[PATCH v9 18/37] net: eth-uclass: add function eth_start_udev()

[Jerome Forissier]

Add a function to start a given network device, and update eth_init()
to use it.

Signed-off-by: Jerome Forissier <jerome.foriss...@linaro.org>
Reviewed-by: Tom Rini <tr...@konsulko.com>
---
 drivers/mtd/altera_qspi.c |  4 ++--
 include/net-common.h      |  1 +
 net/eth-uclass.c          | 38 +++++++++++++++++++++++++-------------
 3 files changed, 28 insertions(+), 15 deletions(-)

diff --git a/drivers/mtd/altera_qspi.c b/drivers/mtd/altera_qspi.c
index c26615821c8..e5c8df750b7 100644
--- a/drivers/mtd/altera_qspi.c
+++ b/drivers/mtd/altera_qspi.c
@@ -96,7 +96,7 @@ int flash_erase(flash_info_t *info, int s_first, int s_last)
        ret = mtd_erase(mtd, &instr);
        flash_set_verbose(0);
        if (ret)
-               return ERR_PROTECTED;
+               return FL_ERR_PROTECTED;
 
        puts(" done\n");
        return 0;
@@ -114,7 +114,7 @@ int write_buff(flash_info_t *info, uchar *src, ulong addr, 
ulong cnt)
 
        ret = mtd_write(mtd, to, cnt, &retlen, src);
        if (ret)
-               return ERR_PROTECTED;
+               return FL_ERR_PROTECTED;
 
        return 0;
 }
diff --git a/include/net-common.h b/include/net-common.h
index 26674ec7e90..43bc6b9a0d5 100644
--- a/include/net-common.h
+++ b/include/net-common.h
@@ -192,6 +192,7 @@ int eth_env_set_enetaddr_by_index(const char *base_name, 
int index,
 int usb_ether_init(void);
 
 int eth_init(void);                    /* Initialize the device */
+int eth_start_udev(struct udevice *dev);
 int eth_send(void *packet, int length);           /* Send a packet */
 #if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER)
 int eth_receive(void *packet, int length); /* Receive a packet*/
diff --git a/net/eth-uclass.c b/net/eth-uclass.c
index e34d7af0229..6dd9b9bb98e 100644
--- a/net/eth-uclass.c
+++ b/net/eth-uclass.c
@@ -284,6 +284,27 @@ static int on_ethaddr(const char *name, const char *value, 
enum env_op op,
 }
 U_BOOT_ENV_CALLBACK(ethaddr, on_ethaddr);
 
+int eth_start_udev(struct udevice *dev)
+{
+       struct eth_device_priv *priv = dev_get_uclass_priv(dev);
+       int ret;
+
+       if (priv->running)
+               return 0;
+
+       if (!device_active(dev))
+               return -EINVAL;
+
+       ret = eth_get_ops(dev)->start(dev);
+       if (ret >= 0) {
+               priv->state = ETH_STATE_ACTIVE;
+               priv->running = true;
+               ret = 0;
+       }
+
+       return ret;
+}
+
 int eth_init(void)
 {
        struct udevice *current = NULL;
@@ -328,20 +349,11 @@ int eth_init(void)
                if (current) {
                        debug("Trying %s\n", current->name);
 
-                       if (device_active(current)) {
-                               ret = eth_get_ops(current)->start(current);
-                               if (ret >= 0) {
-                                       struct eth_device_priv *priv =
-                                               dev_get_uclass_priv(current);
-
-                                       priv->state = ETH_STATE_ACTIVE;
-                                       priv->running = true;
-                                       ret = 0;
-                                       goto end;
-                               }
-                       } else {
+                       ret = eth_start_udev(current);
+                       if (ret < 0)
                                ret = eth_errno;
-                       }
+                       else
+                               goto end;
 
                        debug("FAIL\n");
                } else {
-- 
2.40.1