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Wed, 10 Jan 2024 08:36:02 -0800 (PST) Received: from [127.0.1.1] ([2601:1c2:1800:f680:858a:4f95:cb29:907c]) by smtp.gmail.com with ESMTPSA id p20-20020a170903249400b001d4b5e444d2sm3872265plw.48.2024.01.10.08.36.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Jan 2024 08:36:01 -0800 (PST) From: Drew Fustini Date: Wed, 10 Jan 2024 08:35:17 -0800 Subject: [PATCH RFC 3/3] clk: thead: add support for T-HEAD TH1520 AP clocks Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20240110-clk-th1520-v1-3-8b0682567984@tenstorrent.com> References: <20240110-clk-th1520-v1-0-8b0682567984@tenstorrent.com> In-Reply-To: <20240110-clk-th1520-v1-0-8b0682567984@tenstorrent.com> To: Jisheng Zhang , Guo Ren , Fu Wei , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Yangtao Li Cc: linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, Emil Renner Berthing , Han Gao , Xi Ruoyao , Robert Nelson , Jason Kridner , Drew Fustini , Drew Fustini X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1704904555; l=31965; i=dfustini@tenstorrent.com; s=20230430; h=from:subject:message-id; bh=/jOHn9yebDol6BEkjK2u01nJ4IRPrjv930uEHxTmIew=; b=mwdzay3EeZClphTGy6gy5mqwf11gFd/WZi3sqGO1DM/QKtv1p5a+jdybDWKFk8G9mtZnzHFU+ 9Kj3OODj9LwB4WM3vodMBYJ+XIruIbt1xos8m6DUrrd84LCNLUlB8oK X-Developer-Key: i=dfustini@tenstorrent.com; a=ed25519; pk=p3GKE9XFmjhwAayAHG4U108yag7V8xQVd4zJLdW0g7g= From: Jisheng Zhang Add support for the AP sub system clock controller in the T-HEAD TH1520. This include CPU, DPU, GMAC and TEE PLLs. Link: https://openbeagle.org/beaglev-ahead/beaglev-ahead/-/blob/main/docs/TH1520%20System%20User%20Manual.pdf Co-developed-by: Yangtao Li Signed-off-by: Yangtao Li Signed-off-by: Jisheng Zhang [rebased on linux-next-20240110] [fixed checkpatch warnings] [corrected npu_clk enable bit and c910_i0_clk reg] [revised commit description] Signed-off-by: Drew Fustini --- MAINTAINERS | 1 + drivers/clk/Kconfig | 1 + drivers/clk/Makefile | 1 + drivers/clk/thead/Kconfig | 12 + drivers/clk/thead/Makefile | 2 + drivers/clk/thead/clk-th1520-ap.c | 1018 +++++++++++++++++++++++++++++++++++++ 6 files changed, 1035 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index dd2398512fc0..19efec5cd0b6 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -18858,6 +18858,7 @@ L: linux-riscv@lists.infradead.org S: Maintained F: Documentation/devicetree/bindings/clock/thead,th1520-clk-ap.yaml F: arch/riscv/boot/dts/thead/ +F: drivers/clk/thead/clk-th1520-ap.c F: include/dt-bindings/clock/thead,th1520-clk.h RNBD BLOCK DRIVERS diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index 50af5fc7f570..c9057e41df34 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -494,6 +494,7 @@ source "drivers/clk/starfive/Kconfig" source "drivers/clk/sunxi/Kconfig" source "drivers/clk/sunxi-ng/Kconfig" source "drivers/clk/tegra/Kconfig" +source "drivers/clk/thead/Kconfig" source "drivers/clk/stm32/Kconfig" source "drivers/clk/ti/Kconfig" source "drivers/clk/uniphier/Kconfig" diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index 14fa8d4ecc1f..2eafc268f498 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -126,6 +126,7 @@ obj-y += starfive/ obj-$(CONFIG_ARCH_SUNXI) += sunxi/ obj-y += sunxi-ng/ obj-$(CONFIG_ARCH_TEGRA) += tegra/ +obj-$(CONFIG_ARCH_THEAD) += thead/ obj-y += ti/ obj-$(CONFIG_CLK_UNIPHIER) += uniphier/ obj-$(CONFIG_ARCH_U8500) += ux500/ diff --git a/drivers/clk/thead/Kconfig b/drivers/clk/thead/Kconfig new file mode 100644 index 000000000000..1710d50bf9d4 --- /dev/null +++ b/drivers/clk/thead/Kconfig @@ -0,0 +1,12 @@ +#SPDX-License-Identifier: GPL-2.0 + +config CLK_THEAD_TH1520_AP + bool "T-HEAD TH1520 AP clock support" + depends on ARCH_THEAD || COMPILE_TEST + default ARCH_THEAD + select REGMAP_MMIO + help + Say yes here to support the AP sub system clock controller + on the T-HEAD TH1520 SoC. This includes configuration of + both CPU PLLs, both DPU PLLs as well as the GMAC, VIDEO, + and TEE PLLs. diff --git a/drivers/clk/thead/Makefile b/drivers/clk/thead/Makefile new file mode 100644 index 000000000000..7ee0bec1f251 --- /dev/null +++ b/drivers/clk/thead/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_CLK_THEAD_TH1520_AP) += clk-th1520-ap.o diff --git a/drivers/clk/thead/clk-th1520-ap.c b/drivers/clk/thead/clk-th1520-ap.c new file mode 100644 index 000000000000..18bb6200eb82 --- /dev/null +++ b/drivers/clk/thead/clk-th1520-ap.c @@ -0,0 +1,1018 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2023 Jisheng Zhang + * Copyright (C) 2023 Vivo Communication Technology Co. Ltd. + * Authors: Yangtao Li + */ + +#include +#include +#include +#include +#include +#include + +struct ccu_internal { + u8 shift; + u8 width; +}; + +struct ccu_div_internal { + u8 shift; + u8 width; + u32 flags; +}; + +struct ccu_common { + struct regmap *map; + u16 reg; + struct clk_hw hw; +}; + +struct ccu_mux { + struct ccu_internal mux; + struct ccu_common common; +}; + +struct ccu_gate { + u32 enable; + struct ccu_common common; +}; + +struct ccu_div { + u32 enable; + struct ccu_div_internal div; + struct ccu_internal mux; + struct ccu_common common; +}; + +/* + * struct ccu_mdiv - Definition of an M-D-I-V clock + * + * Clocks based on the formula (parent * M) / (D * I * V) + */ +struct ccu_mdiv { + struct ccu_internal m; + struct ccu_internal d; + struct ccu_internal i; + struct ccu_internal v; + struct ccu_common common; +}; + +#define TH_CCU_ARG(_shift, _width) \ + { \ + .shift = _shift, \ + .width = _width, \ + } + +#define TH_CCU_DIV_FLAGS(_shift, _width, _flags) \ + { \ + .shift = _shift, \ + .width = _width, \ + .flags = _flags, \ + } + +#define CCU_GATE(_struct, _name, _parent, _reg, _gate, _flags) \ + struct ccu_gate _struct = { \ + .enable = _gate, \ + .common = { \ + .reg = _reg, \ + .hw.init = CLK_HW_INIT(_name, \ + _parent, \ + &ccu_gate_ops, \ + _flags), \ + } \ + } + +static inline struct ccu_common *hw_to_ccu_common(struct clk_hw *hw) +{ + return container_of(hw, struct ccu_common, hw); +} + +static inline struct ccu_mux *hw_to_ccu_mux(struct clk_hw *hw) +{ + struct ccu_common *common = hw_to_ccu_common(hw); + + return container_of(common, struct ccu_mux, common); +} + +static inline struct ccu_mdiv *hw_to_ccu_mdiv(struct clk_hw *hw) +{ + struct ccu_common *common = hw_to_ccu_common(hw); + + return container_of(common, struct ccu_mdiv, common); +} + +static inline struct ccu_div *hw_to_ccu_div(struct clk_hw *hw) +{ + struct ccu_common *common = hw_to_ccu_common(hw); + + return container_of(common, struct ccu_div, common); +} + +static inline struct ccu_gate *hw_to_ccu_gate(struct clk_hw *hw) +{ + struct ccu_common *common = hw_to_ccu_common(hw); + + return container_of(common, struct ccu_gate, common); +} + +static u8 ccu_get_parent_helper(struct ccu_common *common, + struct ccu_internal *mux) +{ + unsigned int val; + u8 parent; + + regmap_read(common->map, common->reg, &val); + parent = val >> mux->shift; + parent &= GENMASK(mux->width - 1, 0); + + return parent; +} + +static int ccu_set_parent_helper(struct ccu_common *common, + struct ccu_internal *mux, + u8 index) +{ + return regmap_update_bits(common->map, common->reg, + GENMASK(mux->width - 1, 0) << mux->shift, + index << mux->shift); +} + +static u8 ccu_mux_get_parent(struct clk_hw *hw) +{ + struct ccu_mux *cm = hw_to_ccu_mux(hw); + + return ccu_get_parent_helper(&cm->common, &cm->mux); +} + +static int ccu_mux_set_parent(struct clk_hw *hw, u8 index) +{ + struct ccu_mux *cm = hw_to_ccu_mux(hw); + + return ccu_set_parent_helper(&cm->common, &cm->mux, index); +} + +static const struct clk_ops ccu_mux_ops = { + .get_parent = ccu_mux_get_parent, + .set_parent = ccu_mux_set_parent, + .determine_rate = __clk_mux_determine_rate, +}; + +void ccu_disable_helper(struct ccu_common *common, u32 gate) +{ + if (!gate) + return; + + regmap_update_bits(common->map, common->reg, + gate, ~gate); +} + +int ccu_enable_helper(struct ccu_common *common, u32 gate) +{ + if (!gate) + return 0; + + return regmap_update_bits(common->map, common->reg, + gate, gate); +} + +static int ccu_is_enabled_helper(struct ccu_common *common, u32 gate) +{ + unsigned int val; + + if (!gate) + return true; + + regmap_read(common->map, common->reg, &val); + return val & gate; +} + +static int ccu_gate_is_enabled(struct clk_hw *hw) +{ + struct ccu_gate *cg = hw_to_ccu_gate(hw); + + return ccu_is_enabled_helper(&cg->common, cg->enable); +} + +static void ccu_gate_disable(struct clk_hw *hw) +{ + struct ccu_gate *cg = hw_to_ccu_gate(hw); + + ccu_disable_helper(&cg->common, cg->enable); +} + +static int ccu_gate_enable(struct clk_hw *hw) +{ + struct ccu_gate *cg = hw_to_ccu_gate(hw); + + return ccu_enable_helper(&cg->common, cg->enable); +} + +static const struct clk_ops ccu_gate_ops = { + .disable = ccu_gate_disable, + .enable = ccu_gate_enable, + .is_enabled = ccu_gate_is_enabled, +}; + +static unsigned long ccu_div_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct ccu_div *cd = hw_to_ccu_div(hw); + unsigned int val; + + regmap_read(cd->common.map, cd->common.reg, &val); + val = val >> cd->div.shift; + val &= GENMASK(cd->div.width - 1, 0); + + val = divider_recalc_rate(hw, parent_rate, val, NULL, + cd->div.flags, cd->div.width); + + return val; +} + +static u8 ccu_div_get_parent(struct clk_hw *hw) +{ + struct ccu_div *cd = hw_to_ccu_div(hw); + + return ccu_get_parent_helper(&cd->common, &cd->mux); +} + +static int ccu_div_set_parent(struct clk_hw *hw, u8 index) +{ + struct ccu_div *cd = hw_to_ccu_div(hw); + + return ccu_set_parent_helper(&cd->common, &cd->mux, index); +} + +static void ccu_div_disable(struct clk_hw *hw) +{ + struct ccu_div *cd = hw_to_ccu_div(hw); + + ccu_disable_helper(&cd->common, cd->enable); +} + +static int ccu_div_enable(struct clk_hw *hw) +{ + struct ccu_div *cd = hw_to_ccu_div(hw); + + return ccu_enable_helper(&cd->common, cd->enable); +} + +static int ccu_div_is_enabled(struct clk_hw *hw) +{ + struct ccu_div *cd = hw_to_ccu_div(hw); + + return ccu_is_enabled_helper(&cd->common, cd->enable); +} + +static const struct clk_ops ccu_div_ops = { + .disable = ccu_div_disable, + .enable = ccu_div_enable, + .is_enabled = ccu_div_is_enabled, + .get_parent = ccu_div_get_parent, + .set_parent = ccu_div_set_parent, + .recalc_rate = ccu_div_recalc_rate, + .determine_rate = clk_hw_determine_rate_no_reparent, +}; + +static unsigned long ccu_mdiv_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct ccu_mdiv *mdiv = hw_to_ccu_mdiv(hw); + unsigned long div, rate = parent_rate; + unsigned int m, d, i, v, val; + + regmap_read(mdiv->common.map, mdiv->common.reg, &val); + + m = val >> mdiv->m.shift; + m &= GENMASK(mdiv->m.width - 1, 0); + + d = val >> mdiv->d.shift; + d &= GENMASK(mdiv->d.width - 1, 0); + + i = val >> mdiv->i.shift; + i &= GENMASK(mdiv->i.width - 1, 0); + + v = val >> mdiv->v.shift; + v &= GENMASK(mdiv->v.width - 1, 0); + + rate = parent_rate * m; + div = d * i * v; + do_div(rate, div); + + return rate; +} + +static const struct clk_ops clk_mdiv_ops = { + .recalc_rate = ccu_mdiv_recalc_rate, +}; + +static struct ccu_mdiv cpu_pll0_clk = { + .m = TH_CCU_ARG(8, 12), + .d = TH_CCU_ARG(24, 3), + .i = TH_CCU_ARG(20, 3), + .v = TH_CCU_ARG(0, 6), + .common = { + .reg = 0x000, + .hw.init = CLK_HW_INIT("cpu-pll0", "osc_24m", + &clk_mdiv_ops, + 0), + }, +}; + +static struct ccu_mdiv cpu_pll1_clk = { + .m = TH_CCU_ARG(8, 12), + .d = TH_CCU_ARG(24, 3), + .i = TH_CCU_ARG(20, 3), + .v = TH_CCU_ARG(0, 6), + .common = { + .reg = 0x010, + .hw.init = CLK_HW_INIT("cpu-pll1", "osc_24m", + &clk_mdiv_ops, + 0), + }, +}; + +static struct ccu_mdiv gmac_pll_clk = { + .m = TH_CCU_ARG(8, 12), + .d = TH_CCU_ARG(24, 3), + .i = TH_CCU_ARG(20, 3), + .v = TH_CCU_ARG(0, 6), + .common = { + .reg = 0x020, + .hw.init = CLK_HW_INIT("gmac-pll", "osc_24m", + &clk_mdiv_ops, + 0), + }, +}; + +static struct ccu_mdiv video_pll_clk = { + .m = TH_CCU_ARG(8, 12), + .d = TH_CCU_ARG(24, 3), + .i = TH_CCU_ARG(20, 3), + .v = TH_CCU_ARG(0, 6), + .common = { + .reg = 0x030, + .hw.init = CLK_HW_INIT("video-pll", "osc_24m", + &clk_mdiv_ops, + 0), + }, +}; + +static struct ccu_mdiv dpu0_pll_clk = { + .m = TH_CCU_ARG(8, 12), + .d = TH_CCU_ARG(24, 3), + .i = TH_CCU_ARG(20, 3), + .v = TH_CCU_ARG(0, 6), + .common = { + .reg = 0x040, + .hw.init = CLK_HW_INIT("dpu0-pll", "osc_24m", + &clk_mdiv_ops, + 0), + }, +}; + +static struct ccu_mdiv dpu1_pll_clk = { + .m = TH_CCU_ARG(8, 12), + .d = TH_CCU_ARG(24, 3), + .i = TH_CCU_ARG(20, 3), + .v = TH_CCU_ARG(0, 6), + .common = { + .reg = 0x050, + .hw.init = CLK_HW_INIT("dpu1-pll", "osc_24m", + &clk_mdiv_ops, + 0), + }, +}; + +static struct ccu_mdiv tee_pll_clk = { + .m = TH_CCU_ARG(8, 12), + .d = TH_CCU_ARG(24, 3), + .i = TH_CCU_ARG(20, 3), + .v = TH_CCU_ARG(0, 6), + .common = { + .reg = 0x060, + .hw.init = CLK_HW_INIT("tee-pll", "osc_24m", + &clk_mdiv_ops, + 0), + }, +}; + +static const char * const c910_i0_parents[] = { "cpu-pll0", "osc_24m" }; +struct ccu_mux c910_i0_clk = { + .mux = TH_CCU_ARG(1, 1), + .common = { + .reg = 0x100, + .hw.init = CLK_HW_INIT_PARENTS("c910-i0", + c910_i0_parents, + &ccu_mux_ops, + 0), + } +}; + +static const char * const c910_parents[] = { "c910-i0", "cpu-pll1" }; +struct ccu_mux c910_clk = { + .mux = TH_CCU_ARG(0, 1), + .common = { + .reg = 0x100, + .hw.init = CLK_HW_INIT_PARENTS("c910", + c910_parents, + &ccu_mux_ops, + 0), + } +}; + +static CCU_GATE(brom_clk, "brom", "ahb2-cpusys-hclk", + 0x100, BIT(4), 0); + +static CCU_GATE(bmu_clk, "bmu", "axi4-cpusys2-aclk", + 0x100, BIT(5), 0); + +static const char * const ahb2_cpusys_parents[] = { "gmac-pll", "osc_24m" }; +static struct ccu_div ahb2_cpusys_hclk = { + .div = TH_CCU_DIV_FLAGS(0, 3, CLK_DIVIDER_ONE_BASED), + .mux = TH_CCU_ARG(5, 1), + .common = { + .reg = 0x120, + .hw.init = CLK_HW_INIT_PARENTS("ahb2-cpusys-hclk", + ahb2_cpusys_parents, + &ccu_div_ops, + 0), + }, +}; + +static struct ccu_div apb3_cpusys_pclk = { + .div = TH_CCU_ARG(0, 3), + .common = { + .reg = 0x130, + .hw.init = CLK_HW_INIT("apb3-cpusys-pclk", "ahb2-cpusys-hclk", + &ccu_div_ops, + 0), + }, +}; + +static struct ccu_div axi4_cpusys2_aclk = { + .div = TH_CCU_DIV_FLAGS(0, 3, CLK_DIVIDER_ONE_BASED), + .common = { + .reg = 0x134, + .hw.init = CLK_HW_INIT("axi4-cpusys2-aclk", "gmac-pll", + &ccu_div_ops, + 0), + }, +}; + +static CCU_GATE(aon2cpu_a2x_clk, "aon2cpu-a2x", "axi4-cpusys2-aclk", + 0x134, BIT(8), 0); + +static CCU_GATE(x2x_cpusys_clk, "x2x-cpusys", "axi4-cpusys2-aclk", + 0x134, BIT(7), 0); + +static const char * const axi_parents[] = { "video-pll", "osc_24m" }; +static struct ccu_div axi_aclk = { + .div = TH_CCU_DIV_FLAGS(0, 4, CLK_DIVIDER_ONE_BASED), + .mux = TH_CCU_ARG(5, 1), + .common = { + .reg = 0x138, + .hw.init = CLK_HW_INIT_PARENTS("axi-aclk", + axi_parents, + &ccu_div_ops, + 0), + }, +}; + +static CCU_GATE(cpu2aon_x2h_clk, "cpu2aon-x2h", "axi-aclk", + 0x138, BIT(8), 0); + +static const char * const perisys_ahb_hclk_parents[] = { "gmac-pll", "osc_24m" }; +static struct ccu_div perisys_ahb_hclk = { + .enable = BIT(6), + .div = TH_CCU_DIV_FLAGS(0, 4, CLK_DIVIDER_ONE_BASED), + .mux = TH_CCU_ARG(5, 1), + .common = { + .reg = 0x140, + .hw.init = CLK_HW_INIT_PARENTS("perisys-ahb-hclk", + perisys_ahb_hclk_parents, + &ccu_div_ops, + 0), + }, +}; + +static CCU_GATE(cpu2peri_x2h_clk, "cpu2peri-x2h", "axi4-cpusys2-aclk", + 0x140, BIT(9), 0); + +static struct ccu_div perisys_apb_pclk = { + .div = TH_CCU_ARG(0, 3), + .common = { + .reg = 0x150, + .hw.init = CLK_HW_INIT("perisys-apb-pclk", "perisys-ahb-hclk", + &ccu_div_ops, + 0), + }, +}; + +static struct ccu_div peri2sys_apb_pclk = { + .div = TH_CCU_DIV_FLAGS(4, 3, CLK_DIVIDER_ONE_BASED), + .common = { + .reg = 0x150, + .hw.init = CLK_HW_INIT("peri2sys-apb-pclk", + "gmac-pll", + &ccu_div_ops, + 0), + }, +}; + +static CCU_GATE(perisys_apb1_hclk, "perisys-apb1-hclk", "perisys-ahb-hclk", + 0x150, BIT(9), 0); + +static CCU_GATE(perisys_apb2_hclk, "perisys-apb2-hclk", "perisys-ahb-hclk", + 0x150, BIT(10), 0); + +static CCU_GATE(perisys_apb3_hclk, "perisys-apb3-hclk", "perisys-ahb-hclk", + 0x150, BIT(11), 0); + +static CCU_GATE(perisys_apb4_hclk, "perisys-apb4-hclk", "perisys-ahb-hclk", + 0x150, BIT(12), 0); + +static CLK_FIXED_FACTOR_FW_NAME(osc12m_clk, "osc_12m", "osc_24m", 2, 1, 0); + +static const char * const out_parents[] = { "osc_24m", "osc_12m" }; + +static struct ccu_div out1_clk = { + .enable = BIT(5), + .div = TH_CCU_DIV_FLAGS(0, 3, CLK_DIVIDER_ONE_BASED), + .mux = TH_CCU_ARG(4, 1), + .common = { + .reg = 0x1b4, + .hw.init = CLK_HW_INIT_PARENTS("out1", + out_parents, + &ccu_div_ops, + 0), + }, +}; + +static struct ccu_div out2_clk = { + .enable = BIT(5), + .div = TH_CCU_DIV_FLAGS(0, 3, CLK_DIVIDER_ONE_BASED), + .mux = TH_CCU_ARG(4, 1), + .common = { + .reg = 0x1b8, + .hw.init = CLK_HW_INIT_PARENTS("out2", + out_parents, + &ccu_div_ops, + 0), + }, +}; + +static struct ccu_div out3_clk = { + .enable = BIT(5), + .div = TH_CCU_DIV_FLAGS(0, 3, CLK_DIVIDER_ONE_BASED), + .mux = TH_CCU_ARG(4, 1), + .common = { + .reg = 0x1bc, + .hw.init = CLK_HW_INIT_PARENTS("out3", + out_parents, + &ccu_div_ops, + 0), + }, +}; + +static struct ccu_div out4_clk = { + .enable = BIT(5), + .div = TH_CCU_DIV_FLAGS(0, 3, CLK_DIVIDER_ONE_BASED), + .mux = TH_CCU_ARG(4, 1), + .common = { + .reg = 0x1c0, + .hw.init = CLK_HW_INIT_PARENTS("out4", + out_parents, + &ccu_div_ops, + 0), + }, +}; + +static const char * const apb_parents[] = { "gmac-pll", "osc_24m" }; +static struct ccu_div apb_pclk = { + .enable = BIT(5), + .div = TH_CCU_DIV_FLAGS(0, 4, CLK_DIVIDER_ONE_BASED), + .mux = TH_CCU_ARG(7, 1), + .common = { + .reg = 0x1c4, + .hw.init = CLK_HW_INIT_PARENTS("apb-pclk", + apb_parents, + &ccu_div_ops, + 0), + }, +}; + +static const char * const npu_parents[] = { "gmac-pll", "video-pll" }; +static struct ccu_div npu_clk = { + .enable = BIT(4), + .div = TH_CCU_DIV_FLAGS(0, 3, CLK_DIVIDER_ONE_BASED), + .mux = TH_CCU_ARG(6, 1), + .common = { + .reg = 0x1c8, + .hw.init = CLK_HW_INIT_PARENTS("npu", + npu_parents, + &ccu_div_ops, + 0), + }, +}; + +static CCU_GATE(npu_axi_clk, "npu-axi", "npu-ahb", + 0x1c8, BIT(5), 0); + +static struct ccu_div vi_clk = { + .div = TH_CCU_DIV_FLAGS(16, 4, CLK_DIVIDER_ONE_BASED), + .common = { + .reg = 0x1d0, + .hw.init = CLK_HW_INIT("vi", + "video-pll", + &ccu_div_ops, + 0), + }, +}; + +static struct ccu_div vi_ahb_clk = { + .div = TH_CCU_DIV_FLAGS(0, 4, CLK_DIVIDER_ONE_BASED), + .common = { + .reg = 0x1d0, + .hw.init = CLK_HW_INIT("vi-ahb", + "video-pll", + &ccu_div_ops, + 0), + }, +}; + +static struct ccu_div vo_axi_clk = { + .enable = BIT(5), + .div = TH_CCU_DIV_FLAGS(0, 4, CLK_DIVIDER_ONE_BASED), + .common = { + .reg = 0x1dc, + .hw.init = CLK_HW_INIT("vo-axi", + "video-pll", + &ccu_div_ops, + 0), + }, +}; + +static struct ccu_div vp_apb_clk = { + .div = TH_CCU_DIV_FLAGS(0, 3, CLK_DIVIDER_ONE_BASED), + .common = { + .reg = 0x1e0, + .hw.init = CLK_HW_INIT("vp-apb", + "gmac-pll", + &ccu_div_ops, + 0), + }, +}; + +static struct ccu_div vp_axi_clk = { + .enable = BIT(15), + .div = TH_CCU_DIV_FLAGS(8, 4, CLK_DIVIDER_ONE_BASED), + .common = { + .reg = 0x1e0, + .hw.init = CLK_HW_INIT("vp-axi", + "video-pll", + &ccu_div_ops, + 0), + }, +}; + +static CCU_GATE(cpu2vp_clk, "cpu2vp", "axi-aclk", + 0x1e0, BIT(13), 0); + +static struct ccu_div venc_clk = { + .enable = BIT(5), + .div = TH_CCU_DIV_FLAGS(0, 3, CLK_DIVIDER_ONE_BASED), + .common = { + .reg = 0x1e4, + .hw.init = CLK_HW_INIT("venc", + "gmac-pll", + &ccu_div_ops, + 0), + }, +}; + +static struct ccu_div dpu0_clk = { + .div = TH_CCU_DIV_FLAGS(0, 8, CLK_DIVIDER_ONE_BASED), + .common = { + .reg = 0x1e8, + .hw.init = CLK_HW_INIT("dpu0", + "dpu0-pll", + &ccu_div_ops, + 0), + }, +}; + +static struct ccu_div dpu1_clk = { + .div = TH_CCU_DIV_FLAGS(0, 8, CLK_DIVIDER_ONE_BASED), + .common = { + .reg = 0x1ec, + .hw.init = CLK_HW_INIT("dpu1", + "dpu1-pll", + &ccu_div_ops, + 0), + }, +}; + +static CCU_GATE(emmc_sdio_clk, "emmc-sdio", "video-pll", 0x204, BIT(30), 0); +static CCU_GATE(gmac1_clk, "gmac1", "gmac-pll", 0x204, BIT(26), 0); +static CCU_GATE(padctrl1_clk, "padctrl1", "perisys-apb-pclk", 0x204, BIT(24), 0); +static CCU_GATE(dsmart_clk, "dsmart", "perisys-apb-pclk", 0x204, BIT(23), 0); +static CCU_GATE(padctrl0_clk, "padctrl0", "perisys-apb-pclk", 0x204, BIT(22), 0); +static CCU_GATE(gmac_axi_clk, "gmac-axi", "axi4-cpusys2-aclk", 0x204, BIT(21), 0); +static CCU_GATE(gpio3_clk, "gpio3-clk", "peri2sys-apb-pclk", 0x204, BIT(20), 0); +static CCU_GATE(gmac0_clk, "gmac0", "gmac-pll", 0x204, BIT(19), 0); +static CCU_GATE(pwm_clk, "pwm", "perisys-apb-pclk", 0x204, BIT(18), 0); +static CCU_GATE(qspi0_clk, "qspi0", "video-pll", 0x204, BIT(17), 0); +static CCU_GATE(qspi1_clk, "qspi1", "video-pll", 0x204, BIT(16), 0); +static CCU_GATE(spi_clk, "spi", "video-pll", 0x204, BIT(15), 0); +static CCU_GATE(uart0_pclk, "uart0-pclk", "perisys-apb-pclk", 0x204, BIT(14), 0); +static CCU_GATE(uart1_pclk, "uart1-pclk", "perisys-apb-pclk", 0x204, BIT(13), 0); +static CCU_GATE(uart2_pclk, "uart2-pclk", "perisys-apb-pclk", 0x204, BIT(12), 0); +static CCU_GATE(uart3_pclk, "uart3-pclk", "perisys-apb-pclk", 0x204, BIT(11), 0); +static CCU_GATE(uart4_pclk, "uart4-pclk", "perisys-apb-pclk", 0x204, BIT(10), 0); +static CCU_GATE(uart5_pclk, "uart5-pclk", "perisys-apb-pclk", 0x204, BIT(9), 0); +static CCU_GATE(gpio0_clk, "gpio0-clk", "perisys-apb-pclk", 0x204, BIT(8), 0); +static CCU_GATE(gpio1_clk, "gpio1-clk", "perisys-apb-pclk", 0x204, BIT(7), 0); +static CCU_GATE(gpio2_clk, "gpio2-clk", "peri2sys-apb-pclk", 0x204, BIT(6), 0); +static CCU_GATE(i2c0_clk, "i2c0", "perisys-apb-pclk", 0x204, BIT(5), 0); +static CCU_GATE(i2c1_clk, "i2c1", "perisys-apb-pclk", 0x204, BIT(4), 0); +static CCU_GATE(i2c2_clk, "i2c2", "perisys-apb-pclk", 0x204, BIT(3), 0); +static CCU_GATE(i2c3_clk, "i2c3", "perisys-apb-pclk", 0x204, BIT(2), 0); +static CCU_GATE(i2c4_clk, "i2c4", "perisys-apb-pclk", 0x204, BIT(1), 0); +static CCU_GATE(i2c5_clk, "i2c5", "perisys-apb-pclk", 0x204, BIT(0), 0); + +static CCU_GATE(spinlock_clk, "spinlock", "ahb2-cpusys-hclk", 0x208, BIT(10), 0); +static CCU_GATE(dma_clk, "dma", "axi4-cpusys2-aclk", 0x208, BIT(8), 0); +static CCU_GATE(mbox0_clk, "mbox0", "apb3-cpusys-pclk", 0x208, BIT(7), 0); +static CCU_GATE(mbox1_clk, "mbox1", "apb3-cpusys-pclk", 0x208, BIT(6), 0); +static CCU_GATE(mbox2_clk, "mbox2", "apb3-cpusys-pclk", 0x208, BIT(5), 0); +static CCU_GATE(mbox3_clk, "mbox3", "apb3-cpusys-pclk", 0x208, BIT(4), 0); +static CCU_GATE(wdt0_clk, "wdt0", "apb3-cpusys-pclk", 0x208, BIT(3), 0); +static CCU_GATE(wdt1_clk, "wdt1", "apb3-cpusys-pclk", 0x208, BIT(2), 0); +static CCU_GATE(timer0_clk, "timer0", "apb3-cpusys-pclk", 0x208, BIT(1), 0); +static CCU_GATE(timer1_clk, "timer1", "apb3-cpusys-pclk", 0x208, BIT(0), 0); + +static CCU_GATE(sram0_clk, "sram0", "axi-aclk", 0x20c, BIT(4), 0); +static CCU_GATE(sram1_clk, "sram1", "axi-aclk", 0x20c, BIT(3), 0); +static CCU_GATE(sram2_clk, "sram2", "axi-aclk", 0x20c, BIT(2), 0); +static CCU_GATE(sram3_clk, "sram3", "axi-aclk", 0x20c, BIT(1), 0); + +static CLK_FIXED_FACTOR_HW(gmac_pll_clk_100m, "gmac-pll-clk-100m", + &gmac_pll_clk.common.hw, + 10, 1, 0); + +static const char * const uart_sclk_parents[] = { "gmac-pll-clk-100m", "osc_24m" }; +struct ccu_mux uart_sclk = { + .mux = TH_CCU_ARG(0, 1), + .common = { + .reg = 0x210, + .hw.init = CLK_HW_INIT_PARENTS("uart-sclk", + uart_sclk_parents, + &ccu_mux_ops, + 0), + } +}; + +static struct ccu_common *th1520_clks[] = { + &cpu_pll0_clk.common, + &cpu_pll1_clk.common, + &gmac_pll_clk.common, + &video_pll_clk.common, + &dpu0_pll_clk.common, + &dpu1_pll_clk.common, + &tee_pll_clk.common, + &c910_i0_clk.common, + &c910_clk.common, + &brom_clk.common, + &bmu_clk.common, + &ahb2_cpusys_hclk.common, + &apb3_cpusys_pclk.common, + &axi4_cpusys2_aclk.common, + &aon2cpu_a2x_clk.common, + &x2x_cpusys_clk.common, + &axi_aclk.common, + &cpu2aon_x2h_clk.common, + &perisys_ahb_hclk.common, + &cpu2peri_x2h_clk.common, + &perisys_apb_pclk.common, + &peri2sys_apb_pclk.common, + &perisys_apb1_hclk.common, + &perisys_apb2_hclk.common, + &perisys_apb3_hclk.common, + &perisys_apb4_hclk.common, + &out1_clk.common, + &out2_clk.common, + &out3_clk.common, + &out4_clk.common, + &apb_pclk.common, + &npu_clk.common, + &npu_axi_clk.common, + &vi_clk.common, + &vi_ahb_clk.common, + &vo_axi_clk.common, + &vp_apb_clk.common, + &vp_axi_clk.common, + &cpu2vp_clk.common, + &venc_clk.common, + &dpu0_clk.common, + &dpu1_clk.common, + &emmc_sdio_clk.common, + &gmac1_clk.common, + &padctrl1_clk.common, + &dsmart_clk.common, + &padctrl0_clk.common, + &gmac_axi_clk.common, + &gpio3_clk.common, + &gmac0_clk.common, + &pwm_clk.common, + &qspi0_clk.common, + &qspi1_clk.common, + &spi_clk.common, + &uart0_pclk.common, + &uart1_pclk.common, + &uart2_pclk.common, + &uart3_pclk.common, + &uart4_pclk.common, + &uart5_pclk.common, + &gpio0_clk.common, + &gpio1_clk.common, + &gpio2_clk.common, + &i2c0_clk.common, + &i2c1_clk.common, + &i2c2_clk.common, + &i2c3_clk.common, + &i2c4_clk.common, + &i2c5_clk.common, + &spinlock_clk.common, + &dma_clk.common, + &mbox0_clk.common, + &mbox1_clk.common, + &mbox2_clk.common, + &mbox3_clk.common, + &wdt0_clk.common, + &wdt1_clk.common, + &timer0_clk.common, + &timer1_clk.common, + &sram0_clk.common, + &sram1_clk.common, + &sram2_clk.common, + &sram3_clk.common, + &uart_sclk.common, +}; + +#define NR_CLKS (CLK_UART_SCLK + 1) + +static struct clk_hw_onecell_data th1520_hw_clks = { + .hws = { + [CLK_OSC12M] = &osc12m_clk.hw, + [CLK_CPU_PLL0] = &cpu_pll0_clk.common.hw, + [CLK_CPU_PLL1] = &cpu_pll1_clk.common.hw, + [CLK_GMAC_PLL] = &gmac_pll_clk.common.hw, + [CLK_VIDEO_PLL] = &video_pll_clk.common.hw, + [CLK_DPU0_PLL] = &dpu0_pll_clk.common.hw, + [CLK_DPU1_PLL] = &dpu1_pll_clk.common.hw, + [CLK_TEE_PLL] = &tee_pll_clk.common.hw, + [CLK_C910_I0] = &c910_i0_clk.common.hw, + [CLK_C910] = &c910_clk.common.hw, + [CLK_BROM] = &brom_clk.common.hw, + [CLK_BMU] = &bmu_clk.common.hw, + [CLK_AHB2_CPUSYS_HCLK] = &ahb2_cpusys_hclk.common.hw, + [CLK_APB3_CPUSYS_PCLK] = &apb3_cpusys_pclk.common.hw, + [CLK_AXI4_CPUSYS2_ACLK] = &axi4_cpusys2_aclk.common.hw, + [CLK_AON2CPU_A2X] = &aon2cpu_a2x_clk.common.hw, + [CLK_X2X_CPUSYS] = &x2x_cpusys_clk.common.hw, + [CLK_AXI_ACLK] = &axi_aclk.common.hw, + [CLK_CPU2AON_X2H] = &cpu2aon_x2h_clk.common.hw, + [CLK_PERI_AHB_HCLK] = &perisys_ahb_hclk.common.hw, + [CLK_CPU2PERI_X2H] = &cpu2peri_x2h_clk.common.hw, + [CLK_PERI_APB_PCLK] = &perisys_apb_pclk.common.hw, + [CLK_PERI2APB_PCLK] = &peri2sys_apb_pclk.common.hw, + [CLK_PERI_APB1_HCLK] = &perisys_apb1_hclk.common.hw, + [CLK_PERI_APB2_HCLK] = &perisys_apb2_hclk.common.hw, + [CLK_PERI_APB3_HCLK] = &perisys_apb3_hclk.common.hw, + [CLK_PERI_APB4_HCLK] = &perisys_apb4_hclk.common.hw, + [CLK_OUT1] = &out1_clk.common.hw, + [CLK_OUT2] = &out2_clk.common.hw, + [CLK_OUT3] = &out3_clk.common.hw, + [CLK_OUT4] = &out4_clk.common.hw, + [CLK_APB_PCLK] = &apb_pclk.common.hw, + [CLK_NPU] = &npu_clk.common.hw, + [CLK_NPU_AXI] = &npu_axi_clk.common.hw, + [CLK_VI] = &vi_clk.common.hw, + [CLK_VI_AHB] = &vi_ahb_clk.common.hw, + [CLK_VO_AXI] = &vo_axi_clk.common.hw, + [CLK_VP_APB] = &vp_apb_clk.common.hw, + [CLK_VP_AXI] = &vp_axi_clk.common.hw, + [CLK_CPU2VP] = &cpu2vp_clk.common.hw, + [CLK_VENC] = &venc_clk.common.hw, + [CLK_DPU0] = &dpu0_clk.common.hw, + [CLK_DPU1] = &dpu1_clk.common.hw, + [CLK_EMMC_SDIO] = &emmc_sdio_clk.common.hw, + [CLK_GMAC1] = &gmac1_clk.common.hw, + [CLK_PADCTRL1] = &padctrl1_clk.common.hw, + [CLK_DSMART] = &dsmart_clk.common.hw, + [CLK_PADCTRL0] = &padctrl0_clk.common.hw, + [CLK_GMAC_AXI] = &gmac_axi_clk.common.hw, + [CLK_GPIO3] = &gpio3_clk.common.hw, + [CLK_GMAC0] = &gmac0_clk.common.hw, + [CLK_PWM] = &pwm_clk.common.hw, + [CLK_QSPI0] = &qspi0_clk.common.hw, + [CLK_QSPI1] = &qspi1_clk.common.hw, + [CLK_SPI] = &spi_clk.common.hw, + [CLK_UART0_PCLK] = &uart0_pclk.common.hw, + [CLK_UART1_PCLK] = &uart1_pclk.common.hw, + [CLK_UART2_PCLK] = &uart2_pclk.common.hw, + [CLK_UART3_PCLK] = &uart3_pclk.common.hw, + [CLK_UART4_PCLK] = &uart4_pclk.common.hw, + [CLK_UART5_PCLK] = &uart5_pclk.common.hw, + [CLK_GPIO0] = &gpio0_clk.common.hw, + [CLK_GPIO1] = &gpio1_clk.common.hw, + [CLK_GPIO2] = &gpio2_clk.common.hw, + [CLK_I2C0] = &i2c0_clk.common.hw, + [CLK_I2C1] = &i2c1_clk.common.hw, + [CLK_I2C2] = &i2c2_clk.common.hw, + [CLK_I2C3] = &i2c3_clk.common.hw, + [CLK_I2C4] = &i2c4_clk.common.hw, + [CLK_I2C5] = &i2c5_clk.common.hw, + [CLK_SPINLOCK] = &spinlock_clk.common.hw, + [CLK_DMA] = &dma_clk.common.hw, + [CLK_MBOX0] = &mbox0_clk.common.hw, + [CLK_MBOX1] = &mbox1_clk.common.hw, + [CLK_MBOX2] = &mbox2_clk.common.hw, + [CLK_MBOX3] = &mbox3_clk.common.hw, + [CLK_WDT0] = &wdt0_clk.common.hw, + [CLK_WDT1] = &wdt1_clk.common.hw, + [CLK_TIMER0] = &timer0_clk.common.hw, + [CLK_TIMER1] = &timer1_clk.common.hw, + [CLK_SRAM0] = &sram0_clk.common.hw, + [CLK_SRAM1] = &sram1_clk.common.hw, + [CLK_SRAM2] = &sram2_clk.common.hw, + [CLK_SRAM3] = &sram3_clk.common.hw, + [CLK_PLL_GMAC_100M] = &gmac_pll_clk_100m.hw, + [CLK_UART_SCLK] = &uart_sclk.common.hw, + }, + .num = NR_CLKS, +}; + +static const struct regmap_config th1520_clk_regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + .fast_io = true, +}; + +static int th1520_clk_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct regmap *map; + void __iomem *regs; + int ret, i; + + regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(regs)) + return PTR_ERR(regs); + + map = devm_regmap_init_mmio(dev, regs, &th1520_clk_regmap_config); + if (IS_ERR(map)) + return PTR_ERR(map); + + for (i = 0; i < ARRAY_SIZE(th1520_clks); i++) + th1520_clks[i]->map = map; + + for (i = 0; i < th1520_hw_clks.num; i++) { + ret = devm_clk_hw_register(dev, th1520_hw_clks.hws[i]); + if (ret) + return ret; + } + + ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, + &th1520_hw_clks); + if (ret) + return ret; + + return 0; +} + +static const struct of_device_id th1520_clk_match[] = { + { + .compatible = "thead,th1520-clk-ap", + }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, th1520_clk_match); + +static struct platform_driver th1520_clk_driver = { + .probe = th1520_clk_probe, + .driver = { + .name = "th1520-clk", + .of_match_table = th1520_clk_match, + }, +}; +module_platform_driver(th1520_clk_driver); + +MODULE_DESCRIPTION("T-HEAD TH1520 AP Clock driver"); +MODULE_AUTHOR("Yangtao Li "); +MODULE_AUTHOR("Jisheng Zhang "); +MODULE_LICENSE("GPL"); -- 2.34.1