linux-kernel - [PATCH v13 03/12] ARM: Define PCI_IOBASE as the base of virtual PCI IO space

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Message-Id: <1412000971-9242-4-git-send-email-Liviu.Dudau@arm.com>
Date:	Mon, 29 Sep 2014 15:29:22 +0100
From:	Liviu Dudau <Liviu.Dudau@....com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>, Arnd Bergmann <arnd@...db.de>,
	Rob Herring <robh+dt@...nel.org>,
	Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <Will.Deacon@....com>,
	Russell King <linux@....linux.org.uk>,
	linux-pci <linux-pci@...r.kernel.org>,
	Linus Walleij <linus.walleij@...aro.org>
Cc:	Tanmay Inamdar <tinamdar@....com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Sinan Kaya <okaya@...eaurora.org>,
	Jingoo Han <jg1.han@...sung.com>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Suravee Suthikulanit <suravee.suthikulpanit@....com>,
	linux-arch <linux-arch@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Device Tree ML <devicetree@...r.kernel.org>,
	LAKML <linux-arm-kernel@...ts.infradead.org>,
	Yinghai Lu <yinghai@...nel.org>,
	Jiang Liu <jiang.liu@...ux.intel.com>
Subject: [PATCH v13 03/12] ARM: Define PCI_IOBASE as the base of virtual PCI IO space

This is needed for calls into OF code that parses PCI ranges.  It signals
support for memory mapped PCI I/O accesses that are described by device
trees.

Signed-off-by: Liviu Dudau <Liviu.Dudau@....com>
Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
Reviewed-by: Catalin Marinas <catalin.marinas@....com>
Acked-by: Arnd Bergmann <arnd@...db.de>
CC: Russell King <linux@....linux.org.uk>
CC: Rob Herring <robh+dt@...nel.org>
---
 arch/arm/include/asm/io.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 3d23418..1805674 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -178,6 +178,7 @@ static inline void __iomem *__typesafe_io(unsigned long addr)
 
 /* PCI fixed i/o mapping */
 #define PCI_IO_VIRT_BASE	0xfee00000
+#define PCI_IOBASE		((void __iomem *)PCI_IO_VIRT_BASE)
 
 #if defined(CONFIG_PCI)
 void pci_ioremap_set_mem_type(int mem_type);
-- 
2.1.1

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