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-rw-r--r--u-boot/board/sbc8349/pci.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/u-boot/board/sbc8349/pci.c b/u-boot/board/sbc8349/pci.c
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+++ b/u-boot/board/sbc8349/pci.c
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+/*
+ * pci.c -- WindRiver SBC8349 PCI board support.
+ * Copyright (c) 2006 Wind River Systems, Inc.
+ * Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
+ *
+ * Based on MPC8349 PCI support but w/o PIB related code.
+ *
+ * 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 <asm/mmu.h>
+#include <asm/io.h>
+#include <common.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
+ },
+};
+
+/*
+ * pci_init_board()
+ *
+ * NOTICE: PCI2 is not supported. There is only one
+ * physical PCI slot on the board.
+ *
+ */
+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;
+ struct pci_region *reg[] = { pci1_regions };
+
+ /* Enable all 8 PCI_CLK_OUTPUTS */
+ clk->occr = 0xff000000;
+ 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_4M;
+
+ udelay(2000);
+
+ mpc83xx_pci_init(1, reg);
+}