Extract the SMC911x initialization code to a common location where it can be reused by other compulab omap3 based boards. Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Reviewed-by: Tom Rini <trini@ti.com>master
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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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* SPDX-License-Identifier: GPL-2.0+ |
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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 <asm/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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