summaryrefslogtreecommitdiffstats
path: root/drivers/pci/dwc/pci-keystone.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/pci/dwc/pci-keystone.h')
-rw-r--r--drivers/pci/dwc/pci-keystone.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/pci/dwc/pci-keystone.h b/drivers/pci/dwc/pci-keystone.h
new file mode 100644
index 000000000000..74c5825882df
--- /dev/null
+++ b/drivers/pci/dwc/pci-keystone.h
@@ -0,0 +1,63 @@
+/*
+ * Keystone PCI Controller's common includes
+ *
+ * Copyright (C) 2013-2014 Texas Instruments., Ltd.
+ * http://www.ti.com
+ *
+ * Author: Murali Karicheri <m-karicheri2@ti.com>
+ *
+ *
+ * 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.
+ */
+
+#define MAX_LEGACY_IRQS 4
+#define MAX_MSI_HOST_IRQS 8
+#define MAX_LEGACY_HOST_IRQS 4
+
+struct keystone_pcie {
+ struct dw_pcie *pci;
+ struct clk *clk;
+ /* PCI Device ID */
+ u32 device_id;
+ int num_legacy_host_irqs;
+ int legacy_host_irqs[MAX_LEGACY_HOST_IRQS];
+ struct device_node *legacy_intc_np;
+
+ int num_msi_host_irqs;
+ int msi_host_irqs[MAX_MSI_HOST_IRQS];
+ struct device_node *msi_intc_np;
+ struct irq_domain *legacy_irq_domain;
+ struct device_node *np;
+
+ int error_irq;
+
+ /* Application register space */
+ void __iomem *va_app_base; /* DT 1st resource */
+ struct resource app;
+};
+
+/* Keystone DW specific MSI controller APIs/definitions */
+void ks_dw_pcie_handle_msi_irq(struct keystone_pcie *ks_pcie, int offset);
+phys_addr_t ks_dw_pcie_get_msi_addr(struct pcie_port *pp);
+
+/* Keystone specific PCI controller APIs */
+void ks_dw_pcie_enable_legacy_irqs(struct keystone_pcie *ks_pcie);
+void ks_dw_pcie_handle_legacy_irq(struct keystone_pcie *ks_pcie, int offset);
+void ks_dw_pcie_enable_error_irq(struct keystone_pcie *ks_pcie);
+irqreturn_t ks_dw_pcie_handle_error_irq(struct keystone_pcie *ks_pcie);
+int ks_dw_pcie_host_init(struct keystone_pcie *ks_pcie,
+ struct device_node *msi_intc_np);
+int ks_dw_pcie_wr_other_conf(struct pcie_port *pp, struct pci_bus *bus,
+ unsigned int devfn, int where, int size, u32 val);
+int ks_dw_pcie_rd_other_conf(struct pcie_port *pp, struct pci_bus *bus,
+ unsigned int devfn, int where, int size, u32 *val);
+void ks_dw_pcie_setup_rc_app_regs(struct keystone_pcie *ks_pcie);
+void ks_dw_pcie_initiate_link_train(struct keystone_pcie *ks_pcie);
+void ks_dw_pcie_msi_set_irq(struct pcie_port *pp, int irq);
+void ks_dw_pcie_msi_clear_irq(struct pcie_port *pp, int irq);
+void ks_dw_pcie_v3_65_scan_bus(struct pcie_port *pp);
+int ks_dw_pcie_msi_host_init(struct pcie_port *pp,
+ struct msi_controller *chip);
+int ks_dw_pcie_link_up(struct dw_pcie *pci);