ath79: ag71xx: Explicitly register mdio bus after ag71xx_hw_init() for ar7240

mdio bus isn't a standalone device on ar7240. (and maybe older SoCs?)
Use simple-mfd for ar7241 and later SoCs to get mdio1 ready before gmac0
For ar7240 and older chips, manually create platform device after
ag71xx_hw_init() in ag71xx_probe()to get mdio0 ready between
ag71xx_hw_init() and ag71xx_phy_connect().

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>

diff --git a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
index e741bdfa7b60f523613dd82643ee4841379df071..3a25904d56c4e50104c42540cd404e2f2736c76c 100644 (file)
--- a/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
+++ b/target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c
@@ -14,6 +14,7 @@
 #include <linux/sizes.h>
 #include <linux/of_net.h>
 #include <linux/of_address.h>
+#include <linux/of_platform.h>
 #include "ag71xx.h"
 
 #define AG71XX_DEFAULT_MSG_ENABLE      \
@@ -1273,6 +1274,7 @@ static const char *ag71xx_get_phy_if_mode_name(phy_interface_t mode)
 static int ag71xx_probe(struct platform_device *pdev)
 {
        struct device_node *np = pdev->dev.of_node;
+       struct device_node *mdio_node;
        struct net_device *dev;
        struct resource *res;
        struct ag71xx *ag;
@@ -1439,6 +1441,12 @@ static int ag71xx_probe(struct platform_device *pdev)
        ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, 0);
        ag71xx_hw_init(ag);
 
+       if(!of_device_is_compatible(np, "simple-mfd")) {
+               mdio_node = of_get_child_by_name(np, "mdio-bus");
+               if(!IS_ERR(mdio_node))
+                       of_platform_device_create(mdio_node, NULL, NULL);
+       }
+
        err = ag71xx_phy_connect(ag);
        if (err)
                goto err_free;