pci.c
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/*
* Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
*
* Copyright (C) 2011 Matrix Vision GmbH
* Andre Schwarz <andre.schwarz@matrix-vision.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <mpc83xx.h>
#include <pci.h>
#include <asm/io.h>
#include <asm/fsl_mpc83xx_serdes.h>
#include "mergerbox.h"
#include "fpga.h"
#include "../common/mv_common.h"
static struct pci_region pci_regions[] = {
{
.bus_start = CONFIG_SYS_PCI_MEM_BASE,
.phys_start = CONFIG_SYS_PCI_MEM_PHYS,
.size = CONFIG_SYS_PCI_MEM_SIZE,
.flags = PCI_REGION_MEM | PCI_REGION_PREFETCH
},
{
.bus_start = CONFIG_SYS_PCI_MMIO_BASE,
.phys_start = CONFIG_SYS_PCI_MMIO_PHYS,
.size = CONFIG_SYS_PCI_MMIO_SIZE,
.flags = PCI_REGION_MEM
},
{
.bus_start = CONFIG_SYS_PCI_IO_BASE,
.phys_start = CONFIG_SYS_PCI_IO_PHYS,
.size = CONFIG_SYS_PCI_IO_SIZE,
.flags = PCI_REGION_IO
}
};
static struct pci_region pcie_regions_0[] = {
{
.bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
.phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
.size = CONFIG_SYS_PCIE1_MEM_SIZE,
.flags = PCI_REGION_MEM,
},
{
.bus_start = CONFIG_SYS_PCIE1_IO_BASE,
.phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
.size = CONFIG_SYS_PCIE1_IO_SIZE,
.flags = PCI_REGION_IO,
},
};
static struct pci_region pcie_regions_1[] = {
{
.bus_start = CONFIG_SYS_PCIE2_MEM_BASE,
.phys_start = CONFIG_SYS_PCIE2_MEM_PHYS,
.size = CONFIG_SYS_PCIE2_MEM_SIZE,
.flags = PCI_REGION_MEM,
},
{
.bus_start = CONFIG_SYS_PCIE2_IO_BASE,
.phys_start = CONFIG_SYS_PCIE2_IO_PHYS,
.size = CONFIG_SYS_PCIE2_IO_SIZE,
.flags = PCI_REGION_IO,
},
};
void pci_init_board(void)
{
volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
volatile sysconf83xx_t *sysconf = &immr->sysconf;
volatile clk83xx_t *clk = (clk83xx_t *)&immr->clk;
volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
volatile law83xx_t *pcie_law = sysconf->pcielaw;
struct pci_region *reg[] = { pci_regions };
struct pci_region *pcie_reg[] = { pcie_regions_0, pcie_regions_1, };
volatile gpio83xx_t *gpio;
gpio = (gpio83xx_t *)&immr->gpio[0];
gpio->dat = MV_GPIO1_DAT;
gpio->odr = MV_GPIO1_ODE;
gpio->dir = MV_GPIO1_OUT;
gpio = (gpio83xx_t *)&immr->gpio[1];
gpio->dat = MV_GPIO2_DAT;
gpio->odr = MV_GPIO2_ODE;
gpio->dir = MV_GPIO2_OUT;
printf("SICRH / SICRL : 0x%08x / 0x%08x\n", immr->sysconf.sicrh,
immr->sysconf.sicrl);
/* Enable PCI_CLK[0:1] */
clk->occr |= 0xc0000000;
udelay(2000);
mergerbox_init_fpga();
mv_load_fpga();
mergerbox_tft_dim(0);
/* Configure PCI Local Access Windows */
pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR;
pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR;
pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
udelay(2000);
mpc83xx_pci_init(1, reg);
/* Deassert the resets in the control register */
out_be32(&sysconf->pecr1, 0xE0008000);
out_be32(&sysconf->pecr2, 0xE0008000);
udelay(2000);
out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);
out_be32(&pcie_law[1].bar, CONFIG_SYS_PCIE2_BASE & LAWBAR_BAR);
out_be32(&pcie_law[1].ar, LBLAWAR_EN | LBLAWAR_512MB);
mpc83xx_pcie_init(2, pcie_reg);
}