From 55fb6f3a05deb4a8b5e600cc10bae9555a9f90be Mon Sep 17 00:00:00 2001 From: John Crispin Date: Sun, 23 Jun 2013 15:50:49 +0000 Subject: ralink: update patches Signed-off-by: John Crispin SVN-Revision: 37016 --- .../0156-NET-add-of_get_mac_address_mtd.patch | 83 ++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 target/linux/ramips/patches-3.9/0156-NET-add-of_get_mac_address_mtd.patch (limited to 'target/linux/ramips/patches-3.9/0156-NET-add-of_get_mac_address_mtd.patch') diff --git a/target/linux/ramips/patches-3.9/0156-NET-add-of_get_mac_address_mtd.patch b/target/linux/ramips/patches-3.9/0156-NET-add-of_get_mac_address_mtd.patch new file mode 100644 index 0000000000..b790e6b21c --- /dev/null +++ b/target/linux/ramips/patches-3.9/0156-NET-add-of_get_mac_address_mtd.patch @@ -0,0 +1,83 @@ +From 14b015461adfb540ee46baf432691cc9eda6c046 Mon Sep 17 00:00:00 2001 +From: John Crispin +Date: Sun, 17 Mar 2013 09:29:15 +0100 +Subject: [PATCH 156/164] NET: add of_get_mac_address_mtd() + +Many embedded devices have information such as mac addresses stored inside mtd +devices. This patch allows us to add a property inside a node describing a +network interface. The new property points at a mtd partition with an offset +where the mac address can be found. + +Signed-off-by: John Crispin +--- + drivers/of/of_net.c | 37 +++++++++++++++++++++++++++++++++++++ + include/linux/of_net.h | 1 + + 2 files changed, 38 insertions(+) + +diff --git a/drivers/of/of_net.c b/drivers/of/of_net.c +index ffab033..15f4a71 100644 +--- a/drivers/of/of_net.c ++++ b/drivers/of/of_net.c +@@ -10,6 +10,7 @@ + #include + #include + #include ++#include + + /** + * It maps 'enum phy_interface_t' found in include/linux/phy.h +@@ -92,3 +93,39 @@ const void *of_get_mac_address(struct device_node *np) + return NULL; + } + EXPORT_SYMBOL(of_get_mac_address); ++ ++int of_get_mac_address_mtd(struct device_node *np, void *mac) ++{ ++ struct device_node *mtd_np = NULL; ++ size_t retlen; ++ int size, ret; ++ struct mtd_info *mtd; ++ const char *part; ++ const __be32 *list; ++ phandle phandle; ++ ++ list = of_get_property(np, "mtd-mac-address", &size); ++ if (!list || (size != (2 * sizeof(*list)))) ++ return -ENOENT; ++ ++ phandle = be32_to_cpup(list++); ++ if (phandle) ++ mtd_np = of_find_node_by_phandle(phandle); ++ ++ if (!mtd_np) ++ return -ENOENT; ++ ++ part = of_get_property(mtd_np, "label", NULL); ++ if (!part) ++ part = mtd_np->name; ++ ++ mtd = get_mtd_device_nm(part); ++ if (IS_ERR(mtd)) ++ return PTR_ERR(mtd); ++ ++ ret = mtd_read(mtd, be32_to_cpup(list), 6, &retlen, (u_char *) mac); ++ put_mtd_device(mtd); ++ ++ return ret; ++} ++EXPORT_SYMBOL_GPL(of_get_mac_address_mtd); +diff --git a/include/linux/of_net.h b/include/linux/of_net.h +index f474641..9d3304f 100644 +--- a/include/linux/of_net.h ++++ b/include/linux/of_net.h +@@ -11,6 +11,7 @@ + #include + extern const int of_get_phy_mode(struct device_node *np); + extern const void *of_get_mac_address(struct device_node *np); ++extern int of_get_mac_address_mtd(struct device_node *np, void *mac); + #endif + + #endif /* __LINUX_OF_NET_H */ +-- +1.7.10.4 + -- cgit v1.2.3