/*
- * (C) Copyright 2001-2010
+ * (C) Copyright 2001-2015
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ * Joe Hershberger, National Instruments
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
+#include <dm.h>
#include <net.h>
#include <miiphy.h>
#include <phy.h>
#include <asm/errno.h>
+#include <dm/device-internal.h>
+
+DECLARE_GLOBAL_DATA_PTR;
void eth_parse_enetaddr(const char *addr, uchar *enetaddr)
{
return eth_setenv_enetaddr(enetvar, enetaddr);
}
+static void eth_env_init(void)
+{
+ const char *s;
+
+ s = getenv("bootfile");
+ if (s != NULL)
+ copy_filename(BootFile, s, sizeof(BootFile));
+}
static int eth_mac_skip(int index)
{
return ((skip_state = getenv(enetvar)) != NULL);
}
+static void eth_current_changed(void);
+
+#ifdef CONFIG_DM_ETH
+/**
+ * struct eth_device_priv - private structure for each Ethernet device
+ *
+ * @state: The state of the Ethernet MAC driver (defined by enum eth_state_t)
+ */
+struct eth_device_priv {
+ enum eth_state_t state;
+};
+
+/**
+ * struct eth_uclass_priv - The structure attached to the uclass itself
+ *
+ * @current: The Ethernet device that the network functions are using
+ */
+struct eth_uclass_priv {
+ struct udevice *current;
+};
+
+static struct eth_uclass_priv *eth_get_uclass_priv(void)
+{
+ struct uclass *uc;
+
+ uclass_get(UCLASS_ETH, &uc);
+ assert(uc);
+ return uc->priv;
+}
+
+static void eth_set_current_to_next(void)
+{
+ struct eth_uclass_priv *uc_priv;
+
+ uc_priv = eth_get_uclass_priv();
+ if (uc_priv->current)
+ uclass_next_device(&uc_priv->current);
+ if (!uc_priv->current)
+ uclass_first_device(UCLASS_ETH, &uc_priv->current);
+}
+
+struct udevice *eth_get_dev(void)
+{
+ struct eth_uclass_priv *uc_priv;
+
+ uc_priv = eth_get_uclass_priv();
+ if (!uc_priv->current)
+ uclass_first_device(UCLASS_ETH,
+ &uc_priv->current);
+ return uc_priv->current;
+}
+
+static void eth_set_dev(struct udevice *dev)
+{
+ device_probe(dev);
+ eth_get_uclass_priv()->current = dev;
+}
+
+unsigned char *eth_get_ethaddr(void)
+{
+ struct eth_pdata *pdata;
+
+ if (eth_get_dev()) {
+ pdata = eth_get_dev()->platdata;
+ return pdata->enetaddr;
+ }
+
+ return NULL;
+}
+
+/* Set active state without calling start on the driver */
+int eth_init_state_only(void)
+{
+ struct udevice *current;
+ struct eth_device_priv *priv;
+
+ current = eth_get_dev();
+ if (!current || !device_active(current))
+ return -EINVAL;
+
+ priv = current->uclass_priv;
+ priv->state = ETH_STATE_ACTIVE;
+
+ return 0;
+}
+
+/* Set passive state without calling stop on the driver */
+void eth_halt_state_only(void)
+{
+ struct udevice *current;
+ struct eth_device_priv *priv;
+
+ current = eth_get_dev();
+ if (!current || !device_active(current))
+ return;
+
+ priv = current->uclass_priv;
+ priv->state = ETH_STATE_PASSIVE;
+}
+
+int eth_get_dev_index(void)
+{
+ if (eth_get_dev())
+ return eth_get_dev()->seq;
+ return -1;
+}
+
+int eth_init(void)
+{
+ struct udevice *current;
+ struct udevice *old_current;
+
+ current = eth_get_dev();
+ if (!current) {
+ printf("No ethernet found.\n");
+ return -ENODEV;
+ }
+
+ old_current = current;
+ do {
+ debug("Trying %s\n", current->name);
+
+ if (device_active(current)) {
+ uchar env_enetaddr[6];
+ struct eth_pdata *pdata = current->platdata;
+
+ /* Sync environment with network device */
+ if (eth_getenv_enetaddr_by_index("eth", current->seq,
+ env_enetaddr))
+ memcpy(pdata->enetaddr, env_enetaddr, 6);
+ else
+ memset(pdata->enetaddr, 0, 6);
+
+ if (eth_get_ops(current)->start(current) >= 0) {
+ struct eth_device_priv *priv =
+ current->uclass_priv;
+
+ priv->state = ETH_STATE_ACTIVE;
+ return 0;
+ }
+ }
+ debug("FAIL\n");
+
+ /* This will ensure the new "current" attempted to probe */
+ eth_try_another(0);
+ current = eth_get_dev();
+ } while (old_current != current);
+
+ return -ENODEV;
+}
+
+void eth_halt(void)
+{
+ struct udevice *current;
+ struct eth_device_priv *priv;
+
+ current = eth_get_dev();
+ if (!current || !device_active(current))
+ return;
+
+ eth_get_ops(current)->stop(current);
+ priv = current->uclass_priv;
+ priv->state = ETH_STATE_PASSIVE;
+}
+
+int eth_send(void *packet, int length)
+{
+ struct udevice *current;
+
+ current = eth_get_dev();
+ if (!current)
+ return -ENODEV;
+
+ if (!device_active(current))
+ return -EINVAL;
+
+ return eth_get_ops(current)->send(current, packet, length);
+}
+
+int eth_rx(void)
+{
+ struct udevice *current;
+
+ current = eth_get_dev();
+ if (!current)
+ return -ENODEV;
+
+ if (!device_active(current))
+ return -EINVAL;
+
+ return eth_get_ops(current)->recv(current);
+}
+
+static int eth_write_hwaddr(struct udevice *dev)
+{
+ struct eth_pdata *pdata = dev->platdata;
+ int ret = 0;
+
+ if (!dev || !device_active(dev))
+ return -EINVAL;
+
+ /* seq is valid since the device is active */
+ if (eth_get_ops(dev)->write_hwaddr && !eth_mac_skip(dev->seq)) {
+ if (!is_valid_ether_addr(pdata->enetaddr)) {
+ printf("\nError: %s address %pM illegal value\n",
+ dev->name, pdata->enetaddr);
+ return -EINVAL;
+ }
+
+ ret = eth_get_ops(dev)->write_hwaddr(dev);
+ if (ret)
+ printf("\nWarning: %s failed to set MAC address\n",
+ dev->name);
+ }
+
+ return ret;
+}
+
+int eth_initialize(void)
+{
+ int num_devices = 0;
+ struct udevice *dev;
+
+ bootstage_mark(BOOTSTAGE_ID_NET_ETH_START);
+ eth_env_init();
+
+ /*
+ * Devices need to write the hwaddr even if not started so that Linux
+ * will have access to the hwaddr that u-boot stored for the device.
+ * This is accomplished by attempting to probe each device and calling
+ * their write_hwaddr() operation.
+ */
+ uclass_first_device(UCLASS_ETH, &dev);
+ if (!dev) {
+ printf("No ethernet found.\n");
+ bootstage_error(BOOTSTAGE_ID_NET_ETH_START);
+ } else {
+ bootstage_mark(BOOTSTAGE_ID_NET_ETH_INIT);
+ do {
+ if (num_devices)
+ printf(", ");
+
+ printf("eth%d: %s", dev->seq, dev->name);
+
+ eth_write_hwaddr(dev);
+
+ uclass_next_device(&dev);
+ num_devices++;
+ } while (dev);
+
+ putc('\n');
+ }
+
+ return num_devices;
+}
+
+static int eth_post_bind(struct udevice *dev)
+{
+ if (strchr(dev->name, ' ')) {
+ printf("\nError: eth device name \"%s\" has a space!\n",
+ dev->name);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int eth_pre_unbind(struct udevice *dev)
+{
+ /* Don't hang onto a pointer that is going away */
+ if (dev == eth_get_uclass_priv()->current)
+ eth_set_dev(NULL);
+
+ return 0;
+}
+
+static int eth_post_probe(struct udevice *dev)
+{
+ struct eth_device_priv *priv = dev->uclass_priv;
+ struct eth_pdata *pdata = dev->platdata;
+ unsigned char env_enetaddr[6];
+
+ priv->state = ETH_STATE_INIT;
+
+ /* Check if the device has a MAC address in ROM */
+ if (eth_get_ops(dev)->read_rom_hwaddr)
+ eth_get_ops(dev)->read_rom_hwaddr(dev);
+
+ eth_getenv_enetaddr_by_index("eth", dev->seq, env_enetaddr);
+ if (!is_zero_ether_addr(env_enetaddr)) {
+ if (!is_zero_ether_addr(pdata->enetaddr) &&
+ memcmp(pdata->enetaddr, env_enetaddr, 6)) {
+ printf("\nWarning: %s MAC addresses don't match:\n",
+ dev->name);
+ printf("Address in SROM is %pM\n",
+ pdata->enetaddr);
+ printf("Address in environment is %pM\n",
+ env_enetaddr);
+ }
+
+ /* Override the ROM MAC address */
+ memcpy(pdata->enetaddr, env_enetaddr, 6);
+ } else if (is_valid_ether_addr(pdata->enetaddr)) {
+ eth_setenv_enetaddr_by_index("eth", dev->seq, pdata->enetaddr);
+ printf("\nWarning: %s using MAC address from ROM\n",
+ dev->name);
+ } else if (is_zero_ether_addr(pdata->enetaddr)) {
+ printf("\nError: %s address not set.\n",
+ dev->name);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int eth_pre_remove(struct udevice *dev)
+{
+ eth_get_ops(dev)->stop(dev);
+
+ return 0;
+}
+
+UCLASS_DRIVER(eth) = {
+ .name = "eth",
+ .id = UCLASS_ETH,
+ .post_bind = eth_post_bind,
+ .pre_unbind = eth_pre_unbind,
+ .post_probe = eth_post_probe,
+ .pre_remove = eth_pre_remove,
+ .priv_auto_alloc_size = sizeof(struct eth_uclass_priv),
+ .per_device_auto_alloc_size = sizeof(struct eth_device_priv),
+};
+#endif
+
+#ifndef CONFIG_DM_ETH
/*
* CPU and board-specific Ethernet initializations. Aliased function
* signals caller to move on
static struct eth_device *eth_devices;
struct eth_device *eth_current;
+static void eth_set_current_to_next(void)
+{
+ eth_current = eth_current->next;
+}
+
struct eth_device *eth_get_dev_by_name(const char *devname)
{
struct eth_device *dev, *target_dev;
return eth_current->index;
}
-static void eth_current_changed(void)
-{
- char *act = getenv("ethact");
- /* update current ethernet name */
- if (eth_current) {
- if (act == NULL || strcmp(act, eth_current->name) != 0)
- setenv("ethact", eth_current->name);
- }
- /*
- * remove the variable completely if there is no active
- * interface
- */
- else if (act != NULL)
- setenv("ethact", NULL);
-}
-
int eth_write_hwaddr(struct eth_device *dev, const char *base_name,
int eth_number)
{
/* No device */
if (!eth_devices)
- return -1;
+ return -ENODEV;
for (cur = eth_devices; cur->next != eth_devices && cur->next != dev;
cur = cur->next)
/* Device not found */
if (cur->next != dev)
- return -1;
+ return -ENODEV;
cur->next = dev->next;
return 0;
}
-static void eth_env_init(bd_t *bis)
-{
- const char *s;
-
- if ((s = getenv("bootfile")) != NULL)
- copy_filename(BootFile, s, sizeof(BootFile));
-}
-
-int eth_initialize(bd_t *bis)
+int eth_initialize(void)
{
int num_devices = 0;
eth_devices = NULL;
phy_init();
#endif
- eth_env_init(bis);
+ eth_env_init();
/*
* If board-specific initialization exists, call it.
* If not, call a CPU-specific one
*/
if (board_eth_init != __def_eth_init) {
- if (board_eth_init(bis) < 0)
+ if (board_eth_init(gd->bd) < 0)
printf("Board Net Initialization Failed\n");
} else if (cpu_eth_init != __def_eth_init) {
- if (cpu_eth_init(bis) < 0)
+ if (cpu_eth_init(gd->bd) < 0)
printf("CPU Net Initialization Failed\n");
} else
printf("Net Initialization Skipped\n");
* mcast_addr: multicast ipaddr from which multicast Mac is made
* join: 1=join, 0=leave.
*/
-int eth_mcast_join(IPaddr_t mcast_ip, u8 join)
+int eth_mcast_join(IPaddr_t mcast_ip, int join)
{
u8 mcast_mac[6];
if (!eth_current || !eth_current->mcast)
#endif
-int eth_init(bd_t *bis)
+int eth_init(void)
{
struct eth_device *old_current, *dev;
if (!eth_current) {
puts("No ethernet found.\n");
- return -1;
+ return -ENODEV;
}
/* Sync environment with network devices */
do {
debug("Trying %s\n", eth_current->name);
- if (eth_current->init(eth_current, bis) >= 0) {
+ if (eth_current->init(eth_current, gd->bd) >= 0) {
eth_current->state = ETH_STATE_ACTIVE;
return 0;
eth_try_another(0);
} while (old_current != eth_current);
- return -1;
+ return -ETIMEDOUT;
}
void eth_halt(void)
int eth_send(void *packet, int length)
{
if (!eth_current)
- return -1;
+ return -ENODEV;
return eth_current->send(eth_current, packet, length);
}
int eth_rx(void)
{
if (!eth_current)
- return -1;
+ return -ENODEV;
return eth_current->recv(eth_current);
}
+#endif /* ifndef CONFIG_DM_ETH */
#ifdef CONFIG_API
static void eth_save_packet(void *packet, int length)
}
#endif /* CONFIG_API */
+static void eth_current_changed(void)
+{
+ char *act = getenv("ethact");
+ /* update current ethernet name */
+ if (eth_get_dev()) {
+ if (act == NULL || strcmp(act, eth_get_name()) != 0)
+ setenv("ethact", eth_get_name());
+ }
+ /*
+ * remove the variable completely if there is no active
+ * interface
+ */
+ else if (act != NULL)
+ setenv("ethact", NULL);
+}
+
void eth_try_another(int first_restart)
{
- static struct eth_device *first_failed;
+ static void *first_failed;
char *ethrotate;
/*
if ((ethrotate != NULL) && (strcmp(ethrotate, "no") == 0))
return;
- if (!eth_current)
+ if (!eth_get_dev())
return;
if (first_restart)
- first_failed = eth_current;
+ first_failed = eth_get_dev();
- eth_current = eth_current->next;
+ eth_set_current_to_next();
eth_current_changed();
- if (first_failed == eth_current)
+ if (first_failed == eth_get_dev())
NetRestartWrap = 1;
}
{
static char *act;
static int env_changed_id;
- struct eth_device *old_current;
+ void *old_current;
int env_id;
- if (!eth_current) /* XXX no current */
- return;
-
env_id = get_env_id();
if ((act == NULL) || (env_changed_id != env_id)) {
act = getenv("ethact");
env_changed_id = env_id;
}
if (act != NULL) {
- old_current = eth_current;
+ old_current = eth_get_dev();
do {
- if (strcmp(eth_current->name, act) == 0)
+ if (strcmp(eth_get_name(), act) == 0)
return;
- eth_current = eth_current->next;
- } while (old_current != eth_current);
+ eth_set_current_to_next();
+ } while (old_current != eth_get_dev());
}
eth_current_changed();
}
-char *eth_get_name(void)
+const char *eth_get_name(void)
{
- return eth_current ? eth_current->name : "unknown";
+ return eth_get_dev() ? eth_get_dev()->name : "unknown";
}
projects / karo-tx-uboot.git / blobdiff