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-rw-r--r--arch/arm/include/asm/mach/pci.h86
1 files changed, 86 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h
new file mode 100644
index 000000000..ea9bd0889
--- /dev/null
+++ b/arch/arm/include/asm/mach/pci.h
@@ -0,0 +1,86 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * arch/arm/include/asm/mach/pci.h
+ *
+ * Copyright (C) 2000 Russell King
+ */
+
+#ifndef __ASM_MACH_PCI_H
+#define __ASM_MACH_PCI_H
+
+#include <linux/ioport.h>
+
+struct pci_sys_data;
+struct pci_ops;
+struct pci_bus;
+struct pci_host_bridge;
+struct device;
+
+struct hw_pci {
+ struct pci_ops *ops;
+ int nr_controllers;
+ void **private_data;
+ int (*setup)(int nr, struct pci_sys_data *);
+ int (*scan)(int nr, struct pci_host_bridge *);
+ void (*preinit)(void);
+ void (*postinit)(void);
+ u8 (*swizzle)(struct pci_dev *dev, u8 *pin);
+ int (*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
+};
+
+/*
+ * Per-controller structure
+ */
+struct pci_sys_data {
+ struct list_head node;
+ int busnr; /* primary bus number */
+ u64 mem_offset; /* bus->cpu memory mapping offset */
+ unsigned long io_offset; /* bus->cpu IO mapping offset */
+ struct pci_bus *bus; /* PCI bus */
+ struct list_head resources; /* root bus resources (apertures) */
+ struct resource io_res;
+ char io_res_name[12];
+ /* Bridge swizzling */
+ u8 (*swizzle)(struct pci_dev *, u8 *);
+ /* IRQ mapping */
+ int (*map_irq)(const struct pci_dev *, u8, u8);
+ void *private_data; /* platform controller private data */
+};
+
+/*
+ * Call this with your hw_pci struct to initialise the PCI system.
+ */
+void pci_common_init_dev(struct device *, struct hw_pci *);
+
+/*
+ * Compatibility wrapper for older platforms that do not care about
+ * passing the parent device.
+ */
+static inline void pci_common_init(struct hw_pci *hw)
+{
+ pci_common_init_dev(NULL, hw);
+}
+
+/*
+ * Setup early fixed I/O mapping.
+ */
+#if defined(CONFIG_PCI)
+extern void pci_map_io_early(unsigned long pfn);
+#else
+static inline void pci_map_io_early(unsigned long pfn) {}
+#endif
+
+/*
+ * PCI controllers
+ */
+extern struct pci_ops iop3xx_ops;
+extern int iop3xx_pci_setup(int nr, struct pci_sys_data *);
+extern void iop3xx_pci_preinit(void);
+extern void iop3xx_pci_preinit_cond(void);
+
+extern struct pci_ops dc21285_ops;
+extern int dc21285_setup(int nr, struct pci_sys_data *);
+extern void dc21285_preinit(void);
+extern void dc21285_postinit(void);
+
+#endif /* __ASM_MACH_PCI_H */