ARM: integrator: remap PCIv3 base dynamically
Remove the static mapping for the PCIv3 PCI bridge controller
and do this dynamically when probing instead.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index 604064b..9dd7125 100644
--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -260,15 +260,17 @@
* the mappings into PCI memory.
*/
+static void __iomem *pci_v3_base;
+
// V3 access routines
-#define v3_writeb(o,v) __raw_writeb(v, PCI_V3_VADDR + (unsigned int)(o))
-#define v3_readb(o) (__raw_readb(PCI_V3_VADDR + (unsigned int)(o)))
+#define v3_writeb(o,v) __raw_writeb(v, pci_v3_base + (unsigned int)(o))
+#define v3_readb(o) (__raw_readb(pci_v3_base + (unsigned int)(o)))
-#define v3_writew(o,v) __raw_writew(v, PCI_V3_VADDR + (unsigned int)(o))
-#define v3_readw(o) (__raw_readw(PCI_V3_VADDR + (unsigned int)(o)))
+#define v3_writew(o,v) __raw_writew(v, pci_v3_base + (unsigned int)(o))
+#define v3_readw(o) (__raw_readw(pci_v3_base + (unsigned int)(o)))
-#define v3_writel(o,v) __raw_writel(v, PCI_V3_VADDR + (unsigned int)(o))
-#define v3_readl(o) (__raw_readl(PCI_V3_VADDR + (unsigned int)(o)))
+#define v3_writel(o,v) __raw_writel(v, pci_v3_base + (unsigned int)(o))
+#define v3_readl(o) (__raw_readl(pci_v3_base + (unsigned int)(o)))
/*============================================================================
*
@@ -835,6 +837,12 @@
return -ENODEV;
}
+ pci_v3_base = devm_ioremap(&pdev->dev, PHYS_PCI_V3_BASE, SZ_64K);
+ if (!pci_v3_base) {
+ dev_err(&pdev->dev, "unable to remap PCIv3 base\n");
+ return -ENODEV;
+ }
+
ret = devm_request_irq(&pdev->dev, IRQ_AP_V3INT, v3_irq, 0, "V3", NULL);
if (ret) {
dev_err(&pdev->dev, "unable to grab PCI error interrupt: %d\n",