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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
*
* Authors: Igor Grinberg <grinberg@compulab.co.il>
*/
#include <common.h>
#include <netdev.h>
#include <linux/delay.h>
#include <asm/io.h>
#include <linux/errno.h>
#include <asm/arch/cpu.h>
#include <asm/arch/mem.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include "common.h"
static u32 cl_omap3_smc911x_gpmc_net_config[GPMC_MAX_REG] = {
NET_GPMC_CONFIG1,
NET_GPMC_CONFIG2,
NET_GPMC_CONFIG3,
NET_GPMC_CONFIG4,
NET_GPMC_CONFIG5,
NET_GPMC_CONFIG6,
0
};
static void cl_omap3_smc911x_setup_net_chip_gmpc(int cs, u32 base_addr)
{
struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
enable_gpmc_cs_config(cl_omap3_smc911x_gpmc_net_config,
&gpmc_cfg->cs[cs], base_addr, GPMC_SIZE_16M);
/* 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);
}
#ifdef CONFIG_OMAP_GPIO
static int cl_omap3_smc911x_reset_net_chip(int gpio)
{
int err;
if (!gpio_is_valid(gpio))
return -EINVAL;
err = gpio_request(gpio, "eth rst");
if (err)
return err;
/* Set gpio as output and send a pulse */
gpio_direction_output(gpio, 1);
udelay(1);
gpio_set_value(gpio, 0);
mdelay(40);
gpio_set_value(gpio, 1);
mdelay(1);
return 0;
}
#else /* !CONFIG_OMAP_GPIO */
static inline int cl_omap3_smc911x_reset_net_chip(int gpio) { return 0; }
#endif /* CONFIG_OMAP_GPIO */
int cl_omap3_smc911x_init(int id, int cs, u32 base_addr,
int (*reset)(int), int rst_gpio)
{
int ret;
cl_omap3_smc911x_setup_net_chip_gmpc(cs, base_addr);
if (reset)
reset(rst_gpio);
else
cl_omap3_smc911x_reset_net_chip(rst_gpio);
ret = smc911x_initialize(id, base_addr);
if (ret > 0)
return ret;
printf("Failed initializing SMC911x! ");
return 0;
}
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