[astro] 0.20210119.2.1338 u-boot source
GitOrigin-RevId: 9768d963ff46648bb8b183d8e29a7abc19f68920
Change-Id: I7546ab102cb3ee77ef262b760f9be1b9cf21536a
Reviewed-on: https://turquoise-internal-review.googlesource.com/c/third_party/u-boot/+/372314
Reviewed-by: Varun Sharma <vars@google.com>
diff --git a/drivers/qe/uec.c b/drivers/qe/uec.c
new file mode 100644
index 0000000..c91f084
--- /dev/null
+++ b/drivers/qe/uec.c
@@ -0,0 +1,1421 @@
+/*
+ * Copyright (C) 2006-2011 Freescale Semiconductor, Inc.
+ *
+ * Dave Liu <daveliu@freescale.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include "common.h"
+#include "net.h"
+#include "malloc.h"
+#include "asm/errno.h"
+#include "asm/io.h"
+#include "linux/immap_qe.h"
+#include "qe.h"
+#include "uccf.h"
+#include "uec.h"
+#include "uec_phy.h"
+#include "miiphy.h"
+#include <phy.h>
+
+/* Default UTBIPAR SMI address */
+#ifndef CONFIG_UTBIPAR_INIT_TBIPA
+#define CONFIG_UTBIPAR_INIT_TBIPA 0x1F
+#endif
+
+static uec_info_t uec_info[] = {
+#ifdef CONFIG_UEC_ETH1
+ STD_UEC_INFO(1), /* UEC1 */
+#endif
+#ifdef CONFIG_UEC_ETH2
+ STD_UEC_INFO(2), /* UEC2 */
+#endif
+#ifdef CONFIG_UEC_ETH3
+ STD_UEC_INFO(3), /* UEC3 */
+#endif
+#ifdef CONFIG_UEC_ETH4
+ STD_UEC_INFO(4), /* UEC4 */
+#endif
+#ifdef CONFIG_UEC_ETH5
+ STD_UEC_INFO(5), /* UEC5 */
+#endif
+#ifdef CONFIG_UEC_ETH6
+ STD_UEC_INFO(6), /* UEC6 */
+#endif
+#ifdef CONFIG_UEC_ETH7
+ STD_UEC_INFO(7), /* UEC7 */
+#endif
+#ifdef CONFIG_UEC_ETH8
+ STD_UEC_INFO(8), /* UEC8 */
+#endif
+};
+
+#define MAXCONTROLLERS (8)
+
+static struct eth_device *devlist[MAXCONTROLLERS];
+
+static int uec_mac_enable(uec_private_t *uec, comm_dir_e mode)
+{
+ uec_t *uec_regs;
+ u32 maccfg1;
+
+ if (!uec) {
+ printf("%s: uec not initial\n", __FUNCTION__);
+ return -EINVAL;
+ }
+ uec_regs = uec->uec_regs;
+
+ maccfg1 = in_be32(&uec_regs->maccfg1);
+
+ if (mode & COMM_DIR_TX) {
+ maccfg1 |= MACCFG1_ENABLE_TX;
+ out_be32(&uec_regs->maccfg1, maccfg1);
+ uec->mac_tx_enabled = 1;
+ }
+
+ if (mode & COMM_DIR_RX) {
+ maccfg1 |= MACCFG1_ENABLE_RX;
+ out_be32(&uec_regs->maccfg1, maccfg1);
+ uec->mac_rx_enabled = 1;
+ }
+
+ return 0;
+}
+
+static int uec_mac_disable(uec_private_t *uec, comm_dir_e mode)
+{
+ uec_t *uec_regs;
+ u32 maccfg1;
+
+ if (!uec) {
+ printf("%s: uec not initial\n", __FUNCTION__);
+ return -EINVAL;
+ }
+ uec_regs = uec->uec_regs;
+
+ maccfg1 = in_be32(&uec_regs->maccfg1);
+
+ if (mode & COMM_DIR_TX) {
+ maccfg1 &= ~MACCFG1_ENABLE_TX;
+ out_be32(&uec_regs->maccfg1, maccfg1);
+ uec->mac_tx_enabled = 0;
+ }
+
+ if (mode & COMM_DIR_RX) {
+ maccfg1 &= ~MACCFG1_ENABLE_RX;
+ out_be32(&uec_regs->maccfg1, maccfg1);
+ uec->mac_rx_enabled = 0;
+ }
+
+ return 0;
+}
+
+static int uec_graceful_stop_tx(uec_private_t *uec)
+{
+ ucc_fast_t *uf_regs;
+ u32 cecr_subblock;
+ u32 ucce;
+
+ if (!uec || !uec->uccf) {
+ printf("%s: No handle passed.\n", __FUNCTION__);
+ return -EINVAL;
+ }
+
+ uf_regs = uec->uccf->uf_regs;
+
+ /* Clear the grace stop event */
+ out_be32(&uf_regs->ucce, UCCE_GRA);
+
+ /* Issue host command */
+ cecr_subblock =
+ ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
+ qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
+ (u8)QE_CR_PROTOCOL_ETHERNET, 0);
+
+ /* Wait for command to complete */
+ do {
+ ucce = in_be32(&uf_regs->ucce);
+ } while (! (ucce & UCCE_GRA));
+
+ uec->grace_stopped_tx = 1;
+
+ return 0;
+}
+
+static int uec_graceful_stop_rx(uec_private_t *uec)
+{
+ u32 cecr_subblock;
+ u8 ack;
+
+ if (!uec) {
+ printf("%s: No handle passed.\n", __FUNCTION__);
+ return -EINVAL;
+ }
+
+ if (!uec->p_rx_glbl_pram) {
+ printf("%s: No init rx global parameter\n", __FUNCTION__);
+ return -EINVAL;
+ }
+
+ /* Clear acknowledge bit */
+ ack = uec->p_rx_glbl_pram->rxgstpack;
+ ack &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
+ uec->p_rx_glbl_pram->rxgstpack = ack;
+
+ /* Keep issuing cmd and checking ack bit until it is asserted */
+ do {
+ /* Issue host command */
+ cecr_subblock =
+ ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
+ qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
+ (u8)QE_CR_PROTOCOL_ETHERNET, 0);
+ ack = uec->p_rx_glbl_pram->rxgstpack;
+ } while (! (ack & GRACEFUL_STOP_ACKNOWLEDGE_RX ));
+
+ uec->grace_stopped_rx = 1;
+
+ return 0;
+}
+
+static int uec_restart_tx(uec_private_t *uec)
+{
+ u32 cecr_subblock;
+
+ if (!uec || !uec->uec_info) {
+ printf("%s: No handle passed.\n", __FUNCTION__);
+ return -EINVAL;
+ }
+
+ cecr_subblock =
+ ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
+ qe_issue_cmd(QE_RESTART_TX, cecr_subblock,
+ (u8)QE_CR_PROTOCOL_ETHERNET, 0);
+
+ uec->grace_stopped_tx = 0;
+
+ return 0;
+}
+
+static int uec_restart_rx(uec_private_t *uec)
+{
+ u32 cecr_subblock;
+
+ if (!uec || !uec->uec_info) {
+ printf("%s: No handle passed.\n", __FUNCTION__);
+ return -EINVAL;
+ }
+
+ cecr_subblock =
+ ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
+ qe_issue_cmd(QE_RESTART_RX, cecr_subblock,
+ (u8)QE_CR_PROTOCOL_ETHERNET, 0);
+
+ uec->grace_stopped_rx = 0;
+
+ return 0;
+}
+
+static int uec_open(uec_private_t *uec, comm_dir_e mode)
+{
+ ucc_fast_private_t *uccf;
+
+ if (!uec || !uec->uccf) {
+ printf("%s: No handle passed.\n", __FUNCTION__);
+ return -EINVAL;
+ }
+ uccf = uec->uccf;
+
+ /* check if the UCC number is in range. */
+ if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
+ printf("%s: ucc_num out of range.\n", __FUNCTION__);
+ return -EINVAL;
+ }
+
+ /* Enable MAC */
+ uec_mac_enable(uec, mode);
+
+ /* Enable UCC fast */
+ ucc_fast_enable(uccf, mode);
+
+ /* RISC microcode start */
+ if ((mode & COMM_DIR_TX) && uec->grace_stopped_tx) {
+ uec_restart_tx(uec);
+ }
+ if ((mode & COMM_DIR_RX) && uec->grace_stopped_rx) {
+ uec_restart_rx(uec);
+ }
+
+ return 0;
+}
+
+static int uec_stop(uec_private_t *uec, comm_dir_e mode)
+{
+ if (!uec || !uec->uccf) {
+ printf("%s: No handle passed.\n", __FUNCTION__);
+ return -EINVAL;
+ }
+
+ /* check if the UCC number is in range. */
+ if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
+ printf("%s: ucc_num out of range.\n", __FUNCTION__);
+ return -EINVAL;
+ }
+ /* Stop any transmissions */
+ if ((mode & COMM_DIR_TX) && !uec->grace_stopped_tx) {
+ uec_graceful_stop_tx(uec);
+ }
+ /* Stop any receptions */
+ if ((mode & COMM_DIR_RX) && !uec->grace_stopped_rx) {
+ uec_graceful_stop_rx(uec);
+ }
+
+ /* Disable the UCC fast */
+ ucc_fast_disable(uec->uccf, mode);
+
+ /* Disable the MAC */
+ uec_mac_disable(uec, mode);
+
+ return 0;
+}
+
+static int uec_set_mac_duplex(uec_private_t *uec, int duplex)
+{
+ uec_t *uec_regs;
+ u32 maccfg2;
+
+ if (!uec) {
+ printf("%s: uec not initial\n", __FUNCTION__);
+ return -EINVAL;
+ }
+ uec_regs = uec->uec_regs;
+
+ if (duplex == DUPLEX_HALF) {
+ maccfg2 = in_be32(&uec_regs->maccfg2);
+ maccfg2 &= ~MACCFG2_FDX;
+ out_be32(&uec_regs->maccfg2, maccfg2);
+ }
+
+ if (duplex == DUPLEX_FULL) {
+ maccfg2 = in_be32(&uec_regs->maccfg2);
+ maccfg2 |= MACCFG2_FDX;
+ out_be32(&uec_regs->maccfg2, maccfg2);
+ }
+
+ return 0;
+}
+
+static int uec_set_mac_if_mode(uec_private_t *uec,
+ phy_interface_t if_mode, int speed)
+{
+ phy_interface_t enet_if_mode;
+ uec_t *uec_regs;
+ u32 upsmr;
+ u32 maccfg2;
+
+ if (!uec) {
+ printf("%s: uec not initial\n", __FUNCTION__);
+ return -EINVAL;
+ }
+
+ uec_regs = uec->uec_regs;
+ enet_if_mode = if_mode;
+
+ maccfg2 = in_be32(&uec_regs->maccfg2);
+ maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
+
+ upsmr = in_be32(&uec->uccf->uf_regs->upsmr);
+ upsmr &= ~(UPSMR_RPM | UPSMR_TBIM | UPSMR_R10M | UPSMR_RMM);
+
+ switch (speed) {
+ case SPEED_10:
+ maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
+ switch (enet_if_mode) {
+ case PHY_INTERFACE_MODE_MII:
+ break;
+ case PHY_INTERFACE_MODE_RGMII:
+ upsmr |= (UPSMR_RPM | UPSMR_R10M);
+ break;
+ case PHY_INTERFACE_MODE_RMII:
+ upsmr |= (UPSMR_R10M | UPSMR_RMM);
+ break;
+ default:
+ return -EINVAL;
+ break;
+ }
+ break;
+ case SPEED_100:
+ maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
+ switch (enet_if_mode) {
+ case PHY_INTERFACE_MODE_MII:
+ break;
+ case PHY_INTERFACE_MODE_RGMII:
+ upsmr |= UPSMR_RPM;
+ break;
+ case PHY_INTERFACE_MODE_RMII:
+ upsmr |= UPSMR_RMM;
+ break;
+ default:
+ return -EINVAL;
+ break;
+ }
+ break;
+ case SPEED_1000:
+ maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
+ switch (enet_if_mode) {
+ case PHY_INTERFACE_MODE_GMII:
+ break;
+ case PHY_INTERFACE_MODE_TBI:
+ upsmr |= UPSMR_TBIM;
+ break;
+ case PHY_INTERFACE_MODE_RTBI:
+ upsmr |= (UPSMR_RPM | UPSMR_TBIM);
+ break;
+ case PHY_INTERFACE_MODE_RGMII_RXID:
+ case PHY_INTERFACE_MODE_RGMII_TXID:
+ case PHY_INTERFACE_MODE_RGMII_ID:
+ case PHY_INTERFACE_MODE_RGMII:
+ upsmr |= UPSMR_RPM;
+ break;
+ case PHY_INTERFACE_MODE_SGMII:
+ upsmr |= UPSMR_SGMM;
+ break;
+ default:
+ return -EINVAL;
+ break;
+ }
+ break;
+ default:
+ return -EINVAL;
+ break;
+ }
+
+ out_be32(&uec_regs->maccfg2, maccfg2);
+ out_be32(&uec->uccf->uf_regs->upsmr, upsmr);
+
+ return 0;
+}
+
+static int init_mii_management_configuration(uec_mii_t *uec_mii_regs)
+{
+ uint timeout = 0x1000;
+ u32 miimcfg = 0;
+
+ miimcfg = in_be32(&uec_mii_regs->miimcfg);
+ miimcfg |= MIIMCFG_MNGMNT_CLC_DIV_INIT_VALUE;
+ out_be32(&uec_mii_regs->miimcfg, miimcfg);
+
+ /* Wait until the bus is free */
+ while ((in_be32(&uec_mii_regs->miimcfg) & MIIMIND_BUSY) && timeout--);
+ if (timeout <= 0) {
+ printf("%s: The MII Bus is stuck!", __FUNCTION__);
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static int init_phy(struct eth_device *dev)
+{
+ uec_private_t *uec;
+ uec_mii_t *umii_regs;
+ struct uec_mii_info *mii_info;
+ struct phy_info *curphy;
+ int err;
+
+ uec = (uec_private_t *)dev->priv;
+ umii_regs = uec->uec_mii_regs;
+
+ uec->oldlink = 0;
+ uec->oldspeed = 0;
+ uec->oldduplex = -1;
+
+ mii_info = malloc(sizeof(*mii_info));
+ if (!mii_info) {
+ printf("%s: Could not allocate mii_info", dev->name);
+ return -ENOMEM;
+ }
+ memset(mii_info, 0, sizeof(*mii_info));
+
+ if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
+ mii_info->speed = SPEED_1000;
+ } else {
+ mii_info->speed = SPEED_100;
+ }
+
+ mii_info->duplex = DUPLEX_FULL;
+ mii_info->pause = 0;
+ mii_info->link = 1;
+
+ mii_info->advertising = (ADVERTISED_10baseT_Half |
+ ADVERTISED_10baseT_Full |
+ ADVERTISED_100baseT_Half |
+ ADVERTISED_100baseT_Full |
+ ADVERTISED_1000baseT_Full);
+ mii_info->autoneg = 1;
+ mii_info->mii_id = uec->uec_info->phy_address;
+ mii_info->dev = dev;
+
+ mii_info->mdio_read = &uec_read_phy_reg;
+ mii_info->mdio_write = &uec_write_phy_reg;
+
+ uec->mii_info = mii_info;
+
+ qe_set_mii_clk_src(uec->uec_info->uf_info.ucc_num);
+
+ if (init_mii_management_configuration(umii_regs)) {
+ printf("%s: The MII Bus is stuck!", dev->name);
+ err = -1;
+ goto bus_fail;
+ }
+
+ /* get info for this PHY */
+ curphy = uec_get_phy_info(uec->mii_info);
+ if (!curphy) {
+ printf("%s: No PHY found", dev->name);
+ err = -1;
+ goto no_phy;
+ }
+
+ mii_info->phyinfo = curphy;
+
+ /* Run the commands which initialize the PHY */
+ if (curphy->init) {
+ err = curphy->init(uec->mii_info);
+ if (err)
+ goto phy_init_fail;
+ }
+
+ return 0;
+
+phy_init_fail:
+no_phy:
+bus_fail:
+ free(mii_info);
+ return err;
+}
+
+static void adjust_link(struct eth_device *dev)
+{
+ uec_private_t *uec = (uec_private_t *)dev->priv;
+ struct uec_mii_info *mii_info = uec->mii_info;
+
+ extern void change_phy_interface_mode(struct eth_device *dev,
+ phy_interface_t mode, int speed);
+
+ if (mii_info->link) {
+ /* Now we make sure that we can be in full duplex mode.
+ * If not, we operate in half-duplex mode. */
+ if (mii_info->duplex != uec->oldduplex) {
+ if (!(mii_info->duplex)) {
+ uec_set_mac_duplex(uec, DUPLEX_HALF);
+ printf("%s: Half Duplex\n", dev->name);
+ } else {
+ uec_set_mac_duplex(uec, DUPLEX_FULL);
+ printf("%s: Full Duplex\n", dev->name);
+ }
+ uec->oldduplex = mii_info->duplex;
+ }
+
+ if (mii_info->speed != uec->oldspeed) {
+ phy_interface_t mode =
+ uec->uec_info->enet_interface_type;
+ if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
+ switch (mii_info->speed) {
+ case SPEED_1000:
+ break;
+ case SPEED_100:
+ printf ("switching to rgmii 100\n");
+ mode = PHY_INTERFACE_MODE_RGMII;
+ break;
+ case SPEED_10:
+ printf ("switching to rgmii 10\n");
+ mode = PHY_INTERFACE_MODE_RGMII;
+ break;
+ default:
+ printf("%s: Ack,Speed(%d)is illegal\n",
+ dev->name, mii_info->speed);
+ break;
+ }
+ }
+
+ /* change phy */
+ change_phy_interface_mode(dev, mode, mii_info->speed);
+ /* change the MAC interface mode */
+ uec_set_mac_if_mode(uec, mode, mii_info->speed);
+
+ printf("%s: Speed %dBT\n", dev->name, mii_info->speed);
+ uec->oldspeed = mii_info->speed;
+ }
+
+ if (!uec->oldlink) {
+ printf("%s: Link is up\n", dev->name);
+ uec->oldlink = 1;
+ }
+
+ } else { /* if (mii_info->link) */
+ if (uec->oldlink) {
+ printf("%s: Link is down\n", dev->name);
+ uec->oldlink = 0;
+ uec->oldspeed = 0;
+ uec->oldduplex = -1;
+ }
+ }
+}
+
+static void phy_change(struct eth_device *dev)
+{
+ uec_private_t *uec = (uec_private_t *)dev->priv;
+
+#if defined(CONFIG_P1012) || defined(CONFIG_P1021) || defined(CONFIG_P1025)
+ ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+
+ /* QE9 and QE12 need to be set for enabling QE MII managment signals */
+ setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE9);
+ setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
+#endif
+
+ /* Update the link, speed, duplex */
+ uec->mii_info->phyinfo->read_status(uec->mii_info);
+
+#if defined(CONFIG_P1012) || defined(CONFIG_P1021) || defined(CONFIG_P1025)
+ /*
+ * QE12 is muxed with LBCTL, it needs to be released for enabling
+ * LBCTL signal for LBC usage.
+ */
+ clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
+#endif
+
+ /* Adjust the interface according to speed */
+ adjust_link(dev);
+}
+
+#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
+
+/*
+ * Find a device index from the devlist by name
+ *
+ * Returns:
+ * The index where the device is located, -1 on error
+ */
+static int uec_miiphy_find_dev_by_name(const char *devname)
+{
+ int i;
+
+ for (i = 0; i < MAXCONTROLLERS; i++) {
+ if (strncmp(devname, devlist[i]->name, strlen(devname)) == 0) {
+ break;
+ }
+ }
+
+ /* If device cannot be found, returns -1 */
+ if (i == MAXCONTROLLERS) {
+ debug ("%s: device %s not found in devlist\n", __FUNCTION__, devname);
+ i = -1;
+ }
+
+ return i;
+}
+
+/*
+ * Read a MII PHY register.
+ *
+ * Returns:
+ * 0 on success
+ */
+static int uec_miiphy_read(const char *devname, unsigned char addr,
+ unsigned char reg, unsigned short *value)
+{
+ int devindex = 0;
+
+ if (devname == NULL || value == NULL) {
+ debug("%s: NULL pointer given\n", __FUNCTION__);
+ } else {
+ devindex = uec_miiphy_find_dev_by_name(devname);
+ if (devindex >= 0) {
+ *value = uec_read_phy_reg(devlist[devindex], addr, reg);
+ }
+ }
+ return 0;
+}
+
+/*
+ * Write a MII PHY register.
+ *
+ * Returns:
+ * 0 on success
+ */
+static int uec_miiphy_write(const char *devname, unsigned char addr,
+ unsigned char reg, unsigned short value)
+{
+ int devindex = 0;
+
+ if (devname == NULL) {
+ debug("%s: NULL pointer given\n", __FUNCTION__);
+ } else {
+ devindex = uec_miiphy_find_dev_by_name(devname);
+ if (devindex >= 0) {
+ uec_write_phy_reg(devlist[devindex], addr, reg, value);
+ }
+ }
+ return 0;
+}
+#endif
+
+static int uec_set_mac_address(uec_private_t *uec, u8 *mac_addr)
+{
+ uec_t *uec_regs;
+ u32 mac_addr1;
+ u32 mac_addr2;
+
+ if (!uec) {
+ printf("%s: uec not initial\n", __FUNCTION__);
+ return -EINVAL;
+ }
+
+ uec_regs = uec->uec_regs;
+
+ /* if a station address of 0x12345678ABCD, perform a write to
+ MACSTNADDR1 of 0xCDAB7856,
+ MACSTNADDR2 of 0x34120000 */
+
+ mac_addr1 = (mac_addr[5] << 24) | (mac_addr[4] << 16) | \
+ (mac_addr[3] << 8) | (mac_addr[2]);
+ out_be32(&uec_regs->macstnaddr1, mac_addr1);
+
+ mac_addr2 = ((mac_addr[1] << 24) | (mac_addr[0] << 16)) & 0xffff0000;
+ out_be32(&uec_regs->macstnaddr2, mac_addr2);
+
+ return 0;
+}
+
+static int uec_convert_threads_num(uec_num_of_threads_e threads_num,
+ int *threads_num_ret)
+{
+ int num_threads_numerica;
+
+ switch (threads_num) {
+ case UEC_NUM_OF_THREADS_1:
+ num_threads_numerica = 1;
+ break;
+ case UEC_NUM_OF_THREADS_2:
+ num_threads_numerica = 2;
+ break;
+ case UEC_NUM_OF_THREADS_4:
+ num_threads_numerica = 4;
+ break;
+ case UEC_NUM_OF_THREADS_6:
+ num_threads_numerica = 6;
+ break;
+ case UEC_NUM_OF_THREADS_8:
+ num_threads_numerica = 8;
+ break;
+ default:
+ printf("%s: Bad number of threads value.",
+ __FUNCTION__);
+ return -EINVAL;
+ }
+
+ *threads_num_ret = num_threads_numerica;
+
+ return 0;
+}
+
+static void uec_init_tx_parameter(uec_private_t *uec, int num_threads_tx)
+{
+ uec_info_t *uec_info;
+ u32 end_bd;
+ u8 bmrx = 0;
+ int i;
+
+ uec_info = uec->uec_info;
+
+ /* Alloc global Tx parameter RAM page */
+ uec->tx_glbl_pram_offset = qe_muram_alloc(
+ sizeof(uec_tx_global_pram_t),
+ UEC_TX_GLOBAL_PRAM_ALIGNMENT);
+ uec->p_tx_glbl_pram = (uec_tx_global_pram_t *)
+ qe_muram_addr(uec->tx_glbl_pram_offset);
+
+ /* Zero the global Tx prameter RAM */
+ memset(uec->p_tx_glbl_pram, 0, sizeof(uec_tx_global_pram_t));
+
+ /* Init global Tx parameter RAM */
+
+ /* TEMODER, RMON statistics disable, one Tx queue */
+ out_be16(&uec->p_tx_glbl_pram->temoder, TEMODER_INIT_VALUE);
+
+ /* SQPTR */
+ uec->send_q_mem_reg_offset = qe_muram_alloc(
+ sizeof(uec_send_queue_qd_t),
+ UEC_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
+ uec->p_send_q_mem_reg = (uec_send_queue_mem_region_t *)
+ qe_muram_addr(uec->send_q_mem_reg_offset);
+ out_be32(&uec->p_tx_glbl_pram->sqptr, uec->send_q_mem_reg_offset);
+
+ /* Setup the table with TxBDs ring */
+ end_bd = (u32)uec->p_tx_bd_ring + (uec_info->tx_bd_ring_len - 1)
+ * SIZEOFBD;
+ out_be32(&uec->p_send_q_mem_reg->sqqd[0].bd_ring_base,
+ (u32)(uec->p_tx_bd_ring));
+ out_be32(&uec->p_send_q_mem_reg->sqqd[0].last_bd_completed_address,
+ end_bd);
+
+ /* Scheduler Base Pointer, we have only one Tx queue, no need it */
+ out_be32(&uec->p_tx_glbl_pram->schedulerbasepointer, 0);
+
+ /* TxRMON Base Pointer, TxRMON disable, we don't need it */
+ out_be32(&uec->p_tx_glbl_pram->txrmonbaseptr, 0);
+
+ /* TSTATE, global snooping, big endian, the CSB bus selected */
+ bmrx = BMR_INIT_VALUE;
+ out_be32(&uec->p_tx_glbl_pram->tstate, ((u32)(bmrx) << BMR_SHIFT));
+
+ /* IPH_Offset */
+ for (i = 0; i < MAX_IPH_OFFSET_ENTRY; i++) {
+ out_8(&uec->p_tx_glbl_pram->iphoffset[i], 0);
+ }
+
+ /* VTAG table */
+ for (i = 0; i < UEC_TX_VTAG_TABLE_ENTRY_MAX; i++) {
+ out_be32(&uec->p_tx_glbl_pram->vtagtable[i], 0);
+ }
+
+ /* TQPTR */
+ uec->thread_dat_tx_offset = qe_muram_alloc(
+ num_threads_tx * sizeof(uec_thread_data_tx_t) +
+ 32 *(num_threads_tx == 1), UEC_THREAD_DATA_ALIGNMENT);
+
+ uec->p_thread_data_tx = (uec_thread_data_tx_t *)
+ qe_muram_addr(uec->thread_dat_tx_offset);
+ out_be32(&uec->p_tx_glbl_pram->tqptr, uec->thread_dat_tx_offset);
+}
+
+static void uec_init_rx_parameter(uec_private_t *uec, int num_threads_rx)
+{
+ u8 bmrx = 0;
+ int i;
+ uec_82xx_address_filtering_pram_t *p_af_pram;
+
+ /* Allocate global Rx parameter RAM page */
+ uec->rx_glbl_pram_offset = qe_muram_alloc(
+ sizeof(uec_rx_global_pram_t), UEC_RX_GLOBAL_PRAM_ALIGNMENT);
+ uec->p_rx_glbl_pram = (uec_rx_global_pram_t *)
+ qe_muram_addr(uec->rx_glbl_pram_offset);
+
+ /* Zero Global Rx parameter RAM */
+ memset(uec->p_rx_glbl_pram, 0, sizeof(uec_rx_global_pram_t));
+
+ /* Init global Rx parameter RAM */
+ /* REMODER, Extended feature mode disable, VLAN disable,
+ LossLess flow control disable, Receive firmware statisic disable,
+ Extended address parsing mode disable, One Rx queues,
+ Dynamic maximum/minimum frame length disable, IP checksum check
+ disable, IP address alignment disable
+ */
+ out_be32(&uec->p_rx_glbl_pram->remoder, REMODER_INIT_VALUE);
+
+ /* RQPTR */
+ uec->thread_dat_rx_offset = qe_muram_alloc(
+ num_threads_rx * sizeof(uec_thread_data_rx_t),
+ UEC_THREAD_DATA_ALIGNMENT);
+ uec->p_thread_data_rx = (uec_thread_data_rx_t *)
+ qe_muram_addr(uec->thread_dat_rx_offset);
+ out_be32(&uec->p_rx_glbl_pram->rqptr, uec->thread_dat_rx_offset);
+
+ /* Type_or_Len */
+ out_be16(&uec->p_rx_glbl_pram->typeorlen, 3072);
+
+ /* RxRMON base pointer, we don't need it */
+ out_be32(&uec->p_rx_glbl_pram->rxrmonbaseptr, 0);
+
+ /* IntCoalescingPTR, we don't need it, no interrupt */
+ out_be32(&uec->p_rx_glbl_pram->intcoalescingptr, 0);
+
+ /* RSTATE, global snooping, big endian, the CSB bus selected */
+ bmrx = BMR_INIT_VALUE;
+ out_8(&uec->p_rx_glbl_pram->rstate, bmrx);
+
+ /* MRBLR */
+ out_be16(&uec->p_rx_glbl_pram->mrblr, MAX_RXBUF_LEN);
+
+ /* RBDQPTR */
+ uec->rx_bd_qs_tbl_offset = qe_muram_alloc(
+ sizeof(uec_rx_bd_queues_entry_t) + \
+ sizeof(uec_rx_prefetched_bds_t),
+ UEC_RX_BD_QUEUES_ALIGNMENT);
+ uec->p_rx_bd_qs_tbl = (uec_rx_bd_queues_entry_t *)
+ qe_muram_addr(uec->rx_bd_qs_tbl_offset);
+
+ /* Zero it */
+ memset(uec->p_rx_bd_qs_tbl, 0, sizeof(uec_rx_bd_queues_entry_t) + \
+ sizeof(uec_rx_prefetched_bds_t));
+ out_be32(&uec->p_rx_glbl_pram->rbdqptr, uec->rx_bd_qs_tbl_offset);
+ out_be32(&uec->p_rx_bd_qs_tbl->externalbdbaseptr,
+ (u32)uec->p_rx_bd_ring);
+
+ /* MFLR */
+ out_be16(&uec->p_rx_glbl_pram->mflr, MAX_FRAME_LEN);
+ /* MINFLR */
+ out_be16(&uec->p_rx_glbl_pram->minflr, MIN_FRAME_LEN);
+ /* MAXD1 */
+ out_be16(&uec->p_rx_glbl_pram->maxd1, MAX_DMA1_LEN);
+ /* MAXD2 */
+ out_be16(&uec->p_rx_glbl_pram->maxd2, MAX_DMA2_LEN);
+ /* ECAM_PTR */
+ out_be32(&uec->p_rx_glbl_pram->ecamptr, 0);
+ /* L2QT */
+ out_be32(&uec->p_rx_glbl_pram->l2qt, 0);
+ /* L3QT */
+ for (i = 0; i < 8; i++) {
+ out_be32(&uec->p_rx_glbl_pram->l3qt[i], 0);
+ }
+
+ /* VLAN_TYPE */
+ out_be16(&uec->p_rx_glbl_pram->vlantype, 0x8100);
+ /* TCI */
+ out_be16(&uec->p_rx_glbl_pram->vlantci, 0);
+
+ /* Clear PQ2 style address filtering hash table */
+ p_af_pram = (uec_82xx_address_filtering_pram_t *) \
+ uec->p_rx_glbl_pram->addressfiltering;
+
+ p_af_pram->iaddr_h = 0;
+ p_af_pram->iaddr_l = 0;
+ p_af_pram->gaddr_h = 0;
+ p_af_pram->gaddr_l = 0;
+}
+
+static int uec_issue_init_enet_rxtx_cmd(uec_private_t *uec,
+ int thread_tx, int thread_rx)
+{
+ uec_init_cmd_pram_t *p_init_enet_param;
+ u32 init_enet_param_offset;
+ uec_info_t *uec_info;
+ int i;
+ int snum;
+ u32 init_enet_offset;
+ u32 entry_val;
+ u32 command;
+ u32 cecr_subblock;
+
+ uec_info = uec->uec_info;
+
+ /* Allocate init enet command parameter */
+ uec->init_enet_param_offset = qe_muram_alloc(
+ sizeof(uec_init_cmd_pram_t), 4);
+ init_enet_param_offset = uec->init_enet_param_offset;
+ uec->p_init_enet_param = (uec_init_cmd_pram_t *)
+ qe_muram_addr(uec->init_enet_param_offset);
+
+ /* Zero init enet command struct */
+ memset((void *)uec->p_init_enet_param, 0, sizeof(uec_init_cmd_pram_t));
+
+ /* Init the command struct */
+ p_init_enet_param = uec->p_init_enet_param;
+ p_init_enet_param->resinit0 = ENET_INIT_PARAM_MAGIC_RES_INIT0;
+ p_init_enet_param->resinit1 = ENET_INIT_PARAM_MAGIC_RES_INIT1;
+ p_init_enet_param->resinit2 = ENET_INIT_PARAM_MAGIC_RES_INIT2;
+ p_init_enet_param->resinit3 = ENET_INIT_PARAM_MAGIC_RES_INIT3;
+ p_init_enet_param->resinit4 = ENET_INIT_PARAM_MAGIC_RES_INIT4;
+ p_init_enet_param->largestexternallookupkeysize = 0;
+
+ p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_rx)
+ << ENET_INIT_PARAM_RGF_SHIFT;
+ p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_tx)
+ << ENET_INIT_PARAM_TGF_SHIFT;
+
+ /* Init Rx global parameter pointer */
+ p_init_enet_param->rgftgfrxglobal |= uec->rx_glbl_pram_offset |
+ (u32)uec_info->risc_rx;
+
+ /* Init Rx threads */
+ for (i = 0; i < (thread_rx + 1); i++) {
+ if ((snum = qe_get_snum()) < 0) {
+ printf("%s can not get snum\n", __FUNCTION__);
+ return -ENOMEM;
+ }
+
+ if (i==0) {
+ init_enet_offset = 0;
+ } else {
+ init_enet_offset = qe_muram_alloc(
+ sizeof(uec_thread_rx_pram_t),
+ UEC_THREAD_RX_PRAM_ALIGNMENT);
+ }
+
+ entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
+ init_enet_offset | (u32)uec_info->risc_rx;
+ p_init_enet_param->rxthread[i] = entry_val;
+ }
+
+ /* Init Tx global parameter pointer */
+ p_init_enet_param->txglobal = uec->tx_glbl_pram_offset |
+ (u32)uec_info->risc_tx;
+
+ /* Init Tx threads */
+ for (i = 0; i < thread_tx; i++) {
+ if ((snum = qe_get_snum()) < 0) {
+ printf("%s can not get snum\n", __FUNCTION__);
+ return -ENOMEM;
+ }
+
+ init_enet_offset = qe_muram_alloc(sizeof(uec_thread_tx_pram_t),
+ UEC_THREAD_TX_PRAM_ALIGNMENT);
+
+ entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
+ init_enet_offset | (u32)uec_info->risc_tx;
+ p_init_enet_param->txthread[i] = entry_val;
+ }
+
+ __asm__ __volatile__("sync");
+
+ /* Issue QE command */
+ command = QE_INIT_TX_RX;
+ cecr_subblock = ucc_fast_get_qe_cr_subblock(
+ uec->uec_info->uf_info.ucc_num);
+ qe_issue_cmd(command, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET,
+ init_enet_param_offset);
+
+ return 0;
+}
+
+static int uec_startup(uec_private_t *uec)
+{
+ uec_info_t *uec_info;
+ ucc_fast_info_t *uf_info;
+ ucc_fast_private_t *uccf;
+ ucc_fast_t *uf_regs;
+ uec_t *uec_regs;
+ int num_threads_tx;
+ int num_threads_rx;
+ u32 utbipar;
+ u32 length;
+ u32 align;
+ qe_bd_t *bd;
+ u8 *buf;
+ int i;
+
+ if (!uec || !uec->uec_info) {
+ printf("%s: uec or uec_info not initial\n", __FUNCTION__);
+ return -EINVAL;
+ }
+
+ uec_info = uec->uec_info;
+ uf_info = &(uec_info->uf_info);
+
+ /* Check if Rx BD ring len is illegal */
+ if ((uec_info->rx_bd_ring_len < UEC_RX_BD_RING_SIZE_MIN) || \
+ (uec_info->rx_bd_ring_len % UEC_RX_BD_RING_SIZE_ALIGNMENT)) {
+ printf("%s: Rx BD ring len must be multiple of 4, and > 8.\n",
+ __FUNCTION__);
+ return -EINVAL;
+ }
+
+ /* Check if Tx BD ring len is illegal */
+ if (uec_info->tx_bd_ring_len < UEC_TX_BD_RING_SIZE_MIN) {
+ printf("%s: Tx BD ring length must not be smaller than 2.\n",
+ __FUNCTION__);
+ return -EINVAL;
+ }
+
+ /* Check if MRBLR is illegal */
+ if ((MAX_RXBUF_LEN == 0) || (MAX_RXBUF_LEN % UEC_MRBLR_ALIGNMENT)) {
+ printf("%s: max rx buffer length must be mutliple of 128.\n",
+ __FUNCTION__);
+ return -EINVAL;
+ }
+
+ /* Both Rx and Tx are stopped */
+ uec->grace_stopped_rx = 1;
+ uec->grace_stopped_tx = 1;
+
+ /* Init UCC fast */
+ if (ucc_fast_init(uf_info, &uccf)) {
+ printf("%s: failed to init ucc fast\n", __FUNCTION__);
+ return -ENOMEM;
+ }
+
+ /* Save uccf */
+ uec->uccf = uccf;
+
+ /* Convert the Tx threads number */
+ if (uec_convert_threads_num(uec_info->num_threads_tx,
+ &num_threads_tx)) {
+ return -EINVAL;
+ }
+
+ /* Convert the Rx threads number */
+ if (uec_convert_threads_num(uec_info->num_threads_rx,
+ &num_threads_rx)) {
+ return -EINVAL;
+ }
+
+ uf_regs = uccf->uf_regs;
+
+ /* UEC register is following UCC fast registers */
+ uec_regs = (uec_t *)(&uf_regs->ucc_eth);
+
+ /* Save the UEC register pointer to UEC private struct */
+ uec->uec_regs = uec_regs;
+
+ /* Init UPSMR, enable hardware statistics (UCC) */
+ out_be32(&uec->uccf->uf_regs->upsmr, UPSMR_INIT_VALUE);
+
+ /* Init MACCFG1, flow control disable, disable Tx and Rx */
+ out_be32(&uec_regs->maccfg1, MACCFG1_INIT_VALUE);
+
+ /* Init MACCFG2, length check, MAC PAD and CRC enable */
+ out_be32(&uec_regs->maccfg2, MACCFG2_INIT_VALUE);
+
+ /* Setup MAC interface mode */
+ uec_set_mac_if_mode(uec, uec_info->enet_interface_type, uec_info->speed);
+
+ /* Setup MII management base */
+#ifndef CONFIG_eTSEC_MDIO_BUS
+ uec->uec_mii_regs = (uec_mii_t *)(&uec_regs->miimcfg);
+#else
+ uec->uec_mii_regs = (uec_mii_t *) CONFIG_MIIM_ADDRESS;
+#endif
+
+ /* Setup MII master clock source */
+ qe_set_mii_clk_src(uec_info->uf_info.ucc_num);
+
+ /* Setup UTBIPAR */
+ utbipar = in_be32(&uec_regs->utbipar);
+ utbipar &= ~UTBIPAR_PHY_ADDRESS_MASK;
+
+ /* Initialize UTBIPAR address to CONFIG_UTBIPAR_INIT_TBIPA for ALL UEC.
+ * This frees up the remaining SMI addresses for use.
+ */
+ utbipar |= CONFIG_UTBIPAR_INIT_TBIPA << UTBIPAR_PHY_ADDRESS_SHIFT;
+ out_be32(&uec_regs->utbipar, utbipar);
+
+ /* Configure the TBI for SGMII operation */
+ if ((uec->uec_info->enet_interface_type == PHY_INTERFACE_MODE_SGMII) &&
+ (uec->uec_info->speed == SPEED_1000)) {
+ uec_write_phy_reg(uec->dev, uec_regs->utbipar,
+ ENET_TBI_MII_ANA, TBIANA_SETTINGS);
+
+ uec_write_phy_reg(uec->dev, uec_regs->utbipar,
+ ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
+
+ uec_write_phy_reg(uec->dev, uec_regs->utbipar,
+ ENET_TBI_MII_CR, TBICR_SETTINGS);
+ }
+
+ /* Allocate Tx BDs */
+ length = ((uec_info->tx_bd_ring_len * SIZEOFBD) /
+ UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) *
+ UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
+ if ((uec_info->tx_bd_ring_len * SIZEOFBD) %
+ UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) {
+ length += UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
+ }
+
+ align = UEC_TX_BD_RING_ALIGNMENT;
+ uec->tx_bd_ring_offset = (u32)malloc((u32)(length + align));
+ if (uec->tx_bd_ring_offset != 0) {
+ uec->p_tx_bd_ring = (u8 *)((uec->tx_bd_ring_offset + align)
+ & ~(align - 1));
+ }
+
+ /* Zero all of Tx BDs */
+ memset((void *)(uec->tx_bd_ring_offset), 0, length + align);
+
+ /* Allocate Rx BDs */
+ length = uec_info->rx_bd_ring_len * SIZEOFBD;
+ align = UEC_RX_BD_RING_ALIGNMENT;
+ uec->rx_bd_ring_offset = (u32)(malloc((u32)(length + align)));
+ if (uec->rx_bd_ring_offset != 0) {
+ uec->p_rx_bd_ring = (u8 *)((uec->rx_bd_ring_offset + align)
+ & ~(align - 1));
+ }
+
+ /* Zero all of Rx BDs */
+ memset((void *)(uec->rx_bd_ring_offset), 0, length + align);
+
+ /* Allocate Rx buffer */
+ length = uec_info->rx_bd_ring_len * MAX_RXBUF_LEN;
+ align = UEC_RX_DATA_BUF_ALIGNMENT;
+ uec->rx_buf_offset = (u32)malloc(length + align);
+ if (uec->rx_buf_offset != 0) {
+ uec->p_rx_buf = (u8 *)((uec->rx_buf_offset + align)
+ & ~(align - 1));
+ }
+
+ /* Zero all of the Rx buffer */
+ memset((void *)(uec->rx_buf_offset), 0, length + align);
+
+ /* Init TxBD ring */
+ bd = (qe_bd_t *)uec->p_tx_bd_ring;
+ uec->txBd = bd;
+
+ for (i = 0; i < uec_info->tx_bd_ring_len; i++) {
+ BD_DATA_CLEAR(bd);
+ BD_STATUS_SET(bd, 0);
+ BD_LENGTH_SET(bd, 0);
+ bd ++;
+ }
+ BD_STATUS_SET((--bd), TxBD_WRAP);
+
+ /* Init RxBD ring */
+ bd = (qe_bd_t *)uec->p_rx_bd_ring;
+ uec->rxBd = bd;
+ buf = uec->p_rx_buf;
+ for (i = 0; i < uec_info->rx_bd_ring_len; i++) {
+ BD_DATA_SET(bd, buf);
+ BD_LENGTH_SET(bd, 0);
+ BD_STATUS_SET(bd, RxBD_EMPTY);
+ buf += MAX_RXBUF_LEN;
+ bd ++;
+ }
+ BD_STATUS_SET((--bd), RxBD_WRAP | RxBD_EMPTY);
+
+ /* Init global Tx parameter RAM */
+ uec_init_tx_parameter(uec, num_threads_tx);
+
+ /* Init global Rx parameter RAM */
+ uec_init_rx_parameter(uec, num_threads_rx);
+
+ /* Init ethernet Tx and Rx parameter command */
+ if (uec_issue_init_enet_rxtx_cmd(uec, num_threads_tx,
+ num_threads_rx)) {
+ printf("%s issue init enet cmd failed\n", __FUNCTION__);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+static int uec_init(struct eth_device* dev, bd_t *bd)
+{
+ uec_private_t *uec;
+ int err, i;
+ struct phy_info *curphy;
+#if defined(CONFIG_P1012) || defined(CONFIG_P1021) || defined(CONFIG_P1025)
+ ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+#endif
+
+ uec = (uec_private_t *)dev->priv;
+
+ if (uec->the_first_run == 0) {
+#if defined(CONFIG_P1012) || defined(CONFIG_P1021) || defined(CONFIG_P1025)
+ /* QE9 and QE12 need to be set for enabling QE MII managment signals */
+ setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE9);
+ setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
+#endif
+
+ err = init_phy(dev);
+ if (err) {
+ printf("%s: Cannot initialize PHY, aborting.\n",
+ dev->name);
+ return err;
+ }
+
+ curphy = uec->mii_info->phyinfo;
+
+ if (curphy->config_aneg) {
+ err = curphy->config_aneg(uec->mii_info);
+ if (err) {
+ printf("%s: Can't negotiate PHY\n", dev->name);
+ return err;
+ }
+ }
+
+ /* Give PHYs up to 5 sec to report a link */
+ i = 50;
+ do {
+ err = curphy->read_status(uec->mii_info);
+ if (!(((i-- > 0) && !uec->mii_info->link) || err))
+ break;
+ udelay(100000);
+ } while (1);
+
+#if defined(CONFIG_P1012) || defined(CONFIG_P1021) || defined(CONFIG_P1025)
+ /* QE12 needs to be released for enabling LBCTL signal*/
+ clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
+#endif
+
+ if (err || i <= 0)
+ printf("warning: %s: timeout on PHY link\n", dev->name);
+
+ adjust_link(dev);
+ uec->the_first_run = 1;
+ }
+
+ /* Set up the MAC address */
+ if (dev->enetaddr[0] & 0x01) {
+ printf("%s: MacAddress is multcast address\n",
+ __FUNCTION__);
+ return -1;
+ }
+ uec_set_mac_address(uec, dev->enetaddr);
+
+
+ err = uec_open(uec, COMM_DIR_RX_AND_TX);
+ if (err) {
+ printf("%s: cannot enable UEC device\n", dev->name);
+ return -1;
+ }
+
+ phy_change(dev);
+
+ return (uec->mii_info->link ? 0 : -1);
+}
+
+static void uec_halt(struct eth_device* dev)
+{
+ uec_private_t *uec = (uec_private_t *)dev->priv;
+ uec_stop(uec, COMM_DIR_RX_AND_TX);
+}
+
+static int uec_send(struct eth_device *dev, void *buf, int len)
+{
+ uec_private_t *uec;
+ ucc_fast_private_t *uccf;
+ volatile qe_bd_t *bd;
+ u16 status;
+ int i;
+ int result = 0;
+
+ uec = (uec_private_t *)dev->priv;
+ uccf = uec->uccf;
+ bd = uec->txBd;
+
+ /* Find an empty TxBD */
+ for (i = 0; bd->status & TxBD_READY; i++) {
+ if (i > 0x100000) {
+ printf("%s: tx buffer not ready\n", dev->name);
+ return result;
+ }
+ }
+
+ /* Init TxBD */
+ BD_DATA_SET(bd, buf);
+ BD_LENGTH_SET(bd, len);
+ status = bd->status;
+ status &= BD_WRAP;
+ status |= (TxBD_READY | TxBD_LAST);
+ BD_STATUS_SET(bd, status);
+
+ /* Tell UCC to transmit the buffer */
+ ucc_fast_transmit_on_demand(uccf);
+
+ /* Wait for buffer to be transmitted */
+ for (i = 0; bd->status & TxBD_READY; i++) {
+ if (i > 0x100000) {
+ printf("%s: tx error\n", dev->name);
+ return result;
+ }
+ }
+
+ /* Ok, the buffer be transimitted */
+ BD_ADVANCE(bd, status, uec->p_tx_bd_ring);
+ uec->txBd = bd;
+ result = 1;
+
+ return result;
+}
+
+static int uec_recv(struct eth_device* dev)
+{
+ uec_private_t *uec = dev->priv;
+ volatile qe_bd_t *bd;
+ u16 status;
+ u16 len;
+ u8 *data;
+
+ bd = uec->rxBd;
+ status = bd->status;
+
+ while (!(status & RxBD_EMPTY)) {
+ if (!(status & RxBD_ERROR)) {
+ data = BD_DATA(bd);
+ len = BD_LENGTH(bd);
+ NetReceive(data, len);
+ } else {
+ printf("%s: Rx error\n", dev->name);
+ }
+ status &= BD_CLEAN;
+ BD_LENGTH_SET(bd, 0);
+ BD_STATUS_SET(bd, status | RxBD_EMPTY);
+ BD_ADVANCE(bd, status, uec->p_rx_bd_ring);
+ status = bd->status;
+ }
+ uec->rxBd = bd;
+
+ return 1;
+}
+
+int uec_initialize(bd_t *bis, uec_info_t *uec_info)
+{
+ struct eth_device *dev;
+ int i;
+ uec_private_t *uec;
+ int err;
+
+ dev = (struct eth_device *)malloc(sizeof(struct eth_device));
+ if (!dev)
+ return 0;
+ memset(dev, 0, sizeof(struct eth_device));
+
+ /* Allocate the UEC private struct */
+ uec = (uec_private_t *)malloc(sizeof(uec_private_t));
+ if (!uec) {
+ return -ENOMEM;
+ }
+ memset(uec, 0, sizeof(uec_private_t));
+
+ /* Adjust uec_info */
+#if (MAX_QE_RISC == 4)
+ uec_info->risc_tx = QE_RISC_ALLOCATION_FOUR_RISCS;
+ uec_info->risc_rx = QE_RISC_ALLOCATION_FOUR_RISCS;
+#endif
+
+ devlist[uec_info->uf_info.ucc_num] = dev;
+
+ uec->uec_info = uec_info;
+ uec->dev = dev;
+
+ sprintf(dev->name, "UEC%d", uec_info->uf_info.ucc_num);
+ dev->iobase = 0;
+ dev->priv = (void *)uec;
+ dev->init = uec_init;
+ dev->halt = uec_halt;
+ dev->send = uec_send;
+ dev->recv = uec_recv;
+
+ /* Clear the ethnet address */
+ for (i = 0; i < 6; i++)
+ dev->enetaddr[i] = 0;
+
+ eth_register(dev);
+
+ err = uec_startup(uec);
+ if (err) {
+ printf("%s: Cannot configure net device, aborting.",dev->name);
+ return err;
+ }
+
+#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
+ miiphy_register(dev->name, uec_miiphy_read, uec_miiphy_write);
+#endif
+
+ return 1;
+}
+
+int uec_eth_init(bd_t *bis, uec_info_t *uecs, int num)
+{
+ int i;
+
+ for (i = 0; i < num; i++)
+ uec_initialize(bis, &uecs[i]);
+
+ return 0;
+}
+
+int uec_standard_init(bd_t *bis)
+{
+ return uec_eth_init(bis, uec_info, ARRAY_SIZE(uec_info));
+}
