* [PATCH v5 2/2] clk: sunxi-ng: add Allwinner B288 CCU driver
2026-11-13 15:49 [PATCH v5 0/2] clk: sunxi-ng: add the Allwinner B288 CCU Pablo Mazzini
2026-11-13 15:49 ` [PATCH v5 1/2] dt-bindings: clock: sun4i-a10-ccu: add Allwinner B288 Pablo Mazzini
@ 2026-11-13 15:50 ` Pablo Mazzini
1 sibling, 0 replies; 3+ messages in thread
From: Pablo Mazzini @ 2026-11-13 15:50 UTC (permalink / raw)
To: Brian Masney, Chen-Yu Tsai, Jernej Skrabec, Jerome Brunet,
Samuel Holland, Stephen Boyd
Cc: Pablo Mazzini, Andre Przywara, linux-arm-kernel, linux-clk,
linux-kernel, linux-sunxi
Covers the PLLs, the CPU/AHB/APB tree, the module clocks and the bus
gates and resets.
Signed-off-by: Pablo Mazzini <pmazzini@gmail.com>
---
drivers/clk/sunxi-ng/Kconfig | 5 +
drivers/clk/sunxi-ng/Makefile | 2 +
drivers/clk/sunxi-ng/ccu-sun8i-b288.c | 775 ++++++++++++++++++++++++++
drivers/clk/sunxi-ng/ccu-sun8i-b288.h | 10 +
4 files changed, 792 insertions(+)
create mode 100644 drivers/clk/sunxi-ng/ccu-sun8i-b288.c
create mode 100644 drivers/clk/sunxi-ng/ccu-sun8i-b288.h
diff --git a/drivers/clk/sunxi-ng/Kconfig b/drivers/clk/sunxi-ng/Kconfig
index 6af2d020e03e..5bdfb8574794 100644
--- a/drivers/clk/sunxi-ng/Kconfig
+++ b/drivers/clk/sunxi-ng/Kconfig
@@ -88,6 +88,11 @@ config SUN6I_RTC_CCU
default ARCH_SUNXI
depends on MACH_SUN8I || ARM64 || RISCV || COMPILE_TEST
+config SUN8I_B288_CCU
+ tristate "Support for the Allwinner B288 CCU"
+ default ARCH_SUNXI
+ depends on MACH_SUN8I || COMPILE_TEST
+
config SUN8I_A23_CCU
tristate "Support for the Allwinner A23 CCU"
default ARCH_SUNXI
diff --git a/drivers/clk/sunxi-ng/Makefile b/drivers/clk/sunxi-ng/Makefile
index a1c4087d7241..92755d4749b8 100644
--- a/drivers/clk/sunxi-ng/Makefile
+++ b/drivers/clk/sunxi-ng/Makefile
@@ -43,6 +43,7 @@ obj-$(CONFIG_SUN6I_RTC_CCU) += sun6i-rtc-ccu.o
obj-$(CONFIG_SUN8I_A23_CCU) += sun8i-a23-ccu.o
obj-$(CONFIG_SUN8I_A33_CCU) += sun8i-a33-ccu.o
obj-$(CONFIG_SUN8I_A83T_CCU) += sun8i-a83t-ccu.o
+obj-$(CONFIG_SUN8I_B288_CCU) += sun8i-b288-ccu.o
obj-$(CONFIG_SUN8I_H3_CCU) += sun8i-h3-ccu.o
obj-$(CONFIG_SUN8I_R40_CCU) += sun8i-r40-ccu.o
obj-$(CONFIG_SUN8I_V3S_CCU) += sun8i-v3s-ccu.o
@@ -71,6 +72,7 @@ sun6i-rtc-ccu-y += ccu-sun6i-rtc.o
sun8i-a23-ccu-y += ccu-sun8i-a23.o
sun8i-a33-ccu-y += ccu-sun8i-a33.o
sun8i-a83t-ccu-y += ccu-sun8i-a83t.o
+sun8i-b288-ccu-y += ccu-sun8i-b288.o
sun8i-h3-ccu-y += ccu-sun8i-h3.o
sun8i-r40-ccu-y += ccu-sun8i-r40.o
sun8i-v3s-ccu-y += ccu-sun8i-v3s.o
diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-b288.c b/drivers/clk/sunxi-ng/ccu-sun8i-b288.c
new file mode 100644
index 000000000000..176126b15aff
--- /dev/null
+++ b/drivers/clk/sunxi-ng/ccu-sun8i-b288.c
@@ -0,0 +1,775 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Clock Control Unit driver for the Allwinner B288 (sun8iw10p1).
+ *
+ * Closely related to the A64; most of its PLLs are bit-identical.
+ * Transcribed from the BSP clk-sun8iw10.{c,h} and cross-checked against
+ * ccu-sun50i-a64.c; divergences are called out inline.
+ *
+ * The audio clock tree (i2s/spdif/dsd/dmic/adda) is not implemented.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.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_nk.h"
+#include "ccu_nkmp.h"
+#include "ccu_nm.h"
+#include "ccu_phase.h"
+#include "ccu_sdm.h"
+
+#include "ccu-sun8i-b288.h"
+
+/*
+ * PLL_24M @ 0x034 -- B288 only. It feeds the PLLs 24 MHz whatever the
+ * crystal: it converts a 26 MHz one and is bypassed with a 24 MHz one.
+ */
+static struct clk_fixed_rate pll_24m_clk = {
+ .fixed_rate = 24000000,
+ .hw.init = CLK_HW_INIT_FW_NAME("pll-24m", "hosc",
+ &clk_fixed_rate_ops, 0),
+};
+
+static const struct clk_hw *pll_24m_hws[] = { &pll_24m_clk.hw };
+
+/*
+ * PLL_CPU @ 0x000 -- N[12:8] K[5:4] M[1:0] P[17:16], gate 31, lock 28.
+ * Identical to sun50i-a64.
+ */
+static struct ccu_nkmp pll_cpux_clk = {
+ .enable = BIT(31),
+ .lock = BIT(28),
+ .n = _SUNXI_CCU_MULT(8, 5),
+ .k = _SUNXI_CCU_MULT(4, 2),
+ .m = _SUNXI_CCU_DIV(0, 2),
+ .p = _SUNXI_CCU_DIV_MAX(16, 2, 4),
+ .common = {
+ .reg = 0x000,
+ .hw.init = CLK_HW_INIT_HWS("pll-cpux", pll_24m_hws,
+ &ccu_nkmp_ops,
+ CLK_SET_RATE_UNGATE),
+ },
+};
+
+/*
+ * PLL_AUDIO @ 0x008 -- N[14:8] M[4:0] P[19:16], gate 31, lock 28, with
+ * sigma-delta modulation for the audio rates, as on the A64 and H3. P is
+ * forced to 1 at probe, so the rates are exact.
+ */
+#define SUN8I_B288_PLL_AUDIO_REG 0x008
+
+static struct ccu_sdm_setting pll_audio_sdm_table[] = {
+ { .rate = 22579200, .pattern = 0xc0010d84, .m = 8, .n = 7 },
+ { .rate = 24576000, .pattern = 0xc000ac02, .m = 14, .n = 14 },
+};
+
+static struct ccu_nm pll_audio_base_clk = {
+ .enable = BIT(31),
+ .lock = BIT(28),
+ .n = _SUNXI_CCU_MULT(8, 7),
+ .m = _SUNXI_CCU_DIV(0, 5),
+ .sdm = _SUNXI_CCU_SDM(pll_audio_sdm_table, BIT(24),
+ 0x284, BIT(31)),
+ .common = {
+ .reg = SUN8I_B288_PLL_AUDIO_REG,
+ .features = CCU_FEATURE_SIGMA_DELTA_MOD,
+ .hw.init = CLK_HW_INIT_HWS("pll-audio-base", pll_24m_hws,
+ &ccu_nm_ops,
+ CLK_SET_RATE_UNGATE),
+ },
+};
+
+/* PLL_VIDEO0 @ 0x010 -- identical to sun50i-a64. */
+static struct ccu_nm pll_video0_clk = {
+ .enable = BIT(31),
+ .lock = BIT(28),
+ .n = _SUNXI_CCU_MULT(8, 7),
+ .m = _SUNXI_CCU_DIV(0, 4),
+ .frac = _SUNXI_CCU_FRAC(BIT(24), BIT(25), 270000000, 297000000),
+ .common = {
+ .reg = 0x010,
+ .features = CCU_FEATURE_FRACTIONAL,
+ .hw.init = CLK_HW_INIT_HWS("pll-video0", pll_24m_hws,
+ &ccu_nm_ops,
+ CLK_SET_RATE_UNGATE),
+ },
+};
+
+/*
+ * PLL_DDR0 @ 0x020 -- N[14:8] M[1:0]. Unlike the A64 there is no K,
+ * and N is 7 bits wide.
+ */
+static struct ccu_nm pll_ddr0_clk = {
+ .enable = BIT(31),
+ .lock = BIT(28),
+ .n = _SUNXI_CCU_MULT(8, 7),
+ .m = _SUNXI_CCU_DIV(0, 2),
+ .common = {
+ .reg = 0x020,
+ .hw.init = CLK_HW_INIT_HWS("pll-ddr0", pll_24m_hws,
+ &ccu_nm_ops,
+ CLK_SET_RATE_UNGATE),
+ },
+};
+
+/* PLL_PERIPH0 @ 0x028 -- identical to sun50i-a64, incl. fixed post-div 2. */
+static struct ccu_nk pll_periph0_clk = {
+ .enable = BIT(31),
+ .lock = BIT(28),
+ .n = _SUNXI_CCU_MULT(8, 5),
+ .k = _SUNXI_CCU_MULT_MIN(4, 2, 2),
+ .fixed_post_div = 2,
+ .common = {
+ .reg = 0x028,
+ .features = CCU_FEATURE_FIXED_POSTDIV,
+ .hw.init = CLK_HW_INIT_HWS("pll-periph0", pll_24m_hws,
+ &ccu_nk_ops, 0),
+ },
+};
+
+/* PLL_VIDEO1 @ 0x030 -- same layout as PLL_VIDEO0. */
+static struct ccu_nm pll_video1_clk = {
+ .enable = BIT(31),
+ .lock = BIT(28),
+ .n = _SUNXI_CCU_MULT(8, 7),
+ .m = _SUNXI_CCU_DIV(0, 4),
+ .frac = _SUNXI_CCU_FRAC(BIT(24), BIT(25), 270000000, 297000000),
+ .common = {
+ .reg = 0x030,
+ .features = CCU_FEATURE_FRACTIONAL,
+ .hw.init = CLK_HW_INIT_HWS("pll-video1", pll_24m_hws,
+ &ccu_nm_ops,
+ CLK_SET_RATE_UNGATE),
+ },
+};
+
+/* PLL_PERIPH1 @ 0x044 -- identical to sun50i-a64. */
+static struct ccu_nk pll_periph1_clk = {
+ .enable = BIT(31),
+ .lock = BIT(28),
+ .n = _SUNXI_CCU_MULT(8, 5),
+ .k = _SUNXI_CCU_MULT_MIN(4, 2, 2),
+ .fixed_post_div = 2,
+ .common = {
+ .reg = 0x044,
+ .features = CCU_FEATURE_FIXED_POSTDIV,
+ .hw.init = CLK_HW_INIT_HWS("pll-periph1", pll_24m_hws,
+ &ccu_nk_ops, 0),
+ },
+};
+
+/* PLL_DE @ 0x048 -- identical to sun50i-a64. */
+static struct ccu_nm pll_de_clk = {
+ .enable = BIT(31),
+ .lock = BIT(28),
+ .n = _SUNXI_CCU_MULT(8, 7),
+ .m = _SUNXI_CCU_DIV(0, 4),
+ .frac = _SUNXI_CCU_FRAC(BIT(24), BIT(25), 270000000, 297000000),
+ .common = {
+ .reg = 0x048,
+ .features = CCU_FEATURE_FRACTIONAL,
+ .hw.init = CLK_HW_INIT_HWS("pll-de", pll_24m_hws,
+ &ccu_nm_ops,
+ CLK_SET_RATE_UNGATE),
+ },
+};
+
+/* PLL_DDR1 @ 0x04c -- B288 only. Same layout; this is the one feeding DRAM. */
+static struct ccu_nm pll_ddr1_clk = {
+ .enable = BIT(31),
+ .lock = BIT(28),
+ .n = _SUNXI_CCU_MULT(8, 7),
+ .m = _SUNXI_CCU_DIV(0, 2),
+ .common = {
+ .reg = 0x04c,
+ .hw.init = CLK_HW_INIT_HWS("pll-ddr1", pll_24m_hws,
+ &ccu_nm_ops,
+ CLK_SET_RATE_UNGATE),
+ },
+};
+
+/*
+ * pll_periph{0,1} carry a fixed /2 post-divider, so the 2x clocks are the
+ * raw outputs.
+ */
+static CLK_FIXED_FACTOR_HW(pll_periph0_2x_clk, "pll-periph0-2x",
+ &pll_periph0_clk.common.hw,
+ 1, 2, 0);
+static CLK_FIXED_FACTOR_HW(pll_periph1_2x_clk, "pll-periph1-2x",
+ &pll_periph1_clk.common.hw,
+ 1, 2, 0);
+
+/*
+ * CPU_CFG @ 0x050 -- mux[17:16], CPUAPB divider [9:8], AXI divider [1:0].
+ * Same layout as the H3 and the A64.
+ */
+static const struct clk_parent_data cpux_parents[] = {
+ { .fw_name = "losc" },
+ { .fw_name = "hosc" },
+ { .hw = &pll_cpux_clk.common.hw },
+ { .hw = &pll_cpux_clk.common.hw },
+};
+
+static SUNXI_CCU_MUX_DATA(cpux_clk, "cpux", cpux_parents,
+ 0x050, 16, 2, CLK_IS_CRITICAL | CLK_SET_RATE_PARENT);
+
+static const struct clk_hw *cpux_hws[] = { &cpux_clk.common.hw };
+static SUNXI_CCU_M_HWS(axi_clk, "axi", cpux_hws, 0x050, 0, 2, 0);
+static SUNXI_CCU_M_HWS(cpuapb_clk, "cpuapb", cpux_hws, 0x050, 8, 2, 0);
+
+/*
+ * AHB1_CFG @ 0x054 -- mux[13:12], AHB1 P2 divider [5:4], PLL_PERIPH0-only
+ * pre-divider [7:6], APB1 divider [9:8].
+ */
+static const struct clk_parent_data ahb1_parents[] = {
+ { .fw_name = "losc" },
+ { .fw_name = "hosc" },
+ { .hw = &axi_clk.common.hw },
+ { .hw = &pll_periph0_clk.common.hw },
+};
+
+static const struct ccu_mux_var_prediv ahb1_predivs[] = {
+ { .index = 3, .shift = 6, .width = 2 },
+};
+
+static struct ccu_div ahb1_clk = {
+ .div = _SUNXI_CCU_DIV_FLAGS(4, 2, CLK_DIVIDER_POWER_OF_TWO),
+
+ .mux = {
+ .shift = 12,
+ .width = 2,
+
+ .var_predivs = ahb1_predivs,
+ .n_var_predivs = ARRAY_SIZE(ahb1_predivs),
+ },
+
+ .common = {
+ .reg = 0x054,
+ .features = CCU_FEATURE_VARIABLE_PREDIV,
+ .hw.init = CLK_HW_INIT_PARENTS_DATA("ahb1",
+ ahb1_parents,
+ &ccu_div_ops,
+ 0),
+ },
+};
+
+static struct clk_div_table apb1_div_table[] = {
+ { .val = 0, .div = 2 },
+ { .val = 1, .div = 2 },
+ { .val = 2, .div = 4 },
+ { .val = 3, .div = 8 },
+ { /* Sentinel */ },
+};
+
+static SUNXI_CCU_DIV_TABLE_HW(apb1_clk, "apb1", &ahb1_clk.common.hw,
+ 0x054, 8, 2, apb1_div_table, 0);
+
+/*
+ * APB2_CFG @ 0x058 -- M[4:0] P[17:16] mux[25:24]. The divider matches the
+ * H3, but mux index 2 selects PLL_24M here rather than PLL_PERIPH0_2X.
+ */
+static const struct clk_parent_data apb2_parents[] = {
+ { .fw_name = "losc" },
+ { .fw_name = "hosc" },
+ { .hw = &pll_24m_clk.hw },
+ { .hw = &pll_periph0_2x_clk.hw },
+};
+
+static SUNXI_CCU_MP_DATA_WITH_MUX(apb2_clk, "apb2", apb2_parents, 0x058,
+ 0, 5, /* M */
+ 16, 2, /* P */
+ 24, 2, /* mux */
+ 0);
+
+static const struct clk_parent_data mod0_parents[] = {
+ { .fw_name = "hosc" },
+ { .hw = &pll_periph0_2x_clk.hw },
+ { .hw = &pll_periph1_2x_clk.hw },
+};
+
+static const struct clk_parent_data de_parents[] = {
+ { .hw = &pll_periph0_2x_clk.hw },
+ { .hw = &pll_de_clk.common.hw },
+};
+
+static const struct clk_parent_data tcon0_parents[] = {
+ { .hw = &pll_video0_clk.common.hw },
+ { .hw = &pll_video1_clk.common.hw },
+};
+
+static const struct clk_parent_data mbus_parents[] = {
+ { .fw_name = "hosc" },
+ { .hw = &pll_periph0_2x_clk.hw },
+ { .hw = &pll_ddr0_clk.common.hw },
+ { .hw = &pll_ddr1_clk.common.hw },
+};
+
+static const struct clk_parent_data dram_parents[] = {
+ { .hw = &pll_ddr0_clk.common.hw },
+ { .hw = &pll_ddr1_clk.common.hw },
+ { .hw = &pll_periph0_2x_clk.hw },
+};
+
+/* NAND_CFG @ 0x080 -- M[3:0] P[17:16] mux[25:24] gate 31 */
+static SUNXI_CCU_MP_DATA_WITH_MUX_GATE(nand_clk, "nand", mod0_parents, 0x080,
+ 0, 4, /* M */
+ 16, 2, /* P */
+ 24, 2, /* mux */
+ BIT(31), /* gate */
+ 0);
+
+/*
+ * SD{0..3}_CFG @ 0x088/0x08c/0x090/0x094 -- same layout as NAND.
+ * mmc0/mmc1 use the old timing mode: no post-divider, and they need the
+ * sample and output phase clocks. mmc2/mmc3 halve the clock internally.
+ */
+static SUNXI_CCU_MP_DATA_WITH_MUX_GATE(mmc0_clk, "mmc0", mod0_parents, 0x088,
+ 0, 4, /* M */
+ 16, 2, /* P */
+ 24, 2, /* mux */
+ BIT(31), /* gate */
+ 0);
+static struct ccu_phase mmc0_sample_clk = {
+ .shift = 20,
+ .width = 3,
+ .common = {
+ .reg = 0x088,
+ .hw.init = CLK_HW_INIT_HW("mmc0_sample", &mmc0_clk.common.hw,
+ &ccu_phase_ops, 0),
+ },
+};
+
+static struct ccu_phase mmc0_output_clk = {
+ .shift = 8,
+ .width = 3,
+ .common = {
+ .reg = 0x088,
+ .hw.init = CLK_HW_INIT_HW("mmc0_output", &mmc0_clk.common.hw,
+ &ccu_phase_ops, 0),
+ },
+};
+
+static SUNXI_CCU_MP_DATA_WITH_MUX_GATE(mmc1_clk, "mmc1", mod0_parents, 0x08c,
+ 0, 4, /* M */
+ 16, 2, /* P */
+ 24, 2, /* mux */
+ BIT(31), /* gate */
+ 0);
+static struct ccu_phase mmc1_sample_clk = {
+ .shift = 20,
+ .width = 3,
+ .common = {
+ .reg = 0x08c,
+ .hw.init = CLK_HW_INIT_HW("mmc1_sample", &mmc1_clk.common.hw,
+ &ccu_phase_ops, 0),
+ },
+};
+
+static struct ccu_phase mmc1_output_clk = {
+ .shift = 8,
+ .width = 3,
+ .common = {
+ .reg = 0x08c,
+ .hw.init = CLK_HW_INIT_HW("mmc1_output", &mmc1_clk.common.hw,
+ &ccu_phase_ops, 0),
+ },
+};
+
+static SUNXI_CCU_MP_DATA_WITH_MUX_GATE_POSTDIV(mmc2_clk, "mmc2", mod0_parents,
+ 0x090, 0, 4, 16, 2, 24, 2,
+ BIT(31), 2, 0);
+static SUNXI_CCU_MP_DATA_WITH_MUX_GATE_POSTDIV(mmc3_clk, "mmc3", mod0_parents,
+ 0x094, 0, 4, 16, 2, 24, 2,
+ BIT(31), 2, 0);
+
+/* SPI{0..2}_CFG @ 0x0a0/0x0a4/0x0a8 -- same layout as NAND. */
+static SUNXI_CCU_MP_DATA_WITH_MUX_GATE(spi0_clk, "spi0", mod0_parents, 0x0a0,
+ 0, 4, 16, 2, 24, 2, BIT(31), 0);
+static SUNXI_CCU_MP_DATA_WITH_MUX_GATE(spi1_clk, "spi1", mod0_parents, 0x0a4,
+ 0, 4, 16, 2, 24, 2, BIT(31), 0);
+static SUNXI_CCU_MP_DATA_WITH_MUX_GATE(spi2_clk, "spi2", mod0_parents, 0x0a8,
+ 0, 4, 16, 2, 24, 2, BIT(31), 0);
+
+/* DRAM_CFG @ 0x0f4 -- M[1:0] mux[21:20] gate 31 */
+static SUNXI_CCU_M_DATA_WITH_MUX_GATE(dram_clk, "dram", dram_parents, 0x0f4,
+ 0, 2, /* M */
+ 20, 2, /* mux */
+ BIT(31), /* gate */
+ CLK_IS_CRITICAL);
+
+/* DE_CFG @ 0x104, EE_CFG @ 0x108, EDMA_CFG @ 0x10c -- M[3:0] mux[26:24] gate 31 */
+static SUNXI_CCU_M_DATA_WITH_MUX_GATE(de_clk, "de", de_parents, 0x104,
+ 0, 4, 24, 3, BIT(31), CLK_SET_RATE_PARENT);
+static SUNXI_CCU_M_DATA_WITH_MUX_GATE(ee_clk, "ee", de_parents, 0x108,
+ 0, 4, 24, 3, BIT(31), CLK_SET_RATE_PARENT);
+static SUNXI_CCU_M_DATA_WITH_MUX_GATE(edma_clk, "edma", de_parents, 0x10c,
+ 0, 4, 24, 3, BIT(31), CLK_SET_RATE_PARENT);
+
+/* TCON_CFG @ 0x118 -- mux[26:24] gate 31, no divider */
+static SUNXI_CCU_MUX_DATA_WITH_GATE(tcon0_clk, "tcon0", tcon0_parents, 0x118,
+ 24, 3, /* mux */
+ BIT(31), /* gate */
+ CLK_SET_RATE_PARENT);
+
+/* MBUS_CFG @ 0x15c -- M[2:0] mux[25:24] gate 31 */
+static SUNXI_CCU_M_DATA_WITH_MUX_GATE(mbus_clk, "mbus", mbus_parents, 0x15c,
+ 0, 3, 24, 2, BIT(31), CLK_IS_CRITICAL);
+
+static const struct clk_hw *ahb1_hws[] = { &ahb1_clk.common.hw };
+static const struct clk_hw *apb1_hws[] = { &apb1_clk.common.hw };
+static const struct clk_hw *apb2_hws[] = { &apb2_clk.common.hw };
+
+static SUNXI_CCU_GATE_HWS(bus_ths_clk, "bus-ths", apb1_hws,
+ 0x068, BIT(8), 0);
+static SUNXI_CCU_GATE_HWS(bus_nand_clk, "bus-nand", ahb1_hws,
+ 0x060, BIT(13), 0);
+static SUNXI_CCU_GATE_HWS(bus_mmc0_clk, "bus-mmc0", ahb1_hws,
+ 0x060, BIT(8), 0);
+static SUNXI_CCU_GATE_HWS(bus_mmc1_clk, "bus-mmc1", ahb1_hws,
+ 0x060, BIT(9), 0);
+static SUNXI_CCU_GATE_HWS(bus_mmc2_clk, "bus-mmc2", ahb1_hws,
+ 0x060, BIT(10), 0);
+static SUNXI_CCU_GATE_HWS(bus_mmc3_clk, "bus-mmc3", ahb1_hws,
+ 0x060, BIT(11), 0);
+static SUNXI_CCU_GATE_HWS(bus_spi0_clk, "bus-spi0", ahb1_hws,
+ 0x060, BIT(20), 0);
+static SUNXI_CCU_GATE_HWS(bus_spi1_clk, "bus-spi1", ahb1_hws,
+ 0x060, BIT(21), 0);
+static SUNXI_CCU_GATE_HWS(bus_spi2_clk, "bus-spi2", ahb1_hws,
+ 0x060, BIT(22), 0);
+static SUNXI_CCU_GATE_HWS(bus_i2s0_clk, "bus-i2s0", apb1_hws,
+ 0x068, BIT(12), 0);
+static SUNXI_CCU_GATE_HWS(bus_i2s1_clk, "bus-i2s1", apb1_hws,
+ 0x068, BIT(13), 0);
+static SUNXI_CCU_GATE_HWS(bus_spdif_clk, "bus-spdif", apb1_hws,
+ 0x068, BIT(1), 0);
+static SUNXI_CCU_GATE_HWS(bus_dsd_clk, "bus-dsd", apb1_hws,
+ 0x068, BIT(2), 0);
+static SUNXI_CCU_GATE_HWS(bus_dmic_clk, "bus-dmic", apb1_hws,
+ 0x068, BIT(3), 0);
+static SUNXI_CCU_GATE_HWS(bus_ohci0_clk, "bus-ohci0", ahb1_hws,
+ 0x060, BIT(29), 0);
+static SUNXI_CCU_GATE_HWS(bus_ehci0_clk, "bus-ehci0", ahb1_hws,
+ 0x060, BIT(26), 0);
+static SUNXI_CCU_GATE_HWS(bus_otg_clk, "bus-otg", ahb1_hws,
+ 0x060, BIT(24), 0);
+static SUNXI_CCU_GATE_HWS(bus_de_clk, "bus-de", ahb1_hws,
+ 0x064, BIT(12), 0);
+static SUNXI_CCU_GATE_HWS(bus_ee_clk, "bus-ee", ahb1_hws,
+ 0x064, BIT(13), 0);
+static SUNXI_CCU_GATE_HWS(bus_tcon0_clk, "bus-tcon0", ahb1_hws,
+ 0x064, BIT(4), 0);
+/* csi_s, csi_m and csi_misc share one bus gate, as on the A64. */
+static SUNXI_CCU_GATE_HWS(bus_csi_clk, "bus-csi", ahb1_hws,
+ 0x064, BIT(8), 0);
+static SUNXI_CCU_GATE_HWS(bus_codec_clk, "bus-codec", apb1_hws,
+ 0x068, BIT(0), 0);
+static SUNXI_CCU_GATE_HWS(bus_dram_clk, "bus-dram", ahb1_hws,
+ 0x060, BIT(14), 0);
+static SUNXI_CCU_GATE_HWS(bus_psram_clk, "bus-psram", ahb1_hws,
+ 0x060, BIT(15), 0);
+static SUNXI_CCU_GATE_HWS(bus_dma_clk, "bus-dma", ahb1_hws,
+ 0x060, BIT(6), 0);
+static SUNXI_CCU_GATE_HWS(bus_uart0_clk, "bus-uart0", apb2_hws,
+ 0x06c, BIT(16), 0);
+static SUNXI_CCU_GATE_HWS(bus_uart1_clk, "bus-uart1", apb2_hws,
+ 0x06c, BIT(17), 0);
+static SUNXI_CCU_GATE_HWS(bus_uart2_clk, "bus-uart2", apb2_hws,
+ 0x06c, BIT(18), 0);
+static SUNXI_CCU_GATE_HWS(bus_uart3_clk, "bus-uart3", apb2_hws,
+ 0x06c, BIT(19), 0);
+static SUNXI_CCU_GATE_HWS(bus_uart4_clk, "bus-uart4", apb2_hws,
+ 0x06c, BIT(20), 0);
+static SUNXI_CCU_GATE_HWS(bus_uart5_clk, "bus-uart5", apb2_hws,
+ 0x06c, BIT(21), 0);
+static SUNXI_CCU_GATE_HWS(bus_i2c0_clk, "bus-i2c0", apb2_hws,
+ 0x06c, BIT(0), 0);
+static SUNXI_CCU_GATE_HWS(bus_i2c1_clk, "bus-i2c1", apb2_hws,
+ 0x06c, BIT(1), 0);
+static SUNXI_CCU_GATE_HWS(bus_i2c2_clk, "bus-i2c2", apb2_hws,
+ 0x06c, BIT(2), 0);
+static SUNXI_CCU_GATE_HWS(bus_pio_clk, "bus-pio", apb1_hws,
+ 0x068, BIT(5), 0);
+static SUNXI_CCU_GATE_HWS(bus_gpadc_clk, "bus-gpadc", apb1_hws,
+ 0x068, BIT(10), 0);
+static SUNXI_CCU_GATE_HWS(bus_keyadc_clk, "bus-keyadc", apb1_hws,
+ 0x068, BIT(9), 0);
+/* losc_out is the RTC's osc32k-out */
+
+static const struct ccu_reset_map sun8i_b288_ccu_resets[] = {
+ [RST_BUS_THS] = { 0x2d0, BIT(8) },
+ [RST_BUS_NAND] = { 0x2c0, BIT(13) },
+ [RST_BUS_MMC0] = { 0x2c0, BIT(8) },
+ [RST_BUS_MMC1] = { 0x2c0, BIT(9) },
+ [RST_BUS_MMC2] = { 0x2c0, BIT(10) },
+ [RST_BUS_MMC3] = { 0x2c0, BIT(11) },
+ [RST_BUS_SPI0] = { 0x2c0, BIT(20) },
+ [RST_BUS_SPI1] = { 0x2c0, BIT(21) },
+ [RST_BUS_SPI2] = { 0x2c0, BIT(22) },
+ [RST_BUS_I2S0] = { 0x2d0, BIT(12) },
+ [RST_BUS_I2S1] = { 0x2d0, BIT(13) },
+ [RST_BUS_SPDIF] = { 0x2d0, BIT(1) },
+ [RST_BUS_DSD] = { 0x2d0, BIT(2) },
+ [RST_BUS_DMIC] = { 0x2d0, BIT(3) },
+ [RST_USB_PHY0] = { 0x0cc, BIT(0) },
+ [RST_BUS_OHCI0] = { 0x2c0, BIT(29) },
+ [RST_BUS_EHCI0] = { 0x2c0, BIT(26) },
+ [RST_BUS_OTG] = { 0x2c0, BIT(24) },
+ [RST_BUS_DE] = { 0x2c4, BIT(12) },
+ [RST_BUS_EE] = { 0x2c4, BIT(13) },
+ [RST_BUS_TCON0] = { 0x2c4, BIT(4) },
+ [RST_BUS_CSI] = { 0x2c4, BIT(8) },
+ [RST_BUS_CODEC] = { 0x2d0, BIT(0) },
+ [RST_BUS_WLAN] = { 0x2c4, BIT(1) },
+ [RST_MBUS] = { 0x0fc, BIT(31) },
+ [RST_BUS_DRAM] = { 0x2c0, BIT(14) },
+ [RST_BUS_PSRAM] = { 0x2c0, BIT(15) },
+ [RST_BUS_DMA] = { 0x2c0, BIT(6) },
+ [RST_BUS_UART0] = { 0x2d8, BIT(16) },
+ [RST_BUS_UART1] = { 0x2d8, BIT(17) },
+ [RST_BUS_UART2] = { 0x2d8, BIT(18) },
+ [RST_BUS_UART3] = { 0x2d8, BIT(19) },
+ [RST_BUS_UART4] = { 0x2d8, BIT(20) },
+ [RST_BUS_UART5] = { 0x2d8, BIT(21) },
+ [RST_BUS_I2C0] = { 0x2d8, BIT(0) },
+ [RST_BUS_I2C1] = { 0x2d8, BIT(1) },
+ [RST_BUS_I2C2] = { 0x2d8, BIT(2) },
+ [RST_BUS_GPADC] = { 0x2d0, BIT(10) },
+ [RST_BUS_KEYADC] = { 0x2d0, BIT(9) },
+};
+
+static struct ccu_common *sun8i_b288_ccu_clks[] = {
+ &pll_cpux_clk.common,
+ &pll_audio_base_clk.common,
+ &pll_video0_clk.common,
+ &pll_ddr0_clk.common,
+ &pll_periph0_clk.common,
+ &pll_video1_clk.common,
+ &pll_periph1_clk.common,
+ &pll_de_clk.common,
+ &pll_ddr1_clk.common,
+ &cpux_clk.common,
+ &axi_clk.common,
+ &cpuapb_clk.common,
+ &ahb1_clk.common,
+ &apb1_clk.common,
+ &apb2_clk.common,
+ &nand_clk.common,
+ &mmc0_clk.common,
+ &mmc0_sample_clk.common,
+ &mmc0_output_clk.common,
+ &mmc1_clk.common,
+ &mmc1_sample_clk.common,
+ &mmc1_output_clk.common,
+ &mmc2_clk.common,
+ &mmc3_clk.common,
+ &spi0_clk.common,
+ &spi1_clk.common,
+ &spi2_clk.common,
+ &dram_clk.common,
+ &de_clk.common,
+ &ee_clk.common,
+ &edma_clk.common,
+ &tcon0_clk.common,
+ &mbus_clk.common,
+ &bus_ths_clk.common,
+ &bus_nand_clk.common,
+ &bus_mmc0_clk.common,
+ &bus_mmc1_clk.common,
+ &bus_mmc2_clk.common,
+ &bus_mmc3_clk.common,
+ &bus_spi0_clk.common,
+ &bus_spi1_clk.common,
+ &bus_spi2_clk.common,
+ &bus_i2s0_clk.common,
+ &bus_i2s1_clk.common,
+ &bus_spdif_clk.common,
+ &bus_dsd_clk.common,
+ &bus_dmic_clk.common,
+ &bus_ohci0_clk.common,
+ &bus_ehci0_clk.common,
+ &bus_otg_clk.common,
+ &bus_de_clk.common,
+ &bus_ee_clk.common,
+ &bus_tcon0_clk.common,
+ &bus_csi_clk.common,
+ &bus_codec_clk.common,
+ &bus_dram_clk.common,
+ &bus_psram_clk.common,
+ &bus_dma_clk.common,
+ &bus_uart0_clk.common,
+ &bus_uart1_clk.common,
+ &bus_uart2_clk.common,
+ &bus_uart3_clk.common,
+ &bus_uart4_clk.common,
+ &bus_uart5_clk.common,
+ &bus_i2c0_clk.common,
+ &bus_i2c1_clk.common,
+ &bus_i2c2_clk.common,
+ &bus_pio_clk.common,
+ &bus_gpadc_clk.common,
+ &bus_keyadc_clk.common,
+};
+
+static struct clk_hw_onecell_data sun8i_b288_hw_clks = {
+ .hws = {
+ [CLK_PLL_CPUX] = &pll_cpux_clk.common.hw,
+ [CLK_PLL_AUDIO_BASE] = &pll_audio_base_clk.common.hw,
+ [CLK_PLL_VIDEO0] = &pll_video0_clk.common.hw,
+ [CLK_PLL_DDR0] = &pll_ddr0_clk.common.hw,
+ [CLK_PLL_PERIPH0] = &pll_periph0_clk.common.hw,
+ [CLK_PLL_VIDEO1] = &pll_video1_clk.common.hw,
+ [CLK_PLL_24M] = &pll_24m_clk.hw,
+ [CLK_PLL_PERIPH1] = &pll_periph1_clk.common.hw,
+ [CLK_PLL_DE] = &pll_de_clk.common.hw,
+ [CLK_PLL_DDR1] = &pll_ddr1_clk.common.hw,
+ [CLK_PLL_PERIPH0_2X] = &pll_periph0_2x_clk.hw,
+ [CLK_PLL_PERIPH1_2X] = &pll_periph1_2x_clk.hw,
+ [CLK_CPUX] = &cpux_clk.common.hw,
+ [CLK_AXI] = &axi_clk.common.hw,
+ [CLK_CPUAPB] = &cpuapb_clk.common.hw,
+ [CLK_AHB1] = &ahb1_clk.common.hw,
+ [CLK_APB1] = &apb1_clk.common.hw,
+ [CLK_APB2] = &apb2_clk.common.hw,
+ [CLK_NAND] = &nand_clk.common.hw,
+ [CLK_MMC0] = &mmc0_clk.common.hw,
+ [CLK_MMC0_SAMPLE] = &mmc0_sample_clk.common.hw,
+ [CLK_MMC0_OUTPUT] = &mmc0_output_clk.common.hw,
+ [CLK_MMC1] = &mmc1_clk.common.hw,
+ [CLK_MMC1_SAMPLE] = &mmc1_sample_clk.common.hw,
+ [CLK_MMC1_OUTPUT] = &mmc1_output_clk.common.hw,
+ [CLK_MMC2] = &mmc2_clk.common.hw,
+ [CLK_MMC3] = &mmc3_clk.common.hw,
+ [CLK_SPI0] = &spi0_clk.common.hw,
+ [CLK_SPI1] = &spi1_clk.common.hw,
+ [CLK_SPI2] = &spi2_clk.common.hw,
+ [CLK_DRAM] = &dram_clk.common.hw,
+ [CLK_DE] = &de_clk.common.hw,
+ [CLK_EE] = &ee_clk.common.hw,
+ [CLK_EDMA] = &edma_clk.common.hw,
+ [CLK_TCON0] = &tcon0_clk.common.hw,
+ [CLK_MBUS] = &mbus_clk.common.hw,
+ [CLK_BUS_THS] = &bus_ths_clk.common.hw,
+ [CLK_BUS_NAND] = &bus_nand_clk.common.hw,
+ [CLK_BUS_MMC0] = &bus_mmc0_clk.common.hw,
+ [CLK_BUS_MMC1] = &bus_mmc1_clk.common.hw,
+ [CLK_BUS_MMC2] = &bus_mmc2_clk.common.hw,
+ [CLK_BUS_MMC3] = &bus_mmc3_clk.common.hw,
+ [CLK_BUS_SPI0] = &bus_spi0_clk.common.hw,
+ [CLK_BUS_SPI1] = &bus_spi1_clk.common.hw,
+ [CLK_BUS_SPI2] = &bus_spi2_clk.common.hw,
+ [CLK_BUS_I2S0] = &bus_i2s0_clk.common.hw,
+ [CLK_BUS_I2S1] = &bus_i2s1_clk.common.hw,
+ [CLK_BUS_SPDIF] = &bus_spdif_clk.common.hw,
+ [CLK_BUS_DSD] = &bus_dsd_clk.common.hw,
+ [CLK_BUS_DMIC] = &bus_dmic_clk.common.hw,
+ [CLK_BUS_OHCI0] = &bus_ohci0_clk.common.hw,
+ [CLK_BUS_EHCI0] = &bus_ehci0_clk.common.hw,
+ [CLK_BUS_OTG] = &bus_otg_clk.common.hw,
+ [CLK_BUS_DE] = &bus_de_clk.common.hw,
+ [CLK_BUS_EE] = &bus_ee_clk.common.hw,
+ [CLK_BUS_TCON0] = &bus_tcon0_clk.common.hw,
+ [CLK_BUS_CSI] = &bus_csi_clk.common.hw,
+ [CLK_BUS_CODEC] = &bus_codec_clk.common.hw,
+ [CLK_BUS_DRAM] = &bus_dram_clk.common.hw,
+ [CLK_BUS_PSRAM] = &bus_psram_clk.common.hw,
+ [CLK_BUS_DMA] = &bus_dma_clk.common.hw,
+ [CLK_BUS_UART0] = &bus_uart0_clk.common.hw,
+ [CLK_BUS_UART1] = &bus_uart1_clk.common.hw,
+ [CLK_BUS_UART2] = &bus_uart2_clk.common.hw,
+ [CLK_BUS_UART3] = &bus_uart3_clk.common.hw,
+ [CLK_BUS_UART4] = &bus_uart4_clk.common.hw,
+ [CLK_BUS_UART5] = &bus_uart5_clk.common.hw,
+ [CLK_BUS_I2C0] = &bus_i2c0_clk.common.hw,
+ [CLK_BUS_I2C1] = &bus_i2c1_clk.common.hw,
+ [CLK_BUS_I2C2] = &bus_i2c2_clk.common.hw,
+ [CLK_BUS_PIO] = &bus_pio_clk.common.hw,
+ [CLK_BUS_GPADC] = &bus_gpadc_clk.common.hw,
+ [CLK_BUS_KEYADC] = &bus_keyadc_clk.common.hw,
+ },
+ .num = CLK_NUMBER,
+};
+
+static const struct sunxi_ccu_desc sun8i_b288_ccu_desc = {
+ .ccu_clks = sun8i_b288_ccu_clks,
+ .num_ccu_clks = ARRAY_SIZE(sun8i_b288_ccu_clks),
+
+ .hw_clks = &sun8i_b288_hw_clks,
+
+ .resets = sun8i_b288_ccu_resets,
+ .num_resets = ARRAY_SIZE(sun8i_b288_ccu_resets),
+
+};
+
+static struct ccu_pll_nb sun8i_b288_pll_cpu_nb = {
+ .common = &pll_cpux_clk.common,
+ /* copy from pll_cpux_clk */
+ .enable = BIT(31),
+ .lock = BIT(28),
+};
+
+static struct ccu_mux_nb sun8i_b288_cpu_nb = {
+ .common = &cpux_clk.common,
+ .cm = &cpux_clk.mux,
+ .delay_us = 1, /* > 8 clock cycles at 24 MHz */
+ .bypass_index = 1, /* index of 24 MHz oscillator */
+};
+
+static int sun8i_b288_ccu_probe(struct platform_device *pdev)
+{
+ void __iomem *reg;
+ int ret;
+ u32 val;
+
+ reg = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(reg))
+ return PTR_ERR(reg);
+
+ /* Force the PLL-Audio-1x divider to 1 */
+ val = readl(reg + SUN8I_B288_PLL_AUDIO_REG);
+ val &= ~GENMASK(19, 16);
+ writel(val, reg + SUN8I_B288_PLL_AUDIO_REG);
+
+ ret = devm_sunxi_ccu_probe(&pdev->dev, reg, &sun8i_b288_ccu_desc);
+ if (ret)
+ return ret;
+
+ /* Gate then ungate PLL CPU after any rate changes */
+ ccu_pll_notifier_register(&sun8i_b288_pll_cpu_nb);
+
+ /* Reparent CPU during PLL CPU rate changes */
+ ccu_mux_notifier_register(pll_cpux_clk.common.hw.clk,
+ &sun8i_b288_cpu_nb);
+
+ return 0;
+}
+
+static const struct of_device_id sun8i_b288_ccu_ids[] = {
+ { .compatible = "allwinner,sun8i-b288-ccu" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, sun8i_b288_ccu_ids);
+
+static struct platform_driver sun8i_b288_ccu_driver = {
+ .probe = sun8i_b288_ccu_probe,
+ .driver = {
+ .name = "sun8i-b288-ccu",
+ .suppress_bind_attrs = true,
+ .of_match_table = sun8i_b288_ccu_ids,
+ },
+};
+module_platform_driver(sun8i_b288_ccu_driver);
+
+MODULE_IMPORT_NS("SUNXI_CCU");
+MODULE_DESCRIPTION("Allwinner B288 (sun8iw10p1) CCU driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-b288.h b/drivers/clk/sunxi-ng/ccu-sun8i-b288.h
new file mode 100644
index 000000000000..805df2d6d99c
--- /dev/null
+++ b/drivers/clk/sunxi-ng/ccu-sun8i-b288.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _CCU_SUN8I_B288_H_
+#define _CCU_SUN8I_B288_H_
+
+#include <dt-bindings/clock/sun8i-b288-ccu.h>
+#include <dt-bindings/reset/sun8i-b288-ccu.h>
+
+#define CLK_NUMBER (CLK_MMC1_OUTPUT + 1)
+
+#endif /* _CCU_SUN8I_B288_H_ */
--
2.52.0
^ permalink raw reply related [flat|nested] 3+ messages in thread