[PATCH v3 net-next 2/2] ravb: Support 1Gbps on R-Car H3 ES1.1+ and R-Car M3-W

[Simon Horman]

From: Geert Uytterhoeven <geert+rene...@glider.be>

The limitation to 10/100Mbit speeds on R-Car Gen3 is valid for R-Car H3
ES1.0 only. Check for the exact SoC model to allow 1Gbps on newer
revisions of R-Car H3, and on R-Car M3-W.

Signed-off-by: Geert Uytterhoeven <geert+rene...@glider.be>
Signed-off-by: Simon Horman <horms+rene...@verge.net.au>
Acked-by: Sergei Shtylyov <sergei.shtyl...@cogentembedded.com>
---
 drivers/net/ethernet/renesas/ravb_main.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/renesas/ravb_main.c 
b/drivers/net/ethernet/renesas/ravb_main.c
index 732cdea7800b..615a3cb6f18c 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -31,6 +31,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
+#include <linux/sys_soc.h>
 
 #include <asm/div64.h>
 
@@ -973,6 +974,11 @@ static void ravb_adjust_link(struct net_device *ndev)
                phy_print_status(phydev);
 }
 
+static const struct soc_device_attribute r8a7795es10[] = {
+       { .soc_id = "r8a7795", .revision = "ES1.0", },
+       { /* sentinel */ }
+};
+
 /* PHY init function */
 static int ravb_phy_init(struct net_device *ndev)
 {
@@ -1008,10 +1014,10 @@ static int ravb_phy_init(struct net_device *ndev)
                goto err_deregister_fixed_link;
        }
 
-       /* This driver only support 10/100Mbit speeds on Gen3
+       /* This driver only support 10/100Mbit speeds on R-Car H3 ES1.0
         * at this time.
         */
-       if (priv->chip_id == RCAR_GEN3) {
+       if (soc_device_match(r8a7795es10)) {
                err = phy_set_max_speed(phydev, SPEED_100);
                if (err) {
                        netdev_err(ndev, "failed to limit PHY to 100Mbit/s\n");
-- 
2.7.0.rc3.207.g0ac5344