brcm63xx: add linux 4.4 support

[openwrt.git] / target / linux / brcm63xx / patches-4.4 / 100-MIPS-BCM63XX-add-USB-host-clock-enable-delay.patch

diff --git a/target/linux/brcm63xx/patches-4.4/100-MIPS-BCM63XX-add-USB-host-clock-enable-delay.patch b/target/linux/brcm63xx/patches-4.4/100-MIPS-BCM63XX-add-USB-host-clock-enable-delay.patch
new file mode 100644 (file)
index 0000000..63d385b
--- /dev/null
+++ b/target/linux/brcm63xx/patches-4.4/100-MIPS-BCM63XX-add-USB-host-clock-enable-delay.patch
@@ -0,0 +1,28 @@
+From 80a2f983e9f44dbc3e01ae31c62d877846a7f791 Mon Sep 17 00:00:00 2001
+From: Florian Fainelli <florian@openwrt.org>
+Date: Mon, 28 Jan 2013 20:06:19 +0100
+Subject: [PATCH 01/11] MIPS: BCM63XX: add USB host clock enable delay
+
+Knowledge of the clock setup delay should remain at the clock level (so
+it can be clock specific and CPU specific). Add the 100 milliseconds
+required clock delay for the USB host clock when it gets enabled.
+
+Signed-off-by: Florian Fainelli <florian@openwrt.org>
+---
+ arch/mips/bcm63xx/clk.c |    5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/arch/mips/bcm63xx/clk.c
++++ b/arch/mips/bcm63xx/clk.c
+@@ -177,6 +177,11 @@ static void usbh_set(struct clk *clk, in
+               bcm_hwclock_set(CKCTL_6362_USBH_EN, enable);
+       else if (BCMCPU_IS_6368())
+               bcm_hwclock_set(CKCTL_6368_USBH_EN, enable);
++      else
++              return;
++
++      if (enable)
++              msleep(100);
+ }
+ 
+ static struct clk clk_usbh = {