xref: /linux/include/linux/ssb/ssb_driver_pci.h (revision 498495dba268b20e8eadd7fe93c140c68b6cc9d2)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef LINUX_SSB_PCICORE_H_
3 #define LINUX_SSB_PCICORE_H_
4 
5 #include <linux/types.h>
6 
7 struct pci_dev;
8 
9 
10 #ifdef CONFIG_SSB_DRIVER_PCICORE
11 
12 /* PCI core registers. */
13 #define SSB_PCICORE_CTL			0x0000	/* PCI Control */
14 #define  SSB_PCICORE_CTL_RST_OE		0x00000001 /* PCI_RESET Output Enable */
15 #define  SSB_PCICORE_CTL_RST		0x00000002 /* PCI_RESET driven out to pin */
16 #define  SSB_PCICORE_CTL_CLK_OE		0x00000004 /* Clock gate Output Enable */
17 #define  SSB_PCICORE_CTL_CLK		0x00000008 /* Gate for clock driven out to pin */
18 #define SSB_PCICORE_ARBCTL		0x0010	/* PCI Arbiter Control */
19 #define  SSB_PCICORE_ARBCTL_INTERN	0x00000001 /* Use internal arbiter */
20 #define  SSB_PCICORE_ARBCTL_EXTERN	0x00000002 /* Use external arbiter */
21 #define  SSB_PCICORE_ARBCTL_PARKID	0x00000006 /* Mask, selects which agent is parked on an idle bus */
22 #define   SSB_PCICORE_ARBCTL_PARKID_LAST	0x00000000 /* Last requestor */
23 #define   SSB_PCICORE_ARBCTL_PARKID_4710	0x00000002 /* 4710 */
24 #define   SSB_PCICORE_ARBCTL_PARKID_EXT0	0x00000004 /* External requestor 0 */
25 #define   SSB_PCICORE_ARBCTL_PARKID_EXT1	0x00000006 /* External requestor 1 */
26 #define SSB_PCICORE_ISTAT		0x0020	/* Interrupt status */
27 #define  SSB_PCICORE_ISTAT_INTA		0x00000001 /* PCI INTA# */
28 #define  SSB_PCICORE_ISTAT_INTB		0x00000002 /* PCI INTB# */
29 #define  SSB_PCICORE_ISTAT_SERR		0x00000004 /* PCI SERR# (write to clear) */
30 #define  SSB_PCICORE_ISTAT_PERR		0x00000008 /* PCI PERR# (write to clear) */
31 #define  SSB_PCICORE_ISTAT_PME		0x00000010 /* PCI PME# */
32 #define SSB_PCICORE_IMASK		0x0024	/* Interrupt mask */
33 #define  SSB_PCICORE_IMASK_INTA		0x00000001 /* PCI INTA# */
34 #define  SSB_PCICORE_IMASK_INTB		0x00000002 /* PCI INTB# */
35 #define  SSB_PCICORE_IMASK_SERR		0x00000004 /* PCI SERR# */
36 #define  SSB_PCICORE_IMASK_PERR		0x00000008 /* PCI PERR# */
37 #define  SSB_PCICORE_IMASK_PME		0x00000010 /* PCI PME# */
38 #define SSB_PCICORE_MBOX		0x0028	/* Backplane to PCI Mailbox */
39 #define  SSB_PCICORE_MBOX_F0_0		0x00000100 /* PCI function 0, INT 0 */
40 #define  SSB_PCICORE_MBOX_F0_1		0x00000200 /* PCI function 0, INT 1 */
41 #define  SSB_PCICORE_MBOX_F1_0		0x00000400 /* PCI function 1, INT 0 */
42 #define  SSB_PCICORE_MBOX_F1_1		0x00000800 /* PCI function 1, INT 1 */
43 #define  SSB_PCICORE_MBOX_F2_0		0x00001000 /* PCI function 2, INT 0 */
44 #define  SSB_PCICORE_MBOX_F2_1		0x00002000 /* PCI function 2, INT 1 */
45 #define  SSB_PCICORE_MBOX_F3_0		0x00004000 /* PCI function 3, INT 0 */
46 #define  SSB_PCICORE_MBOX_F3_1		0x00008000 /* PCI function 3, INT 1 */
47 #define SSB_PCICORE_BCAST_ADDR		0x0050	/* Backplane Broadcast Address */
48 #define  SSB_PCICORE_BCAST_ADDR_MASK	0x000000FF
49 #define SSB_PCICORE_BCAST_DATA		0x0054	/* Backplane Broadcast Data */
50 #define SSB_PCICORE_GPIO_IN		0x0060	/* rev >= 2 only */
51 #define SSB_PCICORE_GPIO_OUT		0x0064	/* rev >= 2 only */
52 #define SSB_PCICORE_GPIO_ENABLE		0x0068	/* rev >= 2 only */
53 #define SSB_PCICORE_GPIO_CTL		0x006C	/* rev >= 2 only */
54 #define SSB_PCICORE_SBTOPCI0		0x0100	/* Backplane to PCI translation 0 (sbtopci0) */
55 #define  SSB_PCICORE_SBTOPCI0_MASK	0xFC000000
56 #define SSB_PCICORE_SBTOPCI1		0x0104	/* Backplane to PCI translation 1 (sbtopci1) */
57 #define  SSB_PCICORE_SBTOPCI1_MASK	0xFC000000
58 #define SSB_PCICORE_SBTOPCI2		0x0108	/* Backplane to PCI translation 2 (sbtopci2) */
59 #define  SSB_PCICORE_SBTOPCI2_MASK	0xC0000000
60 #define SSB_PCICORE_PCICFG0		0x0400	/* PCI config space 0 (rev >= 8) */
61 #define SSB_PCICORE_PCICFG1		0x0500	/* PCI config space 1 (rev >= 8) */
62 #define SSB_PCICORE_PCICFG2		0x0600	/* PCI config space 2 (rev >= 8) */
63 #define SSB_PCICORE_PCICFG3		0x0700	/* PCI config space 3 (rev >= 8) */
64 #define SSB_PCICORE_SPROM(wordoffset)	(0x0800 + ((wordoffset) * 2)) /* SPROM shadow area (72 bytes) */
65 
66 /* SBtoPCIx */
67 #define SSB_PCICORE_SBTOPCI_MEM		0x00000000
68 #define SSB_PCICORE_SBTOPCI_IO		0x00000001
69 #define SSB_PCICORE_SBTOPCI_CFG0	0x00000002
70 #define SSB_PCICORE_SBTOPCI_CFG1	0x00000003
71 #define SSB_PCICORE_SBTOPCI_PREF	0x00000004 /* Prefetch enable */
72 #define SSB_PCICORE_SBTOPCI_BURST	0x00000008 /* Burst enable */
73 #define SSB_PCICORE_SBTOPCI_MRM		0x00000020 /* Memory Read Multiple */
74 #define SSB_PCICORE_SBTOPCI_RC		0x00000030 /* Read Command mask (rev >= 11) */
75 #define  SSB_PCICORE_SBTOPCI_RC_READ	0x00000000 /* Memory read */
76 #define  SSB_PCICORE_SBTOPCI_RC_READL	0x00000010 /* Memory read line */
77 #define  SSB_PCICORE_SBTOPCI_RC_READM	0x00000020 /* Memory read multiple */
78 
79 
80 /* PCIcore specific boardflags */
81 #define SSB_PCICORE_BFL_NOPCI		0x00000400 /* Board leaves PCI floating */
82 
83 
84 struct ssb_pcicore {
85 	struct ssb_device *dev;
86 	u8 setup_done:1;
87 	u8 hostmode:1;
88 	u8 cardbusmode:1;
89 };
90 
91 extern void ssb_pcicore_init(struct ssb_pcicore *pc);
92 
93 /* Enable IRQ routing for a specific device */
94 extern int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc,
95 					  struct ssb_device *dev);
96 
97 int ssb_pcicore_plat_dev_init(struct pci_dev *d);
98 int ssb_pcicore_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
99 
100 
101 #else /* CONFIG_SSB_DRIVER_PCICORE */
102 
103 
104 struct ssb_pcicore {
105 };
106 
107 static inline
ssb_pcicore_init(struct ssb_pcicore * pc)108 void ssb_pcicore_init(struct ssb_pcicore *pc)
109 {
110 }
111 
112 static inline
ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore * pc,struct ssb_device * dev)113 int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc,
114 				   struct ssb_device *dev)
115 {
116 	return 0;
117 }
118 
119 static inline
ssb_pcicore_plat_dev_init(struct pci_dev * d)120 int ssb_pcicore_plat_dev_init(struct pci_dev *d)
121 {
122 	return -ENODEV;
123 }
124 static inline
ssb_pcicore_pcibios_map_irq(const struct pci_dev * dev,u8 slot,u8 pin)125 int ssb_pcicore_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
126 {
127 	return -ENODEV;
128 }
129 
130 #endif /* CONFIG_SSB_DRIVER_PCICORE */
131 #endif /* LINUX_SSB_PCICORE_H_ */
132