xref: /openbmc/linux/arch/powerpc/sysdev/fsl_pci.h (revision b6dcefde)
1 /*
2  * MPC85xx/86xx PCI Express structure define
3  *
4  * Copyright 2007 Freescale Semiconductor, Inc
5  *
6  * This program is free software; you can redistribute  it and/or modify it
7  * under  the terms of  the GNU General  Public License as published by the
8  * Free Software Foundation;  either version 2 of the  License, or (at your
9  * option) any later version.
10  *
11  */
12 
13 #ifdef __KERNEL__
14 #ifndef __POWERPC_FSL_PCI_H
15 #define __POWERPC_FSL_PCI_H
16 
17 #define PCIE_LTSSM	0x0404		/* PCIE Link Training and Status */
18 #define PCIE_LTSSM_L0	0x16		/* L0 state */
19 #define PIWAR_EN		0x80000000	/* Enable */
20 #define PIWAR_PF		0x20000000	/* prefetch */
21 #define PIWAR_TGI_LOCAL		0x00f00000	/* target - local memory */
22 #define PIWAR_READ_SNOOP	0x00050000
23 #define PIWAR_WRITE_SNOOP	0x00005000
24 
25 /* PCI/PCI Express outbound window reg */
26 struct pci_outbound_window_regs {
27 	__be32	potar;	/* 0x.0 - Outbound translation address register */
28 	__be32	potear;	/* 0x.4 - Outbound translation extended address register */
29 	__be32	powbar;	/* 0x.8 - Outbound window base address register */
30 	u8	res1[4];
31 	__be32	powar;	/* 0x.10 - Outbound window attributes register */
32 	u8	res2[12];
33 };
34 
35 /* PCI/PCI Express inbound window reg */
36 struct pci_inbound_window_regs {
37 	__be32	pitar;	/* 0x.0 - Inbound translation address register */
38 	u8	res1[4];
39 	__be32	piwbar;	/* 0x.8 - Inbound window base address register */
40 	__be32	piwbear;	/* 0x.c - Inbound window base extended address register */
41 	__be32	piwar;	/* 0x.10 - Inbound window attributes register */
42 	u8	res2[12];
43 };
44 
45 /* PCI/PCI Express IO block registers for 85xx/86xx */
46 struct ccsr_pci {
47 	__be32	config_addr;		/* 0x.000 - PCI/PCIE Configuration Address Register */
48 	__be32	config_data;		/* 0x.004 - PCI/PCIE Configuration Data Register */
49 	__be32	int_ack;		/* 0x.008 - PCI Interrupt Acknowledge Register */
50 	__be32	pex_otb_cpl_tor;	/* 0x.00c - PCIE Outbound completion timeout register */
51 	__be32	pex_conf_tor;		/* 0x.010 - PCIE configuration timeout register */
52 	u8	res2[12];
53 	__be32	pex_pme_mes_dr;		/* 0x.020 - PCIE PME and message detect register */
54 	__be32	pex_pme_mes_disr;	/* 0x.024 - PCIE PME and message disable register */
55 	__be32	pex_pme_mes_ier;	/* 0x.028 - PCIE PME and message interrupt enable register */
56 	__be32	pex_pmcr;		/* 0x.02c - PCIE power management command register */
57 	u8	res3[3024];
58 
59 /* PCI/PCI Express outbound window 0-4
60  * Window 0 is the default window and is the only window enabled upon reset.
61  * The default outbound register set is used when a transaction misses
62  * in all of the other outbound windows.
63  */
64 	struct pci_outbound_window_regs pow[5];
65 
66 	u8	res14[256];
67 
68 /* PCI/PCI Express inbound window 3-1
69  * inbound window 1 supports only a 32-bit base address and does not
70  * define an inbound window base extended address register.
71  */
72 	struct pci_inbound_window_regs piw[3];
73 
74 	__be32	pex_err_dr;		/* 0x.e00 - PCI/PCIE error detect register */
75 	u8	res21[4];
76 	__be32	pex_err_en;		/* 0x.e08 - PCI/PCIE error interrupt enable register */
77 	u8	res22[4];
78 	__be32	pex_err_disr;		/* 0x.e10 - PCI/PCIE error disable register */
79 	u8	res23[12];
80 	__be32	pex_err_cap_stat;	/* 0x.e20 - PCI/PCIE error capture status register */
81 	u8	res24[4];
82 	__be32	pex_err_cap_r0;		/* 0x.e28 - PCIE error capture register 0 */
83 	__be32	pex_err_cap_r1;		/* 0x.e2c - PCIE error capture register 0 */
84 	__be32	pex_err_cap_r2;		/* 0x.e30 - PCIE error capture register 0 */
85 	__be32	pex_err_cap_r3;		/* 0x.e34 - PCIE error capture register 0 */
86 };
87 
88 extern int fsl_add_bridge(struct device_node *dev, int is_primary);
89 extern void fsl_pcibios_fixup_bus(struct pci_bus *bus);
90 extern int mpc83xx_add_bridge(struct device_node *dev);
91 
92 #endif /* __POWERPC_FSL_PCI_H */
93 #endif /* __KERNEL__ */
94