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Tue, 29 Sep 2026 10:27:18 -0700 (PDT) From: Junhui Liu Date: Wed, 30 Sep 2026 01:26:10 +0800 Subject: [PATCH v5 3/8] clk: sunxi-ng: a733: Add PRCM CCU Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20260930-a733-clk-v5-3-11175b41cd2d@pigmoral.tech> References: <20260930-a733-clk-v5-0-11175b41cd2d@pigmoral.tech> In-Reply-To: <20260930-a733-clk-v5-0-11175b41cd2d@pigmoral.tech> To: Stephen Boyd , Brian Masney , Jerome Brunet , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Philipp Zabel , Junhui Liu , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Richard Cochran Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, netdev@vger.kernel.org, Jerome Brunet , Enzo Adriano , Andre Przywara X-Mailer: b4 0.16.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=12273; i=junhui.liu@pigmoral.tech; h=from:subject:message-id; bh=lNfKeLHVaTiCr2yw6E6OpzcrcZtQ2FEMWt2f/J+Zb5I=; b=owGbwMvMwCWWvDb1VEXc8j+Mp9WSGLJ2f9mre7Rhwg+uBVwnuzbnHYrRk6r7wRv5q8Jf462T8 VzmtWWvO0pZGMS4GGTFFFm4/MX/WevwfDsi0HofZg4rE8gQBi5OAZjIkR+MDOdLXvhzfXCo038a HHWl+Gerk/yBuUqqp3Ib138O6orcbcnIsGP6vHN6zk51gb7zvSNvZG0VCJVSj6poMnu+U3+G8ZL rPAA= X-Developer-Key: i=junhui.liu@pigmoral.tech; a=openpgp; fpr=15B30CC69C4BF0CC3C08F85A2A90CDC122DF37BF X-ZohoMailClient: External X-MORS-Enabled: yes X-MORS-DOMAIN: patchwork.local X-MORS-HOSTING: hosting172546 X-MORS-USER: hosting172546 X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= Add support for the Power Reset Clock Management (PRCM) module found in the Allwinner A733 SoC. This clock controller manages the clock control and reset functions for device modules within the CPUS domain. The PRCM module includes the management of three primary buses: r-ahb, r-apb0, and r-apb1. It also provides clocking for several key peripherals, such as R-UART, R-I2C, R-SPI, and the R-RISCV subsystem. Additionally, the reset lines for these modules are integrated. Tested-by: Jerome Brunet Reviewed-by: Enzo Adriano Signed-off-by: Junhui Liu --- drivers/clk/sunxi-ng/Kconfig | 5 + drivers/clk/sunxi-ng/Makefile | 2 + drivers/clk/sunxi-ng/ccu-sun60i-a733-r.c | 273 +++++++++++++++++++++++++++++++ 3 files changed, 280 insertions(+) diff --git a/drivers/clk/sunxi-ng/Kconfig b/drivers/clk/sunxi-ng/Kconfig index 6af2d020e03e..202e793dc754 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_R_CCU + tristate "Support for the Allwinner A733 PRCM 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 a1c4087d7241..d3702bdb7a23 100644 --- a/drivers/clk/sunxi-ng/Makefile +++ b/drivers/clk/sunxi-ng/Makefile @@ -36,6 +36,7 @@ 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-$(CONFIG_SUN60I_A733_R_CCU) += sun60i-a733-r-ccu.o obj-$(CONFIG_SUN4I_A10_CCU) += sun4i-a10-ccu.o obj-$(CONFIG_SUN5I_CCU) += sun5i-ccu.o obj-$(CONFIG_SUN6I_A31_CCU) += sun6i-a31-ccu.o @@ -64,6 +65,7 @@ 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-r-ccu-y += ccu-sun60i-a733-r.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-r.c b/drivers/clk/sunxi-ng/ccu-sun60i-a733-r.c new file mode 100644 index 000000000000..f320b52526ea --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu-sun60i-a733-r.c @@ -0,0 +1,273 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2023 rengaomin@allwinnertech.com + * Copyright (C) 2026 Junhui Liu + * Based on the A523 CCU driver: + * Copyright (C) 2024 Arm Ltd. + */ + +#include +#include +#include + +#include +#include + +#include "ccu_common.h" +#include "ccu_reset.h" + +#include "ccu_div.h" +#include "ccu_gate.h" +#include "ccu_mp.h" + +static const struct clk_parent_data r_ahb_parents[] = { + { .fw_name = "hosc" }, + { .fw_name = "losc" }, + { .fw_name = "iosc" }, + { .fw_name = "pll-periph0-200m" }, + { .fw_name = "pll-periph0-300m" }, +}; +static SUNXI_CCU_M_DATA_WITH_MUX(r_ahb_clk, "r-ahb", r_ahb_parents, 0x000, + 0, 5, /* M */ + 24, 3, /* mux */ + 0); + +static const struct clk_parent_data r_apb_parents[] = { + { .fw_name = "hosc" }, + { .fw_name = "losc" }, + { .fw_name = "iosc" }, + { .fw_name = "pll-periph0-200m" }, + { .fw_name = "sys-24m" }, +}; + +static SUNXI_CCU_M_DATA_WITH_MUX(r_apb0_clk, "r-apb0", r_apb_parents, 0x00c, + 0, 5, /* M */ + 24, 3, /* mux */ + 0); + +static SUNXI_CCU_M_DATA_WITH_MUX(r_apb1_clk, "r-apb1", r_apb_parents, 0x010, + 0, 5, /* M */ + 24, 3, /* mux */ + 0); + +static SUNXI_CCU_P_DATA_WITH_MUX_GATE(r_cpu_timer0, "r-timer0", r_apb_parents, 0x100, + 1, 3, /* P */ + 4, 3, /* mux */ + BIT(0), /* gate */ + 0); +static SUNXI_CCU_P_DATA_WITH_MUX_GATE(r_cpu_timer1, "r-timer1", r_apb_parents, 0x104, + 1, 3, /* P */ + 4, 3, /* mux */ + BIT(0), /* gate */ + 0); +static SUNXI_CCU_P_DATA_WITH_MUX_GATE(r_cpu_timer2, "r-timer2", r_apb_parents, 0x108, + 1, 3, /* P */ + 4, 3, /* mux */ + BIT(0), /* gate */ + 0); +static SUNXI_CCU_P_DATA_WITH_MUX_GATE(r_cpu_timer3, "r-timer3", r_apb_parents, 0x10c, + 1, 3, /* P */ + 4, 3, /* mux */ + BIT(0), /* gate */ + 0); + +static SUNXI_CCU_GATE_HW(bus_r_timer_clk, "bus-r-timer", &r_ahb_clk.common.hw, 0x11c, BIT(0), 0); +static SUNXI_CCU_GATE_HW(bus_r_twd_clk, "bus-r-twd", &r_apb0_clk.common.hw, 0x12c, BIT(0), 0); + +static const struct clk_parent_data r_pwm_parents[] = { + { .fw_name = "hosc" }, + { .fw_name = "losc" }, + { .fw_name = "iosc" }, + { .fw_name = "sys-24m" }, +}; +static SUNXI_CCU_MUX_DATA_WITH_GATE(r_pwm_clk, "r-pwm", r_pwm_parents, 0x130, + 24, 2, /* mux */ + BIT(31), /* gate */ + 0); +static SUNXI_CCU_GATE_HW(bus_r_pwm_clk, "bus-r-pwm", + &r_apb0_clk.common.hw, 0x13c, BIT(0), 0); + +static const struct clk_parent_data r_spi_parents[] = { + { .fw_name = "hosc" }, + { .fw_name = "pll-periph0-200m" }, + { .fw_name = "pll-periph0-300m" }, + { .fw_name = "pll-periph1-300m" }, + { .fw_name = "sys-24m" }, +}; +static SUNXI_CCU_DUALDIV_MUX_GATE(r_spi_clk, "r-spi", r_spi_parents, 0x150, + 0, 5, /* M */ + 8, 5, /* N */ + 24, 3, /* mux */ + BIT(31), /* gate */ + 0); +static SUNXI_CCU_GATE_HW(bus_r_spi_clk, "bus-r-spi", &r_ahb_clk.common.hw, 0x15c, BIT(0), 0); + +static SUNXI_CCU_GATE_HW(bus_r_msgbox_clk, "bus-r-msgbox", &r_ahb_clk.common.hw, 0x17c, BIT(0), 0); + +static SUNXI_CCU_GATE_HW(bus_r_uart0_clk, "bus-r-uart0", &r_apb1_clk.common.hw, 0x18c, BIT(0), 0); +static SUNXI_CCU_GATE_HW(bus_r_uart1_clk, "bus-r-uart1", &r_apb1_clk.common.hw, 0x18c, BIT(1), 0); + +static SUNXI_CCU_GATE_HW(bus_r_i2c0_clk, "bus-r-i2c0", &r_apb1_clk.common.hw, 0x19c, BIT(0), 0); +static SUNXI_CCU_GATE_HW(bus_r_i2c1_clk, "bus-r-i2c1", &r_apb1_clk.common.hw, 0x19c, BIT(1), 0); +static SUNXI_CCU_GATE_HW(bus_r_i2c2_clk, "bus-r-i2c2", &r_apb1_clk.common.hw, 0x19c, BIT(2), 0); + +static SUNXI_CCU_GATE_HW(bus_r_ppu_clk, "bus-r-ppu", &r_apb0_clk.common.hw, 0x1ac, BIT(0), 0); + +static SUNXI_CCU_GATE_HW(bus_r_tzma_clk, "bus-r-tzma", &r_apb0_clk.common.hw, 0x1b0, BIT(0), 0); +static SUNXI_CCU_GATE_HW(bus_r_cpu_bist_clk, "bus-r-cpu-bist", &r_apb0_clk.common.hw, + 0x1bc, BIT(0), 0); + +static const struct clk_parent_data r_ir_rx_parents[] = { + { .fw_name = "losc" }, + { .fw_name = "hosc" }, + { .fw_name = "sys-24m" }, +}; +static SUNXI_CCU_M_DATA_WITH_MUX_GATE(r_ir_rx_clk, "r-ir-rx", r_ir_rx_parents, 0x1c0, + 0, 5, /* M */ + 24, 2, /* mux */ + BIT(31), /* gate */ + 0); +static SUNXI_CCU_GATE_HW(bus_r_ir_rx_clk, "bus-r-ir-rx", &r_apb0_clk.common.hw, 0x1cc, BIT(0), 0); + +static SUNXI_CCU_GATE_HW(bus_r_rtc_clk, "bus-r-rtc", &r_ahb_clk.common.hw, 0x20c, BIT(0), 0); + +static const struct clk_parent_data r_riscv_parents[] = { + { .fw_name = "hosc" }, + { .fw_name = "losc" }, + { .fw_name = "iosc" }, +}; +static SUNXI_CCU_MUX_DATA_WITH_GATE(r_riscv_clk, "r-riscv", r_riscv_parents, 0x210, + 24, 2, /* mux */ + BIT(31), /* gate */ + 0); +static SUNXI_CCU_GATE_HW(bus_r_riscv_clk, "bus-r-riscv", &r_apb0_clk.common.hw, + 0x21c, BIT(0), 0); +static SUNXI_CCU_GATE_HW(bus_r_riscv_cfg_clk, "bus-r-riscv-cfg", &r_apb0_clk.common.hw, + 0x21c, BIT(1), 0); + +static SUNXI_CCU_GATE_HW(bus_r_cpucfg_clk, "bus-r-cpucfg", &r_apb0_clk.common.hw, + 0x22c, BIT(0), CLK_IS_CRITICAL); + +static struct ccu_common *sun60i_a733_r_ccu_clks[] = { + &r_ahb_clk.common, + &r_apb0_clk.common, + &r_apb1_clk.common, + &r_cpu_timer0.common, + &r_cpu_timer1.common, + &r_cpu_timer2.common, + &r_cpu_timer3.common, + &bus_r_timer_clk.common, + &bus_r_twd_clk.common, + &r_pwm_clk.common, + &bus_r_pwm_clk.common, + &r_spi_clk.common, + &bus_r_spi_clk.common, + &bus_r_msgbox_clk.common, + &bus_r_uart0_clk.common, + &bus_r_uart1_clk.common, + &bus_r_i2c0_clk.common, + &bus_r_i2c1_clk.common, + &bus_r_i2c2_clk.common, + &bus_r_ppu_clk.common, + &bus_r_tzma_clk.common, + &bus_r_cpu_bist_clk.common, + &r_ir_rx_clk.common, + &bus_r_ir_rx_clk.common, + &bus_r_rtc_clk.common, + &r_riscv_clk.common, + &bus_r_riscv_clk.common, + &bus_r_riscv_cfg_clk.common, + &bus_r_cpucfg_clk.common, +}; + +static struct clk_hw_onecell_data sun60i_a733_r_hw_clks = { + .hws = { + [CLK_R_AHB] = &r_ahb_clk.common.hw, + [CLK_R_APB0] = &r_apb0_clk.common.hw, + [CLK_R_APB1] = &r_apb1_clk.common.hw, + [CLK_R_TIMER0] = &r_cpu_timer0.common.hw, + [CLK_R_TIMER1] = &r_cpu_timer1.common.hw, + [CLK_R_TIMER2] = &r_cpu_timer2.common.hw, + [CLK_R_TIMER3] = &r_cpu_timer3.common.hw, + [CLK_BUS_R_TIMER] = &bus_r_timer_clk.common.hw, + [CLK_BUS_R_TWD] = &bus_r_twd_clk.common.hw, + [CLK_R_PWM] = &r_pwm_clk.common.hw, + [CLK_BUS_R_PWM] = &bus_r_pwm_clk.common.hw, + [CLK_R_SPI] = &r_spi_clk.common.hw, + [CLK_BUS_R_SPI] = &bus_r_spi_clk.common.hw, + [CLK_BUS_R_MSGBOX] = &bus_r_msgbox_clk.common.hw, + [CLK_BUS_R_UART0] = &bus_r_uart0_clk.common.hw, + [CLK_BUS_R_UART1] = &bus_r_uart1_clk.common.hw, + [CLK_BUS_R_I2C0] = &bus_r_i2c0_clk.common.hw, + [CLK_BUS_R_I2C1] = &bus_r_i2c1_clk.common.hw, + [CLK_BUS_R_I2C2] = &bus_r_i2c2_clk.common.hw, + [CLK_BUS_R_PPU] = &bus_r_ppu_clk.common.hw, + [CLK_BUS_R_TZMA] = &bus_r_tzma_clk.common.hw, + [CLK_BUS_R_CPU_BIST] = &bus_r_cpu_bist_clk.common.hw, + [CLK_R_IR_RX] = &r_ir_rx_clk.common.hw, + [CLK_BUS_R_IR_RX] = &bus_r_ir_rx_clk.common.hw, + [CLK_BUS_R_RTC] = &bus_r_rtc_clk.common.hw, + [CLK_R_RISCV] = &r_riscv_clk.common.hw, + [CLK_BUS_R_RISCV] = &bus_r_riscv_clk.common.hw, + [CLK_BUS_R_RISCV_CFG] = &bus_r_riscv_cfg_clk.common.hw, + [CLK_BUS_R_CPUCFG] = &bus_r_cpucfg_clk.common.hw, + }, + .num = CLK_BUS_R_CPUCFG + 1, +}; + +static const struct ccu_reset_map sun60i_a733_r_ccu_resets[] = { + [RST_BUS_R_TIMER] = { 0x11c, BIT(16) }, + [RST_BUS_R_PWM] = { 0x13c, BIT(16) }, + [RST_BUS_R_SPI] = { 0x15c, BIT(16) }, + [RST_BUS_R_MSGBOX] = { 0x17c, BIT(16) }, + [RST_BUS_R_UART0] = { 0x18c, BIT(16) }, + [RST_BUS_R_UART1] = { 0x18c, BIT(17) }, + [RST_BUS_R_I2C0] = { 0x19c, BIT(16) }, + [RST_BUS_R_I2C1] = { 0x19c, BIT(17) }, + [RST_BUS_R_I2C2] = { 0x19c, BIT(18) }, + [RST_BUS_R_IR_RX] = { 0x1cc, BIT(16) }, + [RST_BUS_R_RTC] = { 0x20c, BIT(16) }, + [RST_BUS_R_RISCV_CFG] = { 0x21c, BIT(16) }, + [RST_BUS_R_CPUCFG] = { 0x22c, BIT(16) }, +}; + +static const struct sunxi_ccu_desc sun60i_a733_r_ccu_desc = { + .ccu_clks = sun60i_a733_r_ccu_clks, + .num_ccu_clks = ARRAY_SIZE(sun60i_a733_r_ccu_clks), + + .hw_clks = &sun60i_a733_r_hw_clks, + + .resets = sun60i_a733_r_ccu_resets, + .num_resets = ARRAY_SIZE(sun60i_a733_r_ccu_resets), +}; + +static int sun60i_a733_r_ccu_probe(struct platform_device *pdev) +{ + void __iomem *reg; + + reg = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(reg)) + return PTR_ERR(reg); + + return devm_sunxi_ccu_probe(&pdev->dev, reg, &sun60i_a733_r_ccu_desc); +} + +static const struct of_device_id sun60i_a733_r_ccu_ids[] = { + { .compatible = "allwinner,sun60i-a733-r-ccu" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, sun60i_a733_r_ccu_ids); + +static struct platform_driver sun60i_a733_r_ccu_driver = { + .probe = sun60i_a733_r_ccu_probe, + .driver = { + .name = "sun60i-a733-r-ccu", + .suppress_bind_attrs = true, + .of_match_table = sun60i_a733_r_ccu_ids, + }, +}; +module_platform_driver(sun60i_a733_r_ccu_driver); + +MODULE_IMPORT_NS("SUNXI_CCU"); +MODULE_DESCRIPTION("Support for the Allwinner A733 PRCM CCU"); +MODULE_LICENSE("GPL");