93 lines
2.1 KiB
C
93 lines
2.1 KiB
C
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
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*
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* Authors: Igor Grinberg <grinberg@compulab.co.il>
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*/
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#include <common.h>
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#include <netdev.h>
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#include <asm/io.h>
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#include <linux/errno.h>
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#include <asm/arch/cpu.h>
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#include <asm/arch/mem.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/gpio.h>
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#include "common.h"
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static u32 cl_omap3_smc911x_gpmc_net_config[GPMC_MAX_REG] = {
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NET_GPMC_CONFIG1,
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NET_GPMC_CONFIG2,
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NET_GPMC_CONFIG3,
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NET_GPMC_CONFIG4,
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NET_GPMC_CONFIG5,
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NET_GPMC_CONFIG6,
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0
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};
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static void cl_omap3_smc911x_setup_net_chip_gmpc(int cs, u32 base_addr)
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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(cl_omap3_smc911x_gpmc_net_config,
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&gpmc_cfg->cs[cs], base_addr, 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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}
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#ifdef CONFIG_OMAP_GPIO
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static int cl_omap3_smc911x_reset_net_chip(int gpio)
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{
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int err;
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if (!gpio_is_valid(gpio))
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return -EINVAL;
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err = gpio_request(gpio, "eth rst");
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if (err)
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return err;
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/* Set gpio as output and send a pulse */
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gpio_direction_output(gpio, 1);
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udelay(1);
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gpio_set_value(gpio, 0);
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mdelay(40);
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gpio_set_value(gpio, 1);
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mdelay(1);
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return 0;
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}
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#else /* !CONFIG_OMAP_GPIO */
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static inline int cl_omap3_smc911x_reset_net_chip(int gpio) { return 0; }
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#endif /* CONFIG_OMAP_GPIO */
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int cl_omap3_smc911x_init(int id, int cs, u32 base_addr,
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int (*reset)(int), int rst_gpio)
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{
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int ret;
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cl_omap3_smc911x_setup_net_chip_gmpc(cs, base_addr);
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if (reset)
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reset(rst_gpio);
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else
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cl_omap3_smc911x_reset_net_chip(rst_gpio);
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ret = smc911x_initialize(id, base_addr);
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if (ret > 0)
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return ret;
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printf("Failed initializing SMC911x! ");
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return 0;
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}
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