diff options
Diffstat (limited to 'qemu/roms/u-boot/drivers/net/smc911x.c')
| -rw-r--r-- | qemu/roms/u-boot/drivers/net/smc911x.c | 282 |
1 files changed, 0 insertions, 282 deletions
diff --git a/qemu/roms/u-boot/drivers/net/smc911x.c b/qemu/roms/u-boot/drivers/net/smc911x.c deleted file mode 100644 index b097c1a56..000000000 --- a/qemu/roms/u-boot/drivers/net/smc911x.c +++ /dev/null @@ -1,282 +0,0 @@ -/* - * SMSC LAN9[12]1[567] Network driver - * - * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <command.h> -#include <malloc.h> -#include <net.h> -#include <miiphy.h> - -#include "smc911x.h" - -u32 pkt_data_pull(struct eth_device *dev, u32 addr) \ - __attribute__ ((weak, alias ("smc911x_reg_read"))); -void pkt_data_push(struct eth_device *dev, u32 addr, u32 val) \ - __attribute__ ((weak, alias ("smc911x_reg_write"))); - -static void smc911x_handle_mac_address(struct eth_device *dev) -{ - unsigned long addrh, addrl; - uchar *m = dev->enetaddr; - - addrl = m[0] | (m[1] << 8) | (m[2] << 16) | (m[3] << 24); - addrh = m[4] | (m[5] << 8); - smc911x_set_mac_csr(dev, ADDRL, addrl); - smc911x_set_mac_csr(dev, ADDRH, addrh); - - printf(DRIVERNAME ": MAC %pM\n", m); -} - -static int smc911x_eth_phy_read(struct eth_device *dev, - u8 phy, u8 reg, u16 *val) -{ - while (smc911x_get_mac_csr(dev, MII_ACC) & MII_ACC_MII_BUSY) - ; - - smc911x_set_mac_csr(dev, MII_ACC, phy << 11 | reg << 6 | - MII_ACC_MII_BUSY); - - while (smc911x_get_mac_csr(dev, MII_ACC) & MII_ACC_MII_BUSY) - ; - - *val = smc911x_get_mac_csr(dev, MII_DATA); - - return 0; -} - -static int smc911x_eth_phy_write(struct eth_device *dev, - u8 phy, u8 reg, u16 val) -{ - while (smc911x_get_mac_csr(dev, MII_ACC) & MII_ACC_MII_BUSY) - ; - - smc911x_set_mac_csr(dev, MII_DATA, val); - smc911x_set_mac_csr(dev, MII_ACC, - phy << 11 | reg << 6 | MII_ACC_MII_BUSY | MII_ACC_MII_WRITE); - - while (smc911x_get_mac_csr(dev, MII_ACC) & MII_ACC_MII_BUSY) - ; - return 0; -} - -static int smc911x_phy_reset(struct eth_device *dev) -{ - u32 reg; - - reg = smc911x_reg_read(dev, PMT_CTRL); - reg &= ~0xfffff030; - reg |= PMT_CTRL_PHY_RST; - smc911x_reg_write(dev, PMT_CTRL, reg); - - mdelay(100); - - return 0; -} - -static void smc911x_phy_configure(struct eth_device *dev) -{ - int timeout; - u16 status; - - smc911x_phy_reset(dev); - - smc911x_eth_phy_write(dev, 1, MII_BMCR, BMCR_RESET); - mdelay(1); - smc911x_eth_phy_write(dev, 1, MII_ADVERTISE, 0x01e1); - smc911x_eth_phy_write(dev, 1, MII_BMCR, BMCR_ANENABLE | - BMCR_ANRESTART); - - timeout = 5000; - do { - mdelay(1); - if ((timeout--) == 0) - goto err_out; - - if (smc911x_eth_phy_read(dev, 1, MII_BMSR, &status) != 0) - goto err_out; - } while (!(status & BMSR_LSTATUS)); - - printf(DRIVERNAME ": phy initialized\n"); - - return; - -err_out: - printf(DRIVERNAME ": autonegotiation timed out\n"); -} - -static void smc911x_enable(struct eth_device *dev) -{ - /* Enable TX */ - smc911x_reg_write(dev, HW_CFG, 8 << 16 | HW_CFG_SF); - - smc911x_reg_write(dev, GPT_CFG, GPT_CFG_TIMER_EN | 10000); - - smc911x_reg_write(dev, TX_CFG, TX_CFG_TX_ON); - - /* no padding to start of packets */ - smc911x_reg_write(dev, RX_CFG, 0); - - smc911x_set_mac_csr(dev, MAC_CR, MAC_CR_TXEN | MAC_CR_RXEN | - MAC_CR_HBDIS); - -} - -static int smc911x_init(struct eth_device *dev, bd_t * bd) -{ - struct chip_id *id = dev->priv; - - printf(DRIVERNAME ": detected %s controller\n", id->name); - - smc911x_reset(dev); - - /* Configure the PHY, initialize the link state */ - smc911x_phy_configure(dev); - - smc911x_handle_mac_address(dev); - - /* Turn on Tx + Rx */ - smc911x_enable(dev); - - return 0; -} - -static int smc911x_send(struct eth_device *dev, void *packet, int length) -{ - u32 *data = (u32*)packet; - u32 tmplen; - u32 status; - - smc911x_reg_write(dev, TX_DATA_FIFO, TX_CMD_A_INT_FIRST_SEG | - TX_CMD_A_INT_LAST_SEG | length); - smc911x_reg_write(dev, TX_DATA_FIFO, length); - - tmplen = (length + 3) / 4; - - while (tmplen--) - pkt_data_push(dev, TX_DATA_FIFO, *data++); - - /* wait for transmission */ - while (!((smc911x_reg_read(dev, TX_FIFO_INF) & - TX_FIFO_INF_TSUSED) >> 16)); - - /* get status. Ignore 'no carrier' error, it has no meaning for - * full duplex operation - */ - status = smc911x_reg_read(dev, TX_STATUS_FIFO) & - (TX_STS_LOC | TX_STS_LATE_COLL | TX_STS_MANY_COLL | - TX_STS_MANY_DEFER | TX_STS_UNDERRUN); - - if (!status) - return 0; - - printf(DRIVERNAME ": failed to send packet: %s%s%s%s%s\n", - status & TX_STS_LOC ? "TX_STS_LOC " : "", - status & TX_STS_LATE_COLL ? "TX_STS_LATE_COLL " : "", - status & TX_STS_MANY_COLL ? "TX_STS_MANY_COLL " : "", - status & TX_STS_MANY_DEFER ? "TX_STS_MANY_DEFER " : "", - status & TX_STS_UNDERRUN ? "TX_STS_UNDERRUN" : ""); - - return -1; -} - -static void smc911x_halt(struct eth_device *dev) -{ - smc911x_reset(dev); -} - -static int smc911x_rx(struct eth_device *dev) -{ - u32 *data = (u32 *)NetRxPackets[0]; - u32 pktlen, tmplen; - u32 status; - - if ((smc911x_reg_read(dev, RX_FIFO_INF) & RX_FIFO_INF_RXSUSED) >> 16) { - status = smc911x_reg_read(dev, RX_STATUS_FIFO); - pktlen = (status & RX_STS_PKT_LEN) >> 16; - - smc911x_reg_write(dev, RX_CFG, 0); - - tmplen = (pktlen + 3) / 4; - while (tmplen--) - *data++ = pkt_data_pull(dev, RX_DATA_FIFO); - - if (status & RX_STS_ES) - printf(DRIVERNAME - ": dropped bad packet. Status: 0x%08x\n", - status); - else - NetReceive(NetRxPackets[0], pktlen); - } - - return 0; -} - -#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) -/* wrapper for smc911x_eth_phy_read */ -static int smc911x_miiphy_read(const char *devname, u8 phy, u8 reg, u16 *val) -{ - struct eth_device *dev = eth_get_dev_by_name(devname); - if (dev) - return smc911x_eth_phy_read(dev, phy, reg, val); - return -1; -} -/* wrapper for smc911x_eth_phy_write */ -static int smc911x_miiphy_write(const char *devname, u8 phy, u8 reg, u16 val) -{ - struct eth_device *dev = eth_get_dev_by_name(devname); - if (dev) - return smc911x_eth_phy_write(dev, phy, reg, val); - return -1; -} -#endif - -int smc911x_initialize(u8 dev_num, int base_addr) -{ - unsigned long addrl, addrh; - struct eth_device *dev; - - dev = malloc(sizeof(*dev)); - if (!dev) { - return -1; - } - memset(dev, 0, sizeof(*dev)); - - dev->iobase = base_addr; - - /* Try to detect chip. Will fail if not present. */ - if (smc911x_detect_chip(dev)) { - free(dev); - return 0; - } - - addrh = smc911x_get_mac_csr(dev, ADDRH); - addrl = smc911x_get_mac_csr(dev, ADDRL); - if (!(addrl == 0xffffffff && addrh == 0x0000ffff)) { - /* address is obtained from optional eeprom */ - dev->enetaddr[0] = addrl; - dev->enetaddr[1] = addrl >> 8; - dev->enetaddr[2] = addrl >> 16; - dev->enetaddr[3] = addrl >> 24; - dev->enetaddr[4] = addrh; - dev->enetaddr[5] = addrh >> 8; - } - - dev->init = smc911x_init; - dev->halt = smc911x_halt; - dev->send = smc911x_send; - dev->recv = smc911x_rx; - sprintf(dev->name, "%s-%hu", DRIVERNAME, dev_num); - - eth_register(dev); - -#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) - miiphy_register(dev->name, smc911x_miiphy_read, smc911x_miiphy_write); -#endif - - return 1; -} |