当在U-boot 中停止时、PHY 通过 BMCR 寄存器进行软复位。 PHY 将成功地自动协商、 ETH 接口工作正常。 探测RX_CLK 和 TX_CLK 引脚会显示有效时钟。 当系统引导时、MAC 驱动程序会发现 PHY 并调用驱动程序复位功能。 TI 驱动程序使用 PHYRCR (0x1f)寄存器进行硬复位、并验证 ...
46 + #define BMCR_SPEED100 0x2000 /* Select 100Mbps */ 47 + #define BMCR_LOOPBACK 0x4000 /* TXD loopback bits */ 48 + #define BMCR_RESET 0x8000 /* Reset to default state */ 49 + #define BMCR_SPEED10 0x0000 /* Select 10Mbps */ 47 50 48 51 /* Basic mode status ...
{ MII_BMCR, reg_0_desc_tbl, ARRAY_SIZE(reg_0_desc_tbl), "PHY control register" }, { MII_BMSR, reg_1_desc_tbl, ARRAY_SIZE(reg_1_desc_tbl), "PHY status register" }, { MII_PHYSID1, reg_2_desc_tbl, ARRAY_SIZE(reg_2_desc_tbl), "PHY ID 1 register" }, { MII_PHYSID2...
/* Wait for hardware reset to end. */ for( x = 0; x < 100; x++ ){[INDENT] vTaskDelay( emacSHORT_DELAY * 5 ); // FreeRTOS delay us = prvReadPHY( PHY_REG_BMCR, &lDummy ); if( !( us & MCFG_RES_MII ) ){[INDENT] /* Reset complete */ break;[/INDENT]}[/INDENT]}[...
bmcr |= MII_BMCR_100MBIT; if (fixed_speed & (MII_AN_100BASETX_FD|MII_AN_10BASET_FD)) bmcr |= MII_BMCR_DUPLEX; mdio_write(skfd, MII_BMCR, bmcr); } if (!opt_restart && !opt_reset && !fixed_speed && !nway_advertise)
prvWritePHY( PHY_REG_BMCR, MCFG_RES_MII ); /* Wait for hardware reset to end. */ for( x = 0; x < 100; x++ ){[INDENT] vTaskDelay( emacSHORT_DELAY * 5 ); // FreeRTOS delay us = prvReadPHY( PHY_REG_BMCR, &lDummy ); if( !( us & MCFG_RES_MII ) ){[INDENT] /* ...
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