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12#include <common.h>
13
14#if (!defined(__I386__) && !defined(CONFIG_IXDP425))
15
16#include <asm/processor.h>
17#include <asm/io.h>
18#include <pci.h>
19
20#define cfg_read(val, addr, type, op) *val = op((type)(addr))
21#define cfg_write(val, addr, type, op) op((type *)(addr), (val))
22
23#ifdef CONFIG_IXP425
24extern unsigned char in_8 (volatile unsigned *addr);
25extern unsigned short in_le16 (volatile unsigned *addr);
26extern unsigned in_le32 (volatile unsigned *addr);
27extern void out_8 (volatile unsigned *addr, char val);
28extern void out_le16 (volatile unsigned *addr, unsigned short val);
29extern void out_le32 (volatile unsigned *addr, unsigned int val);
30#endif
31
32#if defined(CONFIG_MPC8260)
33#define INDIRECT_PCI_OP(rw, size, type, op, mask) \
34static int \
35indirect_##rw##_config_##size(struct pci_controller *hose, \
36 pci_dev_t dev, int offset, type val) \
37{ \
38 u32 b, d,f; \
39 b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \
40 b = b - hose->first_busno; \
41 dev = PCI_BDF(b, d, f); \
42 out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \
43 sync(); \
44 cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
45 return 0; \
46}
47#elif defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
48#define INDIRECT_PCI_OP(rw, size, type, op, mask) \
49static int \
50indirect_##rw##_config_##size(struct pci_controller *hose, \
51 pci_dev_t dev, int offset, type val) \
52{ \
53 u32 b, d,f; \
54 b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \
55 b = b - hose->first_busno; \
56 dev = PCI_BDF(b, d, f); \
57 *(hose->cfg_addr) = dev | (offset & 0xfc) | ((offset & 0xf00) << 16) | 0x80000000; \
58 sync(); \
59 cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
60 return 0; \
61}
62#elif defined(CONFIG_440GX) || defined(CONFIG_440GP) || defined(CONFIG_440SP) || \
63 defined(CONFIG_440SPE) || defined(CONFIG_460EX) || defined(CONFIG_460GT)
64#define INDIRECT_PCI_OP(rw, size, type, op, mask) \
65static int \
66indirect_##rw##_config_##size(struct pci_controller *hose, \
67 pci_dev_t dev, int offset, type val) \
68{ \
69 u32 b, d,f; \
70 b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \
71 b = b - hose->first_busno; \
72 dev = PCI_BDF(b, d, f); \
73 if (PCI_BUS(dev) > 0) \
74 out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000001); \
75 else \
76 out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \
77 cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
78 return 0; \
79}
80#else
81#define INDIRECT_PCI_OP(rw, size, type, op, mask) \
82static int \
83indirect_##rw##_config_##size(struct pci_controller *hose, \
84 pci_dev_t dev, int offset, type val) \
85{ \
86 u32 b, d,f; \
87 b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \
88 b = b - hose->first_busno; \
89 dev = PCI_BDF(b, d, f); \
90 out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \
91 cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
92 return 0; \
93}
94#endif
95
96#define INDIRECT_PCI_OP_ERRATA6(rw, size, type, op, mask) \
97static int \
98indirect_##rw##_config_##size(struct pci_controller *hose, \
99 pci_dev_t dev, int offset, type val) \
100{ \
101 unsigned int msr = mfmsr(); \
102 mtmsr(msr & ~(MSR_EE | MSR_CE)); \
103 out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \
104 cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
105 out_le32(hose->cfg_addr, 0x00000000); \
106 mtmsr(msr); \
107 return 0; \
108}
109
110INDIRECT_PCI_OP(read, byte, u8 *, in_8, 3)
111INDIRECT_PCI_OP(read, word, u16 *, in_le16, 2)
112INDIRECT_PCI_OP(read, dword, u32 *, in_le32, 0)
113#ifdef CONFIG_405GP
114INDIRECT_PCI_OP_ERRATA6(write, byte, u8, out_8, 3)
115INDIRECT_PCI_OP_ERRATA6(write, word, u16, out_le16, 2)
116INDIRECT_PCI_OP_ERRATA6(write, dword, u32, out_le32, 0)
117#else
118INDIRECT_PCI_OP(write, byte, u8, out_8, 3)
119INDIRECT_PCI_OP(write, word, u16, out_le16, 2)
120INDIRECT_PCI_OP(write, dword, u32, out_le32, 0)
121#endif
122
123void pci_setup_indirect(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data)
124{
125 pci_set_ops(hose,
126 indirect_read_config_byte,
127 indirect_read_config_word,
128 indirect_read_config_dword,
129 indirect_write_config_byte,
130 indirect_write_config_word,
131 indirect_write_config_dword);
132
133 hose->cfg_addr = (unsigned int *) cfg_addr;
134 hose->cfg_data = (unsigned char *) cfg_data;
135}
136
137#endif
138