1 // SPDX-License-Identifier: GPL-2.0+
4  * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
5  * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
44 	clrsetbits_be16(&ccm->cdr, 0x0f00, CCM_CDR_LPDIV(i));  in clock_enter_limp()
46 	/* Enable Limp Mode */  in clock_enter_limp()
47 	setbits_be16(&ccm->misccr, CCM_MISCCR_LIMP);  in clock_enter_limp()
51  * brief   Exit Limp mode
52  * warning The PLL should be set and locked prior to exiting Limp mode
59 	/* Exit Limp mode */  in clock_exit_limp()
60 	clrbits_be16(&ccm->misccr, CCM_MISCCR_LIMP);  in clock_exit_limp()
63 	while (!(in_be32(&pll->psr) & PLL_PSR_LOCK))  in clock_exit_limp()
68  * get_clocks() fills in gd->cpu_clock and gd->bus_clk
78 	pcrvalue = in_be32(&pll->pcr) & 0xFF0F0FFF;  in get_clocks()
82 		bootmode = 0;	/* Normal Mode */  in get_clocks()
85 	bootmode = 3;		/* Serial Mode */  in get_clocks()
89 		/* Normal mode */  in get_clocks()
90 		vco = ((in_be32(&pll->pcr) & 0xFF000000) >> 24) * CONFIG_SYS_INPUT_CLKSRC;  in get_clocks()
93 			pcrvalue = (in_be32(&pll->pcr) & 0x00FFFFFF);  in get_clocks()
95 			out_be32(&pll->pcr, pcrvalue);  in get_clocks()
97 			    ((in_be32(&pll->pcr) & 0xFF000000) >> 24) *  in get_clocks()
100 		gd->arch.vco_clk = vco;	/* Vco clock */  in get_clocks()
102 		/* serial mode */  in get_clocks()
103 		vco = ((in_be32(&pll->pcr) & 0xFF000000) >> 24) * CONFIG_SYS_INPUT_CLKSRC;  in get_clocks()
104 		gd->arch.vco_clk = vco;	/* Vco clock */  in get_clocks()
107 	if ((in_be16(&ccm->ccr) & CCM_MISCCR_LIMP) == CCM_MISCCR_LIMP) {  in get_clocks()
108 		/* Limp mode */  in get_clocks()
110 		gd->arch.inp_clk = CONFIG_SYS_INPUT_CLKSRC; /* Input clock */  in get_clocks()
112 		temp = (in_be32(&pll->pcr) & PLL_PCR_OUTDIV1_MASK) + 1;  in get_clocks()
113 		gd->cpu_clk = vco / temp;	/* cpu clock */  in get_clocks()
115 		temp = ((in_be32(&pll->pcr) & PLL_PCR_OUTDIV2_MASK) >> 4) + 1;  in get_clocks()
116 		gd->arch.flb_clk = vco / temp;	/* flexbus clock */  in get_clocks()
117 		gd->bus_clk = gd->arch.flb_clk;  in get_clocks()
121 	gd->arch.i2c1_clk = gd->bus_clk;  in get_clocks()