This patch adds an FTMAC100 ethernet driver for Faraday A320 evaluation board.
Signed-off-by: Po-Yu Chuang ratbert@faraday-tech.com --- drivers/net/Makefile | 1 + drivers/net/ftmac100.c | 268 ++++++++++++++++++++++++++++++++++++++++++++++++ drivers/net/ftmac100.h | 154 +++++++++++++++++++++++++++ include/netdev.h | 1 + 4 files changed, 424 insertions(+), 0 deletions(-) create mode 100644 drivers/net/ftmac100.c create mode 100644 drivers/net/ftmac100.h
diff --git a/drivers/net/Makefile b/drivers/net/Makefile index c6097c3..8edf529 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -38,6 +38,7 @@ COBJS-$(CONFIG_E1000) += e1000.o COBJS-$(CONFIG_EEPRO100) += eepro100.o COBJS-$(CONFIG_ENC28J60) += enc28j60.o COBJS-$(CONFIG_FSLDMAFEC) += fsl_mcdmafec.o mcfmii.o +COBJS-$(CONFIG_DRIVER_FTMAC100) += ftmac100.o COBJS-$(CONFIG_GRETH) += greth.o COBJS-$(CONFIG_INCA_IP_SWITCH) += inca-ip_sw.o COBJS-$(CONFIG_KIRKWOOD_EGIGA) += kirkwood_egiga.o diff --git a/drivers/net/ftmac100.c b/drivers/net/ftmac100.c new file mode 100644 index 0000000..3057822 --- /dev/null +++ b/drivers/net/ftmac100.c @@ -0,0 +1,268 @@ +/* + * Faraday FTMAC100 Ethernet + * + * (C) Copyright 2009 Faraday Technology + * Po-Yu Chuang ratbert@faraday-tech.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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#undef DEBUG + +#include <config.h> +#include <common.h> +#include <malloc.h> +#include <net.h> +#include <asm/io.h> + +#include "ftmac100.h" + +struct ftmac100_data { + volatile struct ftmac100_txdes txdes[1]; + volatile struct ftmac100_rxdes rxdes[PKTBUFSRX]; + int rx_index; +}; + +/* + * Reset MAC + */ +static void ftmac100_reset (struct eth_device *dev) +{ + volatile struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase; + + debug ("%s()\n", __func__); + + writel (FTMAC100_MACCR_SW_RST, &ftmac100->maccr); + + while (readl (&ftmac100->maccr) & FTMAC100_MACCR_SW_RST) ; +} + +/* + * Set MAC address + */ +static void ftmac100_set_mac (struct eth_device *dev, const unsigned char *mac) +{ + volatile struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase; + unsigned int maddr = mac[0] << 8 | mac[1]; + unsigned int laddr = mac[2] << 24 | mac[3] << 16 | mac[4] << 8 | mac[5]; + + debug ("%s(%x %x)\n", __func__, maddr, laddr); + + writel (maddr, &ftmac100->mac_madr); + writel (laddr, &ftmac100->mac_ladr); +} + +/* + * disable transmitter, receiver + */ +static void ftmac100_halt (struct eth_device *dev) +{ + volatile struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase; + + debug ("%s()\n", __func__); + + writel (0, &ftmac100->maccr); +} + +static int ftmac100_init (struct eth_device *dev, bd_t * bd) +{ + volatile struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase; + struct ftmac100_data *priv = dev->priv; + volatile struct ftmac100_txdes *txdes = priv->txdes; + volatile struct ftmac100_rxdes *rxdes = priv->rxdes; + unsigned int maccr; + int i; + + debug ("%s()\n", __func__); + + ftmac100_reset (dev); + + /* set the ethernet address */ + + ftmac100_set_mac (dev, dev->enetaddr); + + /* disable all interrupts */ + + writel (0, &ftmac100->imr); + + /* initialize descriptors */ + + priv->rx_index = 0; + + txdes[0].txdes1 = FTMAC100_TXDES1_EDOTR; + rxdes[PKTBUFSRX - 1].rxdes1 = FTMAC100_RXDES1_EDORR; + + for (i = 0; i < PKTBUFSRX; i++) { + /* RXBUF_BADR */ + rxdes[i].rxdes2 = (unsigned int)NetRxPackets[i]; + rxdes[i].rxdes1 |= FTMAC100_RXDES1_RXBUF_SIZE (PKTSIZE_ALIGN); + rxdes[i].rxdes0 = FTMAC100_RXDES0_RXDMA_OWN; + } + + /* transmit ring */ + + writel ((unsigned int)txdes, &ftmac100->txr_badr); + + /* receive ring */ + + writel ((unsigned int)rxdes, &ftmac100->rxr_badr); + + /* poll receive descriptor automatically */ + + writel (FTMAC100_APTC_RXPOLL_CNT (1), &ftmac100->aptc); + + /* enable transmitter, receiver */ + + maccr = FTMAC100_MACCR_XMT_EN | + FTMAC100_MACCR_RCV_EN | + FTMAC100_MACCR_XDMA_EN | + FTMAC100_MACCR_RDMA_EN | + FTMAC100_MACCR_CRC_APD | + FTMAC100_MACCR_ENRX_IN_HALFTX | + FTMAC100_MACCR_RX_RUNT | + FTMAC100_MACCR_RX_BROADPKT; + + writel (maccr, &ftmac100->maccr); + + return 0; +} + +/* + * Get a data block via Ethernet + */ +static int ftmac100_recv (struct eth_device *dev) +{ + struct ftmac100_data *priv = dev->priv; + volatile struct ftmac100_rxdes *curr_des; + unsigned short rxlen; + + curr_des = &priv->rxdes[priv->rx_index]; + + if (curr_des->rxdes0 & FTMAC100_RXDES0_RXDMA_OWN) + return -1; + + if (curr_des->rxdes0 & (FTMAC100_RXDES0_RX_ERR | + FTMAC100_RXDES0_CRC_ERR | + FTMAC100_RXDES0_FTL | + FTMAC100_RXDES0_RUNT | + FTMAC100_RXDES0_RX_ODD_NB)) { + return -1; + } + + rxlen = FTMAC100_RXDES0_RFL (curr_des->rxdes0); + + debug ("%s(): RX buffer %d, %x received\n", + __func__, priv->rx_index, rxlen); + + /* pass the packet up to the protocol layers. */ + + NetReceive ((void *)curr_des->rxdes2, rxlen); + + /* release buffer to DMA */ + + curr_des->rxdes0 |= FTMAC100_RXDES0_RXDMA_OWN; + + priv->rx_index = (priv->rx_index + 1) % PKTBUFSRX; + + return 0; +} + +/* + * Send a data block via Ethernet + */ +static int +ftmac100_send (struct eth_device *dev, volatile void *packet, int length) +{ + volatile struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase; + struct ftmac100_data *priv = dev->priv; + volatile struct ftmac100_txdes *curr_des = priv->txdes; + int tmo; + + if (curr_des->txdes0 & FTMAC100_TXDES0_TXPKT_TXDMA_OWN) { + debug ("%s(): no TX descriptor available\n", __func__); + return -1; + } + + debug ("%s(%x, %x)\n", __func__, (int)packet, length); + + length = (length < 64) ? 64 : length; + + /* initiate a transmit sequence */ + + curr_des->txdes2 = (unsigned int)packet; /* TXBUF_BADR */ + + curr_des->txdes1 &= FTMAC100_TXDES1_EDOTR; + curr_des->txdes1 |= FTMAC100_TXDES1_FTS | + FTMAC100_TXDES1_LTS | + FTMAC100_TXDES1_TXBUF_SIZE (length); + + curr_des->txdes0 = FTMAC100_TXDES0_TXPKT_TXDMA_OWN; + + /* start transmit */ + + writel (1, &ftmac100->txpd); + + /* wait for transfer to succeed */ + + tmo = get_timer (0) + 5 * CONFIG_SYS_HZ; + while (curr_des->txdes0 & FTMAC100_TXDES0_TXPKT_TXDMA_OWN) { + if (get_timer (0) >= tmo) { + debug ("%s(): timed out\n", __func__); + return -1; + } + } + + debug ("%s(): packet sent\n", __func__); + + return 0; +} + +int ftmac100_initialize (bd_t * bd) +{ + struct eth_device *dev; + struct ftmac100_data *priv; + + if (!(dev = malloc (sizeof *dev))) { + printf ("%s(): failed to allocate dev\n", __func__); + goto out; + } + + /* Transmit and receive descriptors should align to 16 bytes */ + + if (!(priv = memalign (16, sizeof (struct ftmac100_data)))) { + printf ("%s(): failed to allocate priv\n", __func__); + goto free_dev; + } + + memset (dev, 0, sizeof (*dev)); + memset (priv, 0, sizeof (*priv)); + + sprintf (dev->name, "FTMAC100"); + dev->iobase = CONFIG_SYS_MAC100_BASE; + dev->init = ftmac100_init; + dev->halt = ftmac100_halt; + dev->send = ftmac100_send; + dev->recv = ftmac100_recv; + dev->priv = priv; + + eth_register (dev); + + return 1; + +free_dev: + free (dev); +out: + return 0; +} diff --git a/drivers/net/ftmac100.h b/drivers/net/ftmac100.h new file mode 100644 index 0000000..49c508e --- /dev/null +++ b/drivers/net/ftmac100.h @@ -0,0 +1,154 @@ +/* + * Faraday FTMAC100 Ethernet + * + * (C) Copyright 2009 Faraday Technology + * Po-Yu Chuang ratbert@faraday-tech.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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef __FTMAC100_H +#define __FTMAC100_H + +struct ftmac100 { + unsigned int isr; /* 0x00 */ + unsigned int imr; /* 0x04 */ + unsigned int mac_madr; /* 0x08 */ + unsigned int mac_ladr; /* 0x0c */ + unsigned int maht0; /* 0x10 */ + unsigned int maht1; /* 0x14 */ + unsigned int txpd; /* 0x18 */ + unsigned int rxpd; /* 0x1c */ + unsigned int txr_badr; /* 0x20 */ + unsigned int rxr_badr; /* 0x24 */ + unsigned int itc; /* 0x28 */ + unsigned int aptc; /* 0x2c */ + unsigned int dblac; /* 0x30 */ + unsigned int pad1[3]; /* 0x34 - 0x3c */ + unsigned int pad2[16]; /* 0x40 - 0x7c */ + unsigned int pad3[2]; /* 0x80 - 0x84 */ + unsigned int maccr; /* 0x88 */ + unsigned int macsr; /* 0x8c */ + unsigned int phycr; /* 0x90 */ + unsigned int phywdata; /* 0x94 */ + unsigned int fcr; /* 0x98 */ + unsigned int bpr; /* 0x9c */ + unsigned int pad4[8]; /* 0xa0 - 0xbc */ + unsigned int pad5; /* 0xc0 */ + unsigned int ts; /* 0xc4 */ + unsigned int dmafifos; /* 0xc8 */ + unsigned int tm; /* 0xcc */ + unsigned int pad6; /* 0xd0 */ + unsigned int tx_mcol_scol; /* 0xd4 */ + unsigned int rpf_aep; /* 0xd8 */ + unsigned int xm_pg; /* 0xdc */ + unsigned int runt_tlcc; /* 0xe0 */ + unsigned int crcer_ftl; /* 0xe4 */ + unsigned int rlc_rcc; /* 0xe8 */ + unsigned int broc; /* 0xec */ + unsigned int mulca; /* 0xf0 */ + unsigned int rp; /* 0xf4 */ + unsigned int xp; /* 0xf8 */ +}; + +/* + * Interrupt status register & interrupt mask register + */ +#define FTMAC100_INT_RPKT_FINISH (1 << 0) +#define FTMAC100_INT_NORXBUF (1 << 1) +#define FTMAC100_INT_XPKT_FINISH (1 << 2) +#define FTMAC100_INT_NOTXBUF (1 << 3) +#define FTMAC100_INT_XPKT_OK (1 << 4) +#define FTMAC100_INT_XPKT_LOST (1 << 5) +#define FTMAC100_INT_RPKT_SAV (1 << 6) +#define FTMAC100_INT_RPKT_LOST (1 << 7) +#define FTMAC100_INT_AHB_ERR (1 << 8) +#define FTMAC100_INT_PHYSTS_CHG (1 << 9) + +/* + * Automatic polling timer control register + */ +#define FTMAC100_APTC_RXPOLL_CNT(x) (((x) & 0xf) << 0) +#define FTMAC100_APTC_RXPOLL_TIME_SEL (1 << 4) +#define FTMAC100_APTC_TXPOLL_CNT(x) (((x) & 0xf) << 8) +#define FTMAC100_APTC_TXPOLL_TIME_SEL (1 << 12) + +/* + * MAC control register + */ +#define FTMAC100_MACCR_XDMA_EN (1 << 0) +#define FTMAC100_MACCR_RDMA_EN (1 << 1) +#define FTMAC100_MACCR_SW_RST (1 << 2) +#define FTMAC100_MACCR_LOOP_EN (1 << 3) +#define FTMAC100_MACCR_CRC_DIS (1 << 4) +#define FTMAC100_MACCR_XMT_EN (1 << 5) +#define FTMAC100_MACCR_ENRX_IN_HALFTX (1 << 6) +#define FTMAC100_MACCR_RCV_EN (1 << 8) +#define FTMAC100_MACCR_HT_MULTI_EN (1 << 9) +#define FTMAC100_MACCR_RX_RUNT (1 << 10) +#define FTMAC100_MACCR_RX_FTL (1 << 11) +#define FTMAC100_MACCR_RCV_ALL (1 << 12) +#define FTMAC100_MACCR_CRC_APD (1 << 14) +#define FTMAC100_MACCR_FULLDUP (1 << 15) +#define FTMAC100_MACCR_RX_MULTIPKT (1 << 16) +#define FTMAC100_MACCR_RX_BROADPKT (1 << 17) + +/* + * Transmit descriptor, aligned to 16 bytes + */ +struct ftmac100_txdes { + unsigned int txdes0; + unsigned int txdes1; + unsigned int txdes2; /* TXBUF_BADR */ + unsigned int txdes3; /* not used by HW */ +} __attribute__ ((aligned(16))); + +#define FTMAC100_TXDES0_TXPKT_LATECOL (1 << 0) +#define FTMAC100_TXDES0_TXPKT_EXSCOL (1 << 1) +#define FTMAC100_TXDES0_TXPKT_TXDMA_OWN (1 << 31) + +#define FTMAC100_TXDES1_TXBUF_SIZE(x) ((x) & 0x7ff) +#define FTMAC100_TXDES1_LTS (1 << 27) +#define FTMAC100_TXDES1_FTS (1 << 28) +#define FTMAC100_TXDES1_TX2FIC (1 << 29) +#define FTMAC100_TXDES1_TXIC (1 << 30) +#define FTMAC100_TXDES1_EDOTR (1 << 31) + +/* + * Receive descriptor, aligned to 16 bytes + */ +struct ftmac100_rxdes { + unsigned int rxdes0; + unsigned int rxdes1; + unsigned int rxdes2; /* RXBUF_BADR */ + unsigned int rxdes3; /* not used by HW */ +} __attribute__ ((aligned(16))); + +#define FTMAC100_RXDES0_RFL(des) ((des) & 0x7ff) +#define FTMAC100_RXDES0_MULTICAST (1 << 16) +#define FTMAC100_RXDES0_BROADCAST (1 << 17) +#define FTMAC100_RXDES0_RX_ERR (1 << 18) +#define FTMAC100_RXDES0_CRC_ERR (1 << 19) +#define FTMAC100_RXDES0_FTL (1 << 20) +#define FTMAC100_RXDES0_RUNT (1 << 21) +#define FTMAC100_RXDES0_RX_ODD_NB (1 << 22) +#define FTMAC100_RXDES0_LRS (1 << 28) +#define FTMAC100_RXDES0_FRS (1 << 29) +#define FTMAC100_RXDES0_RXDMA_OWN (1 << 31) + +#define FTMAC100_RXDES1_RXBUF_SIZE(x) ((x) & 0x7ff) +#define FTMAC100_RXDES1_EDORR (1 << 31) + +#endif /* __FTMAC100_H */ diff --git a/include/netdev.h b/include/netdev.h index aed5c4c..88e286f 100644 --- a/include/netdev.h +++ b/include/netdev.h @@ -50,6 +50,7 @@ int e1000_initialize(bd_t *bis); int eepro100_initialize(bd_t *bis); int eth_3com_initialize (bd_t * bis); int fec_initialize (bd_t *bis); +int ftmac100_initialize(bd_t *bits); int greth_initialize(bd_t *bis); void gt6426x_eth_initialize(bd_t *bis); int inca_switch_initialize(bd_t *bis);