Startsida Utforska Hjälp
Logga in
GfA
/
linux_kernel
5
0
Fork 0
Filer Ärenden 0 Pull-förfrågningar 0 Wiki
Träd: e901b98738
Grenar Taggar
linux_kernel
/
drivers
/
pci
/
dwc
/
pci-keystone.h

pci-keystone.h 2.2 KB
Historik Rå

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061 
  1. /*
    2. 

  2.  * Keystone PCI Controller's common includes
    3. 

  3.  *
    4. 

  4.  * Copyright (C) 2013-2014 Texas Instruments., Ltd.
    5. 

  5.  *		http://www.ti.com
    6. 

  6.  *
    7. 

  7.  * Author: Murali Karicheri <m-karicheri2@ti.com>
    8. 

  8.  *
    9. 

  9.  *
    10. 

  10.  * This program is free software; you can redistribute it and/or modify
    11. 

  11.  * it under the terms of the GNU General Public License version 2 as
    12. 

  12.  * published by the Free Software Foundation.
    13. 

  13.  */
    14. 

  14. 

  15. #define MAX_MSI_HOST_IRQS		8
    16. 

  16. 

  17. struct keystone_pcie {
    18. 

  18. 	struct dw_pcie		*pci;
    19. 

  19. 	struct	clk		*clk;
    20. 

  20. 	/* PCI Device ID */
    21. 

  21. 	u32			device_id;
    22. 

  22. 	int			num_legacy_host_irqs;
    23. 

  23. 	int			legacy_host_irqs[PCI_NUM_INTX];
    24. 

  24. 	struct			device_node *legacy_intc_np;
    25. 

  25. 

  26. 	int			num_msi_host_irqs;
    27. 

  27. 	int			msi_host_irqs[MAX_MSI_HOST_IRQS];
    28. 

  28. 	struct			device_node *msi_intc_np;
    29. 

  29. 	struct irq_domain	*legacy_irq_domain;
    30. 

  30. 	struct device_node	*np;
    31. 

  31. 

  32. 	int error_irq;
    33. 

  33. 

  34. 	/* Application register space */
    35. 

  35. 	void __iomem		*va_app_base;	/* DT 1st resource */
    36. 

  36. 	struct resource		app;
    37. 

  37. };
    38. 

  38. 

  39. /* Keystone DW specific MSI controller APIs/definitions */
    40. 

  40. void ks_dw_pcie_handle_msi_irq(struct keystone_pcie *ks_pcie, int offset);
    41. 

  41. phys_addr_t ks_dw_pcie_get_msi_addr(struct pcie_port *pp);
    42. 

  42. 

  43. /* Keystone specific PCI controller APIs */
    44. 

  44. void ks_dw_pcie_enable_legacy_irqs(struct keystone_pcie *ks_pcie);
    45. 

  45. void ks_dw_pcie_handle_legacy_irq(struct keystone_pcie *ks_pcie, int offset);
    46. 

  46. void ks_dw_pcie_enable_error_irq(struct keystone_pcie *ks_pcie);
    47. 

  47. irqreturn_t ks_dw_pcie_handle_error_irq(struct keystone_pcie *ks_pcie);
    48. 

  48. int  ks_dw_pcie_host_init(struct keystone_pcie *ks_pcie,
    49. 

  49. 			struct device_node *msi_intc_np);
    50. 

  50. int ks_dw_pcie_wr_other_conf(struct pcie_port *pp, struct pci_bus *bus,
    51. 

  51. 		unsigned int devfn, int where, int size, u32 val);
    52. 

  52. int ks_dw_pcie_rd_other_conf(struct pcie_port *pp, struct pci_bus *bus,
    53. 

  53. 		unsigned int devfn, int where, int size, u32 *val);
    54. 

  54. void ks_dw_pcie_setup_rc_app_regs(struct keystone_pcie *ks_pcie);
    55. 

  55. void ks_dw_pcie_initiate_link_train(struct keystone_pcie *ks_pcie);
    56. 

  56. void ks_dw_pcie_msi_set_irq(struct pcie_port *pp, int irq);
    57. 

  57. void ks_dw_pcie_msi_clear_irq(struct pcie_port *pp, int irq);
    58. 

  58. void ks_dw_pcie_v3_65_scan_bus(struct pcie_port *pp);
    59. 

  59. int ks_dw_pcie_msi_host_init(struct pcie_port *pp,
    60. 

  60. 		struct msi_controller *chip);
    61. 

  61. int ks_dw_pcie_link_up(struct dw_pcie *pci);
    62.