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authorRafał Miłecki <zajec5@gmail.com>2015-02-23 22:59:53 +0000
committerRafał Miłecki <zajec5@gmail.com>2015-02-23 22:59:53 +0000
commit8f979de5a1b78dc4a4a0eb31b6ee33a46cd05405 (patch)
tree5039fd0ff8cfb7e66fbbc575c9cf8dacf62eeb17 /target/linux/generic/patches-4.0/710-phy-add-mdio_register_board_info.patch
parentd3d69d8a8cee37835d99487e65bb5156ef916dc5 (diff)
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generic: early (incomplete!) 4.0 support
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44511 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-4.0/710-phy-add-mdio_register_board_info.patch')
-rw-r--r--target/linux/generic/patches-4.0/710-phy-add-mdio_register_board_info.patch193
1 files changed, 193 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.0/710-phy-add-mdio_register_board_info.patch b/target/linux/generic/patches-4.0/710-phy-add-mdio_register_board_info.patch
new file mode 100644
index 0000000000..2bc91d5d72
--- /dev/null
+++ b/target/linux/generic/patches-4.0/710-phy-add-mdio_register_board_info.patch
@@ -0,0 +1,193 @@
+--- a/drivers/net/phy/mdio_bus.c
++++ b/drivers/net/phy/mdio_bus.c
+@@ -38,6 +38,8 @@
+
+ #include <asm/irq.h>
+
++#include "mdio-boardinfo.h"
++
+ /**
+ * mdiobus_alloc_size - allocate a mii_bus structure
+ * @size: extra amount of memory to allocate for private storage.
+@@ -335,9 +337,21 @@ 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, false);
+@@ -350,6 +364,12 @@ struct phy_device *mdiobus_scan(struct m
+ */
+ of_mdiobus_link_phydev(bus, phydev);
+
++ mutex_lock(&__mdio_board_lock);
++ list_for_each_entry(be, &__mdio_board_list, list)
++ mdiobus_setup_phydev_from_boardinfo(bus, phydev,
++ &be->board_info);
++ mutex_unlock(&__mdio_board_lock);
++
+ err = phy_device_register(phydev);
+ if (err) {
+ phy_device_free(phydev);
+--- a/include/linux/phy.h
++++ b/include/linux/phy.h
+@@ -800,6 +800,23 @@ 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_MDIO_BOARDINFO
++int mdiobus_register_board_info(const struct mdio_board_info *info, unsigned n);
++#else
++static inline int
++mdiobus_register_board_info(const struct mdio_board_info *info, unsigned n)
++{
++ return 0;
++}
++#endif
++
+ /**
+ * module_phy_driver() - Helper macro for registering PHY drivers
+ * @__phy_drivers: array of PHY drivers to register
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -12,6 +12,10 @@ menuconfig PHYLIB
+
+ if PHYLIB
+
++config MDIO_BOARDINFO
++ bool
++ default y
++
+ config SWCONFIG
+ tristate "Switch configuration API"
+ ---help---
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -2,6 +2,8 @@
+
+ libphy-objs := phy.o phy_device.o mdio_bus.o
+
++obj-$(CONFIG_MDIO_BOARDINFO) += mdio-boardinfo.o
++
+ obj-$(CONFIG_PHYLIB) += libphy.o
+ obj-$(CONFIG_SWCONFIG) += swconfig.o
+ obj-$(CONFIG_MARVELL_PHY) += marvell.o
+--- /dev/null
++++ b/drivers/net/phy/mdio-boardinfo.c
+@@ -0,0 +1,58 @@
++/*
++ * mdio-boardinfo.c - collect pre-declarations of PHY devices
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 of the License, or (at your
++ * option) any later version.
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/phy.h>
++#include <linux/slab.h>
++#include <linux/export.h>
++#include <linux/mutex.h>
++#include <linux/phy.h>
++
++#include "mdio-boardinfo.h"
++
++/*
++ * These symbols are exported ONLY FOR the mdio_bus component.
++ * No other users will be supported.
++ */
++
++LIST_HEAD(__mdio_board_list);
++EXPORT_SYMBOL_GPL(__mdio_board_list);
++
++DEFINE_MUTEX(__mdio_board_lock);
++EXPORT_SYMBOL_GPL(__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;
++}
+--- /dev/null
++++ b/drivers/net/phy/mdio-boardinfo.h
+@@ -0,0 +1,22 @@
++/*
++ * mdio-boardinfo.h - boardinfo interface internal to the mdio_bus component
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 of the License, or (at your
++ * option) any later version.
++ *
++ */
++
++#include <linux/mutex.h>
++
++struct mdio_board_entry {
++ struct list_head list;
++ struct mdio_board_info board_info;
++};
++
++/* __mdio_board_lock protects __mdio_board_list
++ * only mdio_bus components are allowed to use these symbols.
++ */
++extern struct mutex __mdio_board_lock;
++extern struct list_head __mdio_board_list;
+--- a/drivers/net/Makefile
++++ b/drivers/net/Makefile
+@@ -16,7 +16,7 @@ obj-$(CONFIG_MII) += mii.o
+ obj-$(CONFIG_MDIO) += mdio.o
+ obj-$(CONFIG_NET) += Space.o loopback.o
+ obj-$(CONFIG_NETCONSOLE) += netconsole.o
+-obj-$(CONFIG_PHYLIB) += phy/
++obj-y += phy/
+ obj-$(CONFIG_RIONET) += rionet.o
+ obj-$(CONFIG_NET_TEAM) += team/
+ obj-$(CONFIG_TUN) += tun.o