Commit 395bce4f authored by Mike Frysinger's avatar Mike Frysinger Committed by Wolfgang Denk
Browse files

net/Blackfin: move on-chip MAC driver into drivers/net/



The Blackfin on-chip MAC driver was being managed in the BF537-STAMP board
directory, but it is not board specific, so relocate it to the drivers dir
so that other Blackfin ports can utilize it.
Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
parent 8a30b470
......@@ -29,7 +29,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
COBJS := $(BOARD).o ether_bf537.o post-memory.o stm_m25p64.o cmd_bf537led.o nand.o
COBJS := $(BOARD).o post-memory.o stm_m25p64.o cmd_bf537led.o nand.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
......
......@@ -27,6 +27,7 @@ LIB := $(obj)libnet.a
COBJS-y += 3c589.o
COBJS-y += bcm570x.o bcm570x_autoneg.o 5701rls.o
COBJS-$(CONFIG_BFIN_MAC) += bfin_mac.o
COBJS-y += cs8900.o
COBJS-y += dc2114x.o
COBJS-y += dm9000x.o
......
/*
* ADI Blackfin 537 MAC Ethernet
* Driver for Blackfin On-Chip MAC device
*
* Copyright (c) 2005 Analog Device, Inc.
* Copyright (c) 2005-2008 Analog Device, Inc.
*
* 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
* Licensed under the GPL-2 or later.
*/
#include <common.h>
#include <config.h>
#include <asm/blackfin.h>
#include <net.h>
#include <command.h>
#include <malloc.h>
#include "ether_bf537.h"
#include <asm/blackfin.h>
#include <asm/mach-common/bits/dma.h>
#include <asm/mach-common/bits/emac.h>
#include <asm/mach-common/bits/pll.h>
#include "bfin_mac.h"
#ifdef CONFIG_POST
#include <post.h>
#endif
......@@ -41,66 +26,50 @@
#undef DEBUG_ETHERNET
#ifdef DEBUG_ETHERNET
#define DEBUGF(fmt,args...) printf(fmt,##args)
#define DEBUGF(fmt, args...) printf(fmt, ##args)
#else
#define DEBUGF(fmt,args...)
#define DEBUGF(fmt, args...)
#endif
#if defined(CONFIG_CMD_NET)
#define RXBUF_BASE_ADDR 0xFF900000
#define TXBUF_BASE_ADDR 0xFF800000
#define TX_BUF_CNT 1
#define TOUT_LOOP 1000000
#define TOUT_LOOP 1000000
ADI_ETHER_BUFFER *txbuf[TX_BUF_CNT];
ADI_ETHER_BUFFER *rxbuf[PKTBUFSRX];
static u16 txIdx; /* index of the current RX buffer */
static u16 rxIdx; /* index of the current TX buffer */
u8 SrcAddr[6];
u16 PHYregs[NO_PHY_REGS]; /* u16 PHYADDR; */
/* DMAx_CONFIG values at DMA Restart */
const ADI_DMA_CONFIG_REG rxdmacfg = { 1, 1, 2, 0, 0, 0, 0, 5, 7 };
#if 0
rxdmacfg.b_DMA_EN = 1; /* enabled */
rxdmacfg.b_WNR = 1; /* write to memory */
rxdmacfg.b_WDSIZE = 2; /* wordsize is 32 bits */
rxdmacfg.b_DMA2D = 0; /* N/A */
rxdmacfg.b_RESTART= 0; /* N/A */
rxdmacfg.b_DI_SEL = 0; /* N/A */
rxdmacfg.b_DI_EN = 0; /* no interrupt */
rxdmacfg.b_NDSIZE = 5; /* 5 half words is desc size. */
rxdmacfg.b_FLOW = 7; /* large desc flow */
#endif
const ADI_DMA_CONFIG_REG txdmacfg = { 1, 0, 2, 0, 0, 0, 0, 5, 7 };
#if 0
txdmacfg.b_DMA_EN = 1; /* enabled */
txdmacfg.b_WNR = 0; /* read from memory */
txdmacfg.b_WDSIZE = 2; /* wordsize is 32 bits */
txdmacfg.b_DMA2D = 0; /* N/A */
txdmacfg.b_RESTART= 0; /* N/A */
txdmacfg.b_DI_SEL = 0; /* N/A */
txdmacfg.b_DI_EN = 0; /* no interrupt */
txdmacfg.b_NDSIZE = 5; /* 5 half words is desc size. */
txdmacfg.b_FLOW = 7; /* large desc flow */
#endif
ADI_ETHER_BUFFER *SetupRxBuffer(int no);
ADI_ETHER_BUFFER *SetupTxBuffer(int no);
static int bfin_EMAC_init(struct eth_device *dev, bd_t * bd);
static void bfin_EMAC_halt(struct eth_device *dev);
static int bfin_EMAC_send(struct eth_device *dev, volatile void *packet,
int length);
static int bfin_EMAC_recv(struct eth_device *dev);
int bfin_EMAC_initialize(bd_t * bis)
const ADI_DMA_CONFIG_REG rxdmacfg = {
.b_DMA_EN = 1, /* enabled */
.b_WNR = 1, /* write to memory */
.b_WDSIZE = 2, /* wordsize is 32 bits */
.b_DMA2D = 0,
.b_RESTART = 0,
.b_DI_SEL = 0,
.b_DI_EN = 0, /* no interrupt */
.b_NDSIZE = 5, /* 5 half words is desc size */
.b_FLOW = 7 /* large desc flow */
};
const ADI_DMA_CONFIG_REG txdmacfg = {
.b_DMA_EN = 1, /* enabled */
.b_WNR = 0, /* read from memory */
.b_WDSIZE = 2, /* wordsize is 32 bits */
.b_DMA2D = 0,
.b_RESTART = 0,
.b_DI_SEL = 0,
.b_DI_EN = 0, /* no interrupt */
.b_NDSIZE = 5, /* 5 half words is desc size */
.b_FLOW = 7 /* large desc flow */
};
int bfin_EMAC_initialize(bd_t *bis)
{
struct eth_device *dev;
dev = (struct eth_device *)malloc(sizeof(*dev));
......@@ -108,7 +77,7 @@ int bfin_EMAC_initialize(bd_t * bis)
hang();
memset(dev, 0, sizeof(*dev));
sprintf(dev->name, "BF537 ETHERNET");
sprintf(dev->name, "Blackfin EMAC");
dev->iobase = 0;
dev->priv = 0;
......@@ -165,7 +134,7 @@ static int bfin_EMAC_send(struct eth_device *dev, volatile void *packet,
txIdx = 0;
else
txIdx++;
out:
out:
DEBUGF("BFIN EMAC send: length = %d\n", length);
return result;
}
......@@ -212,7 +181,7 @@ static int bfin_EMAC_recv(struct eth_device *dev)
*
*************************************************************/
static int bfin_EMAC_init(struct eth_device *dev, bd_t * bd)
static int bfin_EMAC_init(struct eth_device *dev, bd_t *bd)
{
u32 opmode;
int dat;
......@@ -227,7 +196,7 @@ static int bfin_EMAC_init(struct eth_device *dev, bd_t * bd)
return -1;
/* Initialize EMAC address */
SetupMacAddr(SrcAddr);
bfin_EMAC_setup_addr(bd);
/* Initialize TX and RX buffer */
for (i = 0; i < PKTBUFSRX; i++) {
......@@ -289,37 +258,25 @@ static void bfin_EMAC_halt(struct eth_device *dev)
}
void SetupMacAddr(u8 * MACaddr)
void bfin_EMAC_setup_addr(bd_t *bd)
{
char *tmp, *end;
int i;
/* this depends on a little-endian machine */
tmp = getenv("ethaddr");
if (tmp) {
for (i = 0; i < 6; i++) {
MACaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
if (tmp)
tmp = (*end) ? end + 1 : end;
}
#ifndef CONFIG_NETCONSOLE
printf("Using MAC Address %02X:%02X:%02X:%02X:%02X:%02X\n",
MACaddr[0], MACaddr[1],
MACaddr[2], MACaddr[3], MACaddr[4], MACaddr[5]);
#endif
*pEMAC_ADDRLO = MACaddr[0] | MACaddr[1] << 8 |
MACaddr[2] << 16 | MACaddr[3] << 24;
*pEMAC_ADDRHI = MACaddr[4] | MACaddr[5] << 8;
}
*pEMAC_ADDRLO =
bd->bi_enetaddr[0] |
bd->bi_enetaddr[1] << 8 |
bd->bi_enetaddr[2] << 16 |
bd->bi_enetaddr[3] << 24;
*pEMAC_ADDRHI =
bd->bi_enetaddr[4] |
bd->bi_enetaddr[5] << 8;
}
void PollMdcDone(void)
static void PollMdcDone(void)
{
/* poll the STABUSY bit */
while (*pEMAC_STAADD & STABUSY) ;
}
void WrPHYReg(u16 PHYAddr, u16 RegAddr, u16 Data)
static void WrPHYReg(u16 PHYAddr, u16 RegAddr, u16 Data)
{
PollMdcDone();
......@@ -332,7 +289,7 @@ void WrPHYReg(u16 PHYAddr, u16 RegAddr, u16 Data)
/*********************************************************************************
* Read an off-chip register in a PHY through the MDC/MDIO port *
*********************************************************************************/
u16 RdPHYReg(u16 PHYAddr, u16 RegAddr)
static u16 RdPHYReg(u16 PHYAddr, u16 RegAddr)
{
u16 Data;
......@@ -350,7 +307,8 @@ u16 RdPHYReg(u16 PHYAddr, u16 RegAddr)
return Data;
}
void SoftResetPHY(void)
#if 0 /* dead code ? */
static void SoftResetPHY(void)
{
u16 phydat;
/* set the reset bit */
......@@ -362,13 +320,30 @@ void SoftResetPHY(void)
phydat = RdPHYReg(PHYADDR, PHY_MODECTL);
} while ((phydat & PHY_RESET) != 0);
}
#endif
int SetupSystemRegs(int *opmode)
static int SetupSystemRegs(int *opmode)
{
u16 sysctl, phydat;
int count = 0;
/* Enable PHY output */
*pVR_CTL |= CLKBUFOE;
/* Set all the pins to peripheral mode */
#ifndef CONFIG_BFIN_MAC_RMII
*pPORTH_FER = 0xFFFF;
#ifdef __ADSPBF52x__
*pPORTH_MUX = PORT_x_MUX_0_FUNC_2 | PORT_x_MUX_1_FUNC_2 | PORT_x_MUX_2_FUNC_2;
#endif
#else
#if defined(__ADSPBF536__) || defined(__ADSPBF537__)
*pPORTH_FER = 0xC373;
#endif
#ifdef __ADSPBF52x__
*pPORTH_FER = 0x01FF;
*pPORTH_MUX = PORT_x_MUX_0_FUNC_2 | PORT_x_MUX_1_FUNC_2;
#endif
#endif
/* MDC = 2.5 MHz */
sysctl = SET_MDCDIV(24);
/* Odd word alignment for Receive Frame DMA word */
......@@ -546,4 +521,3 @@ int ether_post_test(int flags)
return 0;
}
#endif
#endif
/*
* bfin_mac.h - some defines/structures for the Blackfin on-chip MAC.
*
* Copyright (c) 2005-2008 Analog Device, Inc.
*
* Licensed under the GPL-2 or later.
*/
#ifndef __BFIN_MAC_H__
#define __BFIN_MAC_H__
#define PHYADDR 0x01
#define NO_PHY_REGS 0x20
......@@ -60,12 +71,19 @@ typedef struct adi_ether_buffer {
} ADI_ETHER_BUFFER;
/* 40 bytes/struct in 44 bytes */
void SetupMacAddr(u8 * MACaddr);
static ADI_ETHER_BUFFER *SetupRxBuffer(int no);
static ADI_ETHER_BUFFER *SetupTxBuffer(int no);
static int bfin_EMAC_init(struct eth_device *dev, bd_t *bd);
static void bfin_EMAC_halt(struct eth_device *dev);
static int bfin_EMAC_send(struct eth_device *dev, volatile void *packet, int length);
static int bfin_EMAC_recv(struct eth_device *dev);
static void PollMdcDone(void);
static void WrPHYReg(u16 PHYAddr, u16 RegAddr, u16 Data);
static u16 RdPHYReg(u16 PHYAddr, u16 RegAddr);
static int SetupSystemRegs(int *opmode);
void PollMdcDone(void);
void WrPHYReg(u16 PHYAddr, u16 RegAddr, u16 Data);
u16 RdPHYReg(u16 PHYAddr, u16 RegAddr);
void SoftResetPHY(void);
void DumpPHYRegs(void);
static void bfin_EMAC_setup_addr(bd_t *bd);
int SetupSystemRegs(int *opmode);
#endif
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment