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-rw-r--r--arch/mips/bcm47xx/workarounds.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/mips/bcm47xx/workarounds.c b/arch/mips/bcm47xx/workarounds.c
new file mode 100644
index 000000000..745c6228e
--- /dev/null
+++ b/arch/mips/bcm47xx/workarounds.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "bcm47xx_private.h"
+
+#include <linux/gpio.h>
+#include <bcm47xx_board.h>
+#include <bcm47xx.h>
+
+static void __init bcm47xx_workarounds_enable_usb_power(int usb_power)
+{
+ int err;
+
+ err = gpio_request_one(usb_power, GPIOF_OUT_INIT_HIGH, "usb_power");
+ if (err)
+ pr_err("Failed to request USB power gpio: %d\n", err);
+ else
+ gpio_free(usb_power);
+}
+
+void __init bcm47xx_workarounds(void)
+{
+ enum bcm47xx_board board = bcm47xx_board_get();
+
+ switch (board) {
+ case BCM47XX_BOARD_NETGEAR_WNR3500L:
+ case BCM47XX_BOARD_NETGEAR_WNR3500L_V2:
+ bcm47xx_workarounds_enable_usb_power(12);
+ break;
+ case BCM47XX_BOARD_NETGEAR_WNDR3400V2:
+ case BCM47XX_BOARD_NETGEAR_WNDR3400_V3:
+ bcm47xx_workarounds_enable_usb_power(21);
+ break;
+ default:
+ /* No workaround(s) needed */
+ break;
+ }
+}