Merge branch 'master' of git://www.denx.de/git/u-boot-mpc83xx

1 files changed, 133 insertions, 0 deletions

diff --git a/board/mvblm7/pci.c b/board/mvblm7/pci.c
new file mode 100644
index 0000000..ef34a6b
--- /dev/null
+++ b/board/mvblm7/pci.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) Freescale Semiconductor, Inc. 2006. All rights reserved.
+ *
+ * (C) Copyright 2008
+ * Andre Schwarz, Matrix Vision GmbH, andre.schwarz@matrix-vision.de
+ *
+ * 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 <common.h>
+#if defined(CONFIG_OF_LIBFDT)
+#include <libfdt.h>
+#endif
+#include <pci.h>
+#include <mpc83xx.h>
+#include <fpga.h>
+#include "mvblm7.h"
+#include "fpga.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int mvblm7_load_fpga(void)
+{
+	size_t data_size = 0;
+	void *fpga_data = NULL;
+	char *datastr = getenv("fpgadata");
+	char *sizestr = getenv("fpgadatasize");
+
+	if (datastr)
+		fpga_data = (void *)simple_strtoul(datastr, NULL, 16);
+	if (sizestr)
+		data_size = (size_t)simple_strtoul(sizestr, NULL, 16);
+
+	return fpga_load(0, fpga_data, data_size);
+}
+
+static struct pci_region pci_regions[] = {
+	{
+		bus_start: CFG_PCI1_MEM_BASE,
+		phys_start: CFG_PCI1_MEM_PHYS,
+		size: CFG_PCI1_MEM_SIZE,
+		flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
+	},
+	{
+		bus_start: CFG_PCI1_MMIO_BASE,
+		phys_start: CFG_PCI1_MMIO_PHYS,
+		size: CFG_PCI1_MMIO_SIZE,
+		flags: PCI_REGION_MEM
+	},
+	{
+		bus_start: CFG_PCI1_IO_BASE,
+		phys_start: CFG_PCI1_IO_PHYS,
+		size: CFG_PCI1_IO_SIZE,
+		flags: PCI_REGION_IO
+	}
+};
+
+void pci_init_board(void)
+{
+	char *s;
+	int i;
+	int warmboot;
+	int load_fpga;
+	volatile immap_t *immr;
+	volatile pcictrl83xx_t *pci_ctrl;
+	volatile gpio83xx_t *gpio;
+	volatile clk83xx_t *clk;
+	volatile law83xx_t *pci_law;
+	struct pci_region *reg[] = { pci_regions };
+
+	load_fpga = 1;
+	immr = (immap_t *) CFG_IMMR;
+	clk = (clk83xx_t *) &immr->clk;
+	pci_ctrl = immr->pci_ctrl;
+	pci_law = immr->sysconf.pcilaw;
+	gpio  = (volatile gpio83xx_t *)&immr->gpio[0];
+
+	s = getenv("skip_fpga");
+	if (s) {
+		printf("found 'skip_fpga' -> FPGA _not_ loaded !\n");
+		load_fpga = 0;
+	}
+
+	gpio->dat = MV_GPIO_DAT;
+	gpio->odr = MV_GPIO_ODE;
+	if (load_fpga)
+		gpio->dir = MV_GPIO_OUT;
+	else
+		gpio->dir = MV_GPIO_OUT & ~(FPGA_DIN|FPGA_CCLK);
+
+	printf("SICRH / SICRL : 0x%08x / 0x%08x\n", immr->sysconf.sicrh,
+		immr->sysconf.sicrl);
+
+	mvblm7_init_fpga();
+	if (load_fpga)
+		mvblm7_load_fpga();
+
+	/* Enable PCI_CLK_OUTPUTs 0 and 1 with 1:1 clocking */
+	clk->occr = 0xc0000000;
+
+	pci_ctrl[0].gcr = 0;
+	udelay(2000);
+	pci_ctrl[0].gcr = 1;
+
+	for (i = 0; i < 1000; ++i)
+		udelay(1000);
+
+	pci_law[0].bar = CFG_PCI1_MEM_PHYS & LAWBAR_BAR;
+	pci_law[0].ar = LBLAWAR_EN | LBLAWAR_1GB;
+
+	pci_law[1].bar = CFG_PCI1_IO_PHYS & LAWBAR_BAR;
+	pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
+
+	warmboot = gd->bd->bi_bootflags & BOOTFLAG_WARM;
+
+	mpc83xx_pci_init(1, reg, warmboot);
+}