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>

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 */