net: macb: add user io config data structure

Different implementation of USER IO register needs different
mapping for bit fields of this register. Add implementation
for this and, since clken is part of USER IO and it needs to
be activated based on per SoC capabilities, add caps in
macb_config where clken specific information needs to be filled.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>

diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index 2225b33..097d578 100644 (file)
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -144,11 +144,20 @@ struct macb_device {
 #endif
 };
 
+struct macb_usrio_cfg {
+       unsigned int            mii;
+       unsigned int            rmii;
+       unsigned int            rgmii;
+       unsigned int            clken;
+};
+
 struct macb_config {
        unsigned int            dma_burst_length;
        unsigned int            hw_dma_cap;
+       unsigned int            caps;
 
        int                     (*clk_init)(struct udevice *dev, ulong rate);
+       const struct macb_usrio_cfg     *usrio;
 };
 
 #ifndef CONFIG_DM_ETH
@@ -850,6 +859,7 @@ static int _macb_init(struct macb_device *macb, const char *name)
 {
 #ifdef CONFIG_DM_ETH
        struct macb_device *macb = dev_get_priv(dev);
+       unsigned int val = 0;
 #endif
        unsigned long paddr;
        int ret;
@@ -920,11 +930,17 @@ static int _macb_init(struct macb_device *macb, const char *name)
                 * to select interface between RMII and MII.
                 */
 #ifdef CONFIG_DM_ETH
-               if ((macb->phy_interface == PHY_INTERFACE_MODE_RMII) ||
-                   (macb->phy_interface == PHY_INTERFACE_MODE_RGMII))
-                       gem_writel(macb, USRIO, GEM_BIT(RGMII));
-               else
-                       gem_writel(macb, USRIO, 0);
+               if (macb->phy_interface == PHY_INTERFACE_MODE_RGMII)
+                       val = macb->config->usrio->rgmii;
+               else if (macb->phy_interface == PHY_INTERFACE_MODE_RMII)
+                       val = macb->config->usrio->rmii;
+               else if (macb->phy_interface == PHY_INTERFACE_MODE_MII)
+                       val = macb->config->usrio->mii;
+
+               if (macb->config->caps & MACB_CAPS_USRIO_HAS_CLKEN)
+                       val |= macb->config->usrio->clken;
+
+               gem_writel(macb, USRIO, val);
 
                if (macb->phy_interface == PHY_INTERFACE_MODE_SGMII) {
                        unsigned int ncfgr = macb_readl(macb, NCFGR);
@@ -934,7 +950,7 @@ static int _macb_init(struct macb_device *macb, const char *name)
                }
 #else
 #if defined(CONFIG_RGMII) || defined(CONFIG_RMII)
-               gem_writel(macb, USRIO, GEM_BIT(RGMII));
+               gem_writel(macb, USRIO, macb->config->usrio->rgmii);
 #else
                gem_writel(macb, USRIO, 0);
 #endif
@@ -945,28 +961,30 @@ static int _macb_init(struct macb_device *macb, const char *name)
 #ifdef CONFIG_AT91FAMILY
                if (macb->phy_interface == PHY_INTERFACE_MODE_RMII) {
                        macb_writel(macb, USRIO,
-                                   MACB_BIT(RMII) | MACB_BIT(CLKEN));
+                                   macb->config->usrio->rmii |
+                                   macb->config->usrio->clken);
                } else {
-                       macb_writel(macb, USRIO, MACB_BIT(CLKEN));
+                       macb_writel(macb, USRIO, macb->config->usrio->clken);
                }
 #else
                if (macb->phy_interface == PHY_INTERFACE_MODE_RMII)
                        macb_writel(macb, USRIO, 0);
                else
-                       macb_writel(macb, USRIO, MACB_BIT(MII));
+                       macb_writel(macb, USRIO, macb->config->usrio->mii);
 #endif
 #else
 #ifdef CONFIG_RMII
 #ifdef CONFIG_AT91FAMILY
-       macb_writel(macb, USRIO, MACB_BIT(RMII) | MACB_BIT(CLKEN));
+       macb_writel(macb, USRIO, macb->config->usrio->rmii |
+                   macb->config->usrio->clken);
 #else
        macb_writel(macb, USRIO, 0);
 #endif
 #else
 #ifdef CONFIG_AT91FAMILY
-       macb_writel(macb, USRIO, MACB_BIT(CLKEN));
+       macb_writel(macb, USRIO, macb->config->usrio->clken);
 #else
-       macb_writel(macb, USRIO, MACB_BIT(MII));
+       macb_writel(macb, USRIO, macb->config->usrio->mii);
 #endif
 #endif /* CONFIG_RMII */
 #endif
@@ -1307,10 +1325,18 @@ static int macb_enable_clk(struct udevice *dev)
 }
 #endif
 
+static const struct macb_usrio_cfg macb_default_usrio = {
+       .mii = MACB_BIT(MII),
+       .rmii = MACB_BIT(RMII),
+       .rgmii = GEM_BIT(RGMII),
+       .clken = MACB_BIT(CLKEN),
+};
+
 static const struct macb_config default_gem_config = {
        .dma_burst_length = 16,
        .hw_dma_cap = HW_DMA_CAP_32B,
        .clk_init = NULL,
+       .usrio = &macb_default_usrio,
 };
 
 static int macb_eth_probe(struct udevice *dev)
@@ -1408,18 +1434,21 @@ static const struct macb_config microchip_config = {
        .dma_burst_length = 16,
        .hw_dma_cap = HW_DMA_CAP_64B,
        .clk_init = NULL,
+       .usrio = &macb_default_usrio,
 };
 
 static const struct macb_config sama5d4_config = {
        .dma_burst_length = 4,
        .hw_dma_cap = HW_DMA_CAP_32B,
        .clk_init = NULL,
+       .usrio = &macb_default_usrio,
 };
 
 static const struct macb_config sifive_config = {
        .dma_burst_length = 16,
        .hw_dma_cap = HW_DMA_CAP_32B,
        .clk_init = macb_sifive_clk_init,
+       .usrio = &macb_default_usrio,
 };
 
 static const struct udevice_id macb_eth_ids[] = {