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
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
282 lines
7.7 KiB
282 lines
7.7 KiB
/*
|
|
* Realtek 8019AS Ethernet
|
|
* (C) Copyright 2002-2003
|
|
* Xue Ligong(lgxue@hotmail.com),Wang Kehao, ESLAB, whut.edu.cn
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
/*
|
|
* This code works in 8bit mode.
|
|
* If you need to work in 16bit mode, PLS change it!
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include "rtl8019.h"
|
|
#include <net.h>
|
|
|
|
#ifdef CONFIG_DRIVER_RTL8019
|
|
|
|
#if (CONFIG_COMMANDS & CFG_CMD_NET) || defined(CONFIG_CMD_NET)
|
|
|
|
|
|
/* packet page register access functions */
|
|
|
|
|
|
static unsigned char get_reg (unsigned int regno)
|
|
{
|
|
return (*(unsigned char *) regno);
|
|
}
|
|
|
|
|
|
static void put_reg (unsigned int regno, unsigned char val)
|
|
{
|
|
*(volatile unsigned char *) regno = val;
|
|
}
|
|
|
|
static void eth_reset (void)
|
|
{
|
|
unsigned char ucTemp;
|
|
|
|
/* reset NIC */
|
|
ucTemp = get_reg (RTL8019_RESET);
|
|
put_reg (RTL8019_RESET, ucTemp);
|
|
put_reg (RTL8019_INTERRUPTSTATUS, 0xff);
|
|
udelay (2000); /* wait for 2ms */
|
|
}
|
|
|
|
void rtl8019_get_enetaddr (uchar * addr)
|
|
{
|
|
unsigned char i;
|
|
unsigned char temp;
|
|
|
|
eth_reset ();
|
|
|
|
put_reg (RTL8019_COMMAND, RTL8019_REMOTEDMARD);
|
|
put_reg (RTL8019_DATACONFIGURATION, 0x48);
|
|
put_reg (RTL8019_REMOTESTARTADDRESS0, 0x00);
|
|
put_reg (RTL8019_REMOTESTARTADDRESS1, 0x00);
|
|
put_reg (RTL8019_REMOTEBYTECOUNT0, 12);
|
|
put_reg (RTL8019_REMOTEBYTECOUNT1, 0x00);
|
|
put_reg (RTL8019_COMMAND, RTL8019_REMOTEDMARD);
|
|
printf ("MAC: ");
|
|
for (i = 0; i < 6; i++) {
|
|
temp = get_reg (RTL8019_DMA_DATA);
|
|
*addr++ = temp;
|
|
temp = get_reg (RTL8019_DMA_DATA);
|
|
printf ("%x:", temp);
|
|
}
|
|
|
|
while ((!get_reg (RTL8019_INTERRUPTSTATUS) & 0x40));
|
|
printf ("\b \n");
|
|
put_reg (RTL8019_REMOTEBYTECOUNT0, 0x00);
|
|
put_reg (RTL8019_REMOTEBYTECOUNT1, 0x00);
|
|
put_reg (RTL8019_COMMAND, RTL8019_PAGE0);
|
|
}
|
|
|
|
|
|
void eth_halt (void)
|
|
{
|
|
put_reg (RTL8019_COMMAND, 0x01);
|
|
}
|
|
|
|
int eth_init (bd_t * bd)
|
|
{
|
|
eth_reset ();
|
|
put_reg (RTL8019_COMMAND, RTL8019_PAGE0STOP);
|
|
put_reg (RTL8019_DATACONFIGURATION, 0x48);
|
|
put_reg (RTL8019_REMOTEBYTECOUNT0, 0x00);
|
|
put_reg (RTL8019_REMOTEBYTECOUNT1, 0x00);
|
|
put_reg (RTL8019_RECEIVECONFIGURATION, 0x00); /*00; */
|
|
put_reg (RTL8019_TRANSMITPAGE, RTL8019_TPSTART);
|
|
put_reg (RTL8019_TRANSMITCONFIGURATION, 0x02);
|
|
put_reg (RTL8019_PAGESTART, RTL8019_PSTART);
|
|
put_reg (RTL8019_BOUNDARY, RTL8019_PSTART);
|
|
put_reg (RTL8019_PAGESTOP, RTL8019_PSTOP);
|
|
put_reg (RTL8019_INTERRUPTSTATUS, 0xff);
|
|
put_reg (RTL8019_INTERRUPTMASK, 0x11); /*b; */
|
|
put_reg (RTL8019_COMMAND, RTL8019_PAGE1STOP);
|
|
put_reg (RTL8019_PHYSICALADDRESS0, bd->bi_enetaddr[0]);
|
|
put_reg (RTL8019_PHYSICALADDRESS1, bd->bi_enetaddr[1]);
|
|
put_reg (RTL8019_PHYSICALADDRESS2, bd->bi_enetaddr[2]);
|
|
put_reg (RTL8019_PHYSICALADDRESS3, bd->bi_enetaddr[3]);
|
|
put_reg (RTL8019_PHYSICALADDRESS4, bd->bi_enetaddr[4]);
|
|
put_reg (RTL8019_PHYSICALADDRESS5, bd->bi_enetaddr[5]);
|
|
put_reg (RTL8019_MULTIADDRESS0, 0x00);
|
|
put_reg (RTL8019_MULTIADDRESS1, 0x00);
|
|
put_reg (RTL8019_MULTIADDRESS2, 0x00);
|
|
put_reg (RTL8019_MULTIADDRESS3, 0x00);
|
|
put_reg (RTL8019_MULTIADDRESS4, 0x00);
|
|
put_reg (RTL8019_MULTIADDRESS5, 0x00);
|
|
put_reg (RTL8019_MULTIADDRESS6, 0x00);
|
|
put_reg (RTL8019_MULTIADDRESS7, 0x00);
|
|
put_reg (RTL8019_CURRENT, RTL8019_PSTART);
|
|
put_reg (RTL8019_COMMAND, RTL8019_PAGE0);
|
|
put_reg (RTL8019_TRANSMITCONFIGURATION, 0xe0); /*58; */
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static unsigned char nic_to_pc (void)
|
|
{
|
|
unsigned char rec_head_status;
|
|
unsigned char next_packet_pointer;
|
|
unsigned char packet_length0;
|
|
unsigned char packet_length1;
|
|
unsigned short rxlen = 0;
|
|
unsigned int i = 4;
|
|
unsigned char current_point;
|
|
unsigned char *addr;
|
|
|
|
/*
|
|
* The RTL8019's first 4B is packet status,page of next packet
|
|
* and packet length(2B).So we receive the fist 4B.
|
|
*/
|
|
put_reg (RTL8019_REMOTESTARTADDRESS1, get_reg (RTL8019_BOUNDARY));
|
|
put_reg (RTL8019_REMOTESTARTADDRESS0, 0x00);
|
|
put_reg (RTL8019_REMOTEBYTECOUNT1, 0x00);
|
|
put_reg (RTL8019_REMOTEBYTECOUNT0, 0x04);
|
|
|
|
put_reg (RTL8019_COMMAND, RTL8019_REMOTEDMARD);
|
|
|
|
rec_head_status = get_reg (RTL8019_DMA_DATA);
|
|
next_packet_pointer = get_reg (RTL8019_DMA_DATA);
|
|
packet_length0 = get_reg (RTL8019_DMA_DATA);
|
|
packet_length1 = get_reg (RTL8019_DMA_DATA);
|
|
|
|
put_reg (RTL8019_COMMAND, RTL8019_PAGE0);
|
|
/*Packet length is in two 8bit registers */
|
|
rxlen = packet_length1;
|
|
rxlen = (((rxlen << 8) & 0xff00) + packet_length0);
|
|
rxlen -= 4;
|
|
|
|
if (rxlen > PKTSIZE_ALIGN + PKTALIGN)
|
|
printf ("packet too big!\n");
|
|
|
|
/*Receive the packet */
|
|
put_reg (RTL8019_REMOTESTARTADDRESS0, 0x04);
|
|
put_reg (RTL8019_REMOTESTARTADDRESS1, get_reg (RTL8019_BOUNDARY));
|
|
|
|
put_reg (RTL8019_REMOTEBYTECOUNT0, (rxlen & 0xff));
|
|
put_reg (RTL8019_REMOTEBYTECOUNT1, ((rxlen >> 8) & 0xff));
|
|
|
|
|
|
put_reg (RTL8019_COMMAND, RTL8019_REMOTEDMARD);
|
|
|
|
for (addr = (unsigned char *) NetRxPackets[0], i = rxlen; i > 0; i--)
|
|
*addr++ = get_reg (RTL8019_DMA_DATA);
|
|
/* Pass the packet up to the protocol layers. */
|
|
NetReceive (NetRxPackets[0], rxlen);
|
|
|
|
while (!(get_reg (RTL8019_INTERRUPTSTATUS)) & 0x40); /* wait for the op. */
|
|
|
|
/*
|
|
* To test whether the packets are all received,get the
|
|
* location of current point
|
|
*/
|
|
put_reg (RTL8019_COMMAND, RTL8019_PAGE1);
|
|
current_point = get_reg (RTL8019_CURRENT);
|
|
put_reg (RTL8019_COMMAND, RTL8019_PAGE0);
|
|
put_reg (RTL8019_BOUNDARY, next_packet_pointer);
|
|
return current_point;
|
|
}
|
|
|
|
/* Get a data block via Ethernet */
|
|
extern int eth_rx (void)
|
|
{
|
|
unsigned char temp, current_point;
|
|
|
|
put_reg (RTL8019_COMMAND, RTL8019_PAGE0);
|
|
|
|
while (1) {
|
|
temp = get_reg (RTL8019_INTERRUPTSTATUS);
|
|
|
|
if (temp & 0x90) {
|
|
/*overflow */
|
|
put_reg (RTL8019_COMMAND, RTL8019_PAGE0STOP);
|
|
udelay (2000);
|
|
put_reg (RTL8019_REMOTEBYTECOUNT0, 0);
|
|
put_reg (RTL8019_REMOTEBYTECOUNT1, 0);
|
|
put_reg (RTL8019_TRANSMITCONFIGURATION, 2);
|
|
do {
|
|
current_point = nic_to_pc ();
|
|
} while (get_reg (RTL8019_BOUNDARY) != current_point);
|
|
|
|
put_reg (RTL8019_TRANSMITCONFIGURATION, 0xe0);
|
|
}
|
|
|
|
if (temp & 0x1) {
|
|
/*packet received */
|
|
do {
|
|
put_reg (RTL8019_INTERRUPTSTATUS, 0x01);
|
|
current_point = nic_to_pc ();
|
|
} while (get_reg (RTL8019_BOUNDARY) != current_point);
|
|
}
|
|
|
|
if (!(temp & 0x1))
|
|
return 0;
|
|
/* done and exit. */
|
|
}
|
|
}
|
|
|
|
/* Send a data block via Ethernet. */
|
|
extern int eth_send (volatile void *packet, int length)
|
|
{
|
|
volatile unsigned char *p;
|
|
unsigned int pn;
|
|
|
|
pn = length;
|
|
p = (volatile unsigned char *) packet;
|
|
|
|
while (get_reg (RTL8019_COMMAND) == RTL8019_TRANSMIT);
|
|
|
|
put_reg (RTL8019_REMOTESTARTADDRESS0, 0);
|
|
put_reg (RTL8019_REMOTESTARTADDRESS1, RTL8019_TPSTART);
|
|
put_reg (RTL8019_REMOTEBYTECOUNT0, (pn & 0xff));
|
|
put_reg (RTL8019_REMOTEBYTECOUNT1, ((pn >> 8) & 0xff));
|
|
|
|
put_reg (RTL8019_COMMAND, RTL8019_REMOTEDMAWR);
|
|
while (pn > 0) {
|
|
put_reg (RTL8019_DMA_DATA, *p++);
|
|
pn--;
|
|
}
|
|
|
|
pn = length;
|
|
|
|
while (pn < 60) { /*Padding */
|
|
put_reg (RTL8019_DMA_DATA, 0);
|
|
pn++;
|
|
}
|
|
|
|
while (!(get_reg (RTL8019_INTERRUPTSTATUS)) & 0x40);
|
|
|
|
put_reg (RTL8019_INTERRUPTSTATUS, 0x40);
|
|
put_reg (RTL8019_TRANSMITPAGE, RTL8019_TPSTART);
|
|
put_reg (RTL8019_TRANSMITBYTECOUNT0, (pn & 0xff));
|
|
put_reg (RTL8019_TRANSMITBYTECOUNT1, ((pn >> 8 & 0xff)));
|
|
put_reg (RTL8019_COMMAND, RTL8019_TRANSMIT);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* COMMANDS & CFG_NET */
|
|
|
|
#endif /* CONFIG_DRIVER_RTL8019 */
|
|
|