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1/*
2 * PCI Include file the Freescale MPC52xx embedded cpu chips
3 *
4 *
5 * Maintainer : Sylvain Munaut <tnt@246tNt.com>
6 *
7 * Inspired from code written by Dale Farnsworth <dfarnsworth@mvista.com>
8 * for the 2.4 kernel.
9 *
10 * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
11 * Copyright (C) 2003 MontaVista, Software, Inc.
12 *
13 * This file is licensed under the terms of the GNU General Public License
14 * version 2. This program is licensed "as is" without any warranty of any
15 * kind, whether express or implied.
16 */
17
18#ifndef __SYSLIB_MPC52xx_PCI_H__
19#define __SYSLIB_MPC52xx_PCI_H__
20
21/* ======================================================================== */
22/* PCI windows config */
23/* ======================================================================== */
24
25/*
26 * Master windows : MPC52xx -> PCI
27 *
28 * 0x80000000 -> 0x9FFFFFFF PCI Mem prefetchable IW0BTAR
29 * 0xA0000000 -> 0xAFFFFFFF PCI Mem IW1BTAR
30 * 0xB0000000 -> 0xB0FFFFFF PCI IO IW2BTAR
31 *
32 * Slave windows : PCI -> MPC52xx
33 *
34 * 0xF0000000 -> 0xF003FFFF MPC52xx MBAR TBATR0
35 * 0x00000000 -> 0x3FFFFFFF MPC52xx local memory TBATR1
36 */
37
38#define MPC52xx_PCI_MEM_OFFSET 0x00000000 /* Offset for MEM MMIO */
39
40#define MPC52xx_PCI_MEM_START 0x80000000
41#define MPC52xx_PCI_MEM_SIZE 0x20000000
42#define MPC52xx_PCI_MEM_STOP (MPC52xx_PCI_MEM_START+MPC52xx_PCI_MEM_SIZE-1)
43
44#define MPC52xx_PCI_MMIO_START 0xa0000000
45#define MPC52xx_PCI_MMIO_SIZE 0x10000000
46#define MPC52xx_PCI_MMIO_STOP (MPC52xx_PCI_MMIO_START+MPC52xx_PCI_MMIO_SIZE-1)
47
48#define MPC52xx_PCI_IO_BASE 0xb0000000
49
50#define MPC52xx_PCI_IO_START 0x00000000
51#define MPC52xx_PCI_IO_SIZE 0x01000000
52#define MPC52xx_PCI_IO_STOP (MPC52xx_PCI_IO_START+MPC52xx_PCI_IO_SIZE-1)
53
54
55#define MPC52xx_PCI_TARGET_IO MPC52xx_MBAR
56#define MPC52xx_PCI_TARGET_MEM 0x00000000
57
58
59/* ======================================================================== */
60/* Structures mapping & Defines for PCI Unit */
61/* ======================================================================== */
62
63#define MPC52xx_PCI_GSCR_BM 0x40000000
64#define MPC52xx_PCI_GSCR_PE 0x20000000
65#define MPC52xx_PCI_GSCR_SE 0x10000000
66#define MPC52xx_PCI_GSCR_XLB2PCI_MASK 0x07000000
67#define MPC52xx_PCI_GSCR_XLB2PCI_SHIFT 24
68#define MPC52xx_PCI_GSCR_IPG2PCI_MASK 0x00070000
69#define MPC52xx_PCI_GSCR_IPG2PCI_SHIFT 16
70#define MPC52xx_PCI_GSCR_BME 0x00004000
71#define MPC52xx_PCI_GSCR_PEE 0x00002000
72#define MPC52xx_PCI_GSCR_SEE 0x00001000
73#define MPC52xx_PCI_GSCR_PR 0x00000001
74
75
76#define MPC52xx_PCI_IWBTAR_TRANSLATION(proc_ad,pci_ad,size) \
77 ( ( (proc_ad) & 0xff000000 ) | \
78 ( (((size) - 1) >> 8) & 0x00ff0000 ) | \
79 ( ((pci_ad) >> 16) & 0x0000ff00 ) )
80
81#define MPC52xx_PCI_IWCR_PACK(win0,win1,win2) (((win0) << 24) | \
82 ((win1) << 16) | \
83 ((win2) << 8))
84
85#define MPC52xx_PCI_IWCR_DISABLE 0x0
86#define MPC52xx_PCI_IWCR_ENABLE 0x1
87#define MPC52xx_PCI_IWCR_READ 0x0
88#define MPC52xx_PCI_IWCR_READ_LINE 0x2
89#define MPC52xx_PCI_IWCR_READ_MULTI 0x4
90#define MPC52xx_PCI_IWCR_MEM 0x0
91#define MPC52xx_PCI_IWCR_IO 0x8
92
93#define MPC52xx_PCI_TCR_P 0x01000000
94#define MPC52xx_PCI_TCR_LD 0x00010000
95
96#define MPC52xx_PCI_TBATR_DISABLE 0x0
97#define MPC52xx_PCI_TBATR_ENABLE 0x1
98
99
100#ifndef __ASSEMBLY__
101
102struct mpc52xx_pci {
103 u32 idr; /* PCI + 0x00 */
104 u32 scr; /* PCI + 0x04 */
105 u32 ccrir; /* PCI + 0x08 */
106 u32 cr1; /* PCI + 0x0C */
107 u32 bar0; /* PCI + 0x10 */
108 u32 bar1; /* PCI + 0x14 */
109 u8 reserved1[16]; /* PCI + 0x18 */
110 u32 ccpr; /* PCI + 0x28 */
111 u32 sid; /* PCI + 0x2C */
112 u32 erbar; /* PCI + 0x30 */
113 u32 cpr; /* PCI + 0x34 */
114 u8 reserved2[4]; /* PCI + 0x38 */
115 u32 cr2; /* PCI + 0x3C */
116 u8 reserved3[32]; /* PCI + 0x40 */
117 u32 gscr; /* PCI + 0x60 */
118 u32 tbatr0; /* PCI + 0x64 */
119 u32 tbatr1; /* PCI + 0x68 */
120 u32 tcr; /* PCI + 0x6C */
121 u32 iw0btar; /* PCI + 0x70 */
122 u32 iw1btar; /* PCI + 0x74 */
123 u32 iw2btar; /* PCI + 0x78 */
124 u8 reserved4[4]; /* PCI + 0x7C */
125 u32 iwcr; /* PCI + 0x80 */
126 u32 icr; /* PCI + 0x84 */
127 u32 isr; /* PCI + 0x88 */
128 u32 arb; /* PCI + 0x8C */
129 u8 reserved5[104]; /* PCI + 0x90 */
130 u32 car; /* PCI + 0xF8 */
131 u8 reserved6[4]; /* PCI + 0xFC */
132};
133
134#endif /* __ASSEMBLY__ */
135
136
137#endif /* __SYSLIB_MPC52xx_PCI_H__ */