upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/drivers/net/fm/eth.c

671 lines
17 KiB

/*
* Copyright 2009-2011 Freescale Semiconductor, Inc.
* Dave Liu <daveliu@freescale.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <asm/io.h>
#include <malloc.h>
#include <net.h>
#include <hwconfig.h>
#include <fm_eth.h>
#include <fsl_mdio.h>
#include <miiphy.h>
#include <phy.h>
#include <asm/fsl_dtsec.h>
#include <asm/fsl_tgec.h>
#include "fm.h"
static struct eth_device *devlist[NUM_FM_PORTS];
static int num_controllers;
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) && !defined(BITBANGMII)
#define TBIANA_SETTINGS (TBIANA_ASYMMETRIC_PAUSE | TBIANA_SYMMETRIC_PAUSE | \
TBIANA_FULL_DUPLEX)
#define TBIANA_SGMII_ACK 0x4001
#define TBICR_SETTINGS (TBICR_ANEG_ENABLE | TBICR_RESTART_ANEG | \
TBICR_FULL_DUPLEX | TBICR_SPEED1_SET)
/* Configure the TBI for SGMII operation */
void dtsec_configure_serdes(struct fm_eth *priv)
{
struct dtsec *regs = priv->mac->base;
struct tsec_mii_mng *phyregs = priv->mac->phyregs;
/*
* Access TBI PHY registers at given TSEC register offset as
* opposed to the register offset used for external PHY accesses
*/
tsec_local_mdio_write(phyregs, in_be32(&regs->tbipa), 0, TBI_TBICON,
TBICON_CLK_SELECT);
tsec_local_mdio_write(phyregs, in_be32(&regs->tbipa), 0, TBI_ANA,
TBIANA_SGMII_ACK);
tsec_local_mdio_write(phyregs, in_be32(&regs->tbipa), 0,
TBI_CR, TBICR_SETTINGS);
}
static void dtsec_init_phy(struct eth_device *dev)
{
struct fm_eth *fm_eth = dev->priv;
struct dtsec *regs = (struct dtsec *)fm_eth->mac->base;
/* Assign a Physical address to the TBI */
out_be32(&regs->tbipa, CONFIG_SYS_TBIPA_VALUE);
if (fm_eth->enet_if == PHY_INTERFACE_MODE_SGMII)
dtsec_configure_serdes(fm_eth);
}
static int tgec_is_fibre(struct eth_device *dev)
{
struct fm_eth *fm = dev->priv;
char phyopt[20];
sprintf(phyopt, "fsl_fm%d_xaui_phy", fm->fm_index + 1);
return hwconfig_arg_cmp(phyopt, "xfi");
}
#endif
static u16 muram_readw(u16 *addr)
{
u32 base = (u32)addr & ~0x3;
u32 val32 = *(u32 *)base;
int byte_pos;
u16 ret;
byte_pos = (u32)addr & 0x3;
if (byte_pos)
ret = (u16)(val32 & 0x0000ffff);
else
ret = (u16)((val32 & 0xffff0000) >> 16);
return ret;
}
static void muram_writew(u16 *addr, u16 val)
{
u32 base = (u32)addr & ~0x3;
u32 org32 = *(u32 *)base;
u32 val32;
int byte_pos;
byte_pos = (u32)addr & 0x3;
if (byte_pos)
val32 = (org32 & 0xffff0000) | val;
else
val32 = (org32 & 0x0000ffff) | ((u32)val << 16);
*(u32 *)base = val32;
}
static void bmi_rx_port_disable(struct fm_bmi_rx_port *rx_port)
{
int timeout = 1000000;
clrbits_be32(&rx_port->fmbm_rcfg, FMBM_RCFG_EN);
/* wait until the rx port is not busy */
while ((in_be32(&rx_port->fmbm_rst) & FMBM_RST_BSY) && timeout--)
;
}
static void bmi_rx_port_init(struct fm_bmi_rx_port *rx_port)
{
/* set BMI to independent mode, Rx port disable */
out_be32(&rx_port->fmbm_rcfg, FMBM_RCFG_IM);
/* clear FOF in IM case */
out_be32(&rx_port->fmbm_rim, 0);
/* Rx frame next engine -RISC */
out_be32(&rx_port->fmbm_rfne, NIA_ENG_RISC | NIA_RISC_AC_IM_RX);
/* Rx command attribute - no order, MR[3] = 1 */
clrbits_be32(&rx_port->fmbm_rfca, FMBM_RFCA_ORDER | FMBM_RFCA_MR_MASK);
setbits_be32(&rx_port->fmbm_rfca, FMBM_RFCA_MR(4));
/* enable Rx statistic counters */
out_be32(&rx_port->fmbm_rstc, FMBM_RSTC_EN);
/* disable Rx performance counters */
out_be32(&rx_port->fmbm_rpc, 0);
}
static void bmi_tx_port_disable(struct fm_bmi_tx_port *tx_port)
{
int timeout = 1000000;
clrbits_be32(&tx_port->fmbm_tcfg, FMBM_TCFG_EN);
/* wait until the tx port is not busy */
while ((in_be32(&tx_port->fmbm_tst) & FMBM_TST_BSY) && timeout--)
;
}
static void bmi_tx_port_init(struct fm_bmi_tx_port *tx_port)
{
/* set BMI to independent mode, Tx port disable */
out_be32(&tx_port->fmbm_tcfg, FMBM_TCFG_IM);
/* Tx frame next engine -RISC */
out_be32(&tx_port->fmbm_tfne, NIA_ENG_RISC | NIA_RISC_AC_IM_TX);
out_be32(&tx_port->fmbm_tfene, NIA_ENG_RISC | NIA_RISC_AC_IM_TX);
/* Tx command attribute - no order, MR[3] = 1 */
clrbits_be32(&tx_port->fmbm_tfca, FMBM_TFCA_ORDER | FMBM_TFCA_MR_MASK);
setbits_be32(&tx_port->fmbm_tfca, FMBM_TFCA_MR(4));
/* enable Tx statistic counters */
out_be32(&tx_port->fmbm_tstc, FMBM_TSTC_EN);
/* disable Tx performance counters */
out_be32(&tx_port->fmbm_tpc, 0);
}
static int fm_eth_rx_port_parameter_init(struct fm_eth *fm_eth)
{
struct fm_port_global_pram *pram;
u32 pram_page_offset;
void *rx_bd_ring_base;
void *rx_buf_pool;
struct fm_port_bd *rxbd;
struct fm_port_qd *rxqd;
struct fm_bmi_rx_port *bmi_rx_port = fm_eth->rx_port;
int i;
/* alloc global parameter ram at MURAM */
pram = (struct fm_port_global_pram *)fm_muram_alloc(fm_eth->fm_index,
FM_PRAM_SIZE, FM_PRAM_ALIGN);
fm_eth->rx_pram = pram;
/* parameter page offset to MURAM */
pram_page_offset = (u32)pram - fm_muram_base(fm_eth->fm_index);
/* enable global mode- snooping data buffers and BDs */
pram->mode = PRAM_MODE_GLOBAL;
/* init the Rx queue descriptor pionter */
pram->rxqd_ptr = pram_page_offset + 0x20;
/* set the max receive buffer length, power of 2 */
muram_writew(&pram->mrblr, MAX_RXBUF_LOG2);
/* alloc Rx buffer descriptors from main memory */
rx_bd_ring_base = malloc(sizeof(struct fm_port_bd)
* RX_BD_RING_SIZE);
if (!rx_bd_ring_base)
return 0;
memset(rx_bd_ring_base, 0, sizeof(struct fm_port_bd)
* RX_BD_RING_SIZE);
/* alloc Rx buffer from main memory */
rx_buf_pool = malloc(MAX_RXBUF_LEN * RX_BD_RING_SIZE);
if (!rx_buf_pool)
return 0;
memset(rx_buf_pool, 0, MAX_RXBUF_LEN * RX_BD_RING_SIZE);
/* save them to fm_eth */
fm_eth->rx_bd_ring = rx_bd_ring_base;
fm_eth->cur_rxbd = rx_bd_ring_base;
fm_eth->rx_buf = rx_buf_pool;
/* init Rx BDs ring */
rxbd = (struct fm_port_bd *)rx_bd_ring_base;
for (i = 0; i < RX_BD_RING_SIZE; i++) {
rxbd->status = RxBD_EMPTY;
rxbd->len = 0;
rxbd->buf_ptr_hi = 0;
rxbd->buf_ptr_lo = (u32)rx_buf_pool + i * MAX_RXBUF_LEN;
rxbd++;
}
/* set the Rx queue descriptor */
rxqd = &pram->rxqd;
muram_writew(&rxqd->gen, 0);
muram_writew(&rxqd->bd_ring_base_hi, 0);
rxqd->bd_ring_base_lo = (u32)rx_bd_ring_base;
muram_writew(&rxqd->bd_ring_size, sizeof(struct fm_port_bd)
* RX_BD_RING_SIZE);
muram_writew(&rxqd->offset_in, 0);
muram_writew(&rxqd->offset_out, 0);
/* set IM parameter ram pointer to Rx Frame Queue ID */
out_be32(&bmi_rx_port->fmbm_rfqid, pram_page_offset);
return 1;
}
static int fm_eth_tx_port_parameter_init(struct fm_eth *fm_eth)
{
struct fm_port_global_pram *pram;
u32 pram_page_offset;
void *tx_bd_ring_base;
struct fm_port_bd *txbd;
struct fm_port_qd *txqd;
struct fm_bmi_tx_port *bmi_tx_port = fm_eth->tx_port;
int i;
/* alloc global parameter ram at MURAM */
pram = (struct fm_port_global_pram *)fm_muram_alloc(fm_eth->fm_index,
FM_PRAM_SIZE, FM_PRAM_ALIGN);
fm_eth->tx_pram = pram;
/* parameter page offset to MURAM */
pram_page_offset = (u32)pram - fm_muram_base(fm_eth->fm_index);
/* enable global mode- snooping data buffers and BDs */
pram->mode = PRAM_MODE_GLOBAL;
/* init the Tx queue descriptor pionter */
pram->txqd_ptr = pram_page_offset + 0x40;
/* alloc Tx buffer descriptors from main memory */
tx_bd_ring_base = malloc(sizeof(struct fm_port_bd)
* TX_BD_RING_SIZE);
if (!tx_bd_ring_base)
return 0;
memset(tx_bd_ring_base, 0, sizeof(struct fm_port_bd)
* TX_BD_RING_SIZE);
/* save it to fm_eth */
fm_eth->tx_bd_ring = tx_bd_ring_base;
fm_eth->cur_txbd = tx_bd_ring_base;
/* init Tx BDs ring */
txbd = (struct fm_port_bd *)tx_bd_ring_base;
for (i = 0; i < TX_BD_RING_SIZE; i++) {
txbd->status = TxBD_LAST;
txbd->len = 0;
txbd->buf_ptr_hi = 0;
txbd->buf_ptr_lo = 0;
}
/* set the Tx queue decriptor */
txqd = &pram->txqd;
muram_writew(&txqd->bd_ring_base_hi, 0);
txqd->bd_ring_base_lo = (u32)tx_bd_ring_base;
muram_writew(&txqd->bd_ring_size, sizeof(struct fm_port_bd)
* TX_BD_RING_SIZE);
muram_writew(&txqd->offset_in, 0);
muram_writew(&txqd->offset_out, 0);
/* set IM parameter ram pointer to Tx Confirmation Frame Queue ID */
out_be32(&bmi_tx_port->fmbm_tcfqid, pram_page_offset);
return 1;
}
static int fm_eth_init(struct fm_eth *fm_eth)
{
if (!fm_eth_rx_port_parameter_init(fm_eth))
return 0;
if (!fm_eth_tx_port_parameter_init(fm_eth))
return 0;
return 1;
}
static int fm_eth_startup(struct fm_eth *fm_eth)
{
struct fsl_enet_mac *mac;
mac = fm_eth->mac;
/* Rx/TxBDs, Rx/TxQDs, Rx buff and parameter ram init */
if (!fm_eth_init(fm_eth))
return 0;
/* setup the MAC controller */
mac->init_mac(mac);
/* For some reason we need to set SPEED_100 */
if ((fm_eth->enet_if == PHY_INTERFACE_MODE_SGMII) && mac->set_if_mode)
mac->set_if_mode(mac, fm_eth->enet_if, SPEED_100);
/* init bmi rx port, IM mode and disable */
bmi_rx_port_init(fm_eth->rx_port);
/* init bmi tx port, IM mode and disable */
bmi_tx_port_init(fm_eth->tx_port);
return 1;
}
static void fmc_tx_port_graceful_stop_enable(struct fm_eth *fm_eth)
{
struct fm_port_global_pram *pram;
pram = fm_eth->tx_pram;
/* graceful stop transmission of frames */
pram->mode |= PRAM_MODE_GRACEFUL_STOP;
sync();
}
static void fmc_tx_port_graceful_stop_disable(struct fm_eth *fm_eth)
{
struct fm_port_global_pram *pram;
pram = fm_eth->tx_pram;
/* re-enable transmission of frames */
pram->mode &= ~PRAM_MODE_GRACEFUL_STOP;
sync();
}
static int fm_eth_open(struct eth_device *dev, bd_t *bd)
{
struct fm_eth *fm_eth;
struct fsl_enet_mac *mac;
fm_eth = (struct fm_eth *)dev->priv;
mac = fm_eth->mac;
/* setup the MAC address */
if (dev->enetaddr[0] & 0x01) {
printf("%s: MacAddress is multcast address\n", __func__);
return 1;
}
mac->set_mac_addr(mac, dev->enetaddr);
/* enable bmi Rx port */
setbits_be32(&fm_eth->rx_port->fmbm_rcfg, FMBM_RCFG_EN);
/* enable MAC rx/tx port */
mac->enable_mac(mac);
/* enable bmi Tx port */
setbits_be32(&fm_eth->tx_port->fmbm_tcfg, FMBM_TCFG_EN);
/* re-enable transmission of frame */
fmc_tx_port_graceful_stop_disable(fm_eth);
#ifdef CONFIG_PHYLIB
phy_startup(fm_eth->phydev);
#else
fm_eth->phydev->speed = SPEED_1000;
fm_eth->phydev->link = 1;
fm_eth->phydev->duplex = DUPLEX_FULL;
#endif
/* set the MAC-PHY mode */
mac->set_if_mode(mac, fm_eth->enet_if, fm_eth->phydev->speed);
if (!fm_eth->phydev->link)
printf("%s: No link.\n", fm_eth->phydev->dev->name);
return fm_eth->phydev->link ? 0 : -1;
}
static void fm_eth_halt(struct eth_device *dev)
{
struct fm_eth *fm_eth;
struct fsl_enet_mac *mac;
fm_eth = (struct fm_eth *)dev->priv;
mac = fm_eth->mac;
/* graceful stop the transmission of frames */
fmc_tx_port_graceful_stop_enable(fm_eth);
/* disable bmi Tx port */
bmi_tx_port_disable(fm_eth->tx_port);
/* disable MAC rx/tx port */
mac->disable_mac(mac);
/* disable bmi Rx port */
bmi_rx_port_disable(fm_eth->rx_port);
phy_shutdown(fm_eth->phydev);
}
static int fm_eth_send(struct eth_device *dev, volatile void *buf, int len)
{
struct fm_eth *fm_eth;
struct fm_port_global_pram *pram;
struct fm_port_bd *txbd, *txbd_base;
u16 offset_in;
int i;
fm_eth = (struct fm_eth *)dev->priv;
pram = fm_eth->tx_pram;
txbd = fm_eth->cur_txbd;
/* find one empty TxBD */
for (i = 0; txbd->status & TxBD_READY; i++) {
udelay(100);
if (i > 0x1000) {
printf("%s: Tx buffer not ready\n", dev->name);
return 0;
}
}
/* setup TxBD */
txbd->buf_ptr_hi = 0;
txbd->buf_ptr_lo = (u32)buf;
txbd->len = len;
sync();
txbd->status = TxBD_READY | TxBD_LAST;
sync();
/* update TxQD, let RISC to send the packet */
offset_in = muram_readw(&pram->txqd.offset_in);
offset_in += sizeof(struct fm_port_bd);
if (offset_in >= muram_readw(&pram->txqd.bd_ring_size))
offset_in = 0;
muram_writew(&pram->txqd.offset_in, offset_in);
sync();
/* wait for buffer to be transmitted */
for (i = 0; txbd->status & TxBD_READY; i++) {
udelay(100);
if (i > 0x10000) {
printf("%s: Tx error\n", dev->name);
return 0;
}
}
/* advance the TxBD */
txbd++;
txbd_base = (struct fm_port_bd *)fm_eth->tx_bd_ring;
if (txbd >= (txbd_base + TX_BD_RING_SIZE))
txbd = txbd_base;
/* update current txbd */
fm_eth->cur_txbd = (void *)txbd;
return 1;
}
static int fm_eth_recv(struct eth_device *dev)
{
struct fm_eth *fm_eth;
struct fm_port_global_pram *pram;
struct fm_port_bd *rxbd, *rxbd_base;
u16 status, len;
u8 *data;
u16 offset_out;
fm_eth = (struct fm_eth *)dev->priv;
pram = fm_eth->rx_pram;
rxbd = fm_eth->cur_rxbd;
status = rxbd->status;
while (!(status & RxBD_EMPTY)) {
if (!(status & RxBD_ERROR)) {
data = (u8 *)rxbd->buf_ptr_lo;
len = rxbd->len;
NetReceive(data, len);
} else {
printf("%s: Rx error\n", dev->name);
return 0;
}
/* clear the RxBDs */
rxbd->status = RxBD_EMPTY;
rxbd->len = 0;
sync();
/* advance RxBD */
rxbd++;
rxbd_base = (struct fm_port_bd *)fm_eth->rx_bd_ring;
if (rxbd >= (rxbd_base + RX_BD_RING_SIZE))
rxbd = rxbd_base;
/* read next status */
status = rxbd->status;
/* update RxQD */
offset_out = muram_readw(&pram->rxqd.offset_out);
offset_out += sizeof(struct fm_port_bd);
if (offset_out >= muram_readw(&pram->rxqd.bd_ring_size))
offset_out = 0;
muram_writew(&pram->rxqd.offset_out, offset_out);
sync();
}
fm_eth->cur_rxbd = (void *)rxbd;
return 1;
}
static int fm_eth_init_mac(struct fm_eth *fm_eth, struct ccsr_fman *reg)
{
struct fsl_enet_mac *mac;
int num;
void *base, *phyregs = NULL;
num = fm_eth->num;
/* Get the mac registers base address */
if (fm_eth->type == FM_ETH_1G_E) {
base = &reg->mac_1g[num].fm_dtesc;
phyregs = &reg->mac_1g[num].fm_mdio.miimcfg;
} else {
base = &reg->mac_10g[num].fm_10gec;
phyregs = &reg->mac_10g[num].fm_10gec_mdio;
}
/* alloc mac controller */
mac = malloc(sizeof(struct fsl_enet_mac));
if (!mac)
return 0;
memset(mac, 0, sizeof(struct fsl_enet_mac));
/* save the mac to fm_eth struct */
fm_eth->mac = mac;
if (fm_eth->type == FM_ETH_1G_E)
init_dtsec(mac, base, phyregs, MAX_RXBUF_LEN);
else
init_tgec(mac, base, phyregs, MAX_RXBUF_LEN);
return 1;
}
static int init_phy(struct eth_device *dev)
{
struct fm_eth *fm_eth = dev->priv;
struct phy_device *phydev = NULL;
u32 supported;
#ifdef CONFIG_PHYLIB
if (fm_eth->type == FM_ETH_1G_E)
dtsec_init_phy(dev);
if (fm_eth->bus) {
phydev = phy_connect(fm_eth->bus, fm_eth->phyaddr, dev,
fm_eth->enet_if);
}
if (!phydev) {
printf("Failed to connect\n");
return -1;
}
if (fm_eth->type == FM_ETH_1G_E) {
supported = (SUPPORTED_10baseT_Half |
SUPPORTED_10baseT_Full |
SUPPORTED_100baseT_Half |
SUPPORTED_100baseT_Full |
SUPPORTED_1000baseT_Full);
} else {
supported = SUPPORTED_10000baseT_Full;
if (tgec_is_fibre(dev))
phydev->port = PORT_FIBRE;
}
phydev->supported &= supported;
phydev->advertising = phydev->supported;
fm_eth->phydev = phydev;
phy_config(phydev);
#endif
return 0;
}
int fm_eth_initialize(struct ccsr_fman *reg, struct fm_eth_info *info)
{
struct eth_device *dev;
struct fm_eth *fm_eth;
int i, num = info->num;
/* alloc eth device */
dev = (struct eth_device *)malloc(sizeof(struct eth_device));
if (!dev)
return 0;
memset(dev, 0, sizeof(struct eth_device));
/* alloc the FMan ethernet private struct */
fm_eth = (struct fm_eth *)malloc(sizeof(struct fm_eth));
if (!fm_eth)
return 0;
memset(fm_eth, 0, sizeof(struct fm_eth));
/* save off some things we need from the info struct */
fm_eth->fm_index = info->index - 1; /* keep as 0 based for muram */
fm_eth->num = num;
fm_eth->type = info->type;
fm_eth->rx_port = (void *)&reg->port[info->rx_port_id - 1].fm_bmi;
fm_eth->tx_port = (void *)&reg->port[info->tx_port_id - 1].fm_bmi;
/* set the ethernet max receive length */
fm_eth->max_rx_len = MAX_RXBUF_LEN;
/* init global mac structure */
if (!fm_eth_init_mac(fm_eth, reg))
return 0;
/* keep same as the manual, we call FMAN1, FMAN2, DTSEC1, DTSEC2, etc */
if (fm_eth->type == FM_ETH_1G_E)
sprintf(dev->name, "FM%d@DTSEC%d", info->index, num + 1);
else
sprintf(dev->name, "FM%d@TGEC%d", info->index, num + 1);
devlist[num_controllers++] = dev;
dev->iobase = 0;
dev->priv = (void *)fm_eth;
dev->init = fm_eth_open;
dev->halt = fm_eth_halt;
dev->send = fm_eth_send;
dev->recv = fm_eth_recv;
fm_eth->dev = dev;
fm_eth->bus = info->bus;
fm_eth->phyaddr = info->phy_addr;
fm_eth->enet_if = info->enet_if;
/* startup the FM im */
if (!fm_eth_startup(fm_eth))
return 0;
if (init_phy(dev))
return 0;
/* clear the ethernet address */
for (i = 0; i < 6; i++)
dev->enetaddr[i] = 0;
eth_register(dev);
return 1;
}