MIPS: BCM63XX: let board specify an external GPIO to reset PHY

Some boards may need to reset their external PHY or switch they are
attached to, add a hook for doing this along with providing custom
linux/gpio.h flags for doing this.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: cernekee@gmail.com
Cc: jogo@openwrt.org
Cc: Florian Fainelli <florian@openwrt.org>
Patchwork: https://patchwork.linux-mips.org/patch/5501/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

2 files changed, 10 insertions, 0 deletions

diff --git a/arch/mips/bcm63xx/boards/board_bcm963xx.c b/arch/mips/bcm63xx/boards/board_bcm963xx.c
index 46eabb9aff51..611a420dbfdd 100644
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -883,5 +883,9 @@ int __init board_register_devices(void)
 
         platform_device_register(&bcm63xx_gpio_leds);
 
+        if (board.ephy_reset_gpio && board.ephy_reset_gpio_flags)
+                gpio_request_one(board.ephy_reset_gpio,
+                                board.ephy_reset_gpio_flags, "ephy-reset");
+
         return 0;
 }
diff --git a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
index 682bcf3b492a..5981fe0c3dfb 100644
--- a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
+++ b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
@@ -45,6 +45,12 @@ struct board_info {
 
         /* GPIO LEDs */
         struct gpio_led leds[5];
+
+        /* External PHY reset GPIO */
+        unsigned int ephy_reset_gpio;
+
+        /* External PHY reset GPIO flags from gpio.h */
+        unsigned long ephy_reset_gpio_flags;
 };
 
 #endif /* ! BOARD_BCM963XX_H_ */