mirror of
https://github.com/AsahiLinux/u-boot
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10cbe3b6a4
These are all the files which use the API incorrectly but did not get built using MAKEALL -a powerpc|arm. I have no compiler for them, but the remaining issues should be far less than without this patch. Any outstanding issues are left to the maintainers of boards that use these drivers. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
389 lines
8 KiB
C
389 lines
8 KiB
C
/*
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* PLB2800 internal switch ethernet driver.
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*
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* (C) Copyright 2003
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <malloc.h>
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#include <net.h>
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#include <netdev.h>
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#include <asm/addrspace.h>
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#define NUM_RX_DESC PKTBUFSRX
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#define TOUT_LOOP 1000000
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#define LONG_REF(addr) (*((volatile unsigned long*)addr))
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#define CMAC_CRX_CTRL LONG_REF(0xb800c870)
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#define CMAC_CTX_CTRL LONG_REF(0xb800c874)
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#define SYS_MAC_ADDR_0 LONG_REF(0xb800c878)
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#define SYS_MAC_ADDR_1 LONG_REF(0xb800c87c)
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#define MIPS_H_MASK LONG_REF(0xB800C810)
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#define MA_LEARN LONG_REF(0xb8008004)
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#define DA_LOOKUP LONG_REF(0xb8008008)
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#define CMAC_CRX_CTRL_PD 0x00000001
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#define CMAC_CRX_CTRL_CG 0x00000002
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#define CMAC_CRX_CTRL_PL_SHIFT 2
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#define CMAC_CRIT 0x0
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#define CMAC_NON_CRIT 0x1
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#define MBOX_STAT_ID_SHF 28
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#define MBOX_STAT_CP 0x80000000
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#define MBOX_STAT_MB 0x00000001
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#define EN_MA_LEARN 0x02000000
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#define EN_DA_LKUP 0x01000000
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#define MA_DEST_SHF 11
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#define DA_DEST_SHF 11
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#define DA_STATE_SHF 19
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#define TSTAMP_MS 0x00000000
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#define SW_H_MBOX4_MASK 0x08000000
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#define SW_H_MBOX3_MASK 0x04000000
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#define SW_H_MBOX2_MASK 0x02000000
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#define SW_H_MBOX1_MASK 0x01000000
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typedef volatile struct {
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unsigned int stat;
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unsigned int cmd;
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unsigned int cnt;
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unsigned int adr;
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} mailbox_t;
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#define MBOX_REG(mb) ((mailbox_t*)(0xb800c830+(mb<<4)))
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typedef volatile struct {
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unsigned int word0;
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unsigned int word1;
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unsigned int word2;
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} mbhdr_t;
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#define MBOX_MEM(mb) ((void*)(0xb800a000+((3-mb)<<11)))
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static int plb2800_eth_init(struct eth_device *dev, bd_t * bis);
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static int plb2800_eth_send(struct eth_device *dev, void *packet, int length);
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static int plb2800_eth_recv(struct eth_device *dev);
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static void plb2800_eth_halt(struct eth_device *dev);
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static void plb2800_set_mac_addr(struct eth_device *dev, unsigned char * addr);
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static unsigned char * plb2800_get_mac_addr(void);
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static int rx_new;
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static int mac_addr_set = 0;
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int plb2800_eth_initialize(bd_t * bis)
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{
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struct eth_device *dev;
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ulong temp;
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#ifdef DEBUG
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printf("Entered plb2800_eth_initialize()\n");
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#endif
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if (!(dev = (struct eth_device *) malloc (sizeof *dev)))
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{
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printf("Failed to allocate memory\n");
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return -1;
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}
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memset(dev, 0, sizeof(*dev));
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sprintf(dev->name, "PLB2800 Switch");
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dev->init = plb2800_eth_init;
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dev->halt = plb2800_eth_halt;
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dev->send = plb2800_eth_send;
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dev->recv = plb2800_eth_recv;
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eth_register(dev);
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/* bug fix */
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*(ulong *)0xb800e800 = 0x838;
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/* Set MBOX ownership */
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temp = CMAC_CRIT << MBOX_STAT_ID_SHF;
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MBOX_REG(0)->stat = temp;
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MBOX_REG(1)->stat = temp;
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temp = CMAC_NON_CRIT << MBOX_STAT_ID_SHF;
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MBOX_REG(2)->stat = temp;
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MBOX_REG(3)->stat = temp;
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plb2800_set_mac_addr(dev, plb2800_get_mac_addr());
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/* Disable all Mbox interrupt */
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temp = MIPS_H_MASK;
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temp &= ~ (SW_H_MBOX1_MASK | SW_H_MBOX2_MASK | SW_H_MBOX3_MASK | SW_H_MBOX4_MASK) ;
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MIPS_H_MASK = temp;
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#ifdef DEBUG
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printf("Leaving plb2800_eth_initialize()\n");
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#endif
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return 0;
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}
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static int plb2800_eth_init(struct eth_device *dev, bd_t * bis)
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{
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#ifdef DEBUG
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printf("Entering plb2800_eth_init()\n");
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#endif
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plb2800_set_mac_addr(dev, dev->enetaddr);
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rx_new = 0;
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#ifdef DEBUG
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printf("Leaving plb2800_eth_init()\n");
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#endif
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return 0;
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}
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static int plb2800_eth_send(struct eth_device *dev, void *packet, int length)
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{
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int i;
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int res = -1;
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u32 temp;
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mailbox_t * mb = MBOX_REG(0);
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char * mem = MBOX_MEM(0);
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#ifdef DEBUG
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printf("Entered plb2800_eth_send()\n");
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#endif
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if (length <= 0)
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{
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printf ("%s: bad packet size: %d\n", dev->name, length);
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goto Done;
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}
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if (length < 64)
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{
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length = 64;
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}
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temp = CMAC_CRX_CTRL_CG | ((length + 4) << CMAC_CRX_CTRL_PL_SHIFT);
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#ifdef DEBUG
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printf("0 mb->stat = 0x%x\n", mb->stat);
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#endif
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for(i = 0; mb->stat & (MBOX_STAT_CP | MBOX_STAT_MB); i++)
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{
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if (i >= TOUT_LOOP)
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{
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printf("%s: tx buffer not ready\n", dev->name);
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printf("1 mb->stat = 0x%x\n", mb->stat);
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goto Done;
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}
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}
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/* For some strange reason, memcpy doesn't work, here!
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*/
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do
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{
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int words = (length >> 2) + 1;
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unsigned int* dst = (unsigned int*)(mem);
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unsigned int* src = (unsigned int*)(packet);
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for (i = 0; i < words; i++)
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{
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*dst = *src;
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dst++;
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src++;
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};
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} while(0);
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CMAC_CRX_CTRL = temp;
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mb->cmd = MBOX_STAT_CP;
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#ifdef DEBUG
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printf("2 mb->stat = 0x%x\n", mb->stat);
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#endif
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res = length;
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Done:
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#ifdef DEBUG
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printf("Leaving plb2800_eth_send()\n");
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#endif
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return res;
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}
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static int plb2800_eth_recv(struct eth_device *dev)
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{
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int length = 0;
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mailbox_t * mbox = MBOX_REG(3);
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unsigned char * hdr = MBOX_MEM(3);
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unsigned int stat;
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#ifdef DEBUG
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printf("Entered plb2800_eth_recv()\n");
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#endif
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for (;;)
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{
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stat = mbox->stat;
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if (!(stat & MBOX_STAT_CP))
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{
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break;
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}
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length = ((*(hdr + 6) & 0x3f) << 8) + *(hdr + 7);
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memcpy((void *)NetRxPackets[rx_new], hdr + 12, length);
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stat &= ~MBOX_STAT_CP;
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mbox->stat = stat;
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#ifdef DEBUG
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{
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int i;
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for (i=0;i<length - 4;i++)
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{
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if (i % 16 == 0) printf("\n%04x: ", i);
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printf("%02X ", NetRxPackets[rx_new][i]);
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}
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printf("\n");
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}
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#endif
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if (length)
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{
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#ifdef DEBUG
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printf("Received %d bytes\n", length);
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#endif
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NetReceive((void*)(NetRxPackets[rx_new]),
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length - 4);
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}
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else
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{
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#if 1
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printf("Zero length!!!\n");
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#endif
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}
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rx_new = (rx_new + 1) % NUM_RX_DESC;
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}
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#ifdef DEBUG
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printf("Leaving plb2800_eth_recv()\n");
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#endif
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return length;
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}
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static void plb2800_eth_halt(struct eth_device *dev)
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{
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#ifdef DEBUG
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printf("Entered plb2800_eth_halt()\n");
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#endif
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#ifdef DEBUG
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printf("Leaving plb2800_eth_halt()\n");
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#endif
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}
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static void plb2800_set_mac_addr(struct eth_device *dev, unsigned char * addr)
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{
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char packet[60];
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ulong temp;
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int ix;
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if (mac_addr_set ||
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NULL == addr || memcmp(addr, "\0\0\0\0\0\0", 6) == 0)
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{
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return;
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}
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/* send one packet through CPU port
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* in order to learn system MAC address
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*/
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/* Set DA_LOOKUP register */
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temp = EN_MA_LEARN | (0 << DA_STATE_SHF) | (63 << DA_DEST_SHF);
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DA_LOOKUP = temp;
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/* Set MA_LEARN register */
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temp = 50 << MA_DEST_SHF; /* static entry */
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MA_LEARN = temp;
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/* set destination address */
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for (ix=0;ix<6;ix++)
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packet[ix] = 0xff;
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/* set source address = system MAC address */
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for (ix=0;ix<6;ix++)
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packet[6+ix] = addr[ix];
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/* set type field */
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packet[12]=0xaa;
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packet[13]=0x55;
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/* set data field */
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for(ix=14;ix<60;ix++)
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packet[ix] = 0x00;
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#ifdef DEBUG
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for (ix=0;ix<6;ix++)
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printf("mac_addr[%d]=%02X\n", ix, (unsigned char)packet[6+ix]);
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#endif
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/* set one packet */
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plb2800_eth_send(dev, packet, sizeof(packet));
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/* delay for a while */
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for(ix=0;ix<65535;ix++)
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temp = ~temp;
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/* Set CMAC_CTX_CTRL register */
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temp = TSTAMP_MS; /* no autocast */
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CMAC_CTX_CTRL = temp;
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/* Set DA_LOOKUP register */
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temp = EN_DA_LKUP;
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DA_LOOKUP = temp;
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mac_addr_set = 1;
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}
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static unsigned char * plb2800_get_mac_addr(void)
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{
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static unsigned char addr[6];
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char *tmp, *end;
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int i;
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tmp = getenv ("ethaddr");
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if (NULL == tmp) return NULL;
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for (i=0; i<6; i++) {
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addr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
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if (tmp)
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tmp = (*end) ? end+1 : end;
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}
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return addr;
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}
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