1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
*/
#include <init.h>
#include <asm/mmu.h>
#include <asm/io.h>
#include <common.h>
#include <mpc83xx.h>
#include <pci.h>
#include <i2c.h>
#include <asm/fsl_i2c.h>
#include <linux/delay.h>
static struct pci_region pci1_regions[] = {
{
bus_start: CONFIG_SYS_PCI1_MEM_BASE,
phys_start: CONFIG_SYS_PCI1_MEM_PHYS,
size: CONFIG_SYS_PCI1_MEM_SIZE,
flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
},
{
bus_start: CONFIG_SYS_PCI1_IO_BASE,
phys_start: CONFIG_SYS_PCI1_IO_PHYS,
size: CONFIG_SYS_PCI1_IO_SIZE,
flags: PCI_REGION_IO
},
{
bus_start: CONFIG_SYS_PCI1_MMIO_BASE,
phys_start: CONFIG_SYS_PCI1_MMIO_PHYS,
size: CONFIG_SYS_PCI1_MMIO_SIZE,
flags: PCI_REGION_MEM
},
};
#ifdef CONFIG_MPC83XX_PCI2
static struct pci_region pci2_regions[] = {
{
bus_start: CONFIG_SYS_PCI2_MEM_BASE,
phys_start: CONFIG_SYS_PCI2_MEM_PHYS,
size: CONFIG_SYS_PCI2_MEM_SIZE,
flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
},
{
bus_start: CONFIG_SYS_PCI2_IO_BASE,
phys_start: CONFIG_SYS_PCI2_IO_PHYS,
size: CONFIG_SYS_PCI2_IO_SIZE,
flags: PCI_REGION_IO
},
{
bus_start: CONFIG_SYS_PCI2_MMIO_BASE,
phys_start: CONFIG_SYS_PCI2_MMIO_PHYS,
size: CONFIG_SYS_PCI2_MMIO_SIZE,
flags: PCI_REGION_MEM
},
};
#endif
#ifndef CONFIG_PCISLAVE
void pib_init(void)
{
u8 val8, orig_i2c_bus;
/*
* Assign PIB PMC slot to desired PCI bus
*/
/* Switch temporarily to I2C bus #2 */
orig_i2c_bus = i2c_get_bus_num();
i2c_set_bus_num(1);
val8 = 0;
i2c_write(0x23, 0x6, 1, &val8, 1);
i2c_write(0x23, 0x7, 1, &val8, 1);
val8 = 0xff;
i2c_write(0x23, 0x2, 1, &val8, 1);
i2c_write(0x23, 0x3, 1, &val8, 1);
val8 = 0;
i2c_write(0x26, 0x6, 1, &val8, 1);
val8 = 0x34;
i2c_write(0x26, 0x7, 1, &val8, 1);
#if defined(CONFIG_PCI_64BIT)
val8 = 0xf4; /* PMC2:PCI1/64-bit */
#elif defined(CONFIG_PCI_ALL_PCI1)
val8 = 0xf3; /* PMC1:PCI1 PMC2:PCI1 PMC3:PCI1 */
#elif defined(CONFIG_PCI_ONE_PCI1)
val8 = 0xf9; /* PMC1:PCI1 PMC2:PCI2 PMC3:PCI2 */
#else
val8 = 0xf5; /* PMC1:PCI1 PMC2:PCI1 PMC3:PCI2 */
#endif
i2c_write(0x26, 0x2, 1, &val8, 1);
val8 = 0xff;
i2c_write(0x26, 0x3, 1, &val8, 1);
val8 = 0;
i2c_write(0x27, 0x6, 1, &val8, 1);
i2c_write(0x27, 0x7, 1, &val8, 1);
val8 = 0xff;
i2c_write(0x27, 0x2, 1, &val8, 1);
val8 = 0xef;
i2c_write(0x27, 0x3, 1, &val8, 1);
asm("eieio");
#if defined(CONFIG_PCI_64BIT)
printf("PCI1: 64-bit on PMC2\n");
#elif defined(CONFIG_PCI_ALL_PCI1)
printf("PCI1: 32-bit on PMC1, PMC2, PMC3\n");
#elif defined(CONFIG_PCI_ONE_PCI1)
printf("PCI1: 32-bit on PMC1\n");
printf("PCI2: 32-bit on PMC2, PMC3\n");
#else
printf("PCI1: 32-bit on PMC1, PMC2\n");
printf("PCI2: 32-bit on PMC3\n");
#endif
/* Reset to original I2C bus */
i2c_set_bus_num(orig_i2c_bus);
}
#endif /* CONFIG_PCISLAVE */
|
