92 lines
2.0 KiB
C
92 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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#include <common.h>
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#include <linux/bitops.h>
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#include <phy.h>
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#define MIIM_JL11X1_PAGE_SELECT 0x1f
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static int jl11x1_phy_extread(struct phy_device *phydev, int addr,
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int devaddr, int regnum)
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{
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int oldpage = phy_read(phydev, MDIO_DEVAD_NONE,
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MIIM_JL11X1_PAGE_SELECT);
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int val;
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phy_write(phydev, MDIO_DEVAD_NONE, MIIM_JL11X1_PAGE_SELECT, devaddr);
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val = phy_read(phydev, MDIO_DEVAD_NONE, regnum);
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phy_write(phydev, MDIO_DEVAD_NONE, MIIM_JL11X1_PAGE_SELECT, oldpage);
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return val;
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}
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static int jl11x1_phy_extwrite(struct phy_device *phydev, int addr,
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int devaddr, int regnum, u16 val)
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{
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int oldpage = phy_read(phydev, MDIO_DEVAD_NONE,
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MIIM_JL11X1_PAGE_SELECT);
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phy_write(phydev, MDIO_DEVAD_NONE, MIIM_JL11X1_PAGE_SELECT, devaddr);
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phy_write(phydev, MDIO_DEVAD_NONE, regnum, val);
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phy_write(phydev, MDIO_DEVAD_NONE, MIIM_JL11X1_PAGE_SELECT, oldpage);
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return 0;
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}
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static int jl11x1_config(struct phy_device *phydev)
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{
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/* Set green LED for Link, yellow LED for Active */
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phydev->drv->writeext(phydev, 0, 7, 19, 0x00);
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genphy_config_aneg(phydev);
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return 0;
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}
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int jl11x1_startup(struct phy_device *phydev)
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{
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int ret;
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ret = genphy_update_link(phydev);
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if (ret)
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return ret;
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ret = genphy_parse_link(phydev);
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if (phydev->speed == SPEED_100) {
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unsigned int reg;
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reg = phydev->drv->readext(phydev, 0, 24, 24);
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reg &= ~(0x7 << 10);
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reg |= (0x5 << 10);
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phydev->drv->writeext(phydev, 0, 24, 24, reg);
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// set page 7 reg 16 tx 3
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reg = phydev->drv->readext(phydev, 0, 7, 16);
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reg &= ~(0xf << 8);
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reg |= (0x3 << 8);
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phydev->drv->writeext(phydev, 0, 7, 16, reg);
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}
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return ret;
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}
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/* Support for JL11x1 PHY */
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static struct phy_driver JL11x1_driver = {
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.name = "JLSemi JL11x1",
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.uid = 0x937c4024,
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.mask = 0xffffffff,
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.features = PHY_BASIC_FEATURES,
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.config = &jl11x1_config,
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.startup = &jl11x1_startup,
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.shutdown = &genphy_shutdown,
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.readext = &jl11x1_phy_extread,
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.writeext = &jl11x1_phy_extwrite,
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};
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int phy_jlsemi_init(void)
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{
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phy_register(&JL11x1_driver);
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return 0;
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}
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