net: stmmac: Implement logic to automatically select HW Interface

Move all the core version detection to a common place ("hwif.c") and
implement a table which can be used to lookup the correct callbacks for
each IP version.

This simplifies the initialization flow of each IP version and eases
future implementation of new IP versions.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: Vitor Soares <soares@synopsys.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 19 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
index ef10baf14186..0877bde6e860 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
@@ -27,6 +27,7 @@
 #include <linux/ethtool.h>
 #include <net/dsa.h>
 #include <asm/io.h>
+#include "stmmac.h"
 #include "stmmac_pcs.h"
 #include "dwmac1000.h"
 
@@ -498,7 +499,7 @@ static void dwmac1000_debug(void __iomem *ioaddr, struct stmmac_extra_stats *x,
 		x->mac_gmii_rx_proto_engine++;
 }
 
-static const struct stmmac_ops dwmac1000_ops = {
+const struct stmmac_ops dwmac1000_ops = {
 	.core_init = dwmac1000_core_init,
 	.set_mac = stmmac_set_mac,
 	.rx_ipc = dwmac1000_rx_ipc_enable,
@@ -519,28 +520,21 @@ static const struct stmmac_ops dwmac1000_ops = {
 	.pcs_get_adv_lp = dwmac1000_get_adv_lp,
 };
 
-struct mac_device_info *dwmac1000_setup(void __iomem *ioaddr, int mcbins,
-					int perfect_uc_entries,
-					int *synopsys_id)
+int dwmac1000_setup(struct stmmac_priv *priv)
 {
-	struct mac_device_info *mac;
-	u32 hwid = readl(ioaddr + GMAC_VERSION);
+	struct mac_device_info *mac = priv->hw;
 
-	mac = kzalloc(sizeof(const struct mac_device_info), GFP_KERNEL);
-	if (!mac)
-		return NULL;
+	dev_info(priv->device, "\tDWMAC1000\n");
 
-	mac->pcsr = ioaddr;
-	mac->multicast_filter_bins = mcbins;
-	mac->unicast_filter_entries = perfect_uc_entries;
+	priv->dev->priv_flags |= IFF_UNICAST_FLT;
+	mac->pcsr = priv->ioaddr;
+	mac->multicast_filter_bins = priv->plat->multicast_filter_bins;
+	mac->unicast_filter_entries = priv->plat->unicast_filter_entries;
 	mac->mcast_bits_log2 = 0;
 
 	if (mac->multicast_filter_bins)
 		mac->mcast_bits_log2 = ilog2(mac->multicast_filter_bins);
 
-	mac->mac = &dwmac1000_ops;
-	mac->dma = &dwmac1000_dma_ops;
-
 	mac->link.duplex = GMAC_CONTROL_DM;
 	mac->link.speed10 = GMAC_CONTROL_PS;
 	mac->link.speed100 = GMAC_CONTROL_PS | GMAC_CONTROL_FES;
@@ -555,8 +549,5 @@ struct mac_device_info *dwmac1000_setup(void __iomem *ioaddr, int mcbins,
 	mac->mii.clk_csr_shift = 2;
 	mac->mii.clk_csr_mask = GENMASK(5, 2);
 
-	/* Get and dump the chip ID */
-	*synopsys_id = stmmac_get_synopsys_id(hwid);
-
-	return mac;
+	return 0;
 }