brcm63xx: add preliminary support for 3.13
[openwrt/svn-archive/archive.git] / target / linux / brcm63xx / patches-3.13 / 100-MIPS-BCM63XX-add-USB-host-clock-enable-delay.patch
1 From 80a2f983e9f44dbc3e01ae31c62d877846a7f791 Mon Sep 17 00:00:00 2001
2 From: Florian Fainelli <florian@openwrt.org>
3 Date: Mon, 28 Jan 2013 20:06:19 +0100
4 Subject: [PATCH 01/11] MIPS: BCM63XX: add USB host clock enable delay
5
6 Knowledge of the clock setup delay should remain at the clock level (so
7 it can be clock specific and CPU specific). Add the 100 milliseconds
8 required clock delay for the USB host clock when it gets enabled.
9
10 Signed-off-by: Florian Fainelli <florian@openwrt.org>
11 ---
12 arch/mips/bcm63xx/clk.c | 5 +++++
13 1 file changed, 5 insertions(+)
14
15 --- a/arch/mips/bcm63xx/clk.c
16 +++ b/arch/mips/bcm63xx/clk.c
17 @@ -177,6 +177,11 @@ static void usbh_set(struct clk *clk, in
18 bcm_hwclock_set(CKCTL_6362_USBH_EN, enable);
19 else if (BCMCPU_IS_6368())
20 bcm_hwclock_set(CKCTL_6368_USBH_EN, enable);
21 + else
22 + return;
23 +
24 + if (enable)
25 + msleep(100);
26 }
27
28 static struct clk clk_usbh = {