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path: root/drivers/net/plb2800_eth.c
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Diffstat (limited to 'drivers/net/plb2800_eth.c')
-rw-r--r--drivers/net/plb2800_eth.c373
1 files changed, 0 insertions, 373 deletions
diff --git a/drivers/net/plb2800_eth.c b/drivers/net/plb2800_eth.c
deleted file mode 100644
index f869514..0000000
--- a/drivers/net/plb2800_eth.c
+++ /dev/null
@@ -1,373 +0,0 @@
-/*
- * PLB2800 internal switch ethernet driver.
- *
- * (C) Copyright 2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <malloc.h>
-#include <net.h>
-#include <netdev.h>
-#include <asm/addrspace.h>
-
-
-#define NUM_RX_DESC PKTBUFSRX
-#define TOUT_LOOP 1000000
-
-#define LONG_REF(addr) (*((volatile unsigned long*)addr))
-
-#define CMAC_CRX_CTRL LONG_REF(0xb800c870)
-#define CMAC_CTX_CTRL LONG_REF(0xb800c874)
-#define SYS_MAC_ADDR_0 LONG_REF(0xb800c878)
-#define SYS_MAC_ADDR_1 LONG_REF(0xb800c87c)
-#define MIPS_H_MASK LONG_REF(0xB800C810)
-
-#define MA_LEARN LONG_REF(0xb8008004)
-#define DA_LOOKUP LONG_REF(0xb8008008)
-
-#define CMAC_CRX_CTRL_PD 0x00000001
-#define CMAC_CRX_CTRL_CG 0x00000002
-#define CMAC_CRX_CTRL_PL_SHIFT 2
-#define CMAC_CRIT 0x0
-#define CMAC_NON_CRIT 0x1
-#define MBOX_STAT_ID_SHF 28
-#define MBOX_STAT_CP 0x80000000
-#define MBOX_STAT_MB 0x00000001
-#define EN_MA_LEARN 0x02000000
-#define EN_DA_LKUP 0x01000000
-#define MA_DEST_SHF 11
-#define DA_DEST_SHF 11
-#define DA_STATE_SHF 19
-#define TSTAMP_MS 0x00000000
-#define SW_H_MBOX4_MASK 0x08000000
-#define SW_H_MBOX3_MASK 0x04000000
-#define SW_H_MBOX2_MASK 0x02000000
-#define SW_H_MBOX1_MASK 0x01000000
-
-typedef volatile struct {
- unsigned int stat;
- unsigned int cmd;
- unsigned int cnt;
- unsigned int adr;
-} mailbox_t;
-
-#define MBOX_REG(mb) ((mailbox_t*)(0xb800c830+(mb<<4)))
-
-typedef volatile struct {
- unsigned int word0;
- unsigned int word1;
- unsigned int word2;
-} mbhdr_t;
-
-#define MBOX_MEM(mb) ((void*)(0xb800a000+((3-mb)<<11)))
-
-
-static int plb2800_eth_init(struct eth_device *dev, bd_t * bis);
-static int plb2800_eth_send(struct eth_device *dev, void *packet, int length);
-static int plb2800_eth_recv(struct eth_device *dev);
-static void plb2800_eth_halt(struct eth_device *dev);
-
-static void plb2800_set_mac_addr(struct eth_device *dev, unsigned char * addr);
-static unsigned char * plb2800_get_mac_addr(void);
-
-static int rx_new;
-static int mac_addr_set = 0;
-
-
-int plb2800_eth_initialize(bd_t * bis)
-{
- struct eth_device *dev;
- ulong temp;
-
-#ifdef DEBUG
- printf("Entered plb2800_eth_initialize()\n");
-#endif
-
- if (!(dev = (struct eth_device *) malloc (sizeof *dev)))
- {
- printf("Failed to allocate memory\n");
- return -1;
- }
- memset(dev, 0, sizeof(*dev));
-
- sprintf(dev->name, "PLB2800 Switch");
- dev->init = plb2800_eth_init;
- dev->halt = plb2800_eth_halt;
- dev->send = plb2800_eth_send;
- dev->recv = plb2800_eth_recv;
-
- eth_register(dev);
-
- /* bug fix */
- *(ulong *)0xb800e800 = 0x838;
-
- /* Set MBOX ownership */
- temp = CMAC_CRIT << MBOX_STAT_ID_SHF;
- MBOX_REG(0)->stat = temp;
- MBOX_REG(1)->stat = temp;
-
- temp = CMAC_NON_CRIT << MBOX_STAT_ID_SHF;
- MBOX_REG(2)->stat = temp;
- MBOX_REG(3)->stat = temp;
-
- plb2800_set_mac_addr(dev, plb2800_get_mac_addr());
-
- /* Disable all Mbox interrupt */
- temp = MIPS_H_MASK;
- temp &= ~ (SW_H_MBOX1_MASK | SW_H_MBOX2_MASK | SW_H_MBOX3_MASK | SW_H_MBOX4_MASK) ;
- MIPS_H_MASK = temp;
-
-#ifdef DEBUG
- printf("Leaving plb2800_eth_initialize()\n");
-#endif
-
- return 0;
-}
-
-static int plb2800_eth_init(struct eth_device *dev, bd_t * bis)
-{
-#ifdef DEBUG
- printf("Entering plb2800_eth_init()\n");
-#endif
-
- plb2800_set_mac_addr(dev, dev->enetaddr);
-
- rx_new = 0;
-
-#ifdef DEBUG
- printf("Leaving plb2800_eth_init()\n");
-#endif
-
- return 0;
-}
-
-
-static int plb2800_eth_send(struct eth_device *dev, void *packet, int length)
-{
- int i;
- int res = -1;
- u32 temp;
- mailbox_t * mb = MBOX_REG(0);
- char * mem = MBOX_MEM(0);
-
-#ifdef DEBUG
- printf("Entered plb2800_eth_send()\n");
-#endif
-
- if (length <= 0)
- {
- printf ("%s: bad packet size: %d\n", dev->name, length);
- goto Done;
- }
-
- if (length < 64)
- {
- length = 64;
- }
-
- temp = CMAC_CRX_CTRL_CG | ((length + 4) << CMAC_CRX_CTRL_PL_SHIFT);
-
-#ifdef DEBUG
- printf("0 mb->stat = 0x%x\n", mb->stat);
-#endif
-
- for(i = 0; mb->stat & (MBOX_STAT_CP | MBOX_STAT_MB); i++)
- {
- if (i >= TOUT_LOOP)
- {
- printf("%s: tx buffer not ready\n", dev->name);
- printf("1 mb->stat = 0x%x\n", mb->stat);
- goto Done;
- }
- }
-
- /* For some strange reason, memcpy doesn't work, here!
- */
- do
- {
- int words = (length >> 2) + 1;
- unsigned int* dst = (unsigned int*)(mem);
- unsigned int* src = (unsigned int*)(packet);
- for (i = 0; i < words; i++)
- {
- *dst = *src;
- dst++;
- src++;
- };
- } while(0);
-
- CMAC_CRX_CTRL = temp;
- mb->cmd = MBOX_STAT_CP;
-
-#ifdef DEBUG
- printf("2 mb->stat = 0x%x\n", mb->stat);
-#endif
-
- res = length;
-Done:
-
-#ifdef DEBUG
- printf("Leaving plb2800_eth_send()\n");
-#endif
-
- return res;
-}
-
-
-static int plb2800_eth_recv(struct eth_device *dev)
-{
- int length = 0;
- mailbox_t * mbox = MBOX_REG(3);
- unsigned char * hdr = MBOX_MEM(3);
- unsigned int stat;
-
-#ifdef DEBUG
- printf("Entered plb2800_eth_recv()\n");
-#endif
-
- for (;;)
- {
- stat = mbox->stat;
-
- if (!(stat & MBOX_STAT_CP))
- {
- break;
- }
-
- length = ((*(hdr + 6) & 0x3f) << 8) + *(hdr + 7);
- memcpy((void *)NetRxPackets[rx_new], hdr + 12, length);
-
- stat &= ~MBOX_STAT_CP;
- mbox->stat = stat;
-#ifdef DEBUG
- {
- int i;
- for (i=0;i<length - 4;i++)
- {
- if (i % 16 == 0) printf("\n%04x: ", i);
- printf("%02X ", NetRxPackets[rx_new][i]);
- }
- printf("\n");
- }
-#endif
-
- if (length)
- {
-#ifdef DEBUG
- printf("Received %d bytes\n", length);
-#endif
- NetReceive((void*)(NetRxPackets[rx_new]),
- length - 4);
- }
- else
- {
-#if 1
- printf("Zero length!!!\n");
-#endif
- }
-
- rx_new = (rx_new + 1) % NUM_RX_DESC;
- }
-
-#ifdef DEBUG
- printf("Leaving plb2800_eth_recv()\n");
-#endif
-
- return length;
-}
-
-
-static void plb2800_eth_halt(struct eth_device *dev)
-{
-#ifdef DEBUG
- printf("Entered plb2800_eth_halt()\n");
-#endif
-
-#ifdef DEBUG
- printf("Leaving plb2800_eth_halt()\n");
-#endif
-}
-
-static void plb2800_set_mac_addr(struct eth_device *dev, unsigned char * addr)
-{
- char packet[60];
- ulong temp;
- int ix;
-
- if (mac_addr_set ||
- NULL == addr || memcmp(addr, "\0\0\0\0\0\0", 6) == 0)
- {
- return;
- }
-
- /* send one packet through CPU port
- * in order to learn system MAC address
- */
-
- /* Set DA_LOOKUP register */
- temp = EN_MA_LEARN | (0 << DA_STATE_SHF) | (63 << DA_DEST_SHF);
- DA_LOOKUP = temp;
-
- /* Set MA_LEARN register */
- temp = 50 << MA_DEST_SHF; /* static entry */
- MA_LEARN = temp;
-
- /* set destination address */
- for (ix=0;ix<6;ix++)
- packet[ix] = 0xff;
-
- /* set source address = system MAC address */
- for (ix=0;ix<6;ix++)
- packet[6+ix] = addr[ix];
-
- /* set type field */
- packet[12]=0xaa;
- packet[13]=0x55;
-
- /* set data field */
- for(ix=14;ix<60;ix++)
- packet[ix] = 0x00;
-
-#ifdef DEBUG
- for (ix=0;ix<6;ix++)
- printf("mac_addr[%d]=%02X\n", ix, (unsigned char)packet[6+ix]);
-#endif
-
- /* set one packet */
- plb2800_eth_send(dev, packet, sizeof(packet));
-
- /* delay for a while */
- for(ix=0;ix<65535;ix++)
- temp = ~temp;
-
- /* Set CMAC_CTX_CTRL register */
- temp = TSTAMP_MS; /* no autocast */
- CMAC_CTX_CTRL = temp;
-
- /* Set DA_LOOKUP register */
- temp = EN_DA_LKUP;
- DA_LOOKUP = temp;
-
- mac_addr_set = 1;
-}
-
-static unsigned char * plb2800_get_mac_addr(void)
-{
- static unsigned char addr[6];
- char *tmp, *end;
- int i;
-
- tmp = getenv ("ethaddr");
- if (NULL == tmp) return NULL;
-
- for (i=0; i<6; i++) {
- addr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
- if (tmp)
- tmp = (*end) ? end+1 : end;
- }
-
- return addr;
-}
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