brcm47xx: add function to get a gpio pin by name

bcm47xx_nvram_gpio_pin() returns a gpio pin number for a given name based
on configuration data in nvram.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37644 3c298f89-4303-0410-b956-a3cf2f4a3e73
kernel: b53: add support for GPIO reset

This is needed for some switches used on bcm47xx SoCs like the one on the Asus RT-N66U.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37645 3c298f89-4303-0410-b956-a3cf2f4a3e73
brcm47xx: remove support for kernel 3.9

This is not needed any more.


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37646 3c298f89-4303-0410-b956-a3cf2f4a3e73
brcm47xx: improve detection of Linksys WRTSL54GS

This closes #13319

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37647 3c298f89-4303-0410-b956-a3cf2f4a3e73