common: Drop linux/delay.h from common header
[oweals/u-boot.git] / board / freescale / mpc8349itx / pci.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
4  */
5
6 #include <common.h>
7 #include <init.h>
8 #include <linux/delay.h>
9
10 #include <asm/mmu.h>
11 #include <asm/io.h>
12 #include <mpc83xx.h>
13 #include <pci.h>
14 #include <i2c.h>
15 #include <asm/fsl_i2c.h>
16
17 static struct pci_region pci1_regions[] = {
18         {
19                 bus_start: CONFIG_SYS_PCI1_MEM_BASE,
20                 phys_start: CONFIG_SYS_PCI1_MEM_PHYS,
21                 size: CONFIG_SYS_PCI1_MEM_SIZE,
22                 flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
23         },
24         {
25                 bus_start: CONFIG_SYS_PCI1_IO_BASE,
26                 phys_start: CONFIG_SYS_PCI1_IO_PHYS,
27                 size: CONFIG_SYS_PCI1_IO_SIZE,
28                 flags: PCI_REGION_IO
29         },
30         {
31                 bus_start: CONFIG_SYS_PCI1_MMIO_BASE,
32                 phys_start: CONFIG_SYS_PCI1_MMIO_PHYS,
33                 size: CONFIG_SYS_PCI1_MMIO_SIZE,
34                 flags: PCI_REGION_MEM
35         },
36 };
37
38 #ifdef CONFIG_MPC83XX_PCI2
39 static struct pci_region pci2_regions[] = {
40         {
41                 bus_start: CONFIG_SYS_PCI2_MEM_BASE,
42                 phys_start: CONFIG_SYS_PCI2_MEM_PHYS,
43                 size: CONFIG_SYS_PCI2_MEM_SIZE,
44                 flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
45         },
46         {
47                 bus_start: CONFIG_SYS_PCI2_IO_BASE,
48                 phys_start: CONFIG_SYS_PCI2_IO_PHYS,
49                 size: CONFIG_SYS_PCI2_IO_SIZE,
50                 flags: PCI_REGION_IO
51         },
52         {
53                 bus_start: CONFIG_SYS_PCI2_MMIO_BASE,
54                 phys_start: CONFIG_SYS_PCI2_MMIO_PHYS,
55                 size: CONFIG_SYS_PCI2_MMIO_SIZE,
56                 flags: PCI_REGION_MEM
57         },
58 };
59 #endif
60
61 void pci_init_board(void)
62 {
63         volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
64         volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
65         volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
66 #ifndef CONFIG_MPC83XX_PCI2
67         struct pci_region *reg[] = { pci1_regions };
68 #else
69         struct pci_region *reg[] = { pci1_regions, pci2_regions };
70 #endif
71         u8 reg8;
72
73 #if defined(CONFIG_SYS_I2C)
74         i2c_set_bus_num(1);
75         /* Read the PCI_M66EN jumper setting */
76         if ((i2c_read(CONFIG_SYS_I2C_8574_ADDR2, 0, 0, &reg8, sizeof(reg8)) == 0) ||
77             (i2c_read(CONFIG_SYS_I2C_8574A_ADDR2, 0, 0, &reg8, sizeof(reg8)) == 0)) {
78                 if (reg8 & I2C_8574_PCI66)
79                         clk->occr = 0xff000000; /* 66 MHz PCI */
80                 else
81                         clk->occr = 0xff600001; /* 33 MHz PCI */
82         } else {
83                 clk->occr = 0xff600001; /* 33 MHz PCI */
84         }
85 #else
86         clk->occr = 0xff000000; /* 66 MHz PCI */
87 #endif
88         udelay(2000);
89
90         /* Configure PCI Local Access Windows */
91         pci_law[0].bar = CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR;
92         pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_1G;
93
94         pci_law[1].bar = CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR;
95         pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_32M;
96
97         udelay(2000);
98
99 #ifndef CONFIG_MPC83XX_PCI2
100         mpc83xx_pci_init(1, reg);
101 #else
102         mpc83xx_pci_init(2, reg);
103 #endif
104 }