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https://github.com/brain-hackers/u-boot-brain
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5213d24d7b
The existing timing does not quite meet the minimum requirements in the LAN9221 datasheet. The timing in this patch solves problems noticed on some parts. The patch also combines the CS configuration for the overo and igep0020 boards per request. Signed-off-by: Philip Balister <philip@opensdr.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
140 lines
3.4 KiB
C
140 lines
3.4 KiB
C
/*
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* (C) Copyright 2010
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* ISEE 2007 SL, <www.iseebcn.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <netdev.h>
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#include <twl4030.h>
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#include <asm/io.h>
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#include <asm/gpio.h>
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#include <asm/arch/mem.h>
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#include <asm/arch/mmc_host_def.h>
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#include <asm/arch/mux.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/arch/omap_gpmc.h>
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#include <asm/mach-types.h>
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#include "igep0020.h"
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DECLARE_GLOBAL_DATA_PTR;
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/* GPMC definitions for LAN9221 chips */
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static const u32 gpmc_lan_config[] = {
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NET_LAN9221_GPMC_CONFIG1,
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NET_LAN9221_GPMC_CONFIG2,
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NET_LAN9221_GPMC_CONFIG3,
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NET_LAN9221_GPMC_CONFIG4,
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NET_LAN9221_GPMC_CONFIG5,
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NET_LAN9221_GPMC_CONFIG6,
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};
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/*
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* Routine: board_init
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* Description: Early hardware init.
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*/
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int board_init(void)
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{
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gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
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/* board id for Linux */
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gd->bd->bi_arch_number = MACH_TYPE_IGEP0020;
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/* boot param addr */
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gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
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return 0;
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}
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/*
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* Routine: setup_net_chip
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* Description: Setting up the configuration GPMC registers specific to the
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* Ethernet hardware.
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*/
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#if defined(CONFIG_CMD_NET)
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static void setup_net_chip(void)
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{
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struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
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enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5], 0x2C000000,
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GPMC_SIZE_16M);
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/* Enable off mode for NWE in PADCONF_GPMC_NWE register */
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writew(readw(&ctrl_base->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
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/* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
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writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
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/* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
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writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
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&ctrl_base->gpmc_nadv_ale);
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/* Make GPIO 64 as output pin and send a magic pulse through it */
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if (!gpio_request(64, "")) {
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gpio_direction_output(64, 0);
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gpio_set_value(64, 1);
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udelay(1);
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gpio_set_value(64, 0);
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udelay(1);
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gpio_set_value(64, 1);
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}
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}
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#endif
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#ifdef CONFIG_GENERIC_MMC
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int board_mmc_init(bd_t *bis)
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{
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omap_mmc_init(0);
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return 0;
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}
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#endif
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/*
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* Routine: misc_init_r
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* Description: Configure board specific parts
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*/
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int misc_init_r(void)
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{
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twl4030_power_init();
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#if defined(CONFIG_CMD_NET)
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setup_net_chip();
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#endif
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dieid_num_r();
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return 0;
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}
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/*
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* Routine: set_muxconf_regs
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* Description: Setting up the configuration Mux registers specific to the
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* hardware. Many pins need to be moved from protect to primary
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* mode.
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*/
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void set_muxconf_regs(void)
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{
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MUX_DEFAULT();
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}
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int board_eth_init(bd_t *bis)
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{
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int rc = 0;
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#ifdef CONFIG_SMC911X
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rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
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#endif
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return rc;
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}
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