Adding upstream version 6.1.76.upstream/6.1.76

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

1 files changed, 131 insertions, 0 deletions

diff --git a/drivers/pci/controller/pcie-iproc.h b/drivers/pci/controller/pcie-iproc.h
new file mode 100644
index 000000000..dcca31589
--- /dev/null
+++ b/drivers/pci/controller/pcie-iproc.h
@@ -0,0 +1,131 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2014-2015 Broadcom Corporation
+ */
+
+#ifndef _PCIE_IPROC_H
+#define _PCIE_IPROC_H
+
+/**
+ * enum iproc_pcie_type - iProc PCIe interface type
+ * @IPROC_PCIE_PAXB_BCMA: BCMA-based host controllers
+ * @IPROC_PCIE_PAXB:	  PAXB-based host controllers for
+ *			  NS, NSP, Cygnus, NS2, and Pegasus SOCs
+ * @IPROC_PCIE_PAXB_V2:   PAXB-based host controllers for Stingray SoCs
+ * @IPROC_PCIE_PAXC:	  PAXC-based host controllers
+ * @IPROC_PCIE_PAXC_V2:   PAXC-based host controllers (second generation)
+ *
+ * PAXB is the wrapper used in root complex that can be connected to an
+ * external endpoint device.
+ *
+ * PAXC is the wrapper used in root complex dedicated for internal emulated
+ * endpoint devices.
+ */
+enum iproc_pcie_type {
+	IPROC_PCIE_PAXB_BCMA = 0,
+	IPROC_PCIE_PAXB,
+	IPROC_PCIE_PAXB_V2,
+	IPROC_PCIE_PAXC,
+	IPROC_PCIE_PAXC_V2,
+};
+
+/**
+ * struct iproc_pcie_ob - iProc PCIe outbound mapping
+ * @axi_offset: offset from the AXI address to the internal address used by
+ * the iProc PCIe core
+ * @nr_windows: total number of supported outbound mapping windows
+ */
+struct iproc_pcie_ob {
+	resource_size_t axi_offset;
+	unsigned int nr_windows;
+};
+
+/**
+ * struct iproc_pcie_ib - iProc PCIe inbound mapping
+ * @nr_regions: total number of supported inbound mapping regions
+ */
+struct iproc_pcie_ib {
+	unsigned int nr_regions;
+};
+
+struct iproc_pcie_ob_map;
+struct iproc_pcie_ib_map;
+struct iproc_msi;
+
+/**
+ * struct iproc_pcie - iProc PCIe device
+ * @dev: pointer to device data structure
+ * @type: iProc PCIe interface type
+ * @reg_offsets: register offsets
+ * @base: PCIe host controller I/O register base
+ * @base_addr: PCIe host controller register base physical address
+ * @mem: host bridge memory window resource
+ * @phy: optional PHY device that controls the Serdes
+ * @map_irq: function callback to map interrupts
+ * @ep_is_internal: indicates an internal emulated endpoint device is connected
+ * @iproc_cfg_read: indicates the iProc config read function should be used
+ * @rej_unconfig_pf: indicates the root complex needs to detect and reject
+ * enumeration against unconfigured physical functions emulated in the ASIC
+ * @has_apb_err_disable: indicates the controller can be configured to prevent
+ * unsupported request from being forwarded as an APB bus error
+ * @fix_paxc_cap: indicates the controller has corrupted capability list in its
+ * config space registers and requires SW based fixup
+ *
+ * @need_ob_cfg: indicates SW needs to configure the outbound mapping window
+ * @ob: outbound mapping related parameters
+ * @ob_map: outbound mapping related parameters specific to the controller
+ *
+ * @need_ib_cfg: indicates SW needs to configure the inbound mapping window
+ * @ib: inbound mapping related parameters
+ * @ib_map: outbound mapping region related parameters
+ *
+ * @need_msi_steer: indicates additional configuration of the iProc PCIe
+ * controller is required to steer MSI writes to external interrupt controller
+ * @msi: MSI data
+ */
+struct iproc_pcie {
+	struct device *dev;
+	enum iproc_pcie_type type;
+	u16 *reg_offsets;
+	void __iomem *base;
+	phys_addr_t base_addr;
+	struct resource mem;
+	struct phy *phy;
+	int (*map_irq)(const struct pci_dev *, u8, u8);
+	bool ep_is_internal;
+	bool iproc_cfg_read;
+	bool rej_unconfig_pf;
+	bool has_apb_err_disable;
+	bool fix_paxc_cap;
+
+	bool need_ob_cfg;
+	struct iproc_pcie_ob ob;
+	const struct iproc_pcie_ob_map *ob_map;
+
+	bool need_ib_cfg;
+	struct iproc_pcie_ib ib;
+	const struct iproc_pcie_ib_map *ib_map;
+
+	bool need_msi_steer;
+	struct iproc_msi *msi;
+};
+
+int iproc_pcie_setup(struct iproc_pcie *pcie, struct list_head *res);
+int iproc_pcie_remove(struct iproc_pcie *pcie);
+int iproc_pcie_shutdown(struct iproc_pcie *pcie);
+
+#ifdef CONFIG_PCIE_IPROC_MSI
+int iproc_msi_init(struct iproc_pcie *pcie, struct device_node *node);
+void iproc_msi_exit(struct iproc_pcie *pcie);
+#else
+static inline int iproc_msi_init(struct iproc_pcie *pcie,
+				 struct device_node *node)
+{
+	return -ENODEV;
+}
+static inline void iproc_msi_exit(struct iproc_pcie *pcie)
+{
+}
+#endif
+
+#endif /* _PCIE_IPROC_H */