[U-Boot] [PATCH 1/6] net: dw: Add read_rom_hwaddr net_op hook

[Olliver Schinagl]

Add the read_rom_hwaddr net_op hook so that it can be called from boards
to read the mac from a ROM chip.

Signed-off-by: Olliver Schinagl <oliver at schinagl.nl>
---
 drivers/net/designware.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/net/designware.c b/drivers/net/designware.c
index 9e6d726..3f2f67c 100644
--- a/drivers/net/designware.c
+++ b/drivers/net/designware.c
@@ -230,6 +230,21 @@ static int _dw_write_hwaddr(struct dw_eth_dev *priv, u8 *mac_id)
 	return 0;
 }
 
+__weak int dw_board_read_rom_hwaddr(unsigned char *enetaddr, int id)
+{
+	return -ENOSYS;
+}
+
+static int designware_eth_read_rom_hwaddr(struct udevice *dev)
+{
+	struct eth_pdata *pdata = dev_get_platdata(dev);
+
+	if (!dev)
+		return -ENOSYS;
+
+	return dw_board_read_rom_hwaddr(pdata->enetaddr, dev->seq);
+}
+
 static void dw_adjust_link(struct eth_mac_regs *mac_p,
 			   struct phy_device *phydev)
 {
@@ -685,6 +700,7 @@ static const struct eth_ops designware_eth_ops = {
 	.free_pkt		= designware_eth_free_pkt,
 	.stop			= designware_eth_stop,
 	.write_hwaddr		= designware_eth_write_hwaddr,
+	.read_rom_hwaddr	= designware_eth_read_rom_hwaddr,
 };
 
 static int designware_eth_ofdata_to_platdata(struct udevice *dev)
-- 
2.10.2