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SAMV7: Add a sneak internal interface that will allow us to set the MAC address before NSH even starts

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This commit is contained in:
Gregory Nutt 2015-03-18 17:23:40 -06:00
parent 7e95bfe8d0
commit fb3fe58b58
2 changed files with 106 additions and 2 deletions
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72
arch/arm/src/samv7/sam_emac.c
View File

@ -4909,7 +4909,8 @@ static int sam_emac_configure(struct sam_emac_s *priv)
* Initialize the EMAC driver.
*
* Input Parameters:
* None
* intf - If multiple EMAC peripherals are supported, this identifies the
* the EMAC peripheral being initialized.
*
* Returned Value:
* OK on success; Negated errno on failure.
@ -5052,4 +5053,73 @@ errout:
return ret;
}
/****************************************************************************
* Function: sam_emac_setmacaddr
*
* Description:
* There are two ways that the Ethernet MAC address can be set:
*
* 1) Application level code can set the Ethernet MAC address using a
* netdev ioctl. The application level code have gotten the MAC
* address from some configuration parameter or by accessing some
* non-volatile storage containing the address. This is the
* "cannonically correct" way to set the MAC address.
* 2) Alterntively, the board logic may support some other less obvious
* non-volatile storage and the board-level boot-up code may access
* this and use this interface to set the Ethernet MAC address more
* directly. This is mostly a kludge for the case where you just don't
* want to expose a application level storage interface.
*
* Input Parameters:
* intf - If multiple EMAC peripherals are supported, this identifies the
* the EMAC peripheral being initialized.
*
* Returned Value:
* OK on success; Negated errno on failure.
*
* Assumptions:
* Called very early in the initialization sequence.
*
****************************************************************************/
int sam_emac_setmacaddr(int intf, uint8_t mac[6])
{
struct sam_emac_s *priv;
struct net_driver_s *dev;
/* Get the driver state structure */
#if defined(CONFIG_SAMV7_EMAC0)
if (intf == EMAC0_INTF)
{
priv = &g_emac0;
}
else
#endif
#if defined(CONFIG_SAMV7_EMAC1)
if (intf == EMAC1_INTF)
{
priv = &g_emac1;
}
else
#endif
{
ndbg("ERROR: Interface %d not supported\n", intf);
return -EINVAL;
}
/* Copy the MAC address into the device structure */
dev = &priv->dev;
memcpy(dev->d_mac.ether_addr_octet, mac, 6);
nvdbg("%s MAC: %02x:%02x:%02x:%02x:%02x:%02x\n",
dev->d_ifname,
dev->d_mac.ether_addr_octet[0], dev->d_mac.ether_addr_octet[1],
dev->d_mac.ether_addr_octet[2], dev->d_mac.ether_addr_octet[3],
dev->d_mac.ether_addr_octet[4], dev->d_mac.ether_addr_octet[5]);
return OK;
}
#endif /* CONFIG_NET && CONFIG_SAMV7_EMAC */

36
arch/arm/src/samv7/sam_ethernet.h
View File

@ -187,7 +187,8 @@ extern "C"
* Initialize the EMAC driver.
*
* Input Parameters:
* None
* intf - If multiple EMAC peripherals are supported, this identifies the
* the EMAC peripheral being initialized.
*
* Returned Value:
* OK on success; Negated errno on failure.
@ -201,6 +202,39 @@ extern "C"
int sam_emac_initialize(int intf);
#endif
/****************************************************************************
* Function: sam_emac_setmacaddr
*
* Description:
* There are two ways that the Ethernet MAC address can be set:
*
* 1) Application level code can set the Ethernet MAC address using a
* netdev ioctl. The application level code have gotten the MAC
* address from some configuration parameter or by accessing some
* non-volatile storage containing the address. This is the
* "cannonically correct" way to set the MAC address.
* 2) Alterntively, the board logic may support some other less obvious
* non-volatile storage and the board-level boot-up code may access
* this and use this interface to set the Ethernet MAC address more
* directly. This is mostly a kludge for the case where you just don't
* want to expose a application level storage interface.
*
* Input Parameters:
* intf - If multiple EMAC peripherals are supported, this identifies the
* the EMAC peripheral being initialized.
*
* Returned Value:
* OK on success; Negated errno on failure.
*
* Assumptions:
* Called very early in the initialization sequence.
*
****************************************************************************/
#ifdef CONFIG_SAMV7_EMAC
int sam_emac_setmacaddr(int intf, uint8_t mac[6]);
#endif
/************************************************************************************
* Function: sam_phy_boardinitialize
*