From: Lennert Buytenhek 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%2FLineageOS%2Fandroid_kernel_samsung_universal7580.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 Signed-off-by: Russell King --- diff --git a/arch/arm/mach-orion5x/dns323-setup.c b/arch/arm/mach-orion5x/dns323-setup.c index f9430f5ca9a..27ce967ab9e 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 88410862fee..f5074b877b7 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,