static void reset_mac_unlocked(struct net_device *dev)
{
struct au1000_private *const aup = netdev_priv(dev);
int i;
hard_stop(dev);
*aup->enable = MAC_EN_CLOCK_ENABLE;
au_sync_delay(2);
*aup->enable = 0;
au_sync_delay(2);
aup->tx_full = 0;
for (i = 0; i < NUM_RX_DMA; i++) {
/* reset control bits */
aup->rx_dma_ring[i]->buff_stat &= ~0xf;
}
for (i = 0; i < NUM_TX_DMA; i++) {
/* reset control bits */
aup->tx_dma_ring[i]->buff_stat &= ~0xf;
}
aup->mac_enabled = 0;
}
static void au1000_timer(unsigned long data)
{
struct net_device *dev = (struct net_device *)data;
struct au1000_private *aup = (struct au1000_private *) dev->priv;
unsigned char if_port;
u16 link, speed;
if (!dev) {
/* fatal error, don't restart the timer */
printk(KERN_ERR "au1000_timer error: NULL dev\n");
return;
}
if_port = dev->if_port;
#ifdef CLEANUP
if (aup->phy_ops->phy_status(dev, aup->phy_addr, &link, &speed) == 0) {
if (link) {
if (!(dev->flags & IFF_RUNNING)) {
netif_carrier_on(dev);
dev->flags |= IFF_RUNNING;
printk(KERN_INFO "%s: link up\n", dev->name);
}
}
else {
if (dev->flags & IFF_RUNNING) {
netif_carrier_off(dev);
dev->flags &= ~IFF_RUNNING;
dev->if_port = 0;
printk(KERN_INFO "%s: link down\n", dev->name);
}
}
}
#endif
if (link && (dev->if_port != if_port) &&
(dev->if_port != IF_PORT_UNKNOWN)) {
hard_stop(dev);
if (dev->if_port == IF_PORT_100BASEFX) {
printk(KERN_INFO "%s: going to full duplex\n",
dev->name);
aup->mac->control |= MAC_FULL_DUPLEX;
au_sync_delay(1);
}
else {
aup->mac->control &= ~MAC_FULL_DUPLEX;
au_sync_delay(1);
}
enable_rx_tx(dev);
}
aup->timer.expires = RUN_AT((1*HZ));
aup->timer.data = (unsigned long)dev;
aup->timer.function = &au1000_timer; /* timer handler */
add_timer(&aup->timer);
}
static int xxs1500_pcmcia_shutdown(void)
{
/* turn off power */
au_writel(au_readl(GPIO2_PINSTATE) | (1<<14)|(1<<30),
GPIO2_OUTPUT);
au_sync_delay(100);
/* assert reset */
au_writel(au_readl(GPIO2_PINSTATE) | (1<<4)|(1<<20),
GPIO2_OUTPUT);
au_sync_delay(100);
return 0;
}
/*
* Initialize the interface.
*
* When the device powers up, the clocks are disabled and the
* mac is in reset state. When the interface is closed, we
* do the same -- reset the device and disable the clocks to
* conserve power. Thus, whenever au1000_init() is called,
* the device should already be in reset state.
*/
static int au1000_init(struct net_device *dev)
{
struct au1000_private *aup = (struct au1000_private *) dev->priv;
u32 flags;
int i;
u32 control;
u16 link, speed;
if (au1000_debug > 4)
printk("%s: au1000_init\n", dev->name);
spin_lock_irqsave(&aup->lock, flags);
/* bring the device out of reset */
*aup->enable = MAC_EN_CLOCK_ENABLE;
au_sync_delay(2);
*aup->enable = MAC_EN_RESET0 | MAC_EN_RESET1 |
MAC_EN_RESET2 | MAC_EN_CLOCK_ENABLE;
au_sync_delay(20);
aup->mac->control = 0;
aup->tx_head = (aup->tx_dma_ring[0]->buff_stat & 0xC) >> 2;
aup->tx_tail = aup->tx_head;
aup->rx_head = (aup->rx_dma_ring[0]->buff_stat & 0xC) >> 2;
aup->mac->mac_addr_high = dev->dev_addr[5]<<8 | dev->dev_addr[4];
aup->mac->mac_addr_low = dev->dev_addr[3]<<24 | dev->dev_addr[2]<<16 |
dev->dev_addr[1]<<8 | dev->dev_addr[0];
for (i = 0; i < NUM_RX_DMA; i++) {
aup->rx_dma_ring[i]->buff_stat |= RX_DMA_ENABLE;
}
au_sync();
#ifdef CLEANUP
aup->phy_ops->phy_status(dev, aup->phy_addr, &link, &speed);
#endif
control = MAC_DISABLE_RX_OWN | MAC_RX_ENABLE | MAC_TX_ENABLE;
#ifndef CONFIG_CPU_LITTLE_ENDIAN
control |= MAC_BIG_ENDIAN;
#endif
if (link && (dev->if_port == IF_PORT_100BASEFX)) {
control |= MAC_FULL_DUPLEX;
}
aup->mac->control = control;
aup->mac->vlan1_tag = 0x8100; /* activate vlan support */
au_sync();
spin_unlock_irqrestore(&aup->lock, flags);
return 0;
}
int __init au1x_board_init(struct device *dev)
{
int ret = -ENODEV;
bcsr->pcmcia = 0; /* turn off power, if it's not already off */
au_sync_delay(2);
ret = au1x00_pcmcia_socket_probe(dev, &db1x00_pcmcia_ops, 0, 2);
return ret;
}
static void pb1200mmc1_set_power(void *mmc_host, int state)
{
if (state)
bcsr->board |= BCSR_BOARD_SD1PWR;
else
bcsr->board &= ~BCSR_BOARD_SD1PWR;
au_sync_delay(1);
}
static int
xxs1500_pcmcia_configure_socket(const struct pcmcia_configure *configure)
{
if(configure->sock > PCMCIA_MAX_SOCK) return -1;
DEBUG("Vcc %dV Vpp %dV, reset %d\n",
configure->vcc, configure->vpp, configure->reset);
switch(configure->vcc){
case 33: /* Vcc 3.3V */
/* turn on power */
DEBUG("turn on power\n");
au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<14))|(1<<30),
GPIO2_OUTPUT);
au_sync_delay(100);
break;
case 50: /* Vcc 5V */
default: /* what's this ? */
printk(KERN_ERR "au1x00_cs: unsupported VCC\n");
case 0: /* Vcc 0 */
/* turn off power */
au_sync_delay(100);
au_writel(au_readl(GPIO2_PINSTATE) | (1<<14)|(1<<30),
GPIO2_OUTPUT);
break;
}
if (!configure->reset) {
DEBUG("deassert reset\n");
au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<4))|(1<<20),
GPIO2_OUTPUT);
au_sync_delay(100);
au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<5))|(1<<21),
GPIO2_OUTPUT);
}
else {
DEBUG("assert reset\n");
au_writel(au_readl(GPIO2_PINSTATE) | (1<<4)|(1<<20),
GPIO2_OUTPUT);
}
au_sync_delay(100);
return 0;
}
static void enable_rx_tx(struct net_device *dev)
{
struct au1000_private *aup = (struct au1000_private *) dev->priv;
if (au1000_debug > 4)
printk(KERN_INFO "%s: enable_rx_tx\n", dev->name);
aup->mac->control |= (MAC_RX_ENABLE | MAC_TX_ENABLE);
au_sync_delay(10);
}
static void hard_stop(struct net_device *dev)
{
struct au1000_private *aup = (struct au1000_private *) dev->priv;
if (au1000_debug > 4)
printk(KERN_INFO "%s: hard stop\n", dev->name);
aup->mac->control &= ~(MAC_RX_ENABLE | MAC_TX_ENABLE);
au_sync_delay(10);
}
static void enable_mac(struct net_device *dev, int force_reset)
{
unsigned long flags;
struct au1000_private *aup = netdev_priv(dev);
spin_lock_irqsave(&aup->lock, flags);
if(force_reset || (!aup->mac_enabled)) {
*aup->enable = MAC_EN_CLOCK_ENABLE;
au_sync_delay(2);
*aup->enable = (MAC_EN_RESET0 | MAC_EN_RESET1 | MAC_EN_RESET2
| MAC_EN_CLOCK_ENABLE);
au_sync_delay(2);
aup->mac_enabled = 1;
}
spin_unlock_irqrestore(&aup->lock, flags);
}
static void reset_mac(struct net_device *dev)
{
u32 flags;
struct au1000_private *aup = (struct au1000_private *) dev->priv;
if (au1000_debug > 4)
printk(KERN_INFO "%s: reset mac, aup %x\n",
dev->name, (unsigned)aup);
spin_lock_irqsave(&aup->lock, flags);
del_timer(&aup->timer);
hard_stop(dev);
*aup->enable = MAC_EN_CLOCK_ENABLE;
au_sync_delay(2);
*aup->enable = 0;
au_sync_delay(2);
aup->tx_full = 0;
spin_unlock_irqrestore(&aup->lock, flags);
}
static void au1xmmc_set_power(struct au1xmmc_host *host, int state)
{
u32 val = au1xmmc_card_table[host->id].bcsrpwr;
bcsr->board &= ~val;
if (state) bcsr->board |= val;
au_sync_delay(1);
}
static int au1k_init(struct net_device *dev)
{
struct au1k_private *aup = (struct au1k_private *) dev->priv;
int i;
u32 control;
u32 ring_address;
/* bring the device out of reset */
control = 0xe; /* coherent, clock enable, one half system clock */
#ifndef CONFIG_CPU_LITTLE_ENDIAN
control |= 1;
#endif
aup->tx_head = 0;
aup->tx_tail = 0;
aup->rx_head = 0;
for (i=0; i<NUM_IR_DESC; i++) {
aup->rx_ring[i]->flags = AU_OWN;
}
writel(control, IR_INTERFACE_CONFIG);
au_sync_delay(10);
writel(read_ir_reg(IR_ENABLE) & ~0x8000, IR_ENABLE); /* disable PHY */
au_sync_delay(1);
writel(MAX_BUF_SIZE, IR_MAX_PKT_LEN);
ring_address = (u32)virt_to_phys((void *)aup->rx_ring[0]);
writel(ring_address >> 26, IR_RING_BASE_ADDR_H);
writel((ring_address >> 10) & 0xffff, IR_RING_BASE_ADDR_L);
writel(RING_SIZE_64<<8 | RING_SIZE_64<<12, IR_RING_SIZE);
writel(1<<2 | IR_ONE_PIN, IR_CONFIG_2); /* 48MHz */
writel(0, IR_RING_ADDR_CMPR);
au1k_irda_set_speed(dev, 9600);
return 0;
}
static inline void FLUSH_FIFO(struct au1xmmc_host *host)
{
u32 val = au_readl(HOST_CONFIG2(host));
au_writel(val | SD_CONFIG2_FF, HOST_CONFIG2(host));
au_sync_delay(1);
val &= ~SD_CONFIG2_DF;
au_writel(val, HOST_CONFIG2(host));
au_sync();
}
static inline void FLUSH_FIFO(struct au1xmmc_host *host)
{
u32 val = au_readl(HOST_CONFIG2(host));
au_writel(val | SD_CONFIG2_FF, HOST_CONFIG2(host));
au_sync_delay(1);
/* SEND_STOP will turn off clock control - this re-enables it */
val &= ~SD_CONFIG2_DF;
au_writel(val, HOST_CONFIG2(host));
au_sync();
}
static void reset_mac(struct net_device *dev)
{
int i;
u32 flags;
struct au1000_private *aup = (struct au1000_private *) dev->priv;
if (au1000_debug > 4)
printk(KERN_INFO "%s: reset mac, aup %x\n",
dev->name, (unsigned)aup);
spin_lock_irqsave(&aup->lock, flags);
del_timer(&aup->timer);
hard_stop(dev);
#ifdef CONFIG_BCM5222_DUAL_PHY
if (aup->mac_id != 0) {
#endif
/* If BCM5222, we can't leave MAC0 in reset because then
* we can't access the dual phy for ETH1 */
*aup->enable = MAC_EN_CLOCK_ENABLE;
au_sync_delay(2);
*aup->enable = 0;
au_sync_delay(2);
#ifdef CONFIG_BCM5222_DUAL_PHY
}
#endif
aup->tx_full = 0;
for (i = 0; i < NUM_RX_DMA; i++) {
/* reset control bits */
aup->rx_dma_ring[i]->buff_stat &= ~0xf;
}
for (i = 0; i < NUM_TX_DMA; i++) {
/* reset control bits */
aup->tx_dma_ring[i]->buff_stat &= ~0xf;
}
spin_unlock_irqrestore(&aup->lock, flags);
}
void __init pcibios_fixup(void)
{
#ifdef CONFIG_PCI_PB1000_COMPAT
unsigned long pci_mem_start = (unsigned long) PCI_MEM_START;
writel(0, PCI_BRIDGE_CONFIG); // set extend byte to 0
writel(0, SDRAM_MBAR); // set mbar to 0
writel(0x2, SDRAM_CMD); // enable memory accesses
au_sync_delay(1);
// set extend byte to mbar of ext slot
writel(((pci_mem_start >> 24) & 0xff) |
(1 << 8 | 1 << 9 | 1 << 10 | 1 << 27), PCI_BRIDGE_CONFIG);
DBG("Set bridge config to %x\n", readl(PCI_BRIDGE_CONFIG));
#endif /* CONFIG_PCI_PB1000_COMPAT */
}
/*
* Apply power to card slot.
*/
void mmc_power_on(int _n_)
{
BCSR * const bcsr = (BCSR *)BCSR_KSEG1_ADDR;
unsigned long mmc_pwr, board_specific;
if (_n_) {
mmc_pwr = BCSR_BOARD_SD1_PWR;
} else {
mmc_pwr = BCSR_BOARD_SD0_PWR;
}
board_specific = au_readl((unsigned long)(&bcsr->specific));
board_specific |= mmc_pwr;
au_writel(board_specific, (int)(&bcsr->specific));
au_sync_delay(1);
}
static void db1x00_pcmcia_shutdown(struct au1000_pcmcia_socket *skt)
{
bcsr->pcmcia = 0; /* turn off power */
au_sync_delay(2);
}
static int
db1x00_pcmcia_configure_socket(struct au1000_pcmcia_socket *skt, struct socket_state_t *state)
{
u16 pwr;
int sock = skt->nr;
debug("config_skt %d Vcc %dV Vpp %dV, reset %d\n",
sock, state->Vcc, state->Vpp,
state->flags & SS_RESET);
/* pcmcia reg was set to zero at init time. Be careful when
* initializing a socket not to wipe out the settings of the
* other socket.
*/
pwr = bcsr->pcmcia;
pwr &= ~(0xf << sock*8); /* clear voltage settings */
state->Vpp = 0;
switch(state->Vcc){
case 0: /* Vcc 0 */
pwr |= SET_VCC_VPP(0,0,sock);
break;
case 50: /* Vcc 5V */
switch(state->Vpp) {
case 0:
pwr |= SET_VCC_VPP(2,0,sock);
break;
case 50:
pwr |= SET_VCC_VPP(2,1,sock);
break;
case 12:
pwr |= SET_VCC_VPP(2,2,sock);
break;
case 33:
default:
pwr |= SET_VCC_VPP(0,0,sock);
printk("%s: bad Vcc/Vpp (%d:%d)\n",
__FUNCTION__,
state->Vcc,
state->Vpp);
break;
}
break;
case 33: /* Vcc 3.3V */
switch(state->Vpp) {
case 0:
pwr |= SET_VCC_VPP(1,0,sock);
break;
case 12:
pwr |= SET_VCC_VPP(1,2,sock);
break;
case 33:
pwr |= SET_VCC_VPP(1,1,sock);
break;
case 50:
default:
pwr |= SET_VCC_VPP(0,0,sock);
printk("%s: bad Vcc/Vpp (%d:%d)\n",
__FUNCTION__,
state->Vcc,
state->Vpp);
break;
}
break;
default: /* what's this ? */
pwr |= SET_VCC_VPP(0,0,sock);
printk(KERN_ERR "%s: bad Vcc %d\n",
__FUNCTION__, state->Vcc);
break;
}
bcsr->pcmcia = pwr;
au_sync_delay(300);
if (sock == 0) {
if (!(state->flags & SS_RESET)) {
pwr |= BCSR_PCMCIA_PC0DRVEN;
bcsr->pcmcia = pwr;
au_sync_delay(300);
pwr |= BCSR_PCMCIA_PC0RST;
bcsr->pcmcia = pwr;
au_sync_delay(100);
}
else {
pwr &= ~(BCSR_PCMCIA_PC0RST | BCSR_PCMCIA_PC0DRVEN);
bcsr->pcmcia = pwr;
au_sync_delay(100);
}
}
else {
if (!(state->flags & SS_RESET)) {
pwr |= BCSR_PCMCIA_PC1DRVEN;
bcsr->pcmcia = pwr;
au_sync_delay(300);
pwr |= BCSR_PCMCIA_PC1RST;
bcsr->pcmcia = pwr;
au_sync_delay(100);
}
else {
pwr &= ~(BCSR_PCMCIA_PC1RST | BCSR_PCMCIA_PC1DRVEN);
bcsr->pcmcia = pwr;
au_sync_delay(100);
}
}
return 0;
}
static int __init au1000_pcmcia_driver_init(void)
{
servinfo_t info;
struct pcmcia_init pcmcia_init;
struct pcmcia_state state;
unsigned int i;
unsigned long timing3;
printk("\nAu1x00 PCMCIA (CS release %s)\n", CS_RELEASE);
CardServices(GetCardServicesInfo, &info);
if(info.Revision!=CS_RELEASE_CODE){
printk(KERN_ERR "Card Services release codes do not match\n");
return -1;
}
#ifdef CONFIG_MIPS_PB1000
pcmcia_low_level=&pb1000_pcmcia_ops;
#elif defined(CONFIG_MIPS_PB1500)
pcmcia_low_level=&pb1500_pcmcia_ops;
#else
#error Unsupported AU1000 board.
#endif
pcmcia_init.handler=au1000_pcmcia_interrupt;
if((socket_count=pcmcia_low_level->init(&pcmcia_init))<0) {
printk(KERN_ERR "Unable to initialize PCMCIA service.\n");
return -EIO;
}
/* setup the static bus controller */
timing3 = 0x100e3a07;
writel(0x00000002, MEM_STCFG3); /* type = PCMCIA */
writel(timing3, MEM_STTIME3);
writel(0x10000000, MEM_STADDR3); /* any PCMCIA select */
au_sync_delay(1);
pcmcia_socket =
kmalloc(sizeof(struct au1000_pcmcia_socket) * socket_count,
GFP_KERNEL);
if (!pcmcia_socket) {
printk(KERN_ERR "Card Services can't get memory \n");
return -1;
}
memset(pcmcia_socket, 0,
sizeof(struct au1000_pcmcia_socket) * socket_count);
for(i=0; i < socket_count; i++) {
if(pcmcia_low_level->socket_state(i, &state)<0){
printk(KERN_ERR "Unable to get PCMCIA status\n");
return -EIO;
}
pcmcia_socket[i].k_state=state;
pcmcia_socket[i].cs_state.csc_mask=SS_DETECT;
if (i == 0) {
pcmcia_socket[i].virt_io =
(u32)ioremap(0xC0000000, 0x1000);
pcmcia_socket[i].phys_attr = 0xC4000000;
pcmcia_socket[i].phys_mem = 0xC8000000;
}
else {
printk(KERN_ERR "au1000: socket 1 not supported\n");
return 1;
}
}
/* Only advertise as many sockets as we can detect: */
if(register_ss_entry(socket_count, &au1000_pcmcia_operations)<0){
printk(KERN_ERR "Unable to register socket service routine\n");
return -ENXIO;
}
/* Start the event poll timer.
* It will reschedule by itself afterwards.
*/
au1000_pcmcia_poll_event(0);
DEBUG(1, "au1000: initialization complete\n");
return 0;
} /* au1000_pcmcia_driver_init() */
static int __init
au1000_probe1(struct net_device *dev, long ioaddr, int irq, int port_num)
{
static unsigned version_printed = 0;
struct au1000_private *aup = NULL;
int i, retval = 0;
db_dest_t *pDB, *pDBfree;
char *pmac, *argptr;
char ethaddr[6];
if (!request_region(ioaddr, MAC_IOSIZE, "Au1000 ENET")) {
return -ENODEV;
}
if (version_printed++ == 0) printk(version);
if (!dev) {
dev = init_etherdev(0, sizeof(struct au1000_private));
}
if (!dev) {
printk (KERN_ERR "au1000 eth: init_etherdev failed\n");
return -ENODEV;
}
printk("%s: Au1xxx ethernet found at 0x%lx, irq %d\n",
dev->name, ioaddr, irq);
/* Initialize our private structure */
if (dev->priv == NULL) {
aup = (struct au1000_private *)
kmalloc(sizeof(*aup), GFP_KERNEL);
if (aup == NULL) {
retval = -ENOMEM;
goto free_region;
}
dev->priv = aup;
}
aup = dev->priv;
memset(aup, 0, sizeof(*aup));
/* Allocate the data buffers */
aup->vaddr = (u32)dma_alloc(MAX_BUF_SIZE *
(NUM_TX_BUFFS+NUM_RX_BUFFS), &aup->dma_addr);
if (!aup->vaddr) {
retval = -ENOMEM;
goto free_region;
}
/* aup->mac is the base address of the MAC's registers */
aup->mac = (volatile mac_reg_t *)((unsigned long)ioaddr);
/* Setup some variables for quick register address access */
switch (ioaddr) {
case AU1000_ETH0_BASE:
case AU1500_ETH0_BASE:
/* check env variables first */
if (!get_ethernet_addr(ethaddr)) {
memcpy(au1000_mac_addr, ethaddr, sizeof(dev->dev_addr));
} else {
/* Check command line */
argptr = prom_getcmdline();
if ((pmac = strstr(argptr, "ethaddr=")) == NULL) {
printk(KERN_INFO "%s: No mac address found\n",
dev->name);
/* use the hard coded mac addresses */
} else {
str2eaddr(ethaddr, pmac + strlen("ethaddr="));
memcpy(au1000_mac_addr, ethaddr,
sizeof(dev->dev_addr));
}
}
if (ioaddr == AU1000_ETH0_BASE)
aup->enable = (volatile u32 *)
((unsigned long)AU1000_MAC0_ENABLE);
else
aup->enable = (volatile u32 *)
((unsigned long)AU1500_MAC0_ENABLE);
memcpy(dev->dev_addr, au1000_mac_addr, sizeof(dev->dev_addr));
setup_hw_rings(aup, MAC0_RX_DMA_ADDR, MAC0_TX_DMA_ADDR);
break;
case AU1000_ETH1_BASE:
case AU1500_ETH1_BASE:
if (ioaddr == AU1000_ETH1_BASE)
aup->enable = (volatile u32 *)
((unsigned long)AU1000_MAC1_ENABLE);
else
aup->enable = (volatile u32 *)
((unsigned long)AU1500_MAC1_ENABLE);
memcpy(dev->dev_addr, au1000_mac_addr, sizeof(dev->dev_addr));
dev->dev_addr[4] += 0x10;
setup_hw_rings(aup, MAC1_RX_DMA_ADDR, MAC1_TX_DMA_ADDR);
break;
default:
printk(KERN_ERR "%s: bad ioaddr\n", dev->name);
break;
}
aup->phy_addr = PHY_ADDRESS;
/* bring the device out of reset, otherwise probing the mii
* will hang */
*aup->enable = MAC_EN_CLOCK_ENABLE;
au_sync_delay(2);
*aup->enable = MAC_EN_RESET0 | MAC_EN_RESET1 |
MAC_EN_RESET2 | MAC_EN_CLOCK_ENABLE;
au_sync_delay(2);
if (mii_probe(dev) != 0) {
goto free_region;
}
pDBfree = NULL;
/* setup the data buffer descriptors and attach a buffer to each one */
pDB = aup->db;
for (i=0; i<(NUM_TX_BUFFS+NUM_RX_BUFFS); i++) {
pDB->pnext = pDBfree;
pDBfree = pDB;
pDB->vaddr = (u32 *)((unsigned)aup->vaddr + MAX_BUF_SIZE*i);
pDB->dma_addr = (dma_addr_t)virt_to_bus(pDB->vaddr);
pDB++;
}
aup->pDBfree = pDBfree;
for (i=0; i<NUM_RX_DMA; i++) {
pDB = GetFreeDB(aup);
if (!pDB) goto free_region;
aup->rx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr;
aup->rx_db_inuse[i] = pDB;
}
for (i=0; i<NUM_TX_DMA; i++) {
pDB = GetFreeDB(aup);
if (!pDB) goto free_region;
aup->tx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr;
aup->tx_dma_ring[i]->len = 0;
aup->tx_db_inuse[i] = pDB;
}
spin_lock_init(&aup->lock);
dev->base_addr = ioaddr;
dev->irq = irq;
dev->open = au1000_open;
dev->hard_start_xmit = au1000_tx;
dev->stop = au1000_close;
dev->get_stats = au1000_get_stats;
dev->set_multicast_list = &set_rx_mode;
dev->do_ioctl = &au1000_ioctl;
dev->set_config = &au1000_set_config;
dev->tx_timeout = au1000_tx_timeout;
dev->watchdog_timeo = ETH_TX_TIMEOUT;
/* Fill in the fields of the device structure with ethernet values. */
ether_setup(dev);
/*
* The boot code uses the ethernet controller, so reset it to start
* fresh. au1000_init() expects that the device is in reset state.
*/
reset_mac(dev);
return 0;
free_region:
release_region(ioaddr, MAC_IOSIZE);
unregister_netdev(dev);
if (aup->vaddr)
dma_free((void *)aup->vaddr,
MAX_BUF_SIZE * (NUM_TX_BUFFS+NUM_RX_BUFFS));
if (dev->priv != NULL)
kfree(dev->priv);
printk(KERN_ERR "%s: au1000_probe1 failed. Returns %d\n",
dev->name, retval);
kfree(dev);
return retval;
}
static int pm_do_freq(ctl_table * ctl, int write, struct file *file,
void *buffer, size_t * len)
{
int retval = 0, i;
unsigned long val, pll;
#define TMPBUFLEN 64
#define MAX_CPU_FREQ 396
char buf[TMPBUFLEN], *p;
unsigned long flags, intc0_mask, intc1_mask;
unsigned long old_baud_base, old_cpu_freq, baud_rate, old_clk,
old_refresh;
unsigned long new_baud_base, new_cpu_freq, new_clk, new_refresh;
spin_lock_irqsave(&pm_lock, flags);
if (!write) {
*len = 0;
} else {
/* Parse the new frequency */
if (*len > TMPBUFLEN - 1) {
spin_unlock_irqrestore(&pm_lock, flags);
return -EFAULT;
}
if (copy_from_user(buf, buffer, *len)) {
spin_unlock_irqrestore(&pm_lock, flags);
return -EFAULT;
}
buf[*len] = 0;
p = buf;
val = simple_strtoul(p, &p, 0);
if (val > MAX_CPU_FREQ) {
spin_unlock_irqrestore(&pm_lock, flags);
return -EFAULT;
}
pll = val / 12;
if ((pll > 33) || (pll < 7)) { /* 396 MHz max, 84 MHz min */
/* revisit this for higher speed cpus */
spin_unlock_irqrestore(&pm_lock, flags);
return -EFAULT;
}
old_baud_base = get_au1x00_uart_baud_base();
old_cpu_freq = get_au1x00_speed();
new_cpu_freq = pll * 12 * 1000000;
new_baud_base = (new_cpu_freq / (2 * ((int)(au_readl(SYS_POWERCTRL)&0x03) + 2) * 16));
set_au1x00_speed(new_cpu_freq);
set_au1x00_uart_baud_base(new_baud_base);
old_refresh = au_readl(MEM_SDREFCFG) & 0x1ffffff;
new_refresh =
((old_refresh * new_cpu_freq) /
old_cpu_freq) | (au_readl(MEM_SDREFCFG) & ~0x1ffffff);
au_writel(pll, SYS_CPUPLL);
au_sync_delay(1);
au_writel(new_refresh, MEM_SDREFCFG);
au_sync_delay(1);
for (i = 0; i < 4; i++) {
if (au_readl
(UART_BASE + UART_MOD_CNTRL +
i * 0x00100000) == 3) {
old_clk =
au_readl(UART_BASE + UART_CLK +
i * 0x00100000);
// baud_rate = baud_base/clk
baud_rate = old_baud_base / old_clk;
/* we won't get an exact baud rate and the error
* could be significant enough that our new
* calculation will result in a clock that will
* give us a baud rate that's too far off from
* what we really want.
*/
if (baud_rate > 100000)
baud_rate = 115200;
else if (baud_rate > 50000)
baud_rate = 57600;
else if (baud_rate > 30000)
baud_rate = 38400;
else if (baud_rate > 17000)
baud_rate = 19200;
else
(baud_rate = 9600);
// new_clk = new_baud_base/baud_rate
new_clk = new_baud_base / baud_rate;
au_writel(new_clk,
UART_BASE + UART_CLK +
i * 0x00100000);
au_sync_delay(10);
}
}
}
/* We don't want _any_ interrupts other than
* match20. Otherwise our calibrate_delay()
* calculation will be off, potentially a lot.
*/
intc0_mask = save_local_and_disable(0);
intc1_mask = save_local_and_disable(1);
local_enable_irq(AU1000_TOY_MATCH2_INT);
spin_unlock_irqrestore(&pm_lock, flags);
calibrate_delay();
restore_local_and_enable(0, intc0_mask);
restore_local_and_enable(1, intc1_mask);
return retval;
}
static void
au1000_adjust_link(struct net_device *dev)
{
struct au1000_private *aup = netdev_priv(dev);
struct phy_device *phydev = aup->phy_dev;
unsigned long flags;
int status_change = 0;
BUG_ON(!aup->phy_dev);
spin_lock_irqsave(&aup->lock, flags);
if (phydev->link && (aup->old_speed != phydev->speed)) {
// speed changed
switch(phydev->speed) {
case SPEED_10:
case SPEED_100:
break;
default:
printk(KERN_WARNING
"%s: Speed (%d) is not 10/100 ???\n",
dev->name, phydev->speed);
break;
}
aup->old_speed = phydev->speed;
status_change = 1;
}
if (phydev->link && (aup->old_duplex != phydev->duplex)) {
// duplex mode changed
/* switching duplex mode requires to disable rx and tx! */
hard_stop(dev);
if (DUPLEX_FULL == phydev->duplex)
aup->mac->control = ((aup->mac->control
| MAC_FULL_DUPLEX)
& ~MAC_DISABLE_RX_OWN);
else
aup->mac->control = ((aup->mac->control
& ~MAC_FULL_DUPLEX)
| MAC_DISABLE_RX_OWN);
au_sync_delay(1);
enable_rx_tx(dev);
aup->old_duplex = phydev->duplex;
status_change = 1;
}
if(phydev->link != aup->old_link) {
// link state changed
if (!phydev->link) {
/* link went down */
aup->old_speed = 0;
aup->old_duplex = -1;
}
aup->old_link = phydev->link;
status_change = 1;
}
spin_unlock_irqrestore(&aup->lock, flags);
if (status_change) {
if (phydev->link)
printk(KERN_INFO "%s: link up (%d/%s)\n",
dev->name, phydev->speed,
DUPLEX_FULL == phydev->duplex ? "Full" : "Half");
else
printk(KERN_INFO "%s: link down\n", dev->name);
}
}
static void
db1x00_pcmcia_socket_state(struct au1000_pcmcia_socket *skt, struct pcmcia_state *state)
{
u32 inserted;
unsigned char vs;
state->ready = 0;
state->vs_Xv = 0;
state->vs_3v = 0;
state->detect = 0;
switch (skt->nr) {
case 0:
vs = bcsr->status & 0x3;
#if defined(CONFIG_MIPS_DB1200) || defined(CONFIG_MIPS_PB1200)
inserted = BOARD_CARD_INSERTED(0);
#else
inserted = !(bcsr->status & (1<<4));
#endif
break;
case 1:
vs = (bcsr->status & 0xC)>>2;
#if defined(CONFIG_MIPS_DB1200) || defined(CONFIG_MIPS_PB1200)
inserted = BOARD_CARD_INSERTED(1);
#else
inserted = !(bcsr->status & (1<<5));
#endif
break;
default:/* should never happen */
return;
}
if (inserted)
debug("db1x00 socket %d: inserted %d, vs %d pcmcia %x\n",
skt->nr, inserted, vs, bcsr->pcmcia);
if (inserted) {
switch (vs) {
case 0:
case 2:
state->vs_3v=1;
break;
case 3: /* 5V */
break;
default:
/* return without setting 'detect' */
printk(KERN_ERR "db1x00 bad VS (%d)\n",
vs);
}
state->detect = 1;
state->ready = 1;
}
else {
/* if the card was previously inserted and then ejected,
* we should turn off power to it
*/
if ((skt->nr == 0) && (bcsr->pcmcia & BCSR_PCMCIA_PC0RST)) {
bcsr->pcmcia &= ~(BCSR_PCMCIA_PC0RST |
BCSR_PCMCIA_PC0DRVEN |
BCSR_PCMCIA_PC0VPP |
BCSR_PCMCIA_PC0VCC);
au_sync_delay(10);
}
else if ((skt->nr == 1) && bcsr->pcmcia & BCSR_PCMCIA_PC1RST) {
bcsr->pcmcia &= ~(BCSR_PCMCIA_PC1RST |
BCSR_PCMCIA_PC1DRVEN |
BCSR_PCMCIA_PC1VPP |
BCSR_PCMCIA_PC1VCC);
au_sync_delay(10);
}
}
state->bvd1=1;
state->bvd2=1;
state->wrprot=0;
}
void __init board_setup(void)
{
u32 pin_func, static_cfg0;
u32 sys_freqctrl, sys_clksrc;
u32 prid = read_c0_prid();
rtc_ops = &no_rtc_ops;
// set AUX clock to 12MHz * 8 = 96 MHz
au_writel(8, SYS_AUXPLL);
au_writel(0, SYS_PINSTATERD);
udelay(100);
#if defined (CONFIG_USB_OHCI) || defined (CONFIG_AU1X00_USB_DEVICE)
/* zero and disable FREQ2 */
sys_freqctrl = au_readl(SYS_FREQCTRL0);
sys_freqctrl &= ~0xFFF00000;
au_writel(sys_freqctrl, SYS_FREQCTRL0);
/* zero and disable USBH/USBD clocks */
sys_clksrc = au_readl(SYS_CLKSRC);
sys_clksrc &= ~0x00007FE0;
au_writel(sys_clksrc, SYS_CLKSRC);
sys_freqctrl = au_readl(SYS_FREQCTRL0);
sys_freqctrl &= ~0xFFF00000;
sys_clksrc = au_readl(SYS_CLKSRC);
sys_clksrc &= ~0x00007FE0;
switch (prid & 0x000000FF)
{
case 0x00: /* DA */
case 0x01: /* HA */
case 0x02: /* HB */
/* CPU core freq to 48MHz to slow it way down... */
au_writel(4, SYS_CPUPLL);
/*
* Setup 48MHz FREQ2 from CPUPLL for USB Host
*/
/* FRDIV2=3 -> div by 8 of 384MHz -> 48MHz */
sys_freqctrl |= ((3<<22) | (1<<21) | (0<<20));
au_writel(sys_freqctrl, SYS_FREQCTRL0);
/* CPU core freq to 384MHz */
au_writel(0x20, SYS_CPUPLL);
printk("Au1000: 48MHz OHCI workaround enabled\n");
break;
default: /* HC and newer */
// FREQ2 = aux/2 = 48 MHz
sys_freqctrl |= ((0<<22) | (1<<21) | (1<<20));
au_writel(sys_freqctrl, SYS_FREQCTRL0);
break;
}
/*
* Route 48MHz FREQ2 into USB Host and/or Device
*/
#ifdef CONFIG_USB_OHCI
sys_clksrc |= ((4<<12) | (0<<11) | (0<<10));
#endif
#ifdef CONFIG_AU1X00_USB_DEVICE
sys_clksrc |= ((4<<7) | (0<<6) | (0<<5));
#endif
au_writel(sys_clksrc, SYS_CLKSRC);
// configure pins GPIO[14:9] as GPIO
pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x8080);
#ifndef CONFIG_AU1X00_USB_DEVICE
// 2nd USB port is USB host
pin_func |= 0x8000;
#endif
au_writel(pin_func, SYS_PINFUNC);
au_writel(0x2800, SYS_TRIOUTCLR);
au_writel(0x0030, SYS_OUTPUTCLR);
#endif // defined (CONFIG_USB_OHCI) || defined (CONFIG_AU1X00_USB_DEVICE)
// make gpio 15 an input (for interrupt line)
pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x100);
// we don't need I2S, so make it available for GPIO[31:29]
pin_func |= (1<<5);
au_writel(pin_func, SYS_PINFUNC);
au_writel(0x8000, SYS_TRIOUTCLR);
static_cfg0 = au_readl(MEM_STCFG0) & (u32)(~0xc00);
au_writel(static_cfg0, MEM_STCFG0);
// configure RCE2* for LCD
au_writel(0x00000004, MEM_STCFG2);
// MEM_STTIME2
au_writel(0x09000000, MEM_STTIME2);
// Set 32-bit base address decoding for RCE2*
au_writel(0x10003ff0, MEM_STADDR2);
// PCI CPLD setup
// expand CE0 to cover PCI
au_writel(0x11803e40, MEM_STADDR1);
// burst visibility on
au_writel(au_readl(MEM_STCFG0) | 0x1000, MEM_STCFG0);
au_writel(0x83, MEM_STCFG1); // ewait enabled, flash timing
au_writel(0x33030a10, MEM_STTIME1); // slower timing for FPGA
/* setup the static bus controller */
au_writel(0x00000002, MEM_STCFG3); /* type = PCMCIA */
au_writel(0x280E3D07, MEM_STTIME3); /* 250ns cycle time */
au_writel(0x10000000, MEM_STADDR3); /* any PCMCIA select */
#ifdef CONFIG_PCI
au_writel(0, PCI_BRIDGE_CONFIG); // set extend byte to 0
au_writel(0, SDRAM_MBAR); // set mbar to 0
au_writel(0x2, SDRAM_CMD); // enable memory accesses
au_sync_delay(1);
#endif
/* Enable Au1000 BCLK switching - note: sed1356 must not use
* its BCLK (Au1000 LCLK) for any timings */
switch (prid & 0x000000FF)
{
case 0x00: /* DA */
case 0x01: /* HA */
case 0x02: /* HB */
break;
default: /* HC and newer */
/* Enable sys bus clock divider when IDLE state or no bus
activity. */
au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL);
break;
}
}
static struct net_device *
au1000_probe(u32 ioaddr, int irq, int port_num)
{
static unsigned version_printed = 0;
struct au1000_private *aup = NULL;
struct net_device *dev = NULL;
db_dest_t *pDB, *pDBfree;
char *pmac, *argptr;
char ethaddr[6];
int i, err;
if (!request_region(ioaddr, MAC_IOSIZE, "Au1x00 ENET"))
return NULL;
if (version_printed++ == 0)
printk(version);
dev = alloc_etherdev(sizeof(struct au1000_private));
if (!dev) {
printk (KERN_ERR "au1000 eth: alloc_etherdev failed\n");
return NULL;
}
if ((err = register_netdev(dev))) {
printk(KERN_ERR "Au1x_eth Cannot register net device err %d\n",
err);
kfree(dev);
return NULL;
}
printk("%s: Au1x Ethernet found at 0x%x, irq %d\n",
dev->name, ioaddr, irq);
aup = dev->priv;
/* Allocate the data buffers */
aup->vaddr = (u32)dma_alloc(MAX_BUF_SIZE *
(NUM_TX_BUFFS+NUM_RX_BUFFS), &aup->dma_addr);
if (!aup->vaddr) {
kfree(dev);
release_region(ioaddr, MAC_IOSIZE);
return NULL;
}
/* aup->mac is the base address of the MAC's registers */
aup->mac = (volatile mac_reg_t *)((unsigned long)ioaddr);
/* Setup some variables for quick register address access */
if (ioaddr == iflist[0].base_addr)
{
/* check env variables first */
if (!get_ethernet_addr(ethaddr)) {
memcpy(au1000_mac_addr, ethaddr, sizeof(dev->dev_addr));
} else {
/* Check command line */
argptr = prom_getcmdline();
if ((pmac = strstr(argptr, "ethaddr=")) == NULL) {
printk(KERN_INFO "%s: No mac address found\n",
dev->name);
/* use the hard coded mac addresses */
} else {
str2eaddr(ethaddr, pmac + strlen("ethaddr="));
memcpy(au1000_mac_addr, ethaddr,
sizeof(dev->dev_addr));
}
}
aup->enable = (volatile u32 *)
((unsigned long)iflist[0].macen_addr);
memcpy(dev->dev_addr, au1000_mac_addr, sizeof(dev->dev_addr));
setup_hw_rings(aup, MAC0_RX_DMA_ADDR, MAC0_TX_DMA_ADDR);
aup->mac_id = 0;
au_macs[0] = aup;
}
else
if (ioaddr == iflist[1].base_addr)
{
aup->enable = (volatile u32 *)
((unsigned long)iflist[1].macen_addr);
memcpy(dev->dev_addr, au1000_mac_addr, sizeof(dev->dev_addr));
dev->dev_addr[4] += 0x10;
setup_hw_rings(aup, MAC1_RX_DMA_ADDR, MAC1_TX_DMA_ADDR);
aup->mac_id = 1;
au_macs[1] = aup;
}
else
{
printk(KERN_ERR "%s: bad ioaddr\n", dev->name);
}
/* bring the device out of reset, otherwise probing the mii
* will hang */
*aup->enable = MAC_EN_CLOCK_ENABLE;
au_sync_delay(2);
*aup->enable = MAC_EN_RESET0 | MAC_EN_RESET1 |
MAC_EN_RESET2 | MAC_EN_CLOCK_ENABLE;
au_sync_delay(2);
aup->mii = kmalloc(sizeof(struct mii_phy), GFP_KERNEL);
if (!aup->mii) {
printk(KERN_ERR "%s: out of memory\n", dev->name);
goto err_out;
}
aup->mii->mii_control_reg = 0;
aup->mii->mii_data_reg = 0;
if (mii_probe(dev) != 0) {
goto err_out;
}
pDBfree = NULL;
/* setup the data buffer descriptors and attach a buffer to each one */
pDB = aup->db;
for (i = 0; i < (NUM_TX_BUFFS+NUM_RX_BUFFS); i++) {
pDB->pnext = pDBfree;
pDBfree = pDB;
pDB->vaddr = (u32 *)((unsigned)aup->vaddr + MAX_BUF_SIZE*i);
pDB->dma_addr = (dma_addr_t)virt_to_bus(pDB->vaddr);
pDB++;
}
aup->pDBfree = pDBfree;
for (i = 0; i < NUM_RX_DMA; i++) {
pDB = GetFreeDB(aup);
if (!pDB) {
goto err_out;
}
aup->rx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr;
aup->rx_db_inuse[i] = pDB;
}
for (i = 0; i < NUM_TX_DMA; i++) {
pDB = GetFreeDB(aup);
if (!pDB) {
goto err_out;
}
aup->tx_dma_ring[i]->buff_stat = (unsigned)pDB->dma_addr;
aup->tx_dma_ring[i]->len = 0;
aup->tx_db_inuse[i] = pDB;
}
spin_lock_init(&aup->lock);
dev->base_addr = ioaddr;
dev->irq = irq;
dev->open = au1000_open;
dev->hard_start_xmit = au1000_tx;
dev->stop = au1000_close;
dev->get_stats = au1000_get_stats;
dev->set_multicast_list = &set_rx_mode;
dev->do_ioctl = &au1000_ioctl;
dev->set_config = &au1000_set_config;
dev->tx_timeout = au1000_tx_timeout;
dev->watchdog_timeo = ETH_TX_TIMEOUT;
/*
* The boot code uses the ethernet controller, so reset it to start
* fresh. au1000_init() expects that the device is in reset state.
*/
reset_mac(dev);
return dev;
err_out:
/* here we should have a valid dev plus aup-> register addresses
* so we can reset the mac properly.*/
reset_mac(dev);
if (aup->mii)
kfree(aup->mii);
for (i = 0; i < NUM_RX_DMA; i++) {
if (aup->rx_db_inuse[i])
ReleaseDB(aup, aup->rx_db_inuse[i]);
}
for (i = 0; i < NUM_TX_DMA; i++) {
if (aup->tx_db_inuse[i])
ReleaseDB(aup, aup->tx_db_inuse[i]);
}
dma_free((void *)aup->vaddr, MAX_BUF_SIZE *
(NUM_TX_BUFFS+NUM_RX_BUFFS));
unregister_netdev(dev);
kfree(dev);
release_region(ioaddr, MAC_IOSIZE);
return NULL;
}
