*/
#include <common.h>
+#include <asm/io.h>
+#include <cpu_func.h>
#include <malloc.h>
+#include <miiphy.h>
#include <net.h>
#include <netdev.h>
-#include <asm/io.h>
#include <pci.h>
-#include <miiphy.h>
#include <linux/delay.h>
/* Ethernet chip registers. */
#define EE_DATA_BITS 16
/* The EEPROM commands include the alway-set leading bit. */
-#define EE_EWENB_CMD (4 << addr_len)
-#define EE_WRITE_CMD (5 << addr_len)
-#define EE_READ_CMD (6 << addr_len)
-#define EE_ERASE_CMD (7 << addr_len)
+#define EE_EWENB_CMD(addr_len) (4 << (addr_len))
+#define EE_WRITE_CMD(addr_len) (5 << (addr_len))
+#define EE_READ_CMD(addr_len) (6 << (addr_len))
+#define EE_ERASE_CMD(addr_len) (7 << (addr_len))
/* Receive frame descriptors. */
struct eepro100_rxfd {
- volatile u16 status;
- volatile u16 control;
- volatile u32 link; /* struct eepro100_rxfd * */
- volatile u32 rx_buf_addr; /* void * */
- volatile u32 count;
+ u16 status;
+ u16 control;
+ u32 link; /* struct eepro100_rxfd * */
+ u32 rx_buf_addr; /* void * */
+ u32 count;
- volatile u8 data[PKTSIZE_ALIGN];
+ u8 data[PKTSIZE_ALIGN];
};
#define RFD_STATUS_C 0x8000 /* completion of received frame */
#define RFD_RX_TCO 0x0001 /* TCO indication */
/* Transmit frame descriptors */
-struct eepro100_txfd { /* Transmit frame descriptor set. */
- volatile u16 status;
- volatile u16 command;
- volatile u32 link; /* void * */
- volatile u32 tx_desc_addr; /* Always points to the tx_buf_addr element. */
- volatile s32 count;
-
- volatile u32 tx_buf_addr0; /* void *, frame to be transmitted. */
- volatile s32 tx_buf_size0; /* Length of Tx frame. */
- volatile u32 tx_buf_addr1; /* void *, frame to be transmitted. */
- volatile s32 tx_buf_size1; /* Length of Tx frame. */
+struct eepro100_txfd { /* Transmit frame descriptor set. */
+ u16 status;
+ u16 command;
+ u32 link; /* void * */
+ u32 tx_desc_addr; /* Always points to the tx_buf_addr element. */
+ s32 count;
+
+ u32 tx_buf_addr0; /* void *, frame to be transmitted. */
+ s32 tx_buf_size0; /* Length of Tx frame. */
+ u32 tx_buf_addr1; /* void *, frame to be transmitted. */
+ s32 tx_buf_size1; /* Length of Tx frame. */
};
#define TXCB_CMD_TRANSMIT 0x0004 /* transmit command */
#define TXCB_COUNT_EOF 0x8000
/* The Speedo3 Rx and Tx frame/buffer descriptors. */
-struct descriptor { /* A generic descriptor. */
- volatile u16 status;
- volatile u16 command;
- volatile u32 link; /* struct descriptor * */
+struct descriptor { /* A generic descriptor. */
+ u16 status;
+ u16 command;
+ u32 link; /* struct descriptor * */
unsigned char params[0];
};
#define TOUT_LOOP 1000000
-static struct eepro100_rxfd rx_ring[NUM_RX_DESC]; /* RX descriptor ring */
-static struct eepro100_txfd tx_ring[NUM_TX_DESC]; /* TX descriptor ring */
-static int rx_next; /* RX descriptor ring pointer */
-static int tx_next; /* TX descriptor ring pointer */
-static int tx_threshold;
-
/*
* The parameters for a CmdConfigure operation.
* There are so many options that it would be difficult to document
0x31, 0x05,
};
-static void init_rx_ring(struct eth_device *dev);
-static void purge_tx_ring(struct eth_device *dev);
-
-static void read_hw_addr(struct eth_device *dev, bd_t *bis);
-
-static int eepro100_init(struct eth_device *dev, bd_t *bis);
-static int eepro100_send(struct eth_device *dev, void *packet, int length);
-static int eepro100_recv(struct eth_device *dev);
-static void eepro100_halt(struct eth_device *dev);
+struct eepro100_priv {
+ /* RX descriptor ring */
+ struct eepro100_rxfd rx_ring[NUM_RX_DESC];
+ /* TX descriptor ring */
+ struct eepro100_txfd tx_ring[NUM_TX_DESC];
+ /* RX descriptor ring pointer */
+ int rx_next;
+ u16 rx_stat;
+ /* TX descriptor ring pointer */
+ int tx_next;
+ int tx_threshold;
+#ifdef CONFIG_DM_ETH
+ struct udevice *devno;
+#else
+ struct eth_device dev;
+ pci_dev_t devno;
+#endif
+ char *name;
+ void __iomem *iobase;
+ u8 *enetaddr;
+};
-#if defined(CONFIG_E500)
-#define bus_to_phys(a) (a)
-#define phys_to_bus(a) (a)
+#if defined(CONFIG_DM_ETH)
+#define bus_to_phys(dev, a) dm_pci_mem_to_phys((dev), (a))
+#define phys_to_bus(dev, a) dm_pci_phys_to_mem((dev), (a))
+#elif defined(CONFIG_E500)
+#define bus_to_phys(dev, a) (a)
+#define phys_to_bus(dev, a) (a)
#else
-#define bus_to_phys(a) pci_mem_to_phys((pci_dev_t)dev->priv, a)
-#define phys_to_bus(a) pci_phys_to_mem((pci_dev_t)dev->priv, a)
+#define bus_to_phys(dev, a) pci_mem_to_phys((dev), (a))
+#define phys_to_bus(dev, a) pci_phys_to_mem((dev), (a))
#endif
-static inline int INW(struct eth_device *dev, u_long addr)
+static int INW(struct eepro100_priv *priv, u_long addr)
{
- return le16_to_cpu(readw(addr + (void *)dev->iobase));
+ return le16_to_cpu(readw(addr + priv->iobase));
}
-static inline void OUTW(struct eth_device *dev, int command, u_long addr)
+static void OUTW(struct eepro100_priv *priv, int command, u_long addr)
{
- writew(cpu_to_le16(command), addr + (void *)dev->iobase);
+ writew(cpu_to_le16(command), addr + priv->iobase);
}
-static inline void OUTL(struct eth_device *dev, int command, u_long addr)
+static void OUTL(struct eepro100_priv *priv, int command, u_long addr)
{
- writel(cpu_to_le32(command), addr + (void *)dev->iobase);
+ writel(cpu_to_le32(command), addr + priv->iobase);
}
#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
-static inline int INL(struct eth_device *dev, u_long addr)
+static int INL(struct eepro100_priv *priv, u_long addr)
{
- return le32_to_cpu(readl(addr + (void *)dev->iobase));
+ return le32_to_cpu(readl(addr + priv->iobase));
}
-static int get_phyreg(struct eth_device *dev, unsigned char addr,
+static int get_phyreg(struct eepro100_priv *priv, unsigned char addr,
unsigned char reg, unsigned short *value)
{
- int cmd;
int timeout = 50;
+ int cmd;
/* read requested data */
cmd = (2 << 26) | ((addr & 0x1f) << 21) | ((reg & 0x1f) << 16);
- OUTL(dev, cmd, SCB_CTRL_MDI);
+ OUTL(priv, cmd, SCB_CTRL_MDI);
do {
udelay(1000);
- cmd = INL(dev, SCB_CTRL_MDI);
+ cmd = INL(priv, SCB_CTRL_MDI);
} while (!(cmd & (1 << 28)) && (--timeout));
if (timeout == 0)
return 0;
}
-static int set_phyreg(struct eth_device *dev, unsigned char addr,
+static int set_phyreg(struct eepro100_priv *priv, unsigned char addr,
unsigned char reg, unsigned short value)
{
- int cmd;
int timeout = 50;
+ int cmd;
/* write requested data */
cmd = (1 << 26) | ((addr & 0x1f) << 21) | ((reg & 0x1f) << 16);
- OUTL(dev, cmd | value, SCB_CTRL_MDI);
+ OUTL(priv, cmd | value, SCB_CTRL_MDI);
- while (!(INL(dev, SCB_CTRL_MDI) & (1 << 28)) && (--timeout))
+ while (!(INL(priv, SCB_CTRL_MDI) & (1 << 28)) && (--timeout))
udelay(1000);
if (timeout == 0)
* Check if given phyaddr is valid, i.e. there is a PHY connected.
* Do this by checking model value field from ID2 register.
*/
-static struct eth_device *verify_phyaddr(const char *devname,
- unsigned char addr)
+static int verify_phyaddr(struct eepro100_priv *priv, unsigned char addr)
{
- struct eth_device *dev;
- unsigned short value;
- unsigned char model;
-
- dev = eth_get_dev_by_name(devname);
- if (!dev) {
- printf("%s: no such device\n", devname);
- return NULL;
- }
+ unsigned short value, model;
+ int ret;
/* read id2 register */
- if (get_phyreg(dev, addr, MII_PHYSID2, &value) != 0) {
- printf("%s: mii read timeout!\n", devname);
- return NULL;
+ ret = get_phyreg(priv, addr, MII_PHYSID2, &value);
+ if (ret) {
+ printf("%s: mii read timeout!\n", priv->name);
+ return ret;
}
/* get model */
- model = (unsigned char)((value >> 4) & 0x003f);
-
- if (model == 0) {
- printf("%s: no PHY at address %d\n", devname, addr);
- return NULL;
+ model = (value >> 4) & 0x003f;
+ if (!model) {
+ printf("%s: no PHY at address %d\n", priv->name, addr);
+ return -EINVAL;
}
- return dev;
+ return 0;
}
static int eepro100_miiphy_read(struct mii_dev *bus, int addr, int devad,
int reg)
{
+ struct eepro100_priv *priv = bus->priv;
unsigned short value = 0;
- struct eth_device *dev;
+ int ret;
- dev = verify_phyaddr(bus->name, addr);
- if (!dev)
- return -1;
+ ret = verify_phyaddr(priv, addr);
+ if (ret)
+ return ret;
- if (get_phyreg(dev, addr, reg, &value) != 0) {
+ ret = get_phyreg(priv, addr, reg, &value);
+ if (ret) {
printf("%s: mii read timeout!\n", bus->name);
- return -1;
+ return ret;
}
return value;
static int eepro100_miiphy_write(struct mii_dev *bus, int addr, int devad,
int reg, u16 value)
{
- struct eth_device *dev;
+ struct eepro100_priv *priv = bus->priv;
+ int ret;
- dev = verify_phyaddr(bus->name, addr);
- if (!dev)
- return -1;
+ ret = verify_phyaddr(priv, addr);
+ if (ret)
+ return ret;
- if (set_phyreg(dev, addr, reg, value) != 0) {
+ ret = set_phyreg(priv, addr, reg, value);
+ if (ret) {
printf("%s: mii write timeout!\n", bus->name);
- return -1;
+ return ret;
}
return 0;
}
-
#endif
-/* Wait for the chip get the command. */
-static int wait_for_eepro100(struct eth_device *dev)
+static void init_rx_ring(struct eepro100_priv *priv)
{
+ struct eepro100_rxfd *rx_ring = priv->rx_ring;
int i;
- for (i = 0; INW(dev, SCB_CMD) & (CU_CMD_MASK | RU_CMD_MASK); i++) {
- if (i >= TOUT_LOOP)
- return 0;
+ for (i = 0; i < NUM_RX_DESC; i++) {
+ rx_ring[i].status = 0;
+ rx_ring[i].control = (i == NUM_RX_DESC - 1) ?
+ cpu_to_le16 (RFD_CONTROL_S) : 0;
+ rx_ring[i].link =
+ cpu_to_le32(phys_to_bus(priv->devno,
+ (u32)&rx_ring[(i + 1) %
+ NUM_RX_DESC]));
+ rx_ring[i].rx_buf_addr = 0xffffffff;
+ rx_ring[i].count = cpu_to_le32(PKTSIZE_ALIGN << 16);
}
- return 1;
-}
+ flush_dcache_range((unsigned long)rx_ring,
+ (unsigned long)rx_ring +
+ (sizeof(*rx_ring) * NUM_RX_DESC));
-static struct pci_device_id supported[] = {
- {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82557},
- {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82559},
- {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82559ER},
- {}
-};
+ priv->rx_next = 0;
+}
-int eepro100_initialize(bd_t *bis)
+static void purge_tx_ring(struct eepro100_priv *priv)
{
- pci_dev_t devno;
- int card_number = 0;
- struct eth_device *dev;
- u32 iobase, status;
- int idx = 0;
-
- while (1) {
- /* Find PCI device */
- devno = pci_find_devices(supported, idx++);
- if (devno < 0)
- break;
-
- pci_read_config_dword(devno, PCI_BASE_ADDRESS_0, &iobase);
- iobase &= ~0xf;
-
- debug("eepro100: Intel i82559 PCI EtherExpressPro @0x%x\n",
- iobase);
-
- pci_write_config_dword(devno, PCI_COMMAND,
- PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
-
- /* Check if I/O accesses and Bus Mastering are enabled. */
- pci_read_config_dword(devno, PCI_COMMAND, &status);
- if (!(status & PCI_COMMAND_MEMORY)) {
- printf("Error: Can not enable MEM access.\n");
- continue;
- }
-
- if (!(status & PCI_COMMAND_MASTER)) {
- printf("Error: Can not enable Bus Mastering.\n");
- continue;
- }
-
- dev = (struct eth_device *)malloc(sizeof(*dev));
- if (!dev) {
- printf("eepro100: Can not allocate memory\n");
- break;
- }
- memset(dev, 0, sizeof(*dev));
-
- sprintf(dev->name, "i82559#%d", card_number);
- dev->priv = (void *)devno; /* this have to come before bus_to_phys() */
- dev->iobase = bus_to_phys(iobase);
- dev->init = eepro100_init;
- dev->halt = eepro100_halt;
- dev->send = eepro100_send;
- dev->recv = eepro100_recv;
-
- eth_register(dev);
+ struct eepro100_txfd *tx_ring = priv->tx_ring;
-#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
- /* register mii command access routines */
- int retval;
- struct mii_dev *mdiodev = mdio_alloc();
-
- if (!mdiodev)
- return -ENOMEM;
- strncpy(mdiodev->name, dev->name, MDIO_NAME_LEN);
- mdiodev->read = eepro100_miiphy_read;
- mdiodev->write = eepro100_miiphy_write;
-
- retval = mdio_register(mdiodev);
- if (retval < 0)
- return retval;
-#endif
-
- card_number++;
+ priv->tx_next = 0;
+ priv->tx_threshold = 0x01208000;
+ memset(tx_ring, 0, sizeof(*tx_ring) * NUM_TX_DESC);
- /* Set the latency timer for value. */
- pci_write_config_byte(devno, PCI_LATENCY_TIMER, 0x20);
+ flush_dcache_range((unsigned long)tx_ring,
+ (unsigned long)tx_ring +
+ (sizeof(*tx_ring) * NUM_TX_DESC));
+}
- udelay(10 * 1000);
+/* Wait for the chip get the command. */
+static int wait_for_eepro100(struct eepro100_priv *priv)
+{
+ int i;
- read_hw_addr(dev, bis);
+ for (i = 0; INW(priv, SCB_CMD) & (CU_CMD_MASK | RU_CMD_MASK); i++) {
+ if (i >= TOUT_LOOP)
+ return 0;
}
- return card_number;
+ return 1;
}
-static int eepro100_txcmd_send(struct eth_device *dev,
+static int eepro100_txcmd_send(struct eepro100_priv *priv,
struct eepro100_txfd *desc)
{
u16 rstat;
int i = 0;
- if (!wait_for_eepro100(dev))
+ flush_dcache_range((unsigned long)desc,
+ (unsigned long)desc + sizeof(*desc));
+
+ if (!wait_for_eepro100(priv))
return -ETIMEDOUT;
- OUTL(dev, phys_to_bus((u32)desc), SCB_POINTER);
- OUTW(dev, SCB_M | CU_START, SCB_CMD);
+ OUTL(priv, phys_to_bus(priv->devno, (u32)desc), SCB_POINTER);
+ OUTW(priv, SCB_M | CU_START, SCB_CMD);
while (true) {
+ invalidate_dcache_range((unsigned long)desc,
+ (unsigned long)desc + sizeof(*desc));
rstat = le16_to_cpu(desc->status);
if (rstat & CONFIG_SYS_STATUS_C)
break;
if (i++ >= TOUT_LOOP) {
- printf("%s: Tx error buffer not ready\n", dev->name);
+ printf("%s: Tx error buffer not ready\n", priv->name);
return -EINVAL;
}
}
+ invalidate_dcache_range((unsigned long)desc,
+ (unsigned long)desc + sizeof(*desc));
rstat = le16_to_cpu(desc->status);
if (!(rstat & CONFIG_SYS_STATUS_OK)) {
return 0;
}
-static int eepro100_init(struct eth_device *dev, bd_t *bis)
+/* SROM Read. */
+static int read_eeprom(struct eepro100_priv *priv, int location, int addr_len)
+{
+ unsigned short retval = 0;
+ int read_cmd = location | EE_READ_CMD(addr_len);
+ int i;
+
+ OUTW(priv, EE_ENB & ~EE_CS, SCB_EEPROM);
+ OUTW(priv, EE_ENB, SCB_EEPROM);
+
+ /* Shift the read command bits out. */
+ for (i = 12; i >= 0; i--) {
+ short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
+
+ OUTW(priv, EE_ENB | dataval, SCB_EEPROM);
+ udelay(1);
+ OUTW(priv, EE_ENB | dataval | EE_SHIFT_CLK, SCB_EEPROM);
+ udelay(1);
+ }
+ OUTW(priv, EE_ENB, SCB_EEPROM);
+
+ for (i = 15; i >= 0; i--) {
+ OUTW(priv, EE_ENB | EE_SHIFT_CLK, SCB_EEPROM);
+ udelay(1);
+ retval = (retval << 1) |
+ !!(INW(priv, SCB_EEPROM) & EE_DATA_READ);
+ OUTW(priv, EE_ENB, SCB_EEPROM);
+ udelay(1);
+ }
+
+ /* Terminate the EEPROM access. */
+ OUTW(priv, EE_ENB & ~EE_CS, SCB_EEPROM);
+ return retval;
+}
+
+#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
+static int eepro100_initialize_mii(struct eepro100_priv *priv)
+{
+ /* register mii command access routines */
+ struct mii_dev *mdiodev;
+ int ret;
+
+ mdiodev = mdio_alloc();
+ if (!mdiodev)
+ return -ENOMEM;
+
+ strncpy(mdiodev->name, priv->name, MDIO_NAME_LEN);
+ mdiodev->read = eepro100_miiphy_read;
+ mdiodev->write = eepro100_miiphy_write;
+ mdiodev->priv = priv;
+
+ ret = mdio_register(mdiodev);
+ if (ret < 0) {
+ mdio_free(mdiodev);
+ return ret;
+ }
+
+ return 0;
+}
+#else
+static int eepro100_initialize_mii(struct eepro100_priv *priv)
+{
+ return 0;
+}
+#endif
+
+static struct pci_device_id supported[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82557) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82559) },
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82559ER) },
+ { }
+};
+
+static void eepro100_get_hwaddr(struct eepro100_priv *priv)
+{
+ u16 sum = 0;
+ int i, j;
+ int addr_len = read_eeprom(priv, 0, 6) == 0xffff ? 8 : 6;
+
+ for (j = 0, i = 0; i < 0x40; i++) {
+ u16 value = read_eeprom(priv, i, addr_len);
+
+ sum += value;
+ if (i < 3) {
+ priv->enetaddr[j++] = value;
+ priv->enetaddr[j++] = value >> 8;
+ }
+ }
+
+ if (sum != 0xBABA) {
+ memset(priv->enetaddr, 0, ETH_ALEN);
+ debug("%s: Invalid EEPROM checksum %#4.4x, check settings before activating this device!\n",
+ priv->name, sum);
+ }
+}
+
+static int eepro100_init_common(struct eepro100_priv *priv)
{
+ struct eepro100_rxfd *rx_ring = priv->rx_ring;
+ struct eepro100_txfd *tx_ring = priv->tx_ring;
struct eepro100_txfd *ias_cmd, *cfg_cmd;
int ret, status = -1;
int tx_cur;
/* Reset the ethernet controller */
- OUTL(dev, I82559_SELECTIVE_RESET, SCB_PORT);
+ OUTL(priv, I82559_SELECTIVE_RESET, SCB_PORT);
udelay(20);
- OUTL(dev, I82559_RESET, SCB_PORT);
+ OUTL(priv, I82559_RESET, SCB_PORT);
udelay(20);
- if (!wait_for_eepro100(dev)) {
+ if (!wait_for_eepro100(priv)) {
printf("Error: Can not reset ethernet controller.\n");
goto done;
}
- OUTL(dev, 0, SCB_POINTER);
- OUTW(dev, SCB_M | RUC_ADDR_LOAD, SCB_CMD);
+ OUTL(priv, 0, SCB_POINTER);
+ OUTW(priv, SCB_M | RUC_ADDR_LOAD, SCB_CMD);
- if (!wait_for_eepro100(dev)) {
+ if (!wait_for_eepro100(priv)) {
printf("Error: Can not reset ethernet controller.\n");
goto done;
}
- OUTL(dev, 0, SCB_POINTER);
- OUTW(dev, SCB_M | CU_ADDR_LOAD, SCB_CMD);
+ OUTL(priv, 0, SCB_POINTER);
+ OUTW(priv, SCB_M | CU_ADDR_LOAD, SCB_CMD);
/* Initialize Rx and Tx rings. */
- init_rx_ring(dev);
- purge_tx_ring(dev);
+ init_rx_ring(priv);
+ purge_tx_ring(priv);
/* Tell the adapter where the RX ring is located. */
- if (!wait_for_eepro100(dev)) {
+ if (!wait_for_eepro100(priv)) {
printf("Error: Can not reset ethernet controller.\n");
goto done;
}
- OUTL(dev, phys_to_bus((u32)&rx_ring[rx_next]), SCB_POINTER);
- OUTW(dev, SCB_M | RUC_START, SCB_CMD);
+ /* RX ring cache was already flushed in init_rx_ring() */
+ OUTL(priv, phys_to_bus(priv->devno, (u32)&rx_ring[priv->rx_next]),
+ SCB_POINTER);
+ OUTW(priv, SCB_M | RUC_START, SCB_CMD);
/* Send the Configure frame */
- tx_cur = tx_next;
- tx_next = ((tx_next + 1) % NUM_TX_DESC);
+ tx_cur = priv->tx_next;
+ priv->tx_next = ((priv->tx_next + 1) % NUM_TX_DESC);
cfg_cmd = &tx_ring[tx_cur];
cfg_cmd->command = cpu_to_le16(CONFIG_SYS_CMD_SUSPEND |
CONFIG_SYS_CMD_CONFIGURE);
cfg_cmd->status = 0;
- cfg_cmd->link = cpu_to_le32(phys_to_bus((u32)&tx_ring[tx_next]));
+ cfg_cmd->link = cpu_to_le32(phys_to_bus(priv->devno,
+ (u32)&tx_ring[priv->tx_next]));
memcpy(((struct descriptor *)cfg_cmd)->params, i82558_config_cmd,
sizeof(i82558_config_cmd));
- ret = eepro100_txcmd_send(dev, cfg_cmd);
+ ret = eepro100_txcmd_send(priv, cfg_cmd);
if (ret) {
if (ret == -ETIMEDOUT)
printf("Error---CONFIG_SYS_CMD_CONFIGURE: Can not reset ethernet controller.\n");
}
/* Send the Individual Address Setup frame */
- tx_cur = tx_next;
- tx_next = ((tx_next + 1) % NUM_TX_DESC);
+ tx_cur = priv->tx_next;
+ priv->tx_next = ((priv->tx_next + 1) % NUM_TX_DESC);
ias_cmd = &tx_ring[tx_cur];
ias_cmd->command = cpu_to_le16(CONFIG_SYS_CMD_SUSPEND |
CONFIG_SYS_CMD_IAS);
ias_cmd->status = 0;
- ias_cmd->link = cpu_to_le32(phys_to_bus((u32)&tx_ring[tx_next]));
+ ias_cmd->link = cpu_to_le32(phys_to_bus(priv->devno,
+ (u32)&tx_ring[priv->tx_next]));
- memcpy(((struct descriptor *)ias_cmd)->params, dev->enetaddr, 6);
+ memcpy(((struct descriptor *)ias_cmd)->params, priv->enetaddr, 6);
- ret = eepro100_txcmd_send(dev, ias_cmd);
+ ret = eepro100_txcmd_send(priv, ias_cmd);
if (ret) {
if (ret == -ETIMEDOUT)
printf("Error: Can not reset ethernet controller.\n");
return status;
}
-static int eepro100_send(struct eth_device *dev, void *packet, int length)
+static int eepro100_send_common(struct eepro100_priv *priv,
+ void *packet, int length)
{
+ struct eepro100_txfd *tx_ring = priv->tx_ring;
+ struct eepro100_txfd *desc;
int ret, status = -1;
int tx_cur;
if (length <= 0) {
- printf("%s: bad packet size: %d\n", dev->name, length);
+ printf("%s: bad packet size: %d\n", priv->name, length);
goto done;
}
- tx_cur = tx_next;
- tx_next = (tx_next + 1) % NUM_TX_DESC;
-
- tx_ring[tx_cur].command = cpu_to_le16(TXCB_CMD_TRANSMIT | TXCB_CMD_SF |
- TXCB_CMD_S | TXCB_CMD_EL);
- tx_ring[tx_cur].status = 0;
- tx_ring[tx_cur].count = cpu_to_le32 (tx_threshold);
- tx_ring[tx_cur].link =
- cpu_to_le32 (phys_to_bus((u32)&tx_ring[tx_next]));
- tx_ring[tx_cur].tx_desc_addr =
- cpu_to_le32 (phys_to_bus((u32)&tx_ring[tx_cur].tx_buf_addr0));
- tx_ring[tx_cur].tx_buf_addr0 =
- cpu_to_le32 (phys_to_bus((u_long)packet));
- tx_ring[tx_cur].tx_buf_size0 = cpu_to_le32 (length);
-
- ret = eepro100_txcmd_send(dev, &tx_ring[tx_cur]);
+ tx_cur = priv->tx_next;
+ priv->tx_next = (priv->tx_next + 1) % NUM_TX_DESC;
+
+ desc = &tx_ring[tx_cur];
+ desc->command = cpu_to_le16(TXCB_CMD_TRANSMIT | TXCB_CMD_SF |
+ TXCB_CMD_S | TXCB_CMD_EL);
+ desc->status = 0;
+ desc->count = cpu_to_le32(priv->tx_threshold);
+ desc->link = cpu_to_le32(phys_to_bus(priv->devno,
+ (u32)&tx_ring[priv->tx_next]));
+ desc->tx_desc_addr = cpu_to_le32(phys_to_bus(priv->devno,
+ (u32)&desc->tx_buf_addr0));
+ desc->tx_buf_addr0 = cpu_to_le32(phys_to_bus(priv->devno,
+ (u_long)packet));
+ desc->tx_buf_size0 = cpu_to_le32(length);
+
+ ret = eepro100_txcmd_send(priv, &tx_ring[tx_cur]);
if (ret) {
if (ret == -ETIMEDOUT)
printf("%s: Tx error ethernet controller not ready.\n",
- dev->name);
+ priv->name);
goto done;
}
return status;
}
-static int eepro100_recv(struct eth_device *dev)
+static int eepro100_recv_common(struct eepro100_priv *priv, uchar **packetp)
{
- u16 status, stat;
- int rx_prev, length = 0;
-
- stat = INW(dev, SCB_STATUS);
- OUTW(dev, stat & SCB_STATUS_RNR, SCB_STATUS);
+ struct eepro100_rxfd *rx_ring = priv->rx_ring;
+ struct eepro100_rxfd *desc;
+ int length;
+ u16 status;
+
+ priv->rx_stat = INW(priv, SCB_STATUS);
+ OUTW(priv, priv->rx_stat & SCB_STATUS_RNR, SCB_STATUS);
+
+ desc = &rx_ring[priv->rx_next];
+ invalidate_dcache_range((unsigned long)desc,
+ (unsigned long)desc + sizeof(*desc));
+ status = le16_to_cpu(desc->status);
+
+ if (!(status & RFD_STATUS_C))
+ return 0;
+
+ /* Valid frame status. */
+ if (status & RFD_STATUS_OK) {
+ /* A valid frame received. */
+ length = le32_to_cpu(desc->count) & 0x3fff;
+ /* Pass the packet up to the protocol layers. */
+ *packetp = desc->data;
+ return length;
+ }
- for (;;) {
- status = le16_to_cpu(rx_ring[rx_next].status);
+ /* There was an error. */
+ printf("RX error status = 0x%08X\n", status);
+ return -EINVAL;
+}
- if (!(status & RFD_STATUS_C))
- break;
+static void eepro100_free_pkt_common(struct eepro100_priv *priv)
+{
+ struct eepro100_rxfd *rx_ring = priv->rx_ring;
+ struct eepro100_rxfd *desc;
+ int rx_prev;
- /* Valid frame status. */
- if ((status & RFD_STATUS_OK)) {
- /* A valid frame received. */
- length = le32_to_cpu(rx_ring[rx_next].count) & 0x3fff;
-
- /* Pass the packet up to the protocol layers. */
- net_process_received_packet((u8 *)rx_ring[rx_next].data,
- length);
- } else {
- /* There was an error. */
- printf("RX error status = 0x%08X\n", status);
- }
+ desc = &rx_ring[priv->rx_next];
- rx_ring[rx_next].control = cpu_to_le16 (RFD_CONTROL_S);
- rx_ring[rx_next].status = 0;
- rx_ring[rx_next].count = cpu_to_le32 (PKTSIZE_ALIGN << 16);
+ desc->control = cpu_to_le16(RFD_CONTROL_S);
+ desc->status = 0;
+ desc->count = cpu_to_le32(PKTSIZE_ALIGN << 16);
+ flush_dcache_range((unsigned long)desc,
+ (unsigned long)desc + sizeof(*desc));
- rx_prev = (rx_next + NUM_RX_DESC - 1) % NUM_RX_DESC;
- rx_ring[rx_prev].control = 0;
+ rx_prev = (priv->rx_next + NUM_RX_DESC - 1) % NUM_RX_DESC;
+ desc = &rx_ring[rx_prev];
+ desc->control = 0;
+ flush_dcache_range((unsigned long)desc,
+ (unsigned long)desc + sizeof(*desc));
- /* Update entry information. */
- rx_next = (rx_next + 1) % NUM_RX_DESC;
- }
+ /* Update entry information. */
+ priv->rx_next = (priv->rx_next + 1) % NUM_RX_DESC;
- if (stat & SCB_STATUS_RNR) {
- printf("%s: Receiver is not ready, restart it !\n", dev->name);
+ if (!(priv->rx_stat & SCB_STATUS_RNR))
+ return;
- /* Reinitialize Rx ring. */
- init_rx_ring(dev);
+ printf("%s: Receiver is not ready, restart it !\n", priv->name);
- if (!wait_for_eepro100(dev)) {
- printf("Error: Can not restart ethernet controller.\n");
- goto done;
- }
+ /* Reinitialize Rx ring. */
+ init_rx_ring(priv);
- OUTL(dev, phys_to_bus((u32)&rx_ring[rx_next]), SCB_POINTER);
- OUTW(dev, SCB_M | RUC_START, SCB_CMD);
+ if (!wait_for_eepro100(priv)) {
+ printf("Error: Can not restart ethernet controller.\n");
+ return;
}
-done:
- return length;
+ /* RX ring cache was already flushed in init_rx_ring() */
+ OUTL(priv, phys_to_bus(priv->devno, (u32)&rx_ring[priv->rx_next]),
+ SCB_POINTER);
+ OUTW(priv, SCB_M | RUC_START, SCB_CMD);
}
-static void eepro100_halt(struct eth_device *dev)
+static void eepro100_halt_common(struct eepro100_priv *priv)
{
/* Reset the ethernet controller */
- OUTL(dev, I82559_SELECTIVE_RESET, SCB_PORT);
+ OUTL(priv, I82559_SELECTIVE_RESET, SCB_PORT);
udelay(20);
- OUTL(dev, I82559_RESET, SCB_PORT);
+ OUTL(priv, I82559_RESET, SCB_PORT);
udelay(20);
- if (!wait_for_eepro100(dev)) {
+ if (!wait_for_eepro100(priv)) {
printf("Error: Can not reset ethernet controller.\n");
goto done;
}
- OUTL(dev, 0, SCB_POINTER);
- OUTW(dev, SCB_M | RUC_ADDR_LOAD, SCB_CMD);
+ OUTL(priv, 0, SCB_POINTER);
+ OUTW(priv, SCB_M | RUC_ADDR_LOAD, SCB_CMD);
- if (!wait_for_eepro100(dev)) {
+ if (!wait_for_eepro100(priv)) {
printf("Error: Can not reset ethernet controller.\n");
goto done;
}
- OUTL(dev, 0, SCB_POINTER);
- OUTW(dev, SCB_M | CU_ADDR_LOAD, SCB_CMD);
+ OUTL(priv, 0, SCB_POINTER);
+ OUTW(priv, SCB_M | CU_ADDR_LOAD, SCB_CMD);
done:
return;
}
-/* SROM Read. */
-static int read_eeprom(struct eth_device *dev, int location, int addr_len)
+#ifndef CONFIG_DM_ETH
+static int eepro100_init(struct eth_device *dev, struct bd_info *bis)
{
- unsigned short retval = 0;
- int read_cmd = location | EE_READ_CMD;
- int i;
+ struct eepro100_priv *priv =
+ container_of(dev, struct eepro100_priv, dev);
- OUTW(dev, EE_ENB & ~EE_CS, SCB_EEPROM);
- OUTW(dev, EE_ENB, SCB_EEPROM);
+ return eepro100_init_common(priv);
+}
- /* Shift the read command bits out. */
- for (i = 12; i >= 0; i--) {
- short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0;
+static void eepro100_halt(struct eth_device *dev)
+{
+ struct eepro100_priv *priv =
+ container_of(dev, struct eepro100_priv, dev);
- OUTW(dev, EE_ENB | dataval, SCB_EEPROM);
- udelay(1);
- OUTW(dev, EE_ENB | dataval | EE_SHIFT_CLK, SCB_EEPROM);
- udelay(1);
- }
- OUTW(dev, EE_ENB, SCB_EEPROM);
+ eepro100_halt_common(priv);
+}
- for (i = 15; i >= 0; i--) {
- OUTW(dev, EE_ENB | EE_SHIFT_CLK, SCB_EEPROM);
- udelay(1);
- retval = (retval << 1) |
- ((INW(dev, SCB_EEPROM) & EE_DATA_READ) ? 1 : 0);
- OUTW(dev, EE_ENB, SCB_EEPROM);
- udelay(1);
- }
+static int eepro100_send(struct eth_device *dev, void *packet, int length)
+{
+ struct eepro100_priv *priv =
+ container_of(dev, struct eepro100_priv, dev);
- /* Terminate the EEPROM access. */
- OUTW(dev, EE_ENB & ~EE_CS, SCB_EEPROM);
- return retval;
+ return eepro100_send_common(priv, packet, length);
}
-static void init_rx_ring(struct eth_device *dev)
+static int eepro100_recv(struct eth_device *dev)
{
- int i;
+ struct eepro100_priv *priv =
+ container_of(dev, struct eepro100_priv, dev);
+ uchar *packet;
+ int ret;
+
+ ret = eepro100_recv_common(priv, &packet);
+ if (ret > 0)
+ net_process_received_packet(packet, ret);
+ if (ret)
+ eepro100_free_pkt_common(priv);
+
+ return ret;
+}
- for (i = 0; i < NUM_RX_DESC; i++) {
- rx_ring[i].status = 0;
- rx_ring[i].control = (i == NUM_RX_DESC - 1) ?
- cpu_to_le16 (RFD_CONTROL_S) : 0;
- rx_ring[i].link =
- cpu_to_le32(phys_to_bus((u32)&rx_ring[(i + 1) %
- NUM_RX_DESC]));
- rx_ring[i].rx_buf_addr = 0xffffffff;
- rx_ring[i].count = cpu_to_le32(PKTSIZE_ALIGN << 16);
+int eepro100_initialize(struct bd_info *bis)
+{
+ struct eepro100_priv *priv;
+ struct eth_device *dev;
+ int card_number = 0;
+ u32 iobase, status;
+ pci_dev_t devno;
+ int idx = 0;
+ int ret;
+
+ while (1) {
+ /* Find PCI device */
+ devno = pci_find_devices(supported, idx++);
+ if (devno < 0)
+ break;
+
+ pci_read_config_dword(devno, PCI_BASE_ADDRESS_0, &iobase);
+ iobase &= ~0xf;
+
+ debug("eepro100: Intel i82559 PCI EtherExpressPro @0x%x\n",
+ iobase);
+
+ pci_write_config_dword(devno, PCI_COMMAND,
+ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
+
+ /* Check if I/O accesses and Bus Mastering are enabled. */
+ pci_read_config_dword(devno, PCI_COMMAND, &status);
+ if (!(status & PCI_COMMAND_MEMORY)) {
+ printf("Error: Can not enable MEM access.\n");
+ continue;
+ }
+
+ if (!(status & PCI_COMMAND_MASTER)) {
+ printf("Error: Can not enable Bus Mastering.\n");
+ continue;
+ }
+
+ priv = calloc(1, sizeof(*priv));
+ if (!priv) {
+ printf("eepro100: Can not allocate memory\n");
+ break;
+ }
+ dev = &priv->dev;
+
+ sprintf(dev->name, "i82559#%d", card_number);
+ priv->name = dev->name;
+ /* this have to come before bus_to_phys() */
+ priv->devno = devno;
+ priv->iobase = (void __iomem *)bus_to_phys(devno, iobase);
+ priv->enetaddr = dev->enetaddr;
+
+ dev->init = eepro100_init;
+ dev->halt = eepro100_halt;
+ dev->send = eepro100_send;
+ dev->recv = eepro100_recv;
+
+ eth_register(dev);
+
+ ret = eepro100_initialize_mii(priv);
+ if (ret) {
+ eth_unregister(dev);
+ free(priv);
+ return ret;
+ }
+
+ card_number++;
+
+ /* Set the latency timer for value. */
+ pci_write_config_byte(devno, PCI_LATENCY_TIMER, 0x20);
+
+ udelay(10 * 1000);
+
+ eepro100_get_hwaddr(priv);
}
- rx_next = 0;
+ return card_number;
}
-static void purge_tx_ring(struct eth_device *dev)
+#else /* DM_ETH */
+static int eepro100_start(struct udevice *dev)
{
- tx_next = 0;
- tx_threshold = 0x01208000;
- memset(tx_ring, 0, sizeof(*tx_ring) * NUM_TX_DESC);
+ struct eth_pdata *plat = dev_get_platdata(dev);
+ struct eepro100_priv *priv = dev_get_priv(dev);
+
+ memcpy(priv->enetaddr, plat->enetaddr, sizeof(plat->enetaddr));
+
+ return eepro100_init_common(priv);
}
-static void read_hw_addr(struct eth_device *dev, bd_t *bis)
+static void eepro100_stop(struct udevice *dev)
{
- u16 sum = 0;
- int i, j;
- int addr_len = read_eeprom(dev, 0, 6) == 0xffff ? 8 : 6;
+ struct eepro100_priv *priv = dev_get_priv(dev);
- for (j = 0, i = 0; i < 0x40; i++) {
- u16 value = read_eeprom(dev, i, addr_len);
+ eepro100_halt_common(priv);
+}
- sum += value;
- if (i < 3) {
- dev->enetaddr[j++] = value;
- dev->enetaddr[j++] = value >> 8;
- }
- }
+static int eepro100_send(struct udevice *dev, void *packet, int length)
+{
+ struct eepro100_priv *priv = dev_get_priv(dev);
+ int ret;
- if (sum != 0xBABA) {
- memset(dev->enetaddr, 0, ETH_ALEN);
- debug("%s: Invalid EEPROM checksum %#4.4x, check settings before activating this device!\n",
- dev->name, sum);
+ ret = eepro100_send_common(priv, packet, length);
+
+ return ret ? 0 : -ETIMEDOUT;
+}
+
+static int eepro100_recv(struct udevice *dev, int flags, uchar **packetp)
+{
+ struct eepro100_priv *priv = dev_get_priv(dev);
+
+ return eepro100_recv_common(priv, packetp);
+}
+
+static int eepro100_free_pkt(struct udevice *dev, uchar *packet, int length)
+{
+ struct eepro100_priv *priv = dev_get_priv(dev);
+
+ eepro100_free_pkt_common(priv);
+
+ return 0;
+}
+
+static int eepro100_read_rom_hwaddr(struct udevice *dev)
+{
+ struct eepro100_priv *priv = dev_get_priv(dev);
+
+ eepro100_get_hwaddr(priv);
+
+ return 0;
+}
+
+static int eepro100_bind(struct udevice *dev)
+{
+ static int card_number;
+ char name[16];
+
+ sprintf(name, "eepro100#%u", card_number++);
+
+ return device_set_name(dev, name);
+}
+
+static int eepro100_probe(struct udevice *dev)
+{
+ struct eth_pdata *plat = dev_get_platdata(dev);
+ struct eepro100_priv *priv = dev_get_priv(dev);
+ u16 command, status;
+ u32 iobase;
+ int ret;
+
+ dm_pci_read_config32(dev, PCI_BASE_ADDRESS_0, &iobase);
+ iobase &= ~0xf;
+
+ debug("eepro100: Intel i82559 PCI EtherExpressPro @0x%x\n", iobase);
+
+ priv->devno = dev;
+ priv->enetaddr = plat->enetaddr;
+ priv->iobase = (void __iomem *)bus_to_phys(dev, iobase);
+
+ command = PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
+ dm_pci_write_config16(dev, PCI_COMMAND, command);
+ dm_pci_read_config16(dev, PCI_COMMAND, &status);
+ if ((status & command) != command) {
+ printf("eepro100: Couldn't enable IO access or Bus Mastering\n");
+ return -EINVAL;
}
+
+ ret = eepro100_initialize_mii(priv);
+ if (ret)
+ return ret;
+
+ dm_pci_write_config8(dev, PCI_LATENCY_TIMER, 0x20);
+
+ return 0;
}
+
+static const struct eth_ops eepro100_ops = {
+ .start = eepro100_start,
+ .send = eepro100_send,
+ .recv = eepro100_recv,
+ .stop = eepro100_stop,
+ .free_pkt = eepro100_free_pkt,
+ .read_rom_hwaddr = eepro100_read_rom_hwaddr,
+};
+
+U_BOOT_DRIVER(eth_eepro100) = {
+ .name = "eth_eepro100",
+ .id = UCLASS_ETH,
+ .bind = eepro100_bind,
+ .probe = eepro100_probe,
+ .ops = &eepro100_ops,
+ .priv_auto_alloc_size = sizeof(struct eepro100_priv),
+ .platdata_auto_alloc_size = sizeof(struct eth_pdata),
+};
+
+U_BOOT_PCI_DEVICE(eth_eepro100, supported);
+#endif
projects / J-u-boot.git / blobdiff