sh_eth: check sh_eth_cpu_data::dual_port when dumping registers

When adding the sh_eth_cpu_data::dual_port flag I forgot to add the flag
checks to __sh_eth_get_regs(), causing the non-existing TSU registers to
be dumped by 'ethtool' on the single port Ether controllers having TSU...

Fixes: 36d7550cad6f ("sh_eth: fix TSU init on SH7734/R8A7740")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index e19b49c4013ed321e53c0bc684676697342be6b8..3591285250e19745d016d607749d6b408e8e9372 100644 (file)
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -2204,24 +2204,28 @@ static size_t __sh_eth_get_regs(struct net_device *ndev, u32 *buf)
        if (cd->tsu) {
                add_tsu_reg(ARSTR);
                add_tsu_reg(TSU_CTRST);
-               add_tsu_reg(TSU_FWEN0);
-               add_tsu_reg(TSU_FWEN1);
-               add_tsu_reg(TSU_FCM);
-               add_tsu_reg(TSU_BSYSL0);
-               add_tsu_reg(TSU_BSYSL1);
-               add_tsu_reg(TSU_PRISL0);
-               add_tsu_reg(TSU_PRISL1);
-               add_tsu_reg(TSU_FWSL0);
-               add_tsu_reg(TSU_FWSL1);
+               if (cd->dual_port) {
+                       add_tsu_reg(TSU_FWEN0);
+                       add_tsu_reg(TSU_FWEN1);
+                       add_tsu_reg(TSU_FCM);
+                       add_tsu_reg(TSU_BSYSL0);
+                       add_tsu_reg(TSU_BSYSL1);
+                       add_tsu_reg(TSU_PRISL0);
+                       add_tsu_reg(TSU_PRISL1);
+                       add_tsu_reg(TSU_FWSL0);
+                       add_tsu_reg(TSU_FWSL1);
+               }
                add_tsu_reg(TSU_FWSLC);
-               add_tsu_reg(TSU_QTAGM0);
-               add_tsu_reg(TSU_QTAGM1);
-               add_tsu_reg(TSU_FWSR);
-               add_tsu_reg(TSU_FWINMK);
-               add_tsu_reg(TSU_ADQT0);
-               add_tsu_reg(TSU_ADQT1);
-               add_tsu_reg(TSU_VTAG0);
-               add_tsu_reg(TSU_VTAG1);
+               if (cd->dual_port) {
+                       add_tsu_reg(TSU_QTAGM0);
+                       add_tsu_reg(TSU_QTAGM1);
+                       add_tsu_reg(TSU_FWSR);
+                       add_tsu_reg(TSU_FWINMK);
+                       add_tsu_reg(TSU_ADQT0);
+                       add_tsu_reg(TSU_ADQT1);
+                       add_tsu_reg(TSU_VTAG0);
+                       add_tsu_reg(TSU_VTAG1);
+               }
                add_tsu_reg(TSU_ADSBSY);
                add_tsu_reg(TSU_TEN);
                add_tsu_reg(TSU_POST1);