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
119
120
121
|
/*
* Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/mmu.h>
#include <asm/io.h>
#include <mpc83xx.h>
#include <pci.h>
#include <i2c.h>
#include <asm/fsl_i2c.h>
DECLARE_GLOBAL_DATA_PTR;
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
void pci_init_board(void)
{
volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
#ifndef CONFIG_MPC83XX_PCI2
struct pci_region *reg[] = { pci1_regions };
#else
struct pci_region *reg[] = { pci1_regions, pci2_regions };
#endif
u8 reg8;
#ifdef CONFIG_HARD_I2C
i2c_set_bus_num(1);
/* Read the PCI_M66EN jumper setting */
if ((i2c_read(CONFIG_SYS_I2C_8574_ADDR2, 0, 0, ®8, sizeof(reg8)) == 0) ||
(i2c_read(CONFIG_SYS_I2C_8574A_ADDR2, 0, 0, ®8, sizeof(reg8)) == 0)) {
if (reg8 & I2C_8574_PCI66)
clk->occr = 0xff000000; /* 66 MHz PCI */
else
clk->occr = 0xff600001; /* 33 MHz PCI */
} else {
clk->occr = 0xff600001; /* 33 MHz PCI */
}
#else
clk->occr = 0xff000000; /* 66 MHz PCI */
#endif
udelay(2000);
/* Configure PCI Local Access Windows */
pci_law[0].bar = CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR;
pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_1G;
pci_law[1].bar = CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR;
pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_32M;
udelay(2000);
#ifndef CONFIG_MPC83XX_PCI2
mpc83xx_pci_init(1, reg);
#else
mpc83xx_pci_init(2, reg);
#endif
}
|
