mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-06 11:16:15 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
144 lines
3.0 KiB
C
144 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Xilinx PCS/PMA Core phy driver
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*
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* Copyright (C) 2015 - 2016 Xilinx, Inc.
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*/
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#include <config.h>
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#include <common.h>
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#include <phy.h>
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#include <dm.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define MII_PHY_STATUS_SPD_MASK 0x0C00
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#define MII_PHY_STATUS_FULLDUPLEX 0x1000
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#define MII_PHY_STATUS_1000 0x0800
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#define MII_PHY_STATUS_100 0x0400
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#define XPCSPMA_PHY_CTRL_ISOLATE_DISABLE 0xFBFF
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/* Mask used for ID comparisons */
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#define XILINX_PHY_ID_MASK 0xfffffff0
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/* Known PHY IDs */
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#define XILINX_PHY_ID 0x01740c00
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/* struct phy_device dev_flags definitions */
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#define XAE_PHY_TYPE_MII 0
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#define XAE_PHY_TYPE_GMII 1
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#define XAE_PHY_TYPE_RGMII_1_3 2
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#define XAE_PHY_TYPE_RGMII_2_0 3
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#define XAE_PHY_TYPE_SGMII 4
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#define XAE_PHY_TYPE_1000BASE_X 5
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static int xilinxphy_startup(struct phy_device *phydev)
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{
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int err;
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int status = 0;
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debug("%s\n", __func__);
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/* Update the link, but return if there
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* was an error
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*/
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err = genphy_update_link(phydev);
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if (err)
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return err;
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if (AUTONEG_ENABLE == phydev->autoneg) {
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status = phy_read(phydev, MDIO_DEVAD_NONE, MII_LPA);
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status = status & MII_PHY_STATUS_SPD_MASK;
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if (status & MII_PHY_STATUS_FULLDUPLEX)
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phydev->duplex = DUPLEX_FULL;
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else
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phydev->duplex = DUPLEX_HALF;
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switch (status) {
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case MII_PHY_STATUS_1000:
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phydev->speed = SPEED_1000;
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break;
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case MII_PHY_STATUS_100:
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phydev->speed = SPEED_100;
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break;
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default:
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phydev->speed = SPEED_10;
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break;
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}
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} else {
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int bmcr = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
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if (bmcr < 0)
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return bmcr;
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if (bmcr & BMCR_FULLDPLX)
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phydev->duplex = DUPLEX_FULL;
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else
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phydev->duplex = DUPLEX_HALF;
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if (bmcr & BMCR_SPEED1000)
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phydev->speed = SPEED_1000;
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else if (bmcr & BMCR_SPEED100)
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phydev->speed = SPEED_100;
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else
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phydev->speed = SPEED_10;
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}
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/*
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* For 1000BASE-X Phy Mode the speed/duplex will always be
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* 1000Mbps/fullduplex
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*/
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if (phydev->flags == XAE_PHY_TYPE_1000BASE_X) {
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phydev->duplex = DUPLEX_FULL;
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phydev->speed = SPEED_1000;
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}
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return 0;
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}
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static int xilinxphy_of_init(struct phy_device *phydev)
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{
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u32 phytype;
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debug("%s\n", __func__);
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phytype = fdtdec_get_int(gd->fdt_blob, dev_of_offset(phydev->dev),
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"xlnx,phy-type", -1);
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if (phytype == XAE_PHY_TYPE_1000BASE_X)
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phydev->flags |= XAE_PHY_TYPE_1000BASE_X;
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return 0;
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}
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static int xilinxphy_config(struct phy_device *phydev)
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{
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int temp;
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debug("%s\n", __func__);
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xilinxphy_of_init(phydev);
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temp = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR);
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temp &= XPCSPMA_PHY_CTRL_ISOLATE_DISABLE;
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phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, temp);
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return 0;
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}
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static struct phy_driver xilinxphy_driver = {
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.uid = XILINX_PHY_ID,
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.mask = XILINX_PHY_ID_MASK,
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.name = "Xilinx PCS/PMA PHY",
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.features = PHY_GBIT_FEATURES,
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.config = &xilinxphy_config,
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.startup = &xilinxphy_startup,
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.shutdown = &genphy_shutdown,
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};
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int phy_xilinx_init(void)
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{
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debug("%s\n", __func__);
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phy_register(&xilinxphy_driver);
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return 0;
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}
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