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authorDave Liu <r63238@freescale.com>2007-09-18 12:37:57 +0800
committerKim Phillips <kim.phillips@freescale.com>2008-01-08 09:55:39 -0600
commit19580e660cc8da49f16536a8bd78c047c7bc12e5 (patch)
tree2b0d1681d4b61b0d7bbf5cf886d25fc3d2753ddc /board/freescale/mpc837xemds/pci.c
parent555da61702771fe0f76f3de23b4e7590f3704161 (diff)
downloadblackbird-obmc-uboot-19580e660cc8da49f16536a8bd78c047c7bc12e5.tar.gz
blackbird-obmc-uboot-19580e660cc8da49f16536a8bd78c047c7bc12e5.zip
mpc83xx: Add the support of MPC837xEMDS board
The MPC837xEMDS board support: * DDR2 400MHz hardcoded and SPD init * Local bus NOR Flash * I2C, UART, MII and RTC * eTSEC RGMII * PCI host Signed-off-by: Dave Liu <daveliu@freescale.com>
Diffstat (limited to 'board/freescale/mpc837xemds/pci.c')
-rw-r--r--board/freescale/mpc837xemds/pci.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/board/freescale/mpc837xemds/pci.c b/board/freescale/mpc837xemds/pci.c
new file mode 100644
index 0000000000..ab909790e5
--- /dev/null
+++ b/board/freescale/mpc837xemds/pci.c
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2007 Freescale Semiconductor, Inc.
+ *
+ * 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.
+ */
+
+#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>
+
+#if defined(CONFIG_PCI)
+static struct pci_region pci_regions[] = {
+ {
+ bus_start: CFG_PCI_MEM_BASE,
+ phys_start: CFG_PCI_MEM_PHYS,
+ size: CFG_PCI_MEM_SIZE,
+ flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
+ },
+ {
+ bus_start: CFG_PCI_MMIO_BASE,
+ phys_start: CFG_PCI_MMIO_PHYS,
+ size: CFG_PCI_MMIO_SIZE,
+ flags: PCI_REGION_MEM
+ },
+ {
+ bus_start: CFG_PCI_IO_BASE,
+ phys_start: CFG_PCI_IO_PHYS,
+ size: CFG_PCI_IO_SIZE,
+ flags: PCI_REGION_IO
+ }
+};
+
+void pci_init_board(void)
+{
+ volatile immap_t *immr = (volatile immap_t *)CFG_IMMR;
+ volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
+ volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
+ struct pci_region *reg[] = { pci_regions };
+
+ /* Enable all 5 PCI_CLK_OUTPUTS */
+ clk->occr |= 0xf8000000;
+ udelay(2000);
+
+ /* Configure PCI Local Access Windows */
+ pci_law[0].bar = CFG_PCI_MEM_PHYS & LAWBAR_BAR;
+ pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
+
+ pci_law[1].bar = CFG_PCI_IO_PHYS & LAWBAR_BAR;
+ pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
+
+ udelay(2000);
+
+ mpc83xx_pci_init(1, reg, 0);
+}
+#endif /* CONFIG_PCI */
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