From: Lennert Buytenhek <buytenh@wantstofly.org>
Date: Thu, 15 May 2008 09:31:14 +0000 (+0100)
Subject: [ARM] 5037/1: Orion: fix DNS323/Kurobox Pro PCI initialisation
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bbdf1c1e58f215940243bedc235e48ed7e8d6f2d;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

[ARM] 5037/1: Orion: fix DNS323/Kurobox Pro PCI initialisation

Whereas most Orion 5x machine support code would initialise the PCI
subsystem with nr_controllers in their struct hw_pci set to 2, the
DNS323 and Kurobox Pro machine support code had nr_controllers set
to 1.

This was presumably done because on those two machines, the PCI(-X)
controller (nr == 1) isn't used, requiring initialisation of only
the PCIe controller (nr == 0.)  However, not initialising the PCI(-X)
controller on boards that don't use it leads to a situation where
both the PCIe and the PCI(-X) controller think that their root bus is
zero, and it messes up IRQ assignment.

This patch changes the DNS323 and Kurobox Pro support code to always
use nr_controllers == 2.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c
index f9430f5ca9a8..27ce967ab9e5 100644
--- a/arch/arm/mach-orion5x/dns323-setup.c
+++ b/arch/arm/mach-orion5x/dns323-setup.c
@@ -58,7 +58,7 @@ static int __init dns323_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
 }
 
 static struct hw_pci dns323_pci __initdata = {
-	.nr_controllers = 1,
+	.nr_controllers = 2,
 	.swizzle	= pci_std_swizzle,
 	.setup		= orion5x_pci_sys_setup,
 	.scan		= orion5x_pci_sys_scan_bus,
diff --git a/arch/arm/mach-orion5x/kurobox_pro-setup.c b/arch/arm/mach-orion5x/kurobox_pro-setup.c
index 88410862feef..f5074b877b7f 100644
--- a/arch/arm/mach-orion5x/kurobox_pro-setup.c
+++ b/arch/arm/mach-orion5x/kurobox_pro-setup.c
@@ -138,7 +138,7 @@ static int __init kurobox_pro_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
 }
 
 static struct hw_pci kurobox_pro_pci __initdata = {
-	.nr_controllers	= 1,
+	.nr_controllers	= 2,
 	.swizzle	= pci_std_swizzle,
 	.setup		= orion5x_pci_sys_setup,
 	.scan		= orion5x_pci_sys_scan_bus,