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The skeleton code includes: 1. common utility code for clk_ops implementation 2. basic probe code of the whole driver 3. helper structure for clk definition Signed-off-by: Inochi Amaoto --- drivers/clk/Kconfig | 1 + drivers/clk/Makefile | 1 + drivers/clk/sophgo/Kconfig | 12 ++ drivers/clk/sophgo/Makefile | 7 + drivers/clk/sophgo/clk-cv1800.c | 113 +++++++++++ drivers/clk/sophgo/clk-cv18xx-common.c | 66 +++++++ drivers/clk/sophgo/clk-cv18xx-common.h | 81 ++++++++ drivers/clk/sophgo/clk-cv18xx-ip.c | 98 ++++++++++ drivers/clk/sophgo/clk-cv18xx-ip.h | 261 +++++++++++++++++++++++++ drivers/clk/sophgo/clk-cv18xx-pll.c | 34 ++++ drivers/clk/sophgo/clk-cv18xx-pll.h | 118 +++++++++++ 11 files changed, 792 insertions(+) create mode 100644 drivers/clk/sophgo/Kconfig create mode 100644 drivers/clk/sophgo/Makefile create mode 100644 drivers/clk/sophgo/clk-cv1800.c create mode 100644 drivers/clk/sophgo/clk-cv18xx-common.c create mode 100644 drivers/clk/sophgo/clk-cv18xx-common.h create mode 100644 drivers/clk/sophgo/clk-cv18xx-ip.c create mode 100644 drivers/clk/sophgo/clk-cv18xx-ip.h create mode 100644 drivers/clk/sophgo/clk-cv18xx-pll.c create mode 100644 drivers/clk/sophgo/clk-cv18xx-pll.h -- 2.43.0 diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index 50af5fc7f570..bc28502ec3c9 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -489,6 +489,7 @@ source "drivers/clk/rockchip/Kconfig" source "drivers/clk/samsung/Kconfig" source "drivers/clk/sifive/Kconfig" source "drivers/clk/socfpga/Kconfig" +source "drivers/clk/sophgo/Kconfig" source "drivers/clk/sprd/Kconfig" source "drivers/clk/starfive/Kconfig" source "drivers/clk/sunxi/Kconfig" diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index 14fa8d4ecc1f..4abe16c8ccdf 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -118,6 +118,7 @@ obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip/ obj-$(CONFIG_COMMON_CLK_SAMSUNG) += samsung/ obj-$(CONFIG_CLK_SIFIVE) += sifive/ obj-y += socfpga/ +obj-y += sophgo/ obj-$(CONFIG_PLAT_SPEAR) += spear/ obj-y += sprd/ obj-$(CONFIG_ARCH_STI) += st/ diff --git a/drivers/clk/sophgo/Kconfig b/drivers/clk/sophgo/Kconfig new file mode 100644 index 000000000000..d67009fa749f --- /dev/null +++ b/drivers/clk/sophgo/Kconfig @@ -0,0 +1,12 @@ +# SPDX-License-Identifier: GPL-2.0 +# common clock support for SOPHGO SoC family. + +config CLK_SOPHGO_CV1800 + tristate "Support for the Sophgo CV1800 series SoCs clock controller" + default m + depends on ARCH_SOPHGO || COMPILE_TEST + help + This driver supports clock controller of Sophgo CV18XX series SoC. + The driver require a 25MHz Oscillator to function generate clock. + It includes PLLs, common clock function and some vendor clock for + IPs of CV18XX series SoC diff --git a/drivers/clk/sophgo/Makefile b/drivers/clk/sophgo/Makefile new file mode 100644 index 000000000000..a50320764200 --- /dev/null +++ b/drivers/clk/sophgo/Makefile @@ -0,0 +1,7 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_CLK_SOPHGO_CV1800) += clk-sophgo-cv1800.o + +clk-sophgo-cv1800-y += clk-cv1800.o +clk-sophgo-cv1800-y += clk-cv18xx-common.o +clk-sophgo-cv1800-y += clk-cv18xx-ip.o +clk-sophgo-cv1800-y += clk-cv18xx-pll.o diff --git a/drivers/clk/sophgo/clk-cv1800.c b/drivers/clk/sophgo/clk-cv1800.c new file mode 100644 index 000000000000..7183e67f20bf --- /dev/null +++ b/drivers/clk/sophgo/clk-cv1800.c @@ -0,0 +1,113 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2023 Inochi Amaoto + */ + +#include +#include +#include +#include +#include + +#include "clk-cv18xx-common.h" + +struct cv1800_clk_ctrl; + +struct cv1800_clk_desc { + struct clk_hw_onecell_data *clks_data; + + int (*pre_init)(struct device *dev, void __iomem *base, + struct cv1800_clk_ctrl *ctrl, + const struct cv1800_clk_desc *desc); +}; + +struct cv1800_clk_ctrl { + const struct cv1800_clk_desc *desc; + spinlock_t lock; +}; + +static int cv1800_clk_init_ctrl(struct device *dev, void __iomem *reg, + struct cv1800_clk_ctrl *ctrl, + const struct cv1800_clk_desc *desc) +{ + int i, ret; + + ctrl->desc = desc; + spin_lock_init(&ctrl->lock); + + for (i = 0; i < desc->clks_data->num; i++) { + struct clk_hw *hw = desc->clks_data->hws[i]; + struct cv1800_clk_common *common; + const char *name; + + if (!hw) + continue; + + name = hw->init->name; + + common = hw_to_cv1800_clk_common(hw); + common->base = reg; + common->lock = &ctrl->lock; + + ret = devm_clk_hw_register(dev, hw); + if (ret) { + dev_err(dev, "Couldn't register clock %d - %s\n", + i, name); + return ret; + } + } + + ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, + desc->clks_data); + + return ret; +} + +static int cv1800_clk_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + void __iomem *reg; + int ret; + const struct cv1800_clk_desc *desc; + struct cv1800_clk_ctrl *ctrl; + + reg = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(reg)) + return PTR_ERR(reg); + + desc = device_get_match_data(dev); + if (!desc) { + dev_err(dev, "no match data for platform\n"); + return -EINVAL; + } + + ctrl = devm_kmalloc(dev, sizeof(*ctrl), GFP_KERNEL); + if (!ctrl) + return -ENOMEM; + + if (desc->pre_init) { + ret = desc->pre_init(dev, reg, ctrl, desc); + if (ret) + return ret; + } + + ret = cv1800_clk_init_ctrl(dev, reg, ctrl, desc); + + return ret; +} + +static const struct of_device_id cv1800_clk_ids[] = { + { } +}; +MODULE_DEVICE_TABLE(of, cv1800_clk_ids); + +static struct platform_driver cv1800_clk_driver = { + .probe = cv1800_clk_probe, + .driver = { + .name = "cv1800-clk", + .suppress_bind_attrs = true, + .of_match_table = cv1800_clk_ids, + }, +}; +module_platform_driver(cv1800_clk_driver); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/sophgo/clk-cv18xx-common.c b/drivers/clk/sophgo/clk-cv18xx-common.c new file mode 100644 index 000000000000..cbcdd88f0e23 --- /dev/null +++ b/drivers/clk/sophgo/clk-cv18xx-common.c @@ -0,0 +1,66 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2023 Inochi Amaoto + */ + +#include +#include +#include +#include + +#include "clk-cv18xx-common.h" + +int cv1800_clk_setbit(struct cv1800_clk_common *common, + struct cv1800_clk_regbit *field) +{ + u32 mask = BIT(field->shift); + u32 value; + unsigned long flags; + + spin_lock_irqsave(common->lock, flags); + + value = readl(common->base + field->reg); + writel(value | mask, common->base + field->reg); + + spin_unlock_irqrestore(common->lock, flags); + + return 0; +} + +int cv1800_clk_clearbit(struct cv1800_clk_common *common, + struct cv1800_clk_regbit *field) +{ + u32 mask = BIT(field->shift); + u32 value; + unsigned long flags; + + spin_lock_irqsave(common->lock, flags); + + value = readl(common->base + field->reg); + writel(value & ~mask, common->base + field->reg); + + spin_unlock_irqrestore(common->lock, flags); + + return 0; +} + +int cv1800_clk_checkbit(struct cv1800_clk_common *common, + struct cv1800_clk_regbit *field) +{ + return readl(common->base + field->reg) & BIT(field->shift); +} + +#define PLL_LOCK_TIMEOUT_US (200 * 1000) + +void cv1800_clk_wait_for_lock(struct cv1800_clk_common *common, + u32 reg, u32 lock) +{ + void __iomem *addr = common->base + reg; + u32 regval; + + if (!lock) + return; + + WARN_ON(readl_relaxed_poll_timeout(addr, regval, regval & lock, + 100, PLL_LOCK_TIMEOUT_US)); +} diff --git a/drivers/clk/sophgo/clk-cv18xx-common.h b/drivers/clk/sophgo/clk-cv18xx-common.h new file mode 100644 index 000000000000..2bfda02b2064 --- /dev/null +++ b/drivers/clk/sophgo/clk-cv18xx-common.h @@ -0,0 +1,81 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2023 Inochi Amaoto + */ + +#ifndef _CLK_SOPHGO_CV18XX_IP_H_ +#define _CLK_SOPHGO_CV18XX_IP_H_ + +#include +#include +#include + +struct cv1800_clk_common { + void __iomem *base; + spinlock_t *lock; + struct clk_hw hw; + unsigned long features; +}; + +#define CV1800_CLK_COMMON(_name, _parents, _op, _flags) \ + { \ + .hw.init = CLK_HW_INIT_PARENTS_DATA(_name, _parents, \ + _op, _flags), \ + } + +static inline struct cv1800_clk_common * +hw_to_cv1800_clk_common(struct clk_hw *hw) +{ + return container_of(hw, struct cv1800_clk_common, hw); +} + +struct cv1800_clk_regbit { + u16 reg; + s8 shift; +}; + +struct cv1800_clk_regfield { + u16 reg; + u8 shift; + u8 width; + s16 initval; + unsigned long flags; +}; + +#define CV1800_CLK_BIT(_reg, _shift) \ + { \ + .reg = _reg, \ + .shift = _shift, \ + } + +#define CV1800_CLK_REG(_reg, _shift, _width, _initval, _flags) \ + { \ + .reg = _reg, \ + .shift = _shift, \ + .width = _width, \ + .initval = _initval, \ + .flags = _flags, \ + } + +#define cv1800_clk_regfield_genmask(_reg) \ + GENMASK((_reg)->shift + (_reg)->width - 1, (_reg)->shift) +#define cv1800_clk_regfield_get(_val, _reg) \ + (((_val) >> (_reg)->shift) & GENMASK((_reg)->width - 1, 0)) +#define cv1800_clk_regfield_set(_val, _new, _reg) \ + (((_val) & ~cv1800_clk_regfield_genmask((_reg))) | \ + (((_new) & GENMASK((_reg)->width - 1, 0)) << (_reg)->shift)) + +#define _CV1800_SET_FIELD(_reg, _val, _field) \ + (((_reg) & ~(_field)) | FIELD_PREP((_field), (_val))) + +int cv1800_clk_setbit(struct cv1800_clk_common *common, + struct cv1800_clk_regbit *field); +int cv1800_clk_clearbit(struct cv1800_clk_common *common, + struct cv1800_clk_regbit *field); +int cv1800_clk_checkbit(struct cv1800_clk_common *common, + struct cv1800_clk_regbit *field); + +void cv1800_clk_wait_for_lock(struct cv1800_clk_common *common, + u32 reg, u32 lock); + +#endif // _CLK_SOPHGO_CV18XX_IP_H_ diff --git a/drivers/clk/sophgo/clk-cv18xx-ip.c b/drivers/clk/sophgo/clk-cv18xx-ip.c new file mode 100644 index 000000000000..cd397d102442 --- /dev/null +++ b/drivers/clk/sophgo/clk-cv18xx-ip.c @@ -0,0 +1,98 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2023 Inochi Amaoto + */ + +#include +#include +#include +#include + +#include "clk-cv18xx-ip.h" + +/* GATE */ +const struct clk_ops cv1800_clk_gate_ops = { + .disable = NULL, + .enable = NULL, + .is_enabled = NULL, + + .recalc_rate = NULL, + .round_rate = NULL, + .set_rate = NULL, +}; + +/* DIV */ +const struct clk_ops cv1800_clk_div_ops = { + .disable = NULL, + .enable = NULL, + .is_enabled = NULL, + + .determine_rate = NULL, + .recalc_rate = NULL, + .set_rate = NULL, +}; + +const struct clk_ops cv1800_clk_bypass_div_ops = { + .disable = NULL, + .enable = NULL, + .is_enabled = NULL, + + .determine_rate = NULL, + .recalc_rate = NULL, + .set_rate = NULL, + + .set_parent = NULL, + .get_parent = NULL, +}; + +/* MUX */ +const struct clk_ops cv1800_clk_mux_ops = { + .disable = NULL, + .enable = NULL, + .is_enabled = NULL, + + .determine_rate = NULL, + .recalc_rate = NULL, + .set_rate = NULL, + + .set_parent = NULL, + .get_parent = NULL, +}; + +const struct clk_ops cv1800_clk_bypass_mux_ops = { + .disable = NULL, + .enable = NULL, + .is_enabled = NULL, + + .determine_rate = NULL, + .recalc_rate = NULL, + .set_rate = NULL, + + .set_parent = NULL, + .get_parent = NULL, +}; + +/* MMUX */ +const struct clk_ops cv1800_clk_mmux_ops = { + .disable = NULL, + .enable = NULL, + .is_enabled = NULL, + + .determine_rate = NULL, + .recalc_rate = NULL, + .set_rate = NULL, + + .set_parent = NULL, + .get_parent = NULL, +}; + +/* AUDIO CLK */ +const struct clk_ops cv1800_clk_audio_ops = { + .disable = NULL, + .enable = NULL, + .is_enabled = NULL, + + .determine_rate = NULL, + .recalc_rate = NULL, + .set_rate = NULL, +}; diff --git a/drivers/clk/sophgo/clk-cv18xx-ip.h b/drivers/clk/sophgo/clk-cv18xx-ip.h new file mode 100644 index 000000000000..b37ba42bfde3 --- /dev/null +++ b/drivers/clk/sophgo/clk-cv18xx-ip.h @@ -0,0 +1,261 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2023 Inochi Amaoto + */ + +#ifndef _CLK_SOPHGO_CV1800_IP_H_ +#define _CLK_SOPHGO_CV1800_IP_H_ + +#include "clk-cv18xx-common.h" + +struct cv1800_clk_gate { + struct cv1800_clk_common common; + struct cv1800_clk_regbit gate; +}; + +struct cv1800_clk_div_data { + u32 reg; + u32 mask; + u32 width; + u32 init; + u32 flags; +}; + +struct cv1800_clk_div { + struct cv1800_clk_common common; + struct cv1800_clk_regbit gate; + struct cv1800_clk_regfield div; +}; + +struct cv1800_clk_bypass_div { + struct cv1800_clk_div div; + struct cv1800_clk_regbit bypass; +}; + +struct cv1800_clk_mux { + struct cv1800_clk_common common; + struct cv1800_clk_regbit gate; + struct cv1800_clk_regfield div; + struct cv1800_clk_regfield mux; +}; + +struct cv1800_clk_bypass_mux { + struct cv1800_clk_mux mux; + struct cv1800_clk_regbit bypass; +}; + +struct cv1800_clk_mmux { + struct cv1800_clk_common common; + struct cv1800_clk_regbit gate; + struct cv1800_clk_regfield div[2]; + struct cv1800_clk_regfield mux[2]; + struct cv1800_clk_regbit bypass; + struct cv1800_clk_regbit clk_sel; + const s8 *parent2sel; + const u8 *sel2parent[2]; +}; + +struct cv1800_clk_audio { + struct cv1800_clk_common common; + struct cv1800_clk_regbit src_en; + struct cv1800_clk_regbit output_en; + struct cv1800_clk_regbit div_en; + struct cv1800_clk_regbit div_up; + struct cv1800_clk_regfield m; + struct cv1800_clk_regfield n; + u32 target_rate; +}; + +#define CV1800_GATE(_name, _parent, _gate_reg, _gate_shift, _flags) \ + struct cv1800_clk_gate _name = { \ + .common = CV1800_CLK_COMMON(#_name, _parent, \ + &cv1800_clk_gate_ops, \ + _flags), \ + .gate = CV1800_CLK_BIT(_gate_reg, _gate_shift), \ + } + +#define _CV1800_DIV(_name, _parent, _gate_reg, _gate_shift, \ + _div_reg, _div_shift, _div_width, _div_init, \ + _div_flag, _ops, _flags) \ + { \ + .common = CV1800_CLK_COMMON(#_name, _parent, \ + _ops, _flags), \ + .gate = CV1800_CLK_BIT(_gate_reg, \ + _gate_shift), \ + .div = CV1800_CLK_REG(_div_reg, _div_shift, \ + _div_width, _div_init, \ + _div_flag), \ + } + +#define _CV1800_FIXED_DIV_FLAG \ + (CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ROUND_CLOSEST) + +#define _CV1800_FIXED_DIV(_name, _parent, _gate_reg, _gate_shift, \ + _fix_div, _ops, _flags) \ + { \ + .common = CV1800_CLK_COMMON(#_name, _parent, \ + _ops, _flags), \ + .gate = CV1800_CLK_BIT(_gate_reg, \ + _gate_shift), \ + .div = CV1800_CLK_REG(0, 0, 0, \ + _fix_div, \ + _CV1800_FIXED_DIV_FLAG),\ + } + +#define CV1800_DIV(_name, _parent, _gate_reg, _gate_shift, \ + _div_reg, _div_shift, _div_width, _div_init, \ + _div_flag, _flags) \ + struct cv1800_clk_div _name = \ + _CV1800_DIV(_name, _parent, _gate_reg, _gate_shift, \ + _div_reg, _div_shift, _div_width, _div_init,\ + _div_flag, &cv1800_clk_div_ops, _flags) + +#define CV1800_BYPASS_DIV(_name, _parent, _gate_reg, _gate_shift, \ + _div_reg, _div_shift, _div_width, _div_init, \ + _div_flag, _bypass_reg, _bypass_shift, _flags)\ + struct cv1800_clk_bypass_div _name = { \ + .div = _CV1800_DIV(_name, _parent, \ + _gate_reg, _gate_shift, \ + _div_reg, _div_shift, \ + _div_width, _div_init, _div_flag, \ + &cv1800_clk_bypass_div_ops, \ + _flags), \ + .bypass = CV1800_CLK_BIT(_bypass_reg, _bypass_shift), \ + } + +#define CV1800_FIXED_DIV(_name, _parent, _gate_reg, _gate_shift, \ + _fix_div, _flags) \ + struct cv1800_clk_div _name = \ + _CV1800_FIXED_DIV(_name, _parent, \ + _gate_reg, _gate_shift, \ + _fix_div, \ + &cv1800_clk_div_ops, _flags) \ + +#define CV1800_BYPASS_FIXED_DIV(_name, _parent, _gate_reg, _gate_shift, \ + _fix_div, _bypass_reg, _bypass_shift, \ + _flags) \ + struct cv1800_clk_bypass_div _name = { \ + .div = _CV1800_FIXED_DIV(_name, _parent, \ + _gate_reg, _gate_shift, \ + _fix_div, \ + &cv1800_clk_bypass_div_ops, \ + _flags), \ + .bypass = CV1800_CLK_BIT(_bypass_reg, _bypass_shift), \ + } + +#define _CV1800_MUX(_name, _parent, _gate_reg, _gate_shift, \ + _div_reg, _div_shift, _div_width, _div_init, \ + _div_flag, \ + _mux_reg, _mux_shift, _mux_width, \ + _ops, _flags) \ + { \ + .common = CV1800_CLK_COMMON(#_name, _parent, \ + _ops, _flags), \ + .gate = CV1800_CLK_BIT(_gate_reg, \ + _gate_shift), \ + .div = CV1800_CLK_REG(_div_reg, _div_shift, \ + _div_width, _div_init, \ + _div_flag), \ + .mux = CV1800_CLK_REG(_mux_reg, _mux_shift, \ + _mux_width, 0, 0), \ + } + +#define CV1800_MUX(_name, _parent, _gate_reg, _gate_shift, \ + _div_reg, _div_shift, _div_width, _div_init, \ + _div_flag, \ + _mux_reg, _mux_shift, _mux_width, _flags) \ + struct cv1800_clk_mux _name = \ + _CV1800_MUX(_name, _parent, _gate_reg, _gate_shift, \ + _div_reg, _div_shift, _div_width, _div_init,\ + _div_flag, _mux_reg, _mux_shift, _mux_width,\ + &cv1800_clk_mux_ops, _flags) + +#define CV1800_BYPASS_MUX(_name, _parent, _gate_reg, _gate_shift, \ + _div_reg, _div_shift, _div_width, _div_init, \ + _div_flag, \ + _mux_reg, _mux_shift, _mux_width, \ + _bypass_reg, _bypass_shift, _flags) \ + struct cv1800_clk_bypass_mux _name = { \ + .mux = _CV1800_MUX(_name, _parent, \ + _gate_reg, _gate_shift, \ + _div_reg, _div_shift, _div_width, \ + _div_init, _div_flag, \ + _mux_reg, _mux_shift, _mux_width, \ + &cv1800_clk_bypass_mux_ops, \ + _flags), \ + .bypass = CV1800_CLK_BIT(_bypass_reg, _bypass_shift), \ + } + +#define CV1800_MMUX(_name, _parent, _gate_reg, _gate_shift, \ + _div0_reg, _div0_shift, _div0_width, _div0_init, \ + _div0_flag, \ + _div1_reg, _div1_shift, _div1_width, _div1_init, \ + _div1_flag, \ + _mux0_reg, _mux0_shift, _mux0_width, \ + _mux1_reg, _mux1_shift, _mux1_width, \ + _bypass_reg, _bypass_shift, \ + _clk_sel_reg, _clk_sel_shift, \ + _parent2sel, _sel2parent0, _sel2parent1, _flags) \ + struct cv1800_clk_mmux _name = { \ + .common = CV1800_CLK_COMMON(#_name, _parent, \ + &cv1800_clk_mmux_ops,\ + _flags), \ + .gate = CV1800_CLK_BIT(_gate_reg, _gate_shift),\ + .div = { \ + CV1800_CLK_REG(_div0_reg, _div0_shift, \ + _div0_width, _div0_init, \ + _div0_flag), \ + CV1800_CLK_REG(_div1_reg, _div1_shift, \ + _div1_width, _div1_init, \ + _div1_flag), \ + }, \ + .mux = { \ + CV1800_CLK_REG(_mux0_reg, _mux0_shift, \ + _mux0_width, 0, 0), \ + CV1800_CLK_REG(_mux1_reg, _mux1_shift, \ + _mux1_width, 0, 0), \ + }, \ + .bypass = CV1800_CLK_BIT(_bypass_reg, \ + _bypass_shift), \ + .clk_sel = CV1800_CLK_BIT(_clk_sel_reg, \ + _clk_sel_shift), \ + .parent2sel = _parent2sel, \ + .sel2parent = { _sel2parent0, _sel2parent1 }, \ + } + +#define CV1800_ACLK(_name, _parent, \ + _src_en_reg, _src_en_reg_shift, \ + _output_en_reg, _output_en_shift, \ + _div_en_reg, _div_en_reg_shift, \ + _div_up_reg, _div_up_reg_shift, \ + _m_reg, _m_shift, _m_width, _m_flag, \ + _n_reg, _n_shift, _n_width, _n_flag, \ + _target_rate, _flags) \ + struct cv1800_clk_audio _name = { \ + .common = CV1800_CLK_COMMON(#_name, _parent, \ + &cv1800_clk_audio_ops,\ + _flags), \ + .src_en = CV1800_CLK_BIT(_src_en_reg, \ + _src_en_reg_shift), \ + .output_en = CV1800_CLK_BIT(_output_en_reg, \ + _output_en_shift), \ + .div_en = CV1800_CLK_BIT(_div_en_reg, \ + _div_en_reg_shift), \ + .div_up = CV1800_CLK_BIT(_div_up_reg, \ + _div_up_reg_shift), \ + .m = CV1800_CLK_REG(_m_reg, _m_shift, \ + _m_width, 0, _m_flag), \ + .n = CV1800_CLK_REG(_n_reg, _n_shift, \ + _n_width, 0, _n_flag), \ + .target_rate = _target_rate, \ + } + +extern const struct clk_ops cv1800_clk_gate_ops; +extern const struct clk_ops cv1800_clk_div_ops; +extern const struct clk_ops cv1800_clk_bypass_div_ops; +extern const struct clk_ops cv1800_clk_mux_ops; +extern const struct clk_ops cv1800_clk_bypass_mux_ops; +extern const struct clk_ops cv1800_clk_mmux_ops; +extern const struct clk_ops cv1800_clk_audio_ops; + +#endif // _CLK_SOPHGO_CV1800_IP_H_ diff --git a/drivers/clk/sophgo/clk-cv18xx-pll.c b/drivers/clk/sophgo/clk-cv18xx-pll.c new file mode 100644 index 000000000000..345bb5e27cfd --- /dev/null +++ b/drivers/clk/sophgo/clk-cv18xx-pll.c @@ -0,0 +1,34 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2023 Inochi Amaoto + */ + +#include +#include +#include +#include + +#include "clk-cv18xx-pll.h" + +const struct clk_ops cv1800_clk_ipll_ops = { + .disable = NULL, + .enable = NULL, + .is_enabled = NULL, + + .recalc_rate = NULL, + .determine_rate = NULL, + .set_rate = NULL, +}; + +const struct clk_ops cv1800_clk_fpll_ops = { + .disable = NULL, + .enable = NULL, + .is_enabled = NULL, + + .recalc_rate = NULL, + .determine_rate = NULL, + .set_rate = NULL, + + .set_parent = NULL, + .get_parent = NULL, +}; diff --git a/drivers/clk/sophgo/clk-cv18xx-pll.h b/drivers/clk/sophgo/clk-cv18xx-pll.h new file mode 100644 index 000000000000..7a33f3da2d64 --- /dev/null +++ b/drivers/clk/sophgo/clk-cv18xx-pll.h @@ -0,0 +1,118 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2023 Inochi Amaoto + */ + +#ifndef _CLK_SOPHGO_CV1800_PLL_H_ +#define _CLK_SOPHGO_CV1800_PLL_H_ + +#include "clk-cv18xx-common.h" + +struct cv1800_clk_pll_limit { + struct { + u8 min; + u8 max; + } pre_div, div, post_div, ictrl, mode; +}; + +#define _CV1800_PLL_LIMIT(_min, _max) \ + { \ + .min = _min, \ + .max = _max, \ + } \ + +#define for_each_pll_limit_range(_var, _restrict) \ + for (_var = (_restrict)->min; _var <= (_restrict)->max; _var++) + +struct cv1800_clk_pll_synthesizer { + struct cv1800_clk_regbit en; + struct cv1800_clk_regbit clk_half; + u32 ctrl; + u32 set; +}; + +#define _PLL_PRE_DIV_SEL_FIELD GENMASK(6, 0) +#define _PLL_POST_DIV_SEL_FIELD GENMASK(14, 8) +#define _PLL_SEL_MODE_FIELD GENMASK(16, 15) +#define _PLL_DIV_SEL_FIELD GENMASK(23, 17) +#define _PLL_ICTRL_FIELD GENMASK(26, 24) + +#define _PLL_ALL_FIELD_MASK \ + (_PLL_PRE_DIV_SEL_FIELD | \ + _PLL_POST_DIV_SEL_FIELD | \ + _PLL_SEL_MODE_FIELD | \ + _PLL_DIV_SEL_FIELD | \ + _PLL_ICTRL_FIELD) + +#define PLL_COPY_REG(_dest, _src) \ + (((_dest) & (~_PLL_ALL_FIELD_MASK)) | ((_src) & _PLL_ALL_FIELD_MASK)) + +#define PLL_GET_PRE_DIV_SEL(_reg) \ + FIELD_GET(_PLL_PRE_DIV_SEL_FIELD, (_reg)) +#define PLL_GET_POST_DIV_SEL(_reg) \ + FIELD_GET(_PLL_POST_DIV_SEL_FIELD, (_reg)) +#define PLL_GET_SEL_MODE(_reg) \ + FIELD_GET(_PLL_SEL_MODE_FIELD, (_reg)) +#define PLL_GET_DIV_SEL(_reg) \ + FIELD_GET(_PLL_DIV_SEL_FIELD, (_reg)) +#define PLL_GET_ICTRL(_reg) \ + FIELD_GET(_PLL_ICTRL_FIELD, (_reg)) + +#define PLL_SET_PRE_DIV_SEL(_reg, _val) \ + _CV1800_SET_FIELD((_reg), (_val), _PLL_PRE_DIV_SEL_FIELD) +#define PLL_SET_POST_DIV_SEL(_reg, _val) \ + _CV1800_SET_FIELD((_reg), (_val), _PLL_POST_DIV_SEL_FIELD) +#define PLL_SET_SEL_MODE(_reg, _val) \ + _CV1800_SET_FIELD((_reg), (_val), _PLL_SEL_MODE_FIELD) +#define PLL_SET_DIV_SEL(_reg, _val) \ + _CV1800_SET_FIELD((_reg), (_val), _PLL_DIV_SEL_FIELD) +#define PLL_SET_ICTRL(_reg, _val) \ + _CV1800_SET_FIELD((_reg), (_val), _PLL_ICTRL_FIELD) + +struct cv1800_clk_pll { + struct cv1800_clk_common common; + u32 pll_reg; + struct cv1800_clk_regbit pll_pwd; + struct cv1800_clk_regbit pll_status; + const struct cv1800_clk_pll_limit *pll_limit; + struct cv1800_clk_pll_synthesizer *pll_syn; +}; + +#define CV1800_INTEGRAL_PLL(_name, _parent, _pll_reg, \ + _pll_pwd_reg, _pll_pwd_shift, \ + _pll_status_reg, _pll_status_shift, \ + _pll_limit, _flags) \ + struct cv1800_clk_pll _name = { \ + .common = CV1800_CLK_COMMON(#_name, _parent, \ + &cv1800_clk_ipll_ops,\ + _flags), \ + .pll_reg = _pll_reg, \ + .pll_pwd = CV1800_CLK_BIT(_pll_pwd_reg, \ + _pll_pwd_shift), \ + .pll_status = CV1800_CLK_BIT(_pll_status_reg, \ + _pll_status_shift), \ + .pll_limit = _pll_limit, \ + .pll_syn = NULL, \ + } + +#define CV1800_FACTIONAL_PLL(_name, _parent, _pll_reg, \ + _pll_pwd_reg, _pll_pwd_shift, \ + _pll_status_reg, _pll_status_shift, \ + _pll_limit, _pll_syn, _flags) \ + struct cv1800_clk_pll _name = { \ + .common = CV1800_CLK_COMMON(#_name, _parent, \ + &cv1800_clk_fpll_ops,\ + _flags), \ + .pll_reg = _pll_reg, \ + .pll_pwd = CV1800_CLK_BIT(_pll_pwd_reg, \ + _pll_pwd_shift), \ + .pll_status = CV1800_CLK_BIT(_pll_status_reg, \ + _pll_status_shift), \ + .pll_limit = _pll_limit, \ + .pll_syn = _pll_syn, \ + } + +extern const struct clk_ops cv1800_clk_ipll_ops; +extern const struct clk_ops cv1800_clk_fpll_ops; + +#endif // _CLK_SOPHGO_CV1800_PLL_H_