Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 91 insertions, 0 deletions

diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h
new file mode 100644
index 0000000000..54c30126ea
--- /dev/null
+++ b/arch/sh/include/asm/pci.h
@@ -0,0 +1,91 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_SH_PCI_H
+#define __ASM_SH_PCI_H
+
+/* Can be used to override the logic in pci_scan_bus for skipping
+   already-configured bus numbers - to be used for buggy BIOSes
+   or architectures with incomplete PCI setup by the loader */
+
+#define pcibios_assign_all_busses()	1
+
+/*
+ * A board can define one or more PCI channels that represent built-in (or
+ * external) PCI controllers.
+ */
+struct pci_channel {
+	struct pci_channel	*next;
+	struct pci_bus		*bus;
+
+	struct pci_ops		*pci_ops;
+
+	struct resource		*resources;
+	unsigned int		nr_resources;
+
+	unsigned long		io_offset;
+	unsigned long		mem_offset;
+
+	unsigned long		reg_base;
+	unsigned long		io_map_base;
+
+	unsigned int		index;
+	unsigned int		need_domain_info;
+
+	/* Optional error handling */
+	struct timer_list	err_timer, serr_timer;
+	unsigned int		err_irq, serr_irq;
+};
+
+/* arch/sh/drivers/pci/pci.c */
+extern raw_spinlock_t pci_config_lock;
+
+extern int register_pci_controller(struct pci_channel *hose);
+extern void pcibios_report_status(unsigned int status_mask, int warn);
+
+/* arch/sh/drivers/pci/common.c */
+extern int early_read_config_byte(struct pci_channel *hose, int top_bus,
+				  int bus, int devfn, int offset, u8 *value);
+extern int early_read_config_word(struct pci_channel *hose, int top_bus,
+				  int bus, int devfn, int offset, u16 *value);
+extern int early_read_config_dword(struct pci_channel *hose, int top_bus,
+				   int bus, int devfn, int offset, u32 *value);
+extern int early_write_config_byte(struct pci_channel *hose, int top_bus,
+				   int bus, int devfn, int offset, u8 value);
+extern int early_write_config_word(struct pci_channel *hose, int top_bus,
+				   int bus, int devfn, int offset, u16 value);
+extern int early_write_config_dword(struct pci_channel *hose, int top_bus,
+				    int bus, int devfn, int offset, u32 value);
+extern void pcibios_enable_timers(struct pci_channel *hose);
+extern unsigned int pcibios_handle_status_errors(unsigned long addr,
+				 unsigned int status, struct pci_channel *hose);
+extern int pci_is_66mhz_capable(struct pci_channel *hose,
+				int top_bus, int current_bus);
+
+extern unsigned long PCIBIOS_MIN_IO, PCIBIOS_MIN_MEM;
+
+#define HAVE_PCI_MMAP
+#define ARCH_GENERIC_PCI_MMAP_RESOURCE
+
+/* Dynamic DMA mapping stuff.
+ * SuperH has everything mapped statically like x86.
+ */
+
+#ifdef CONFIG_PCI
+/*
+ * None of the SH PCI controllers support MWI, it is always treated as a
+ * direct memory write.
+ */
+#define PCI_DISABLE_MWI
+#endif
+
+/* Board-specific fixup routines. */
+int pcibios_map_platform_irq(const struct pci_dev *dev, u8 slot, u8 pin);
+
+#define pci_domain_nr(bus) ((struct pci_channel *)(bus)->sysdata)->index
+
+static inline int pci_proc_domain(struct pci_bus *bus)
+{
+	struct pci_channel *hose = bus->sysdata;
+	return hose->need_domain_info;
+}
+
+#endif /* __ASM_SH_PCI_H */