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Diffstat (limited to 'board/omap3/evm/evm.c')
| -rw-r--r-- | board/omap3/evm/evm.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/board/omap3/evm/evm.c b/board/omap3/evm/evm.c new file mode 100644 index 0000000..b406312 --- /dev/null +++ b/board/omap3/evm/evm.c @@ -0,0 +1,122 @@ +/* + * (C) Copyright 2004-2008 + * Texas Instruments, <www.ti.com> + * + * Author : + * Manikandan Pillai <mani.pillai@ti.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/mem.h> +#include <asm/arch/mux.h> +#include <asm/arch/sys_proto.h> +#include <i2c.h> +#include <asm/mach-types.h> +#include "evm.h" + +/****************************************************************************** + * 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_OMAP3EVM; + /* boot param addr */ + gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); + + return 0; +} + +/****************************************************************************** + * Routine: misc_init_r + * Description: Init ethernet (done here so udelay works) + *****************************************************************************/ +int misc_init_r(void) +{ + +#ifdef CONFIG_DRIVER_OMAP34XX_I2C + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); +#endif + +#if defined(CONFIG_CMD_NET) + setup_net_chip(); +#endif + + 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_EVM(); +} + +/****************************************************************************** + * Routine: setup_net_chip + * Description: Setting up the configuration GPMC registers specific to the + * Ethernet hardware. + *****************************************************************************/ +static void setup_net_chip(void) +{ + gpio_t *gpio3_base = (gpio_t *)OMAP34XX_GPIO3_BASE; + gpmc_csx_t *gpmc_cs6_base = (gpmc_csx_t *)GPMC_CONFIG_CS6_BASE; + ctrl_t *ctrl_base = (ctrl_t *)OMAP34XX_CTRL_BASE; + + /* Configure GPMC registers */ + writel(NET_GPMC_CONFIG1, &gpmc_cs6_base->config1); + writel(NET_GPMC_CONFIG2, &gpmc_cs6_base->config2); + writel(NET_GPMC_CONFIG3, &gpmc_cs6_base->config3); + writel(NET_GPMC_CONFIG4, &gpmc_cs6_base->config4); + writel(NET_GPMC_CONFIG5, &gpmc_cs6_base->config5); + writel(NET_GPMC_CONFIG6, &gpmc_cs6_base->config6); + writel(NET_GPMC_CONFIG7, &gpmc_cs6_base->config7); + + /* Enable off mode for NWE in PADCONF_GPMC_NWE register */ + writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe); + /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */ + writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe); + /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */ + writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00, + &ctrl_base->gpmc_nadv_ale); + + /* Make GPIO 64 as output pin */ + writel(readl(&gpio3_base->oe) & ~(GPIO0), &gpio3_base->oe); + + /* Now send a pulse on the GPIO pin */ + writel(GPIO0, &gpio3_base->setdataout); + udelay(1); + writel(GPIO0, &gpio3_base->cleardataout); + udelay(1); + writel(GPIO0, &gpio3_base->setdataout); +} |