Changeset 07c8680 in rtems-libbsd

Timestamp:

May 24, 2017, 11:16:11 AM (15 months ago)

Author:

Sebastian Huber <sebastian.huber@…>

Branches:

master

Children:

e846288

Parents:

03d1426

git-author:

Sebastian Huber <sebastian.huber@…> (05/24/17 11:16:11)

git-committer:

Sebastian Huber <sebastian.huber@…> (10/23/17 07:24:06)

Message:

dpaa: Get c45 ids

File:

• rtemsbsd/sys/powerpc/fdt_phy.c (modified) (2 diffs)

rtemsbsd/sys/powerpc/fdt_phy.c

@@ -332 +332 @@
 }
 
+#define MDIO_C45_DEVID1 2
+#define MDIO_C45_DEVID2 3
+#define MDIO_C45_DEVINPKG1 5
+#define MDIO_C45_DEVINPKG2 6
+
+struct phy_c45_device_ids {
+        uint32_t devices_in_package;
+        uint32_t device_ids[8];
+};
+
+static int
+c45_get_devices_in_package(struct phy_device *phy_dev, int dev, uint32_t *dip)
+{
+        int val;
+        int reg;
+
+        reg = (dev << 16) | MDIO_C45_DEVINPKG2;
+        val = phy_read(phy_dev, reg);
+        if (val < 0) {
+                return (-EIO);
+        }
+        *dip = (uint32_t)((val & 0xffff) << 16);
+
+        reg = (dev << 16) | MDIO_C45_DEVINPKG1;
+        val = phy_read(phy_dev, reg);
+        if (val < 0) {
+                return (-EIO);
+        }
+        *dip |= (uint32_t)(val & 0xffff);
+        return (0);
+}
+
+static int
+c45_get_id(struct phy_device *phy_dev, int dev, uint32_t *id)
+{
+        int val;
+        int reg;
+
+        reg = (dev << 16) | MDIO_C45_DEVID1;
+        val = phy_read(phy_dev, reg);
+        if (val < 0) {
+                return (-EIO);
+        }
+        *id = (uint32_t)((val & 0xffff) << 16);
+
+        reg = (dev << 16) | MDIO_C45_DEVID2;
+        val = phy_read(phy_dev, reg);
+        if (val < 0) {
+                return (-EIO);
+        }
+        *id |= (uint32_t)(val & 0xffff);
+        return (0);
+}
+
+static bool
+c45_has_no_dip(const uint32_t *dip)
+{
+
+        return ((*dip & 0x1fffffff) == 0x1fffffff);
+}
+
+static int
+c45_get_ids(struct phy_device *phy_dev, struct phy_c45_device_ids *ids)
+{
+        int i;
+        int err;
+
+        for (i = 1; i < ARRAY_SIZE(ids->device_ids) &&
+            ids->devices_in_package == 0; ++i) {
+                err = c45_get_devices_in_package(phy_dev, i,
+                    &ids->devices_in_package);
+                if (err != 0) {
+                        return (err);
+                }
+
+                if (c45_has_no_dip(&ids->devices_in_package)) {
+                        err = c45_get_devices_in_package(phy_dev, 0,
+                            &ids->devices_in_package);
+                        if (err != 0) {
+                                return (err);
+                        }
+
+                        if (c45_has_no_dip(&ids->devices_in_package)) {
+                                return (-EIO);
+                        }
+
+                        break;
+                }
+        }
+
+        for (i = 1; i < ARRAY_SIZE(ids->device_ids); ++i) {
+                if ((ids->devices_in_package & (1U << i)) != 0) {
+                        err = c45_get_id(phy_dev, i, &ids->device_ids[i]);
+                        if (err != 0) {
+                                return (err);
+                        }
+                }
+        }
+
+        return (0);
+}
+
 static struct phy_device *
 phy_obtain(const void *fdt, int is_c45, int mdio_node, int addr)
@@ -354 +456 @@
         }
 
+        if (is_c45) {
+                struct phy_c45_device_ids ids = { 0 };
+
+                c45_get_ids(phy_dev, &ids);
+        }
+
         return (phy_dev);
 }