diff --git a/drivers/clk/sunxi-ng/Kconfig b/drivers/clk/sunxi-ng/Kconfig index 6af2d020e03e..16afbf249f26 100644 --- a/drivers/clk/sunxi-ng/Kconfig +++ b/drivers/clk/sunxi-ng/Kconfig @@ -67,6 +67,11 @@ config SUN55I_A523_R_CCU default ARCH_SUNXI depends on ARM64 || COMPILE_TEST +config SUN60I_A733_RTC_CCU + tristate "Support for the Allwinner A733 RTC CCU" + default ARCH_SUNXI + depends on ARM64 || COMPILE_TEST + config SUN4I_A10_CCU tristate "Support for the Allwinner A10/A20 CCU" default ARCH_SUNXI diff --git a/drivers/clk/sunxi-ng/Makefile b/drivers/clk/sunxi-ng/Makefile index c3f810a025a8..b0d823440c33 100644 --- a/drivers/clk/sunxi-ng/Makefile +++ b/drivers/clk/sunxi-ng/Makefile @@ -39,6 +39,7 @@ obj-$(CONFIG_SUN50I_H616_CCU) += sun50i-h616-ccu.o obj-$(CONFIG_SUN55I_A523_CCU) += sun55i-a523-ccu.o obj-$(CONFIG_SUN55I_A523_MCU_CCU) += sun55i-a523-mcu-ccu.o obj-$(CONFIG_SUN55I_A523_R_CCU) += sun55i-a523-r-ccu.o +obj-$(CONFIG_SUN60I_A733_RTC_CCU) += sun60i-a733-rtc-ccu.o obj-$(CONFIG_SUN4I_A10_CCU) += sun4i-a10-ccu.o obj-$(CONFIG_SUN5I_CCU) += sun5i-ccu.o obj-$(CONFIG_SUN6I_A31_CCU) += sun6i-a31-ccu.o @@ -67,6 +68,7 @@ sun50i-h616-ccu-y += ccu-sun50i-h616.o sun55i-a523-ccu-y += ccu-sun55i-a523.o sun55i-a523-mcu-ccu-y += ccu-sun55i-a523-mcu.o sun55i-a523-r-ccu-y += ccu-sun55i-a523-r.o +sun60i-a733-rtc-ccu-y += ccu-sun60i-a733-rtc.o sun4i-a10-ccu-y += ccu-sun4i-a10.o sun5i-ccu-y += ccu-sun5i.o sun6i-a31-ccu-y += ccu-sun6i-a31.o diff --git a/drivers/clk/sunxi-ng/ccu-sun60i-a733-rtc.c b/drivers/clk/sunxi-ng/ccu-sun60i-a733-rtc.c new file mode 100644 index 000000000000..d17aceffa16e --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu-sun60i-a733-rtc.c @@ -0,0 +1,204 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2026 Junhui Liu + */ + +#include +#include +#include +#include +#include + +#include "ccu_common.h" + +#include "ccu_gate.h" +#include "ccu_mux.h" +#include "ccu_rtc.h" + +#include "ccu-sun60i-a733-rtc.h" + +static struct ccu_common iosc_clk = { + .reg = DCXO_CTRL_REG, + .features = CCU_FEATURE_IOSC_CALIBRATION, + .hw.init = CLK_HW_INIT_NO_PARENT("iosc", &ccu_iosc_ops, + CLK_GET_RATE_NOCACHE), +}; + +static struct ccu_common iosc_32k_clk = { + .features = CCU_FEATURE_IOSC_CALIBRATION, + .hw.init = CLK_HW_INIT_HW("iosc-32k", &iosc_clk.hw, + &ccu_iosc_32k_ops, + CLK_GET_RATE_NOCACHE), +}; + +static SUNXI_CCU_GATE_FW(ext_osc32k_gate_clk, "ext-osc32k-gate", + "ext-osc32k", 0x0, BIT(4), 0); + +static const struct clk_hw *osc32k_parents[] = { + &iosc_32k_clk.hw, + &ext_osc32k_gate_clk.common.hw, +}; + +static struct ccu_mux osc32k_clk = { + .mux = _SUNXI_CCU_MUX(0, 1), + .common = { + .reg = LOSC_CTRL_REG, + .features = CCU_FEATURE_KEY_FIELD, + .hw.init = CLK_HW_INIT_PARENTS_HW("osc32k", + osc32k_parents, + &ccu_mux_ops, + 0), + }, +}; + +static const struct clk_parent_data hosc_parents[] = { + { .fw_name = "osc24M" }, + { .fw_name = "osc19M" }, + { .fw_name = "osc26M" }, + { .fw_name = "osc24M" }, +}; + +struct ccu_mux hosc_clk = { + .enable = DCXO_CTRL_DCXO_EN, + .mux = _SUNXI_CCU_MUX(14, 2), + .common = { + .reg = DCXO_CTRL_REG, + .hw.init = CLK_HW_INIT_PARENTS_DATA("hosc", + hosc_parents, + &ccu_mux_ro_ops, + 0), + }, +}; + +static const struct ccu_mux_fixed_prediv hosc_32k_predivs[] = { + { .index = 0, .div = 732 }, + { .index = 1, .div = 586 }, + { .index = 2, .div = 793 }, + { .index = 3, .div = 732 }, +}; + +static struct ccu_mux hosc_32k_mux_clk = { + .enable = DCXO_CTRL_DCXO_EN, + .mux = { + .shift = 14, + .width = 2, + .fixed_predivs = hosc_32k_predivs, + .n_predivs = ARRAY_SIZE(hosc_32k_predivs), + }, + .common = { + .reg = DCXO_CTRL_REG, + .features = CCU_FEATURE_FIXED_PREDIV, + .hw.init = CLK_HW_INIT_PARENTS_DATA("hosc-32k-mux", + hosc_parents, + &ccu_mux_ro_ops, + 0), + }, +}; + +static SUNXI_CCU_GATE_HW(hosc_32k_clk, "hosc-32k", &hosc_32k_mux_clk.common.hw, + LOSC_OUT_GATING_REG, BIT(16), 0); + +static const struct clk_hw *rtc_32k_parents[] = { + &osc32k_clk.common.hw, + &hosc_32k_clk.common.hw, +}; + +static struct ccu_mux rtc_32k_clk = { + .mux = _SUNXI_CCU_MUX(1, 1), + .common = { + .reg = LOSC_CTRL_REG, + .features = CCU_FEATURE_KEY_FIELD, + .hw.init = CLK_HW_INIT_PARENTS_HW("rtc-32k", + rtc_32k_parents, + &ccu_mux_ops, + 0), + }, +}; + +static const struct clk_parent_data osc32k_fanout_parents[] = { + { .hw = &osc32k_clk.common.hw }, + { .hw = &ext_osc32k_gate_clk.common.hw }, + { .hw = &hosc_32k_clk.common.hw }, +}; + +static SUNXI_CCU_MUX_DATA_WITH_GATE(osc32k_fanout_clk, "osc32k-fanout", osc32k_fanout_parents, + LOSC_OUT_GATING_REG, + 1, 2, /* mux */ + BIT(0), /* gate */ + 0); + +static SUNXI_CCU_GATE_HW(hosc_serdes1_clk, "hosc-serdes1", &hosc_clk.common.hw, + DCXO_GATING_REG, DCXO_SERDES1_GATING, 0); +static SUNXI_CCU_GATE_HW(hosc_serdes0_clk, "hosc-serdes0", &hosc_clk.common.hw, + DCXO_GATING_REG, DCXO_SERDES0_GATING, 0); +static SUNXI_CCU_GATE_HW(hosc_hdmi_clk, "hosc-hdmi", &hosc_clk.common.hw, + DCXO_GATING_REG, DCXO_HDMI_GATING, 0); +static SUNXI_CCU_GATE_HW(hosc_ufs_clk, "hosc-ufs", &hosc_clk.common.hw, + DCXO_GATING_REG, DCXO_UFS_GATING, 0); + +static struct ccu_common *sun60i_rtc_ccu_clks[] = { + &iosc_clk, + &iosc_32k_clk, + &ext_osc32k_gate_clk.common, + &osc32k_clk.common, + &hosc_clk.common, + &hosc_32k_mux_clk.common, + &hosc_32k_clk.common, + &rtc_32k_clk.common, + &osc32k_fanout_clk.common, + &hosc_serdes1_clk.common, + &hosc_serdes0_clk.common, + &hosc_hdmi_clk.common, + &hosc_ufs_clk.common, +}; + +static struct clk_hw_onecell_data sun60i_rtc_ccu_hw_clks = { + .num = CLK_NUMBER, + .hws = { + [CLK_IOSC] = &iosc_clk.hw, + [CLK_OSC32K] = &osc32k_clk.common.hw, + [CLK_HOSC] = &hosc_clk.common.hw, + [CLK_RTC_32K] = &rtc_32k_clk.common.hw, + [CLK_OSC32K_FANOUT] = &osc32k_fanout_clk.common.hw, + [CLK_HOSC_SERDES1] = &hosc_serdes1_clk.common.hw, + [CLK_HOSC_SERDES0] = &hosc_serdes0_clk.common.hw, + [CLK_HOSC_HDMI] = &hosc_hdmi_clk.common.hw, + [CLK_HOSC_UFS] = &hosc_ufs_clk.common.hw, + [CLK_IOSC_32K] = &iosc_32k_clk.hw, + [CLK_EXT_OSC32K_GATE] = &ext_osc32k_gate_clk.common.hw, + [CLK_HOSC_32K_MUX] = &hosc_32k_mux_clk.common.hw, + [CLK_HOSC_32K] = &hosc_32k_clk.common.hw, + }, +}; + +static const struct sunxi_ccu_desc sun60i_rtc_ccu_desc = { + .ccu_clks = sun60i_rtc_ccu_clks, + .num_ccu_clks = ARRAY_SIZE(sun60i_rtc_ccu_clks), + + .hw_clks = &sun60i_rtc_ccu_hw_clks, +}; + +static int sun60i_rtc_ccu_probe(struct auxiliary_device *adev, + const struct auxiliary_device_id *id) +{ + struct device *dev = &adev->dev; + void __iomem *reg = dev->platform_data; + + return devm_sunxi_ccu_probe(dev, reg, &sun60i_rtc_ccu_desc); +} + +static const struct auxiliary_device_id sun60i_ccu_rtc_ids[] = { + { .name = SUN6I_RTC_AUX_ID(sun60i) }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(auxiliary, sun60i_ccu_rtc_ids); + +static struct auxiliary_driver sun60i_ccu_rtc_driver = { + .probe = sun60i_rtc_ccu_probe, + .id_table = sun60i_ccu_rtc_ids, +}; +module_auxiliary_driver(sun60i_ccu_rtc_driver); + +MODULE_IMPORT_NS("SUNXI_CCU"); +MODULE_DESCRIPTION("Support for the Allwinner A733 RTC CCU"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/sunxi-ng/ccu-sun60i-a733-rtc.h b/drivers/clk/sunxi-ng/ccu-sun60i-a733-rtc.h new file mode 100644 index 000000000000..41ec6195b5e7 --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu-sun60i-a733-rtc.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2026 Junhui Liu + */ + +#ifndef _CCU_SUN60I_A733_RTC_H_ +#define _CCU_SUN60I_A733_RTC_H_ + +#include + +#define CLK_IOSC_32K 9 +#define CLK_EXT_OSC32K_GATE 10 +#define CLK_HOSC_32K_MUX 11 +#define CLK_HOSC_32K 12 + +#define CLK_NUMBER (CLK_HOSC_32K + 1) + +#endif /* _CCU_SUN60I_A733_RTC_H_ */ diff --git a/drivers/clk/sunxi-ng/ccu_rtc.h b/drivers/clk/sunxi-ng/ccu_rtc.h index 1c44c2206a25..665162723796 100644 --- a/drivers/clk/sunxi-ng/ccu_rtc.h +++ b/drivers/clk/sunxi-ng/ccu_rtc.h @@ -27,8 +27,15 @@ #define LOSC_OUT_GATING_REG 0x60 #define DCXO_CTRL_REG 0x160 +#define DCXO_CTRL_DCXO_EN BIT(1) #define DCXO_CTRL_CLK16M_RC_EN BIT(0) +#define DCXO_GATING_REG 0x16c +#define DCXO_SERDES1_GATING BIT(5) +#define DCXO_SERDES0_GATING BIT(4) +#define DCXO_HDMI_GATING BIT(1) +#define DCXO_UFS_GATING BIT(0) + #define SUN6I_RTC_AUX_ID(_name) "rtc_sun6i." #_name extern const struct clk_ops ccu_iosc_ops;