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arm: A320: driver for FTMAC100 ethernet controller

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This patch adds an FTMAC100 ethernet driver for Faraday A320 evaluation board.

Signed-off-by: Po-Yu Chuang <ratbert@faraday-tech.com>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
master
Po-Yu Chuang 15 years ago committed by Ben Warren
parent eb1a4d0a47
commit 750326e5d5
4 changed files with 434 additions and 0 deletions
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  1. 1
      drivers/net/Makefile
  2. 278
      drivers/net/ftmac100.c
  3. 154
      drivers/net/ftmac100.h
  4. 1
      include/netdev.h

1
drivers/net/Makefile
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@ -39,6 +39,7 @@ COBJS-$(CONFIG_EEPRO100) += eepro100.o
COBJS-$(CONFIG_ENC28J60) += enc28j60.o
COBJS-$(CONFIG_FEC_MXC) += fec_mxc.o
COBJS-$(CONFIG_FSLDMAFEC) += fsl_mcdmafec.o mcfmii.o
COBJS-$(CONFIG_FTMAC100) += ftmac100.o
COBJS-$(CONFIG_GRETH) += greth.o
COBJS-$(CONFIG_INCA_IP_SWITCH) += inca-ip_sw.o
COBJS-$(CONFIG_KIRKWOOD_EGIGA) += kirkwood_egiga.o

278
drivers/net/ftmac100.c
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@ -0,0 +1,278 @@
/*
* 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.
*/
#include <config.h>
#include <common.h>
#include <malloc.h>
#include <net.h>
#include <asm/io.h>
#include "ftmac100.h"
#define ETH_ZLEN 60
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)
{
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)
{
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);
}
static void ftmac100_set_mac_from_env (struct eth_device *dev)
{
eth_getenv_enetaddr ("ethaddr", dev->enetaddr);
ftmac100_set_mac (dev, dev->enetaddr);
}
/*
* disable transmitter, receiver
*/
static void ftmac100_halt (struct eth_device *dev)
{
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)
{
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_from_env (dev);
/* 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)
{
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_TXDMA_OWN) {
debug ("%s(): no TX descriptor available\n", __func__);
return -1;
}
debug ("%s(%x, %x)\n", __func__, (int)packet, length);
length = (length < ETH_ZLEN) ? ETH_ZLEN : 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_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_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;
dev = malloc (sizeof *dev);
if (!dev) {
printf ("%s(): failed to allocate dev\n", __func__);
goto out;
}
/* Transmit and receive descriptors should align to 16 bytes */
priv = memalign (16, sizeof (struct ftmac100_data));
if (!priv) {
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_FTMAC100_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;
}

154
drivers/net/ftmac100.h
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@ -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_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 */

1
include/netdev.h
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@ -51,6 +51,7 @@ int eepro100_initialize(bd_t *bis);
int eth_3com_initialize (bd_t * bis);
int fec_initialize (bd_t *bis);
int fecmxc_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);

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