fsl/fman: tolerate missing MAC address in device tree

Allow the initialization of the MAC to be performed even if the
device tree does not provide a valid MAC address. Later a random
MAC address should be assigned by the Ethernet driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Madalin Bucur <madalin.bucur@oss.nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fman/fman_dtsec.c b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
index f7aec50..004c266 100644 (file)
--- a/drivers/net/ethernet/freescale/fman/fman_dtsec.c
+++ b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
@@ -514,8 +514,10 @@ static int init(struct dtsec_regs __iomem *regs, struct dtsec_cfg *cfg,
 
        iowrite32be(0xffffffff, &regs->ievent);
 
-       MAKE_ENET_ADDR_FROM_UINT64(addr, eth_addr);
-       set_mac_address(regs, (u8 *)eth_addr);
+       if (addr) {
+               MAKE_ENET_ADDR_FROM_UINT64(addr, eth_addr);
+               set_mac_address(regs, (u8 *)eth_addr);
+       }
 
        /* HASH */
        for (i = 0; i < NUM_OF_HASH_REGS; i++) {
@@ -553,10 +555,6 @@ static int check_init_parameters(struct fman_mac *dtsec)
                pr_err("1G MAC driver supports 1G or lower speeds\n");
                return -EINVAL;
        }
-       if (dtsec->addr == 0) {
-               pr_err("Ethernet MAC Must have a valid MAC Address\n");
-               return -EINVAL;
-       }
        if ((dtsec->dtsec_drv_param)->rx_prepend >
            MAX_PACKET_ALIGNMENT) {
                pr_err("packetAlignmentPadding can't be > than %d\n",

diff --git a/drivers/net/ethernet/freescale/fman/fman_memac.c b/drivers/net/ethernet/freescale/fman/fman_memac.c
index e190187..f2b2bfc 100644 (file)
--- a/drivers/net/ethernet/freescale/fman/fman_memac.c
+++ b/drivers/net/ethernet/freescale/fman/fman_memac.c
@@ -596,10 +596,6 @@ static void setup_sgmii_internal_phy_base_x(struct fman_mac *memac)
 
 static int check_init_parameters(struct fman_mac *memac)
 {
-       if (memac->addr == 0) {
-               pr_err("Ethernet MAC must have a valid MAC address\n");
-               return -EINVAL;
-       }
        if (!memac->exception_cb) {
                pr_err("Uninitialized exception handler\n");
                return -EINVAL;
@@ -1057,8 +1053,10 @@ int memac_init(struct fman_mac *memac)
        }
 
        /* MAC Address */
-       MAKE_ENET_ADDR_FROM_UINT64(memac->addr, eth_addr);
-       add_addr_in_paddr(memac->regs, (u8 *)eth_addr, 0);
+       if (memac->addr != 0) {
+               MAKE_ENET_ADDR_FROM_UINT64(memac->addr, eth_addr);
+               add_addr_in_paddr(memac->regs, (u8 *)eth_addr, 0);
+       }
 
        fixed_link = memac_drv_param->fixed_link;
 

diff --git a/drivers/net/ethernet/freescale/fman/fman_tgec.c b/drivers/net/ethernet/freescale/fman/fman_tgec.c
index f75b9c1..8c7eb87 100644 (file)
--- a/drivers/net/ethernet/freescale/fman/fman_tgec.c
+++ b/drivers/net/ethernet/freescale/fman/fman_tgec.c
@@ -273,10 +273,6 @@ static int check_init_parameters(struct fman_mac *tgec)
                pr_err("10G MAC driver only support 10G speed\n");
                return -EINVAL;
        }
-       if (tgec->addr == 0) {
-               pr_err("Ethernet 10G MAC Must have valid MAC Address\n");
-               return -EINVAL;
-       }
        if (!tgec->exception_cb) {
                pr_err("uninitialized exception_cb\n");
                return -EINVAL;
@@ -706,8 +702,10 @@ int tgec_init(struct fman_mac *tgec)
 
        cfg = tgec->cfg;
 
-       MAKE_ENET_ADDR_FROM_UINT64(tgec->addr, eth_addr);
-       set_mac_address(tgec->regs, (u8 *)eth_addr);
+       if (tgec->addr) {
+               MAKE_ENET_ADDR_FROM_UINT64(tgec->addr, eth_addr);
+               set_mac_address(tgec->regs, (u8 *)eth_addr);
+       }
 
        /* interrupts */
        /* FM_10G_REM_N_LCL_FLT_EX_10GMAC_ERRATA_SW005 Errata workaround */

diff --git a/drivers/net/ethernet/freescale/fman/mac.c b/drivers/net/ethernet/freescale/fman/mac.c
index 55f2122..43427c5 100644 (file)
--- a/drivers/net/ethernet/freescale/fman/mac.c
+++ b/drivers/net/ethernet/freescale/fman/mac.c
@@ -724,12 +724,10 @@ static int mac_probe(struct platform_device *_of_dev)
 
        /* Get the MAC address */
        mac_addr = of_get_mac_address(mac_node);
-       if (IS_ERR(mac_addr)) {
-               dev_err(dev, "of_get_mac_address(%pOF) failed\n", mac_node);
-               err = -EINVAL;
-               goto _return_of_get_parent;
-       }
-       ether_addr_copy(mac_dev->addr, mac_addr);
+       if (IS_ERR(mac_addr))
+               dev_warn(dev, "of_get_mac_address(%pOF) failed\n", mac_node);
+       else
+               ether_addr_copy(mac_dev->addr, mac_addr);
 
        /* Get the port handles */
        nph = of_count_phandle_with_args(mac_node, "fsl,fman-ports", NULL);
@@ -855,7 +853,8 @@ static int mac_probe(struct platform_device *_of_dev)
        if (err < 0)
                dev_err(dev, "fman_set_mac_active_pause() = %d\n", err);
 
-       dev_info(dev, "FMan MAC address: %pM\n", mac_dev->addr);
+       if (!IS_ERR(mac_addr))
+               dev_info(dev, "FMan MAC address: %pM\n", mac_dev->addr);
 
        priv->eth_dev = dpaa_eth_add_device(fman_id, mac_dev);
        if (IS_ERR(priv->eth_dev)) {