arm: socfpga: Add clock driver for Arria 10

Add clock driver support for Arria 10.

Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>

arch/arm/mach-socfpga/Makefile

@@ -10,7 +10,8 @@
 obj-y	+= misc.o timer.o reset_manager.o clock_manager.o \
 	   fpga_manager.o board.o
 
-obj-$(CONFIG_TARGET_SOCFPGA_ARRIA10) += reset_manager_arria10.o
+obj-$(CONFIG_TARGET_SOCFPGA_ARRIA10) += clock_manager_arria10.o \
+					reset_manager_arria10.o
 
 obj-$(CONFIG_SPL_BUILD) += spl.o freeze_controller.o
 

arch/arm/mach-socfpga/clock_manager.c

@@ -19,7 +19,12 @@ void cm_wait_for_lock(u32 mask)
 	u32 inter_val;
 	u32 retry = 0;
 	do {
+#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
 		inter_val = readl(&clock_manager_base->inter) & mask;
+#elif defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
+		inter_val = readl(&clock_manager_base->stat) & mask;
+#endif
+		/* Wait for stable lock */
 		if (inter_val == mask)
 			retry++;
 		else
@@ -44,7 +49,12 @@ int set_cpu_clk_info(void)
 
 	gd->bd->bi_arm_freq = cm_get_mpu_clk_hz() / 1000000;
 	gd->bd->bi_dsp_freq = 0;
+
+#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
 	gd->bd->bi_ddr_freq = cm_get_sdram_clk_hz() / 1000000;
+#elif defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
+	gd->bd->bi_ddr_freq = 0;
+#endif
 
 	return 0;
 }

arch/arm/mach-socfpga/clock_manager_arria10.c

@@ -0,0 +1,1096 @@
+/*
+ * Copyright (C) 2016-2017 Intel Corporation
+ *
+ * SPDX-License-Identifier:    GPL-2.0
+ */
+
+#include <common.h>
+#include <fdtdec.h>
+#include <asm/io.h>
+#include <asm/arch/clock_manager.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static u32 eosc1_hz;
+static u32 cb_intosc_hz;
+static u32 f2s_free_hz;
+static u32 cm_l4_main_clk_hz;
+static u32 cm_l4_sp_clk_hz;
+static u32 cm_l4_mp_clk_hz;
+static u32 cm_l4_sys_free_clk_hz;
+
+struct mainpll_cfg {
+	u32 vco0_psrc;
+	u32 vco1_denom;
+	u32 vco1_numer;
+	u32 mpuclk;
+	u32 mpuclk_cnt;
+	u32 mpuclk_src;
+	u32 nocclk;
+	u32 nocclk_cnt;
+	u32 nocclk_src;
+	u32 cntr2clk_cnt;
+	u32 cntr3clk_cnt;
+	u32 cntr4clk_cnt;
+	u32 cntr5clk_cnt;
+	u32 cntr6clk_cnt;
+	u32 cntr7clk_cnt;
+	u32 cntr7clk_src;
+	u32 cntr8clk_cnt;
+	u32 cntr9clk_cnt;
+	u32 cntr9clk_src;
+	u32 cntr15clk_cnt;
+	u32 nocdiv_l4mainclk;
+	u32 nocdiv_l4mpclk;
+	u32 nocdiv_l4spclk;
+	u32 nocdiv_csatclk;
+	u32 nocdiv_cstraceclk;
+	u32 nocdiv_cspdbclk;
+};
+
+struct perpll_cfg {
+	u32 vco0_psrc;
+	u32 vco1_denom;
+	u32 vco1_numer;
+	u32 cntr2clk_cnt;
+	u32 cntr2clk_src;
+	u32 cntr3clk_cnt;
+	u32 cntr3clk_src;
+	u32 cntr4clk_cnt;
+	u32 cntr4clk_src;
+	u32 cntr5clk_cnt;
+	u32 cntr5clk_src;
+	u32 cntr6clk_cnt;
+	u32 cntr6clk_src;
+	u32 cntr7clk_cnt;
+	u32 cntr8clk_cnt;
+	u32 cntr8clk_src;
+	u32 cntr9clk_cnt;
+	u32 emacctl_emac0sel;
+	u32 emacctl_emac1sel;
+	u32 emacctl_emac2sel;
+	u32 gpiodiv_gpiodbclk;
+};
+
+struct alteragrp_cfg {
+	u32 nocclk;
+	u32 mpuclk;
+};
+
+static const struct socfpga_clock_manager *clock_manager_base =
+	(struct socfpga_clock_manager *)SOCFPGA_CLKMGR_ADDRESS;
+
+static int of_to_struct(const void *blob, int node, int cfg_len, void *cfg)
+{
+	if (fdtdec_get_int_array(blob, node, "altr,of_reg_value",
+				 (u32 *)cfg, cfg_len)) {
+		/* could not find required property */
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int of_get_input_clks(const void *blob, int node, u32 *val)
+{
+	*val = fdtdec_get_uint(blob, node, "clock-frequency", 0);
+	if (!*val)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int of_get_clk_cfg(const void *blob, struct mainpll_cfg *main_cfg,
+			  struct perpll_cfg *per_cfg,
+			  struct alteragrp_cfg *altrgrp_cfg)
+{
+	int node, child, len;
+	const char *node_name;
+
+	node = fdtdec_next_compatible(blob, 0, COMPAT_ALTERA_SOCFPGA_CLK);
+	if (node < 0)
+		return -EINVAL;
+
+	child = fdt_first_subnode(blob, node);
+	if (child < 0)
+		return -EINVAL;
+
+	child = fdt_first_subnode(blob, child);
+	if (child < 0)
+		return -EINVAL;
+
+	node_name = fdt_get_name(blob, child, &len);
+
+	while (node_name) {
+		if (!strcmp(node_name, "osc1")) {
+			if (of_get_input_clks(blob, child, &eosc1_hz))
+				return -EINVAL;
+		} else if (!strcmp(node_name, "cb_intosc_ls_clk")) {
+			if (of_get_input_clks(blob, child, &cb_intosc_hz))
+				return -EINVAL;
+		} else if (!strcmp(node_name, "f2s_free_clk")) {
+			if (of_get_input_clks(blob, child, &f2s_free_hz))
+				return -EINVAL;
+		} else if (!strcmp(node_name, "main_pll")) {
+			if (of_to_struct(blob, child,
+					 sizeof(*main_cfg)/sizeof(u32),
+					 main_cfg))
+				return -EINVAL;
+		} else if (!strcmp(node_name, "periph_pll")) {
+			if (of_to_struct(blob, child,
+					 sizeof(*per_cfg)/sizeof(u32),
+					 per_cfg))
+				return -EINVAL;
+		} else if (!strcmp(node_name, "altera")) {
+			if (of_to_struct(blob, child,
+					 sizeof(*altrgrp_cfg)/sizeof(u32),
+					 altrgrp_cfg))
+				return -EINVAL;
+
+			main_cfg->mpuclk = altrgrp_cfg->mpuclk;
+			main_cfg->nocclk = altrgrp_cfg->nocclk;
+		}
+		child = fdt_next_subnode(blob, child);
+
+		if (child < 0)
+			break;
+
+		node_name = fdt_get_name(blob, child, &len);
+	}
+
+	return 0;
+}
+
+/* calculate the intended main VCO frequency based on handoff */
+static unsigned int cm_calc_handoff_main_vco_clk_hz
+					(struct mainpll_cfg *main_cfg)
+{
+	unsigned int clk_hz;
+
+	/* Check main VCO clock source: eosc, intosc or f2s? */
+	switch (main_cfg->vco0_psrc) {
+	case CLKMGR_MAINPLL_VCO0_PSRC_EOSC:
+		clk_hz = eosc1_hz;
+		break;
+	case CLKMGR_MAINPLL_VCO0_PSRC_E_INTOSC:
+		clk_hz = cb_intosc_hz;
+		break;
+	case CLKMGR_MAINPLL_VCO0_PSRC_F2S:
+		clk_hz = f2s_free_hz;
+		break;
+	default:
+		return 0;
+	}
+
+	/* calculate the VCO frequency */
+	clk_hz /= 1 + main_cfg->vco1_denom;
+	clk_hz *= 1 + main_cfg->vco1_numer;
+
+	return clk_hz;
+}
+
+/* calculate the intended periph VCO frequency based on handoff */
+static unsigned int cm_calc_handoff_periph_vco_clk_hz(
+		struct mainpll_cfg *main_cfg, struct perpll_cfg *per_cfg)
+{
+	unsigned int clk_hz;
+
+	/* Check periph VCO clock source: eosc, intosc, f2s or mainpll? */
+	switch (per_cfg->vco0_psrc) {
+	case CLKMGR_PERPLL_VCO0_PSRC_EOSC:
+		clk_hz = eosc1_hz;
+		break;
+	case CLKMGR_PERPLL_VCO0_PSRC_E_INTOSC:
+		clk_hz = cb_intosc_hz;
+		break;
+	case CLKMGR_PERPLL_VCO0_PSRC_F2S:
+		clk_hz = f2s_free_hz;
+		break;
+	case CLKMGR_PERPLL_VCO0_PSRC_MAIN:
+		clk_hz = cm_calc_handoff_main_vco_clk_hz(main_cfg);
+		clk_hz /= main_cfg->cntr15clk_cnt;
+		break;
+	default:
+		return 0;
+	}
+
+	/* calculate the VCO frequency */
+	clk_hz /= 1 + per_cfg->vco1_denom;
+	clk_hz *= 1 + per_cfg->vco1_numer;
+
+	return clk_hz;
+}
+
+/* calculate the intended MPU clock frequency based on handoff */
+static unsigned int cm_calc_handoff_mpu_clk_hz(struct mainpll_cfg *main_cfg,
+					       struct perpll_cfg *per_cfg)
+{
+	unsigned int clk_hz;
+
+	/* Check MPU clock source: main, periph, osc1, intosc or f2s? */
+	switch (main_cfg->mpuclk_src) {
+	case CLKMGR_MAINPLL_MPUCLK_SRC_MAIN:
+		clk_hz = cm_calc_handoff_main_vco_clk_hz(main_cfg);
+		clk_hz /= (main_cfg->mpuclk & CLKMGR_MAINPLL_MPUCLK_CNT_MSK)
+			   + 1;
+		break;
+	case CLKMGR_MAINPLL_MPUCLK_SRC_PERI:
+		clk_hz = cm_calc_handoff_periph_vco_clk_hz(main_cfg, per_cfg);
+		clk_hz /= ((main_cfg->mpuclk >>
+			   CLKMGR_MAINPLL_MPUCLK_PERICNT_LSB) &
+			   CLKMGR_MAINPLL_MPUCLK_CNT_MSK) + 1;
+		break;
+	case CLKMGR_MAINPLL_MPUCLK_SRC_OSC1:
+		clk_hz = eosc1_hz;
+		break;
+	case CLKMGR_MAINPLL_MPUCLK_SRC_INTOSC:
+		clk_hz = cb_intosc_hz;
+		break;
+	case CLKMGR_MAINPLL_MPUCLK_SRC_FPGA:
+		clk_hz = f2s_free_hz;
+		break;
+	default:
+		return 0;
+	}
+
+	clk_hz /= main_cfg->mpuclk_cnt + 1;
+	return clk_hz;
+}
+
+/* calculate the intended NOC clock frequency based on handoff */
+static unsigned int cm_calc_handoff_noc_clk_hz(struct mainpll_cfg *main_cfg,
+					       struct perpll_cfg *per_cfg)
+{
+	unsigned int clk_hz;
+
+	/* Check MPU clock source: main, periph, osc1, intosc or f2s? */
+	switch (main_cfg->nocclk_src) {
+	case CLKMGR_MAINPLL_NOCCLK_SRC_MAIN:
+		clk_hz = cm_calc_handoff_main_vco_clk_hz(main_cfg);
+		clk_hz /= (main_cfg->nocclk & CLKMGR_MAINPLL_NOCCLK_CNT_MSK)
+			 + 1;
+		break;
+	case CLKMGR_MAINPLL_NOCCLK_SRC_PERI:
+		clk_hz = cm_calc_handoff_periph_vco_clk_hz(main_cfg, per_cfg);
+		clk_hz /= ((main_cfg->nocclk >>
+			   CLKMGR_MAINPLL_NOCCLK_PERICNT_LSB) &
+			   CLKMGR_MAINPLL_NOCCLK_CNT_MSK) + 1;
+		break;
+	case CLKMGR_MAINPLL_NOCCLK_SRC_OSC1:
+		clk_hz = eosc1_hz;
+		break;
+	case CLKMGR_MAINPLL_NOCCLK_SRC_INTOSC:
+		clk_hz = cb_intosc_hz;
+		break;
+	case CLKMGR_MAINPLL_NOCCLK_SRC_FPGA:
+		clk_hz = f2s_free_hz;
+		break;
+	default:
+		return 0;
+	}
+
+	clk_hz /= main_cfg->nocclk_cnt + 1;
+	return clk_hz;
+}
+
+/* return 1 if PLL ramp is required */
+static int cm_is_pll_ramp_required(int main0periph1,
+				   struct mainpll_cfg *main_cfg,
+				   struct perpll_cfg *per_cfg)
+{
+	/* Check for main PLL */
+	if (main0periph1 == 0) {
+		/*
+		 * PLL ramp is not required if both MPU clock and NOC clock are
+		 * not sourced from main PLL
+		 */
+		if (main_cfg->mpuclk_src != CLKMGR_MAINPLL_MPUCLK_SRC_MAIN &&
+		    main_cfg->nocclk_src != CLKMGR_MAINPLL_NOCCLK_SRC_MAIN)
+			return 0;
+
+		/*
+		 * PLL ramp is required if MPU clock is sourced from main PLL
+		 * and MPU clock is over 900MHz (as advised by HW team)
+		 */
+		if (main_cfg->mpuclk_src == CLKMGR_MAINPLL_MPUCLK_SRC_MAIN &&
+		    (cm_calc_handoff_mpu_clk_hz(main_cfg, per_cfg) >
+		     CLKMGR_PLL_RAMP_MPUCLK_THRESHOLD_HZ))
+			return 1;
+
+		/*
+		 * PLL ramp is required if NOC clock is sourced from main PLL
+		 * and NOC clock is over 300MHz (as advised by HW team)
+		 */
+		if (main_cfg->nocclk_src == CLKMGR_MAINPLL_NOCCLK_SRC_MAIN &&
+		    (cm_calc_handoff_noc_clk_hz(main_cfg, per_cfg) >
+		     CLKMGR_PLL_RAMP_NOCCLK_THRESHOLD_HZ))
+			return 2;
+
+	} else if (main0periph1 == 1) {
+		/*
+		 * PLL ramp is not required if both MPU clock and NOC clock are
+		 * not sourced from periph PLL
+		 */
+		if (main_cfg->mpuclk_src != CLKMGR_MAINPLL_MPUCLK_SRC_PERI &&
+		    main_cfg->nocclk_src != CLKMGR_MAINPLL_NOCCLK_SRC_PERI)
+			return 0;
+
+		/*
+		 * PLL ramp is required if MPU clock are source from periph PLL
+		 * and MPU clock is over 900MHz (as advised by HW team)
+		 */
+		if (main_cfg->mpuclk_src == CLKMGR_MAINPLL_MPUCLK_SRC_PERI &&
+		    (cm_calc_handoff_mpu_clk_hz(main_cfg, per_cfg) >
+		     CLKMGR_PLL_RAMP_MPUCLK_THRESHOLD_HZ))
+			return 1;
+
+		/*
+		 * PLL ramp is required if NOC clock are source from periph PLL
+		 * and NOC clock is over 300MHz (as advised by HW team)
+		 */
+		if (main_cfg->nocclk_src == CLKMGR_MAINPLL_NOCCLK_SRC_PERI &&
+		    (cm_calc_handoff_noc_clk_hz(main_cfg, per_cfg) >
+		     CLKMGR_PLL_RAMP_NOCCLK_THRESHOLD_HZ))
+			return 2;
+	}
+
+	return 0;
+}
+
+static u32 cm_calculate_numer(struct mainpll_cfg *main_cfg,
+			      struct perpll_cfg *per_cfg,
+			      u32 safe_hz, u32 clk_hz)
+{
+	u32 cnt;
+	u32 clk;
+	u32 shift;
+	u32 mask;
+	u32 denom;
+
+	if (main_cfg->mpuclk_src == CLKMGR_MAINPLL_MPUCLK_SRC_MAIN) {
+		cnt = main_cfg->mpuclk_cnt;
+		clk = main_cfg->mpuclk;
+		shift = 0;
+		mask = CLKMGR_MAINPLL_MPUCLK_CNT_MSK;
+		denom = main_cfg->vco1_denom;
+	} else if (main_cfg->nocclk_src == CLKMGR_MAINPLL_NOCCLK_SRC_MAIN) {
+		cnt = main_cfg->nocclk_cnt;
+		clk = main_cfg->nocclk;
+		shift = 0;
+		mask = CLKMGR_MAINPLL_NOCCLK_CNT_MSK;
+		denom = main_cfg->vco1_denom;
+	} else if (main_cfg->mpuclk_src == CLKMGR_MAINPLL_MPUCLK_SRC_PERI) {
+		cnt = main_cfg->mpuclk_cnt;
+		clk = main_cfg->mpuclk;
+		shift = CLKMGR_MAINPLL_MPUCLK_PERICNT_LSB;
+		mask = CLKMGR_MAINPLL_MPUCLK_CNT_MSK;
+		denom = per_cfg->vco1_denom;
+	} else if (main_cfg->nocclk_src == CLKMGR_MAINPLL_NOCCLK_SRC_PERI) {
+		cnt = main_cfg->nocclk_cnt;
+		clk = main_cfg->nocclk;
+		shift = CLKMGR_MAINPLL_NOCCLK_PERICNT_LSB;
+		mask = CLKMGR_MAINPLL_NOCCLK_CNT_MSK;
+		denom = per_cfg->vco1_denom;
+	} else {
+		return 0;
+	}
+
+	return (safe_hz / clk_hz) * (cnt + 1) * (((clk >> shift) & mask) + 1) *
+		(1 + denom) - 1;
+}
+
+/*
+ * Calculate the new PLL numerator which is based on existing DTS hand off and
+ * intended safe frequency (safe_hz). Note that PLL ramp is only modifying the
+ * numerator while maintaining denominator as denominator will influence the
+ * jitter condition. Please refer A10 HPS TRM for the jitter guide. Note final
+ * value for numerator is minus with 1 to cater our register value
+ * representation.
+ */
+static unsigned int cm_calc_safe_pll_numer(int main0periph1,
+					   struct mainpll_cfg *main_cfg,
+					   struct perpll_cfg *per_cfg,
+					   unsigned int safe_hz)
+{
+	unsigned int clk_hz = 0;
+
+	/* Check for main PLL */
+	if (main0periph1 == 0) {
+		/* Check main VCO clock source: eosc, intosc or f2s? */
+		switch (main_cfg->vco0_psrc) {
+		case CLKMGR_MAINPLL_VCO0_PSRC_EOSC:
+			clk_hz = eosc1_hz;
+			break;
+		case CLKMGR_MAINPLL_VCO0_PSRC_E_INTOSC:
+			clk_hz = cb_intosc_hz;
+			break;
+		case CLKMGR_MAINPLL_VCO0_PSRC_F2S:
+			clk_hz = f2s_free_hz;
+			break;
+		default:
+			return 0;
+		}
+	} else if (main0periph1 == 1) {
+		/* Check periph VCO clock source: eosc, intosc, f2s, mainpll */
+		switch (per_cfg->vco0_psrc) {
+		case CLKMGR_PERPLL_VCO0_PSRC_EOSC:
+			clk_hz = eosc1_hz;
+			break;
+		case CLKMGR_PERPLL_VCO0_PSRC_E_INTOSC:
+			clk_hz = cb_intosc_hz;
+			break;
+		case CLKMGR_PERPLL_VCO0_PSRC_F2S:
+			clk_hz = f2s_free_hz;
+			break;
+		case CLKMGR_PERPLL_VCO0_PSRC_MAIN:
+			clk_hz = cm_calc_handoff_main_vco_clk_hz(main_cfg);
+			clk_hz /= main_cfg->cntr15clk_cnt;
+			break;
+		default:
+			return 0;
+		}
+	} else {
+		return 0;
+	}
+
+	return cm_calculate_numer(main_cfg, per_cfg, safe_hz, clk_hz);
+}
+
+/* ramping the main PLL to final value */
+static void cm_pll_ramp_main(struct mainpll_cfg *main_cfg,
+			     struct perpll_cfg *per_cfg,
+			     unsigned int pll_ramp_main_hz)
+{
+	unsigned int clk_hz = 0, clk_incr_hz = 0, clk_final_hz = 0;
+
+	/* find out the increment value */
+	if (main_cfg->mpuclk_src == CLKMGR_MAINPLL_MPUCLK_SRC_MAIN) {
+		clk_incr_hz = CLKMGR_PLL_RAMP_MPUCLK_INCREMENT_HZ;
+		clk_final_hz = cm_calc_handoff_mpu_clk_hz(main_cfg, per_cfg);
+	} else if (main_cfg->nocclk_src == CLKMGR_MAINPLL_NOCCLK_SRC_MAIN) {
+		clk_incr_hz = CLKMGR_PLL_RAMP_NOCCLK_INCREMENT_HZ;
+		clk_final_hz = cm_calc_handoff_noc_clk_hz(main_cfg, per_cfg);
+	}
+
+	/* execute the ramping here */
+	for (clk_hz = pll_ramp_main_hz + clk_incr_hz;
+	     clk_hz < clk_final_hz; clk_hz += clk_incr_hz) {
+		writel((main_cfg->vco1_denom <<
+			CLKMGR_MAINPLL_VCO1_DENOM_LSB) |
+			cm_calc_safe_pll_numer(0, main_cfg, per_cfg, clk_hz),
+			&clock_manager_base->main_pll.vco1);
+		mdelay(1);
+		cm_wait_for_lock(LOCKED_MASK);
+	}
+	writel((main_cfg->vco1_denom << CLKMGR_MAINPLL_VCO1_DENOM_LSB) |
+		main_cfg->vco1_numer, &clock_manager_base->main_pll.vco1);
+	mdelay(1);
+	cm_wait_for_lock(LOCKED_MASK);
+}
+
+/* ramping the periph PLL to final value */
+static void cm_pll_ramp_periph(struct mainpll_cfg *main_cfg,
+			       struct perpll_cfg *per_cfg,
+			       unsigned int pll_ramp_periph_hz)
+{
+	unsigned int clk_hz = 0, clk_incr_hz = 0, clk_final_hz = 0;
+
+	/* find out the increment value */
+	if (main_cfg->mpuclk_src == CLKMGR_MAINPLL_MPUCLK_SRC_PERI) {
+		clk_incr_hz = CLKMGR_PLL_RAMP_MPUCLK_INCREMENT_HZ;
+		clk_final_hz = cm_calc_handoff_mpu_clk_hz(main_cfg, per_cfg);
+	} else if (main_cfg->nocclk_src == CLKMGR_MAINPLL_NOCCLK_SRC_PERI) {
+		clk_incr_hz = CLKMGR_PLL_RAMP_NOCCLK_INCREMENT_HZ;
+		clk_final_hz = cm_calc_handoff_noc_clk_hz(main_cfg, per_cfg);
+	}
+	/* execute the ramping here */
+	for (clk_hz = pll_ramp_periph_hz + clk_incr_hz;
+	     clk_hz < clk_final_hz; clk_hz += clk_incr_hz) {
+		writel((per_cfg->vco1_denom << CLKMGR_PERPLL_VCO1_DENOM_LSB) |
+			cm_calc_safe_pll_numer(1, main_cfg, per_cfg, clk_hz),
+			&clock_manager_base->per_pll.vco1);
+		mdelay(1);
+		cm_wait_for_lock(LOCKED_MASK);
+	}
+	writel((per_cfg->vco1_denom << CLKMGR_PERPLL_VCO1_DENOM_LSB) |
+		per_cfg->vco1_numer, &clock_manager_base->per_pll.vco1);
+	mdelay(1);
+	cm_wait_for_lock(LOCKED_MASK);
+}
+
+/*
+ * Setup clocks while making no assumptions of the
+ * previous state of the clocks.
+ *
+ * Start by being paranoid and gate all sw managed clocks
+ *
+ * Put all plls in bypass
+ *
+ * Put all plls VCO registers back to reset value (bgpwr dwn).
+ *
+ * Put peripheral and main pll src to reset value to avoid glitch.
+ *
+ * Delay 5 us.
+ *
+ * Deassert bg pwr dn and set numerator and denominator
+ *
+ * Start 7 us timer.
+ *
+ * set internal dividers
+ *
+ * Wait for 7 us timer.
+ *
+ * Enable plls
+ *
+ * Set external dividers while plls are locking
+ *
+ * Wait for pll lock
+ *
+ * Assert/deassert outreset all.
+ *
+ * Take all pll's out of bypass
+ *
+ * Clear safe mode
+ *
+ * set source main and peripheral clocks
+ *
+ * Ungate clocks
+ */
+
+static int cm_full_cfg(struct mainpll_cfg *main_cfg, struct perpll_cfg *per_cfg)
+{
+	unsigned int pll_ramp_main_hz = 0, pll_ramp_periph_hz = 0,
+		ramp_required;
+
+	/* gate off all mainpll clock excpet HW managed clock */
+	writel(CLKMGR_MAINPLL_EN_S2FUSER0CLKEN_SET_MSK |
+		CLKMGR_MAINPLL_EN_HMCPLLREFCLKEN_SET_MSK,
+		&clock_manager_base->main_pll.enr);
+
+	/* now we can gate off the rest of the peripheral clocks */
+	writel(0, &clock_manager_base->per_pll.en);
+
+	/* Put all plls in external bypass */
+	writel(CLKMGR_MAINPLL_BYPASS_RESET,
+	       &clock_manager_base->main_pll.bypasss);
+	writel(CLKMGR_PERPLL_BYPASS_RESET,
+	       &clock_manager_base->per_pll.bypasss);
+
+	/*
+	 * Put all plls VCO registers back to reset value.
+	 * Some code might have messed with them. At same time set the
+	 * desired clock source
+	 */
+	writel(CLKMGR_MAINPLL_VCO0_RESET |
+	       CLKMGR_MAINPLL_VCO0_REGEXTSEL_SET_MSK |
+	       (main_cfg->vco0_psrc << CLKMGR_MAINPLL_VCO0_PSRC_LSB),
+	       &clock_manager_base->main_pll.vco0);
+
+	writel(CLKMGR_PERPLL_VCO0_RESET |
+	       CLKMGR_PERPLL_VCO0_REGEXTSEL_SET_MSK |
+	       (per_cfg->vco0_psrc << CLKMGR_PERPLL_VCO0_PSRC_LSB),
+	       &clock_manager_base->per_pll.vco0);
+
+	writel(CLKMGR_MAINPLL_VCO1_RESET, &clock_manager_base->main_pll.vco1);
+	writel(CLKMGR_PERPLL_VCO1_RESET, &clock_manager_base->per_pll.vco1);
+
+	/* clear the interrupt register status register */
+	writel(CLKMGR_CLKMGR_INTR_MAINPLLLOST_SET_MSK |
+		CLKMGR_CLKMGR_INTR_PERPLLLOST_SET_MSK |
+		CLKMGR_CLKMGR_INTR_MAINPLLRFSLIP_SET_MSK |
+		CLKMGR_CLKMGR_INTR_PERPLLRFSLIP_SET_MSK |
+		CLKMGR_CLKMGR_INTR_MAINPLLFBSLIP_SET_MSK |
+		CLKMGR_CLKMGR_INTR_PERPLLFBSLIP_SET_MSK |
+		CLKMGR_CLKMGR_INTR_MAINPLLACHIEVED_SET_MSK |
+		CLKMGR_CLKMGR_INTR_PERPLLACHIEVED_SET_MSK,
+		&clock_manager_base->intr);
+
+	/* Program VCO Numerator and Denominator for main PLL */
+	ramp_required = cm_is_pll_ramp_required(0, main_cfg, per_cfg);
+	if (ramp_required) {
+		/* set main PLL to safe starting threshold frequency */
+		if (ramp_required == 1)
+			pll_ramp_main_hz = CLKMGR_PLL_RAMP_MPUCLK_THRESHOLD_HZ;
+		else if (ramp_required == 2)
+			pll_ramp_main_hz = CLKMGR_PLL_RAMP_NOCCLK_THRESHOLD_HZ;
+
+		writel((main_cfg->vco1_denom << CLKMGR_MAINPLL_VCO1_DENOM_LSB) |
+			cm_calc_safe_pll_numer(0, main_cfg, per_cfg,
+					       pll_ramp_main_hz),
+			&clock_manager_base->main_pll.vco1);
+	} else
+		writel((main_cfg->vco1_denom << CLKMGR_MAINPLL_VCO1_DENOM_LSB) |
+			main_cfg->vco1_numer,
+			&clock_manager_base->main_pll.vco1);
+
+	/* Program VCO Numerator and Denominator for periph PLL */
+	ramp_required = cm_is_pll_ramp_required(1, main_cfg, per_cfg);
+	if (ramp_required) {
+		/* set periph PLL to safe starting threshold frequency */
+		if (ramp_required == 1)
+			pll_ramp_periph_hz =
+				CLKMGR_PLL_RAMP_MPUCLK_THRESHOLD_HZ;
+		else if (ramp_required == 2)
+			pll_ramp_periph_hz =
+				CLKMGR_PLL_RAMP_NOCCLK_THRESHOLD_HZ;
+
+		writel((per_cfg->vco1_denom << CLKMGR_PERPLL_VCO1_DENOM_LSB) |
+			cm_calc_safe_pll_numer(1, main_cfg, per_cfg,
+					       pll_ramp_periph_hz),
+			&clock_manager_base->per_pll.vco1);
+	} else
+		writel((per_cfg->vco1_denom << CLKMGR_PERPLL_VCO1_DENOM_LSB) |
+			per_cfg->vco1_numer,
+			&clock_manager_base->per_pll.vco1);
+
+	/* Wait for at least 5 us */
+	udelay(5);
+
+	/* Now deassert BGPWRDN and PWRDN */
+	clrbits_le32(&clock_manager_base->main_pll.vco0,
+		     CLKMGR_MAINPLL_VCO0_BGPWRDN_SET_MSK |
+		     CLKMGR_MAINPLL_VCO0_PWRDN_SET_MSK);
+	clrbits_le32(&clock_manager_base->per_pll.vco0,
+		     CLKMGR_PERPLL_VCO0_BGPWRDN_SET_MSK |
+		     CLKMGR_PERPLL_VCO0_PWRDN_SET_MSK);
+
+	/* Wait for at least 7 us */
+	udelay(7);
+
+	/* enable the VCO and disable the external regulator to PLL */
+	writel((readl(&clock_manager_base->main_pll.vco0) &
+		~CLKMGR_MAINPLL_VCO0_REGEXTSEL_SET_MSK) |
+		CLKMGR_MAINPLL_VCO0_EN_SET_MSK,
+		&clock_manager_base->main_pll.vco0);
+	writel((readl(&clock_manager_base->per_pll.vco0) &
+		~CLKMGR_PERPLL_VCO0_REGEXTSEL_SET_MSK) |
+		CLKMGR_PERPLL_VCO0_EN_SET_MSK,
+		&clock_manager_base->per_pll.vco0);
+
+	/* setup all the main PLL counter and clock source */
+	writel(main_cfg->nocclk,
+	       SOCFPGA_CLKMGR_ADDRESS + CLKMGR_MAINPLL_NOC_CLK_OFFSET);
+	writel(main_cfg->mpuclk,
+	       SOCFPGA_CLKMGR_ADDRESS + CLKMGR_ALTERAGRP_MPU_CLK_OFFSET);
+
+	/* main_emaca_clk divider */
+	writel(main_cfg->cntr2clk_cnt, &clock_manager_base->main_pll.cntr2clk);
+	/* main_emacb_clk divider */
+	writel(main_cfg->cntr3clk_cnt, &clock_manager_base->main_pll.cntr3clk);
+	/* main_emac_ptp_clk divider */
+	writel(main_cfg->cntr4clk_cnt, &clock_manager_base->main_pll.cntr4clk);
+	/* main_gpio_db_clk divider */
+	writel(main_cfg->cntr5clk_cnt, &clock_manager_base->main_pll.cntr5clk);
+	/* main_sdmmc_clk divider */
+	writel(main_cfg->cntr6clk_cnt, &clock_manager_base->main_pll.cntr6clk);
+	/* main_s2f_user0_clk divider */
+	writel(main_cfg->cntr7clk_cnt |
+	       (main_cfg->cntr7clk_src << CLKMGR_MAINPLL_CNTR7CLK_SRC_LSB),
+	       &clock_manager_base->main_pll.cntr7clk);
+	/* main_s2f_user1_clk divider */
+	writel(main_cfg->cntr8clk_cnt, &clock_manager_base->main_pll.cntr8clk);
+	/* main_hmc_pll_clk divider */
+	writel(main_cfg->cntr9clk_cnt |
+	       (main_cfg->cntr9clk_src << CLKMGR_MAINPLL_CNTR9CLK_SRC_LSB),
+	       &clock_manager_base->main_pll.cntr9clk);
+	/* main_periph_ref_clk divider */
+	writel(main_cfg->cntr15clk_cnt,
+	       &clock_manager_base->main_pll.cntr15clk);
+
+	/* setup all the peripheral PLL counter and clock source */
+	/* peri_emaca_clk divider */
+	writel(per_cfg->cntr2clk_cnt |
+	       (per_cfg->cntr2clk_src << CLKMGR_PERPLL_CNTR2CLK_SRC_LSB),
+	       &clock_manager_base->per_pll.cntr2clk);
+	/* peri_emacb_clk divider */
+	writel(per_cfg->cntr3clk_cnt |
+	       (per_cfg->cntr3clk_src << CLKMGR_PERPLL_CNTR3CLK_SRC_LSB),
+	       &clock_manager_base->per_pll.cntr3clk);
+	/* peri_emac_ptp_clk divider */
+	writel(per_cfg->cntr4clk_cnt |
+	       (per_cfg->cntr4clk_src << CLKMGR_PERPLL_CNTR4CLK_SRC_LSB),
+	       &clock_manager_base->per_pll.cntr4clk);
+	/* peri_gpio_db_clk divider */
+	writel(per_cfg->cntr5clk_cnt |
+	       (per_cfg->cntr5clk_src << CLKMGR_PERPLL_CNTR5CLK_SRC_LSB),
+	       &clock_manager_base->per_pll.cntr5clk);
+	/* peri_sdmmc_clk divider */
+	writel(per_cfg->cntr6clk_cnt |
+	       (per_cfg->cntr6clk_src << CLKMGR_PERPLL_CNTR6CLK_SRC_LSB),
+	       &clock_manager_base->per_pll.cntr6clk);
+	/* peri_s2f_user0_clk divider */
+	writel(per_cfg->cntr7clk_cnt, &clock_manager_base->per_pll.cntr7clk);
+	/* peri_s2f_user1_clk divider */
+	writel(per_cfg->cntr8clk_cnt |
+	       (per_cfg->cntr8clk_src << CLKMGR_PERPLL_CNTR8CLK_SRC_LSB),
+	       &clock_manager_base->per_pll.cntr8clk);
+	/* peri_hmc_pll_clk divider */
+	writel(per_cfg->cntr9clk_cnt, &clock_manager_base->per_pll.cntr9clk);
+
+	/* setup all the external PLL counter */
+	/* mpu wrapper / external divider */
+	writel(main_cfg->mpuclk_cnt |
+	       (main_cfg->mpuclk_src << CLKMGR_MAINPLL_MPUCLK_SRC_LSB),
+	       &clock_manager_base->main_pll.mpuclk);
+	/* NOC wrapper / external divider */
+	writel(main_cfg->nocclk_cnt |
+	       (main_cfg->nocclk_src << CLKMGR_MAINPLL_NOCCLK_SRC_LSB),
+	       &clock_manager_base->main_pll.nocclk);
+	/* NOC subclock divider such as l4 */
+	writel(main_cfg->nocdiv_l4mainclk |
+	       (main_cfg->nocdiv_l4mpclk <<
+		CLKMGR_MAINPLL_NOCDIV_L4MPCLK_LSB) |
+	       (main_cfg->nocdiv_l4spclk <<
+		CLKMGR_MAINPLL_NOCDIV_L4SPCLK_LSB) |
+	       (main_cfg->nocdiv_csatclk <<
+		CLKMGR_MAINPLL_NOCDIV_CSATCLK_LSB) |
+	       (main_cfg->nocdiv_cstraceclk <<
+		CLKMGR_MAINPLL_NOCDIV_CSTRACECLK_LSB) |
+	       (main_cfg->nocdiv_cspdbclk <<
+		CLKMGR_MAINPLL_NOCDIV_CSPDBGCLK_LSB),
+		&clock_manager_base->main_pll.nocdiv);
+	/* gpio_db external divider */
+	writel(per_cfg->gpiodiv_gpiodbclk,
+	       &clock_manager_base->per_pll.gpiodiv);
+
+	/* setup the EMAC clock mux select */
+	writel((per_cfg->emacctl_emac0sel <<
+		CLKMGR_PERPLL_EMACCTL_EMAC0SEL_LSB) |
+	       (per_cfg->emacctl_emac1sel <<
+		CLKMGR_PERPLL_EMACCTL_EMAC1SEL_LSB) |
+	       (per_cfg->emacctl_emac2sel <<
+		CLKMGR_PERPLL_EMACCTL_EMAC2SEL_LSB),
+	       &clock_manager_base->per_pll.emacctl);
+
+	/* at this stage, check for PLL lock status */
+	cm_wait_for_lock(LOCKED_MASK);
+
+	/*
+	 * after locking, but before taking out of bypass,
+	 * assert/deassert outresetall
+	 */
+	/* assert mainpll outresetall */
+	setbits_le32(&clock_manager_base->main_pll.vco0,
+		     CLKMGR_MAINPLL_VCO0_OUTRSTALL_SET_MSK);
+	/* assert perpll outresetall */
+	setbits_le32(&clock_manager_base->per_pll.vco0,
+		     CLKMGR_PERPLL_VCO0_OUTRSTALL_SET_MSK);
+	/* de-assert mainpll outresetall */
+	clrbits_le32(&clock_manager_base->main_pll.vco0,
+		     CLKMGR_MAINPLL_VCO0_OUTRSTALL_SET_MSK);
+	/* de-assert perpll outresetall */
+	clrbits_le32(&clock_manager_base->per_pll.vco0,
+		     CLKMGR_PERPLL_VCO0_OUTRSTALL_SET_MSK);
+
+	/* Take all PLLs out of bypass when boot mode is cleared. */
+	/* release mainpll from bypass */
+	writel(CLKMGR_MAINPLL_BYPASS_RESET,
+	       &clock_manager_base->main_pll.bypassr);
+	/* wait till Clock Manager is not busy */
+	cm_wait_for_fsm();
+
+	/* release perpll from bypass */
+	writel(CLKMGR_PERPLL_BYPASS_RESET,
+	       &clock_manager_base->per_pll.bypassr);
+	/* wait till Clock Manager is not busy */
+	cm_wait_for_fsm();
+
+	/* clear boot mode */
+	clrbits_le32(&clock_manager_base->ctrl,
+		     CLKMGR_CLKMGR_CTL_BOOTMOD_SET_MSK);
+	/* wait till Clock Manager is not busy */
+	cm_wait_for_fsm();
+
+	/* At here, we need to ramp to final value if needed */
+	if (pll_ramp_main_hz != 0)
+		cm_pll_ramp_main(main_cfg, per_cfg, pll_ramp_main_hz);
+	if (pll_ramp_periph_hz != 0)
+		cm_pll_ramp_periph(main_cfg, per_cfg, pll_ramp_periph_hz);
+
+	/* Now ungate non-hw-managed clocks */
+	writel(CLKMGR_MAINPLL_EN_S2FUSER0CLKEN_SET_MSK |
+		CLKMGR_MAINPLL_EN_HMCPLLREFCLKEN_SET_MSK,
+		&clock_manager_base->main_pll.ens);
+	writel(CLKMGR_PERPLL_EN_RESET, &clock_manager_base->per_pll.ens);
+
+	/* Clear the loss lock and slip bits as they might set during
+	clock reconfiguration */
+	writel(CLKMGR_CLKMGR_INTR_MAINPLLLOST_SET_MSK |
+	       CLKMGR_CLKMGR_INTR_PERPLLLOST_SET_MSK |
+	       CLKMGR_CLKMGR_INTR_MAINPLLRFSLIP_SET_MSK |
+	       CLKMGR_CLKMGR_INTR_PERPLLRFSLIP_SET_MSK |
+	       CLKMGR_CLKMGR_INTR_MAINPLLFBSLIP_SET_MSK |
+	       CLKMGR_CLKMGR_INTR_PERPLLFBSLIP_SET_MSK,
+	       &clock_manager_base->intr);
+
+	return 0;
+}
+
+void cm_use_intosc(void)
+{
+	setbits_le32(&clock_manager_base->ctrl,
+		     CLKMGR_CLKMGR_CTL_BOOTCLK_INTOSC_SET_MSK);
+}
+
+unsigned int cm_get_noc_clk_hz(void)
+{
+	unsigned int clk_src, divisor, nocclk, src_hz;
+
+	nocclk = readl(&clock_manager_base->main_pll.nocclk);
+	clk_src = (nocclk >> CLKMGR_MAINPLL_NOCCLK_SRC_LSB) &
+		  CLKMGR_MAINPLL_NOCCLK_SRC_MSK;
+
+	divisor = 1 + (nocclk & CLKMGR_MAINPLL_NOCDIV_MSK);
+
+	if (clk_src == CLKMGR_PERPLLGRP_SRC_MAIN) {
+		src_hz = cm_get_main_vco_clk_hz();
+		src_hz /= 1 +
+		(readl(SOCFPGA_CLKMGR_ADDRESS + CLKMGR_MAINPLL_NOC_CLK_OFFSET) &
+		CLKMGR_MAINPLL_NOCCLK_CNT_MSK);
+	} else if (clk_src == CLKMGR_PERPLLGRP_SRC_PERI) {
+		src_hz = cm_get_per_vco_clk_hz();
+		src_hz /= 1 +
+		((readl(SOCFPGA_CLKMGR_ADDRESS +
+			CLKMGR_MAINPLL_NOC_CLK_OFFSET) >>
+			CLKMGR_MAINPLL_NOCCLK_PERICNT_LSB) &
+			CLKMGR_MAINPLL_NOCCLK_CNT_MSK);
+	} else if (clk_src == CLKMGR_PERPLLGRP_SRC_OSC1) {
+		src_hz = eosc1_hz;
+	} else if (clk_src == CLKMGR_PERPLLGRP_SRC_INTOSC) {
+		src_hz = cb_intosc_hz;
+	} else if (clk_src == CLKMGR_PERPLLGRP_SRC_FPGA) {
+		src_hz = f2s_free_hz;
+	} else {
+		src_hz = 0;
+	}
+
+	return src_hz / divisor;
+}
+
+unsigned int cm_get_l4_noc_hz(unsigned int nocdivshift)
+{
+	unsigned int divisor2 = 1 <<
+		((readl(&clock_manager_base->main_pll.nocdiv) >>
+			nocdivshift) & CLKMGR_MAINPLL_NOCDIV_MSK);
+
+	return cm_get_noc_clk_hz() / divisor2;
+}
+
+int cm_basic_init(const void *blob)
+{
+	struct mainpll_cfg main_cfg;
+	struct perpll_cfg per_cfg;
+	struct alteragrp_cfg altrgrp_cfg;
+	int rval;
+
+	/* initialize to zero for use case of optional node */
+	memset(&main_cfg, 0, sizeof(main_cfg));
+	memset(&per_cfg, 0, sizeof(per_cfg));
+	memset(&altrgrp_cfg, 0, sizeof(altrgrp_cfg));
+
+	rval = of_get_clk_cfg(blob, &main_cfg, &per_cfg, &altrgrp_cfg);
+	if (rval)
+		return rval;
+
+	rval =  cm_full_cfg(&main_cfg, &per_cfg);
+
+	cm_l4_main_clk_hz =
+		cm_get_l4_noc_hz(CLKMGR_MAINPLL_NOCDIV_L4MAINCLK_LSB);
+
+	cm_l4_mp_clk_hz = cm_get_l4_noc_hz(CLKMGR_MAINPLL_NOCDIV_L4MPCLK_LSB);
+
+	cm_l4_sp_clk_hz = cm_get_l4_sp_clk_hz();
+
+	cm_l4_sys_free_clk_hz = cm_get_noc_clk_hz() / 4;
+
+	return rval;
+}
+
+unsigned long cm_get_mpu_clk_hz(void)
+{
+	u32 reg, clk_hz;
+	u32 clk_src, mainmpuclk_reg;
+
+	mainmpuclk_reg = readl(&clock_manager_base->main_pll.mpuclk);
+
+	clk_src = (mainmpuclk_reg >> CLKMGR_MAINPLL_MPUCLK_SRC_LSB) &
+		CLKMGR_MAINPLL_MPUCLK_SRC_MSK;
+
+	reg = readl(&clock_manager_base->altera.mpuclk);
+	/* Check MPU clock source: main, periph, osc1, intosc or f2s? */
+	switch (clk_src) {
+	case CLKMGR_MAINPLL_MPUCLK_SRC_MAIN:
+		clk_hz = cm_get_main_vco_clk_hz();
+		clk_hz /= (reg & CLKMGR_MAINPLL_MPUCLK_CNT_MSK) + 1;
+		break;
+	case CLKMGR_MAINPLL_MPUCLK_SRC_PERI:
+		clk_hz = cm_get_per_vco_clk_hz();
+		clk_hz /= (((reg >> CLKMGR_MAINPLL_MPUCLK_PERICNT_LSB) &
+			   CLKMGR_MAINPLL_MPUCLK_CNT_MSK) + 1);
+		break;
+	case CLKMGR_MAINPLL_MPUCLK_SRC_OSC1:
+		clk_hz = eosc1_hz;
+		break;
+	case CLKMGR_MAINPLL_MPUCLK_SRC_INTOSC:
+		clk_hz = cb_intosc_hz;
+		break;
+	case CLKMGR_MAINPLL_MPUCLK_SRC_FPGA:
+		clk_hz = f2s_free_hz;
+		break;
+	default:
+		printf("cm_get_mpu_clk_hz invalid clk_src %d\n", clk_src);
+		return 0;
+	}
+
+	clk_hz /= (mainmpuclk_reg & CLKMGR_MAINPLL_MPUCLK_CNT_MSK) + 1;
+
+	return clk_hz;
+}
+
+unsigned int cm_get_per_vco_clk_hz(void)
+{
+	u32 src_hz = 0;
+	u32 clk_src = 0;
+	u32 numer = 0;
+	u32 denom = 0;
+	u32 vco = 0;
+
+	clk_src = readl(&clock_manager_base->per_pll.vco0);
+
+	clk_src = (clk_src >> CLKMGR_PERPLL_VCO0_PSRC_LSB) &
+		CLKMGR_PERPLL_VCO0_PSRC_MSK;
+
+	if (clk_src == CLKMGR_PERPLL_VCO0_PSRC_EOSC) {
+		src_hz = eosc1_hz;
+	} else if (clk_src == CLKMGR_PERPLL_VCO0_PSRC_E_INTOSC) {
+		src_hz = cb_intosc_hz;
+	} else if (clk_src == CLKMGR_PERPLL_VCO0_PSRC_F2S) {
+		src_hz = f2s_free_hz;
+	} else if (clk_src == CLKMGR_PERPLL_VCO0_PSRC_MAIN) {
+		src_hz = cm_get_main_vco_clk_hz();
+		src_hz /= (readl(&clock_manager_base->main_pll.cntr15clk) &
+			CLKMGR_MAINPLL_CNTRCLK_MSK) + 1;
+	} else {
+		printf("cm_get_per_vco_clk_hz invalid clk_src %d\n", clk_src);
+		return 0;
+	}
+
+	vco = readl(&clock_manager_base->per_pll.vco1);
+
+	numer = vco & CLKMGR_PERPLL_VCO1_NUMER_MSK;
+
+	denom = (vco >> CLKMGR_PERPLL_VCO1_DENOM_LSB) &
+			CLKMGR_PERPLL_VCO1_DENOM_MSK;
+
+	vco = src_hz;
+	vco /= 1 + denom;
+	vco *= 1 + numer;
+
+	return vco;
+}
+
+unsigned int cm_get_main_vco_clk_hz(void)
+{
+	u32 src_hz, numer, denom, vco;
+
+	u32 clk_src = readl(&clock_manager_base->main_pll.vco0);
+
+	clk_src = (clk_src >> CLKMGR_MAINPLL_VCO0_PSRC_LSB) &
+		CLKMGR_MAINPLL_VCO0_PSRC_MSK;
+
+	if (clk_src == CLKMGR_MAINPLL_VCO0_PSRC_EOSC) {
+		src_hz = eosc1_hz;
+	} else if (clk_src == CLKMGR_MAINPLL_VCO0_PSRC_E_INTOSC) {
+		src_hz = cb_intosc_hz;
+	} else if (clk_src == CLKMGR_MAINPLL_VCO0_PSRC_F2S) {
+		src_hz = f2s_free_hz;
+	} else {
+		printf("cm_get_main_vco_clk_hz invalid clk_src %d\n", clk_src);
+		return 0;
+	}
+
+	vco = readl(&clock_manager_base->main_pll.vco1);
+
+	numer = vco & CLKMGR_MAINPLL_VCO1_NUMER_MSK;
+
+	denom = (vco >> CLKMGR_MAINPLL_VCO1_DENOM_LSB) &
+			CLKMGR_MAINPLL_VCO1_DENOM_MSK;
+
+	vco = src_hz;
+	vco /= 1 + denom;
+	vco *= 1 + numer;
+
+	return vco;
+}
+
+unsigned int cm_get_l4_sp_clk_hz(void)
+{
+	return cm_get_l4_noc_hz(CLKMGR_MAINPLL_NOCDIV_L4SPCLK_LSB);
+}
+
+unsigned int cm_get_mmc_controller_clk_hz(void)
+{
+	u32 clk_hz = 0;
+	u32 clk_input = 0;
+
+	clk_input = readl(&clock_manager_base->per_pll.cntr6clk);
+	clk_input = (clk_input >> CLKMGR_PERPLL_CNTR6CLK_SRC_LSB) &
+		CLKMGR_PERPLLGRP_SRC_MSK;
+
+	switch (clk_input) {
+	case CLKMGR_PERPLLGRP_SRC_MAIN:
+		clk_hz = cm_get_main_vco_clk_hz();
+		clk_hz /= 1 + (readl(&clock_manager_base->main_pll.cntr6clk) &
+			CLKMGR_MAINPLL_CNTRCLK_MSK);
+		break;
+
+	case CLKMGR_PERPLLGRP_SRC_PERI:
+		clk_hz = cm_get_per_vco_clk_hz();
+		clk_hz /= 1 + (readl(&clock_manager_base->per_pll.cntr6clk) &
+			CLKMGR_PERPLL_CNTRCLK_MSK);
+		break;
+
+	case CLKMGR_PERPLLGRP_SRC_OSC1:
+		clk_hz = eosc1_hz;
+		break;
+
+	case CLKMGR_PERPLLGRP_SRC_INTOSC:
+		clk_hz = cb_intosc_hz;
+		break;
+
+	case CLKMGR_PERPLLGRP_SRC_FPGA:
+		clk_hz = f2s_free_hz;
+		break;
+	}
+
+	return clk_hz / 4;
+}
+
+unsigned int cm_get_spi_controller_clk_hz(void)
+{
+	return cm_get_l4_noc_hz(CLKMGR_MAINPLL_NOCDIV_L4MPCLK_LSB);
+}
+
+unsigned int cm_get_qspi_controller_clk_hz(void)
+{
+	return  cm_get_l4_noc_hz(CLKMGR_MAINPLL_NOCDIV_L4MAINCLK_LSB);
+}
+
+void cm_print_clock_quick_summary(void)
+{
+	printf("MPU       %10ld kHz\n", cm_get_mpu_clk_hz() / 1000);
+	printf("MMC         %8d kHz\n", cm_get_mmc_controller_clk_hz() / 1000);
+	printf("QSPI        %8d kHz\n", cm_get_qspi_controller_clk_hz() / 1000);
+	printf("SPI         %8d kHz\n", cm_get_spi_controller_clk_hz() / 1000);
+	printf("EOSC1       %8d kHz\n", eosc1_hz / 1000);
+	printf("cb_intosc   %8d kHz\n", cb_intosc_hz / 1000);
+	printf("f2s_free    %8d kHz\n", f2s_free_hz / 1000);
+	printf("Main VCO    %8d kHz\n", cm_get_main_vco_clk_hz() / 1000);
+	printf("NOC         %8d kHz\n", cm_get_noc_clk_hz() / 1000);
+	printf("L4 Main	    %8d kHz\n",
+	       cm_get_l4_noc_hz(CLKMGR_MAINPLL_NOCDIV_L4MAINCLK_LSB) / 1000);
+	printf("L4 MP       %8d kHz\n",
+	       cm_get_l4_noc_hz(CLKMGR_MAINPLL_NOCDIV_L4MPCLK_LSB) / 1000);
+	printf("L4 SP       %8d kHz\n", cm_get_l4_sp_clk_hz() / 1000);
+	printf("L4 sys free %8d kHz\n", cm_l4_sys_free_clk_hz / 1000);
+}

arch/arm/mach-socfpga/include/mach/clock_manager.h

@@ -15,5 +15,8 @@ void cm_print_clock_quick_summary(void);
 
 #if defined(CONFIG_TARGET_SOCFPGA_GEN5)
 #include <asm/arch/clock_manager_gen5.h>
+#elif defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
+#include <asm/arch/clock_manager_arria10.h>
 #endif
+
 #endif /* _CLOCK_MANAGER_H_ */

arch/arm/mach-socfpga/include/mach/clock_manager_arria10.h

@@ -0,0 +1,224 @@
+/*
+ * Copyright (C) 2016-2017 Intel Corporation
+ *
+ * SPDX-License-Identifier:	GPL-2.0
+ */
+
+#ifndef CLOCK_MANAGER_ARRIA10
+#define CLOCK_MANAGER_ARRIA10
+
+#ifndef __ASSEMBLER__
+
+struct socfpga_clock_manager_main_pll {
+	u32  vco0;
+	u32  vco1;
+	u32  en;
+	u32  ens;
+	u32  enr;
+	u32  bypass;
+	u32  bypasss;
+	u32  bypassr;
+	u32  mpuclk;
+	u32  nocclk;
+	u32  cntr2clk;
+	u32  cntr3clk;
+	u32  cntr4clk;
+	u32  cntr5clk;
+	u32  cntr6clk;
+	u32  cntr7clk;
+	u32  cntr8clk;
+	u32  cntr9clk;
+	u32  pad_0x48_0x5b[5];
+	u32  cntr15clk;
+	u32  outrst;
+	u32  outrststat;
+	u32  nocdiv;
+	u32  pad_0x6c_0x80[5];
+};
+
+struct socfpga_clock_manager_per_pll {
+	u32  vco0;
+	u32  vco1;
+	u32  en;
+	u32  ens;
+	u32  enr;
+	u32  bypass;
+	u32  bypasss;
+	u32  bypassr;
+	u32  pad_0x20_0x27[2];
+	u32  cntr2clk;
+	u32  cntr3clk;
+	u32  cntr4clk;
+	u32  cntr5clk;
+	u32  cntr6clk;
+	u32  cntr7clk;
+	u32  cntr8clk;
+	u32  cntr9clk;
+	u32  pad_0x48_0x5f[6];
+	u32  outrst;
+	u32  outrststat;
+	u32  emacctl;
+	u32  gpiodiv;
+	u32  pad_0x70_0x80[4];
+};
+
+struct socfpga_clock_manager_altera {
+	u32	mpuclk;
+	u32	nocclk;
+	u32	mainmisc0;
+	u32	mainmisc1;
+	u32	perimisc0;
+	u32	perimisc1;
+};
+
+struct socfpga_clock_manager {
+	/* clkmgr */
+	u32  ctrl;
+	u32  intr;
+	u32  intrs;
+	u32  intrr;
+	u32  intren;
+	u32  intrens;
+	u32  intrenr;
+	u32  stat;
+	u32  testioctrl;
+	u32  _pad_0x24_0x40[7];
+	/* mainpllgrp */
+	struct socfpga_clock_manager_main_pll main_pll;
+	/* perpllgrp */
+	struct socfpga_clock_manager_per_pll per_pll;
+	struct socfpga_clock_manager_altera altera;
+};
+
+void cm_use_intosc(void);
+unsigned int cm_get_noc_clk_hz(void);
+unsigned int cm_get_l4_noc_hz(unsigned int nocdivshift);
+int cm_basic_init(const void *blob);
+
+unsigned int cm_get_l4_sp_clk_hz(void);
+unsigned int cm_get_main_vco_clk_hz(void);
+unsigned int cm_get_per_vco_clk_hz(void);
+unsigned long cm_get_mpu_clk_hz(void);
+
+unsigned int cm_get_qspi_controller_clk_hz(void);
+unsigned int cm_get_mmc_controller_clk_hz(void);
+unsigned int cm_get_spi_controller_clk_hz(void);
+
+#endif /* __ASSEMBLER__ */
+
+#define CLKMGR_ALTERAGRP_MPU_CLK_OFFSET			0x140
+#define CLKMGR_MAINPLL_NOC_CLK_OFFSET			0x144
+#define LOCKED_MASK	(CLKMGR_CLKMGR_STAT_MAINPLLLOCKED_SET_MSK  | \
+			 CLKMGR_CLKMGR_STAT_PERPLLLOCKED_SET_MSK)
+
+/* value */
+#define CLKMGR_MAINPLL_BYPASS_RESET			0x0000003f
+#define CLKMGR_PERPLL_BYPASS_RESET			0x000000ff
+#define CLKMGR_MAINPLL_VCO0_RESET			0x00010053
+#define CLKMGR_MAINPLL_VCO1_RESET			0x00010001
+#define CLKMGR_PERPLL_VCO0_RESET			0x00010053
+#define CLKMGR_PERPLL_VCO1_RESET			0x00010001
+#define CLKMGR_MAINPLL_VCO0_PSRC_EOSC			0x0
+#define CLKMGR_MAINPLL_VCO0_PSRC_E_INTOSC		0x1
+#define CLKMGR_MAINPLL_VCO0_PSRC_F2S			0x2
+#define CLKMGR_PERPLL_VCO0_PSRC_EOSC			0x0
+#define CLKMGR_PERPLL_VCO0_PSRC_E_INTOSC		0x1
+#define CLKMGR_PERPLL_VCO0_PSRC_F2S			0x2
+#define CLKMGR_PERPLL_VCO0_PSRC_MAIN			0x3
+
+/* mask */
+#define CLKMGR_MAINPLL_EN_S2FUSER0CLKEN_SET_MSK		BIT(6)
+#define CLKMGR_MAINPLL_EN_HMCPLLREFCLKEN_SET_MSK	BIT(7)
+#define CLKMGR_CLKMGR_STAT_MAINPLLLOCKED_SET_MSK	BIT(8)
+#define CLKMGR_CLKMGR_STAT_PERPLLLOCKED_SET_MSK		BIT(9)
+#define CLKMGR_CLKMGR_STAT_BOOTCLKSRC_SET_MSK		BIT(17)
+#define CLKMGR_MAINPLL_VCO0_BGPWRDN_SET_MSK		BIT(0)
+#define CLKMGR_MAINPLL_VCO0_PWRDN_SET_MSK		BIT(1)
+#define CLKMGR_MAINPLL_VCO0_EN_SET_MSK			BIT(2)
+#define CLKMGR_MAINPLL_VCO0_OUTRSTALL_SET_MSK		BIT(3)
+#define CLKMGR_MAINPLL_VCO0_REGEXTSEL_SET_MSK		BIT(4)
+#define CLKMGR_PERPLL_VCO0_BGPWRDN_SET_MSK		BIT(0)
+#define CLKMGR_PERPLL_VCO0_PWRDN_SET_MSK		BIT(1)
+#define CLKMGR_PERPLL_VCO0_EN_SET_MSK			BIT(2)
+#define CLKMGR_PERPLL_VCO0_OUTRSTALL_SET_MSK		BIT(3)
+#define CLKMGR_PERPLL_VCO0_REGEXTSEL_SET_MSK		BIT(4)
+#define CLKMGR_CLKMGR_INTR_MAINPLLACHIEVED_SET_MSK	BIT(0)
+#define CLKMGR_CLKMGR_INTR_PERPLLACHIEVED_SET_MSK	BIT(1)
+#define CLKMGR_CLKMGR_INTR_MAINPLLLOST_SET_MSK		BIT(2)
+#define CLKMGR_CLKMGR_INTR_PERPLLLOST_SET_MSK		BIT(3)
+#define CLKMGR_CLKMGR_INTR_MAINPLLRFSLIP_SET_MSK	BIT(8)
+#define CLKMGR_CLKMGR_INTR_PERPLLRFSLIP_SET_MSK		BIT(9)
+#define CLKMGR_CLKMGR_INTR_MAINPLLFBSLIP_SET_MSK	BIT(10)
+#define CLKMGR_CLKMGR_INTR_PERPLLFBSLIP_SET_MSK		BIT(11)
+#define CLKMGR_CLKMGR_CTL_BOOTMOD_SET_MSK		BIT(0)
+#define CLKMGR_CLKMGR_CTL_BOOTCLK_INTOSC_SET_MSK	0x00000300
+#define CLKMGR_PERPLL_EN_RESET				0x00000f7f
+#define CLKMGR_PERPLLGRP_EN_SDMMCCLK_MASK		BIT(5)
+#define CLKMGR_MAINPLL_VCO0_PSRC_MSK			0x00000003
+#define CLKMGR_MAINPLL_VCO1_NUMER_MSK			0x00001fff
+#define CLKMGR_MAINPLL_VCO1_DENOM_MSK			0x0000003f
+#define CLKMGR_MAINPLL_CNTRCLK_MSK			0x000003ff
+#define CLKMGR_PERPLL_VCO0_PSRC_MSK			0x00000003
+#define CLKMGR_PERPLL_VCO1_NUMER_MSK			0x00001fff
+#define CLKMGR_PERPLL_VCO1_DENOM_MSK			0x0000003f
+#define CLKMGR_PERPLL_CNTRCLK_MSK			0x000003ff
+#define CLKMGR_MAINPLL_MPUCLK_SRC_MSK			0x00000007
+#define CLKMGR_MAINPLL_MPUCLK_CNT_MSK			0x000003ff
+#define CLKMGR_MAINPLL_MPUCLK_SRC_MAIN			0
+#define CLKMGR_MAINPLL_MPUCLK_SRC_PERI			1
+#define CLKMGR_MAINPLL_MPUCLK_SRC_OSC1			2
+#define CLKMGR_MAINPLL_MPUCLK_SRC_INTOSC		3
+#define CLKMGR_MAINPLL_MPUCLK_SRC_FPGA			4
+#define CLKMGR_MAINPLL_NOCDIV_MSK			0x00000003
+#define CLKMGR_MAINPLL_NOCCLK_CNT_MSK			0x000003ff
+#define CLKMGR_MAINPLL_NOCCLK_SRC_MSK			0x00000007
+#define CLKMGR_MAINPLL_NOCCLK_SRC_MAIN			0
+#define CLKMGR_MAINPLL_NOCCLK_SRC_PERI			1
+#define CLKMGR_MAINPLL_NOCCLK_SRC_OSC1			2
+#define CLKMGR_MAINPLL_NOCCLK_SRC_INTOSC		3
+#define CLKMGR_MAINPLL_NOCCLK_SRC_FPGA			4
+
+#define CLKMGR_PERPLLGRP_SRC_MSK			0x00000007
+#define CLKMGR_PERPLLGRP_SRC_MAIN			0
+#define CLKMGR_PERPLLGRP_SRC_PERI			1
+#define CLKMGR_PERPLLGRP_SRC_OSC1			2
+#define CLKMGR_PERPLLGRP_SRC_INTOSC			3
+#define CLKMGR_PERPLLGRP_SRC_FPGA			4
+
+/* bit shifting macro */
+#define CLKMGR_MAINPLL_VCO0_PSRC_LSB		8
+#define CLKMGR_PERPLL_VCO0_PSRC_LSB		8
+#define CLKMGR_MAINPLL_VCO1_DENOM_LSB		16
+#define CLKMGR_PERPLL_VCO1_DENOM_LSB		16
+#define CLKMGR_MAINPLL_NOCCLK_PERICNT_LSB	16
+#define CLKMGR_MAINPLL_NOCCLK_SRC_LSB		16
+#define CLKMGR_MAINPLL_NOCDIV_L4MAINCLK_LSB	0
+#define CLKMGR_MAINPLL_NOCDIV_L4MPCLK_LSB	8
+#define CLKMGR_MAINPLL_NOCDIV_L4SPCLK_LSB	16
+#define CLKMGR_MAINPLL_NOCDIV_CSATCLK_LSB	24
+#define CLKMGR_MAINPLL_NOCDIV_CSTRACECLK_LSB	26
+#define CLKMGR_MAINPLL_NOCDIV_CSPDBGCLK_LSB	28
+#define CLKMGR_MAINPLL_MPUCLK_SRC_LSB		16
+#define CLKMGR_MAINPLL_MPUCLK_PERICNT_LSB	16
+#define CLKMGR_MAINPLL_NOCCLK_SRC_LSB		16
+#define CLKMGR_MAINPLL_CNTR7CLK_SRC_LSB		16
+#define CLKMGR_MAINPLL_CNTR9CLK_SRC_LSB		16
+#define CLKMGR_PERPLL_CNTR2CLK_SRC_LSB		16
+#define CLKMGR_PERPLL_CNTR3CLK_SRC_LSB		16
+#define CLKMGR_PERPLL_CNTR4CLK_SRC_LSB		16
+#define CLKMGR_PERPLL_CNTR5CLK_SRC_LSB		16
+#define CLKMGR_PERPLL_CNTR6CLK_SRC_LSB		16
+#define CLKMGR_PERPLL_CNTR8CLK_SRC_LSB		16
+#define CLKMGR_PERPLL_EMACCTL_EMAC0SEL_LSB	26
+#define CLKMGR_PERPLL_EMACCTL_EMAC1SEL_LSB	27
+#define CLKMGR_PERPLL_EMACCTL_EMAC2SEL_LSB	28
+
+/* PLL ramping work around */
+#define CLKMGR_PLL_RAMP_MPUCLK_THRESHOLD_HZ	900000000
+#define CLKMGR_PLL_RAMP_NOCCLK_THRESHOLD_HZ	300000000
+#define CLKMGR_PLL_RAMP_MPUCLK_INCREMENT_HZ	100000000
+#define CLKMGR_PLL_RAMP_NOCCLK_INCREMENT_HZ	33000000
+
+#define CLKMGR_STAT_BUSY			BIT(0)
+
+#endif /* CLOCK_MANAGER_ARRIA10 */