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/include/mach/platform.h b/arch/arm/mach-integrator/include/mach/platform.h
index be5859e..62fa119 100644 (file)
--- a/arch/arm/mach-integrator/include/mach/platform.h
+++ b/arch/arm/mach-integrator/include/mach/platform.h
@@ -325,7 +325,6 @@
 
 #define PCI_MEMORY_VADDR               IOMEM(0xe8000000)
 #define PCI_CONFIG_VADDR               IOMEM(0xec000000)
-#define PCI_V3_VADDR                   IOMEM(0xed000000)
 
 /* ------------------------------------------------------------------------
  *  Integrator Interrupt Controllers

diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index 0fff21c..8db3799 100644 (file)
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -80,7 +80,6 @@ void __iomem *ap_syscon_base;
  * Logical      Physical
  * e8000000    40000000        PCI memory              PHYS_PCI_MEM_BASE       (max 512M)
  * ec000000    61000000        PCI config space        PHYS_PCI_CONFIG_BASE    (max 16M)
- * ed000000    62000000        PCI V3 regs             PHYS_PCI_V3_BASE        (max 64k)
  * fee00000    60000000        PCI IO                  PHYS_PCI_IO_BASE        (max 16M)
  * ef000000                    Cache flush
  * f1000000    10000000        Core module registers
@@ -140,11 +139,6 @@ static struct map_desc ap_io_desc[] __initdata __maybe_unused = {
                .pfn            = __phys_to_pfn(PHYS_PCI_CONFIG_BASE),
                .length         = SZ_16M,
                .type           = MT_DEVICE
-       }, {
-               .virtual        = (unsigned long)PCI_V3_VADDR,
-               .pfn            = __phys_to_pfn(PHYS_PCI_V3_BASE),
-               .length         = SZ_64K,
-               .type           = MT_DEVICE
        }
 };
 

diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index 604064b..9dd7125 100644 (file)
--- 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 @@ static int __init pci_v3_probe(struct platform_device *pdev)
                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",