[PATCH] ARM: OMAP4: clock: setup USB DPLL during init

[Tero Kristo]

The reset setup for USB DPLL does not allow idle, thus the kernel must
program it during init. This puts the USB DPLL in locked mode, autoidle
for it is enabled automatically later during the boot sequence.

Signed-off-by: Tero Kristo <t-kristo at ti.com>
---
 arch/arm/mach-omap2/clock44xx_data.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c
index e2b701e..e28950a 100644
--- a/arch/arm/mach-omap2/clock44xx_data.c
+++ b/arch/arm/mach-omap2/clock44xx_data.c
@@ -3413,6 +3413,7 @@ int __init omap4xxx_clk_init(void)
 {
 	struct omap_clk *c;
 	u32 cpu_clkflg;
+	struct clk *dpll_usb;
 
 	if (cpu_is_omap443x()) {
 		cpu_mask = RATE_IN_4430;
@@ -3456,5 +3457,12 @@ int __init omap4xxx_clk_init(void)
 	 */
 	clk_enable_init_clocks();
 
+	/*
+	 * Setup USB DPLL
+	 */
+	dpll_usb = clk_get(NULL, "dpll_usb_ck");
+
+	clk_set_rate(dpll_usb, 960000000);
+
 	return 0;
 }
-- 
1.7.4.1


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