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https://github.com/brain-hackers/u-boot-brain
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55c7a765f6
Add support for the Terasic DE0-Nano/Atlas-SoC Kit, which is a CycloneV based board. The board can boot from SD/MMC. Ethernet is also supported. Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
73 lines
1.4 KiB
C
73 lines
1.4 KiB
C
/*
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* Copyright (C) 2012 Altera Corporation <www.altera.com>
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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 <micrel.h>
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#include <netdev.h>
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#include <phy.h>
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DECLARE_GLOBAL_DATA_PTR;
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void s_init(void) {}
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/*
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* Miscellaneous platform dependent initialisations
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*/
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int board_init(void)
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{
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/* Address of boot parameters for ATAG (if ATAG is used) */
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gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
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return 0;
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}
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/*
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* PHY configuration
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*/
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#ifdef CONFIG_PHY_MICREL_KSZ9031
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int board_phy_config(struct phy_device *phydev)
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{
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int ret;
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/*
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* These skew settings for the KSZ9021 ethernet phy is required for ethernet
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* to work reliably on most flavors of cyclone5 boards.
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*/
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ret = ksz9031_phy_extended_write(phydev, 0x2,
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MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
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MII_KSZ9031_MOD_DATA_NO_POST_INC,
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0x70);
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if (ret)
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return ret;
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ret = ksz9031_phy_extended_write(phydev, 0x2,
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MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
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MII_KSZ9031_MOD_DATA_NO_POST_INC,
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0x7777);
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if (ret)
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return ret;
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ret = ksz9031_phy_extended_write(phydev, 0x2,
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MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
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MII_KSZ9031_MOD_DATA_NO_POST_INC,
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0);
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if (ret)
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return ret;
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ret = ksz9031_phy_extended_write(phydev, 0x2,
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MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
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MII_KSZ9031_MOD_DATA_NO_POST_INC,
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0x03FC);
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if (ret)
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return ret;
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if (phydev->drv->config)
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return phydev->drv->config(phydev);
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return 0;
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}
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#endif
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