/* * (C) Copyright 2004-2008 * Texas Instruments, <www.ti.com> * * Author : *	Sunil Kumar <sunilsaini05@gmail.com> *	Shashi Ranjan <shashiranjanmca05@gmail.com> * * Derived from Beagle Board and 3430 SDP code by *	Richard Woodruff <r-woodruff2@ti.com> *	Syed Mohammed Khasim <khasim@ti.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 <asm/io.h>#include <asm/arch/mux.h>#include <asm/arch/sys_proto.h>#include <asm/mach-types.h>#include "beagle.h"static int beagle_revision_c;/****************************************************************************** * Routine: board_init * Description: Early hardware init. *****************************************************************************/int board_init(void){	DECLARE_GLOBAL_DATA_PTR;	gpmc_init(); /* in SRAM or SDRAM, finish GPMC */	/* board id for Linux */	gd->bd->bi_arch_number = MACH_TYPE_OMAP3_BEAGLE;	/* boot param addr */	gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);	return 0;}/****************************************************************************** * Routine: beagle_get_revision * Description: Return revision of the BeagleBoard this code is running on. *              If it is a revision Ax/Bx board, this function returns 0, *              on a revision C board you will get a 1. *****************************************************************************/int beagle_get_revision(void){	return beagle_revision_c;}/****************************************************************************** * Routine: beagle_identify * Description: Detect if we are running on a Beagle revision Ax/Bx or *              Cx. This can be done by GPIO_171. If this is low, we are *              running on a revision C board. *****************************************************************************/void beagle_identify(void){	gpio_t *gpio6_base = (gpio_t *)OMAP34XX_GPIO6_BASE;	/* Configure GPIO 171 as input */	writel(readl(&gpio6_base->oe) | GPIO11, &gpio6_base->oe);	/* Get value of GPIO 171 */	beagle_revision_c = readl(&gpio6_base->datain) & BOARD_REVISION_MASK;	printf("Board revision ");	if (beagle_revision_c) {		printf("Ax/Bx\n");		beagle_revision_c = 0;	} else {		printf("C\n");		beagle_revision_c = 1;	}}/****************************************************************************** * Routine: misc_init_r * Description: Configure board specific parts *****************************************************************************/int misc_init_r(void){	gpio_t *gpio5_base = (gpio_t *)OMAP34XX_GPIO5_BASE;	gpio_t *gpio6_base = (gpio_t *)OMAP34XX_GPIO6_BASE;	power_init_r();	/* Configure GPIOs to output */	writel(~(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1), &gpio6_base->oe);	writel(~(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |		GPIO15 | GPIO14 | GPIO13 | GPIO12), &gpio5_base->oe);	/* Set GPIOs */	writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,		&gpio6_base->setdataout);	writel(GPIO31 | GPIO30 | GPIO29 | GPIO28 | GPIO22 | GPIO21 |		GPIO15 | GPIO14 | GPIO13 | GPIO12, &gpio5_base->setdataout);	beagle_identify();	dieid_num_r();	return 0;}/****************************************************************************** * Routine: set_muxconf_regs * Description: Setting up the configuration Mux registers specific to the *		hardware. Many pins need to be moved from protect to primary *		mode. *****************************************************************************/void set_muxconf_regs(void){	MUX_BEAGLE();}