uboot-vybrid_public/board/freescale/mpc8308rdb/mpc8308rdb.c

/*
 * Copyright (C) 2010 Freescale Semiconductor, Inc.
 * Copyright (C) 2010 Ilya Yanok, Emcraft Systems, yanok@emcraft.com
 *
 * 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>
#include <hwconfig.h>
#include <i2c.h>
#include <libfdt.h>
#include <fdt_support.h>
#include <pci.h>
#include <mpc83xx.h>
#include <vsc7385.h>
#include <netdev.h>
#include <asm/io.h>
#include <asm/fsl_serdes.h>
#include <asm/fsl_mpc83xx_serdes.h>

DECLARE_GLOBAL_DATA_PTR;

int board_early_init_f(void)
{
	immap_t *im = (immap_t *)CONFIG_SYS_IMMR;

	if (in_be32(&im->pmc.pmccr1) & PMCCR1_POWER_OFF)
		gd->flags |= GD_FLG_SILENT;

	return 0;
}

static u8 read_board_info(void)
{
	u8 val8;
	i2c_set_bus_num(0);

	if (i2c_read(CONFIG_SYS_I2C_PCF8574A_ADDR, 0, 0, &val8, 1) == 0)
		return val8;
	else
		return 0;
}

int checkboard(void)
{
	static const char * const rev_str[] = {
		"1.0",
		"<reserved>",
		"<reserved>",
		"<reserved>",
		"<unknown>",
	};
	u8 info;
	int i;

	info = read_board_info();
	i = (!info) ? 4 : info & 0x03;

	printf("Board: Freescale MPC8308RDB Rev %s\n", rev_str[i]);

	return 0;
}

static struct pci_region pcie_regions_0[] = {
	{
		.bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
		.phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
		.size = CONFIG_SYS_PCIE1_MEM_SIZE,
		.flags = PCI_REGION_MEM,
	},
	{
		.bus_start = CONFIG_SYS_PCIE1_IO_BASE,
		.phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
		.size = CONFIG_SYS_PCIE1_IO_SIZE,
		.flags = PCI_REGION_IO,
	},
};

void pci_init_board(void)
{
	immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
	sysconf83xx_t *sysconf = &immr->sysconf;
	clk83xx_t *clk = (clk83xx_t *)&immr->clk;
	law83xx_t *pcie_law = sysconf->pcielaw;
	struct pci_region *pcie_reg[] = { pcie_regions_0 };

	fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_PEX,
					FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);

	clrsetbits_be32(&clk->sccr, SCCR_PCIEXP1CM ,
				    SCCR_PCIEXP1CM_1);

	/* Deassert the resets in the control register */
	out_be32(&sysconf->pecr1, 0xE0008000);
	udelay(2000);

	/* Configure PCI Express Local Access Windows */
	out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
	out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);

	mpc83xx_pcie_init(1, pcie_reg, 0);
}
/*
 * Miscellaneous late-boot configurations
 *
 * If a VSC7385 microcode image is present, then upload it.
*/
int misc_init_r(void)
{
#ifdef CONFIG_VSC7385_IMAGE
	if (vsc7385_upload_firmware((void *) CONFIG_VSC7385_IMAGE,
		CONFIG_VSC7385_IMAGE_SIZE)) {
		puts("Failure uploading VSC7385 microcode.\n");
		return 1;
	}
#endif

	return 0;
}
#if defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
	ft_cpu_setup(blob, bd);
	fdt_fixup_dr_usb(blob, bd);
}
#endif

int board_eth_init(bd_t *bis)
{
	int rv, num_if = 0;

	/* Initialize TSECs first */
	if ((rv = cpu_eth_init(bis)) >= 0)
		num_if += rv;
	else
		printf("ERROR: failed to initialize TSECs.\n");

	if ((rv = pci_eth_init(bis)) >= 0)
		num_if += rv;
	else
		printf("ERROR: failed to initialize PCI Ethernet.\n");

	return num_if;
}