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u-boot/drivers/tsec.c
Paul Gortmaker 91e2576977 mpc83xx: U-Boot support for Wind River SBC8349 
I've redone the SBC8349 support to match git-current, which
incorporates all the MPC834x updates from Freescale since the 1.1.6
release,  including the DDR changes.

I've kept all the SBC8349 files as parallel as possible to the
MPC8349EMDS ones for ease of maintenance and to allow for easy
inspection of what was changed to support this board.  Hence the SBC8349
U-Boot has FDT support and everything else that the MPC8349EMDS has.

Fortunately the Freescale updates added support for boards using CS0,
but I had to change spd_sdram.c to allow for board specific settings for
the sdram_clk_cntl (it is/was hard coded to zero, and that remains the
default if the board doesn't specify a value.)

Hopefully this should be mergeable as-is and require no whitespace
cleanups or similar, but if something doesn't measure up then let me
know and I'll fix it.

Thanks,
Paul.
2007-03-02 11:05:53 -06:00

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/*
* Freescale Three Speed Ethernet Controller driver
*
* This software may be used and distributed according to the
* terms of the GNU Public License, Version 2, incorporated
* herein by reference.
*
* Copyright 2004 Freescale Semiconductor.
* (C) Copyright 2003, Motorola, Inc.
* author Andy Fleming
*
*/
#include <config.h>
#include <common.h>
#include <malloc.h>
#include <net.h>
#include <command.h>
#if defined(CONFIG_TSEC_ENET)
#include "tsec.h"
#include "miiphy.h"
DECLARE_GLOBAL_DATA_PTR;
#define TX_BUF_CNT 2
static uint rxIdx; /* index of the current RX buffer */
static uint txIdx; /* index of the current TX buffer */
typedef volatile struct rtxbd {
txbd8_t txbd[TX_BUF_CNT];
rxbd8_t rxbd[PKTBUFSRX];
} RTXBD;
struct tsec_info_struct {
unsigned int phyaddr;
u32 flags;
unsigned int phyregidx;
};
/* The tsec_info structure contains 3 values which the
* driver uses to determine how to operate a given ethernet
* device. The information needed is:
* phyaddr - The address of the PHY which is attached to
* the given device.
*
* flags - This variable indicates whether the device
* supports gigabit speed ethernet, and whether it should be
* in reduced mode.
*
* phyregidx - This variable specifies which ethernet device
* controls the MII Management registers which are connected
* to the PHY. For now, only TSEC1 (index 0) has
* access to the PHYs, so all of the entries have "0".
*
* The values specified in the table are taken from the board's
* config file in include/configs/. When implementing a new
* board with ethernet capability, it is necessary to define:
* TSECn_PHY_ADDR
* TSECn_PHYIDX
*
* for n = 1,2,3, etc. And for FEC:
* FEC_PHY_ADDR
* FEC_PHYIDX
*/
static struct tsec_info_struct tsec_info[] = {
#if defined(CONFIG_MPC85XX_TSEC1) || defined(CONFIG_MPC83XX_TSEC1)
{TSEC1_PHY_ADDR, TSEC_GIGABIT, TSEC1_PHYIDX},
#elif defined(CONFIG_MPC86XX_TSEC1)
{TSEC1_PHY_ADDR, TSEC_GIGABIT | TSEC_REDUCED, TSEC1_PHYIDX},
#else
{0, 0, 0},
#endif
#if defined(CONFIG_MPC85XX_TSEC2) || defined(CONFIG_MPC83XX_TSEC2)
{TSEC2_PHY_ADDR, TSEC_GIGABIT, TSEC2_PHYIDX},
#elif defined(CONFIG_MPC86XX_TSEC2)
{TSEC2_PHY_ADDR, TSEC_GIGABIT | TSEC_REDUCED, TSEC2_PHYIDX},
#else
{0, 0, 0},
#endif
#ifdef CONFIG_MPC85XX_FEC
{FEC_PHY_ADDR, 0, FEC_PHYIDX},
#else
#if defined(CONFIG_MPC85XX_TSEC3) || defined(CONFIG_MPC83XX_TSEC3) || defined(CONFIG_MPC86XX_TSEC3)
{TSEC3_PHY_ADDR, TSEC_GIGABIT | TSEC_REDUCED, TSEC3_PHYIDX},
#else
{0, 0, 0},
#endif
#if defined(CONFIG_MPC85XX_TSEC4) || defined(CONFIG_MPC83XX_TSEC4) || defined(CONFIG_MPC86XX_TSEC4)
{TSEC4_PHY_ADDR, TSEC_GIGABIT | TSEC_REDUCED, TSEC4_PHYIDX},
#else
{0, 0, 0},
#endif
#endif
};
#define MAXCONTROLLERS (4)
static int relocated = 0;
static struct tsec_private *privlist[MAXCONTROLLERS];
#ifdef __GNUC__
static RTXBD rtx __attribute__ ((aligned(8)));
#else
#error "rtx must be 64-bit aligned"
#endif
static int tsec_send(struct eth_device *dev,
volatile void *packet, int length);
static int tsec_recv(struct eth_device *dev);
static int tsec_init(struct eth_device *dev, bd_t * bd);
static void tsec_halt(struct eth_device *dev);
static void init_registers(volatile tsec_t * regs);
static void startup_tsec(struct eth_device *dev);
static int init_phy(struct eth_device *dev);
void write_phy_reg(struct tsec_private *priv, uint regnum, uint value);
uint read_phy_reg(struct tsec_private *priv, uint regnum);
struct phy_info *get_phy_info(struct eth_device *dev);
void phy_run_commands(struct tsec_private *priv, struct phy_cmd *cmd);
static void adjust_link(struct eth_device *dev);
static void relocate_cmds(void);
static int tsec_miiphy_write(char *devname, unsigned char addr,
unsigned char reg, unsigned short value);
static int tsec_miiphy_read(char *devname, unsigned char addr,
unsigned char reg, unsigned short *value);
/* Initialize device structure. Returns success if PHY
* initialization succeeded (i.e. if it recognizes the PHY)
*/
int tsec_initialize(bd_t * bis, int index, char *devname)
{
struct eth_device *dev;
int i;
struct tsec_private *priv;
dev = (struct eth_device *)malloc(sizeof *dev);
if (NULL == dev)
return 0;
memset(dev, 0, sizeof *dev);
priv = (struct tsec_private *)malloc(sizeof(*priv));
if (NULL == priv)
return 0;
privlist[index] = priv;
priv->regs = (volatile tsec_t *)(TSEC_BASE_ADDR + index * TSEC_SIZE);
priv->phyregs = (volatile tsec_t *)(TSEC_BASE_ADDR +
tsec_info[index].phyregidx *
TSEC_SIZE);
priv->phyaddr = tsec_info[index].phyaddr;
priv->flags = tsec_info[index].flags;
sprintf(dev->name, devname);
dev->iobase = 0;
dev->priv = priv;
dev->init = tsec_init;
dev->halt = tsec_halt;
dev->send = tsec_send;
dev->recv = tsec_recv;
/* Tell u-boot to get the addr from the env */
for (i = 0; i < 6; i++)
dev->enetaddr[i] = 0;
eth_register(dev);
/* Reset the MAC */
priv->regs->maccfg1 |= MACCFG1_SOFT_RESET;
priv->regs->maccfg1 &= ~(MACCFG1_SOFT_RESET);
#if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII) \
&& !defined(BITBANGMII)
miiphy_register(dev->name, tsec_miiphy_read, tsec_miiphy_write);
#endif
/* Try to initialize PHY here, and return */
return init_phy(dev);
}
/* Initializes data structures and registers for the controller,
* and brings the interface up. Returns the link status, meaning
* that it returns success if the link is up, failure otherwise.
* This allows u-boot to find the first active controller.
*/
int tsec_init(struct eth_device *dev, bd_t * bd)
{
uint tempval;
char tmpbuf[MAC_ADDR_LEN];
int i;
struct tsec_private *priv = (struct tsec_private *)dev->priv;
volatile tsec_t *regs = priv->regs;
/* Make sure the controller is stopped */
tsec_halt(dev);
/* Init MACCFG2. Defaults to GMII */
regs->maccfg2 = MACCFG2_INIT_SETTINGS;
/* Init ECNTRL */
regs->ecntrl = ECNTRL_INIT_SETTINGS;
/* Copy the station address into the address registers.
* Backwards, because little endian MACS are dumb */
for (i = 0; i < MAC_ADDR_LEN; i++) {
tmpbuf[MAC_ADDR_LEN - 1 - i] = dev->enetaddr[i];
}
regs->macstnaddr1 = *((uint *) (tmpbuf));
tempval = *((uint *) (tmpbuf + 4));
regs->macstnaddr2 = tempval;
/* reset the indices to zero */
rxIdx = 0;
txIdx = 0;
/* Clear out (for the most part) the other registers */
init_registers(regs);
/* Ready the device for tx/rx */
startup_tsec(dev);
/* If there's no link, fail */
return priv->link;
}
/* Write value to the device's PHY through the registers
* specified in priv, modifying the register specified in regnum.
* It will wait for the write to be done (or for a timeout to
* expire) before exiting
*/
void write_phy_reg(struct tsec_private *priv, uint regnum, uint value)
{
volatile tsec_t *regbase = priv->phyregs;
uint phyid = priv->phyaddr;
int timeout = 1000000;
regbase->miimadd = (phyid << 8) | regnum;
regbase->miimcon = value;
asm("sync");
timeout = 1000000;
while ((regbase->miimind & MIIMIND_BUSY) && timeout--) ;
}
/* Reads register regnum on the device's PHY through the
* registers specified in priv. It lowers and raises the read
* command, and waits for the data to become valid (miimind
* notvalid bit cleared), and the bus to cease activity (miimind
* busy bit cleared), and then returns the value
*/
uint read_phy_reg(struct tsec_private *priv, uint regnum)
{
uint value;
volatile tsec_t *regbase = priv->phyregs;
uint phyid = priv->phyaddr;
/* Put the address of the phy, and the register
* number into MIIMADD */
regbase->miimadd = (phyid << 8) | regnum;
/* Clear the command register, and wait */
regbase->miimcom = 0;
asm("sync");
/* Initiate a read command, and wait */
regbase->miimcom = MIIM_READ_COMMAND;
asm("sync");
/* Wait for the the indication that the read is done */
while ((regbase->miimind & (MIIMIND_NOTVALID | MIIMIND_BUSY))) ;
/* Grab the value read from the PHY */
value = regbase->miimstat;
return value;
}
/* Discover which PHY is attached to the device, and configure it
* properly. If the PHY is not recognized, then return 0
* (failure). Otherwise, return 1
*/
static int init_phy(struct eth_device *dev)
{
struct tsec_private *priv = (struct tsec_private *)dev->priv;
struct phy_info *curphy;
volatile tsec_t *regs = (volatile tsec_t *)(TSEC_BASE_ADDR);
/* Assign a Physical address to the TBI */
regs->tbipa = TBIPA_VALUE;
regs = (volatile tsec_t *)(TSEC_BASE_ADDR + TSEC_SIZE);
regs->tbipa = TBIPA_VALUE;
asm("sync");
/* Reset MII (due to new addresses) */
priv->phyregs->miimcfg = MIIMCFG_RESET;
asm("sync");
priv->phyregs->miimcfg = MIIMCFG_INIT_VALUE;
asm("sync");
while (priv->phyregs->miimind & MIIMIND_BUSY) ;
if (0 == relocated)
relocate_cmds();
/* Get the cmd structure corresponding to the attached
* PHY */
curphy = get_phy_info(dev);
if (curphy == NULL) {
priv->phyinfo = NULL;
printf("%s: No PHY found\n", dev->name);
return 0;
}
priv->phyinfo = curphy;
phy_run_commands(priv, priv->phyinfo->config);
return 1;
}
/*
* Returns which value to write to the control register.
* For 10/100, the value is slightly different
*/
uint mii_cr_init(uint mii_reg, struct tsec_private * priv)
{
if (priv->flags & TSEC_GIGABIT)
return MIIM_CONTROL_INIT;
else
return MIIM_CR_INIT;
}
/* Parse the status register for link, and then do
* auto-negotiation
*/
uint mii_parse_sr(uint mii_reg, struct tsec_private * priv)
{
/*
* Wait if PHY is capable of autonegotiation and autonegotiation
* is not complete.
*/
mii_reg = read_phy_reg(priv, MIIM_STATUS);
if ((mii_reg & PHY_BMSR_AUTN_ABLE)
&& !(mii_reg & PHY_BMSR_AUTN_COMP)) {
int i = 0;
puts("Waiting for PHY auto negotiation to complete");
while (!((mii_reg & PHY_BMSR_AUTN_COMP)
&& (mii_reg & MIIM_STATUS_LINK))) {
/*
* Timeout reached ?
*/
if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
puts(" TIMEOUT !\n");
priv->link = 0;
return 0;
}
if ((i++ % 1000) == 0) {
putc('.');
}
udelay(1000); /* 1 ms */
mii_reg = read_phy_reg(priv, MIIM_STATUS);
}
puts(" done\n");
priv->link = 1;
udelay(500000); /* another 500 ms (results in faster booting) */
} else {
priv->link = 1;
}
return 0;
}
/*
* Parse the BCM54xx status register for speed and duplex information.
* The linux sungem_phy has this information, but in a table format.
*/
uint mii_parse_BCM54xx_sr(uint mii_reg, struct tsec_private *priv)
{
switch((mii_reg & MIIM_BCM54xx_AUXSTATUS_LINKMODE_MASK) >> MIIM_BCM54xx_AUXSTATUS_LINKMODE_SHIFT){
case 1:
printf("Enet starting in 10BT/HD\n");
priv->duplexity = 0;
priv->speed = 10;
break;
case 2:
printf("Enet starting in 10BT/FD\n");
priv->duplexity = 1;
priv->speed = 10;
break;
case 3:
printf("Enet starting in 100BT/HD\n");
priv->duplexity = 0;
priv->speed = 100;
break;
case 5:
printf("Enet starting in 100BT/FD\n");
priv->duplexity = 1;
priv->speed = 100;
break;
case 6:
printf("Enet starting in 1000BT/HD\n");
priv->duplexity = 0;
priv->speed = 1000;
break;
case 7:
printf("Enet starting in 1000BT/FD\n");
priv->duplexity = 1;
priv->speed = 1000;
break;
default:
printf("Auto-neg error, defaulting to 10BT/HD\n");
priv->duplexity = 0;
priv->speed = 10;
break;
}
return 0;
}
/* Parse the 88E1011's status register for speed and duplex
* information
*/
uint mii_parse_88E1011_psr(uint mii_reg, struct tsec_private * priv)
{
uint speed;
mii_reg = read_phy_reg(priv, MIIM_88E1011_PHY_STATUS);
if (!((mii_reg & MIIM_88E1011_PHYSTAT_SPDDONE) &&
(mii_reg & MIIM_88E1011_PHYSTAT_LINK))) {
int i = 0;
puts("Waiting for PHY realtime link");
while (!((mii_reg & MIIM_88E1011_PHYSTAT_SPDDONE) &&
(mii_reg & MIIM_88E1011_PHYSTAT_LINK))) {
/*
* Timeout reached ?
*/
if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
puts(" TIMEOUT !\n");
priv->link = 0;
break;
}
if ((i++ % 1000) == 0) {
putc('.');
}
udelay(1000); /* 1 ms */
mii_reg = read_phy_reg(priv, MIIM_88E1011_PHY_STATUS);
}
puts(" done\n");
udelay(500000); /* another 500 ms (results in faster booting) */
}
if (mii_reg & MIIM_88E1011_PHYSTAT_DUPLEX)
priv->duplexity = 1;
else
priv->duplexity = 0;
speed = (mii_reg & MIIM_88E1011_PHYSTAT_SPEED);
switch (speed) {
case MIIM_88E1011_PHYSTAT_GBIT:
priv->speed = 1000;
break;
case MIIM_88E1011_PHYSTAT_100:
priv->speed = 100;
break;
default:
priv->speed = 10;
}
return 0;
}
/* Parse the cis8201's status register for speed and duplex
* information
*/
uint mii_parse_cis8201(uint mii_reg, struct tsec_private * priv)
{
uint speed;
if (mii_reg & MIIM_CIS8201_AUXCONSTAT_DUPLEX)
priv->duplexity = 1;
else
priv->duplexity = 0;
speed = mii_reg & MIIM_CIS8201_AUXCONSTAT_SPEED;
switch (speed) {
case MIIM_CIS8201_AUXCONSTAT_GBIT:
priv->speed = 1000;
break;
case MIIM_CIS8201_AUXCONSTAT_100:
priv->speed = 100;
break;
default:
priv->speed = 10;
break;
}
return 0;
}
/* Parse the vsc8244's status register for speed and duplex
* information
*/
uint mii_parse_vsc8244(uint mii_reg, struct tsec_private * priv)
{
uint speed;
if (mii_reg & MIIM_VSC8244_AUXCONSTAT_DUPLEX)
priv->duplexity = 1;
else
priv->duplexity = 0;
speed = mii_reg & MIIM_VSC8244_AUXCONSTAT_SPEED;
switch (speed) {
case MIIM_VSC8244_AUXCONSTAT_GBIT:
priv->speed = 1000;
break;
case MIIM_VSC8244_AUXCONSTAT_100:
priv->speed = 100;
break;
default:
priv->speed = 10;
break;
}
return 0;
}
/* Parse the DM9161's status register for speed and duplex
* information
*/
uint mii_parse_dm9161_scsr(uint mii_reg, struct tsec_private * priv)
{
if (mii_reg & (MIIM_DM9161_SCSR_100F | MIIM_DM9161_SCSR_100H))
priv->speed = 100;
else
priv->speed = 10;
if (mii_reg & (MIIM_DM9161_SCSR_100F | MIIM_DM9161_SCSR_10F))
priv->duplexity = 1;
else
priv->duplexity = 0;
return 0;
}
/*
* Hack to write all 4 PHYs with the LED values
*/
uint mii_cis8204_fixled(uint mii_reg, struct tsec_private * priv)
{
uint phyid;
volatile tsec_t *regbase = priv->phyregs;
int timeout = 1000000;
for (phyid = 0; phyid < 4; phyid++) {
regbase->miimadd = (phyid << 8) | mii_reg;
regbase->miimcon = MIIM_CIS8204_SLEDCON_INIT;
asm("sync");
timeout = 1000000;
while ((regbase->miimind & MIIMIND_BUSY) && timeout--) ;
}
return MIIM_CIS8204_SLEDCON_INIT;
}
uint mii_cis8204_setmode(uint mii_reg, struct tsec_private * priv)
{
if (priv->flags & TSEC_REDUCED)
return MIIM_CIS8204_EPHYCON_INIT | MIIM_CIS8204_EPHYCON_RGMII;
else
return MIIM_CIS8204_EPHYCON_INIT;
}
/* Initialized required registers to appropriate values, zeroing
* those we don't care about (unless zero is bad, in which case,
* choose a more appropriate value)
*/
static void init_registers(volatile tsec_t * regs)
{
/* Clear IEVENT */
regs->ievent = IEVENT_INIT_CLEAR;
regs->imask = IMASK_INIT_CLEAR;
regs->hash.iaddr0 = 0;
regs->hash.iaddr1 = 0;
regs->hash.iaddr2 = 0;
regs->hash.iaddr3 = 0;
regs->hash.iaddr4 = 0;
regs->hash.iaddr5 = 0;
regs->hash.iaddr6 = 0;
regs->hash.iaddr7 = 0;
regs->hash.gaddr0 = 0;
regs->hash.gaddr1 = 0;
regs->hash.gaddr2 = 0;
regs->hash.gaddr3 = 0;
regs->hash.gaddr4 = 0;
regs->hash.gaddr5 = 0;
regs->hash.gaddr6 = 0;
regs->hash.gaddr7 = 0;
regs->rctrl = 0x00000000;
/* Init RMON mib registers */
memset((void *)&(regs->rmon), 0, sizeof(rmon_mib_t));
regs->rmon.cam1 = 0xffffffff;
regs->rmon.cam2 = 0xffffffff;
regs->mrblr = MRBLR_INIT_SETTINGS;
regs->minflr = MINFLR_INIT_SETTINGS;
regs->attr = ATTR_INIT_SETTINGS;
regs->attreli = ATTRELI_INIT_SETTINGS;
}
/* Configure maccfg2 based on negotiated speed and duplex
* reported by PHY handling code
*/
static void adjust_link(struct eth_device *dev)
{
struct tsec_private *priv = (struct tsec_private *)dev->priv;
volatile tsec_t *regs = priv->regs;
if (priv->link) {
if (priv->duplexity != 0)
regs->maccfg2 |= MACCFG2_FULL_DUPLEX;
else
regs->maccfg2 &= ~(MACCFG2_FULL_DUPLEX);
switch (priv->speed) {
case 1000:
regs->maccfg2 = ((regs->maccfg2 & ~(MACCFG2_IF))
| MACCFG2_GMII);
break;
case 100:
case 10:
regs->maccfg2 = ((regs->maccfg2 & ~(MACCFG2_IF))
| MACCFG2_MII);
/* Set R100 bit in all modes although
* it is only used in RGMII mode
*/
if (priv->speed == 100)
regs->ecntrl |= ECNTRL_R100;
else
regs->ecntrl &= ~(ECNTRL_R100);
break;
default:
printf("%s: Speed was bad\n", dev->name);
break;
}
printf("Speed: %d, %s duplex\n", priv->speed,
(priv->duplexity) ? "full" : "half");
} else {
printf("%s: No link.\n", dev->name);
}
}
/* Set up the buffers and their descriptors, and bring up the
* interface
*/
static void startup_tsec(struct eth_device *dev)
{
int i;
struct tsec_private *priv = (struct tsec_private *)dev->priv;
volatile tsec_t *regs = priv->regs;
/* Point to the buffer descriptors */
regs->tbase = (unsigned int)(&rtx.txbd[txIdx]);
regs->rbase = (unsigned int)(&rtx.rxbd[rxIdx]);
/* Initialize the Rx Buffer descriptors */
for (i = 0; i < PKTBUFSRX; i++) {
rtx.rxbd[i].status = RXBD_EMPTY;
rtx.rxbd[i].length = 0;
rtx.rxbd[i].bufPtr = (uint) NetRxPackets[i];
}
rtx.rxbd[PKTBUFSRX - 1].status |= RXBD_WRAP;
/* Initialize the TX Buffer Descriptors */
for (i = 0; i < TX_BUF_CNT; i++) {
rtx.txbd[i].status = 0;
rtx.txbd[i].length = 0;
rtx.txbd[i].bufPtr = 0;
}
rtx.txbd[TX_BUF_CNT - 1].status |= TXBD_WRAP;
/* Start up the PHY */
if(priv->phyinfo)
phy_run_commands(priv, priv->phyinfo->startup);
adjust_link(dev);
/* Enable Transmit and Receive */
regs->maccfg1 |= (MACCFG1_RX_EN | MACCFG1_TX_EN);
/* Tell the DMA it is clear to go */
regs->dmactrl |= DMACTRL_INIT_SETTINGS;
regs->tstat = TSTAT_CLEAR_THALT;
regs->dmactrl &= ~(DMACTRL_GRS | DMACTRL_GTS);
}
/* This returns the status bits of the device. The return value
* is never checked, and this is what the 8260 driver did, so we
* do the same. Presumably, this would be zero if there were no
* errors
*/
static int tsec_send(struct eth_device *dev, volatile void *packet, int length)
{
int i;
int result = 0;
struct tsec_private *priv = (struct tsec_private *)dev->priv;
volatile tsec_t *regs = priv->regs;
/* Find an empty buffer descriptor */
for (i = 0; rtx.txbd[txIdx].status & TXBD_READY; i++) {
if (i >= TOUT_LOOP) {
debug("%s: tsec: tx buffers full\n", dev->name);
return result;
}
}
rtx.txbd[txIdx].bufPtr = (uint) packet;
rtx.txbd[txIdx].length = length;
rtx.txbd[txIdx].status |=
(TXBD_READY | TXBD_LAST | TXBD_CRC | TXBD_INTERRUPT);
/* Tell the DMA to go */
regs->tstat = TSTAT_CLEAR_THALT;
/* Wait for buffer to be transmitted */
for (i = 0; rtx.txbd[txIdx].status & TXBD_READY; i++) {
if (i >= TOUT_LOOP) {
debug("%s: tsec: tx error\n", dev->name);
return result;
}
}
txIdx = (txIdx + 1) % TX_BUF_CNT;
result = rtx.txbd[txIdx].status & TXBD_STATS;
return result;
}
static int tsec_recv(struct eth_device *dev)
{
int length;
struct tsec_private *priv = (struct tsec_private *)dev->priv;
volatile tsec_t *regs = priv->regs;
while (!(rtx.rxbd[rxIdx].status & RXBD_EMPTY)) {
length = rtx.rxbd[rxIdx].length;
/* Send the packet up if there were no errors */
if (!(rtx.rxbd[rxIdx].status & RXBD_STATS)) {
NetReceive(NetRxPackets[rxIdx], length - 4);
} else {
printf("Got error %x\n",
(rtx.rxbd[rxIdx].status & RXBD_STATS));
}
rtx.rxbd[rxIdx].length = 0;
/* Set the wrap bit if this is the last element in the list */
rtx.rxbd[rxIdx].status =
RXBD_EMPTY | (((rxIdx + 1) == PKTBUFSRX) ? RXBD_WRAP : 0);
rxIdx = (rxIdx + 1) % PKTBUFSRX;
}
if (regs->ievent & IEVENT_BSY) {
regs->ievent = IEVENT_BSY;
regs->rstat = RSTAT_CLEAR_RHALT;
}
return -1;
}
/* Stop the interface */
static void tsec_halt(struct eth_device *dev)
{
struct tsec_private *priv = (struct tsec_private *)dev->priv;
volatile tsec_t *regs = priv->regs;
regs->dmactrl &= ~(DMACTRL_GRS | DMACTRL_GTS);
regs->dmactrl |= (DMACTRL_GRS | DMACTRL_GTS);
while (!(regs->ievent & (IEVENT_GRSC | IEVENT_GTSC))) ;
regs->maccfg1 &= ~(MACCFG1_TX_EN | MACCFG1_RX_EN);
/* Shut down the PHY, as needed */
if(priv->phyinfo)
phy_run_commands(priv, priv->phyinfo->shutdown);
}
/* The 5411 id is 0x206070, the 5421 is 0x2060e0 */
struct phy_info phy_info_BCM5461S = {
0x02060c1, /* 5461 ID */
"Broadcom BCM5461S",
0, /* not clear to me what minor revisions we can shift away */
(struct phy_cmd[]) { /* config */
/* Reset and configure the PHY */
{MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
{MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
{MIIM_ANAR, MIIM_ANAR_INIT, NULL},
{MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
{MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
{miim_end,}
},
(struct phy_cmd[]) { /* startup */
/* Status is read once to clear old link state */
{MIIM_STATUS, miim_read, NULL},
/* Auto-negotiate */
{MIIM_STATUS, miim_read, &mii_parse_sr},
/* Read the status */
{MIIM_BCM54xx_AUXSTATUS, miim_read, &mii_parse_BCM54xx_sr},
{miim_end,}
},
(struct phy_cmd[]) { /* shutdown */
{miim_end,}
},
};
struct phy_info phy_info_M88E1011S = {
0x01410c6,
"Marvell 88E1011S",
4,
(struct phy_cmd[]){ /* config */
/* Reset and configure the PHY */
{MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
{0x1d, 0x1f, NULL},
{0x1e, 0x200c, NULL},
{0x1d, 0x5, NULL},
{0x1e, 0x0, NULL},
{0x1e, 0x100, NULL},
{MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
{MIIM_ANAR, MIIM_ANAR_INIT, NULL},
{MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
{MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
{miim_end,}
},
(struct phy_cmd[]){ /* startup */
/* Status is read once to clear old link state */
{MIIM_STATUS, miim_read, NULL},
/* Auto-negotiate */
{MIIM_STATUS, miim_read, &mii_parse_sr},
/* Read the status */
{MIIM_88E1011_PHY_STATUS, miim_read,
&mii_parse_88E1011_psr},
{miim_end,}
},
(struct phy_cmd[]){ /* shutdown */
{miim_end,}
},
};
struct phy_info phy_info_M88E1111S = {
0x01410cc,
"Marvell 88E1111S",
4,
(struct phy_cmd[]){ /* config */
/* Reset and configure the PHY */
{MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
{0x1d, 0x1f, NULL},
{0x1e, 0x200c, NULL},
{0x1d, 0x5, NULL},
{0x1e, 0x0, NULL},
{0x1e, 0x100, NULL},
{0x14, 0x0cd2, NULL}, /* Delay RGMII TX and RX */
{MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
{MIIM_ANAR, MIIM_ANAR_INIT, NULL},
{MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
{MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
{miim_end,}
},
(struct phy_cmd[]){ /* startup */
/* Status is read once to clear old link state */
{MIIM_STATUS, miim_read, NULL},
/* Auto-negotiate */
{MIIM_STATUS, miim_read, &mii_parse_sr},
/* Read the status */
{MIIM_88E1011_PHY_STATUS, miim_read,
&mii_parse_88E1011_psr},
{miim_end,}
},
(struct phy_cmd[]){ /* shutdown */
{miim_end,}
},
};
static unsigned int m88e1145_setmode(uint mii_reg, struct tsec_private *priv)
{
uint mii_data = read_phy_reg(priv, mii_reg);
/* Setting MIIM_88E1145_PHY_EXT_CR */
if (priv->flags & TSEC_REDUCED)
return mii_data |
MIIM_M88E1145_RGMII_RX_DELAY | MIIM_M88E1145_RGMII_TX_DELAY;
else
return mii_data;
}
static struct phy_info phy_info_M88E1145 = {
0x01410cd,
"Marvell 88E1145",
4,
(struct phy_cmd[]){ /* config */
/* Errata E0, E1 */
{29, 0x001b, NULL},
{30, 0x418f, NULL},
{29, 0x0016, NULL},
{30, 0xa2da, NULL},
/* Reset and configure the PHY */
{MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
{MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
{MIIM_ANAR, MIIM_ANAR_INIT, NULL},
{MIIM_88E1011_PHY_SCR, MIIM_88E1011_PHY_MDI_X_AUTO,
NULL},
{MIIM_88E1145_PHY_EXT_CR, 0, &m88e1145_setmode},
{MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
{MIIM_CONTROL, MIIM_CONTROL_INIT, NULL},
{miim_end,}
},
(struct phy_cmd[]){ /* startup */
/* Status is read once to clear old link state */
{MIIM_STATUS, miim_read, NULL},
/* Auto-negotiate */
{MIIM_STATUS, miim_read, &mii_parse_sr},
{MIIM_88E1111_PHY_LED_CONTROL,
MIIM_88E1111_PHY_LED_DIRECT, NULL},
/* Read the Status */
{MIIM_88E1011_PHY_STATUS, miim_read,
&mii_parse_88E1011_psr},
{miim_end,}
},
(struct phy_cmd[]){ /* shutdown */
{miim_end,}
},
};
struct phy_info phy_info_cis8204 = {
0x3f11,
"Cicada Cis8204",
6,
(struct phy_cmd[]){ /* config */
/* Override PHY config settings */
{MIIM_CIS8201_AUX_CONSTAT,
MIIM_CIS8201_AUXCONSTAT_INIT, NULL},
/* Configure some basic stuff */
{MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
{MIIM_CIS8204_SLED_CON, MIIM_CIS8204_SLEDCON_INIT,
&mii_cis8204_fixled},
{MIIM_CIS8204_EPHY_CON, MIIM_CIS8204_EPHYCON_INIT,
&mii_cis8204_setmode},
{miim_end,}
},
(struct phy_cmd[]){ /* startup */
/* Read the Status (2x to make sure link is right) */
{MIIM_STATUS, miim_read, NULL},
/* Auto-negotiate */
{MIIM_STATUS, miim_read, &mii_parse_sr},
/* Read the status */
{MIIM_CIS8201_AUX_CONSTAT, miim_read,
&mii_parse_cis8201},
{miim_end,}
},
(struct phy_cmd[]){ /* shutdown */
{miim_end,}
},
};
/* Cicada 8201 */
struct phy_info phy_info_cis8201 = {
0xfc41,
"CIS8201",
4,
(struct phy_cmd[]){ /* config */
/* Override PHY config settings */
{MIIM_CIS8201_AUX_CONSTAT,
MIIM_CIS8201_AUXCONSTAT_INIT, NULL},
/* Set up the interface mode */
{MIIM_CIS8201_EXT_CON1, MIIM_CIS8201_EXTCON1_INIT,
NULL},
/* Configure some basic stuff */
{MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
{miim_end,}
},
(struct phy_cmd[]){ /* startup */
/* Read the Status (2x to make sure link is right) */
{MIIM_STATUS, miim_read, NULL},
/* Auto-negotiate */
{MIIM_STATUS, miim_read, &mii_parse_sr},
/* Read the status */
{MIIM_CIS8201_AUX_CONSTAT, miim_read,
&mii_parse_cis8201},
{miim_end,}
},
(struct phy_cmd[]){ /* shutdown */
{miim_end,}
},
};
struct phy_info phy_info_VSC8244 = {
0x3f1b,
"Vitesse VSC8244",
6,
(struct phy_cmd[]){ /* config */
/* Override PHY config settings */
/* Configure some basic stuff */
{MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
{miim_end,}
},
(struct phy_cmd[]){ /* startup */
/* Read the Status (2x to make sure link is right) */
{MIIM_STATUS, miim_read, NULL},
/* Auto-negotiate */
{MIIM_STATUS, miim_read, &mii_parse_sr},
/* Read the status */
{MIIM_VSC8244_AUX_CONSTAT, miim_read,
&mii_parse_vsc8244},
{miim_end,}
},
(struct phy_cmd[]){ /* shutdown */
{miim_end,}
},
};
struct phy_info phy_info_dm9161 = {
0x0181b88,
"Davicom DM9161E",
4,
(struct phy_cmd[]){ /* config */
{MIIM_CONTROL, MIIM_DM9161_CR_STOP, NULL},
/* Do not bypass the scrambler/descrambler */
{MIIM_DM9161_SCR, MIIM_DM9161_SCR_INIT, NULL},
/* Clear 10BTCSR to default */
{MIIM_DM9161_10BTCSR, MIIM_DM9161_10BTCSR_INIT,
NULL},
/* Configure some basic stuff */
{MIIM_CONTROL, MIIM_CR_INIT, NULL},
/* Restart Auto Negotiation */
{MIIM_CONTROL, MIIM_DM9161_CR_RSTAN, NULL},
{miim_end,}
},
(struct phy_cmd[]){ /* startup */
/* Status is read once to clear old link state */
{MIIM_STATUS, miim_read, NULL},
/* Auto-negotiate */
{MIIM_STATUS, miim_read, &mii_parse_sr},
/* Read the status */
{MIIM_DM9161_SCSR, miim_read,
&mii_parse_dm9161_scsr},
{miim_end,}
},
(struct phy_cmd[]){ /* shutdown */
{miim_end,}
},
};
uint mii_parse_lxt971_sr2(uint mii_reg, struct tsec_private *priv)
{
unsigned int speed;
if (priv->link) {
speed = mii_reg & MIIM_LXT971_SR2_SPEED_MASK;
switch (speed) {
case MIIM_LXT971_SR2_10HDX:
priv->speed = 10;
priv->duplexity = 0;
break;
case MIIM_LXT971_SR2_10FDX:
priv->speed = 10;
priv->duplexity = 1;
break;
case MIIM_LXT971_SR2_100HDX:
priv->speed = 100;
priv->duplexity = 0;
default:
priv->speed = 100;
priv->duplexity = 1;
break;
}
} else {
priv->speed = 0;
priv->duplexity = 0;
}
return 0;
}
static struct phy_info phy_info_lxt971 = {
0x0001378e,
"LXT971",
4,
(struct phy_cmd[]){ /* config */
{MIIM_CR, MIIM_CR_INIT, mii_cr_init}, /* autonegotiate */
{miim_end,}
},
(struct phy_cmd[]){ /* startup - enable interrupts */
/* { 0x12, 0x00f2, NULL }, */
{MIIM_STATUS, miim_read, NULL},
{MIIM_STATUS, miim_read, &mii_parse_sr},
{MIIM_LXT971_SR2, miim_read, &mii_parse_lxt971_sr2},
{miim_end,}
},
(struct phy_cmd[]){ /* shutdown - disable interrupts */
{miim_end,}
},
};
/* Parse the DP83865's link and auto-neg status register for speed and duplex
* information
*/
uint mii_parse_dp83865_lanr(uint mii_reg, struct tsec_private *priv)
{
switch (mii_reg & MIIM_DP83865_SPD_MASK) {
case MIIM_DP83865_SPD_1000:
priv->speed = 1000;
break;
case MIIM_DP83865_SPD_100:
priv->speed = 100;
break;
default:
priv->speed = 10;
break;
}
if (mii_reg & MIIM_DP83865_DPX_FULL)
priv->duplexity = 1;
else
priv->duplexity = 0;
return 0;
}
struct phy_info phy_info_dp83865 = {
0x20005c7,
"NatSemi DP83865",
4,
(struct phy_cmd[]){ /* config */
{MIIM_CONTROL, MIIM_DP83865_CR_INIT, NULL},
{miim_end,}
},
(struct phy_cmd[]){ /* startup */
/* Status is read once to clear old link state */
{MIIM_STATUS, miim_read, NULL},
/* Auto-negotiate */
{MIIM_STATUS, miim_read, &mii_parse_sr},
/* Read the link and auto-neg status */
{MIIM_DP83865_LANR, miim_read,
&mii_parse_dp83865_lanr},
{miim_end,}
},
(struct phy_cmd[]){ /* shutdown */
{miim_end,}
},
};
struct phy_info *phy_info[] = {
&phy_info_cis8204,
&phy_info_cis8201,
&phy_info_BCM5461S,
&phy_info_M88E1011S,
&phy_info_M88E1111S,
&phy_info_M88E1145,
&phy_info_dm9161,
&phy_info_lxt971,
&phy_info_VSC8244,
&phy_info_dp83865,
NULL
};
/* Grab the identifier of the device's PHY, and search through
* all of the known PHYs to see if one matches. If so, return
* it, if not, return NULL
*/
struct phy_info *get_phy_info(struct eth_device *dev)
{
struct tsec_private *priv = (struct tsec_private *)dev->priv;
uint phy_reg, phy_ID;
int i;
struct phy_info *theInfo = NULL;
/* Grab the bits from PHYIR1, and put them in the upper half */
phy_reg = read_phy_reg(priv, MIIM_PHYIR1);
phy_ID = (phy_reg & 0xffff) << 16;
/* Grab the bits from PHYIR2, and put them in the lower half */
phy_reg = read_phy_reg(priv, MIIM_PHYIR2);
phy_ID |= (phy_reg & 0xffff);
/* loop through all the known PHY types, and find one that */
/* matches the ID we read from the PHY. */
for (i = 0; phy_info[i]; i++) {
if (phy_info[i]->id == (phy_ID >> phy_info[i]->shift))
theInfo = phy_info[i];
}
if (theInfo == NULL) {
printf("%s: PHY id %x is not supported!\n", dev->name, phy_ID);
return NULL;
} else {
debug("%s: PHY is %s (%x)\n", dev->name, theInfo->name, phy_ID);
}
return theInfo;
}
/* Execute the given series of commands on the given device's
* PHY, running functions as necessary
*/
void phy_run_commands(struct tsec_private *priv, struct phy_cmd *cmd)
{
int i;
uint result;
volatile tsec_t *phyregs = priv->phyregs;
phyregs->miimcfg = MIIMCFG_RESET;
phyregs->miimcfg = MIIMCFG_INIT_VALUE;
while (phyregs->miimind & MIIMIND_BUSY) ;
for (i = 0; cmd->mii_reg != miim_end; i++) {
if (cmd->mii_data == miim_read) {
result = read_phy_reg(priv, cmd->mii_reg);
if (cmd->funct != NULL)
(*(cmd->funct)) (result, priv);
} else {
if (cmd->funct != NULL)
result = (*(cmd->funct)) (cmd->mii_reg, priv);
else
result = cmd->mii_data;
write_phy_reg(priv, cmd->mii_reg, result);
}
cmd++;
}
}
/* Relocate the function pointers in the phy cmd lists */
static void relocate_cmds(void)
{
struct phy_cmd **cmdlistptr;
struct phy_cmd *cmd;
int i, j, k;
for (i = 0; phy_info[i]; i++) {
/* First thing's first: relocate the pointers to the
* PHY command structures (the structs were done) */
phy_info[i] = (struct phy_info *)((uint) phy_info[i]
+ gd->reloc_off);
phy_info[i]->name += gd->reloc_off;
phy_info[i]->config =
(struct phy_cmd *)((uint) phy_info[i]->config
+ gd->reloc_off);
phy_info[i]->startup =
(struct phy_cmd *)((uint) phy_info[i]->startup
+ gd->reloc_off);
phy_info[i]->shutdown =
(struct phy_cmd *)((uint) phy_info[i]->shutdown
+ gd->reloc_off);
cmdlistptr = &phy_info[i]->config;
j = 0;
for (; cmdlistptr <= &phy_info[i]->shutdown; cmdlistptr++) {
k = 0;
for (cmd = *cmdlistptr;
cmd->mii_reg != miim_end;
cmd++) {
/* Only relocate non-NULL pointers */
if (cmd->funct)
cmd->funct += gd->reloc_off;
k++;
}
j++;
}
}
relocated = 1;
}
#if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII) \
&& !defined(BITBANGMII)
struct tsec_private *get_priv_for_phy(unsigned char phyaddr)
{
int i;
for (i = 0; i < MAXCONTROLLERS; i++) {
if (privlist[i]->phyaddr == phyaddr)
return privlist[i];
}
return NULL;
}
/*
* Read a MII PHY register.
*
* Returns:
* 0 on success
*/
static int tsec_miiphy_read(char *devname, unsigned char addr,
unsigned char reg, unsigned short *value)
{
unsigned short ret;
struct tsec_private *priv = get_priv_for_phy(addr);
if (NULL == priv) {
printf("Can't read PHY at address %d\n", addr);
return -1;
}
ret = (unsigned short)read_phy_reg(priv, reg);
*value = ret;
return 0;
}
/*
* Write a MII PHY register.
*
* Returns:
* 0 on success
*/
static int tsec_miiphy_write(char *devname, unsigned char addr,
unsigned char reg, unsigned short value)
{
struct tsec_private *priv = get_priv_for_phy(addr);
if (NULL == priv) {
printf("Can't write PHY at address %d\n", addr);
return -1;
}
write_phy_reg(priv, reg, value);
return 0;
}
#endif /* defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
&& !defined(BITBANGMII) */
#endif /* CONFIG_TSEC_ENET */
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