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author | Hauke Mehrtens <hauke@hauke-m.de> | 2014-07-31 21:42:59 +0000 |
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committer | Hauke Mehrtens <hauke@hauke-m.de> | 2014-07-31 21:42:59 +0000 |
commit | f7b3b7db7d3439519f711cc90899289b2195627d (patch) | |
tree | c4aca5c2dfe732dd951787c7a392e5b75acb70d8 /target/linux/brcm47xx/patches-3.14/180-generate-mac-address.patch | |
parent | 3a82681e4fc73a385b7f41fa0587cca5942ed30d (diff) | |
download | mtk-20170518-f7b3b7db7d3439519f711cc90899289b2195627d.zip mtk-20170518-f7b3b7db7d3439519f711cc90899289b2195627d.tar.gz mtk-20170518-f7b3b7db7d3439519f711cc90899289b2195627d.tar.bz2 |
brcm47xx: 3.14: update MIPS patches with versions sent upstream
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
SVN-Revision: 41911
Diffstat (limited to 'target/linux/brcm47xx/patches-3.14/180-generate-mac-address.patch')
-rw-r--r-- | target/linux/brcm47xx/patches-3.14/180-generate-mac-address.patch | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/target/linux/brcm47xx/patches-3.14/180-generate-mac-address.patch b/target/linux/brcm47xx/patches-3.14/180-generate-mac-address.patch deleted file mode 100644 index 9ba9bb2..0000000 --- a/target/linux/brcm47xx/patches-3.14/180-generate-mac-address.patch +++ /dev/null @@ -1,68 +0,0 @@ ---- a/arch/mips/bcm47xx/sprom.c -+++ b/arch/mips/bcm47xx/sprom.c -@@ -28,6 +28,7 @@ - - #include <bcm47xx.h> - #include <bcm47xx_nvram.h> -+#include <linux/if_ether.h> - - static void create_key(const char *prefix, const char *postfix, - const char *name, char *buf, int len) -@@ -631,6 +632,33 @@ static void bcm47xx_fill_sprom_path_r45( - } - } - -+static bool bcm47xx_is_valid_mac(u8 *mac) -+{ -+ return mac && !(mac[0] == 0x00 && mac[1] == 0x90 && mac[2] == 0x4c); -+} -+ -+static int bcm47xx_increase_mac_addr(u8 *mac, u8 num) -+{ -+ u8 *oui = mac + ETH_ALEN/2 - 1; -+ u8 *p = mac + ETH_ALEN - 1; -+ -+ do { -+ (*p) += num; -+ if (*p > num) -+ break; -+ p--; -+ num = 1; -+ } while (p != oui); -+ -+ if (p == oui) { -+ pr_err("unable to fetch mac address\n"); -+ return -ENOENT; -+ } -+ return 0; -+} -+ -+static int mac_addr_used = 2; -+ - static void bcm47xx_fill_sprom_ethernet(struct ssb_sprom *sprom, - const char *prefix, bool fallback) - { -@@ -648,6 +676,23 @@ static void bcm47xx_fill_sprom_ethernet( - - nvram_read_macaddr(prefix, "macaddr", sprom->il0mac, fallback); - nvram_read_macaddr(prefix, "il0macaddr", sprom->il0mac, fallback); -+ -+ /* The address prefix 00:90:4C is used by Broadcom in their initial -+ configuration. When a mac address with the prefix 00:90:4C is used -+ all devices from the same series are sharing the same mac address. -+ To prevent mac address collisions we replace them with a mac address -+ based on the base address. */ -+ if (!bcm47xx_is_valid_mac(sprom->il0mac)) { -+ u8 mac[6]; -+ nvram_read_macaddr(NULL, "et0macaddr", mac, false); -+ if (bcm47xx_is_valid_mac(mac)) { -+ int err = bcm47xx_increase_mac_addr(mac, mac_addr_used); -+ if (!err) { -+ memcpy(sprom->il0mac, mac, ETH_ALEN); -+ mac_addr_used++; -+ } -+ } -+ } - } - - static void bcm47xx_fill_board_data(struct ssb_sprom *sprom, const char *prefix, |