Full device tree support for clock control is not yet accomplished. Until
then, configure the 24Mhz of sys_clkout2 to feed an USB-Hub here.
Signed-off-by: Christoph Fritz <chf.fritz@xxxxxxxxxxxxxx>
---
arch/arm/mach-omap2/pdata-quirks.c | 37 ++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index a58590f..9ef7ca8 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -171,6 +171,43 @@ static void __init am3517_evm_legacy_init(void)
}
static void __init omap3_dbb056_legacy_init(void)
{
+ struct clk *clkout2;
+ struct clk *cm96fck;
+
+ /* Reparent clkout2 to 96M_FCK */
+ pr_info("a83x-quirk: Late Reparent clkout2 to 96M_FCK\n");
+ clkout2 = clk_get(NULL, "clkout2_src_ck");
+ if(clkout2 < 0) {
+ pr_err("a83x-quirk: couldn't get clkout2_src_ck\n");
+ return;
+ }
+ cm96fck = clk_get(NULL, "cm_96m_fck");
+ if(cm96fck < 0) {
+ pr_err("a83x-quirk: couldn't get cm_96m_fck\n");
+ return;
+ }
+ if(clk_set_parent(clkout2, cm96fck) < 0) {
+ pr_err("a83x-quirk: couldn't reparent clkout2_src_ck\n");
+ return;
+ }
+
+ /* Set clkout2 to 24MHz for internal usb hub*/
+ pr_info("a83x-quirk: Set clkout2 to 24MHz for internal usb hub\n");
+ clkout2 = clk_get(NULL, "sys_clkout2");
+ if(clkout2 < 0) {
+ pr_err("a83x-quirk: couldn't get sys_clkout2\n");
+ return;
+ }
+ if(clk_set_rate(clkout2, 24000000) < 0) {
+ printk(KERN_ERR "board-omap3evm: couldn't set sys_clkout2 rate\n");
+ return;
+ }
+ if(clk_prepare_enable(clkout2) < 0) {
+ pr_err("a83x-quirk: couldn't enable sys_clkout2\n");
+ return;
+ }
+
+ /* Initialize display */
omap3_dbb056_display_init_of();
}
#endif /* CONFIG_ARCH_OMAP3 */
--
1.7.10.4
--
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