[PATCHv1 4/4] clk: socfpga: Add a clock driver for the SoCFPGA Stratix10 platform

Dinh Nguyen dinguyen at kernel.org
Fri Jul 7 12:03:19 PDT 2017


Add a clock driver the SoCFPGA Stratix10 platform. The Stratix10 SOC is an
ARM64 base and the clock tree is very similar to the SOCFPGA ARM32 platforms.

Signed-off-by: Dinh Nguyen <dinguyen at kernel.org>
---
 drivers/clk/Makefile                 |   1 +
 drivers/clk/socfpga/Makefile         |   4 +
 drivers/clk/socfpga/clk-gate-s10.c   | 214 +++++++++++++++++++++++++++++++++++
 drivers/clk/socfpga/clk-periph-s10.c | 165 +++++++++++++++++++++++++++
 drivers/clk/socfpga/clk-pll-s10.c    | 146 ++++++++++++++++++++++++
 drivers/clk/socfpga/clk.c            |   9 ++
 drivers/clk/socfpga/clk.h            |   8 ++
 7 files changed, 547 insertions(+)
 create mode 100644 drivers/clk/socfpga/clk-gate-s10.c
 create mode 100644 drivers/clk/socfpga/clk-periph-s10.c
 create mode 100644 drivers/clk/socfpga/clk-pll-s10.c

diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index c19983a..1ce3b10 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -80,6 +80,7 @@ obj-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip/
 obj-$(CONFIG_COMMON_CLK_SAMSUNG)	+= samsung/
 obj-$(CONFIG_ARCH_SIRF)			+= sirf/
 obj-$(CONFIG_ARCH_SOCFPGA)		+= socfpga/
+obj-$(CONFIG_ARCH_STRATIX10)		+= socfpga/
 obj-$(CONFIG_PLAT_SPEAR)		+= spear/
 obj-$(CONFIG_ARCH_STI)			+= st/
 obj-$(CONFIG_ARCH_SUNXI)		+= sunxi/
diff --git a/drivers/clk/socfpga/Makefile b/drivers/clk/socfpga/Makefile
index d8bb239..602e2b9 100644
--- a/drivers/clk/socfpga/Makefile
+++ b/drivers/clk/socfpga/Makefile
@@ -1,5 +1,9 @@
 obj-y += clk.o
+ifeq ($(CONFIG_ARCH_SOCFPGA),y)
 obj-y += clk-gate.o
 obj-y += clk-pll.o
 obj-y += clk-periph.o
 obj-y += clk-pll-a10.o clk-periph-a10.o clk-gate-a10.o
+else
+obj-y += clk-pll-s10.o clk-periph-s10.o clk-gate-s10.o
+endif
diff --git a/drivers/clk/socfpga/clk-gate-s10.c b/drivers/clk/socfpga/clk-gate-s10.c
new file mode 100644
index 0000000..172317f
--- /dev/null
+++ b/drivers/clk/socfpga/clk-gate-s10.c
@@ -0,0 +1,214 @@
+/*
+ * Copyright (C) 2017, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/slab.h>
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/mfd/syscon.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+
+#include "clk.h"
+
+#define streq(a, b) (strcmp((a), (b)) == 0)
+
+#define SOCFPGA_CS_PDBG_CLK	"cs_pdbg_clk"
+
+#define to_socfpga_gate_clk(p) container_of(p, struct socfpga_gate_clk, hw.hw)
+
+/* SDMMC Group for System Manager defines */
+#define SYSMGR_SDMMCGRP_CTRL_OFFSET	0x28
+
+static unsigned long socfpga_gate_clk_recalc_rate(struct clk_hw *hwclk,
+	unsigned long parent_rate)
+{
+	struct socfpga_gate_clk *socfpgaclk = to_socfpga_gate_clk(hwclk);
+	u32 div = 1, val;
+
+	if (socfpgaclk->fixed_div)
+		div = socfpgaclk->fixed_div;
+	else if (socfpgaclk->div_reg) {
+		val = readl(socfpgaclk->div_reg) >> socfpgaclk->shift;
+		val &= GENMASK(socfpgaclk->width - 1, 0);
+		div = (1 << val);
+		if (streq(hwclk->init->name, SOCFPGA_CS_PDBG_CLK))
+			div = div ? 4 : 1;
+	}
+	return parent_rate / div;
+}
+
+static int socfpga_clk_prepare(struct clk_hw *hwclk)
+{
+	struct socfpga_gate_clk *socfpgaclk = to_socfpga_gate_clk(hwclk);
+	int i;
+	u32 hs_timing;
+	u32 clk_phase[2];
+
+	if (socfpgaclk->clk_phase[0] || socfpgaclk->clk_phase[1]) {
+		for (i = 0; i < ARRAY_SIZE(clk_phase); i++) {
+			switch (socfpgaclk->clk_phase[i]) {
+			case 0:
+				clk_phase[i] = 0;
+				break;
+			case 45:
+				clk_phase[i] = 1;
+				break;
+			case 90:
+				clk_phase[i] = 2;
+				break;
+			case 135:
+				clk_phase[i] = 3;
+				break;
+			case 180:
+				clk_phase[i] = 4;
+				break;
+			case 225:
+				clk_phase[i] = 5;
+				break;
+			case 270:
+				clk_phase[i] = 6;
+				break;
+			case 315:
+				clk_phase[i] = 7;
+				break;
+			default:
+				clk_phase[i] = 0;
+				break;
+			}
+		}
+
+		hs_timing = SYSMGR_SDMMC_CTRL_SET(clk_phase[0], clk_phase[1]);
+		if (!IS_ERR(socfpgaclk->sys_mgr_base_addr))
+			regmap_write(socfpgaclk->sys_mgr_base_addr,
+				     SYSMGR_SDMMCGRP_CTRL_OFFSET, hs_timing);
+		else
+			pr_err("%s: cannot set clk_phase because sys_mgr_base_addr is not available!\n",
+					__func__);
+	}
+	return 0;
+}
+
+static u8 socfpga_gate_get_parent(struct clk_hw *hwclk)
+{
+	struct socfpga_gate_clk *socfpgaclk = to_socfpga_gate_clk(hwclk);
+	u32 mask;
+	u8 parent = 0;
+
+	if (socfpgaclk->bypass_reg) {
+		mask = (0x1 << socfpgaclk->bypass_shift);
+		parent = ((readl(socfpgaclk->bypass_reg) & mask) >>
+			  socfpgaclk->bypass_shift);
+	}
+	return parent;
+}
+
+static struct clk_ops gateclk_ops = {
+	.prepare = socfpga_clk_prepare,
+	.recalc_rate = socfpga_gate_clk_recalc_rate,
+	.get_parent = socfpga_gate_get_parent,
+};
+
+static void __init __socfpga_gate_init(struct device_node *node,
+	const struct clk_ops *ops)
+{
+	u32 clk_gate[2];
+	u32 div_reg[3];
+	u32 bypass_reg[2];
+	u32 clk_phase[2];
+	u32 fixed_div;
+	struct clk *clk;
+	struct socfpga_gate_clk *socfpga_clk;
+	const char *clk_name = node->name;
+	const char *parent_name[SOCFPGA_MAX_PARENTS];
+	struct clk_init_data init;
+	int rc;
+
+	socfpga_clk = kzalloc(sizeof(*socfpga_clk), GFP_KERNEL);
+	if (WARN_ON(!socfpga_clk))
+		return;
+
+	rc = of_property_read_u32_array(node, "clk-gate", clk_gate, 2);
+	if (rc)
+		clk_gate[0] = 0;
+
+	if (clk_gate[0]) {
+		socfpga_clk->hw.reg = clk_mgr_s10_base_addr + clk_gate[0];
+		socfpga_clk->hw.bit_idx = clk_gate[1];
+
+		gateclk_ops.enable = clk_gate_ops.enable;
+		gateclk_ops.disable = clk_gate_ops.disable;
+	}
+
+	rc = of_property_read_u32(node, "fixed-divider", &fixed_div);
+	if (rc)
+		socfpga_clk->fixed_div = 0;
+	else
+		socfpga_clk->fixed_div = fixed_div;
+
+	rc = of_property_read_u32_array(node, "div-reg", div_reg, 3);
+	if (!rc) {
+		socfpga_clk->div_reg = clk_mgr_s10_base_addr + div_reg[0];
+		socfpga_clk->shift = div_reg[1];
+		socfpga_clk->width = div_reg[2];
+	} else {
+		socfpga_clk->div_reg = NULL;
+	}
+
+	rc = of_property_read_u32_array(node, "bypass-reg", bypass_reg, 2);
+	if (!rc) {
+		socfpga_clk->bypass_reg = clk_mgr_s10_base_addr + bypass_reg[0];
+		socfpga_clk->bypass_shift = bypass_reg[1];
+	} else {
+		socfpga_clk->bypass_reg = NULL;
+	}
+
+	rc = of_property_read_u32_array(node, "clk-phase", clk_phase, 2);
+	if (!rc) {
+		socfpga_clk->clk_phase[0] = clk_phase[0];
+		socfpga_clk->clk_phase[1] = clk_phase[1];
+
+		socfpga_clk->sys_mgr_base_addr =
+			syscon_regmap_lookup_by_compatible("altr,sys-mgr");
+		if (IS_ERR(socfpga_clk->sys_mgr_base_addr)) {
+			pr_err("%s: failed to find altr,sys-mgr regmap!\n",
+					__func__);
+			return;
+		}
+	}
+
+	of_property_read_string(node, "clock-output-names", &clk_name);
+
+	init.name = clk_name;
+	init.ops = ops;
+	init.flags = 0;
+
+	init.num_parents = of_clk_parent_fill(node, parent_name, SOCFPGA_MAX_PARENTS);
+	init.parent_names = parent_name;
+	socfpga_clk->hw.hw.init = &init;
+
+	clk = clk_register(NULL, &socfpga_clk->hw.hw);
+	if (WARN_ON(IS_ERR(clk))) {
+		kfree(socfpga_clk);
+		return;
+	}
+	rc = of_clk_add_provider(node, of_clk_src_simple_get, clk);
+	if (WARN_ON(rc))
+		return;
+}
+
+void __init socfpga_s10_gate_init(struct device_node *node)
+{
+	__socfpga_gate_init(node, &gateclk_ops);
+}
diff --git a/drivers/clk/socfpga/clk-periph-s10.c b/drivers/clk/socfpga/clk-periph-s10.c
new file mode 100644
index 0000000..2180d36
--- /dev/null
+++ b/drivers/clk/socfpga/clk-periph-s10.c
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2017, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/slab.h>
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/of.h>
+
+#include "clk.h"
+
+#define CLK_MGR_FREE_SHIFT		16
+#define CLK_MGR_FREE_MASK		0x7
+
+#define SWCTRLBTCLKSEL_MASK		0x200
+#define SWCTRLBTCLKSEL_SHIFT		9
+#define SWCTRLBTCLKEN_MASK		0x100
+#define SWCTRLBTCLKSEN_SHIFT		8
+
+
+#define SOCFPGA_BOOT_CLK	"boot_clk"
+
+#define to_socfpga_periph_clk(p) container_of(p, struct socfpga_periph_clk, hw.hw)
+
+static unsigned long clk_periclk_recalc_rate(struct clk_hw *hwclk,
+					     unsigned long parent_rate)
+{
+	struct socfpga_periph_clk *socfpgaclk = to_socfpga_periph_clk(hwclk);
+	u32 div = 1;
+	u32 val;
+
+	if (socfpgaclk->fixed_div) {
+		div = socfpgaclk->fixed_div;
+	} else if (socfpgaclk->div_reg) {
+		val = readl(socfpgaclk->div_reg) >> socfpgaclk->shift;
+		val &= GENMASK(socfpgaclk->width - 1, 0);
+		parent_rate /= val;
+	} else {
+		if (streq(hwclk->init->name, SOCFPGA_BOOT_CLK)) {
+			if ((readl(socfpgaclk->hw.reg) & SWCTRLBTCLKEN_MASK) >>
+			     SWCTRLBTCLKSEN_SHIFT) {
+				div = ((readl(socfpgaclk->hw.reg) &
+					SWCTRLBTCLKSEL_MASK) >>
+					SWCTRLBTCLKSEL_SHIFT);
+				div += 1;
+			}
+		} else if (!socfpgaclk->bypass_reg)
+			div = ((readl(socfpgaclk->hw.reg) & 0x7ff) + 1);
+	}
+
+	return parent_rate / div;
+}
+
+static u8 clk_periclk_get_parent(struct clk_hw *hwclk)
+{
+	struct socfpga_periph_clk *socfpgaclk = to_socfpga_periph_clk(hwclk);
+	u32 clk_src, mask;
+	u8 parent;
+
+	if (socfpgaclk->bypass_reg) {
+		mask = (0x1 << socfpgaclk->bypass_shift);
+		parent = ((readl(socfpgaclk->bypass_reg) & mask) >>
+			   socfpgaclk->bypass_shift);
+	} else {
+		clk_src = readl(socfpgaclk->hw.reg);
+		parent = (clk_src >> CLK_MGR_FREE_SHIFT) &
+			CLK_MGR_FREE_MASK;
+	}
+	return parent;
+}
+
+static const struct clk_ops periclk_ops = {
+	.recalc_rate = clk_periclk_recalc_rate,
+	.get_parent = clk_periclk_get_parent,
+};
+
+static __init void __socfpga_periph_init(struct device_node *node,
+	const struct clk_ops *ops)
+{
+	u32 reg;
+	struct clk *clk;
+	struct socfpga_periph_clk *periph_clk;
+	const char *clk_name = node->name;
+	const char *parent_name[SOCFPGA_MAX_PARENTS];
+	struct clk_init_data init;
+	int rc;
+	u32 fixed_div;
+	u32 div_reg[3];
+	u32 bypass_reg[2];
+
+	of_property_read_u32(node, "reg", &reg);
+
+	periph_clk = kzalloc(sizeof(*periph_clk), GFP_KERNEL);
+	if (WARN_ON(!periph_clk))
+		return;
+
+	periph_clk->hw.reg = clk_mgr_s10_base_addr + reg;
+
+	rc = of_property_read_u32_array(node, "div-reg", div_reg, 3);
+	if (!rc) {
+		periph_clk->div_reg = clk_mgr_s10_base_addr + div_reg[0];
+		periph_clk->shift = div_reg[1];
+		periph_clk->width = div_reg[2];
+	} else {
+		periph_clk->div_reg = NULL;
+	}
+
+	rc = of_property_read_u32_array(node, "bypass-reg", bypass_reg, 2);
+	if (!rc) {
+		periph_clk->bypass_reg = clk_mgr_s10_base_addr + bypass_reg[0];
+		periph_clk->bypass_shift = bypass_reg[1];
+	} else {
+		periph_clk->bypass_reg = NULL;
+	}
+
+	rc = of_property_read_u32(node, "fixed-divider", &fixed_div);
+	if (rc)
+		periph_clk->fixed_div = 0;
+	else
+		periph_clk->fixed_div = fixed_div;
+
+	of_property_read_string(node, "clock-output-names", &clk_name);
+
+	init.name = clk_name;
+	init.ops = ops;
+	init.flags = 0;
+
+	init.num_parents = of_clk_parent_fill(node, parent_name, SOCFPGA_MAX_PARENTS);
+	init.parent_names = parent_name;
+
+	periph_clk->hw.hw.init = &init;
+
+	clk = clk_register(NULL, &periph_clk->hw.hw);
+	if (WARN_ON(IS_ERR(clk))) {
+		kfree(periph_clk);
+		return;
+	}
+	rc = of_clk_add_provider(node, of_clk_src_simple_get, clk);
+	if (rc < 0) {
+		pr_err("Could not register clock provider for node:%s\n",
+		       clk_name);
+		goto err_clk;
+	}
+
+	return;
+
+err_clk:
+	clk_unregister(clk);
+}
+
+void __init socfpga_s10_periph_init(struct device_node *node)
+{
+	__socfpga_periph_init(node, &periclk_ops);
+}
diff --git a/drivers/clk/socfpga/clk-pll-s10.c b/drivers/clk/socfpga/clk-pll-s10.c
new file mode 100644
index 0000000..3f36ad5
--- /dev/null
+++ b/drivers/clk/socfpga/clk-pll-s10.c
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2017, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <linux/slab.h>
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#include "clk.h"
+
+/* Clock Manager offsets */
+#define CLK_MGR_PLL_CLK_SRC_SHIFT	16
+#define CLK_MGR_PLL_CLK_SRC_MASK	0x3
+
+/* PLL Clock enable bits */
+#define SOCFPGA_PLL_POWER		0
+#define SOCFPGA_PLL_RESET_MASK		0x2
+#define SOCFPGA_PLL_REFDIV_MASK		0x00003F00
+#define SOCFPGA_PLL_REFDIV_SHIFT	8
+#define SOCFPGA_PLL_MDIV_MASK		0xFF000000
+#define SOCFPGA_PLL_MDIV_SHIFT		24
+#define SOCFGPA_MAX_PARENTS	5
+
+#define to_socfpga_clk(p) container_of(p, struct socfpga_pll, hw.hw)
+
+void __iomem *clk_mgr_s10_base_addr;
+
+static unsigned long clk_pll_recalc_rate(struct clk_hw *hwclk,
+					 unsigned long parent_rate)
+{
+	struct socfpga_pll *socfpgaclk = to_socfpga_clk(hwclk);
+	unsigned long mdiv;
+	unsigned long refdiv;
+	unsigned long reg;
+	unsigned long long vco_freq;
+
+	/* read VCO1 reg for numerator and denominator */
+	reg = readl(socfpgaclk->hw.reg);
+	refdiv = (reg & SOCFPGA_PLL_REFDIV_MASK) >> SOCFPGA_PLL_REFDIV_SHIFT;
+	vco_freq = (unsigned long long)parent_rate/refdiv;
+
+	/* Read mdiv and fdiv from the fdbck register */
+	reg = readl(socfpgaclk->hw.reg + 0x4);
+	mdiv = (reg & SOCFPGA_PLL_MDIV_MASK) >> SOCFPGA_PLL_MDIV_SHIFT;
+	vco_freq = (unsigned long long)parent_rate * (mdiv + 6);
+
+	return (unsigned long)vco_freq;
+}
+
+static u8 clk_pll_get_parent(struct clk_hw *hwclk)
+{
+	struct socfpga_pll *socfpgaclk = to_socfpga_clk(hwclk);
+	u32 pll_src;
+
+	pll_src = readl(socfpgaclk->hw.reg);
+
+	return (pll_src >> CLK_MGR_PLL_CLK_SRC_SHIFT) &
+		CLK_MGR_PLL_CLK_SRC_MASK;
+}
+
+static int clk_pll_prepare(struct clk_hw *hwclk)
+{
+	struct socfpga_pll *socfpgaclk = to_socfpga_clk(hwclk);
+	u32 reg;
+
+	/* Bring PLL out of reset */
+	reg = readl(socfpgaclk->hw.reg);
+	reg |= SOCFPGA_PLL_RESET_MASK;
+	writel(reg, socfpgaclk->hw.reg);
+
+	return 0;
+}
+
+static struct clk_ops clk_pll_ops = {
+	.recalc_rate = clk_pll_recalc_rate,
+	.get_parent = clk_pll_get_parent,
+	.prepare = clk_pll_prepare,
+};
+
+static struct clk * __init __socfpga_pll_init(struct device_node *node,
+	const struct clk_ops *ops)
+{
+	u32 reg, reg2;
+	struct clk *clk;
+	struct socfpga_pll *pll_clk;
+	const char *clk_name = node->name;
+	const char *parent_name[SOCFGPA_MAX_PARENTS];
+	struct clk_init_data init;
+	struct device_node *clkmgr_np;
+	int rc;
+	int i = 0;
+
+	of_property_read_u32(node, "reg", &reg);
+
+	pll_clk = kzalloc(sizeof(*pll_clk), GFP_KERNEL);
+	if (WARN_ON(!pll_clk))
+		return NULL;
+
+	clkmgr_np = of_find_compatible_node(NULL, NULL, "altr,clk-mgr");
+	clk_mgr_s10_base_addr = of_iomap(clkmgr_np, 0);
+	BUG_ON(!clk_mgr_s10_base_addr);
+	pll_clk->hw.reg = clk_mgr_s10_base_addr + reg;
+
+	of_property_read_string(node, "clock-output-names", &clk_name);
+
+	init.name = clk_name;
+	init.ops = ops;
+	init.flags = 0;
+
+	while (i < SOCFGPA_MAX_PARENTS && (parent_name[i] =
+			of_clk_get_parent_name(node, i)) != NULL)
+		i++;
+	init.num_parents = i;
+	init.parent_names = parent_name;
+	pll_clk->hw.hw.init = &init;
+
+	pll_clk->hw.bit_idx = SOCFPGA_PLL_POWER;
+	clk_pll_ops.enable = clk_gate_ops.enable;
+	clk_pll_ops.disable = clk_gate_ops.disable;
+
+	clk = clk_register(NULL, &pll_clk->hw.hw);
+	if (WARN_ON(IS_ERR(clk))) {
+		kfree(pll_clk);
+		return NULL;
+	}
+	rc = of_clk_add_provider(node, of_clk_src_simple_get, clk);
+	return clk;
+}
+
+void __init socfpga_s10_pll_init(struct device_node *node)
+{
+	__socfpga_pll_init(node, &clk_pll_ops);
+}
diff --git a/drivers/clk/socfpga/clk.c b/drivers/clk/socfpga/clk.c
index 7564d2e..abb374b 100644
--- a/drivers/clk/socfpga/clk.c
+++ b/drivers/clk/socfpga/clk.c
@@ -21,6 +21,7 @@
 
 #include "clk.h"
 
+#ifdef CONFIG_ARCH_SOCFPGA
 CLK_OF_DECLARE(socfpga_pll_clk, "altr,socfpga-pll-clock", socfpga_pll_init);
 CLK_OF_DECLARE(socfpga_perip_clk, "altr,socfpga-perip-clk", socfpga_periph_init);
 CLK_OF_DECLARE(socfpga_gate_clk, "altr,socfpga-gate-clk", socfpga_gate_init);
@@ -30,3 +31,11 @@ CLK_OF_DECLARE(socfpga_a10_perip_clk, "altr,socfpga-a10-perip-clk",
 	       socfpga_a10_periph_init);
 CLK_OF_DECLARE(socfpga_a10_gate_clk, "altr,socfpga-a10-gate-clk",
 	       socfpga_a10_gate_init);
+#elif CONFIG_ARCH_STRATIX10
+CLK_OF_DECLARE(socfpga_s10_pll_clk, "altr,socfpga-s10-pll-clock",
+	       socfpga_s10_pll_init);
+CLK_OF_DECLARE(socfpga_s10_perip_clk, "altr,socfpga-s10-perip-clk",
+	       socfpga_s10_periph_init);
+CLK_OF_DECLARE(socfpga_s10_gate_clk, "altr,socfpga-s10-gate-clk",
+	       socfpga_s10_gate_init);
+#endif
diff --git a/drivers/clk/socfpga/clk.h b/drivers/clk/socfpga/clk.h
index 814c724..7eeb140 100644
--- a/drivers/clk/socfpga/clk.h
+++ b/drivers/clk/socfpga/clk.h
@@ -34,6 +34,7 @@
 
 extern void __iomem *clk_mgr_base_addr;
 extern void __iomem *clk_mgr_a10_base_addr;
+extern void __iomem *clk_mgr_s10_base_addr;
 
 void __init socfpga_pll_init(struct device_node *node);
 void __init socfpga_periph_init(struct device_node *node);
@@ -41,6 +42,9 @@ void __init socfpga_gate_init(struct device_node *node);
 void socfpga_a10_pll_init(struct device_node *node);
 void socfpga_a10_periph_init(struct device_node *node);
 void socfpga_a10_gate_init(struct device_node *node);
+void socfpga_s10_pll_init(struct device_node *node);
+void socfpga_s10_periph_init(struct device_node *node);
+void socfpga_s10_gate_init(struct device_node *node);
 
 struct socfpga_pll {
 	struct clk_gate	hw;
@@ -51,9 +55,11 @@ struct socfpga_gate_clk {
 	char *parent_name;
 	u32 fixed_div;
 	void __iomem *div_reg;
+	void __iomem *bypass_reg;
 	struct regmap *sys_mgr_base_addr;
 	u32 width;	/* only valid if div_reg != 0 */
 	u32 shift;	/* only valid if div_reg != 0 */
+	u32 bypass_shift;      /* only valid if bypass_reg != 0 */
 	u32 clk_phase[2];
 };
 
@@ -62,8 +68,10 @@ struct socfpga_periph_clk {
 	char *parent_name;
 	u32 fixed_div;
 	void __iomem *div_reg;
+	void __iomem *bypass_reg;
 	u32 width;      /* only valid if div_reg != 0 */
 	u32 shift;      /* only valid if div_reg != 0 */
+	u32 bypass_shift;      /* only valid if bypass_reg != 0 */
 };
 
 #endif /* SOCFPGA_CLK_H */
-- 
2.7.4




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