From: Peng Fan <[email protected]>
V4:
Add Abel's R-b and Krzysztof's A-b
Address Krzysztof's comments
Address Sascha's comments in patch 4/5
Typo fix
V3:
Drop an error included header file in 5/5
V2:
Split yaml binding and clock header
apply to Abel's tree
Add i.MX93 clk bindings and clk.
Peng Fan (5):
dt-bindings: clock: Add imx93 clock support
dt-bindings: clock: add i.MX93 clock definition
clk: imx: add i.MX93 composite clk
clk: imx: support fracn gppll
clk: imx: add i.MX93 clk
.../bindings/clock/imx93-clock.yaml | 62 ++++
drivers/clk/imx/Kconfig | 6 +
drivers/clk/imx/Makefile | 4 +
drivers/clk/imx/clk-composite-93.c | 93 +++++
drivers/clk/imx/clk-fracn-gppll.c | 326 +++++++++++++++++
drivers/clk/imx/clk-imx93.c | 338 ++++++++++++++++++
drivers/clk/imx/clk.h | 30 ++
include/dt-bindings/clock/imx93-clock.h | 201 +++++++++++
8 files changed, 1060 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/imx93-clock.yaml
create mode 100644 drivers/clk/imx/clk-composite-93.c
create mode 100644 drivers/clk/imx/clk-fracn-gppll.c
create mode 100644 drivers/clk/imx/clk-imx93.c
create mode 100644 include/dt-bindings/clock/imx93-clock.h
--
2.25.1
From: Peng Fan <[email protected]>
This PLL module is a Fractional-N synthesizer,
supporting 30-bit numerator and denominator. Numerator is a signed
number. It has feature to adjust fractional portion of feedback
divider dynamically. This fracn gppll is used in i.MX93.
Reviewed-by: Abel Vesa <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
---
drivers/clk/imx/Makefile | 1 +
drivers/clk/imx/clk-fracn-gppll.c | 326 ++++++++++++++++++++++++++++++
drivers/clk/imx/clk.h | 21 ++
3 files changed, 348 insertions(+)
create mode 100644 drivers/clk/imx/clk-fracn-gppll.c
diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile
index 36c04922d789..60c8a4bb7574 100644
--- a/drivers/clk/imx/Makefile
+++ b/drivers/clk/imx/Makefile
@@ -5,6 +5,7 @@ mxc-clk-objs += clk-busy.o
mxc-clk-objs += clk-composite-7ulp.o
mxc-clk-objs += clk-composite-8m.o
mxc-clk-objs += clk-composite-93.o
+mxc-clk-objs += clk-fracn-gppll.o
mxc-clk-objs += clk-cpu.o
mxc-clk-objs += clk-divider-gate.o
mxc-clk-objs += clk-fixup-div.o
diff --git a/drivers/clk/imx/clk-fracn-gppll.c b/drivers/clk/imx/clk-fracn-gppll.c
new file mode 100644
index 000000000000..b6add3a2e472
--- /dev/null
+++ b/drivers/clk/imx/clk-fracn-gppll.c
@@ -0,0 +1,326 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2021 NXP
+ */
+
+#include <asm/div64.h>
+#include <linux/bitfield.h>
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/export.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
+
+#include "clk.h"
+
+#define PLL_CTRL 0x0
+#define CLKMUX_BYPASS BIT(2)
+#define CLKMUX_EN BIT(1)
+#define POWERUP_MASK BIT(0)
+
+#define PLL_ANA_PRG 0x10
+#define PLL_SPREAD_SPECTRUM 0x30
+
+#define PLL_NUMERATOR 0x40
+#define PLL_MFN_MASK GENMASK(31, 2)
+#define PLL_MFN_SHIFT 2
+
+#define PLL_DENOMINATOR 0x50
+#define PLL_MFD_MASK GENMASK(29, 0)
+
+#define PLL_DIV 0x60
+#define PLL_MFI_MASK GENMASK(24, 16)
+#define PLL_MFI_SHIFT 16
+#define PLL_RDIV_MASK GENMASK(15, 13)
+#define PLL_RDIV_SHIFT 13
+#define PLL_ODIV_MASK GENMASK(7, 0)
+
+#define PLL_DFS_CTRL(x) (0x70 + (x) * 0x10)
+
+#define PLL_STATUS 0xF0
+#define LOCK_STATUS BIT(0)
+
+#define DFS_STATUS 0xF4
+
+#define LOCK_TIMEOUT_US 200
+
+#define PLL_FRACN_GP(_rate, _mfi, _mfn, _mfd, _rdiv, _odiv) \
+ { \
+ .rate = (_rate), \
+ .mfi = (_mfi), \
+ .mfn = (_mfn), \
+ .mfd = (_mfd), \
+ .rdiv = (_rdiv), \
+ .odiv = (_odiv), \
+ }
+
+struct clk_fracn_gppll {
+ struct clk_hw hw;
+ void __iomem *base;
+ const struct imx_fracn_gppll_rate_table *rate_table;
+ int rate_count;
+};
+
+/*
+ * Fvco = Fref * (MFI + MFN / MFD)
+ * Fout = Fvco / (rdiv * odiv)
+ */
+static const struct imx_fracn_gppll_rate_table fracn_tbl[] = {
+ PLL_FRACN_GP(650000000U, 81, 0, 0, 0, 3),
+ PLL_FRACN_GP(594000000U, 198, 0, 0, 0, 8),
+ PLL_FRACN_GP(560000000U, 70, 0, 0, 0, 3),
+ PLL_FRACN_GP(400000000U, 50, 0, 0, 0, 3),
+ PLL_FRACN_GP(393216000U, 81, 92, 100, 0, 5)
+};
+
+struct imx_fracn_gppll_clk imx_fracn_gppll = {
+ .rate_table = fracn_tbl,
+ .rate_count = ARRAY_SIZE(fracn_tbl),
+};
+EXPORT_SYMBOL_GPL(imx_fracn_gppll);
+
+static inline struct clk_fracn_gppll *to_clk_fracn_gppll(struct clk_hw *hw)
+{
+ return container_of(hw, struct clk_fracn_gppll, hw);
+}
+
+static const struct imx_fracn_gppll_rate_table *
+imx_get_pll_settings(struct clk_fracn_gppll *pll, unsigned long rate)
+{
+ const struct imx_fracn_gppll_rate_table *rate_table = pll->rate_table;
+ int i;
+
+ for (i = 0; i < pll->rate_count; i++)
+ if (rate == rate_table[i].rate)
+ return &rate_table[i];
+
+ return NULL;
+}
+
+static long clk_fracn_gppll_round_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long *prate)
+{
+ struct clk_fracn_gppll *pll = to_clk_fracn_gppll(hw);
+ const struct imx_fracn_gppll_rate_table *rate_table = pll->rate_table;
+ int i;
+
+ /* Assuming rate_table is in descending order */
+ for (i = 0; i < pll->rate_count; i++)
+ if (rate >= rate_table[i].rate)
+ return rate_table[i].rate;
+
+ /* return minimum supported value */
+ return rate_table[pll->rate_count - 1].rate;
+}
+
+static unsigned long clk_fracn_gppll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
+{
+ struct clk_fracn_gppll *pll = to_clk_fracn_gppll(hw);
+ const struct imx_fracn_gppll_rate_table *rate_table = pll->rate_table;
+ u32 pll_numerator, pll_denominator, pll_div;
+ u32 mfi, mfn, mfd, rdiv, odiv;
+ u64 fvco = parent_rate;
+ long rate = 0;
+ int i;
+
+ pll_numerator = readl_relaxed(pll->base + PLL_NUMERATOR);
+ mfn = FIELD_GET(PLL_MFN_MASK, pll_numerator);
+
+ pll_denominator = readl_relaxed(pll->base + PLL_DENOMINATOR);
+ mfd = FIELD_GET(PLL_MFD_MASK, pll_denominator);
+
+ pll_div = readl_relaxed(pll->base + PLL_DIV);
+ mfi = FIELD_GET(PLL_MFI_MASK, pll_div);
+
+ rdiv = FIELD_GET(PLL_RDIV_MASK, pll_div);
+ rdiv = rdiv + 1;
+ odiv = FIELD_GET(PLL_ODIV_MASK, pll_div);
+ switch (odiv) {
+ case 0:
+ odiv = 2;
+ break;
+ case 1:
+ odiv = 3;
+ break;
+ default:
+ break;
+ }
+
+ /*
+ * Sometimes, the recalculated rate has deviation due to
+ * the frac part. So find the accurate pll rate from the table
+ * first, if no match rate in the table, use the rate calculated
+ * from the equation below.
+ */
+ for (i = 0; i < pll->rate_count; i++) {
+ if (rate_table[i].mfn == mfn && rate_table[i].mfi == mfi &&
+ rate_table[i].mfd == mfd && rate_table[i].rdiv == rdiv &&
+ rate_table[i].odiv == odiv)
+ rate = rate_table[i].rate;
+ }
+
+ if (rate)
+ return (unsigned long)rate;
+
+ /* Fvco = Fref * (MFI + MFN / MFD) */
+ fvco = fvco * mfi * mfd + fvco * mfn;
+ do_div(fvco, mfd * rdiv * odiv);
+
+ return (unsigned long)fvco;
+}
+
+static int clk_fracn_gppll_wait_lock(struct clk_fracn_gppll *pll)
+{
+ u32 val;
+
+ return readl_poll_timeout(pll->base + PLL_STATUS, val,
+ val & LOCK_STATUS, 0, LOCK_TIMEOUT_US);
+}
+
+static int clk_fracn_gppll_set_rate(struct clk_hw *hw, unsigned long drate,
+ unsigned long prate)
+{
+ struct clk_fracn_gppll *pll = to_clk_fracn_gppll(hw);
+ const struct imx_fracn_gppll_rate_table *rate;
+ u32 tmp, pll_div, ana_mfn;
+ int ret;
+
+ rate = imx_get_pll_settings(pll, drate);
+
+ /* Disable output */
+ tmp = readl_relaxed(pll->base + PLL_CTRL);
+ tmp &= ~CLKMUX_EN;
+ writel_relaxed(tmp, pll->base + PLL_CTRL);
+
+ /* Power Down */
+ tmp &= ~POWERUP_MASK;
+ writel_relaxed(tmp, pll->base + PLL_CTRL);
+
+ /* Disable BYPASS */
+ tmp &= ~CLKMUX_BYPASS;
+ writel_relaxed(tmp, pll->base + PLL_CTRL);
+
+ pll_div = FIELD_PREP(PLL_RDIV_MASK, rate->rdiv) | rate->odiv |
+ FIELD_PREP(PLL_MFI_MASK, rate->mfi);
+ writel_relaxed(pll_div, pll->base + PLL_DIV);
+ writel_relaxed(rate->mfd, pll->base + PLL_DENOMINATOR);
+ writel_relaxed(rate->mfn << PLL_MFN_SHIFT, pll->base + PLL_NUMERATOR);
+
+ /* Wait for 5us according to fracn mode pll doc */
+ udelay(5);
+
+ /* Enable Powerup */
+ tmp |= POWERUP_MASK;
+ writel_relaxed(tmp, pll->base + PLL_CTRL);
+
+ /* Wait Lock */
+ ret = clk_fracn_gppll_wait_lock(pll);
+ if (ret)
+ return ret;
+
+ /* Enable output */
+ tmp |= CLKMUX_EN;
+ writel_relaxed(tmp, pll->base + PLL_CTRL);
+
+ ana_mfn = (readl_relaxed(pll->base + PLL_STATUS) & PLL_MFN_MASK) >> PLL_MFN_SHIFT;
+
+ WARN(ana_mfn != rate->mfn, "ana_mfn != rate->mfn\n");
+
+ return 0;
+}
+
+static int clk_fracn_gppll_prepare(struct clk_hw *hw)
+{
+ struct clk_fracn_gppll *pll = to_clk_fracn_gppll(hw);
+ u32 val;
+ int ret;
+
+ val = readl_relaxed(pll->base + PLL_CTRL);
+ if (val & POWERUP_MASK)
+ return 0;
+
+ val |= CLKMUX_BYPASS;
+ writel_relaxed(val, pll->base + PLL_CTRL);
+
+ val |= POWERUP_MASK;
+ writel_relaxed(val, pll->base + PLL_CTRL);
+
+ val |= CLKMUX_EN;
+ writel_relaxed(val, pll->base + PLL_CTRL);
+
+ ret = clk_fracn_gppll_wait_lock(pll);
+ if (ret)
+ return ret;
+
+ val &= ~CLKMUX_BYPASS;
+ writel_relaxed(val, pll->base + PLL_CTRL);
+
+ return 0;
+}
+
+static int clk_fracn_gppll_is_prepared(struct clk_hw *hw)
+{
+ struct clk_fracn_gppll *pll = to_clk_fracn_gppll(hw);
+ u32 val;
+
+ val = readl_relaxed(pll->base + PLL_CTRL);
+
+ return (val & POWERUP_MASK) ? 1 : 0;
+}
+
+static void clk_fracn_gppll_unprepare(struct clk_hw *hw)
+{
+ struct clk_fracn_gppll *pll = to_clk_fracn_gppll(hw);
+ u32 val;
+
+ val = readl_relaxed(pll->base + PLL_CTRL);
+ val &= ~POWERUP_MASK;
+ writel_relaxed(val, pll->base + PLL_CTRL);
+}
+
+static const struct clk_ops clk_fracn_gppll_ops = {
+ .prepare = clk_fracn_gppll_prepare,
+ .unprepare = clk_fracn_gppll_unprepare,
+ .is_prepared = clk_fracn_gppll_is_prepared,
+ .recalc_rate = clk_fracn_gppll_recalc_rate,
+ .round_rate = clk_fracn_gppll_round_rate,
+ .set_rate = clk_fracn_gppll_set_rate,
+};
+
+struct clk_hw *imx_clk_fracn_gppll(const char *name, const char *parent_name, void __iomem *base,
+ const struct imx_fracn_gppll_clk *pll_clk)
+{
+ struct clk_fracn_gppll *pll;
+ struct clk_hw *hw;
+ struct clk_init_data init;
+ int ret;
+
+ pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+ if (!pll)
+ return ERR_PTR(-ENOMEM);
+
+ init.name = name;
+ init.flags = pll_clk->flags;
+ init.parent_names = &parent_name;
+ init.num_parents = 1;
+ init.ops = &clk_fracn_gppll_ops;
+
+ pll->base = base;
+ pll->hw.init = &init;
+ pll->rate_table = pll_clk->rate_table;
+ pll->rate_count = pll_clk->rate_count;
+
+ hw = &pll->hw;
+
+ ret = clk_hw_register(NULL, hw);
+ if (ret) {
+ pr_err("%s: failed to register pll %s %d\n", __func__, name, ret);
+ kfree(pll);
+ return ERR_PTR(ret);
+ }
+
+ return hw;
+}
+EXPORT_SYMBOL_GPL(imx_clk_fracn_gppll);
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index 63eb7c53b123..a7cbbcd1a3f4 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -72,6 +72,27 @@ extern struct imx_pll14xx_clk imx_1416x_pll;
extern struct imx_pll14xx_clk imx_1443x_pll;
extern struct imx_pll14xx_clk imx_1443x_dram_pll;
+/* NOTE: Rate table should be kept sorted in descending order. */
+struct imx_fracn_gppll_rate_table {
+ unsigned int rate;
+ unsigned int mfi;
+ unsigned int mfn;
+ unsigned int mfd;
+ unsigned int rdiv;
+ unsigned int odiv;
+};
+
+struct imx_fracn_gppll_clk {
+ const struct imx_fracn_gppll_rate_table *rate_table;
+ int rate_count;
+ int flags;
+};
+
+struct clk_hw *imx_clk_fracn_gppll(const char *name, const char *parent_name, void __iomem *base,
+ const struct imx_fracn_gppll_clk *pll_clk);
+
+extern struct imx_fracn_gppll_clk imx_fracn_gppll;
+
#define imx_clk_cpu(name, parent_name, div, mux, pll, step) \
to_clk(imx_clk_hw_cpu(name, parent_name, div, mux, pll, step))
--
2.25.1
From: Peng Fan <[email protected]>
i.MX93 CCM ROOT clock has a mux, gate and divider in one register, here
is to combine all these into one composite clk and simplify clk tree.
i.MX93 CCM is a new IP compared with i.MX8M, so introduce a new file.
Reviewed-by: Abel Vesa <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
---
drivers/clk/imx/Makefile | 1 +
drivers/clk/imx/clk-composite-93.c | 93 ++++++++++++++++++++++++++++++
drivers/clk/imx/clk.h | 9 +++
3 files changed, 103 insertions(+)
create mode 100644 drivers/clk/imx/clk-composite-93.c
diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile
index aa8f5204d7e1..36c04922d789 100644
--- a/drivers/clk/imx/Makefile
+++ b/drivers/clk/imx/Makefile
@@ -4,6 +4,7 @@ mxc-clk-objs += clk.o
mxc-clk-objs += clk-busy.o
mxc-clk-objs += clk-composite-7ulp.o
mxc-clk-objs += clk-composite-8m.o
+mxc-clk-objs += clk-composite-93.o
mxc-clk-objs += clk-cpu.o
mxc-clk-objs += clk-divider-gate.o
mxc-clk-objs += clk-fixup-div.o
diff --git a/drivers/clk/imx/clk-composite-93.c b/drivers/clk/imx/clk-composite-93.c
new file mode 100644
index 000000000000..b44619aa5ca5
--- /dev/null
+++ b/drivers/clk/imx/clk-composite-93.c
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2021 NXP
+ *
+ * Peng Fan <[email protected]>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/errno.h>
+#include <linux/export.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+#include "clk.h"
+
+#define CCM_DIV_SHIFT 0
+#define CCM_DIV_WIDTH 8
+#define CCM_MUX_SHIFT 8
+#define CCM_MUX_MASK 3
+#define CCM_OFF_SHIFT 24
+
+#define AUTHEN_OFFSET 0x30
+#define TZ_NS_SHIFT 9
+#define TZ_NS_MASK BIT(9)
+
+struct clk_hw *imx93_clk_composite_flags(const char *name, const char * const *parent_names,
+ int num_parents, void __iomem *reg,
+ unsigned long flags)
+{
+ struct clk_hw *hw = ERR_PTR(-ENOMEM), *mux_hw;
+ struct clk_hw *div_hw, *gate_hw;
+ struct clk_divider *div = NULL;
+ struct clk_gate *gate = NULL;
+ struct clk_mux *mux = NULL;
+ bool clk_ro = false;
+
+ mux = kzalloc(sizeof(*mux), GFP_KERNEL);
+ if (!mux)
+ goto fail;
+
+ mux_hw = &mux->hw;
+ mux->reg = reg;
+ mux->shift = CCM_MUX_SHIFT;
+ mux->mask = CCM_MUX_MASK;
+ mux->lock = &imx_ccm_lock;
+
+ div = kzalloc(sizeof(*div), GFP_KERNEL);
+ if (!div)
+ goto fail;
+
+ div_hw = &div->hw;
+ div->reg = reg;
+ div->shift = CCM_DIV_SHIFT;
+ div->width = CCM_DIV_WIDTH;
+ div->lock = &imx_ccm_lock;
+ div->flags = CLK_DIVIDER_ROUND_CLOSEST;
+
+ if (!(readl(reg + AUTHEN_OFFSET) & TZ_NS_MASK))
+ clk_ro = true;
+
+ if (clk_ro) {
+ hw = clk_hw_register_composite(NULL, name, parent_names, num_parents,
+ mux_hw, &clk_mux_ro_ops, div_hw,
+ &clk_divider_ro_ops, NULL, NULL, flags);
+ } else {
+ gate = kzalloc(sizeof(*gate), GFP_KERNEL);
+ if (!gate)
+ goto fail;
+
+ gate_hw = &gate->hw;
+ gate->reg = reg;
+ gate->bit_idx = CCM_OFF_SHIFT;
+ gate->lock = &imx_ccm_lock;
+ gate->flags = CLK_GATE_SET_TO_DISABLE;
+
+ hw = clk_hw_register_composite(NULL, name, parent_names, num_parents,
+ mux_hw, &clk_mux_ops, div_hw,
+ &clk_divider_ops, gate_hw,
+ &clk_gate_ops, flags | CLK_SET_RATE_NO_REPARENT);
+ }
+
+ if (IS_ERR(hw))
+ goto fail;
+
+ return hw;
+
+fail:
+ kfree(gate);
+ kfree(div);
+ kfree(mux);
+ return ERR_CAST(hw);
+}
+EXPORT_SYMBOL_GPL(imx93_clk_composite_flags);
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index 7d220a01de1f..63eb7c53b123 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -419,6 +419,15 @@ struct clk_hw *__imx8m_clk_hw_composite(const char *name,
IMX_COMPOSITE_FW_MANAGED, \
IMX_COMPOSITE_CLK_FLAGS_CRITICAL_GET_RATE_NO_CACHE)
+struct clk_hw *imx93_clk_composite_flags(const char *name,
+ const char * const *parent_names,
+ int num_parents,
+ void __iomem *reg,
+ unsigned long flags);
+#define imx93_clk_composite(name, parent_names, num_parents, reg) \
+ imx93_clk_composite_flags(name, parent_names, num_parents, reg, \
+ CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE)
+
struct clk_hw *imx_clk_hw_divider_gate(const char *name, const char *parent_name,
unsigned long flags, void __iomem *reg, u8 shift, u8 width,
u8 clk_divider_flags, const struct clk_div_table *table,
--
2.25.1
From: Peng Fan <[email protected]>
Add the clock dt-binding file for i.MX93.
Reviewed-by: Abel Vesa <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
---
.../bindings/clock/imx93-clock.yaml | 62 +++++++++++++++++++
1 file changed, 62 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/imx93-clock.yaml
diff --git a/Documentation/devicetree/bindings/clock/imx93-clock.yaml b/Documentation/devicetree/bindings/clock/imx93-clock.yaml
new file mode 100644
index 000000000000..21a06194e4a3
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/imx93-clock.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/imx93-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX93 Clock Control Module Binding
+
+maintainers:
+ - Peng Fan <[email protected]>
+
+description: |
+ i.MX93 clock control module is an integrated clock controller, which
+ includes clock generator, clock gate and supplies to all modules.
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx93-ccm
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ description:
+ specify the external clocks used by the CCM module.
+ items:
+ - description: 32k osc
+ - description: 24m osc
+ - description: ext1 clock input
+
+ clock-names:
+ description:
+ specify the external clocks names used by the CCM module.
+ items:
+ - const: osc_32k
+ - const: osc_24m
+ - const: clk_ext1
+
+ '#clock-cells':
+ const: 1
+ description:
+ See include/dt-bindings/clock/imx93-clock.h for the full list of
+ i.MX93 clock IDs.
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ # Clock Control Module node:
+ - |
+ clock-controller@44450000 {
+ compatible = "fsl,imx93-ccm";
+ reg = <0x44450000 0x10000>;
+ #clock-cells = <1>;
+ };
+
+...
--
2.25.1
> Subject: Re: [PATCH V4 4/5] clk: imx: support fracn gppll
>
> On Thu, Feb 24, 2022 at 04:22:50PM +0800, Peng Fan (OSS) wrote:
> > From: Peng Fan <[email protected]>
> >
> > This PLL module is a Fractional-N synthesizer, supporting 30-bit
> > numerator and denominator. Numerator is a signed number. It has
> > feature to adjust fractional portion of feedback divider dynamically.
> > This fracn gppll is used in i.MX93.
> >
> > Reviewed-by: Abel Vesa <[email protected]>
> > Signed-off-by: Peng Fan <[email protected]>
> > ---
> > drivers/clk/imx/Makefile | 1 +
> > drivers/clk/imx/clk-fracn-gppll.c | 326
> ++++++++++++++++++++++++++++++
> > drivers/clk/imx/clk.h | 21 ++
> > 3 files changed, 348 insertions(+)
> > create mode 100644 drivers/clk/imx/clk-fracn-gppll.c
> >
> > diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile index
> > 36c04922d789..60c8a4bb7574 100644
> > --- a/drivers/clk/imx/Makefile
> > +++ b/drivers/clk/imx/Makefile
> > @@ -5,6 +5,7 @@ mxc-clk-objs += clk-busy.o mxc-clk-objs +=
> > clk-composite-7ulp.o mxc-clk-objs += clk-composite-8m.o mxc-clk-objs
> > += clk-composite-93.o
> > +mxc-clk-objs += clk-fracn-gppll.o
> > mxc-clk-objs += clk-cpu.o
> > mxc-clk-objs += clk-divider-gate.o
> > mxc-clk-objs += clk-fixup-div.o
> > diff --git a/drivers/clk/imx/clk-fracn-gppll.c
> > b/drivers/clk/imx/clk-fracn-gppll.c
> > new file mode 100644
> > index 000000000000..b6add3a2e472
> > --- /dev/null
> > +++ b/drivers/clk/imx/clk-fracn-gppll.c
> > @@ -0,0 +1,326 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/*
> > + * Copyright 2021 NXP
> > + */
> > +
> > +#include <asm/div64.h>
> > +#include <linux/bitfield.h>
> > +#include <linux/clk-provider.h>
> > +#include <linux/err.h>
> > +#include <linux/export.h>
> > +#include <linux/io.h>
> > +#include <linux/iopoll.h>
> > +#include <linux/slab.h>
> > +#include <linux/jiffies.h>
> > +
> > +#include "clk.h"
> > +
> > +#define PLL_CTRL 0x0
> > +#define CLKMUX_BYPASS BIT(2)
> > +#define CLKMUX_EN BIT(1)
> > +#define POWERUP_MASK BIT(0)
> > +
> > +#define PLL_ANA_PRG 0x10
> > +#define PLL_SPREAD_SPECTRUM 0x30
> > +
> > +#define PLL_NUMERATOR 0x40
> > +#define PLL_MFN_MASK GENMASK(31, 2)
> > +#define PLL_MFN_SHIFT 2
> > +
> > +#define PLL_DENOMINATOR 0x50
> > +#define PLL_MFD_MASK GENMASK(29, 0)
> > +
> > +#define PLL_DIV 0x60
> > +#define PLL_MFI_MASK GENMASK(24, 16)
>
> Is the MFI field really 9 bits wide? Could be, I don't have the reference manual.
> It just looks like it could be a one-off.
Yes, 9 bits wide. MFI: 24-16
Integer portion of loop divider
Sets the value of the divider in the PLL feedback loop, and the value specified establishes the
multiplication factor applied to the reference frequency. Divider value = MFI, where the chosen MFI does
not violate VCO frequency specifications.
>
> > +#define PLL_MFI_SHIFT 16
> > +#define PLL_RDIV_MASK GENMASK(15, 13)
> > +#define PLL_RDIV_SHIFT 13
> > +#define PLL_ODIV_MASK GENMASK(7, 0)
>
> The *_SHIFT defines can be removed.
ok
>
> > +static int clk_fracn_gppll_set_rate(struct clk_hw *hw, unsigned long drate,
> > + unsigned long prate)
> > +{
> > + struct clk_fracn_gppll *pll = to_clk_fracn_gppll(hw);
> > + const struct imx_fracn_gppll_rate_table *rate;
> > + u32 tmp, pll_div, ana_mfn;
> > + int ret;
> > +
> > + rate = imx_get_pll_settings(pll, drate);
> > +
> > + /* Disable output */
> > + tmp = readl_relaxed(pll->base + PLL_CTRL);
> > + tmp &= ~CLKMUX_EN;
> > + writel_relaxed(tmp, pll->base + PLL_CTRL);
> > +
> > + /* Power Down */
> > + tmp &= ~POWERUP_MASK;
> > + writel_relaxed(tmp, pll->base + PLL_CTRL);
> > +
> > + /* Disable BYPASS */
> > + tmp &= ~CLKMUX_BYPASS;
> > + writel_relaxed(tmp, pll->base + PLL_CTRL);
> > +
> > + pll_div = FIELD_PREP(PLL_RDIV_MASK, rate->rdiv) | rate->odiv |
> > + FIELD_PREP(PLL_MFI_MASK, rate->mfi);
> > + writel_relaxed(pll_div, pll->base + PLL_DIV);
> > + writel_relaxed(rate->mfd, pll->base + PLL_DENOMINATOR);
> > + writel_relaxed(rate->mfn << PLL_MFN_SHIFT, pll->base +
> > +PLL_NUMERATOR);
>
> FIELD_PREP
Fix in V5.
>
> > +
> > + /* Wait for 5us according to fracn mode pll doc */
> > + udelay(5);
> > +
> > + /* Enable Powerup */
> > + tmp |= POWERUP_MASK;
> > + writel_relaxed(tmp, pll->base + PLL_CTRL);
> > +
> > + /* Wait Lock */
> > + ret = clk_fracn_gppll_wait_lock(pll);
> > + if (ret)
> > + return ret;
> > +
> > + /* Enable output */
> > + tmp |= CLKMUX_EN;
> > + writel_relaxed(tmp, pll->base + PLL_CTRL);
> > +
> > + ana_mfn = (readl_relaxed(pll->base + PLL_STATUS) &
> PLL_MFN_MASK) >>
> > +PLL_MFN_SHIFT;
>
> FIELD_GET
Fix in V5.
Thanks,
Peng.
>
> Sascha
>
> --
> Pengutronix e.K. |
> |
> Steuerwalder Str. 21 |
> https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.p
> engutronix.de%2F&data=04%7C01%7Cpeng.fan%40nxp.com%7C4dc747
> 31b1f34e99946108d9f77c488f%7C686ea1d3bc2b4c6fa92cd99c5c301635%7
> C0%7C0%7C637812935432676998%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi
> MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C30
> 00&sdata=0MkuXWdHlLdazu63dgaTlqJdf1RJKwZcSeI2dnE0Uho%3D&am
> p;reserved=0 |
> 31137 Hildesheim, Germany | Phone:
> +49-5121-206917-0 |
> Amtsgericht Hildesheim, HRA 2686 | Fax:
> +49-5121-206917-5555 |
On Thu, Feb 24, 2022 at 04:22:50PM +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <[email protected]>
>
> This PLL module is a Fractional-N synthesizer,
> supporting 30-bit numerator and denominator. Numerator is a signed
> number. It has feature to adjust fractional portion of feedback
> divider dynamically. This fracn gppll is used in i.MX93.
>
> Reviewed-by: Abel Vesa <[email protected]>
> Signed-off-by: Peng Fan <[email protected]>
> ---
> drivers/clk/imx/Makefile | 1 +
> drivers/clk/imx/clk-fracn-gppll.c | 326 ++++++++++++++++++++++++++++++
> drivers/clk/imx/clk.h | 21 ++
> 3 files changed, 348 insertions(+)
> create mode 100644 drivers/clk/imx/clk-fracn-gppll.c
>
> diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile
> index 36c04922d789..60c8a4bb7574 100644
> --- a/drivers/clk/imx/Makefile
> +++ b/drivers/clk/imx/Makefile
> @@ -5,6 +5,7 @@ mxc-clk-objs += clk-busy.o
> mxc-clk-objs += clk-composite-7ulp.o
> mxc-clk-objs += clk-composite-8m.o
> mxc-clk-objs += clk-composite-93.o
> +mxc-clk-objs += clk-fracn-gppll.o
> mxc-clk-objs += clk-cpu.o
> mxc-clk-objs += clk-divider-gate.o
> mxc-clk-objs += clk-fixup-div.o
> diff --git a/drivers/clk/imx/clk-fracn-gppll.c b/drivers/clk/imx/clk-fracn-gppll.c
> new file mode 100644
> index 000000000000..b6add3a2e472
> --- /dev/null
> +++ b/drivers/clk/imx/clk-fracn-gppll.c
> @@ -0,0 +1,326 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright 2021 NXP
> + */
> +
> +#include <asm/div64.h>
> +#include <linux/bitfield.h>
> +#include <linux/clk-provider.h>
> +#include <linux/err.h>
> +#include <linux/export.h>
> +#include <linux/io.h>
> +#include <linux/iopoll.h>
> +#include <linux/slab.h>
> +#include <linux/jiffies.h>
> +
> +#include "clk.h"
> +
> +#define PLL_CTRL 0x0
> +#define CLKMUX_BYPASS BIT(2)
> +#define CLKMUX_EN BIT(1)
> +#define POWERUP_MASK BIT(0)
> +
> +#define PLL_ANA_PRG 0x10
> +#define PLL_SPREAD_SPECTRUM 0x30
> +
> +#define PLL_NUMERATOR 0x40
> +#define PLL_MFN_MASK GENMASK(31, 2)
> +#define PLL_MFN_SHIFT 2
> +
> +#define PLL_DENOMINATOR 0x50
> +#define PLL_MFD_MASK GENMASK(29, 0)
> +
> +#define PLL_DIV 0x60
> +#define PLL_MFI_MASK GENMASK(24, 16)
Is the MFI field really 9 bits wide? Could be, I don't have the
reference manual. It just looks like it could be a one-off.
> +#define PLL_MFI_SHIFT 16
> +#define PLL_RDIV_MASK GENMASK(15, 13)
> +#define PLL_RDIV_SHIFT 13
> +#define PLL_ODIV_MASK GENMASK(7, 0)
The *_SHIFT defines can be removed.
> +static int clk_fracn_gppll_set_rate(struct clk_hw *hw, unsigned long drate,
> + unsigned long prate)
> +{
> + struct clk_fracn_gppll *pll = to_clk_fracn_gppll(hw);
> + const struct imx_fracn_gppll_rate_table *rate;
> + u32 tmp, pll_div, ana_mfn;
> + int ret;
> +
> + rate = imx_get_pll_settings(pll, drate);
> +
> + /* Disable output */
> + tmp = readl_relaxed(pll->base + PLL_CTRL);
> + tmp &= ~CLKMUX_EN;
> + writel_relaxed(tmp, pll->base + PLL_CTRL);
> +
> + /* Power Down */
> + tmp &= ~POWERUP_MASK;
> + writel_relaxed(tmp, pll->base + PLL_CTRL);
> +
> + /* Disable BYPASS */
> + tmp &= ~CLKMUX_BYPASS;
> + writel_relaxed(tmp, pll->base + PLL_CTRL);
> +
> + pll_div = FIELD_PREP(PLL_RDIV_MASK, rate->rdiv) | rate->odiv |
> + FIELD_PREP(PLL_MFI_MASK, rate->mfi);
> + writel_relaxed(pll_div, pll->base + PLL_DIV);
> + writel_relaxed(rate->mfd, pll->base + PLL_DENOMINATOR);
> + writel_relaxed(rate->mfn << PLL_MFN_SHIFT, pll->base + PLL_NUMERATOR);
FIELD_PREP
> +
> + /* Wait for 5us according to fracn mode pll doc */
> + udelay(5);
> +
> + /* Enable Powerup */
> + tmp |= POWERUP_MASK;
> + writel_relaxed(tmp, pll->base + PLL_CTRL);
> +
> + /* Wait Lock */
> + ret = clk_fracn_gppll_wait_lock(pll);
> + if (ret)
> + return ret;
> +
> + /* Enable output */
> + tmp |= CLKMUX_EN;
> + writel_relaxed(tmp, pll->base + PLL_CTRL);
> +
> + ana_mfn = (readl_relaxed(pll->base + PLL_STATUS) & PLL_MFN_MASK) >> PLL_MFN_SHIFT;
FIELD_GET
Sascha
--
Pengutronix e.K. | |
Steuerwalder Str. 21 | http://www.pengutronix.de/ |
31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
From: Peng Fan <[email protected]>
Add i.MX93 clk driver. i.MX93 clk hardware design is different compared
with i.MX8M. It supports 4 sources for each clk root and the sources
are separated into a few groups, low speed/fast io/audio and etc.
Reviewed-by: Abel Vesa <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
---
drivers/clk/imx/Kconfig | 6 +
drivers/clk/imx/Makefile | 2 +
drivers/clk/imx/clk-imx93.c | 338 ++++++++++++++++++++++++++++++++++++
3 files changed, 346 insertions(+)
create mode 100644 drivers/clk/imx/clk-imx93.c
diff --git a/drivers/clk/imx/Kconfig b/drivers/clk/imx/Kconfig
index 45641b8bdc50..cc464a42d646 100644
--- a/drivers/clk/imx/Kconfig
+++ b/drivers/clk/imx/Kconfig
@@ -106,6 +106,12 @@ config CLK_IMX8ULP
help
Build the driver for i.MX8ULP CCM Clock Driver
+config CLK_IMX93
+ tristate "IMX93 CCM Clock Driver"
+ depends on ARCH_MXC || COMPILE_TEST
+ help
+ Build the driver for i.MX93 CCM Clock Driver
+
config CLK_IMXRT1050
tristate "IMXRT1050 CCM Clock Driver"
depends on SOC_IMXRT
diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile
index 60c8a4bb7574..88b9b9285d22 100644
--- a/drivers/clk/imx/Makefile
+++ b/drivers/clk/imx/Makefile
@@ -28,6 +28,8 @@ obj-$(CONFIG_CLK_IMX8MN) += clk-imx8mn.o
obj-$(CONFIG_CLK_IMX8MP) += clk-imx8mp.o
obj-$(CONFIG_CLK_IMX8MQ) += clk-imx8mq.o
+obj-$(CONFIG_CLK_IMX93) += clk-imx93.o
+
obj-$(CONFIG_MXC_CLK_SCU) += clk-imx-scu.o clk-imx-lpcg-scu.o
clk-imx-scu-$(CONFIG_CLK_IMX8QXP) += clk-scu.o clk-imx8qxp.o \
clk-imx8qxp-rsrc.o clk-imx8qm-rsrc.o \
diff --git a/drivers/clk/imx/clk-imx93.c b/drivers/clk/imx/clk-imx93.c
new file mode 100644
index 000000000000..7cd5e7fb0c8b
--- /dev/null
+++ b/drivers/clk/imx/clk-imx93.c
@@ -0,0 +1,338 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2021 NXP.
+ */
+
+#include <dt-bindings/clock/imx93-clock.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/debugfs.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include "clk.h"
+
+enum clk_sel {
+ LOW_SPEED_IO_SEL,
+ NON_IO_SEL,
+ FAST_SEL,
+ AUDIO_SEL,
+ VIDEO_SEL,
+ TPM_SEL,
+ CKO1_SEL,
+ CKO2_SEL,
+ MISC_SEL,
+ MAX_SEL
+};
+
+static const char *parent_names[MAX_SEL][4] = {
+ {"osc_24m", "sys_pll_pfd0_div2", "sys_pll_pfd1_div2", "video_pll"},
+ {"osc_24m", "sys_pll_pfd0_div2", "sys_pll_pfd1_div2", "sys_pll_pfd2_div2"},
+ {"osc_24m", "sys_pll_pfd0", "sys_pll_pfd1", "sys_pll_pfd2"},
+ {"osc_24m", "audio_pll", "video_pll", "clk_ext1"},
+ {"osc_24m", "audio_pll", "video_pll", "sys_pll_pfd0"},
+ {"osc_24m", "sys_pll_pfd0", "audio_pll", "clk_ext1"},
+ {"osc_24m", "sys_pll_pfd0", "sys_pll_pfd1", "audio_pll"},
+ {"osc_24m", "sys_pll_pfd0", "sys_pll_pfd1", "video_pll"},
+ {"osc_24m", "audio_pll", "video_pll", "sys_pll_pfd2"},
+};
+
+struct imx93_clk_root {
+ u32 clk;
+ char *name;
+ u32 off;
+ enum clk_sel sel;
+ unsigned long flags;
+} root_array[] = {
+ { IMX93_CLK_A55_PERIPH, "a55_periph_root", 0x0000, FAST_SEL, CLK_IS_CRITICAL },
+ { IMX93_CLK_A55_MTR_BUS, "a55_mtr_bus_root", 0x0080, LOW_SPEED_IO_SEL, CLK_IS_CRITICAL },
+ { IMX93_CLK_A55, "a55_root", 0x0100, FAST_SEL, CLK_IS_CRITICAL },
+ { IMX93_CLK_M33, "m33_root", 0x0180, LOW_SPEED_IO_SEL, CLK_IS_CRITICAL },
+ { IMX93_CLK_BUS_WAKEUP, "bus_wakeup_root", 0x0280, LOW_SPEED_IO_SEL, CLK_IS_CRITICAL },
+ { IMX93_CLK_BUS_AON, "bus_aon_root", 0x0300, LOW_SPEED_IO_SEL, CLK_IS_CRITICAL },
+ { IMX93_CLK_WAKEUP_AXI, "wakeup_axi_root", 0x0380, FAST_SEL, CLK_IS_CRITICAL },
+ { IMX93_CLK_SWO_TRACE, "swo_trace_root", 0x0400, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_M33_SYSTICK, "m33_systick_root", 0x0480, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_FLEXIO1, "flexio1_root", 0x0500, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_FLEXIO2, "flexio2_root", 0x0580, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPIT1, "lpit1_root", 0x0600, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPIT2, "lpit2_root", 0x0680, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPTMR1, "lptmr1_root", 0x0700, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPTMR2, "lptmr2_root", 0x0780, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_TPM1, "tpm1_root", 0x0800, TPM_SEL, },
+ { IMX93_CLK_TPM2, "tpm2_root", 0x0880, TPM_SEL, },
+ { IMX93_CLK_TPM3, "tpm3_root", 0x0900, TPM_SEL, },
+ { IMX93_CLK_TPM4, "tpm4_root", 0x0980, TPM_SEL, },
+ { IMX93_CLK_TPM5, "tpm5_root", 0x0a00, TPM_SEL, },
+ { IMX93_CLK_TPM6, "tpm6_root", 0x0a80, TPM_SEL, },
+ { IMX93_CLK_FLEXSPI1, "flexspi1_root", 0x0b00, FAST_SEL, },
+ { IMX93_CLK_CAN1, "can1_root", 0x0b80, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_CAN2, "can2_root", 0x0c00, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPUART1, "lpuart1_root", 0x0c80, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPUART2, "lpuart2_root", 0x0d00, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPUART3, "lpuart3_root", 0x0d80, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPUART4, "lpuart4_root", 0x0e00, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPUART5, "lpuart5_root", 0x0e80, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPUART6, "lpuart6_root", 0x0f00, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPUART7, "lpuart7_root", 0x0f80, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPUART8, "lpuart8_root", 0x1000, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPI2C1, "lpi2c1_root", 0x1080, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPI2C2, "lpi2c2_root", 0x1100, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPI2C3, "lpi2c3_root", 0x1180, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPI2C4, "lpi2c4_root", 0x1200, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPI2C5, "lpi2c5_root", 0x1280, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPI2C6, "lpi2c6_root", 0x1300, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPI2C7, "lpi2c7_root", 0x1380, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPI2C8, "lpi2c8_root", 0x1400, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPSPI1, "lpspi1_root", 0x1480, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPSPI2, "lpspi2_root", 0x1500, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPSPI3, "lpspi3_root", 0x1580, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPSPI4, "lpspi4_root", 0x1600, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPSPI5, "lpspi5_root", 0x1680, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPSPI6, "lpspi6_root", 0x1700, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPSPI7, "lpspi7_root", 0x1780, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_LPSPI8, "lpspi8_root", 0x1800, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_I3C1, "i3c1_root", 0x1880, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_I3C2, "i3c2_root", 0x1900, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_USDHC1, "usdhc1_root", 0x1980, FAST_SEL, },
+ { IMX93_CLK_USDHC2, "usdhc2_root", 0x1a00, FAST_SEL, },
+ { IMX93_CLK_USDHC3, "usdhc3_root", 0x1a80, FAST_SEL, },
+ { IMX93_CLK_SAI1, "sai1_root", 0x1b00, AUDIO_SEL, },
+ { IMX93_CLK_SAI2, "sai2_root", 0x1b80, AUDIO_SEL, },
+ { IMX93_CLK_SAI3, "sai3_root", 0x1c00, AUDIO_SEL, },
+ { IMX93_CLK_CCM_CKO1, "ccm_cko1_root", 0x1c80, CKO1_SEL, },
+ { IMX93_CLK_CCM_CKO2, "ccm_cko2_root", 0x1d00, CKO2_SEL, },
+ { IMX93_CLK_CCM_CKO3, "ccm_cko3_root", 0x1d80, CKO1_SEL, },
+ { IMX93_CLK_CCM_CKO4, "ccm_cko4_root", 0x1e00, CKO2_SEL, },
+ { IMX93_CLK_HSIO, "hsio_root", 0x1e80, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_HSIO_USB_TEST_60M, "hsio_usb_test_60m_root", 0x1f00, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_HSIO_ACSCAN_80M, "hsio_acscan_80m_root", 0x1f80, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_HSIO_ACSCAN_480M, "hsio_acscan_480m_root", 0x2000, MISC_SEL, },
+ { IMX93_CLK_ML_APB, "ml_apb_root", 0x2180, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_ML, "ml_root", 0x2200, FAST_SEL, },
+ { IMX93_CLK_MEDIA_AXI, "media_axi_root", 0x2280, FAST_SEL, },
+ { IMX93_CLK_MEDIA_APB, "media_apb_root", 0x2300, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_MEDIA_LDB, "media_ldb_root", 0x2380, VIDEO_SEL, },
+ { IMX93_CLK_MEDIA_DISP_PIX, "media_disp_pix_root", 0x2400, VIDEO_SEL, },
+ { IMX93_CLK_CAM_PIX, "cam_pix_root", 0x2480, VIDEO_SEL, },
+ { IMX93_CLK_MIPI_TEST_BYTE, "mipi_test_byte_root", 0x2500, VIDEO_SEL, },
+ { IMX93_CLK_MIPI_PHY_CFG, "mipi_phy_cfg_root", 0x2580, VIDEO_SEL, },
+ { IMX93_CLK_ADC, "adc_root", 0x2700, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_PDM, "pdm_root", 0x2780, AUDIO_SEL, },
+ { IMX93_CLK_TSTMR1, "tstmr1_root", 0x2800, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_TSTMR2, "tstmr2_root", 0x2880, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_MQS1, "mqs1_root", 0x2900, AUDIO_SEL, },
+ { IMX93_CLK_MQS2, "mqs2_root", 0x2980, AUDIO_SEL, },
+ { IMX93_CLK_AUDIO_XCVR, "audio_xcvr_root", 0x2a00, NON_IO_SEL, },
+ { IMX93_CLK_SPDIF, "spdif_root", 0x2a80, AUDIO_SEL, },
+ { IMX93_CLK_ENET, "enet_root", 0x2b00, NON_IO_SEL, },
+ { IMX93_CLK_ENET_TIMER1, "enet_timer1_root", 0x2b80, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_ENET_TIMER2, "enet_timer2_root", 0x2c00, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_ENET_REF, "enet_ref_root", 0x2c80, NON_IO_SEL, },
+ { IMX93_CLK_ENET_REF_PHY, "enet_ref_phy_root", 0x2d00, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_I3C1_SLOW, "i3c1_slow_root", 0x2d80, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_I3C2_SLOW, "i3c2_slow_root", 0x2e00, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_USB_PHY_BURUNIN, "usb_phy_root", 0x2e80, LOW_SPEED_IO_SEL, },
+ { IMX93_CLK_PAL_CAME_SCAN, "pal_came_scan_root", 0x2f00, MISC_SEL, }
+};
+
+struct imx93_clk_ccgr {
+ u32 clk;
+ char *name;
+ char *parent_name;
+ u32 off;
+ unsigned long flags;
+} ccgr_array[] = {
+ { IMX93_CLK_A55_GATE, "a55", "a55_root", 0x8000, CLK_IS_CRITICAL },
+ { IMX93_CLK_CM33_GATE, "cm33", "m33_root", 0x8040, CLK_IS_CRITICAL },
+ { IMX93_CLK_ADC1_GATE, "adc1", "osc_24m", 0x82c0, },
+ { IMX93_CLK_WDOG1_GATE, "wdog1", "osc_24m", 0x8300, },
+ { IMX93_CLK_WDOG2_GATE, "wdog2", "osc_24m", 0x8340, },
+ { IMX93_CLK_WDOG3_GATE, "wdog3", "osc_24m", 0x8380, },
+ { IMX93_CLK_WDOG4_GATE, "wdog4", "osc_24m", 0x83c0, },
+ { IMX93_CLK_WDOG5_GATE, "wdog5", "osc_24m", 0x8400, },
+ { IMX93_CLK_SEMA1_GATE, "sema1", "bus_aon_root", 0x8440, },
+ { IMX93_CLK_SEMA2_GATE, "sema2", "bus_wakeup_root", 0x8480, },
+ { IMX93_CLK_MU_A_GATE, "mu_a", "bus_aon_root", 0x84c0, },
+ { IMX93_CLK_MU_B_GATE, "mu_b", "bus_aon_root", 0x8500, },
+ { IMX93_CLK_EDMA1_GATE, "edma1", "wakeup_axi_root", 0x8540, },
+ { IMX93_CLK_EDMA2_GATE, "edma2", "wakeup_axi_root", 0x8580, },
+ { IMX93_CLK_FLEXSPI1_GATE, "flexspi", "flexspi_root", 0x8640, },
+ { IMX93_CLK_GPIO1_GATE, "gpio1", "m33_root", 0x8880, },
+ { IMX93_CLK_GPIO2_GATE, "gpio2", "bus_wakeup_root", 0x88c0, },
+ { IMX93_CLK_GPIO3_GATE, "gpio3", "bus_wakeup_root", 0x8900, },
+ { IMX93_CLK_GPIO4_GATE, "gpio4", "bus_wakeup_root", 0x8940, },
+ { IMX93_CLK_FLEXIO1_GATE, "flexio1", "flexio1_root", 0x8980, },
+ { IMX93_CLK_FLEXIO2_GATE, "flexio2", "flexio2_root", 0x89c0, },
+ { IMX93_CLK_LPIT1_GATE, "lpit1", "lpit1_root", 0x8a00, },
+ { IMX93_CLK_LPIT2_GATE, "lpit2", "lpit2_root", 0x8a40, },
+ { IMX93_CLK_LPTMR1_GATE, "lptmr1", "lptmr1_root", 0x8a80, },
+ { IMX93_CLK_LPTMR2_GATE, "lptmr2", "lptmr2_root", 0x8ac0, },
+ { IMX93_CLK_TPM1_GATE, "tpm1", "tpm1_root", 0x8b00, },
+ { IMX93_CLK_TPM2_GATE, "tpm2", "tpm2_root", 0x8b40, },
+ { IMX93_CLK_TPM3_GATE, "tpm3", "tpm3_root", 0x8b80, },
+ { IMX93_CLK_TPM4_GATE, "tpm4", "tpm4_root", 0x8bc0, },
+ { IMX93_CLK_TPM5_GATE, "tpm5", "tpm5_root", 0x8c00, },
+ { IMX93_CLK_TPM6_GATE, "tpm6", "tpm6_root", 0x8c40, },
+ { IMX93_CLK_CAN1_GATE, "can1", "can1_root", 0x8c80, },
+ { IMX93_CLK_CAN2_GATE, "can2", "can2_root", 0x8cc0, },
+ { IMX93_CLK_LPUART1_GATE, "lpuart1", "lpuart1_root", 0x8d00, },
+ { IMX93_CLK_LPUART2_GATE, "lpuart2", "lpuart2_root", 0x8d40, },
+ { IMX93_CLK_LPUART3_GATE, "lpuart3", "lpuart3_root", 0x8d80, },
+ { IMX93_CLK_LPUART4_GATE, "lpuart4", "lpuart4_root", 0x8dc0, },
+ { IMX93_CLK_LPUART5_GATE, "lpuart5", "lpuart5_root", 0x8e00, },
+ { IMX93_CLK_LPUART6_GATE, "lpuart6", "lpuart6_root", 0x8e40, },
+ { IMX93_CLK_LPUART7_GATE, "lpuart7", "lpuart7_root", 0x8e80, },
+ { IMX93_CLK_LPUART8_GATE, "lpuart8", "lpuart8_root", 0x8ec0, },
+ { IMX93_CLK_LPI2C1_GATE, "lpi2c1", "lpi2c1_root", 0x8f00, },
+ { IMX93_CLK_LPI2C2_GATE, "lpi2c2", "lpi2c2_root", 0x8f40, },
+ { IMX93_CLK_LPI2C3_GATE, "lpi2c3", "lpi2c3_root", 0x8f80, },
+ { IMX93_CLK_LPI2C4_GATE, "lpi2c4", "lpi2c4_root", 0x8fc0, },
+ { IMX93_CLK_LPI2C5_GATE, "lpi2c5", "lpi2c5_root", 0x9000, },
+ { IMX93_CLK_LPI2C6_GATE, "lpi2c6", "lpi2c6_root", 0x9040, },
+ { IMX93_CLK_LPI2C7_GATE, "lpi2c7", "lpi2c7_root", 0x9080, },
+ { IMX93_CLK_LPI2C8_GATE, "lpi2c8", "lpi2c8_root", 0x90c0, },
+ { IMX93_CLK_LPSPI1_GATE, "lpspi1", "lpspi1_root", 0x9100, },
+ { IMX93_CLK_LPSPI2_GATE, "lpspi2", "lpspi2_root", 0x9140, },
+ { IMX93_CLK_LPSPI3_GATE, "lpspi3", "lpspi3_root", 0x9180, },
+ { IMX93_CLK_LPSPI4_GATE, "lpspi4", "lpspi4_root", 0x91c0, },
+ { IMX93_CLK_LPSPI5_GATE, "lpspi5", "lpspi5_root", 0x9200, },
+ { IMX93_CLK_LPSPI6_GATE, "lpspi6", "lpspi6_root", 0x9240, },
+ { IMX93_CLK_LPSPI7_GATE, "lpspi7", "lpspi7_root", 0x9280, },
+ { IMX93_CLK_LPSPI8_GATE, "lpspi8", "lpspi8_root", 0x92c0, },
+ { IMX93_CLK_I3C1_GATE, "i3c1", "i3c1_root", 0x9300, },
+ { IMX93_CLK_I3C2_GATE, "i3c2", "i3c2_root", 0x9340, },
+ { IMX93_CLK_USDHC1_GATE, "usdhc1", "usdhc1_root", 0x9380, },
+ { IMX93_CLK_USDHC2_GATE, "usdhc2", "usdhc2_root", 0x93c0, },
+ { IMX93_CLK_USDHC3_GATE, "usdhc3", "usdhc3_root", 0x9400, },
+ { IMX93_CLK_SAI1_GATE, "sai1", "sai1_root", 0x9440, },
+ { IMX93_CLK_SAI2_GATE, "sai2", "sai2_root", 0x9480, },
+ { IMX93_CLK_SAI3_GATE, "sai3", "sai3_root", 0x94c0, },
+ { IMX93_CLK_MIPI_CSI_GATE, "mipi_csi", "media_apb_root", 0x9580, },
+ { IMX93_CLK_MIPI_DSI_GATE, "mipi_dsi", "media_apb_root", 0x95c0, },
+ { IMX93_CLK_LVDS_GATE, "lvds", "media_ldb_root", 0x9600, },
+ { IMX93_CLK_LCDIF_GATE, "lcdif", "media_apb_root", 0x9640, },
+ { IMX93_CLK_PXP_GATE, "pxp", "media_apb_root", 0x9680, },
+ { IMX93_CLK_ISI_GATE, "isi", "media_apb_root", 0x96c0, },
+ { IMX93_CLK_NIC_MEDIA_GATE, "nic_media", "media_apb_root", 0x9700, },
+ { IMX93_CLK_USB_CONTROLLER_GATE, "usb_controller", "hsio_root", 0x9a00, },
+ { IMX93_CLK_USB_TEST_60M_GATE, "usb_test_60m", "hsio_usb_test_60m_root", 0x9a40, },
+ { IMX93_CLK_HSIO_TROUT_24M_GATE, "hsio_trout_24m", "osc_24m", 0x9a80, },
+ { IMX93_CLK_PDM_GATE, "pdm", "pdm_root", 0x9ac0, },
+ { IMX93_CLK_MQS1_GATE, "mqs1", "sai1_root", 0x9b00, },
+ { IMX93_CLK_MQS2_GATE, "mqs2", "sai3_root", 0x9b40, },
+ { IMX93_CLK_AUD_XCVR_GATE, "aud_xcvr", "audio_xcvr_root", 0x9b80, },
+ { IMX93_CLK_SPDIF_GATE, "spdif", "spdif_root", 0x9c00, },
+ { IMX93_CLK_HSIO_32K_GATE, "hsio_32k", "osc_32k", 0x9dc0, },
+ { IMX93_CLK_ENET1_GATE, "enet1", "enet_root", 0x9e00, },
+ { IMX93_CLK_ENET_QOS_GATE, "enet_qos", "wakeup_axi_root", 0x9e40, },
+ { IMX93_CLK_SYS_CNT_GATE, "sys_cnt", "osc_24m", 0x9e80, },
+ { IMX93_CLK_TSTMR1_GATE, "tstmr1", "bus_aon_root", 0x9ec0, },
+ { IMX93_CLK_TSTMR2_GATE, "tstmr2", "bus_wakeup_root", 0x9f00, },
+ { IMX93_CLK_TMC_GATE, "tmc", "osc_24m", 0x9f40, },
+ { IMX93_CLK_PMRO_GATE, "pmro", "osc_24m", 0x9f80, }
+};
+
+static struct clk_hw_onecell_data *clk_hw_data;
+static struct clk_hw **clks;
+
+static int imx93_clocks_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct imx93_clk_root *root;
+ struct imx93_clk_ccgr *ccgr;
+ void __iomem *base = NULL;
+ int i, ret;
+
+ clk_hw_data = kzalloc(struct_size(clk_hw_data, hws,
+ IMX93_CLK_END), GFP_KERNEL);
+ if (WARN_ON(!clk_hw_data))
+ return -ENOMEM;
+
+ clk_hw_data->num = IMX93_CLK_END;
+ clks = clk_hw_data->hws;
+
+ clks[IMX93_CLK_DUMMY] = imx_clk_hw_fixed("dummy", 0);
+ clks[IMX93_CLK_24M] = imx_obtain_fixed_clk_hw(np, "osc_24m");
+ clks[IMX93_CLK_32K] = imx_obtain_fixed_clk_hw(np, "osc_32k");
+ clks[IMX93_CLK_EXT1] = imx_obtain_fixed_clk_hw(np, "clk_ext1");
+
+ clks[IMX93_CLK_SYS_PLL_PFD0] = imx_clk_hw_fixed("sys_pll_pfd0", 1000000000);
+ clks[IMX93_CLK_SYS_PLL_PFD0_DIV2] = imx_clk_hw_fixed_factor("sys_pll_pfd0_div2",
+ "sys_pll_pfd0", 1, 2);
+ clks[IMX93_CLK_SYS_PLL_PFD1] = imx_clk_hw_fixed("sys_pll_pfd1", 800000000);
+ clks[IMX93_CLK_SYS_PLL_PFD1_DIV2] = imx_clk_hw_fixed_factor("sys_pll_pfd1_div2",
+ "sys_pll_pfd1", 1, 2);
+ clks[IMX93_CLK_SYS_PLL_PFD2] = imx_clk_hw_fixed("sys_pll_pfd2", 625000000);
+ clks[IMX93_CLK_SYS_PLL_PFD2_DIV2] = imx_clk_hw_fixed_factor("sys_pll_pfd2_div2",
+ "sys_pll_pfd2", 1, 2);
+
+ np = of_find_compatible_node(NULL, NULL, "fsl,imx93-anatop");
+ base = of_iomap(np, 0);
+ of_node_put(np);
+ if (WARN_ON(!base))
+ return -ENOMEM;
+
+ clks[IMX93_CLK_AUDIO_PLL] = imx_clk_fracn_gppll("audio_pll", "osc_24m", base + 0x1200,
+ &imx_fracn_gppll);
+ clks[IMX93_CLK_VIDEO_PLL] = imx_clk_fracn_gppll("video_pll", "osc_24m", base + 0x1400,
+ &imx_fracn_gppll);
+
+ np = dev->of_node;
+ base = devm_platform_ioremap_resource(pdev, 0);
+ if (WARN_ON(IS_ERR(base)))
+ return PTR_ERR(base);
+
+ for (i = 0; i < ARRAY_SIZE(root_array); i++) {
+ root = &root_array[i];
+ clks[root->clk] = imx93_clk_composite_flags(root->name,
+ parent_names[root->sel],
+ 4, base + root->off,
+ root->flags);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(ccgr_array); i++) {
+ ccgr = &ccgr_array[i];
+ clks[ccgr->clk] = imx_clk_hw_gate4_flags(ccgr->name,
+ ccgr->parent_name,
+ base + ccgr->off, 0,
+ ccgr->flags);
+ }
+
+ imx_check_clk_hws(clks, IMX93_CLK_END);
+
+ ret = of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_hw_data);
+ if (ret < 0) {
+ dev_err(dev, "failed to register clks for i.MX93\n");
+ goto unregister_hws;
+ }
+
+ return 0;
+
+unregister_hws:
+ imx_unregister_hw_clocks(clks, IMX93_CLK_END);
+
+ return ret;
+}
+
+static const struct of_device_id imx93_clk_of_match[] = {
+ { .compatible = "fsl,imx93-ccm" },
+ { /* Sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, imx93_clk_of_match);
+
+static struct platform_driver imx93_clk_driver = {
+ .probe = imx93_clocks_probe,
+ .driver = {
+ .name = "imx93-ccm",
+ .suppress_bind_attrs = true,
+ .of_match_table = of_match_ptr(imx93_clk_of_match),
+ },
+};
+module_platform_driver(imx93_clk_driver);
--
2.25.1
On Thu, 24 Feb 2022 16:22:47 +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <[email protected]>
>
> Add the clock dt-binding file for i.MX93.
>
> Reviewed-by: Abel Vesa <[email protected]>
> Signed-off-by: Peng Fan <[email protected]>
> ---
> .../bindings/clock/imx93-clock.yaml | 62 +++++++++++++++++++
> 1 file changed, 62 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/clock/imx93-clock.yaml
>
Reviewed-by: Rob Herring <[email protected]>