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u-boot/drivers/qe/uec.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
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>
2018-05-07 09:34:12 -04:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2006-2011 Freescale Semiconductor, Inc.
*
* Dave Liu <daveliu@freescale.com>
*/
#include <common.h>
#include <net.h>
#include <malloc.h>
#include <linux/errno.h>
#include <asm/io.h>
#include <linux/immap_qe.h>
#include "uccf.h"
#include "uec.h"
#include "uec_phy.h"
#include "miiphy.h"
#include <fsl_qe.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_ARCH_P1021) || defined(CONFIG_ARCH_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_ARCH_P1021) || defined(CONFIG_ARCH_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(struct mii_dev *bus, int addr, int devad, int reg)
{
unsigned short value = 0;
int devindex = 0;
if (bus->name == NULL) {
debug("%s: NULL pointer given\n", __FUNCTION__);
} else {
devindex = uec_miiphy_find_dev_by_name(bus->name);
if (devindex >= 0) {
value = uec_read_phy_reg(devlist[devindex], addr, reg);
}
}
return value;
}
/*
* Write a MII PHY register.
*
* Returns:
* 0 on success
*/
static int uec_miiphy_write(struct mii_dev *bus, int addr, int devad, int reg,
u16 value)
{
int devindex = 0;
if (bus->name == NULL) {
debug("%s: NULL pointer given\n", __FUNCTION__);
} else {
devindex = uec_miiphy_find_dev_by_name(bus->name);
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_ARCH_P1021) || defined(CONFIG_ARCH_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_ARCH_P1021) || defined(CONFIG_ARCH_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_ARCH_P1021) || defined(CONFIG_ARCH_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);
net_process_received_packet(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)
int retval;
struct mii_dev *mdiodev = mdio_alloc();
if (!mdiodev)
return -ENOMEM;
strncpy(mdiodev->name, dev->name, MDIO_NAME_LEN);
mdiodev->read = uec_miiphy_read;
mdiodev->write = uec_miiphy_write;
retval = mdio_register(mdiodev);
if (retval < 0)
return retval;
#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));
}
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