+++ /dev/null
-/*
- * DANUBE internal switch ethernet driver.
- *
- * (C) Copyright 2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * 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
- */
-
-
-#include <common.h>
-
-#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI) \
- && defined(CONFIG_DANUBE_SWITCH)
-
-#include <malloc.h>
-#include <net.h>
-#include <asm/danube.h>
-#include <asm/addrspace.h>
-#include <asm/pinstrap.h>
-
-#define MII_MODE 1
-#define REV_MII_MODE 2
-
-#define TX_CHAN_NO 7
-#define RX_CHAN_NO 6
-
-#define NUM_RX_DESC PKTBUFSRX
-#define NUM_TX_DESC 8
-#define MAX_PACKET_SIZE 1536
-#define TOUT_LOOP 100
-#define PHY0_ADDR 1 /*fixme: set the correct value here*/
-
-#define DMA_WRITE_REG(reg, value) *((volatile u32 *)reg) = (u32)value
-#define DMA_READ_REG(reg, value) value = (u32)*((volatile u32*)reg)
-
-#define SW_WRITE_REG(reg, value) *((volatile u32*)reg) = (u32)value
-#define SW_READ_REG(reg, value) value = (u32)*((volatile u32*)reg)
-
-typedef struct
-{
- union
- {
- struct
- {
- volatile u32 OWN :1;
- volatile u32 C :1;
- volatile u32 Sop :1;
- volatile u32 Eop :1;
- volatile u32 reserved :3;
- volatile u32 Byteoffset :2;
- volatile u32 reserve :7;
- volatile u32 DataLen :16;
- }field;
-
- volatile u32 word;
- }status;
-
- volatile u32 DataPtr;
-} danube_rx_descriptor_t;
-
-typedef struct
-{
- union
- {
- struct
- {
- volatile u32 OWN :1;
- volatile u32 C :1;
- volatile u32 Sop :1;
- volatile u32 Eop :1;
- volatile u32 Byteoffset :5;
- volatile u32 reserved :7;
- volatile u32 DataLen :16;
- }field;
-
- volatile u32 word;
- }status;
-
- volatile u32 DataPtr;
-} danube_tx_descriptor_t;
-
-
-
-
-static danube_rx_descriptor_t rx_des_ring[NUM_RX_DESC] __attribute__ ((aligned(8)));
-static danube_tx_descriptor_t tx_des_ring[NUM_TX_DESC] __attribute__ ((aligned(8)));
-static int tx_num, rx_num;
-
-int danube_switch_init(struct eth_device *dev, bd_t * bis);
-int danube_switch_send(struct eth_device *dev, volatile void *packet,int length);
-int danube_switch_recv(struct eth_device *dev);
-void danube_switch_halt(struct eth_device *dev);
-static void danube_init_switch_chip(int mode);
-static void danube_dma_init(void);
-
-
-
-int danube_switch_initialize(bd_t * bis)
-{
- struct eth_device *dev;
-
-#if 0
- printf("Entered danube_switch_initialize()\n");
-#endif
-
- if (!(dev = (struct eth_device *) malloc (sizeof *dev)))
- {
- printf("Failed to allocate memory\n");
- return 0;
- }
- memset(dev, 0, sizeof(*dev));
-
- danube_dma_init();
- danube_init_switch_chip(REV_MII_MODE);
-
-#ifdef CLK_OUT2_25MHZ
- *DANUBE_GPIO_P0_DIR=0x0000ae78;
- *DANUBE_GPIO_P0_ALTSEL0=0x00008078;
- //joelin for Mii-1 *DANUBE_GPIO_P0_ALTSEL1=0x80000080;
- *DANUBE_GPIO_P0_ALTSEL1=0x80000000; //joelin for Mii-1
- *DANUBE_CGU_IFCCR=0x00400010;
- *DANUBE_GPIO_P0_OD=0x0000ae78;
-#endif
-
- /*patch for 6996*/
-
- *DANUBE_RCU_RST_REQ |=1;
- mdelay(200);
- *DANUBE_RCU_RST_REQ &=(unsigned long)~1;
- mdelay(1);
- /*while(*DANUBE_PPE_ETOP_MDIO_ACC&0x80000000);
- *DANUBE_PPE_ETOP_MDIO_ACC =0x80123602;
- */
- /*while(*DANUBE_PPE_ETOP_MDIO_ACC&0x80000000);
- *DANUBE_PPE_ETOP_MDIO_ACC =0x80123602;
- */
- /***************/
- sprintf(dev->name, "danube Switch");
- dev->init = danube_switch_init;
- dev->halt = danube_switch_halt;
- dev->send = danube_switch_send;
- dev->recv = danube_switch_recv;
-
- eth_register(dev);
-
-#if 0
- printf("Leaving danube_switch_initialize()\n");
-#endif
- while(*DANUBE_PPE_ETOP_MDIO_ACC&0x80000000);
- *DANUBE_PPE_ETOP_MDIO_ACC =0x8001840F;
- while((*DANUBE_PPE_ETOP_MDIO_ACC)&0x80000000);
- *DANUBE_PPE_ETOP_MDIO_ACC =0x8003840F;
- while(*DANUBE_PPE_ETOP_MDIO_ACC&0x80000000);
- *DANUBE_PPE_ETOP_MDIO_ACC =0x8005840F;
- //while(*DANUBE_PPE_ETOP_MDIO_ACC&0x80000000);
- //*DANUBE_PPE_ETOP_MDIO_ACC =0x8006840F;
- while(*DANUBE_PPE_ETOP_MDIO_ACC&0x80000000);
- *DANUBE_PPE_ETOP_MDIO_ACC =0x8007840F;
- while(*DANUBE_PPE_ETOP_MDIO_ACC&0x80000000);
- *DANUBE_PPE_ETOP_MDIO_ACC =0x8008840F;
- while(*DANUBE_PPE_ETOP_MDIO_ACC&0x80000000);
- *DANUBE_PPE_ETOP_MDIO_ACC =0x8001840F;
- while(*DANUBE_PPE_ETOP_MDIO_ACC&0x80000000);
- *DANUBE_PPE_ETOP_MDIO_ACC =0x80123602;
-#ifdef CLK_OUT2_25MHZ
- while(*DANUBE_PPE_ETOP_MDIO_ACC&0x80000000);
- *DANUBE_PPE_ETOP_MDIO_ACC =0x80334000;
-#endif
-
- return 1;
-}
-
-int danube_switch_init(struct eth_device *dev, bd_t * bis)
-{
- int i;
-
- tx_num=0;
- rx_num=0;
-
- /* Reset DMA
- */
-// serial_puts("i \n\0");
-
- *DANUBE_DMA_CS=RX_CHAN_NO;
- *DANUBE_DMA_CCTRL=0x2;/*fix me, need to reset this channel first?*/
- *DANUBE_DMA_CPOLL= 0x80000040;
- /*set descriptor base*/
- *DANUBE_DMA_CDBA=(u32)rx_des_ring;
- *DANUBE_DMA_CDLEN=NUM_RX_DESC;
- *DANUBE_DMA_CIE = 0;
- *DANUBE_DMA_CCTRL=0x30000;
-
- *DANUBE_DMA_CS=TX_CHAN_NO;
- *DANUBE_DMA_CCTRL=0x2;/*fix me, need to reset this channel first?*/
- *DANUBE_DMA_CPOLL= 0x80000040;
- *DANUBE_DMA_CDBA=(u32)tx_des_ring;
- *DANUBE_DMA_CDLEN=NUM_TX_DESC;
- *DANUBE_DMA_CIE = 0;
- *DANUBE_DMA_CCTRL=0x30100;
-
- for(i=0;i < NUM_RX_DESC; i++)
- {
- danube_rx_descriptor_t * rx_desc = KSEG1ADDR(&rx_des_ring[i]);
- rx_desc->status.word=0;
- rx_desc->status.field.OWN=1;
- rx_desc->status.field.DataLen=PKTSIZE_ALIGN; /* 1536 */
- rx_desc->DataPtr=(u32)KSEG1ADDR(NetRxPackets[i]);
- }
-
- for(i=0;i < NUM_TX_DESC; i++)
- {
- danube_tx_descriptor_t * tx_desc = KSEG1ADDR(&tx_des_ring[i]);
- memset(tx_desc, 0, sizeof(tx_des_ring[0]));
- }
- /* turn on DMA rx & tx channel
- */
- *DANUBE_DMA_CS=RX_CHAN_NO;
- *DANUBE_DMA_CCTRL|=1;/*reset and turn on the channel*/
-
- return 0;
-}
-
-void danube_switch_halt(struct eth_device *dev)
-{
- int i;
- for(i=0;i<8;i++)
- {
- *DANUBE_DMA_CS=i;
- *DANUBE_DMA_CCTRL&=~1;/*stop the dma channel*/
- }
-// udelay(1000000);
-}
-
-int danube_switch_send(struct eth_device *dev, volatile void *packet,int length)
-{
-
- int i;
- int res = -1;
-
- danube_tx_descriptor_t * tx_desc= KSEG1ADDR(&tx_des_ring[tx_num]);
-
- if (length <= 0)
- {
- printf ("%s: bad packet size: %d\n", dev->name, length);
- goto Done;
- }
-
- for(i=0; tx_desc->status.field.OWN==1; i++)
- {
- if(i>=TOUT_LOOP)
- {
- printf("NO Tx Descriptor...");
- goto Done;
- }
- }
-
- //serial_putc('s');
-
- tx_desc->status.field.Sop=1;
- tx_desc->status.field.Eop=1;
- tx_desc->status.field.C=0;
- tx_desc->DataPtr = (u32)KSEG1ADDR(packet);
- if(length<60)
- tx_desc->status.field.DataLen = 60;
- else
- tx_desc->status.field.DataLen = (u32)length;
-
- asm("SYNC");
- tx_desc->status.field.OWN=1;
-
- res=length;
- tx_num++;
- if(tx_num==NUM_TX_DESC) tx_num=0;
- *DANUBE_DMA_CS=TX_CHAN_NO;
-
- if(!(*DANUBE_DMA_CCTRL & 1))
- *DANUBE_DMA_CCTRL|=1;
-
-Done:
- return res;
-}
-
-int danube_switch_recv(struct eth_device *dev)
-{
-
- int length = 0;
-
- danube_rx_descriptor_t * rx_desc;
- int anchor_num=0;
- int i;
- for (;;)
- {
- rx_desc = KSEG1ADDR(&rx_des_ring[rx_num]);
-
- if ((rx_desc->status.field.C == 0) || (rx_desc->status.field.OWN == 1))
- {
- break;
- }
-
-
- length = rx_desc->status.field.DataLen;
- if (length)
- {
- NetReceive((void*)KSEG1ADDR(NetRxPackets[rx_num]), length - 4);
- // serial_putc('*');
- }
- else
- {
- printf("Zero length!!!\n");
- }
-
- rx_desc->status.field.Sop=0;
- rx_desc->status.field.Eop=0;
- rx_desc->status.field.C=0;
- rx_desc->status.field.DataLen=PKTSIZE_ALIGN;
- rx_desc->status.field.OWN=1;
- rx_num++;
- if(rx_num==NUM_RX_DESC) rx_num=0;
-
- }
-
- return length;
-}
-
-
-static void danube_init_switch_chip(int mode)
-{
- int i;
- /*get and set mac address for MAC*/
- static unsigned char addr[6];
- char *tmp,*end;
- tmp = getenv ("ethaddr");
- if (NULL == tmp) {
- printf("Can't get environment ethaddr!!!\n");
- // return NULL;
- } else {
- printf("ethaddr=%s\n", tmp);
- }
- *DANUBE_PMU_PWDCR = *DANUBE_PMU_PWDCR & 0xFFFFEFDF;
- *DANUBE_PPE32_ETOP_MDIO_CFG &= ~0x6;
- *DANUBE_PPE32_ENET_MAC_CFG = 0x187;
-
- // turn on port0, set to rmii and turn off port1.
- if(mode==REV_MII_MODE)
- {
- *DANUBE_PPE32_ETOP_CFG = (*DANUBE_PPE32_ETOP_CFG & 0xfffffffc) | 0x0000000a;
- }
- else if (mode == MII_MODE)
- {
- *DANUBE_PPE32_ETOP_CFG = (*DANUBE_PPE32_ETOP_CFG & 0xfffffffc) | 0x00000008;
- }
-
- *DANUBE_PPE32_ETOP_IG_PLEN_CTRL = 0x4005ee; // set packetlen.
- *ENET_MAC_CFG|=1<<11;/*enable the crc*/
- return;
-}
-
-
-static void danube_dma_init(void)
-{
- int i;
-// serial_puts("d \n\0");
-
- *DANUBE_PMU_PWDCR &=~(1<<DANUBE_PMU_DMA_SHIFT);/*enable DMA from PMU*/
- /* Reset DMA
- */
- *DANUBE_DMA_CTRL|=1;
- *DANUBE_DMA_IRNEN=0;/*disable all the interrupts first*/
-
- /* Clear Interrupt Status Register
- */
- *DANUBE_DMA_IRNCR=0xfffff;
- /*disable all the dma interrupts*/
- *DANUBE_DMA_IRNEN=0;
- /*disable channel 0 and channel 1 interrupts*/
-
- *DANUBE_DMA_CS=RX_CHAN_NO;
- *DANUBE_DMA_CCTRL=0x2;/*fix me, need to reset this channel first?*/
- *DANUBE_DMA_CPOLL= 0x80000040;
- /*set descriptor base*/
- *DANUBE_DMA_CDBA=(u32)rx_des_ring;
- *DANUBE_DMA_CDLEN=NUM_RX_DESC;
- *DANUBE_DMA_CIE = 0;
- *DANUBE_DMA_CCTRL=0x30000;
-
- *DANUBE_DMA_CS=TX_CHAN_NO;
- *DANUBE_DMA_CCTRL=0x2;/*fix me, need to reset this channel first?*/
- *DANUBE_DMA_CPOLL= 0x80000040;
- *DANUBE_DMA_CDBA=(u32)tx_des_ring;
- *DANUBE_DMA_CDLEN=NUM_TX_DESC;
- *DANUBE_DMA_CIE = 0;
- *DANUBE_DMA_CCTRL=0x30100;
- /*enable the poll function and set the poll counter*/
- //*DANUBE_DMA_CPOLL=DANUBE_DMA_POLL_EN | (DANUBE_DMA_POLL_COUNT<<4);
- /*set port properties, enable endian conversion for switch*/
- *DANUBE_DMA_PS=0;
- *DANUBE_DMA_PCTRL|=0xf<<8;/*enable 32 bit endian conversion*/
-
- return;
-}
-
-
-
-
-
-#endif
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