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Message-Id: <20250830170901.1996227-7-wens@kernel.org>
Date: Sun, 31 Aug 2025 01:08:59 +0800
From: Chen-Yu Tsai <wens@...nel.org>
To: Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Stephen Boyd <sboyd@...nel.org>,
Chen-Yu Tsai <wens@...e.org>,
Jernej Skrabec <jernej@...nel.org>,
Samuel Holland <samuel@...lland.org>
Cc: Andre Przywara <andre.przywara@....com>,
linux-sunxi@...ts.linux.dev,
linux-clk@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 6/8] clk: sunxi-ng: add support for the A523/T527 MCU CCU
From: Chen-Yu Tsai <wens@...e.org>
The A523/T527 SoCs have a new MCU PRCM, which has more clocks and reset
controls for the RISC-V MCU and other peripherals. There is no visible
bus in this part, but there is a second audio PLL. The BSP driver uses
the 24MHz main oscillator as the parent for all the bus clocks.
Add a driver to support this part. Unlike the BSP driver, the SoC's main
MBUS clock is chosen as the parent for the MCU MBUS clock, and the
latter then serves as the parent of the MCU DMA controller's MBUS clock.
Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
drivers/clk/sunxi-ng/Kconfig | 5 +
drivers/clk/sunxi-ng/Makefile | 2 +
drivers/clk/sunxi-ng/ccu-sun55i-a523-mcu.c | 447 +++++++++++++++++++++
3 files changed, 454 insertions(+)
create mode 100644 drivers/clk/sunxi-ng/ccu-sun55i-a523-mcu.c
diff --git a/drivers/clk/sunxi-ng/Kconfig b/drivers/clk/sunxi-ng/Kconfig
index 8896fd052ef1..6af2d020e03e 100644
--- a/drivers/clk/sunxi-ng/Kconfig
+++ b/drivers/clk/sunxi-ng/Kconfig
@@ -57,6 +57,11 @@ config SUN55I_A523_CCU
default ARCH_SUNXI
depends on ARM64 || COMPILE_TEST
+config SUN55I_A523_MCU_CCU
+ tristate "Support for the Allwinner A523/T527 MCU CCU"
+ default ARCH_SUNXI
+ depends on ARM64 || COMPILE_TEST
+
config SUN55I_A523_R_CCU
tristate "Support for the Allwinner A523/T527 PRCM CCU"
default ARCH_SUNXI
diff --git a/drivers/clk/sunxi-ng/Makefile b/drivers/clk/sunxi-ng/Makefile
index 82e471036de6..a1c4087d7241 100644
--- a/drivers/clk/sunxi-ng/Makefile
+++ b/drivers/clk/sunxi-ng/Makefile
@@ -34,6 +34,7 @@ obj-$(CONFIG_SUN50I_H6_CCU) += sun50i-h6-ccu.o
obj-$(CONFIG_SUN50I_H6_R_CCU) += sun50i-h6-r-ccu.o
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-$(CONFIG_SUN4I_A10_CCU) += sun4i-a10-ccu.o
obj-$(CONFIG_SUN5I_CCU) += sun5i-ccu.o
@@ -61,6 +62,7 @@ sun50i-h6-ccu-y += ccu-sun50i-h6.o
sun50i-h6-r-ccu-y += ccu-sun50i-h6-r.o
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
sun4i-a10-ccu-y += ccu-sun4i-a10.o
sun5i-ccu-y += ccu-sun5i.o
diff --git a/drivers/clk/sunxi-ng/ccu-sun55i-a523-mcu.c b/drivers/clk/sunxi-ng/ccu-sun55i-a523-mcu.c
new file mode 100644
index 000000000000..6105485837c9
--- /dev/null
+++ b/drivers/clk/sunxi-ng/ccu-sun55i-a523-mcu.c
@@ -0,0 +1,447 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2025 Chen-Yu Tsai <wens@...e.org>
+ *
+ * Based on the A523 CCU driver:
+ * Copyright (C) 2023-2024 Arm Ltd.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <dt-bindings/clock/sun55i-a523-mcu-ccu.h>
+#include <dt-bindings/reset/sun55i-a523-mcu-ccu.h>
+
+#include "ccu_common.h"
+#include "ccu_reset.h"
+
+#include "ccu_div.h"
+#include "ccu_gate.h"
+#include "ccu_mp.h"
+#include "ccu_mult.h"
+#include "ccu_nm.h"
+
+static const struct clk_parent_data osc24M[] = {
+ { .fw_name = "hosc" }
+};
+
+#define SUN55I_A523_PLL_AUDIO1_REG 0x00c
+static struct ccu_sdm_setting pll_audio1_sdm_table[] = {
+ { .rate = 2167603200, .pattern = 0xa000a234, .m = 1, .n = 90 }, /* div2->22.5792 */
+ { .rate = 2359296000, .pattern = 0xa0009ba6, .m = 1, .n = 98 }, /* div2->24.576 */
+ { .rate = 1806336000, .pattern = 0xa000872b, .m = 1, .n = 75 }, /* div5->22.576 */
+};
+
+static struct ccu_nm pll_audio1_clk = {
+ .enable = BIT(27),
+ .lock = BIT(28),
+ .n = _SUNXI_CCU_MULT_MIN(8, 8, 11),
+ .m = _SUNXI_CCU_DIV(1, 1),
+ .sdm = _SUNXI_CCU_SDM(pll_audio1_sdm_table, BIT(24),
+ 0x010, BIT(31)),
+ .min_rate = 180000000U,
+ .max_rate = 3500000000U,
+ .common = {
+ .reg = 0x00c,
+ .features = CCU_FEATURE_SIGMA_DELTA_MOD,
+ .hw.init = CLK_HW_INIT_PARENTS_DATA("pll-audio1",
+ osc24M, &ccu_nm_ops,
+ CLK_SET_RATE_GATE),
+ },
+};
+
+static const struct clk_hw *pll_audio1_div_parents[] = { &pll_audio1_clk.common.hw };
+static CLK_FIXED_FACTOR_HWS(pll_periph1_div2_clk, "pll-audio1-div2",
+ pll_audio1_div_parents, 2, 1,
+ CLK_SET_RATE_PARENT);
+static CLK_FIXED_FACTOR_HWS(pll_periph1_div5_clk, "pll-audio1-div5",
+ pll_audio1_div_parents, 5, 1,
+ CLK_SET_RATE_PARENT);
+
+static SUNXI_CCU_M_WITH_GATE(audio_out_clk, "audio-out",
+ "pll-audio1-div2", 0x01c,
+ 0, 5, BIT(31), CLK_SET_RATE_PARENT);
+
+static const struct clk_parent_data dsp_parents[] = {
+ { .fw_name = "hosc" },
+ { .fw_name = "losc" },
+ { .fw_name = "iosc" },
+ { .hw = &pll_periph1_div5_clk.hw },
+ { .hw = &pll_periph1_div2_clk.hw },
+ { .fw_name = "dsp" },
+};
+static SUNXI_CCU_M_DATA_WITH_MUX_GATE(dsp_clk, "mcu-dsp", dsp_parents, 0x0020,
+ 0, 5, /* M */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ 0);
+
+static const struct clk_parent_data i2s_parents[] = {
+ { .fw_name = "pll-audio0-4x" },
+ { .hw = &pll_periph1_div2_clk.hw },
+ { .hw = &pll_periph1_div5_clk.hw },
+};
+
+static SUNXI_CCU_DUALDIV_MUX_GATE(i2s0_clk, "i2s0", i2s_parents, 0x02c,
+ 0, 5, /* M */
+ 5, 5, /* P */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ CLK_SET_RATE_PARENT);
+static SUNXI_CCU_DUALDIV_MUX_GATE(i2s1_clk, "i2s1", i2s_parents, 0x030,
+ 0, 5, /* M */
+ 5, 5, /* P */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ CLK_SET_RATE_PARENT);
+static SUNXI_CCU_DUALDIV_MUX_GATE(i2s2_clk, "i2s2", i2s_parents, 0x034,
+ 0, 5, /* M */
+ 5, 5, /* P */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ CLK_SET_RATE_PARENT);
+static SUNXI_CCU_DUALDIV_MUX_GATE(i2s3_clk, "i2s3", i2s_parents, 0x038,
+ 0, 5, /* M */
+ 5, 5, /* P */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ CLK_SET_RATE_PARENT);
+
+static const struct clk_parent_data i2s3_asrc_parents[] = {
+ { .fw_name = "pll-periph0-300m" },
+ { .hw = &pll_periph1_div2_clk.hw },
+ { .hw = &pll_periph1_div5_clk.hw },
+};
+static SUNXI_CCU_DUALDIV_MUX_GATE(i2s3_asrc_clk, "i2s3-asrc",
+ i2s3_asrc_parents, 0x038,
+ 0, 5, /* M */
+ 5, 5, /* P */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ CLK_SET_RATE_PARENT);
+
+static SUNXI_CCU_GATE_DATA(bus_i2s0_clk, "bus-i2s0", osc24M, 0x040, BIT(0), 0);
+static SUNXI_CCU_GATE_DATA(bus_i2s1_clk, "bus-i2s1", osc24M, 0x040, BIT(1), 0);
+static SUNXI_CCU_GATE_DATA(bus_i2s2_clk, "bus-i2s2", osc24M, 0x040, BIT(2), 0);
+static SUNXI_CCU_GATE_DATA(bus_i2s3_clk, "bus-i2s3", osc24M, 0x040, BIT(3), 0);
+
+static const struct clk_parent_data audio_parents[] = {
+ { .fw_name = "pll-audio0-4x" },
+ { .hw = &pll_periph1_div2_clk.hw },
+ { .hw = &pll_periph1_div5_clk.hw },
+};
+static SUNXI_CCU_DUALDIV_MUX_GATE(spdif_tx_clk, "spdif-tx",
+ audio_parents, 0x044,
+ 0, 5, /* M */
+ 5, 5, /* P */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ CLK_SET_RATE_PARENT);
+static SUNXI_CCU_DUALDIV_MUX_GATE(spdif_rx_clk, "spdif-rx",
+ i2s3_asrc_parents, 0x048,
+ 0, 5, /* M */
+ 5, 5, /* P */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ CLK_SET_RATE_PARENT);
+
+static SUNXI_CCU_GATE_DATA(bus_spdif_clk, "bus-spdif", osc24M, 0x04c, BIT(0), 0);
+
+static SUNXI_CCU_DUALDIV_MUX_GATE(dmic_clk, "dmic", audio_parents, 0x050,
+ 0, 5, /* M */
+ 5, 5, /* P */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ CLK_SET_RATE_PARENT);
+
+static SUNXI_CCU_GATE_DATA(bus_dmic_clk, "bus-dmic", osc24M, 0x054, BIT(0), 0);
+
+static SUNXI_CCU_DUALDIV_MUX_GATE(audio_dac_clk, "audio-dac",
+ audio_parents, 0x058,
+ 0, 5, /* M */
+ 5, 5, /* P */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ CLK_SET_RATE_PARENT);
+static SUNXI_CCU_DUALDIV_MUX_GATE(audio_adc_clk, "audio-adc",
+ audio_parents, 0x05c,
+ 0, 5, /* M */
+ 5, 5, /* P */
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ CLK_SET_RATE_PARENT);
+
+static SUNXI_CCU_GATE_DATA(bus_audio_codec_clk, "bus-audio-codec",
+ osc24M, 0x060, BIT(0), 0);
+
+static SUNXI_CCU_GATE_DATA(bus_dsp_msgbox_clk, "bus-dsp-msgbox",
+ osc24M, 0x068, BIT(0), 0);
+static SUNXI_CCU_GATE_DATA(bus_dsp_cfg_clk, "bus-dsp-cfg",
+ osc24M, 0x06c, BIT(0), 0);
+
+static SUNXI_CCU_GATE_DATA(bus_npu_hclk, "bus-npu-hclk", osc24M, 0x070, BIT(1), 0);
+static SUNXI_CCU_GATE_DATA(bus_npu_aclk, "bus-npu-aclk", osc24M, 0x070, BIT(2), 0);
+
+static const struct clk_parent_data timer_parents[] = {
+ { .fw_name = "hosc" },
+ { .fw_name = "losc" },
+ { .fw_name = "iosc" },
+ { .fw_name = "r-ahb" }
+};
+static SUNXI_CCU_P_DATA_WITH_MUX_GATE(mcu_timer0_clk, "mcu-timer0", timer_parents,
+ 0x074,
+ 1, 3, /* P */
+ 4, 2, /* mux */
+ BIT(0), /* gate */
+ 0);
+static SUNXI_CCU_P_DATA_WITH_MUX_GATE(mcu_timer1_clk, "mcu-timer1", timer_parents,
+ 0x078,
+ 1, 3, /* P */
+ 4, 2, /* mux */
+ BIT(0), /* gate */
+ 0);
+static SUNXI_CCU_P_DATA_WITH_MUX_GATE(mcu_timer2_clk, "mcu-timer2", timer_parents,
+ 0x07c,
+ 1, 3, /* P */
+ 4, 2, /* mux */
+ BIT(0), /* gate */
+ 0);
+static SUNXI_CCU_P_DATA_WITH_MUX_GATE(mcu_timer3_clk, "mcu-timer3", timer_parents,
+ 0x080,
+ 1, 3, /* P */
+ 4, 2, /* mux */
+ BIT(0), /* gate */
+ 0);
+static SUNXI_CCU_P_DATA_WITH_MUX_GATE(mcu_timer4_clk, "mcu-timer4", timer_parents,
+ 0x084,
+ 1, 3, /* P */
+ 4, 2, /* mux */
+ BIT(0), /* gate */
+ 0);
+static SUNXI_CCU_P_DATA_WITH_MUX_GATE(mcu_timer5_clk, "mcu-timer5", timer_parents,
+ 0x088,
+ 1, 3, /* P */
+ 4, 2, /* mux */
+ BIT(0), /* gate */
+ 0);
+static SUNXI_CCU_GATE_DATA(bus_mcu_timer_clk, "bus-mcu-timer", osc24M, 0x08c, BIT(0), 0);
+static SUNXI_CCU_GATE_DATA(bus_mcu_dma_clk, "bus-mcu-dma", osc24M, 0x104, BIT(0), 0);
+static SUNXI_CCU_GATE_DATA(tzma0_clk, "tzma0", osc24M, 0x108, BIT(0), 0);
+static SUNXI_CCU_GATE_DATA(tzma1_clk, "tzma1", osc24M, 0x10c, BIT(0), 0);
+static SUNXI_CCU_GATE_DATA(bus_pubsram_clk, "bus-pubsram", osc24M, 0x114, BIT(0), 0);
+
+/*
+ * user manual has "mbus" clock as parent of both clocks below,
+ * but this makes more sense, since BSP MCU DMA controller has
+ * reference to both of them, likely needing both enabled.
+ */
+static SUNXI_CCU_GATE_FW(mbus_mcu_clk, "mbus-mcu", "mbus", 0x11c, BIT(1), 0);
+static SUNXI_CCU_GATE_HW(mbus_mcu_dma_clk, "mbus-mcu-dma",
+ &mbus_mcu_clk.common.hw, 0x11c, BIT(0), 0);
+
+static const struct clk_parent_data riscv_pwm_parents[] = {
+ { .fw_name = "hosc" },
+ { .fw_name = "losc" },
+ { .fw_name = "iosc" },
+};
+
+static SUNXI_CCU_MUX_DATA_WITH_GATE(riscv_clk, "riscv",
+ riscv_pwm_parents, 0x120,
+ 27, 3, BIT(31), 0);
+static SUNXI_CCU_GATE_DATA(bus_riscv_cfg_clk, "bus-riscv-cfg", osc24M,
+ 0x124, BIT(0), 0);
+static SUNXI_CCU_GATE_DATA(bus_riscv_msgbox_clk, "bus-riscv-msgbox", osc24M,
+ 0x128, BIT(0), 0);
+
+static SUNXI_CCU_MUX_DATA_WITH_GATE(mcu_pwm0_clk, "mcu-pwm0",
+ riscv_pwm_parents, 0x130,
+ 27, 3, BIT(31), 0);
+static SUNXI_CCU_GATE_DATA(bus_mcu_pwm0_clk, "bus-mcu-pwm0", osc24M,
+ 0x128, BIT(0), 0);
+
+/*
+ * Contains all clocks that are controlled by a hardware register. They
+ * have a (sunxi) .common member, which needs to be initialised by the common
+ * sunxi CCU code, to be filled with the MMIO base address and the shared lock.
+ */
+static struct ccu_common *sun55i_a523_mcu_ccu_clks[] = {
+ &pll_audio1_clk.common,
+ &audio_out_clk.common,
+ &dsp_clk.common,
+ &i2s0_clk.common,
+ &i2s1_clk.common,
+ &i2s2_clk.common,
+ &i2s3_clk.common,
+ &i2s3_asrc_clk.common,
+ &bus_i2s0_clk.common,
+ &bus_i2s1_clk.common,
+ &bus_i2s2_clk.common,
+ &bus_i2s3_clk.common,
+ &spdif_tx_clk.common,
+ &spdif_rx_clk.common,
+ &bus_spdif_clk.common,
+ &dmic_clk.common,
+ &bus_dmic_clk.common,
+ &audio_dac_clk.common,
+ &audio_adc_clk.common,
+ &bus_audio_codec_clk.common,
+ &bus_dsp_msgbox_clk.common,
+ &bus_dsp_cfg_clk.common,
+ &bus_npu_aclk.common,
+ &bus_npu_hclk.common,
+ &mcu_timer0_clk.common,
+ &mcu_timer1_clk.common,
+ &mcu_timer2_clk.common,
+ &mcu_timer3_clk.common,
+ &mcu_timer4_clk.common,
+ &mcu_timer5_clk.common,
+ &bus_mcu_timer_clk.common,
+ &bus_mcu_dma_clk.common,
+ &tzma0_clk.common,
+ &tzma1_clk.common,
+ &bus_pubsram_clk.common,
+ &mbus_mcu_dma_clk.common,
+ &mbus_mcu_clk.common,
+ &riscv_clk.common,
+ &bus_riscv_cfg_clk.common,
+ &bus_riscv_msgbox_clk.common,
+ &mcu_pwm0_clk.common,
+ &bus_mcu_pwm0_clk.common,
+};
+
+static struct clk_hw_onecell_data sun55i_a523_mcu_hw_clks = {
+ .num = CLK_BUS_MCU_PWM0 + 1,
+ .hws = {
+ [CLK_MCU_PLL_AUDIO1] = &pll_audio1_clk.common.hw,
+ [CLK_MCU_PLL_AUDIO1_DIV2] = &pll_periph1_div2_clk.hw,
+ [CLK_MCU_PLL_AUDIO1_DIV5] = &pll_periph1_div5_clk.hw,
+ [CLK_MCU_AUDIO_OUT] = &audio_out_clk.common.hw,
+ [CLK_MCU_DSP] = &dsp_clk.common.hw,
+ [CLK_MCU_I2S0] = &i2s0_clk.common.hw,
+ [CLK_MCU_I2S1] = &i2s1_clk.common.hw,
+ [CLK_MCU_I2S2] = &i2s2_clk.common.hw,
+ [CLK_MCU_I2S3] = &i2s3_clk.common.hw,
+ [CLK_MCU_I2S3_ASRC] = &i2s3_asrc_clk.common.hw,
+ [CLK_BUS_MCU_I2S0] = &bus_i2s0_clk.common.hw,
+ [CLK_BUS_MCU_I2S1] = &bus_i2s1_clk.common.hw,
+ [CLK_BUS_MCU_I2S2] = &bus_i2s2_clk.common.hw,
+ [CLK_BUS_MCU_I2S3] = &bus_i2s3_clk.common.hw,
+ [CLK_MCU_SPDIF_TX] = &spdif_tx_clk.common.hw,
+ [CLK_MCU_SPDIF_RX] = &spdif_rx_clk.common.hw,
+ [CLK_BUS_MCU_SPDIF] = &bus_spdif_clk.common.hw,
+ [CLK_MCU_DMIC] = &dmic_clk.common.hw,
+ [CLK_BUS_MCU_DMIC] = &bus_dmic_clk.common.hw,
+ [CLK_MCU_AUDIO_CODEC_DAC] = &audio_dac_clk.common.hw,
+ [CLK_MCU_AUDIO_CODEC_ADC] = &audio_adc_clk.common.hw,
+ [CLK_BUS_MCU_AUDIO_CODEC] = &bus_audio_codec_clk.common.hw,
+ [CLK_BUS_MCU_DSP_MSGBOX] = &bus_dsp_msgbox_clk.common.hw,
+ [CLK_BUS_MCU_DSP_CFG] = &bus_dsp_cfg_clk.common.hw,
+ [CLK_BUS_MCU_NPU_HCLK] = &bus_npu_hclk.common.hw,
+ [CLK_BUS_MCU_NPU_ACLK] = &bus_npu_aclk.common.hw,
+ [CLK_MCU_TIMER0] = &mcu_timer0_clk.common.hw,
+ [CLK_MCU_TIMER1] = &mcu_timer1_clk.common.hw,
+ [CLK_MCU_TIMER2] = &mcu_timer2_clk.common.hw,
+ [CLK_MCU_TIMER3] = &mcu_timer3_clk.common.hw,
+ [CLK_MCU_TIMER4] = &mcu_timer4_clk.common.hw,
+ [CLK_MCU_TIMER5] = &mcu_timer5_clk.common.hw,
+ [CLK_BUS_MCU_TIMER] = &bus_mcu_timer_clk.common.hw,
+ [CLK_BUS_MCU_DMA] = &bus_mcu_dma_clk.common.hw,
+ [CLK_MCU_TZMA0] = &tzma0_clk.common.hw,
+ [CLK_MCU_TZMA1] = &tzma1_clk.common.hw,
+ [CLK_BUS_MCU_PUBSRAM] = &bus_pubsram_clk.common.hw,
+ [CLK_MCU_MBUS_DMA] = &mbus_mcu_dma_clk.common.hw,
+ [CLK_MCU_MBUS] = &mbus_mcu_clk.common.hw,
+ [CLK_MCU_RISCV] = &riscv_clk.common.hw,
+ [CLK_BUS_MCU_RISCV_CFG] = &bus_riscv_cfg_clk.common.hw,
+ [CLK_BUS_MCU_RISCV_MSGBOX] = &bus_riscv_msgbox_clk.common.hw,
+ [CLK_MCU_PWM0] = &mcu_pwm0_clk.common.hw,
+ [CLK_BUS_MCU_PWM0] = &bus_mcu_pwm0_clk.common.hw,
+ },
+};
+
+static struct ccu_reset_map sun55i_a523_mcu_ccu_resets[] = {
+ [RST_BUS_MCU_I2S0] = { 0x0040, BIT(16) },
+ [RST_BUS_MCU_I2S1] = { 0x0040, BIT(17) },
+ [RST_BUS_MCU_I2S2] = { 0x0040, BIT(18) },
+ [RST_BUS_MCU_I2S3] = { 0x0040, BIT(19) },
+ [RST_BUS_MCU_SPDIF] = { 0x004c, BIT(16) },
+ [RST_BUS_MCU_DMIC] = { 0x0054, BIT(16) },
+ [RST_BUS_MCU_AUDIO_CODEC] = { 0x0060, BIT(16) },
+ [RST_BUS_MCU_DSP_MSGBOX] = { 0x0068, BIT(16) },
+ [RST_BUS_MCU_DSP_CFG] = { 0x006c, BIT(16) },
+ [RST_BUS_MCU_NPU] = { 0x0070, BIT(16) },
+ [RST_BUS_MCU_TIMER] = { 0x008c, BIT(16) },
+ [RST_BUS_MCU_DSP_DEBUG] = { 0x0100, BIT(16) },
+ [RST_BUS_MCU_DSP] = { 0x0100, BIT(17) },
+ [RST_BUS_MCU_DMA] = { 0x0104, BIT(16) },
+ [RST_BUS_MCU_PUBSRAM] = { 0x0114, BIT(16) },
+ [RST_BUS_MCU_RISCV_CFG] = { 0x0124, BIT(16) },
+ [RST_BUS_MCU_RISCV_DEBUG] = { 0x0124, BIT(17) },
+ [RST_BUS_MCU_RISCV_CORE] = { 0x0124, BIT(18) },
+ [RST_BUS_MCU_RISCV_MSGBOX] = { 0x0128, BIT(16) },
+ [RST_BUS_MCU_PWM0] = { 0x0134, BIT(16) },
+};
+
+static const struct sunxi_ccu_desc sun55i_a523_mcu_ccu_desc = {
+ .ccu_clks = sun55i_a523_mcu_ccu_clks,
+ .num_ccu_clks = ARRAY_SIZE(sun55i_a523_mcu_ccu_clks),
+
+ .hw_clks = &sun55i_a523_mcu_hw_clks,
+
+ .resets = sun55i_a523_mcu_ccu_resets,
+ .num_resets = ARRAY_SIZE(sun55i_a523_mcu_ccu_resets),
+};
+
+static int sun55i_a523_mcu_ccu_probe(struct platform_device *pdev)
+{
+ void __iomem *reg;
+ u32 val;
+ int ret;
+
+ reg = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(reg))
+ return PTR_ERR(reg);
+
+ val = readl(reg + SUN55I_A523_PLL_AUDIO1_REG);
+
+ /*
+ * The PLL clock code does not model all bits, for instance it does
+ * not support a separate enable and gate bit. We present the
+ * gate bit(27) as the enable bit, but then have to set the
+ * PLL Enable, LDO Enable, and Lock Enable bits on all PLLs here.
+ */
+ val |= BIT(31) | BIT(30) | BIT(29);
+
+ /* Enforce p1 = 5, p0 = 2 (the default) for PLL_AUDIO1 */
+ val &= ~(GENMASK(22, 20) | GENMASK(18, 16));
+ val |= (4 << 20) | (1 << 16);
+
+ writel(val, reg + SUN55I_A523_PLL_AUDIO1_REG);
+
+ ret = devm_sunxi_ccu_probe(&pdev->dev, reg, &sun55i_a523_mcu_ccu_desc);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static const struct of_device_id sun55i_a523_mcu_ccu_ids[] = {
+ { .compatible = "allwinner,sun55i-a523-mcu-ccu" },
+ { }
+};
+
+static struct platform_driver sun55i_a523_mcu_ccu_driver = {
+ .probe = sun55i_a523_mcu_ccu_probe,
+ .driver = {
+ .name = "sun55i-a523-mcu-ccu",
+ .suppress_bind_attrs = true,
+ .of_match_table = sun55i_a523_mcu_ccu_ids,
+ },
+};
+module_platform_driver(sun55i_a523_mcu_ccu_driver);
+
+MODULE_IMPORT_NS("SUNXI_CCU");
+MODULE_DESCRIPTION("Support for the Allwinner A523 MCU CCU");
+MODULE_LICENSE("GPL");
--
2.39.5
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