2 * Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
4 * See file CREDITS for list of people who contributed to this
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
18 static struct pci_region pci_regions[] = {
20 bus_start: CONFIG_SYS_PCI_MEM_BASE,
21 phys_start: CONFIG_SYS_PCI_MEM_PHYS,
22 size: CONFIG_SYS_PCI_MEM_SIZE,
23 flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
26 bus_start: CONFIG_SYS_PCI_MMIO_BASE,
27 phys_start: CONFIG_SYS_PCI_MMIO_PHYS,
28 size: CONFIG_SYS_PCI_MMIO_SIZE,
32 bus_start: CONFIG_SYS_PCI_IO_BASE,
33 phys_start: CONFIG_SYS_PCI_IO_PHYS,
34 size: CONFIG_SYS_PCI_IO_SIZE,
39 static struct pci_region pcie_regions_0[] = {
41 .bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
42 .phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
43 .size = CONFIG_SYS_PCIE1_MEM_SIZE,
44 .flags = PCI_REGION_MEM,
47 .bus_start = CONFIG_SYS_PCIE1_IO_BASE,
48 .phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
49 .size = CONFIG_SYS_PCIE1_IO_SIZE,
50 .flags = PCI_REGION_IO,
54 static struct pci_region pcie_regions_1[] = {
56 .bus_start = CONFIG_SYS_PCIE2_MEM_BASE,
57 .phys_start = CONFIG_SYS_PCIE2_MEM_PHYS,
58 .size = CONFIG_SYS_PCIE2_MEM_SIZE,
59 .flags = PCI_REGION_MEM,
62 .bus_start = CONFIG_SYS_PCIE2_IO_BASE,
63 .phys_start = CONFIG_SYS_PCIE2_IO_PHYS,
64 .size = CONFIG_SYS_PCIE2_IO_SIZE,
65 .flags = PCI_REGION_IO,
69 void pci_init_board(void)
71 volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
72 volatile sysconf83xx_t *sysconf = &immr->sysconf;
73 volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
74 volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
75 volatile law83xx_t *pcie_law = sysconf->pcielaw;
76 struct pci_region *reg[] = { pci_regions };
77 struct pci_region *pcie_reg[] = { pcie_regions_0, pcie_regions_1, };
78 u32 spridr = in_be32(&immr->sysconf.spridr);
80 /* Enable all 5 PCI_CLK_OUTPUTS */
81 clk->occr |= 0xf8000000;
84 /* Configure PCI Local Access Windows */
85 pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR;
86 pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
88 pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR;
89 pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
91 mpc83xx_pci_init(1, reg);
93 /* There is no PEX in MPC8379 parts. */
94 if (PARTID_NO_E(spridr) == SPR_8379)
97 /* Configure the clock for PCIE controller */
98 clrsetbits_be32(&clk->sccr, SCCR_PCIEXP1CM | SCCR_PCIEXP2CM,
99 SCCR_PCIEXP1CM_1 | SCCR_PCIEXP2CM_1);
101 /* Deassert the resets in the control register */
102 out_be32(&sysconf->pecr1, 0xE0008000);
103 out_be32(&sysconf->pecr2, 0xE0008000);
106 /* Configure PCI Express Local Access Windows */
107 out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
108 out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);
110 out_be32(&pcie_law[1].bar, CONFIG_SYS_PCIE2_BASE & LAWBAR_BAR);
111 out_be32(&pcie_law[1].ar, LBLAWAR_EN | LBLAWAR_512MB);
113 mpc83xx_pcie_init(2, pcie_reg);