diff options
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/generic/patches-3.3/710-phy-add-mdio_register_board_info.patch | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.3/710-phy-add-mdio_register_board_info.patch b/target/linux/generic/patches-3.3/710-phy-add-mdio_register_board_info.patch new file mode 100644 index 000000000..77c0a7e3b --- /dev/null +++ b/target/linux/generic/patches-3.3/710-phy-add-mdio_register_board_info.patch @@ -0,0 +1,115 @@ +--- a/drivers/net/phy/mdio_bus.c ++++ b/drivers/net/phy/mdio_bus.c +@@ -36,6 +36,44 @@ + #include <asm/irq.h> + #include <asm/uaccess.h> + ++struct mdio_board_entry { ++ struct list_head list; ++ struct mdio_board_info board_info; ++}; ++ ++static LIST_HEAD(mdio_board_list); ++static DEFINE_MUTEX(mdio_board_lock); ++ ++/** ++ * mdio_register_board_info - register PHY devices for a given board ++ * @info: array of chip descriptors ++ * @n: how many descriptors are provided ++ * Context: can sleep ++ * ++ * The board info passed can safely be __initdata ... but be careful of ++ * any embedded pointers (platform_data, etc), they're copied as-is. ++ */ ++int __init ++mdiobus_register_board_info(struct mdio_board_info const *info, unsigned n) ++{ ++ struct mdio_board_entry *be; ++ int i; ++ ++ be = kzalloc(n * sizeof(*be), GFP_KERNEL); ++ if (!be) ++ return -ENOMEM; ++ ++ for (i = 0; i < n; i++, be++, info++) { ++ memcpy(&be->board_info, info, sizeof(*info)); ++ mutex_lock(&mdio_board_lock); ++ list_add_tail(&be->list, &mdio_board_list); ++ mutex_unlock(&mdio_board_lock); ++ } ++ ++ return 0; ++} ++ ++ + /** + * mdiobus_alloc_size - allocate a mii_bus structure + * @size: extra amount of memory to allocate for private storage. +@@ -192,15 +230,31 @@ void mdiobus_free(struct mii_bus *bus) + } + EXPORT_SYMBOL(mdiobus_free); + ++static void mdiobus_setup_phydev_from_boardinfo(struct mii_bus *bus, ++ struct phy_device *phydev, ++ struct mdio_board_info *bi) ++{ ++ if (strcmp(bus->id, bi->bus_id) || ++ bi->phy_addr != phydev->addr) ++ return; ++ ++ phydev->dev.platform_data = (void *) bi->platform_data; ++} ++ + struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr) + { + struct phy_device *phydev; ++ struct mdio_board_entry *be; + int err; + + phydev = get_phy_device(bus, addr); + if (IS_ERR(phydev) || phydev == NULL) + return phydev; + ++ list_for_each_entry(be, &mdio_board_list, list) ++ mdiobus_setup_phydev_from_boardinfo(bus, phydev, ++ &be->board_info); ++ + err = phy_device_register(phydev); + if (err) { + phy_device_free(phydev); +--- a/include/linux/phy.h ++++ b/include/linux/phy.h +@@ -399,8 +399,8 @@ struct phy_driver { + /* Determines the negotiated speed and duplex */ + int (*read_status)(struct phy_device *phydev); + +- /* +- * Update the value in phydev->link to reflect the ++ /* ++ * Update the value in phydev->link to reflect the + * current link value + */ + int (*update_link)(struct phy_device *phydev); +@@ -543,4 +543,22 @@ int __init mdio_bus_init(void); + void mdio_bus_exit(void); + + extern struct bus_type mdio_bus_type; ++ ++struct mdio_board_info { ++ const char *bus_id; ++ int phy_addr; ++ ++ const void *platform_data; ++}; ++ ++#ifdef CONFIG_PHYLIB ++int mdiobus_register_board_info(struct mdio_board_info const *info, unsigned n); ++#else ++static inline int ++mdiobus_register_board_info(struct mdio_board_info const *info, unsigned n) ++{ ++ return 0; ++} ++#endif ++ + #endif /* __PHY_H */ |