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Message-Id: <dffa42d56a1785f0f2b9aef51f160c88043853c1.1602838910.git.zong.li@sifive.com>
Date: Fri, 16 Oct 2020 17:18:25 +0800
From: Zong Li <zong.li@...ive.com>
To: paul.walmsley@...ive.com, palmer@...belt.com,
aou@...s.berkeley.edu, mturquette@...libre.com, sboyd@...nel.org,
yash.shah@...ive.com, linux-kernel@...r.kernel.org,
linux-clk@...r.kernel.org, linux-riscv@...ts.infradead.org
Cc: Zong Li <zong.li@...ive.com>, Henry Styles <hes@...ive.com>,
Erik Danie <erik.danie@...ive.com>
Subject: [PATCH 3/4] clk: sifive: Add a driver for the SiFive FU740 PRCI IP block
Add driver code for the SiFive FU740 PRCI IP block. This IP block
handles reset and clock control for the SiFive FU740 device and
implements SoC-level clock tree controls and dividers.
This driver contains bug fixes and contributions from
Henry Styles <hes@...ive.com> and Erik Danie <erik.danie@...ive.com>.
Signed-off-by: Zong Li <zong.li@...ive.com>
Cc: Henry Styles <hes@...ive.com>
Cc: Erik Danie <erik.danie@...ive.com>
---
drivers/clk/sifive/Kconfig | 4 +-
drivers/clk/sifive/Makefile | 1 +
drivers/clk/sifive/fu740-prci.c | 122 ++++++++++++++++++
drivers/clk/sifive/fu740-prci.h | 21 +++
drivers/clk/sifive/sifive-prci.c | 120 +++++++++++++++++
drivers/clk/sifive/sifive-prci.h | 88 +++++++++++++
include/dt-bindings/clock/sifive-fu740-prci.h | 23 ++++
7 files changed, 377 insertions(+), 2 deletions(-)
create mode 100644 drivers/clk/sifive/fu740-prci.c
create mode 100644 drivers/clk/sifive/fu740-prci.h
create mode 100644 include/dt-bindings/clock/sifive-fu740-prci.h
diff --git a/drivers/clk/sifive/Kconfig b/drivers/clk/sifive/Kconfig
index ab48cf7e0105..1c14eb20c066 100644
--- a/drivers/clk/sifive/Kconfig
+++ b/drivers/clk/sifive/Kconfig
@@ -13,7 +13,7 @@ config CLK_SIFIVE_PRCI
select CLK_ANALOGBITS_WRPLL_CLN28HPC
help
Supports the Power Reset Clock interface (PRCI) IP block found in
- FU540 SoCs. If this kernel is meant to run on a SiFive FU540 SoC,
- enable this driver.
+ FU540/FU740 SoCs. If this kernel is meant to run on a SiFive FU540/
+ FU740 SoCs, enable this driver.
endif
diff --git a/drivers/clk/sifive/Makefile b/drivers/clk/sifive/Makefile
index fe3e2cb4c4d8..2c05798e4ba4 100644
--- a/drivers/clk/sifive/Makefile
+++ b/drivers/clk/sifive/Makefile
@@ -2,3 +2,4 @@
obj-y += sifive-prci.o
obj-$(CONFIG_CLK_SIFIVE_PRCI) += fu540-prci.o
+obj-$(CONFIG_CLK_SIFIVE_PRCI) += fu740-prci.o
diff --git a/drivers/clk/sifive/fu740-prci.c b/drivers/clk/sifive/fu740-prci.c
new file mode 100644
index 000000000000..3b87e273c3eb
--- /dev/null
+++ b/drivers/clk/sifive/fu740-prci.c
@@ -0,0 +1,122 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018-2019 SiFive, Inc.
+ * Wesley Terpstra
+ * Paul Walmsley
+ * Zong Li
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that 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.
+ */
+
+#include <dt-bindings/clock/sifive-fu740-prci.h>
+#include <linux/module.h>
+#include "sifive-prci.h"
+
+/* PRCI integration data for each WRPLL instance */
+
+static struct __prci_wrpll_data __prci_corepll_data = {
+ .cfg0_offs = PRCI_COREPLLCFG0_OFFSET,
+ .enable_bypass = sifive_prci_coreclksel_use_hfclk,
+ .disable_bypass = sifive_prci_coreclksel_use_final_corepll,
+};
+
+static struct __prci_wrpll_data __prci_ddrpll_data = {
+ .cfg0_offs = PRCI_DDRPLLCFG0_OFFSET,
+};
+
+static struct __prci_wrpll_data __prci_gemgxlpll_data = {
+ .cfg0_offs = PRCI_GEMGXLPLLCFG0_OFFSET,
+};
+
+static struct __prci_wrpll_data __prci_dvfscorepll_data = {
+ .cfg0_offs = PRCI_DVFSCOREPLLCFG0_OFFSET,
+ .enable_bypass = sifive_prci_corepllsel_use_corepll,
+ .disable_bypass = sifive_prci_corepllsel_use_dvfscorepll,
+};
+
+static struct __prci_wrpll_data __prci_hfpclkpll_data = {
+ .cfg0_offs = PRCI_HFPCLKPLLCFG0_OFFSET,
+ .enable_bypass = sifive_prci_hfpclkpllsel_use_hfclk,
+ .disable_bypass = sifive_prci_hfpclkpllsel_use_hfpclkpll,
+};
+
+static struct __prci_wrpll_data __prci_cltxpll_data = {
+ .cfg0_offs = PRCI_CLTXPLLCFG0_OFFSET,
+};
+
+/* Linux clock framework integration */
+
+static const struct clk_ops sifive_fu740_prci_wrpll_clk_ops = {
+ .set_rate = sifive_prci_wrpll_set_rate,
+ .round_rate = sifive_prci_wrpll_round_rate,
+ .recalc_rate = sifive_prci_wrpll_recalc_rate,
+};
+
+static const struct clk_ops sifive_fu740_prci_wrpll_ro_clk_ops = {
+ .recalc_rate = sifive_prci_wrpll_recalc_rate,
+};
+
+static const struct clk_ops sifive_fu740_prci_tlclksel_clk_ops = {
+ .recalc_rate = sifive_prci_tlclksel_recalc_rate,
+};
+
+static const struct clk_ops sifive_fu740_prci_hfpclkplldiv_clk_ops = {
+ .recalc_rate = sifive_prci_hfpclkplldiv_recalc_rate,
+};
+
+/* List of clock controls provided by the PRCI */
+struct __prci_clock __prci_init_clocks_fu740[] = {
+ [PRCI_CLK_COREPLL] = {
+ .name = "corepll",
+ .parent_name = "hfclk",
+ .ops = &sifive_fu740_prci_wrpll_clk_ops,
+ .pwd = &__prci_corepll_data,
+ },
+ [PRCI_CLK_DDRPLL] = {
+ .name = "ddrpll",
+ .parent_name = "hfclk",
+ .ops = &sifive_fu740_prci_wrpll_ro_clk_ops,
+ .pwd = &__prci_ddrpll_data,
+ },
+ [PRCI_CLK_GEMGXLPLL] = {
+ .name = "gemgxlpll",
+ .parent_name = "hfclk",
+ .ops = &sifive_fu740_prci_wrpll_clk_ops,
+ .pwd = &__prci_gemgxlpll_data,
+ },
+ [PRCI_CLK_DVFSCOREPLL] = {
+ .name = "dvfscorepll",
+ .parent_name = "hfclk",
+ .ops = &sifive_fu740_prci_wrpll_clk_ops,
+ .pwd = &__prci_dvfscorepll_data,
+ },
+ [PRCI_CLK_HFPCLKPLL] = {
+ .name = "hfpclkpll",
+ .parent_name = "hfclk",
+ .ops = &sifive_fu740_prci_wrpll_clk_ops,
+ .pwd = &__prci_hfpclkpll_data,
+ },
+ [PRCI_CLK_CLTXPLL] = {
+ .name = "cltxpll",
+ .parent_name = "hfclk",
+ .ops = &sifive_fu740_prci_wrpll_clk_ops,
+ .pwd = &__prci_cltxpll_data,
+ },
+ [PRCI_CLK_TLCLK] = {
+ .name = "tlclk",
+ .parent_name = "corepll",
+ .ops = &sifive_fu740_prci_tlclksel_clk_ops,
+ },
+ [PRCI_CLK_PCLK] = {
+ .name = "pclk",
+ .parent_name = "hfpclkpll",
+ .ops = &sifive_fu740_prci_hfpclkplldiv_clk_ops,
+ },
+};
diff --git a/drivers/clk/sifive/fu740-prci.h b/drivers/clk/sifive/fu740-prci.h
new file mode 100644
index 000000000000..13ef971f7764
--- /dev/null
+++ b/drivers/clk/sifive/fu740-prci.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020 SiFive, Inc.
+ * Zong Li
+ */
+
+#ifndef __SIFIVE_CLK_FU740_PRCI_H
+#define __SIFIVE_CLK_FU740_PRCI_H
+
+#include "sifive-prci.h"
+
+#define NUM_CLOCK_FU740 8
+
+extern struct __prci_clock __prci_init_clocks_fu740[NUM_CLOCK_FU740];
+
+static const struct prci_clk_desc prci_clk_fu740 = {
+ .clks = __prci_init_clocks_fu740,
+ .num_clks = ARRAY_SIZE(__prci_init_clocks_fu740),
+};
+
+#endif /* __SIFIVE_CLK_FU740_PRCI_H */
diff --git a/drivers/clk/sifive/sifive-prci.c b/drivers/clk/sifive/sifive-prci.c
index 0ac729eeb71b..4098dbc5881a 100644
--- a/drivers/clk/sifive/sifive-prci.c
+++ b/drivers/clk/sifive/sifive-prci.c
@@ -27,6 +27,7 @@
#include <linux/of_device.h>
#include "sifive-prci.h"
#include "fu540-prci.h"
+#include "fu740-prci.h"
/*
* Private functions
@@ -242,6 +243,18 @@ unsigned long sifive_prci_tlclksel_recalc_rate(struct clk_hw *hw,
return div_u64(parent_rate, div);
}
+/* HFPCLK clock integration */
+
+unsigned long sifive_prci_hfpclkplldiv_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct __prci_clock *pc = clk_hw_to_prci_clock(hw);
+ struct __prci_data *pd = pc->pd;
+ u32 div = __prci_readl(pd, PRCI_HFPCLKPLLDIV_OFFSET);
+
+ return div_u64(parent_rate, div + 2);
+}
+
/*
* Core clock mux control
*/
@@ -287,6 +300,112 @@ void sifive_prci_coreclksel_use_corepll(struct __prci_data *pd)
r = __prci_readl(pd, PRCI_CORECLKSEL_OFFSET); /* barrier */
}
+/**
+ * sifive_prci_coreclksel_use_final_corepll() - switch the CORECLK mux to output
+ * FINAL_COREPLL
+ * @pd: struct __prci_data * for the PRCI containing the CORECLK mux reg
+ *
+ * Switch the CORECLK mux to the final COREPLL output clock; return once
+ * complete.
+ *
+ * Context: Any context. Caller must prevent concurrent changes to the
+ * PRCI_CORECLKSEL_OFFSET register.
+ */
+void sifive_prci_coreclksel_use_final_corepll(struct __prci_data *pd)
+{
+ u32 r;
+
+ r = __prci_readl(pd, PRCI_CORECLKSEL_OFFSET);
+ r &= ~PRCI_CORECLKSEL_CORECLKSEL_MASK;
+ __prci_writel(r, PRCI_CORECLKSEL_OFFSET, pd);
+
+ r = __prci_readl(pd, PRCI_CORECLKSEL_OFFSET); /* barrier */
+}
+
+/**
+ * sifive_prci_corepllsel_use_dvfscorepll() - switch the COREPLL mux to
+ * output DVFS_COREPLL
+ * @pd: struct __prci_data * for the PRCI containing the COREPLL mux reg
+ *
+ * Switch the COREPLL mux to the DVFSCOREPLL output clock; return once complete.
+ *
+ * Context: Any context. Caller must prevent concurrent changes to the
+ * PRCI_COREPLLSEL_OFFSET register.
+ */
+void sifive_prci_corepllsel_use_dvfscorepll(struct __prci_data *pd)
+{
+ u32 r;
+
+ r = __prci_readl(pd, PRCI_COREPLLSEL_OFFSET);
+ r |= PRCI_COREPLLSEL_COREPLLSEL_MASK;
+ __prci_writel(r, PRCI_COREPLLSEL_OFFSET, pd);
+
+ r = __prci_readl(pd, PRCI_COREPLLSEL_OFFSET); /* barrier */
+}
+
+/**
+ * sifive_prci_corepllsel_use_corepll() - switch the COREPLL mux to
+ * output COREPLL
+ * @pd: struct __prci_data * for the PRCI containing the COREPLL mux reg
+ *
+ * Switch the COREPLL mux to the COREPLL output clock; return once complete.
+ *
+ * Context: Any context. Caller must prevent concurrent changes to the
+ * PRCI_COREPLLSEL_OFFSET register.
+ */
+void sifive_prci_corepllsel_use_corepll(struct __prci_data *pd)
+{
+ u32 r;
+
+ r = __prci_readl(pd, PRCI_COREPLLSEL_OFFSET);
+ r &= ~PRCI_COREPLLSEL_COREPLLSEL_MASK;
+ __prci_writel(r, PRCI_COREPLLSEL_OFFSET, pd);
+
+ r = __prci_readl(pd, PRCI_COREPLLSEL_OFFSET); /* barrier */
+}
+
+/**
+ * sifive_prci_hfpclkpllsel_use_hfclk() - switch the HFPCLKPLL mux to
+ * output HFCLK
+ * @pd: struct __prci_data * for the PRCI containing the HFPCLKPLL mux reg
+ *
+ * Switch the HFPCLKPLL mux to the HFCLK input source; return once complete.
+ *
+ * Context: Any context. Caller must prevent concurrent changes to the
+ * PRCI_HFPCLKPLLSEL_OFFSET register.
+ */
+void sifive_prci_hfpclkpllsel_use_hfclk(struct __prci_data *pd)
+{
+ u32 r;
+
+ r = __prci_readl(pd, PRCI_HFPCLKPLLSEL_OFFSET);
+ r |= PRCI_HFPCLKPLLSEL_HFPCLKPLLSEL_MASK;
+ __prci_writel(r, PRCI_HFPCLKPLLSEL_OFFSET, pd);
+
+ r = __prci_readl(pd, PRCI_HFPCLKPLLSEL_OFFSET); /* barrier */
+}
+
+/**
+ * sifive_prci_hfpclkpllsel_use_hfpclkpll() - switch the HFPCLKPLL mux to
+ * output HFPCLKPLL
+ * @pd: struct __prci_data * for the PRCI containing the HFPCLKPLL mux reg
+ *
+ * Switch the HFPCLKPLL mux to the HFPCLKPLL output clock; return once complete.
+ *
+ * Context: Any context. Caller must prevent concurrent changes to the
+ * PRCI_HFPCLKPLLSEL_OFFSET register.
+ */
+void sifive_prci_hfpclkpllsel_use_hfpclkpll(struct __prci_data *pd)
+{
+ u32 r;
+
+ r = __prci_readl(pd, PRCI_HFPCLKPLLSEL_OFFSET);
+ r &= ~PRCI_HFPCLKPLLSEL_HFPCLKPLLSEL_MASK;
+ __prci_writel(r, PRCI_HFPCLKPLLSEL_OFFSET, pd);
+
+ r = __prci_readl(pd, PRCI_HFPCLKPLLSEL_OFFSET); /* barrier */
+}
+
/**
* __prci_register_clocks() - register clock controls in the PRCI
* @dev: Linux struct device *
@@ -391,6 +510,7 @@ static int sifive_prci_probe(struct platform_device *pdev)
static const struct of_device_id sifive_prci_of_match[] = {
{.compatible = "sifive,fu540-c000-prci", .data = &prci_clk_fu540},
+ {.compatible = "sifive,fu740-c000-prci", .data = &prci_clk_fu740},
{}
};
diff --git a/drivers/clk/sifive/sifive-prci.h b/drivers/clk/sifive/sifive-prci.h
index 025f717bc053..bc0646bc9c3e 100644
--- a/drivers/clk/sifive/sifive-prci.h
+++ b/drivers/clk/sifive/sifive-prci.h
@@ -117,6 +117,87 @@
#define PRCI_CLKMUXSTATUSREG_TLCLKSEL_STATUS_MASK \
(0x1 << PRCI_CLKMUXSTATUSREG_TLCLKSEL_STATUS_SHIFT)
+/* CLTXPLLCFG0 */
+#define PRCI_CLTXPLLCFG0_OFFSET 0x30
+#define PRCI_CLTXPLLCFG0_DIVR_SHIFT 0
+#define PRCI_CLTXPLLCFG0_DIVR_MASK (0x3f << PRCI_CLTXPLLCFG0_DIVR_SHIFT)
+#define PRCI_CLTXPLLCFG0_DIVF_SHIFT 6
+#define PRCI_CLTXPLLCFG0_DIVF_MASK (0x1ff << PRCI_CLTXPLLCFG0_DIVF_SHIFT)
+#define PRCI_CLTXPLLCFG0_DIVQ_SHIFT 15
+#define PRCI_CLTXPLLCFG0_DIVQ_MASK (0x7 << PRCI_CLTXPLLCFG0_DIVQ_SHIFT)
+#define PRCI_CLTXPLLCFG0_RANGE_SHIFT 18
+#define PRCI_CLTXPLLCFG0_RANGE_MASK (0x7 << PRCI_CLTXPLLCFG0_RANGE_SHIFT)
+#define PRCI_CLTXPLLCFG0_BYPASS_SHIFT 24
+#define PRCI_CLTXPLLCFG0_BYPASS_MASK (0x1 << PRCI_CLTXPLLCFG0_BYPASS_SHIFT)
+#define PRCI_CLTXPLLCFG0_FSE_SHIFT 25
+#define PRCI_CLTXPLLCFG0_FSE_MASK (0x1 << PRCI_CLTXPLLCFG0_FSE_SHIFT)
+#define PRCI_CLTXPLLCFG0_LOCK_SHIFT 31
+#define PRCI_CLTXPLLCFG0_LOCK_MASK (0x1 << PRCI_CLTXPLLCFG0_LOCK_SHIFT)
+
+/* CLTXPLLCFG1 */
+#define PRCI_CLTXPLLCFG1_OFFSET 0x34
+#define PRCI_CLTXPLLCFG1_CKE_SHIFT 24
+#define PRCI_CLTXPLLCFG1_CKE_MASK (0x1 << PRCI_CLTXPLLCFG1_CKE_SHIFT)
+
+/* DVFSCOREPLLCFG0 */
+#define PRCI_DVFSCOREPLLCFG0_OFFSET 0x38
+
+/* DVFSCOREPLLCFG1 */
+#define PRCI_DVFSCOREPLLCFG1_OFFSET 0x3c
+#define PRCI_DVFSCOREPLLCFG1_CKE_SHIFT 24
+#define PRCI_DVFSCOREPLLCFG1_CKE_MASK (0x1 << PRCI_DVFSCOREPLLCFG1_CKE_SHIFT)
+
+/* COREPLLSEL */
+#define PRCI_COREPLLSEL_OFFSET 0x40
+#define PRCI_COREPLLSEL_COREPLLSEL_SHIFT 0
+#define PRCI_COREPLLSEL_COREPLLSEL_MASK \
+ (0x1 << PRCI_COREPLLSEL_COREPLLSEL_SHIFT)
+
+/* HFPCLKPLLCFG0 */
+#define PRCI_HFPCLKPLLCFG0_OFFSET 0x50
+#define PRCI_HFPCLKPLL_CFG0_DIVR_SHIFT 0
+#define PRCI_HFPCLKPLL_CFG0_DIVR_MASK \
+ (0x3f << PRCI_HFPCLKPLLCFG0_DIVR_SHIFT)
+#define PRCI_HFPCLKPLL_CFG0_DIVF_SHIFT 6
+#define PRCI_HFPCLKPLL_CFG0_DIVF_MASK \
+ (0x1ff << PRCI_HFPCLKPLLCFG0_DIVF_SHIFT)
+#define PRCI_HFPCLKPLL_CFG0_DIVQ_SHIFT 15
+#define PRCI_HFPCLKPLL_CFG0_DIVQ_MASK \
+ (0x7 << PRCI_HFPCLKPLLCFG0_DIVQ_SHIFT)
+#define PRCI_HFPCLKPLL_CFG0_RANGE_SHIFT 18
+#define PRCI_HFPCLKPLL_CFG0_RANGE_MASK \
+ (0x7 << PRCI_HFPCLKPLLCFG0_RANGE_SHIFT)
+#define PRCI_HFPCLKPLL_CFG0_BYPASS_SHIFT 24
+#define PRCI_HFPCLKPLL_CFG0_BYPASS_MASK \
+ (0x1 << PRCI_HFPCLKPLLCFG0_BYPASS_SHIFT)
+#define PRCI_HFPCLKPLL_CFG0_FSE_SHIFT 25
+#define PRCI_HFPCLKPLL_CFG0_FSE_MASK \
+ (0x1 << PRCI_HFPCLKPLLCFG0_FSE_SHIFT)
+#define PRCI_HFPCLKPLL_CFG0_LOCK_SHIFT 31
+#define PRCI_HFPCLKPLL_CFG0_LOCK_MASK \
+ (0x1 << PRCI_HFPCLKPLLCFG0_LOCK_SHIFT)
+
+/* HFPCLKPLLCFG1 */
+#define PRCI_HFPCLKPLLCFG1_OFFSET 0x54
+#define PRCI_HFPCLKPLLCFG1_CKE_SHIFT 24
+#define PRCI_HFPCLKPLLCFG1_CKE_MASK \
+ (0x1 << PRCI_HFPCLKPLLCFG1_CKE_SHIFT)
+
+/* HFPCLKPLLSEL */
+#define PRCI_HFPCLKPLLSEL_OFFSET 0x58
+#define PRCI_HFPCLKPLLSEL_HFPCLKPLLSEL_SHIFT 0
+#define PRCI_HFPCLKPLLSEL_HFPCLKPLLSEL_MASK \
+ (0x1 << PRCI_HFPCLKPLLSEL_HFPCLKPLLSEL_SHIFT)
+
+/* HFPCLKPLLDIV */
+#define PRCI_HFPCLKPLLDIV_OFFSET 0x5c
+
+/* PRCIPLL */
+#define PRCI_PRCIPLL_OFFSET 0xe0
+
+/* PROCMONCFG */
+#define PRCI_PROCMONCFG_OFFSET 0xf0
+
/*
* Private structures
*/
@@ -187,6 +268,11 @@ struct prci_clk_desc {
/* Core clock mux control */
void sifive_prci_coreclksel_use_hfclk(struct __prci_data *pd);
void sifive_prci_coreclksel_use_corepll(struct __prci_data *pd);
+void sifive_prci_coreclksel_use_final_corepll(struct __prci_data *pd);
+void sifive_prci_corepllsel_use_dvfscorepll(struct __prci_data *pd);
+void sifive_prci_corepllsel_use_corepll(struct __prci_data *pd);
+void sifive_prci_hfpclkpllsel_use_hfclk(struct __prci_data *pd);
+void sifive_prci_hfpclkpllsel_use_hfpclkpll(struct __prci_data *pd);
/* Linux clock framework integration */
long sifive_prci_wrpll_round_rate(struct clk_hw *hw, unsigned long rate,
@@ -197,5 +283,7 @@ unsigned long sifive_prci_wrpll_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate);
unsigned long sifive_prci_tlclksel_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate);
+unsigned long sifive_prci_hfpclkplldiv_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate);
#endif /* __SIFIVE_CLK_SIFIVE_PRCI_H */
diff --git a/include/dt-bindings/clock/sifive-fu740-prci.h b/include/dt-bindings/clock/sifive-fu740-prci.h
new file mode 100644
index 000000000000..cd7706ea5677
--- /dev/null
+++ b/include/dt-bindings/clock/sifive-fu740-prci.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/*
+ * Copyright (C) 2019 SiFive, Inc.
+ * Wesley Terpstra
+ * Paul Walmsley
+ * Zong Li
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_SIFIVE_FU740_PRCI_H
+#define __DT_BINDINGS_CLOCK_SIFIVE_FU740_PRCI_H
+
+/* Clock indexes for use by Device Tree data and the PRCI driver */
+
+#define PRCI_CLK_COREPLL 0
+#define PRCI_CLK_DDRPLL 1
+#define PRCI_CLK_GEMGXLPLL 2
+#define PRCI_CLK_DVFSCOREPLL 3
+#define PRCI_CLK_HFPCLKPLL 4
+#define PRCI_CLK_CLTXPLL 5
+#define PRCI_CLK_TLCLK 6
+#define PRCI_CLK_PCLK 7
+
+#endif /* __DT_BINDINGS_CLOCK_SIFIVE_FU740_PRCI_H */
--
2.28.0
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