66 static unsigned int __get_fid(struct iproc_arm_pll *pll)  in __get_fid()  argument
71 	val = readl(pll->base + IPROC_CLK_ARM_DIV_OFFSET);  in __get_fid()
80 	val = readl(pll->base + IPROC_CLK_POLICY_FREQ_OFFSET);  in __get_fid()
84 	val = readl(pll->base + IPROC_CLK_POLICY_DBG_OFFSET);  in __get_fid()
103  *    - PLL channel 0 (slow clock)
104  *    - PLL channel 1 (fast clock)
106 static int __get_mdiv(struct iproc_arm_pll *pll)  in __get_mdiv()  argument
112 	fid = __get_fid(pll);  in __get_mdiv()
121 		val = readl(pll->base + IPROC_CLK_PLLARMC_OFFSET);  in __get_mdiv()
128 		val = readl(pll->base +	IPROC_CLK_PLLARMCTL5_OFFSET);  in __get_mdiv()
141 static unsigned int __get_ndiv(struct iproc_arm_pll *pll)  in __get_ndiv()  argument
146 	val = readl(pll->base + IPROC_CLK_PLLARM_OFFSET_OFFSET);  in __get_ndiv()
160 		val = readl(pll->base + IPROC_CLK_PLLARMA_OFFSET);  in __get_ndiv()
166 		val = readl(pll->base + IPROC_CLK_PLLARMB_OFFSET);  in __get_ndiv()
176  * The output frequency of the ARM PLL is calculated based on the ARM PLL
178  *   pdiv = ARM PLL pre-divider
179  *   ndiv = ARM PLL multiplier
180  *   mdiv = ARM PLL post divider
188 	struct iproc_arm_pll *pll = to_iproc_arm_pll(hw);  in iproc_arm_pll_recalc_rate()  local
195 	val = readl(pll->base + IPROC_CLK_PLLARMC_OFFSET);  in iproc_arm_pll_recalc_rate()
197 		pll->rate = parent_rate;  in iproc_arm_pll_recalc_rate()
198 		return pll->rate;  in iproc_arm_pll_recalc_rate()
201 	/* PLL needs to be locked */  in iproc_arm_pll_recalc_rate()
202 	val = readl(pll->base + IPROC_CLK_PLLARMA_OFFSET);  in iproc_arm_pll_recalc_rate()
204 		pll->rate = 0;  in iproc_arm_pll_recalc_rate()
213 	ndiv = __get_ndiv(pll);  in iproc_arm_pll_recalc_rate()
214 	mdiv = __get_mdiv(pll);  in iproc_arm_pll_recalc_rate()
216 		pll->rate = 0;  in iproc_arm_pll_recalc_rate()
219 	pll->rate = (ndiv * parent_rate) >> 20;  in iproc_arm_pll_recalc_rate()
220 	pll->rate = (pll->rate / pdiv) / mdiv;  in iproc_arm_pll_recalc_rate()
222 	pr_debug("%s: ARM PLL rate: %lu. parent rate: %lu\n", __func__,  in iproc_arm_pll_recalc_rate()
223 		 pll->rate, parent_rate);  in iproc_arm_pll_recalc_rate()
227 	return pll->rate;  in iproc_arm_pll_recalc_rate()
237 	struct iproc_arm_pll *pll;  in iproc_armpll_setup()  local
241 	pll = kzalloc(sizeof(*pll), GFP_KERNEL);  in iproc_armpll_setup()
242 	if (WARN_ON(!pll))  in iproc_armpll_setup()
245 	pll->base = of_iomap(node, 0);  in iproc_armpll_setup()
246 	if (WARN_ON(!pll->base))  in iproc_armpll_setup()
255 	pll->hw.init = &init;  in iproc_armpll_setup()
257 	ret = clk_hw_register(NULL, &pll->hw);  in iproc_armpll_setup()
261 	ret = of_clk_add_hw_provider(node, of_clk_hw_simple_get, &pll->hw);  in iproc_armpll_setup()
268 	clk_hw_unregister(&pll->hw);  in iproc_armpll_setup()
270 	iounmap(pll->base);  in iproc_armpll_setup()
272 	kfree(pll);  in iproc_armpll_setup()