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 <[email protected]> --- 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 bce8020..07d05f6 100644 --- a/arch/arm/mach-omap2/pdata-quirks.c +++ b/arch/arm/mach-omap2/pdata-quirks.c @@ -95,6 +95,43 @@ static void __init omap3_zoom_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 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
