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+/*
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+ * Copyright (C) Freescale Semiconductor, Inc. 2006. All rights reserved.
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+ *
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+ * (C) Copyright 2008
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+ * Andre Schwarz, Matrix Vision GmbH, andre.schwarz@matrix-vision.de
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+ *
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+ * See file CREDITS for list of people who contributed to this
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+ * project.
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+ *
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+ * This program is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU General Public License as
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+ * published by the Free Software Foundation; either version 2 of
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+ * the License, or (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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+ * MA 02111-1307 USA
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+ */
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+
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+#include <common.h>
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+#if defined(CONFIG_OF_LIBFDT)
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+#include <libfdt.h>
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+#endif
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+#include <pci.h>
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+#include <mpc83xx.h>
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+#include "mvblm7.h"
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+
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+DECLARE_GLOBAL_DATA_PTR;
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+
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+/* System RAM mapped to PCI space */
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+#define CONFIG_PCI_SYS_MEM_BUS CFG_SDRAM_BASE
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+#define CONFIG_PCI_SYS_MEM_PHYS CFG_SDRAM_BASE
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+
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+#define SLOT0_IRQ 3
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+#define SLOT1_IRQ 4
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+void pci_mvblm7_fixup_irq(struct pci_controller *hose, pci_dev_t dev)
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+{
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+ unsigned char line = 0xff;
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+
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+ if (PCI_BUS(dev) == 0) {
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+ switch (PCI_DEV(dev)) {
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+ case 0x0:
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+ return;
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+ case 0xb:
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+ line = 0;
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+ break;
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+ case 0xc:
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+ line = 1;
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+ break;
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+ default:
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+ printf("***pci_scan: illegal dev = 0x%08x\n",
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+ PCI_DEV(dev));
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+ line = 0xff;
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+ break;
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+ }
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+ pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, line);
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+ }
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+}
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+
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+static struct pci_controller pci_hose = {
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+ fixup_irq:pci_mvblm7_fixup_irq
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+};
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+
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+int mvblm7_load_fpga(void)
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+{
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+ size_t data_size = 0;
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+ void *fpga_data = NULL;
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+ char *datastr = getenv("fpgadata");
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+ char *sizestr = getenv("fpgadatasize");
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+
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+ if (datastr)
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+ fpga_data = (void *)simple_strtoul(datastr, NULL, 16);
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+ if (sizestr)
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+ data_size = (size_t)simple_strtoul(sizestr, NULL, 16);
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+
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+ return fpga_load(0, fpga_data, data_size);
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+}
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+
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+static struct pci_region pci_regions[] = {
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+ {
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+ bus_start: CFG_PCI1_MEM_BASE,
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+ phys_start: CFG_PCI1_MEM_PHYS,
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+ size: CFG_PCI1_MEM_SIZE,
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+ flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
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+ },
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+ {
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+ bus_start: CFG_PCI1_MMIO_BASE,
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+ phys_start: CFG_PCI1_MMIO_PHYS,
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+ size: CFG_PCI1_MMIO_SIZE,
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+ flags: PCI_REGION_MEM
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+ },
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+ {
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+ bus_start: CFG_PCI1_IO_BASE,
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+ phys_start: CFG_PCI1_IO_PHYS,
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+ size: CFG_PCI1_IO_SIZE,
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+ flags: PCI_REGION_IO
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+ }
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+};
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+
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+void pci_init_board(void)
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+{
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+ char *s;
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+ int i;
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+ int warmboot;
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+ int load_fpga;
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+ volatile immap_t *immr;
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+ volatile pcictrl83xx_t *pci_ctrl;
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+ volatile gpio83xx_t *gpio;
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+ volatile clk83xx_t *clk;
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+ volatile law83xx_t *pci_law;
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+ struct pci_region *reg[] = { pci_regions };
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+
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+ load_fpga = 1;
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+ immr = (immap_t *) CFG_IMMR;
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+ clk = (clk83xx_t *) &immr->clk;
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+ pci_ctrl = immr->pci_ctrl;
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+ pci_law = immr->sysconf.pcilaw;
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+ gpio = (volatile gpio83xx_t *)&immr->gpio[0];
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+
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+ s = getenv("skip_fpga");
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+ if (s) {
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+ printf("found 'skip_fpga' -> FPGA _not_ loaded !\n");
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+ load_fpga = 0;
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+ }
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+
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+ gpio->dat = MV_GPIO_DAT;
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+ gpio->odr = MV_GPIO_ODE;
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+ if (load_fpga)
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+ gpio->dir = MV_GPIO_OUT;
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+ else
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+ gpio->dir = MV_GPIO_OUT & ~(FPGA_DIN|FPGA_CCLK);
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+
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+ printf("SICRH / SICRL : 0x%08x / 0x%08x\n", immr->sysconf.sicrh,
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+ immr->sysconf.sicrl);
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+
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+ mvblm7_init_fpga();
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+ if (load_fpga)
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+ mvblm7_load_fpga();
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+
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+ /* Enable PCI_CLK_OUTPUTs 0 and 1 with 1:1 clocking */
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+ clk->occr = 0xc0000000;
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+
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+ pci_ctrl[0].gcr = 0;
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+ udelay(2000);
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+ pci_ctrl[0].gcr = 1;
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+
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+ for (i = 0; i < 1000; ++i)
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+ udelay(1000);
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+
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+ pci_law[0].bar = CFG_PCI1_MEM_PHYS & LAWBAR_BAR;
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+ pci_law[0].ar = LBLAWAR_EN | LBLAWAR_1GB;
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+
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+ pci_law[1].bar = CFG_PCI1_IO_PHYS & LAWBAR_BAR;
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+ pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
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+
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+ warmboot = gd->bd->bi_bootflags & BOOTFLAG_WARM;
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+
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+ mpc83xx_pci_init(1, reg, warmboot);
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+}
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