mpc83xx: Add esd VME8349 board support

This patch adds support for the esd VME8349 board equipped with the
MPC8349. It's a VME PMC carrier board equipped with the Tundra
TSI148 VME-bridge.

Signed-off-by: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>

1 files changed, 119 insertions, 0 deletions

diff --git a/board/esd/vme8349/pci.c b/board/esd/vme8349/pci.c
new file mode 100644
index 0000000..d15203c
--- /dev/null
+++ b/board/esd/vme8349/pci.c
@@ -0,0 +1,119 @@
+/*
+ * pci.c -- esd VME8349 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 };
+	u8 reg8;
+	int monarch = 0;
+
+	i2c_set_bus_num(1);
+	/* Read the PCI_M66EN jumper setting */
+	if ((i2c_read(CONFIG_SYS_I2C_8574_ADDR2, 0, 0, &reg8, 1) == 0) ||
+	    (i2c_read(0x38                     , 0, 0, &reg8, 1) == 0)) {
+		if (reg8 & 0x40) {
+			clk->occr = 0xff000000;	/* 66 MHz PCI */
+			printf("PCI:   66MHz\n");
+		} else {
+			clk->occr = 0xffff0003;	/* 33 MHz PCI */
+			printf("PCI:   33MHz\n");
+		}
+		if (((reg8 & 0x01) == 0) || ((reg8 & 0x02) == 0))
+			monarch = 1;
+	} else {
+		clk->occr = 0xffff0003;	/* 33 MHz PCI */
+		printf("PCI:   33MHz (I2C read failed)\n");
+	}
+	udelay(2000);
+
+	/*
+	 * Assert/deassert PCI reset
+	 */
+	setbits_be32(&immr->gpio[0].dat, 0x00800000);
+	setbits_be32(&immr->gpio[0].dir, 0x00800000);
+	setbits_be32(&immr->gpio[1].dir, 0x08800000);
+	udelay(200);
+	setbits_be32(&immr->gpio[1].dat, 0x08000000);
+	udelay(200);
+	setbits_be32(&immr->gpio[1].dat, 0x08800000);
+	udelay(600000);
+	clrbits_be32(&immr->gpio[1].dat, 0x00100000);
+
+	/* 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);
+
+	if (monarch == 0)
+		mpc83xx_pci_init(1, reg, 0);
+}