diff options
| author | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> | 2020-02-15 23:13:45 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-02-16 19:44:41 -0800 |
| commit | a6318d57f68b38d2f4909d43090bf384d1812849 (patch) | |
| tree | db316d4089d573c462dcd93dcc5c956c33afaacc | |
| parent | 7bf47f609f7eaac4f7e9c407a85ad78997288a38 (diff) | |
| download | linux-a6318d57f68b38d2f4909d43090bf384d1812849.tar.bz2 | |
sh_eth: add sh_eth_cpu_data::gecmr flag
Not all Ether controllers having the Gigabit register layout have GECMR --
RZ/A1 (AKA R7S72100) actually has the same layout but no Gigabit speed
support and hence no GECMR. In the past, the new register map table was
added for this SoC, now I think we should have used the existing Gigabit
table with the differences (such as GECMR) covered by the mere flags in
the 'struct sh_eth_cpu_data'. Add such flag for GECMR -- and then we can
get rid of the R7S72100 specific layout in the next patch...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Tested-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/renesas/sh_eth.c | 14 | ||||
| -rw-r--r-- | drivers/net/ethernet/renesas/sh_eth.h | 1 |
2 files changed, 14 insertions, 1 deletions
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 44e8c2a5a7b6..7659b4d696ed 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -569,6 +569,9 @@ static void sh_eth_set_rate_gether(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); + if (WARN_ON(!mdp->cd->gecmr)) + return; + switch (mdp->speed) { case 10: /* 10BASE */ sh_eth_write(ndev, GECMR_10, GECMR); @@ -663,6 +666,7 @@ static struct sh_eth_cpu_data r8a7740_data = { .apr = 1, .mpr = 1, .tpauser = 1, + .gecmr = 1, .bculr = 1, .hw_swap = 1, .rpadir = 1, @@ -788,6 +792,7 @@ static struct sh_eth_cpu_data r8a77980_data = { .apr = 1, .mpr = 1, .tpauser = 1, + .gecmr = 1, .bculr = 1, .hw_swap = 1, .nbst = 1, @@ -957,6 +962,9 @@ static void sh_eth_set_rate_giga(struct net_device *ndev) { struct sh_eth_private *mdp = netdev_priv(ndev); + if (WARN_ON(!mdp->cd->gecmr)) + return; + switch (mdp->speed) { case 10: /* 10BASE */ sh_eth_write(ndev, 0x00000000, GECMR); @@ -1002,6 +1010,7 @@ static struct sh_eth_cpu_data sh7757_data_giga = { .apr = 1, .mpr = 1, .tpauser = 1, + .gecmr = 1, .bculr = 1, .hw_swap = 1, .rpadir = 1, @@ -1042,6 +1051,7 @@ static struct sh_eth_cpu_data sh7734_data = { .apr = 1, .mpr = 1, .tpauser = 1, + .gecmr = 1, .bculr = 1, .hw_swap = 1, .no_trimd = 1, @@ -1083,6 +1093,7 @@ static struct sh_eth_cpu_data sh7763_data = { .apr = 1, .mpr = 1, .tpauser = 1, + .gecmr = 1, .bculr = 1, .hw_swap = 1, .no_trimd = 1, @@ -2181,7 +2192,8 @@ static size_t __sh_eth_get_regs(struct net_device *ndev, u32 *buf) if (cd->tpauser) add_reg(TPAUSER); add_reg(TPAUSECR); - add_reg(GECMR); + if (cd->gecmr) + add_reg(GECMR); if (cd->bculr) add_reg(BCULR); add_reg(MAHR); diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h index 850726301e1c..621a7d46f799 100644 --- a/drivers/net/ethernet/renesas/sh_eth.h +++ b/drivers/net/ethernet/renesas/sh_eth.h @@ -490,6 +490,7 @@ struct sh_eth_cpu_data { unsigned apr:1; /* EtherC has APR */ unsigned mpr:1; /* EtherC has MPR */ unsigned tpauser:1; /* EtherC has TPAUSER */ + unsigned gecmr:1; /* EtherC has GECMR */ unsigned bculr:1; /* EtherC has BCULR */ unsigned tsu:1; /* EtherC has TSU */ unsigned hw_swap:1; /* E-DMAC has DE bit in EDMR */ |