *dev, u8 slot,
+	u8 pin)
 {
 	struct pcie_port *pp = bus_to_port(dev->bus);
 
@@ -271,6 +278,8 @@ static void __init add_pcie_port(int index, unsigned long base)
 
 void __init kirkwood_pcie_init(unsigned int portmask)
 {
+	vga_base = KIRKWOOD_PCIE_MEM_PHYS_BASE;
+
 	if (portmask & KW_PCIE0)
 		add_pcie_port(0, PCIE_VIRT_BASE);
 
-- 
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