diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/tsec.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/drivers/net/tsec.c b/drivers/net/tsec.c index 78ffc95c5..160bc0597 100644 --- a/drivers/net/tsec.c +++ b/drivers/net/tsec.c @@ -19,6 +19,7 @@ #include <tsec.h> #include <fsl_mdio.h> #include <asm/errno.h> +#include <asm/processor.h> DECLARE_GLOBAL_DATA_PTR; @@ -43,6 +44,9 @@ static RTXBD rtx __attribute__ ((aligned(8))); #error "rtx must be 64-bit aligned" #endif +static int tsec_send(struct eth_device *dev, + volatile void *packet, int length); + /* Default initializations for TSEC controllers. */ static struct tsec_info_struct tsec_info[] = { @@ -236,6 +240,87 @@ static void adjust_link(struct tsec_private *priv, struct phy_device *phydev) (phydev->port == PORT_FIBRE) ? ", fiber mode" : ""); } +#ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129 +/* + * When MACCFG1[Rx_EN] is enabled during system boot as part + * of the eTSEC port initialization sequence, + * the eTSEC Rx logic may not be properly initialized. + */ +void redundant_init(struct eth_device *dev) +{ + struct tsec_private *priv = dev->priv; + tsec_t *regs = priv->regs; + uint t, count = 0; + int fail = 1; + static const u8 pkt[] = { + 0x00, 0x1e, 0x4f, 0x12, 0xcb, 0x2c, 0x00, 0x25, + 0x64, 0xbb, 0xd1, 0xab, 0x08, 0x00, 0x45, 0x00, + 0x00, 0x5c, 0xdd, 0x22, 0x00, 0x00, 0x80, 0x01, + 0x1f, 0x71, 0x0a, 0xc1, 0x14, 0x22, 0x0a, 0xc1, + 0x14, 0x6a, 0x08, 0x00, 0xef, 0x7e, 0x02, 0x00, + 0x94, 0x05, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, + 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, + 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, + 0x77, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, + 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, + 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, + 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, + 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, + 0x71, 0x72}; + + /* Enable promiscuous mode */ + setbits_be32(®s->rctrl, 0x8); + /* Enable loopback mode */ + setbits_be32(®s->maccfg1, MACCFG1_LOOPBACK); + /* Enable transmit and receive */ + setbits_be32(®s->maccfg1, MACCFG1_RX_EN | MACCFG1_TX_EN); + + /* Tell the DMA it is clear to go */ + setbits_be32(®s->dmactrl, DMACTRL_INIT_SETTINGS); + out_be32(®s->tstat, TSTAT_CLEAR_THALT); + out_be32(®s->rstat, RSTAT_CLEAR_RHALT); + clrbits_be32(®s->dmactrl, DMACTRL_GRS | DMACTRL_GTS); + + do { + tsec_send(dev, (void *)pkt, sizeof(pkt)); + + /* Wait for buffer to be received */ + for (t = 0; rtx.rxbd[rxIdx].status & RXBD_EMPTY; t++) { + if (t >= 10 * TOUT_LOOP) { + printf("%s: tsec: rx error\n", dev->name); + break; + } + } + + if (!memcmp(pkt, (void *)NetRxPackets[rxIdx], sizeof(pkt))) + fail = 0; + + rtx.rxbd[rxIdx].length = 0; + rtx.rxbd[rxIdx].status = + RXBD_EMPTY | (((rxIdx + 1) == PKTBUFSRX) ? RXBD_WRAP : 0); + rxIdx = (rxIdx + 1) % PKTBUFSRX; + + if (in_be32(®s->ievent) & IEVENT_BSY) { + out_be32(®s->ievent, IEVENT_BSY); + out_be32(®s->rstat, RSTAT_CLEAR_RHALT); + } + if (fail) { + printf("loopback recv packet error!\n"); + clrbits_be32(®s->maccfg1, MACCFG1_RX_EN); + udelay(1000); + setbits_be32(®s->maccfg1, MACCFG1_RX_EN); + } + } while ((count++ < 4) && (fail == 1)); + + if (fail) + panic("eTSEC init fail!\n"); + /* Disable promiscuous mode */ + clrbits_be32(®s->rctrl, 0x8); + /* Disable loopback mode */ + clrbits_be32(®s->maccfg1, MACCFG1_LOOPBACK); +} +#endif + /* Set up the buffers and their descriptors, and bring up the * interface */ @@ -248,6 +333,9 @@ static void startup_tsec(struct eth_device *dev) /* reset the indices to zero */ rxIdx = 0; txIdx = 0; +#ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129 + uint svr; +#endif /* Point to the buffer descriptors */ out_be32(®s->tbase, (unsigned int)(&rtx.txbd[txIdx])); @@ -269,6 +357,11 @@ static void startup_tsec(struct eth_device *dev) } rtx.txbd[TX_BUF_CNT - 1].status |= TXBD_WRAP; +#ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129 + svr = get_svr(); + if ((SVR_MAJ(svr) == 1) || IS_SVR_REV(svr, 2, 0)) + redundant_init(dev); +#endif /* Enable Transmit and Receive */ setbits_be32(®s->maccfg1, MACCFG1_RX_EN | MACCFG1_TX_EN); |