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authorTejun Heo <tj@kernel.org>2011-11-28 18:46:22 +0100
committerTejun Heo <tj@kernel.org>2011-11-28 18:46:22 +0100
commitd4bbf7e7759afc172e2bfbc5c416324590049cdd (patch)
tree7eab5ee5481cd3dcf1162329fec827177640018a /arch/arm/mach-ixp4xx/miccpt-pci.c
parentmemblock: Cast phys_addr_t to unsigned long long for printf use (diff)
parentMerge branch 'fbdev-for-linus' of git://github.com/schandinat/linux-2.6 (diff)
downloadlinux-d4bbf7e7759afc172e2bfbc5c416324590049cdd.tar.xz
linux-d4bbf7e7759afc172e2bfbc5c416324590049cdd.zip
Merge branch 'master' into x86/memblock
Conflicts & resolutions: * arch/x86/xen/setup.c dc91c728fd "xen: allow extra memory to be in multiple regions" 24aa07882b "memblock, x86: Replace memblock_x86_reserve/free..." conflicted on xen_add_extra_mem() updates. The resolution is trivial as the latter just want to replace memblock_x86_reserve_range() with memblock_reserve(). * drivers/pci/intel-iommu.c 166e9278a3f "x86/ia64: intel-iommu: move to drivers/iommu/" 5dfe8660a3d "bootmem: Replace work_with_active_regions() with..." conflicted as the former moved the file under drivers/iommu/. Resolved by applying the chnages from the latter on the moved file. * mm/Kconfig 6661672053a "memblock: add NO_BOOTMEM config symbol" c378ddd53f9 "memblock, x86: Make ARCH_DISCARD_MEMBLOCK a config option" conflicted trivially. Both added config options. Just letting both add their own options resolves the conflict. * mm/memblock.c d1f0ece6cdc "mm/memblock.c: small function definition fixes" ed7b56a799c "memblock: Remove memblock_memory_can_coalesce()" confliected. The former updates function removed by the latter. Resolution is trivial. Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/arm/mach-ixp4xx/miccpt-pci.c')
-rw-r--r--arch/arm/mach-ixp4xx/miccpt-pci.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp4xx/miccpt-pci.c b/arch/arm/mach-ixp4xx/miccpt-pci.c
new file mode 100644
index 000000000000..ca0bae7fca90
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/miccpt-pci.c
@@ -0,0 +1,78 @@
+/*
+ * arch/arm/mach-ixp4xx/miccpt-pci.c
+ *
+ * MICCPT board-level PCI initialization
+ *
+ * Copyright (C) 2002 Intel Corporation.
+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
+ * Copyright (C) 2006 OMICRON electronics GmbH
+ *
+ * Author: Michael Jochum <michael.jochum@omicron.at>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <asm/mach/pci.h>
+#include <asm/irq.h>
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+
+#define MAX_DEV 4
+#define IRQ_LINES 4
+
+/* PCI controller GPIO to IRQ pin mappings */
+#define INTA 1
+#define INTB 2
+#define INTC 3
+#define INTD 4
+
+
+void __init miccpt_pci_preinit(void)
+{
+ irq_set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
+ irq_set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
+ irq_set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW);
+ irq_set_irq_type(IXP4XX_GPIO_IRQ(INTD), IRQ_TYPE_LEVEL_LOW);
+ ixp4xx_pci_preinit();
+}
+
+static int __init miccpt_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+ static int pci_irq_table[IRQ_LINES] = {
+ IXP4XX_GPIO_IRQ(INTA),
+ IXP4XX_GPIO_IRQ(INTB),
+ IXP4XX_GPIO_IRQ(INTC),
+ IXP4XX_GPIO_IRQ(INTD)
+ };
+
+ if (slot >= 1 && slot <= MAX_DEV && pin >= 1 && pin <= IRQ_LINES)
+ return pci_irq_table[(slot + pin - 2) % 4];
+
+ return -1;
+}
+
+struct hw_pci miccpt_pci __initdata = {
+ .nr_controllers = 1,
+ .preinit = miccpt_pci_preinit,
+ .swizzle = pci_std_swizzle,
+ .setup = ixp4xx_setup,
+ .scan = ixp4xx_scan_bus,
+ .map_irq = miccpt_map_irq,
+};
+
+int __init miccpt_pci_init(void)
+{
+ if (machine_is_miccpt())
+ pci_common_init(&miccpt_pci);
+ return 0;
+}
+
+subsys_initcall(miccpt_pci_init);