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Commit 320145fa authored by Yegor Yefremov's avatar Yegor Yefremov Committed by Russell King
Browse files

ARM: 5597/1: [PCI] reset all internal hardware prior PCI initialization 



Make software reset to avoid freeze if PCI bus was messed up

Signed-off-by: default avatarYegor Yefremov <yegorslists@googlemail.com>
Acked-by: default avatarAndrew Victor <linux@maxim.org.za>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 0a52ac8d

arch/arm/mach-ks8695/pci.c

+3 −0
Original line number Diff line number Diff line
@@ -245,6 +245,9 @@ static int ks8695_pci_fault(unsigned long addr, unsigned int fsr, struct pt_regs 


static void __init ks8695_pci_preinit(void)

{

	/* make software reset to avoid freeze if PCI bus was messed up */

	__raw_writel(0x80000000, KS8695_PCI_VA + KS8695_PBCS);



	/* stage 1 initialization, subid, subdevice = 0x0001 */

	__raw_writel(0x00010001, KS8695_PCI_VA + KS8695_CRCSID);