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Commit 94e72ae5 authored by Roger Quadros's avatar Roger Quadros Committed by Tero Kristo
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CLK: ti: dra7: Initialize USB_DPLL 



USB_DPLL must be initialized and locked at boot so that
USB modules can work.

Also program USB_DLL_M2 output to half rate.

CC: Mike Turquette <mturquette@linaro.org>
CC: Tero Kristo <t-kristo@ti.com>
Signed-off-by: default avatarRoger Quadros <rogerq@ti.com>
Signed-off-by: default avatarTero Kristo <t-kristo@ti.com>
parent 49b6a5e3

drivers/clk/ti/clk-7xx.c

+11 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 


#define DRA7_DPLL_ABE_DEFFREQ				361267200

#define DRA7_DPLL_GMAC_DEFFREQ				1000000000

#define DRA7_DPLL_USB_DEFFREQ				960000000





static struct ti_dt_clk dra7xx_clks[] = {
@@ -327,5 +328,15 @@ int __init dra7xx_dt_clk_init(void) 
	if (rc)

		pr_err("%s: failed to configure GMAC DPLL!\n", __func__);



	dpll_ck = clk_get_sys(NULL, "dpll_usb_ck");

	rc = clk_set_rate(dpll_ck, DRA7_DPLL_USB_DEFFREQ);

	if (rc)

		pr_err("%s: failed to configure USB DPLL!\n", __func__);



	dpll_ck = clk_get_sys(NULL, "dpll_usb_m2_ck");

	rc = clk_set_rate(dpll_ck, DRA7_DPLL_USB_DEFFREQ/2);

	if (rc)

		pr_err("%s: failed to set USB_DPLL M2 OUT\n", __func__);



	return rc;

}