| Message ID | 20230928063448.3544464-4-xianwei.zhao@amlogic.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | Add C3 SoC PLLs and Peripheral clock | expand |
On Thu 28 Sep 2023 at 14:34, Xianwei Zhao <xianwei.zhao@amlogic.com> wrote: > Add the C3 PLL clock controller driver for the Amlogic C3 SoC family. > > Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com> > --- > drivers/clk/meson/Kconfig | 12 + > drivers/clk/meson/Makefile | 1 + > drivers/clk/meson/c3-pll.c | 510 +++++++++++++++++++++++++++++++++++++ > drivers/clk/meson/c3-pll.h | 35 +++ > 4 files changed, 558 insertions(+) > create mode 100644 drivers/clk/meson/c3-pll.c > create mode 100644 drivers/clk/meson/c3-pll.h > > diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig > index c5303e4c1604..76be4bbd2afb 100644 > --- a/drivers/clk/meson/Kconfig > +++ b/drivers/clk/meson/Kconfig > @@ -128,6 +128,18 @@ config COMMON_CLK_A1_PERIPHERALS > device, A1 SoC Family. Say Y if you want A1 Peripherals clock > controller to work. > > +config COMMON_CLK_C3_PLL > + tristate "Amlogic C3 PLL clock controller" > + default y > + select COMMON_CLK_MESON_REGMAP > + select COMMON_CLK_MESON_PLL > + select COMMON_CLK_MESON_CLKC_UTILS > + help > + Support for the PLL clock controller on Amlogic C302X and C308L devices, > + AKA c3. Amlogic C302X and C308L devices include AW402, AW409 and AW419. > + Say Y if you want the board to work, because PLLs are the parent of most > + peripherals. > + > config COMMON_CLK_G12A > tristate "G12 and SM1 SoC clock controllers support" > depends on ARM64 > diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile > index 9ee4b954c896..4420af628b31 100644 > --- a/drivers/clk/meson/Makefile > +++ b/drivers/clk/meson/Makefile > @@ -19,6 +19,7 @@ obj-$(CONFIG_COMMON_CLK_AXG) += axg.o axg-aoclk.o > obj-$(CONFIG_COMMON_CLK_AXG_AUDIO) += axg-audio.o > obj-$(CONFIG_COMMON_CLK_A1_PLL) += a1-pll.o > obj-$(CONFIG_COMMON_CLK_A1_PERIPHERALS) += a1-peripherals.o > +obj-$(CONFIG_COMMON_CLK_C3_PLL) += c3-pll.o > obj-$(CONFIG_COMMON_CLK_GXBB) += gxbb.o gxbb-aoclk.o > obj-$(CONFIG_COMMON_CLK_G12A) += g12a.o g12a-aoclk.o > obj-$(CONFIG_COMMON_CLK_MESON8B) += meson8b.o meson8-ddr.o > diff --git a/drivers/clk/meson/c3-pll.c b/drivers/clk/meson/c3-pll.c > new file mode 100644 > index 000000000000..5244dc19ab6e > --- /dev/null > +++ b/drivers/clk/meson/c3-pll.c > @@ -0,0 +1,510 @@ > +// SPDX-License-Identifier: GPL-2.0-only > +/* > + * Amlogic C3 PLL Controller Driver > + * > + * Copyright (c) 2023 Amlogic, inc. > + * Author: Chuan Liu <chuan.liu@amlogic.com> If Chuan is Author, shouldn't get his Signed-off-by ? Maybe Co-developed-by as well ? > + */ > + > +#include <linux/clk-provider.h> > +#include <linux/of_device.h> > +#include <linux/platform_device.h> > +#include <linux/clk.h> > +#include "clk-regmap.h" > +#include "clk-pll.h" > +#include "c3-pll.h" > +#include "meson-clkc-utils.h" > +#include <dt-bindings/clock/amlogic,c3-pll-clkc.h> > + > +#define MEMBER_REG_PARM(_member_name, _reg, _shift, _width) \ > + ._member_name = { \ > + .reg_off = _reg, \ > + .shift = _shift, \ > + .width = _width, \ > +} > + > +#define __AML_CLK_PLL(_name, _en_reg, _en_shift, _en_width, \ > + _m_reg, _m_shift, _m_width, \ > + _f_reg, _f_shift, _f_width, \ > + _n_reg, _n_shift, _n_width, \ > + _l_reg, _l_shift, _l_width, \ > + _r_reg, _r_shift, _r_width, \ > + _init_reg, _init_reg_cnt, _range, _table, \ > + _dflags, _ops, _pname, _pdata, _phw, _iflags) \ > +static struct clk_regmap _name = { \ > + .data = &(struct meson_clk_pll_data){ \ > + MEMBER_REG_PARM(en, \ > + _en_reg, _en_shift, _en_width), \ > + MEMBER_REG_PARM(m, \ > + _m_reg, _m_shift, _m_width), \ > + MEMBER_REG_PARM(frac, \ > + _f_reg, _f_shift, _f_width), \ > + MEMBER_REG_PARM(n, \ > + _n_reg, _n_shift, _n_width), \ > + MEMBER_REG_PARM(l, \ > + _l_reg, _l_shift, _l_width), \ > + MEMBER_REG_PARM(rst, \ > + _r_reg, _r_shift, _r_width), \ > + .range = _range, \ > + .table = _table, \ > + .init_regs = _init_reg, \ > + .init_count = _init_reg_cnt, \ > + .flags = _dflags, \ > + }, \ > + .hw.init = &(struct clk_init_data){ \ > + .name = #_name, \ > + .ops = _ops, \ > + .parent_names = _pname, \ > + .parent_data = _pdata, \ > + .parent_hws = (const struct clk_hw *[]) {_phw}, \ > + .num_parents = 1, \ > + .flags = _iflags, \ > + }, \ > +} > + > +#define __AML_CLK_MUX(_name, _reg, _mask, _shift, _table, _dflags, \ > + _ops, _pname, _pdata, _phw, _pnub, _iflags) \ > +static struct clk_regmap _name = { \ > + .data = &(struct clk_regmap_mux_data){ \ > + .offset = _reg, \ > + .mask = _mask, \ > + .shift = _shift, \ > + .table = _table, \ > + .flags = _dflags, \ > + }, \ > + .hw.init = &(struct clk_init_data){ \ > + .name = #_name, \ > + .ops = _ops, \ > + .parent_names = _pname, \ > + .parent_data = _pdata, \ > + .parent_hws = (const struct clk_hw *[]) { _phw }, \ > + .num_parents = _pnub, \ > + .flags = _iflags, \ > + }, \ > +} > + > +#define __AML_CLK_DIV(_name, _reg, _shift, _width, _table, _dflags, \ > + _ops, _pname, _pdata, _phw, _iflags) \ > +static struct clk_regmap _name = { \ > + .data = &(struct clk_regmap_div_data){ \ > + .offset = _reg, \ > + .shift = _shift, \ > + .width = _width, \ > + .table = _table, \ > + .flags = _dflags, \ > + }, \ > + .hw.init = &(struct clk_init_data){ \ > + .name = #_name, \ > + .ops = _ops, \ > + .parent_names = _pname, \ > + .parent_data = _pdata, \ > + .parent_hws = (const struct clk_hw *[]) { _phw }, \ > + .num_parents = 1, \ > + .flags = _iflags, \ > + }, \ > +} > + > +#define __AML_CLK_GATE(_name, _reg, _bit, _gflags, \ > + _ops, _pname, _pdata, _phw, _iflags) \ > +static struct clk_regmap _name = { \ > + .data = &(struct clk_regmap_gate_data){ \ > + .offset = _reg, \ > + .bit_idx = _bit, \ > + .flags = _gflags, \ > + }, \ > + .hw.init = &(struct clk_init_data) { \ > + .name = #_name, \ > + .ops = _ops, \ > + .parent_names = _pname, \ > + .parent_data = _pdata, \ > + .parent_hws = (const struct clk_hw *[]) { _phw }, \ > + .num_parents = 1, \ > + .flags = _iflags, \ > + }, \ > +} > + > +#define __AML_CLK_FIXED_FACTOR(_name, _mult, _div, _ops, \ > + _pname, _pdata, _phw, _iflags) \ > + static struct clk_fixed_factor _name = { \ > + .mult = _mult, \ > + .div = _div, \ > + .hw.init = &(struct clk_init_data){ \ > + .name = #_name, \ > + .ops = _ops, \ > + .parent_names = _pname, \ > + .parent_data = _pdata, \ > + .parent_hws = (const struct clk_hw *[]) { _phw }, \ > + .num_parents = 1, \ > + .flags = _iflags, \ > + }, \ > +} > + > +#define AML_CLK_PLL_RW(_name, _en_reg, _en_shift, _en_width, \ > + _m_reg, _m_shift, _m_width, \ > + _f_reg, _f_shift, _f_width, \ > + _n_reg, _n_shift, _n_width, \ > + _l_reg, _l_shift, _l_width, \ > + _r_reg, _r_shift, _r_width, \ > + _init_reg, _init_reg_cnt, _range, _table, _dflags,\ > + _pdata, _iflags) \ > + __AML_CLK_PLL(_name, _en_reg, _en_shift, _en_width, \ > + _m_reg, _m_shift, _m_width, \ > + _f_reg, _f_shift, _f_width, \ > + _n_reg, _n_shift, _n_width, \ > + _l_reg, _l_shift, _l_width, \ > + _r_reg, _r_shift, _r_width, \ > + _init_reg, _init_reg_cnt, _range, _table, \ > + _dflags, &meson_clk_pll_ops, \ > + NULL, _pdata, NULL, _iflags) > + > +#define AML_CLK_PLL_RO(_name, _en_reg, _en_shift, _en_width, \ > + _m_reg, _m_shift, _m_width, \ > + _f_reg, _f_shift, _f_width, \ > + _n_reg, _n_shift, _n_width, \ > + _l_reg, _l_shift, _l_width, \ > + _r_reg, _r_shift, _r_width, \ > + _init_reg, _init_reg_cnt, _range, _table, \ > + _dflags, _pdata, _iflags) \ > + __AML_CLK_PLL(_name, _en_reg, _en_shift, _en_width, \ > + _m_reg, _m_shift, _m_width, \ > + _f_reg, _f_shift, _f_width, \ > + _n_reg, _n_shift, _n_width, \ > + _l_reg, _l_shift, _l_width, \ > + _r_reg, _r_shift, _r_width, \ > + _init_reg, _init_reg_cnt, _range, _table, \ > + _dflags, &meson_clk_pll_ro_ops, \ > + NULL, _pdata, NULL, _iflags) > + > +#define AML_CLK_MUX_RW(_name, _reg, _mask, _shift, _table, _dflags, \ > + _pdata, _iflags) \ > + __AML_CLK_MUX(_name, _reg, _mask, _shift, _table, _dflags, \ > + &clk_regmap_mux_ops, NULL, _pdata, NULL, \ > + ARRAY_SIZE(_pdata), _iflags) > + > +#define AML_CLK_DIV_RW(_name, _reg, _shift, _width, _table, _dflags, \ > + _phw, _iflags) \ > + __AML_CLK_DIV(_name, _reg, _shift, _width, _table, _dflags, \ > + &clk_regmap_divider_ops, NULL, NULL, \ > + _phw, _iflags) > + > +#define AML_CLK_DIV_RO(_name, _reg, _shift, _width, _table, _dflags, \ > + _phw, _iflags) \ > + __AML_CLK_DIV(_name, _reg, _shift, _width, _table, _dflags, \ > + &clk_regmap_divider_ro_ops, NULL, NULL, \ > + _phw, _iflags) > + > +#define AML_CLK_GATE_RW(_name, _reg, _bit, _dflags, _phw, _iflags) \ > + __AML_CLK_GATE(_name, _reg, _bit, _dflags, \ > + &clk_regmap_gate_ops, NULL, NULL, _phw, \ > + _iflags) > + > +#define AML_CLK_GATE_RO(_name, _reg, _bit, _dflags, _phw, _iflags) \ > + __AML_CLK_GATE(_name, _reg, _bit, _dflags, \ > + &clk_regmap_gate_ro_ops, NULL, NULL, _phw, \ > + _iflags) > + > +#define AML_CLK_FIXED_FACTOR(_name, _mult, _div, _phw, _iflags) \ > + __AML_CLK_FIXED_FACTOR(_name, _mult, _div, \ > + &clk_fixed_factor_ops, NULL, NULL, \ > + _phw, _iflags) > + I don't get why all these macro are needed ? I don't see a 10 instances of the very same clock that would justify this. It makes this driver borderline un-reviewable. Unless you can provide a very reason why it is better like this, please have a look a the a1 and s4 controllers and re-submit. Same goes for patch #4 > +static const struct clk_parent_data pll_dco_parent = { > + .fw_name = "pll_in", > +}; > + > +static const struct clk_parent_data mclk_pll_dco_parent = { > + .fw_name = "mclk_pll_in", > +}; > + > +AML_CLK_PLL_RO(fixed_pll_dco, ANACTRL_FIXPLL_CTRL0, 28, 1, /* en */ > + ANACTRL_FIXPLL_CTRL0, 0, 8, /* m */ > + 0, 0, 0, /* frac */ > + ANACTRL_FIXPLL_CTRL0, 16, 5, /* n */ > + ANACTRL_FIXPLL_CTRL0, 31, 1, /* lock */ > + ANACTRL_FIXPLL_CTRL0, 29, 1, /* rst */ > + NULL, 0, NULL, NULL, 0, &pll_dco_parent, 0); > +AML_CLK_DIV_RO(fixed_pll, ANACTRL_FIXPLL_CTRL0, 12, 3, NULL, > + CLK_DIVIDER_POWER_OF_TWO, &fixed_pll_dco.hw, 0); > +AML_CLK_FIXED_FACTOR(fclk_div40_div, 1, 40, &fixed_pll.hw, 0); > +AML_CLK_GATE_RO(fclk_div40, ANACTRL_FIXPLL_CTRL4, 0, 0, &fclk_div40_div.hw, 0); > +AML_CLK_FIXED_FACTOR(fclk_div2_div, 1, 2, &fixed_pll.hw, 0); > +AML_CLK_GATE_RO(fclk_div2, ANACTRL_FIXPLL_CTRL4, 24, 0, &fclk_div2_div.hw, 0); > +AML_CLK_FIXED_FACTOR(fclk_div2p5_div, 2, 5, &fixed_pll.hw, 0); > +AML_CLK_GATE_RO(fclk_div2p5, ANACTRL_FIXPLL_CTRL4, 4, 0, &fclk_div2p5_div.hw, 0); > +AML_CLK_FIXED_FACTOR(fclk_div3_div, 1, 3, &fixed_pll.hw, 0); > +AML_CLK_GATE_RO(fclk_div3, ANACTRL_FIXPLL_CTRL4, 20, 0, &fclk_div3_div.hw, 0); > +AML_CLK_FIXED_FACTOR(fclk_div4_div, 1, 4, &fixed_pll.hw, 0); > +AML_CLK_GATE_RO(fclk_div4, ANACTRL_FIXPLL_CTRL4, 21, 0, &fclk_div4_div.hw, 0); > +AML_CLK_FIXED_FACTOR(fclk_div5_div, 1, 5, &fixed_pll.hw, 0); > +AML_CLK_GATE_RO(fclk_div5, ANACTRL_FIXPLL_CTRL4, 22, 0, &fclk_div5_div.hw, 0); > +AML_CLK_FIXED_FACTOR(fclk_div7_div, 1, 7, &fixed_pll.hw, 0); > +AML_CLK_GATE_RO(fclk_div7, ANACTRL_FIXPLL_CTRL4, 23, 0, &fclk_div7_div.hw, 0); > + > +static const struct reg_sequence c3_gp0_init_regs[] = { > + { .reg = ANACTRL_GP0PLL_CTRL1, .def = 0x0 }, > + { .reg = ANACTRL_GP0PLL_CTRL2, .def = 0x0 }, > + { .reg = ANACTRL_GP0PLL_CTRL3, .def = 0x48681c00 }, > + { .reg = ANACTRL_GP0PLL_CTRL4, .def = 0x88770290 }, > + { .reg = ANACTRL_GP0PLL_CTRL5, .def = 0x3927200a }, > + { .reg = ANACTRL_GP0PLL_CTRL6, .def = 0x56540000, .delay_us = 10 }, > + { .reg = ANACTRL_GP0PLL_CTRL0, .def = 0x080304fa }, > + { .reg = ANACTRL_GP0PLL_CTRL0, .def = 0x380304fa, .delay_us = 10 }, > + { .reg = ANACTRL_GP0PLL_CTRL0, .def = 0X180304fa } > +}; > + > +static const struct pll_params_table c3_gp0_pll_params_table[] = { > + PLL_PARAMS(150, 1), /* DCO = 3600M */ > + PLL_PARAMS(130, 1), /* DCO = 3120M */ > + PLL_PARAMS(192, 1), /* DCO = 4608M */ > + PLL_PARAMS(125, 1), /* DCO = 3000M */ > + { /* sentinel */ } > +}; > + > +/* The maximum frequency divider supports is 32, not 128(2^7) */ > +static const struct clk_div_table c3_gp0_pll_od_table[] = { > + { 0, 1 }, > + { 1, 2 }, > + { 2, 4 }, > + { 3, 8 }, > + { 4, 16 }, > + { 5, 32 }, > + { /* sentinel */ } > +}; > + > +AML_CLK_PLL_RW(gp0_pll_dco, ANACTRL_GP0PLL_CTRL0, 28, 1, /* en */ > + ANACTRL_GP0PLL_CTRL0, 0, 9, /* m */ > + ANACTRL_GP0PLL_CTRL1, 0, 19, /* frac */ > + ANACTRL_GP0PLL_CTRL0, 10, 5, /* n */ > + ANACTRL_GP0PLL_CTRL0, 31, 1, /* lock */ > + ANACTRL_GP0PLL_CTRL0, 29, 1, /* rst */ > + c3_gp0_init_regs, ARRAY_SIZE(c3_gp0_init_regs), > + NULL, c3_gp0_pll_params_table, 0, > + &pll_dco_parent, 0); > +AML_CLK_DIV_RW(gp0_pll, ANACTRL_GP0PLL_CTRL0, 16, 3, > + c3_gp0_pll_od_table, 0, > + &gp0_pll_dco.hw, CLK_SET_RATE_PARENT); > + > +static const struct reg_sequence c3_hifi_init_regs[] = { > + { .reg = ANACTRL_HIFIPLL_CTRL0, .def = 0x08010496 }, > + { .reg = ANACTRL_HIFIPLL_CTRL0, .def = 0x38010496 }, > + { .reg = ANACTRL_HIFIPLL_CTRL1, .def = 0x0000ce40 }, > + { .reg = ANACTRL_HIFIPLL_CTRL2, .def = 0x00000000 }, > + { .reg = ANACTRL_HIFIPLL_CTRL3, .def = 0x6a285c00 }, > + { .reg = ANACTRL_HIFIPLL_CTRL4, .def = 0x65771290 }, > + { .reg = ANACTRL_HIFIPLL_CTRL5, .def = 0x3927200a }, > + { .reg = ANACTRL_HIFIPLL_CTRL6, .def = 0x56540000, .delay_us = 50 }, > + { .reg = ANACTRL_HIFIPLL_CTRL0, .def = 0x18010496, .delay_us = 20 }, > +}; > + > +static const struct pll_params_table c3_hifi_pll_params_table[] = { > + PLL_PARAMS(150, 1), /* DCO = 3600M */ > + PLL_PARAMS(130, 1), /* DCO = 3120M */ > + PLL_PARAMS(192, 1), /* DCO = 4608M */ > + PLL_PARAMS(125, 1), /* DCO = 3000M */ > + { /* sentinel */ } > +}; > + > +AML_CLK_PLL_RW(hifi_pll_dco, ANACTRL_HIFIPLL_CTRL0, 28, 1, /* en */ > + ANACTRL_HIFIPLL_CTRL0, 0, 8, /* m */ > + ANACTRL_HIFIPLL_CTRL1, 0, 19, /* frac */ > + ANACTRL_HIFIPLL_CTRL0, 10, 5, /* n */ > + ANACTRL_HIFIPLL_CTRL0, 31, 1, /* lock */ > + ANACTRL_HIFIPLL_CTRL0, 29, 1, /* rst */ > + c3_hifi_init_regs, ARRAY_SIZE(c3_hifi_init_regs), > + NULL, c3_hifi_pll_params_table, 0, > + &pll_dco_parent, 0); > +AML_CLK_DIV_RW(hifi_pll, ANACTRL_HIFIPLL_CTRL0, 16, 2, > + NULL, CLK_DIVIDER_POWER_OF_TWO, > + &hifi_pll_dco.hw, CLK_SET_RATE_PARENT); > + > +static const struct reg_sequence c3_mclk_init_regs[] = { > + { .reg = ANACTRL_MPLL_CTRL0, .def = 0x20011063 }, > + { .reg = ANACTRL_MPLL_CTRL0, .def = 0x30011063 }, > + { .reg = ANACTRL_MPLL_CTRL1, .def = 0x1420500f }, > + { .reg = ANACTRL_MPLL_CTRL2, .def = 0x00023041 }, > + { .reg = ANACTRL_MPLL_CTRL3, .def = 0x18180000 }, > + { .reg = ANACTRL_MPLL_CTRL0, .def = 0x10011063 }, > + { .reg = ANACTRL_MPLL_CTRL2, .def = 0x00023001 } > +}; > + > +static const struct pll_params_table c3_mclk_pll_params_table[] = { > + PLL_PARAMS(99, 1), /* VCO = 2376M */ > + { /* sentinel */ } > +}; > + > +static const struct clk_div_table c3_mpll_od_table[] = { > + { 0, 1 }, > + { 1, 2 }, > + { 2, 4 }, > + { 3, 8 }, > + { 4, 16 }, > + { /* sentinel */ } > +}; > + > +AML_CLK_PLL_RW(mclk_pll_dco, ANACTRL_MPLL_CTRL0, 28, 1, /* en */ > + ANACTRL_MPLL_CTRL0, 0, 8, /* m */ > + 0, 0, 0, /* frac */ > + ANACTRL_MPLL_CTRL0, 16, 5, /* n */ > + ANACTRL_MPLL_CTRL0, 31, 1, /* lock */ > + ANACTRL_MPLL_CTRL0, 29, 1, /* rst */ > + c3_mclk_init_regs, ARRAY_SIZE(c3_mclk_init_regs), > + NULL, c3_mclk_pll_params_table, 0, > + &mclk_pll_dco_parent, 0); > +AML_CLK_DIV_RW(mclk_pll, ANACTRL_MPLL_CTRL0, 12, 3, > + c3_mpll_od_table, 0, > + &mclk_pll_dco.hw, CLK_SET_RATE_PARENT); > +AML_CLK_DIV_RW(mclk_pll_clk, ANACTRL_MPLL_CTRL4, 16, 5, NULL, > + CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO, > + &mclk_pll.hw, CLK_SET_RATE_PARENT); > + > +static const struct clk_parent_data mclk_parent[] = { > + { .hw = &mclk_pll_clk.hw }, > + { .fw_name = "mclk_pll_in" }, > + { .hw = &fclk_div40.hw } > +}; > + > +AML_CLK_MUX_RW(mclk0_sel, ANACTRL_MPLL_CTRL4, 0x3, 4, NULL, 0, > + mclk_parent, 0); > +AML_CLK_GATE_RW(mclk0_sel_out, ANACTRL_MPLL_CTRL4, 1, 0, > + &mclk0_sel.hw, CLK_SET_RATE_PARENT); > +AML_CLK_DIV_RW(mclk0_div, ANACTRL_MPLL_CTRL4, 2, 1, NULL, 0, > + &mclk0_sel_out.hw, CLK_SET_RATE_PARENT); > +AML_CLK_GATE_RW(mclk0, ANACTRL_MPLL_CTRL4, 0, 0, > + &mclk0_div.hw, CLK_SET_RATE_PARENT); > + > +AML_CLK_MUX_RW(mclk1_sel, ANACTRL_MPLL_CTRL4, 0x3, 12, NULL, 0, > + mclk_parent, 0); > +AML_CLK_GATE_RW(mclk1_sel_out, ANACTRL_MPLL_CTRL4, 9, 0, > + &mclk1_sel.hw, CLK_SET_RATE_PARENT); > +AML_CLK_DIV_RW(mclk1_div, ANACTRL_MPLL_CTRL4, 10, 1, NULL, 0, > + &mclk1_sel_out.hw, CLK_SET_RATE_PARENT); > +AML_CLK_GATE_RW(mclk1, ANACTRL_MPLL_CTRL4, 8, 0, > + &mclk1_div.hw, CLK_SET_RATE_PARENT); > + > +static struct clk_hw *c3_pll_hw_clks[] = { > + [CLKID_FIXED_PLL_DCO] = &fixed_pll_dco.hw, > + [CLKID_FIXED_PLL] = &fixed_pll.hw, > + [CLKID_FCLK_DIV40_DIV] = &fclk_div40_div.hw, > + [CLKID_FCLK_DIV40] = &fclk_div40.hw, > + [CLKID_FCLK_DIV2_DIV] = &fclk_div2_div.hw, > + [CLKID_FCLK_DIV2] = &fclk_div2.hw, > + [CLKID_FCLK_DIV2P5_DIV] = &fclk_div2p5_div.hw, > + [CLKID_FCLK_DIV2P5] = &fclk_div2p5.hw, > + [CLKID_FCLK_DIV3_DIV] = &fclk_div3_div.hw, > + [CLKID_FCLK_DIV3] = &fclk_div3.hw, > + [CLKID_FCLK_DIV4_DIV] = &fclk_div4_div.hw, > + [CLKID_FCLK_DIV4] = &fclk_div4.hw, > + [CLKID_FCLK_DIV5_DIV] = &fclk_div5_div.hw, > + [CLKID_FCLK_DIV5] = &fclk_div5.hw, > + [CLKID_FCLK_DIV7_DIV] = &fclk_div7_div.hw, > + [CLKID_FCLK_DIV7] = &fclk_div7.hw, > + [CLKID_GP0_PLL_DCO] = &gp0_pll_dco.hw, > + [CLKID_GP0_PLL] = &gp0_pll.hw, > + [CLKID_HIFI_PLL_DCO] = &hifi_pll_dco.hw, > + [CLKID_HIFI_PLL] = &hifi_pll.hw, > + [CLKID_MCLK_PLL_DCO] = &mclk_pll_dco.hw, > + [CLKID_MCLK_PLL] = &mclk_pll.hw, > + [CLKID_MCLK_PLL_CLK] = &mclk_pll_clk.hw, > + [CLKID_MCLK0_SEL] = &mclk0_sel.hw, > + [CLKID_MCLK0_SEL_OUT] = &mclk0_sel_out.hw, > + [CLKID_MCLK0_DIV] = &mclk0_div.hw, > + [CLKID_MCLK0] = &mclk0.hw, > + [CLKID_MCLK1_SEL] = &mclk1_sel.hw, > + [CLKID_MCLK1_SEL_OUT] = &mclk1_sel_out.hw, > + [CLKID_MCLK1_DIV] = &mclk1_div.hw, > + [CLKID_MCLK1] = &mclk1.hw > +}; > + > +/* Convenience table to populate regmap in .probe */ > +static struct clk_regmap *const c3_pll_clk_regmaps[] = { > + &fixed_pll_dco, > + &fixed_pll, > + &fclk_div40, > + &fclk_div2, > + &fclk_div2p5, > + &fclk_div3, > + &fclk_div4, > + &fclk_div5, > + &fclk_div7, > + &gp0_pll_dco, > + &gp0_pll, > + &hifi_pll_dco, > + &hifi_pll, > + &mclk_pll_dco, > + &mclk_pll, > + &mclk_pll_clk, > + &mclk0_sel, > + &mclk0_sel_out, > + &mclk0_div, > + &mclk0, > + &mclk1_sel, > + &mclk1_sel_out, > + &mclk1_div, > + &mclk1, > +}; > + > +static struct regmap_config clkc_regmap_config = { > + .reg_bits = 32, > + .val_bits = 32, > + .reg_stride = 4, > +}; > + > +static struct meson_clk_hw_data c3_pll_clks = { > + .hws = c3_pll_hw_clks, > + .num = ARRAY_SIZE(c3_pll_hw_clks), > +}; > + > +static int aml_c3_pll_probe(struct platform_device *pdev) > +{ > + struct device *dev = &pdev->dev; > + struct regmap *regmap; > + void __iomem *base; > + int clkid, ret, i; > + > + base = devm_platform_ioremap_resource(pdev, 0); > + if (IS_ERR(base)) > + return PTR_ERR(base); > + > + regmap = devm_regmap_init_mmio(dev, base, &clkc_regmap_config); > + if (IS_ERR(regmap)) > + return PTR_ERR(regmap); > + > + /* Populate regmap for the regmap backed clocks */ > + for (i = 0; i < ARRAY_SIZE(c3_pll_clk_regmaps); i++) > + c3_pll_clk_regmaps[i]->map = regmap; > + > + for (clkid = 0; clkid < c3_pll_clks.num; clkid++) { > + /* array might be sparse */ > + if (!c3_pll_clks.hws[clkid]) > + continue; > + > + ret = devm_clk_hw_register(dev, c3_pll_clks.hws[clkid]); > + if (ret) { > + dev_err(dev, "Clock registration failed\n"); > + return ret; > + } > + } > + > + return devm_of_clk_add_hw_provider(dev, meson_clk_hw_get, > + &c3_pll_clks); > +} > + > +static const struct of_device_id c3_pll_clkc_match_table[] = { > + { > + .compatible = "amlogic,c3-pll-clkc", > + }, > + {} > +}; > +MODULE_DEVICE_TABLE(of, c3_pll_clkc_match_table); > + > +static struct platform_driver c3_pll_driver = { > + .probe = aml_c3_pll_probe, > + .driver = { > + .name = "c3-pll-clkc", > + .of_match_table = c3_pll_clkc_match_table, > + }, > +}; > + > +module_platform_driver(c3_pll_driver); > +MODULE_AUTHOR("Chuan Liu <chuan.liu@amlogic.com>"); > +MODULE_LICENSE("GPL"); > diff --git a/drivers/clk/meson/c3-pll.h b/drivers/clk/meson/c3-pll.h > new file mode 100644 > index 000000000000..92a08196a46f > --- /dev/null > +++ b/drivers/clk/meson/c3-pll.h > @@ -0,0 +1,35 @@ > +/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */ > +/* > + * Copyright (c) 2023 Amlogic, inc. > + * Author: Chuan Liu <chuan.liu@amlogic.com> > + */ > + > +#ifndef __AML_C3_PLL_H__ > +#define __AML_C3_PLL_H__ > + > +#define ANACTRL_FIXPLL_CTRL0 0x0040 > +#define ANACTRL_FIXPLL_CTRL4 0x0050 > +#define ANACTRL_GP0PLL_CTRL0 0x0080 > +#define ANACTRL_GP0PLL_CTRL1 0x0084 > +#define ANACTRL_GP0PLL_CTRL2 0x0088 > +#define ANACTRL_GP0PLL_CTRL3 0x008c > +#define ANACTRL_GP0PLL_CTRL4 0x0090 > +#define ANACTRL_GP0PLL_CTRL5 0x0094 > +#define ANACTRL_GP0PLL_CTRL6 0x0098 > +#define ANACTRL_GP0PLL_STS 0x009c > +#define ANACTRL_HIFIPLL_CTRL0 0x0100 > +#define ANACTRL_HIFIPLL_CTRL1 0x0104 > +#define ANACTRL_HIFIPLL_CTRL2 0x0108 > +#define ANACTRL_HIFIPLL_CTRL3 0x010c > +#define ANACTRL_HIFIPLL_CTRL4 0x0110 > +#define ANACTRL_HIFIPLL_CTRL5 0x0114 > +#define ANACTRL_HIFIPLL_CTRL6 0x0118 > +#define ANACTRL_HIFIPLL_STS 0x011c > +#define ANACTRL_MPLL_CTRL0 0x0180 > +#define ANACTRL_MPLL_CTRL1 0x0184 > +#define ANACTRL_MPLL_CTRL2 0x0188 > +#define ANACTRL_MPLL_CTRL3 0x018c > +#define ANACTRL_MPLL_CTRL4 0x0190 > +#define ANACTRL_MPLL_STS 0x01a4 > + > +#endif /* __AML_C3_PLL_H__ */
Hi Jerome,
Thanks for your advise, I will delete marco definition in next
version.
On 2023/10/3 20:55, Jerome Brunet wrote:
> [ EXTERNAL EMAIL ]
>
> On Thu 28 Sep 2023 at 14:34, Xianwei Zhao <xianwei.zhao@amlogic.com> wrote:
>
>> Add the C3 PLL clock controller driver for the Amlogic C3 SoC family.
>>
>> Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
>> ---
>> drivers/clk/meson/Kconfig | 12 +
>> drivers/clk/meson/Makefile | 1 +
>> drivers/clk/meson/c3-pll.c | 510 +++++++++++++++++++++++++++++++++++++
>> drivers/clk/meson/c3-pll.h | 35 +++
>> 4 files changed, 558 insertions(+)
>> create mode 100644 drivers/clk/meson/c3-pll.c
>> create mode 100644 drivers/clk/meson/c3-pll.h
>>
>> diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig
>> index c5303e4c1604..76be4bbd2afb 100644
>> --- a/drivers/clk/meson/Kconfig
>> +++ b/drivers/clk/meson/Kconfig
>> @@ -128,6 +128,18 @@ config COMMON_CLK_A1_PERIPHERALS
>> device, A1 SoC Family. Say Y if you want A1 Peripherals clock
>> controller to work.
>>
>> +config COMMON_CLK_C3_PLL
>> + tristate "Amlogic C3 PLL clock controller"
>> + default y
>> + select COMMON_CLK_MESON_REGMAP
>> + select COMMON_CLK_MESON_PLL
>> + select COMMON_CLK_MESON_CLKC_UTILS
>> + help
>> + Support for the PLL clock controller on Amlogic C302X and C308L devices,
>> + AKA c3. Amlogic C302X and C308L devices include AW402, AW409 and AW419.
>> + Say Y if you want the board to work, because PLLs are the parent of most
>> + peripherals.
>> +
>> config COMMON_CLK_G12A
>> tristate "G12 and SM1 SoC clock controllers support"
>> depends on ARM64
>> diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile
>> index 9ee4b954c896..4420af628b31 100644
>> --- a/drivers/clk/meson/Makefile
>> +++ b/drivers/clk/meson/Makefile
>> @@ -19,6 +19,7 @@ obj-$(CONFIG_COMMON_CLK_AXG) += axg.o axg-aoclk.o
>> obj-$(CONFIG_COMMON_CLK_AXG_AUDIO) += axg-audio.o
>> obj-$(CONFIG_COMMON_CLK_A1_PLL) += a1-pll.o
>> obj-$(CONFIG_COMMON_CLK_A1_PERIPHERALS) += a1-peripherals.o
>> +obj-$(CONFIG_COMMON_CLK_C3_PLL) += c3-pll.o
>> obj-$(CONFIG_COMMON_CLK_GXBB) += gxbb.o gxbb-aoclk.o
>> obj-$(CONFIG_COMMON_CLK_G12A) += g12a.o g12a-aoclk.o
>> obj-$(CONFIG_COMMON_CLK_MESON8B) += meson8b.o meson8-ddr.o
>> diff --git a/drivers/clk/meson/c3-pll.c b/drivers/clk/meson/c3-pll.c
>> new file mode 100644
>> index 000000000000..5244dc19ab6e
>> --- /dev/null
>> +++ b/drivers/clk/meson/c3-pll.c
>> @@ -0,0 +1,510 @@
>> +// SPDX-License-Identifier: GPL-2.0-only
>> +/*
>> + * Amlogic C3 PLL Controller Driver
>> + *
>> + * Copyright (c) 2023 Amlogic, inc.
>> + * Author: Chuan Liu <chuan.liu@amlogic.com>
>
> If Chuan is Author, shouldn't get his Signed-off-by ?
> Maybe Co-developed-by as well ?
>
>> + */
>> +
>> +#include <linux/clk-provider.h>
>> +#include <linux/of_device.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/clk.h>
>> +#include "clk-regmap.h"
>> +#include "clk-pll.h"
>> +#include "c3-pll.h"
>> +#include "meson-clkc-utils.h"
>> +#include <dt-bindings/clock/amlogic,c3-pll-clkc.h>
>> +
>> +#define MEMBER_REG_PARM(_member_name, _reg, _shift, _width) \
>> + ._member_name = { \
>> + .reg_off = _reg, \
>> + .shift = _shift, \
>> + .width = _width, \
>> +}
>> +
>> +#define __AML_CLK_PLL(_name, _en_reg, _en_shift, _en_width, \
>> + _m_reg, _m_shift, _m_width, \
>> + _f_reg, _f_shift, _f_width, \
>> + _n_reg, _n_shift, _n_width, \
>> + _l_reg, _l_shift, _l_width, \
>> + _r_reg, _r_shift, _r_width, \
>> + _init_reg, _init_reg_cnt, _range, _table, \
>> + _dflags, _ops, _pname, _pdata, _phw, _iflags) \
>> +static struct clk_regmap _name = { \
>> + .data = &(struct meson_clk_pll_data){ \
>> + MEMBER_REG_PARM(en, \
>> + _en_reg, _en_shift, _en_width), \
>> + MEMBER_REG_PARM(m, \
>> + _m_reg, _m_shift, _m_width), \
>> + MEMBER_REG_PARM(frac, \
>> + _f_reg, _f_shift, _f_width), \
>> + MEMBER_REG_PARM(n, \
>> + _n_reg, _n_shift, _n_width), \
>> + MEMBER_REG_PARM(l, \
>> + _l_reg, _l_shift, _l_width), \
>> + MEMBER_REG_PARM(rst, \
>> + _r_reg, _r_shift, _r_width), \
>> + .range = _range, \
>> + .table = _table, \
>> + .init_regs = _init_reg, \
>> + .init_count = _init_reg_cnt, \
>> + .flags = _dflags, \
>> + }, \
>> + .hw.init = &(struct clk_init_data){ \
>> + .name = #_name, \
>> + .ops = _ops, \
>> + .parent_names = _pname, \
>> + .parent_data = _pdata, \
>> + .parent_hws = (const struct clk_hw *[]) {_phw}, \
>> + .num_parents = 1, \
>> + .flags = _iflags, \
>> + }, \
>> +}
>> +
>> +#define __AML_CLK_MUX(_name, _reg, _mask, _shift, _table, _dflags, \
>> + _ops, _pname, _pdata, _phw, _pnub, _iflags) \
>> +static struct clk_regmap _name = { \
>> + .data = &(struct clk_regmap_mux_data){ \
>> + .offset = _reg, \
>> + .mask = _mask, \
>> + .shift = _shift, \
>> + .table = _table, \
>> + .flags = _dflags, \
>> + }, \
>> + .hw.init = &(struct clk_init_data){ \
>> + .name = #_name, \
>> + .ops = _ops, \
>> + .parent_names = _pname, \
>> + .parent_data = _pdata, \
>> + .parent_hws = (const struct clk_hw *[]) { _phw }, \
>> + .num_parents = _pnub, \
>> + .flags = _iflags, \
>> + }, \
>> +}
>> +
>> +#define __AML_CLK_DIV(_name, _reg, _shift, _width, _table, _dflags, \
>> + _ops, _pname, _pdata, _phw, _iflags) \
>> +static struct clk_regmap _name = { \
>> + .data = &(struct clk_regmap_div_data){ \
>> + .offset = _reg, \
>> + .shift = _shift, \
>> + .width = _width, \
>> + .table = _table, \
>> + .flags = _dflags, \
>> + }, \
>> + .hw.init = &(struct clk_init_data){ \
>> + .name = #_name, \
>> + .ops = _ops, \
>> + .parent_names = _pname, \
>> + .parent_data = _pdata, \
>> + .parent_hws = (const struct clk_hw *[]) { _phw }, \
>> + .num_parents = 1, \
>> + .flags = _iflags, \
>> + }, \
>> +}
>> +
>> +#define __AML_CLK_GATE(_name, _reg, _bit, _gflags, \
>> + _ops, _pname, _pdata, _phw, _iflags) \
>> +static struct clk_regmap _name = { \
>> + .data = &(struct clk_regmap_gate_data){ \
>> + .offset = _reg, \
>> + .bit_idx = _bit, \
>> + .flags = _gflags, \
>> + }, \
>> + .hw.init = &(struct clk_init_data) { \
>> + .name = #_name, \
>> + .ops = _ops, \
>> + .parent_names = _pname, \
>> + .parent_data = _pdata, \
>> + .parent_hws = (const struct clk_hw *[]) { _phw }, \
>> + .num_parents = 1, \
>> + .flags = _iflags, \
>> + }, \
>> +}
>> +
>> +#define __AML_CLK_FIXED_FACTOR(_name, _mult, _div, _ops, \
>> + _pname, _pdata, _phw, _iflags) \
>> + static struct clk_fixed_factor _name = { \
>> + .mult = _mult, \
>> + .div = _div, \
>> + .hw.init = &(struct clk_init_data){ \
>> + .name = #_name, \
>> + .ops = _ops, \
>> + .parent_names = _pname, \
>> + .parent_data = _pdata, \
>> + .parent_hws = (const struct clk_hw *[]) { _phw }, \
>> + .num_parents = 1, \
>> + .flags = _iflags, \
>> + }, \
>> +}
>> +
>> +#define AML_CLK_PLL_RW(_name, _en_reg, _en_shift, _en_width, \
>> + _m_reg, _m_shift, _m_width, \
>> + _f_reg, _f_shift, _f_width, \
>> + _n_reg, _n_shift, _n_width, \
>> + _l_reg, _l_shift, _l_width, \
>> + _r_reg, _r_shift, _r_width, \
>> + _init_reg, _init_reg_cnt, _range, _table, _dflags,\
>> + _pdata, _iflags) \
>> + __AML_CLK_PLL(_name, _en_reg, _en_shift, _en_width, \
>> + _m_reg, _m_shift, _m_width, \
>> + _f_reg, _f_shift, _f_width, \
>> + _n_reg, _n_shift, _n_width, \
>> + _l_reg, _l_shift, _l_width, \
>> + _r_reg, _r_shift, _r_width, \
>> + _init_reg, _init_reg_cnt, _range, _table, \
>> + _dflags, &meson_clk_pll_ops, \
>> + NULL, _pdata, NULL, _iflags)
>> +
>> +#define AML_CLK_PLL_RO(_name, _en_reg, _en_shift, _en_width, \
>> + _m_reg, _m_shift, _m_width, \
>> + _f_reg, _f_shift, _f_width, \
>> + _n_reg, _n_shift, _n_width, \
>> + _l_reg, _l_shift, _l_width, \
>> + _r_reg, _r_shift, _r_width, \
>> + _init_reg, _init_reg_cnt, _range, _table, \
>> + _dflags, _pdata, _iflags) \
>> + __AML_CLK_PLL(_name, _en_reg, _en_shift, _en_width, \
>> + _m_reg, _m_shift, _m_width, \
>> + _f_reg, _f_shift, _f_width, \
>> + _n_reg, _n_shift, _n_width, \
>> + _l_reg, _l_shift, _l_width, \
>> + _r_reg, _r_shift, _r_width, \
>> + _init_reg, _init_reg_cnt, _range, _table, \
>> + _dflags, &meson_clk_pll_ro_ops, \
>> + NULL, _pdata, NULL, _iflags)
>> +
>> +#define AML_CLK_MUX_RW(_name, _reg, _mask, _shift, _table, _dflags, \
>> + _pdata, _iflags) \
>> + __AML_CLK_MUX(_name, _reg, _mask, _shift, _table, _dflags, \
>> + &clk_regmap_mux_ops, NULL, _pdata, NULL, \
>> + ARRAY_SIZE(_pdata), _iflags)
>> +
>> +#define AML_CLK_DIV_RW(_name, _reg, _shift, _width, _table, _dflags, \
>> + _phw, _iflags) \
>> + __AML_CLK_DIV(_name, _reg, _shift, _width, _table, _dflags, \
>> + &clk_regmap_divider_ops, NULL, NULL, \
>> + _phw, _iflags)
>> +
>> +#define AML_CLK_DIV_RO(_name, _reg, _shift, _width, _table, _dflags, \
>> + _phw, _iflags) \
>> + __AML_CLK_DIV(_name, _reg, _shift, _width, _table, _dflags, \
>> + &clk_regmap_divider_ro_ops, NULL, NULL, \
>> + _phw, _iflags)
>> +
>> +#define AML_CLK_GATE_RW(_name, _reg, _bit, _dflags, _phw, _iflags) \
>> + __AML_CLK_GATE(_name, _reg, _bit, _dflags, \
>> + &clk_regmap_gate_ops, NULL, NULL, _phw, \
>> + _iflags)
>> +
>> +#define AML_CLK_GATE_RO(_name, _reg, _bit, _dflags, _phw, _iflags) \
>> + __AML_CLK_GATE(_name, _reg, _bit, _dflags, \
>> + &clk_regmap_gate_ro_ops, NULL, NULL, _phw, \
>> + _iflags)
>> +
>> +#define AML_CLK_FIXED_FACTOR(_name, _mult, _div, _phw, _iflags) \
>> + __AML_CLK_FIXED_FACTOR(_name, _mult, _div, \
>> + &clk_fixed_factor_ops, NULL, NULL, \
>> + _phw, _iflags)
>> +
>
> I don't get why all these macro are needed ? I don't see a 10 instances
> of the very same clock that would justify this.
>
> It makes this driver borderline un-reviewable.
>
> Unless you can provide a very reason why it is better like this, please
> have a look a the a1 and s4 controllers and re-submit.
>
> Same goes for patch #4
>
>
>> +static const struct clk_parent_data pll_dco_parent = {
>> + .fw_name = "pll_in",
>> +};
>> +
>> +static const struct clk_parent_data mclk_pll_dco_parent = {
>> + .fw_name = "mclk_pll_in",
>> +};
>> +
>> +AML_CLK_PLL_RO(fixed_pll_dco, ANACTRL_FIXPLL_CTRL0, 28, 1, /* en */
>> + ANACTRL_FIXPLL_CTRL0, 0, 8, /* m */
>> + 0, 0, 0, /* frac */
>> + ANACTRL_FIXPLL_CTRL0, 16, 5, /* n */
>> + ANACTRL_FIXPLL_CTRL0, 31, 1, /* lock */
>> + ANACTRL_FIXPLL_CTRL0, 29, 1, /* rst */
>> + NULL, 0, NULL, NULL, 0, &pll_dco_parent, 0);
>> +AML_CLK_DIV_RO(fixed_pll, ANACTRL_FIXPLL_CTRL0, 12, 3, NULL,
>> + CLK_DIVIDER_POWER_OF_TWO, &fixed_pll_dco.hw, 0);
>> +AML_CLK_FIXED_FACTOR(fclk_div40_div, 1, 40, &fixed_pll.hw, 0);
>> +AML_CLK_GATE_RO(fclk_div40, ANACTRL_FIXPLL_CTRL4, 0, 0, &fclk_div40_div.hw, 0);
>> +AML_CLK_FIXED_FACTOR(fclk_div2_div, 1, 2, &fixed_pll.hw, 0);
>> +AML_CLK_GATE_RO(fclk_div2, ANACTRL_FIXPLL_CTRL4, 24, 0, &fclk_div2_div.hw, 0);
>> +AML_CLK_FIXED_FACTOR(fclk_div2p5_div, 2, 5, &fixed_pll.hw, 0);
>> +AML_CLK_GATE_RO(fclk_div2p5, ANACTRL_FIXPLL_CTRL4, 4, 0, &fclk_div2p5_div.hw, 0);
>> +AML_CLK_FIXED_FACTOR(fclk_div3_div, 1, 3, &fixed_pll.hw, 0);
>> +AML_CLK_GATE_RO(fclk_div3, ANACTRL_FIXPLL_CTRL4, 20, 0, &fclk_div3_div.hw, 0);
>> +AML_CLK_FIXED_FACTOR(fclk_div4_div, 1, 4, &fixed_pll.hw, 0);
>> +AML_CLK_GATE_RO(fclk_div4, ANACTRL_FIXPLL_CTRL4, 21, 0, &fclk_div4_div.hw, 0);
>> +AML_CLK_FIXED_FACTOR(fclk_div5_div, 1, 5, &fixed_pll.hw, 0);
>> +AML_CLK_GATE_RO(fclk_div5, ANACTRL_FIXPLL_CTRL4, 22, 0, &fclk_div5_div.hw, 0);
>> +AML_CLK_FIXED_FACTOR(fclk_div7_div, 1, 7, &fixed_pll.hw, 0);
>> +AML_CLK_GATE_RO(fclk_div7, ANACTRL_FIXPLL_CTRL4, 23, 0, &fclk_div7_div.hw, 0);
>> +
>> +static const struct reg_sequence c3_gp0_init_regs[] = {
>> + { .reg = ANACTRL_GP0PLL_CTRL1, .def = 0x0 },
>> + { .reg = ANACTRL_GP0PLL_CTRL2, .def = 0x0 },
>> + { .reg = ANACTRL_GP0PLL_CTRL3, .def = 0x48681c00 },
>> + { .reg = ANACTRL_GP0PLL_CTRL4, .def = 0x88770290 },
>> + { .reg = ANACTRL_GP0PLL_CTRL5, .def = 0x3927200a },
>> + { .reg = ANACTRL_GP0PLL_CTRL6, .def = 0x56540000, .delay_us = 10 },
>> + { .reg = ANACTRL_GP0PLL_CTRL0, .def = 0x080304fa },
>> + { .reg = ANACTRL_GP0PLL_CTRL0, .def = 0x380304fa, .delay_us = 10 },
>> + { .reg = ANACTRL_GP0PLL_CTRL0, .def = 0X180304fa }
>> +};
>> +
>> +static const struct pll_params_table c3_gp0_pll_params_table[] = {
>> + PLL_PARAMS(150, 1), /* DCO = 3600M */
>> + PLL_PARAMS(130, 1), /* DCO = 3120M */
>> + PLL_PARAMS(192, 1), /* DCO = 4608M */
>> + PLL_PARAMS(125, 1), /* DCO = 3000M */
>> + { /* sentinel */ }
>> +};
>> +
>> +/* The maximum frequency divider supports is 32, not 128(2^7) */
>> +static const struct clk_div_table c3_gp0_pll_od_table[] = {
>> + { 0, 1 },
>> + { 1, 2 },
>> + { 2, 4 },
>> + { 3, 8 },
>> + { 4, 16 },
>> + { 5, 32 },
>> + { /* sentinel */ }
>> +};
>> +
>> +AML_CLK_PLL_RW(gp0_pll_dco, ANACTRL_GP0PLL_CTRL0, 28, 1, /* en */
>> + ANACTRL_GP0PLL_CTRL0, 0, 9, /* m */
>> + ANACTRL_GP0PLL_CTRL1, 0, 19, /* frac */
>> + ANACTRL_GP0PLL_CTRL0, 10, 5, /* n */
>> + ANACTRL_GP0PLL_CTRL0, 31, 1, /* lock */
>> + ANACTRL_GP0PLL_CTRL0, 29, 1, /* rst */
>> + c3_gp0_init_regs, ARRAY_SIZE(c3_gp0_init_regs),
>> + NULL, c3_gp0_pll_params_table, 0,
>> + &pll_dco_parent, 0);
>> +AML_CLK_DIV_RW(gp0_pll, ANACTRL_GP0PLL_CTRL0, 16, 3,
>> + c3_gp0_pll_od_table, 0,
>> + &gp0_pll_dco.hw, CLK_SET_RATE_PARENT);
>> +
>> +static const struct reg_sequence c3_hifi_init_regs[] = {
>> + { .reg = ANACTRL_HIFIPLL_CTRL0, .def = 0x08010496 },
>> + { .reg = ANACTRL_HIFIPLL_CTRL0, .def = 0x38010496 },
>> + { .reg = ANACTRL_HIFIPLL_CTRL1, .def = 0x0000ce40 },
>> + { .reg = ANACTRL_HIFIPLL_CTRL2, .def = 0x00000000 },
>> + { .reg = ANACTRL_HIFIPLL_CTRL3, .def = 0x6a285c00 },
>> + { .reg = ANACTRL_HIFIPLL_CTRL4, .def = 0x65771290 },
>> + { .reg = ANACTRL_HIFIPLL_CTRL5, .def = 0x3927200a },
>> + { .reg = ANACTRL_HIFIPLL_CTRL6, .def = 0x56540000, .delay_us = 50 },
>> + { .reg = ANACTRL_HIFIPLL_CTRL0, .def = 0x18010496, .delay_us = 20 },
>> +};
>> +
>> +static const struct pll_params_table c3_hifi_pll_params_table[] = {
>> + PLL_PARAMS(150, 1), /* DCO = 3600M */
>> + PLL_PARAMS(130, 1), /* DCO = 3120M */
>> + PLL_PARAMS(192, 1), /* DCO = 4608M */
>> + PLL_PARAMS(125, 1), /* DCO = 3000M */
>> + { /* sentinel */ }
>> +};
>> +
>> +AML_CLK_PLL_RW(hifi_pll_dco, ANACTRL_HIFIPLL_CTRL0, 28, 1, /* en */
>> + ANACTRL_HIFIPLL_CTRL0, 0, 8, /* m */
>> + ANACTRL_HIFIPLL_CTRL1, 0, 19, /* frac */
>> + ANACTRL_HIFIPLL_CTRL0, 10, 5, /* n */
>> + ANACTRL_HIFIPLL_CTRL0, 31, 1, /* lock */
>> + ANACTRL_HIFIPLL_CTRL0, 29, 1, /* rst */
>> + c3_hifi_init_regs, ARRAY_SIZE(c3_hifi_init_regs),
>> + NULL, c3_hifi_pll_params_table, 0,
>> + &pll_dco_parent, 0);
>> +AML_CLK_DIV_RW(hifi_pll, ANACTRL_HIFIPLL_CTRL0, 16, 2,
>> + NULL, CLK_DIVIDER_POWER_OF_TWO,
>> + &hifi_pll_dco.hw, CLK_SET_RATE_PARENT);
>> +
>> +static const struct reg_sequence c3_mclk_init_regs[] = {
>> + { .reg = ANACTRL_MPLL_CTRL0, .def = 0x20011063 },
>> + { .reg = ANACTRL_MPLL_CTRL0, .def = 0x30011063 },
>> + { .reg = ANACTRL_MPLL_CTRL1, .def = 0x1420500f },
>> + { .reg = ANACTRL_MPLL_CTRL2, .def = 0x00023041 },
>> + { .reg = ANACTRL_MPLL_CTRL3, .def = 0x18180000 },
>> + { .reg = ANACTRL_MPLL_CTRL0, .def = 0x10011063 },
>> + { .reg = ANACTRL_MPLL_CTRL2, .def = 0x00023001 }
>> +};
>> +
>> +static const struct pll_params_table c3_mclk_pll_params_table[] = {
>> + PLL_PARAMS(99, 1), /* VCO = 2376M */
>> + { /* sentinel */ }
>> +};
>> +
>> +static const struct clk_div_table c3_mpll_od_table[] = {
>> + { 0, 1 },
>> + { 1, 2 },
>> + { 2, 4 },
>> + { 3, 8 },
>> + { 4, 16 },
>> + { /* sentinel */ }
>> +};
>> +
>> +AML_CLK_PLL_RW(mclk_pll_dco, ANACTRL_MPLL_CTRL0, 28, 1, /* en */
>> + ANACTRL_MPLL_CTRL0, 0, 8, /* m */
>> + 0, 0, 0, /* frac */
>> + ANACTRL_MPLL_CTRL0, 16, 5, /* n */
>> + ANACTRL_MPLL_CTRL0, 31, 1, /* lock */
>> + ANACTRL_MPLL_CTRL0, 29, 1, /* rst */
>> + c3_mclk_init_regs, ARRAY_SIZE(c3_mclk_init_regs),
>> + NULL, c3_mclk_pll_params_table, 0,
>> + &mclk_pll_dco_parent, 0);
>> +AML_CLK_DIV_RW(mclk_pll, ANACTRL_MPLL_CTRL0, 12, 3,
>> + c3_mpll_od_table, 0,
>> + &mclk_pll_dco.hw, CLK_SET_RATE_PARENT);
>> +AML_CLK_DIV_RW(mclk_pll_clk, ANACTRL_MPLL_CTRL4, 16, 5, NULL,
>> + CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
>> + &mclk_pll.hw, CLK_SET_RATE_PARENT);
>> +
>> +static const struct clk_parent_data mclk_parent[] = {
>> + { .hw = &mclk_pll_clk.hw },
>> + { .fw_name = "mclk_pll_in" },
>> + { .hw = &fclk_div40.hw }
>> +};
>> +
>> +AML_CLK_MUX_RW(mclk0_sel, ANACTRL_MPLL_CTRL4, 0x3, 4, NULL, 0,
>> + mclk_parent, 0);
>> +AML_CLK_GATE_RW(mclk0_sel_out, ANACTRL_MPLL_CTRL4, 1, 0,
>> + &mclk0_sel.hw, CLK_SET_RATE_PARENT);
>> +AML_CLK_DIV_RW(mclk0_div, ANACTRL_MPLL_CTRL4, 2, 1, NULL, 0,
>> + &mclk0_sel_out.hw, CLK_SET_RATE_PARENT);
>> +AML_CLK_GATE_RW(mclk0, ANACTRL_MPLL_CTRL4, 0, 0,
>> + &mclk0_div.hw, CLK_SET_RATE_PARENT);
>> +
>> +AML_CLK_MUX_RW(mclk1_sel, ANACTRL_MPLL_CTRL4, 0x3, 12, NULL, 0,
>> + mclk_parent, 0);
>> +AML_CLK_GATE_RW(mclk1_sel_out, ANACTRL_MPLL_CTRL4, 9, 0,
>> + &mclk1_sel.hw, CLK_SET_RATE_PARENT);
>> +AML_CLK_DIV_RW(mclk1_div, ANACTRL_MPLL_CTRL4, 10, 1, NULL, 0,
>> + &mclk1_sel_out.hw, CLK_SET_RATE_PARENT);
>> +AML_CLK_GATE_RW(mclk1, ANACTRL_MPLL_CTRL4, 8, 0,
>> + &mclk1_div.hw, CLK_SET_RATE_PARENT);
>> +
>> +static struct clk_hw *c3_pll_hw_clks[] = {
>> + [CLKID_FIXED_PLL_DCO] = &fixed_pll_dco.hw,
>> + [CLKID_FIXED_PLL] = &fixed_pll.hw,
>> + [CLKID_FCLK_DIV40_DIV] = &fclk_div40_div.hw,
>> + [CLKID_FCLK_DIV40] = &fclk_div40.hw,
>> + [CLKID_FCLK_DIV2_DIV] = &fclk_div2_div.hw,
>> + [CLKID_FCLK_DIV2] = &fclk_div2.hw,
>> + [CLKID_FCLK_DIV2P5_DIV] = &fclk_div2p5_div.hw,
>> + [CLKID_FCLK_DIV2P5] = &fclk_div2p5.hw,
>> + [CLKID_FCLK_DIV3_DIV] = &fclk_div3_div.hw,
>> + [CLKID_FCLK_DIV3] = &fclk_div3.hw,
>> + [CLKID_FCLK_DIV4_DIV] = &fclk_div4_div.hw,
>> + [CLKID_FCLK_DIV4] = &fclk_div4.hw,
>> + [CLKID_FCLK_DIV5_DIV] = &fclk_div5_div.hw,
>> + [CLKID_FCLK_DIV5] = &fclk_div5.hw,
>> + [CLKID_FCLK_DIV7_DIV] = &fclk_div7_div.hw,
>> + [CLKID_FCLK_DIV7] = &fclk_div7.hw,
>> + [CLKID_GP0_PLL_DCO] = &gp0_pll_dco.hw,
>> + [CLKID_GP0_PLL] = &gp0_pll.hw,
>> + [CLKID_HIFI_PLL_DCO] = &hifi_pll_dco.hw,
>> + [CLKID_HIFI_PLL] = &hifi_pll.hw,
>> + [CLKID_MCLK_PLL_DCO] = &mclk_pll_dco.hw,
>> + [CLKID_MCLK_PLL] = &mclk_pll.hw,
>> + [CLKID_MCLK_PLL_CLK] = &mclk_pll_clk.hw,
>> + [CLKID_MCLK0_SEL] = &mclk0_sel.hw,
>> + [CLKID_MCLK0_SEL_OUT] = &mclk0_sel_out.hw,
>> + [CLKID_MCLK0_DIV] = &mclk0_div.hw,
>> + [CLKID_MCLK0] = &mclk0.hw,
>> + [CLKID_MCLK1_SEL] = &mclk1_sel.hw,
>> + [CLKID_MCLK1_SEL_OUT] = &mclk1_sel_out.hw,
>> + [CLKID_MCLK1_DIV] = &mclk1_div.hw,
>> + [CLKID_MCLK1] = &mclk1.hw
>> +};
>> +
>> +/* Convenience table to populate regmap in .probe */
>> +static struct clk_regmap *const c3_pll_clk_regmaps[] = {
>> + &fixed_pll_dco,
>> + &fixed_pll,
>> + &fclk_div40,
>> + &fclk_div2,
>> + &fclk_div2p5,
>> + &fclk_div3,
>> + &fclk_div4,
>> + &fclk_div5,
>> + &fclk_div7,
>> + &gp0_pll_dco,
>> + &gp0_pll,
>> + &hifi_pll_dco,
>> + &hifi_pll,
>> + &mclk_pll_dco,
>> + &mclk_pll,
>> + &mclk_pll_clk,
>> + &mclk0_sel,
>> + &mclk0_sel_out,
>> + &mclk0_div,
>> + &mclk0,
>> + &mclk1_sel,
>> + &mclk1_sel_out,
>> + &mclk1_div,
>> + &mclk1,
>> +};
>> +
>> +static struct regmap_config clkc_regmap_config = {
>> + .reg_bits = 32,
>> + .val_bits = 32,
>> + .reg_stride = 4,
>> +};
>> +
>> +static struct meson_clk_hw_data c3_pll_clks = {
>> + .hws = c3_pll_hw_clks,
>> + .num = ARRAY_SIZE(c3_pll_hw_clks),
>> +};
>> +
>> +static int aml_c3_pll_probe(struct platform_device *pdev)
>> +{
>> + struct device *dev = &pdev->dev;
>> + struct regmap *regmap;
>> + void __iomem *base;
>> + int clkid, ret, i;
>> +
>> + base = devm_platform_ioremap_resource(pdev, 0);
>> + if (IS_ERR(base))
>> + return PTR_ERR(base);
>> +
>> + regmap = devm_regmap_init_mmio(dev, base, &clkc_regmap_config);
>> + if (IS_ERR(regmap))
>> + return PTR_ERR(regmap);
>> +
>> + /* Populate regmap for the regmap backed clocks */
>> + for (i = 0; i < ARRAY_SIZE(c3_pll_clk_regmaps); i++)
>> + c3_pll_clk_regmaps[i]->map = regmap;
>> +
>> + for (clkid = 0; clkid < c3_pll_clks.num; clkid++) {
>> + /* array might be sparse */
>> + if (!c3_pll_clks.hws[clkid])
>> + continue;
>> +
>> + ret = devm_clk_hw_register(dev, c3_pll_clks.hws[clkid]);
>> + if (ret) {
>> + dev_err(dev, "Clock registration failed\n");
>> + return ret;
>> + }
>> + }
>> +
>> + return devm_of_clk_add_hw_provider(dev, meson_clk_hw_get,
>> + &c3_pll_clks);
>> +}
>> +
>> +static const struct of_device_id c3_pll_clkc_match_table[] = {
>> + {
>> + .compatible = "amlogic,c3-pll-clkc",
>> + },
>> + {}
>> +};
>> +MODULE_DEVICE_TABLE(of, c3_pll_clkc_match_table);
>> +
>> +static struct platform_driver c3_pll_driver = {
>> + .probe = aml_c3_pll_probe,
>> + .driver = {
>> + .name = "c3-pll-clkc",
>> + .of_match_table = c3_pll_clkc_match_table,
>> + },
>> +};
>> +
>> +module_platform_driver(c3_pll_driver);
>> +MODULE_AUTHOR("Chuan Liu <chuan.liu@amlogic.com>");
>> +MODULE_LICENSE("GPL");
>> diff --git a/drivers/clk/meson/c3-pll.h b/drivers/clk/meson/c3-pll.h
>> new file mode 100644
>> index 000000000000..92a08196a46f
>> --- /dev/null
>> +++ b/drivers/clk/meson/c3-pll.h
>> @@ -0,0 +1,35 @@
>> +/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
>> +/*
>> + * Copyright (c) 2023 Amlogic, inc.
>> + * Author: Chuan Liu <chuan.liu@amlogic.com>
>> + */
>> +
>> +#ifndef __AML_C3_PLL_H__
>> +#define __AML_C3_PLL_H__
>> +
>> +#define ANACTRL_FIXPLL_CTRL0 0x0040
>> +#define ANACTRL_FIXPLL_CTRL4 0x0050
>> +#define ANACTRL_GP0PLL_CTRL0 0x0080
>> +#define ANACTRL_GP0PLL_CTRL1 0x0084
>> +#define ANACTRL_GP0PLL_CTRL2 0x0088
>> +#define ANACTRL_GP0PLL_CTRL3 0x008c
>> +#define ANACTRL_GP0PLL_CTRL4 0x0090
>> +#define ANACTRL_GP0PLL_CTRL5 0x0094
>> +#define ANACTRL_GP0PLL_CTRL6 0x0098
>> +#define ANACTRL_GP0PLL_STS 0x009c
>> +#define ANACTRL_HIFIPLL_CTRL0 0x0100
>> +#define ANACTRL_HIFIPLL_CTRL1 0x0104
>> +#define ANACTRL_HIFIPLL_CTRL2 0x0108
>> +#define ANACTRL_HIFIPLL_CTRL3 0x010c
>> +#define ANACTRL_HIFIPLL_CTRL4 0x0110
>> +#define ANACTRL_HIFIPLL_CTRL5 0x0114
>> +#define ANACTRL_HIFIPLL_CTRL6 0x0118
>> +#define ANACTRL_HIFIPLL_STS 0x011c
>> +#define ANACTRL_MPLL_CTRL0 0x0180
>> +#define ANACTRL_MPLL_CTRL1 0x0184
>> +#define ANACTRL_MPLL_CTRL2 0x0188
>> +#define ANACTRL_MPLL_CTRL3 0x018c
>> +#define ANACTRL_MPLL_CTRL4 0x0190
>> +#define ANACTRL_MPLL_STS 0x01a4
>> +
>> +#endif /* __AML_C3_PLL_H__ */
>
diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig index c5303e4c1604..76be4bbd2afb 100644 --- a/drivers/clk/meson/Kconfig +++ b/drivers/clk/meson/Kconfig @@ -128,6 +128,18 @@ config COMMON_CLK_A1_PERIPHERALS device, A1 SoC Family. Say Y if you want A1 Peripherals clock controller to work. +config COMMON_CLK_C3_PLL + tristate "Amlogic C3 PLL clock controller" + default y + select COMMON_CLK_MESON_REGMAP + select COMMON_CLK_MESON_PLL + select COMMON_CLK_MESON_CLKC_UTILS + help + Support for the PLL clock controller on Amlogic C302X and C308L devices, + AKA c3. Amlogic C302X and C308L devices include AW402, AW409 and AW419. + Say Y if you want the board to work, because PLLs are the parent of most + peripherals. + config COMMON_CLK_G12A tristate "G12 and SM1 SoC clock controllers support" depends on ARM64 diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile index 9ee4b954c896..4420af628b31 100644 --- a/drivers/clk/meson/Makefile +++ b/drivers/clk/meson/Makefile @@ -19,6 +19,7 @@ obj-$(CONFIG_COMMON_CLK_AXG) += axg.o axg-aoclk.o obj-$(CONFIG_COMMON_CLK_AXG_AUDIO) += axg-audio.o obj-$(CONFIG_COMMON_CLK_A1_PLL) += a1-pll.o obj-$(CONFIG_COMMON_CLK_A1_PERIPHERALS) += a1-peripherals.o +obj-$(CONFIG_COMMON_CLK_C3_PLL) += c3-pll.o obj-$(CONFIG_COMMON_CLK_GXBB) += gxbb.o gxbb-aoclk.o obj-$(CONFIG_COMMON_CLK_G12A) += g12a.o g12a-aoclk.o obj-$(CONFIG_COMMON_CLK_MESON8B) += meson8b.o meson8-ddr.o diff --git a/drivers/clk/meson/c3-pll.c b/drivers/clk/meson/c3-pll.c new file mode 100644 index 000000000000..5244dc19ab6e --- /dev/null +++ b/drivers/clk/meson/c3-pll.c @@ -0,0 +1,510 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Amlogic C3 PLL Controller Driver + * + * Copyright (c) 2023 Amlogic, inc. + * Author: Chuan Liu <chuan.liu@amlogic.com> + */ + +#include <linux/clk-provider.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include "clk-regmap.h" +#include "clk-pll.h" +#include "c3-pll.h" +#include "meson-clkc-utils.h" +#include <dt-bindings/clock/amlogic,c3-pll-clkc.h> + +#define MEMBER_REG_PARM(_member_name, _reg, _shift, _width) \ + ._member_name = { \ + .reg_off = _reg, \ + .shift = _shift, \ + .width = _width, \ +} + +#define __AML_CLK_PLL(_name, _en_reg, _en_shift, _en_width, \ + _m_reg, _m_shift, _m_width, \ + _f_reg, _f_shift, _f_width, \ + _n_reg, _n_shift, _n_width, \ + _l_reg, _l_shift, _l_width, \ + _r_reg, _r_shift, _r_width, \ + _init_reg, _init_reg_cnt, _range, _table, \ + _dflags, _ops, _pname, _pdata, _phw, _iflags) \ +static struct clk_regmap _name = { \ + .data = &(struct meson_clk_pll_data){ \ + MEMBER_REG_PARM(en, \ + _en_reg, _en_shift, _en_width), \ + MEMBER_REG_PARM(m, \ + _m_reg, _m_shift, _m_width), \ + MEMBER_REG_PARM(frac, \ + _f_reg, _f_shift, _f_width), \ + MEMBER_REG_PARM(n, \ + _n_reg, _n_shift, _n_width), \ + MEMBER_REG_PARM(l, \ + _l_reg, _l_shift, _l_width), \ + MEMBER_REG_PARM(rst, \ + _r_reg, _r_shift, _r_width), \ + .range = _range, \ + .table = _table, \ + .init_regs = _init_reg, \ + .init_count = _init_reg_cnt, \ + .flags = _dflags, \ + }, \ + .hw.init = &(struct clk_init_data){ \ + .name = #_name, \ + .ops = _ops, \ + .parent_names = _pname, \ + .parent_data = _pdata, \ + .parent_hws = (const struct clk_hw *[]) {_phw}, \ + .num_parents = 1, \ + .flags = _iflags, \ + }, \ +} + +#define __AML_CLK_MUX(_name, _reg, _mask, _shift, _table, _dflags, \ + _ops, _pname, _pdata, _phw, _pnub, _iflags) \ +static struct clk_regmap _name = { \ + .data = &(struct clk_regmap_mux_data){ \ + .offset = _reg, \ + .mask = _mask, \ + .shift = _shift, \ + .table = _table, \ + .flags = _dflags, \ + }, \ + .hw.init = &(struct clk_init_data){ \ + .name = #_name, \ + .ops = _ops, \ + .parent_names = _pname, \ + .parent_data = _pdata, \ + .parent_hws = (const struct clk_hw *[]) { _phw }, \ + .num_parents = _pnub, \ + .flags = _iflags, \ + }, \ +} + +#define __AML_CLK_DIV(_name, _reg, _shift, _width, _table, _dflags, \ + _ops, _pname, _pdata, _phw, _iflags) \ +static struct clk_regmap _name = { \ + .data = &(struct clk_regmap_div_data){ \ + .offset = _reg, \ + .shift = _shift, \ + .width = _width, \ + .table = _table, \ + .flags = _dflags, \ + }, \ + .hw.init = &(struct clk_init_data){ \ + .name = #_name, \ + .ops = _ops, \ + .parent_names = _pname, \ + .parent_data = _pdata, \ + .parent_hws = (const struct clk_hw *[]) { _phw }, \ + .num_parents = 1, \ + .flags = _iflags, \ + }, \ +} + +#define __AML_CLK_GATE(_name, _reg, _bit, _gflags, \ + _ops, _pname, _pdata, _phw, _iflags) \ +static struct clk_regmap _name = { \ + .data = &(struct clk_regmap_gate_data){ \ + .offset = _reg, \ + .bit_idx = _bit, \ + .flags = _gflags, \ + }, \ + .hw.init = &(struct clk_init_data) { \ + .name = #_name, \ + .ops = _ops, \ + .parent_names = _pname, \ + .parent_data = _pdata, \ + .parent_hws = (const struct clk_hw *[]) { _phw }, \ + .num_parents = 1, \ + .flags = _iflags, \ + }, \ +} + +#define __AML_CLK_FIXED_FACTOR(_name, _mult, _div, _ops, \ + _pname, _pdata, _phw, _iflags) \ + static struct clk_fixed_factor _name = { \ + .mult = _mult, \ + .div = _div, \ + .hw.init = &(struct clk_init_data){ \ + .name = #_name, \ + .ops = _ops, \ + .parent_names = _pname, \ + .parent_data = _pdata, \ + .parent_hws = (const struct clk_hw *[]) { _phw }, \ + .num_parents = 1, \ + .flags = _iflags, \ + }, \ +} + +#define AML_CLK_PLL_RW(_name, _en_reg, _en_shift, _en_width, \ + _m_reg, _m_shift, _m_width, \ + _f_reg, _f_shift, _f_width, \ + _n_reg, _n_shift, _n_width, \ + _l_reg, _l_shift, _l_width, \ + _r_reg, _r_shift, _r_width, \ + _init_reg, _init_reg_cnt, _range, _table, _dflags,\ + _pdata, _iflags) \ + __AML_CLK_PLL(_name, _en_reg, _en_shift, _en_width, \ + _m_reg, _m_shift, _m_width, \ + _f_reg, _f_shift, _f_width, \ + _n_reg, _n_shift, _n_width, \ + _l_reg, _l_shift, _l_width, \ + _r_reg, _r_shift, _r_width, \ + _init_reg, _init_reg_cnt, _range, _table, \ + _dflags, &meson_clk_pll_ops, \ + NULL, _pdata, NULL, _iflags) + +#define AML_CLK_PLL_RO(_name, _en_reg, _en_shift, _en_width, \ + _m_reg, _m_shift, _m_width, \ + _f_reg, _f_shift, _f_width, \ + _n_reg, _n_shift, _n_width, \ + _l_reg, _l_shift, _l_width, \ + _r_reg, _r_shift, _r_width, \ + _init_reg, _init_reg_cnt, _range, _table, \ + _dflags, _pdata, _iflags) \ + __AML_CLK_PLL(_name, _en_reg, _en_shift, _en_width, \ + _m_reg, _m_shift, _m_width, \ + _f_reg, _f_shift, _f_width, \ + _n_reg, _n_shift, _n_width, \ + _l_reg, _l_shift, _l_width, \ + _r_reg, _r_shift, _r_width, \ + _init_reg, _init_reg_cnt, _range, _table, \ + _dflags, &meson_clk_pll_ro_ops, \ + NULL, _pdata, NULL, _iflags) + +#define AML_CLK_MUX_RW(_name, _reg, _mask, _shift, _table, _dflags, \ + _pdata, _iflags) \ + __AML_CLK_MUX(_name, _reg, _mask, _shift, _table, _dflags, \ + &clk_regmap_mux_ops, NULL, _pdata, NULL, \ + ARRAY_SIZE(_pdata), _iflags) + +#define AML_CLK_DIV_RW(_name, _reg, _shift, _width, _table, _dflags, \ + _phw, _iflags) \ + __AML_CLK_DIV(_name, _reg, _shift, _width, _table, _dflags, \ + &clk_regmap_divider_ops, NULL, NULL, \ + _phw, _iflags) + +#define AML_CLK_DIV_RO(_name, _reg, _shift, _width, _table, _dflags, \ + _phw, _iflags) \ + __AML_CLK_DIV(_name, _reg, _shift, _width, _table, _dflags, \ + &clk_regmap_divider_ro_ops, NULL, NULL, \ + _phw, _iflags) + +#define AML_CLK_GATE_RW(_name, _reg, _bit, _dflags, _phw, _iflags) \ + __AML_CLK_GATE(_name, _reg, _bit, _dflags, \ + &clk_regmap_gate_ops, NULL, NULL, _phw, \ + _iflags) + +#define AML_CLK_GATE_RO(_name, _reg, _bit, _dflags, _phw, _iflags) \ + __AML_CLK_GATE(_name, _reg, _bit, _dflags, \ + &clk_regmap_gate_ro_ops, NULL, NULL, _phw, \ + _iflags) + +#define AML_CLK_FIXED_FACTOR(_name, _mult, _div, _phw, _iflags) \ + __AML_CLK_FIXED_FACTOR(_name, _mult, _div, \ + &clk_fixed_factor_ops, NULL, NULL, \ + _phw, _iflags) + +static const struct clk_parent_data pll_dco_parent = { + .fw_name = "pll_in", +}; + +static const struct clk_parent_data mclk_pll_dco_parent = { + .fw_name = "mclk_pll_in", +}; + +AML_CLK_PLL_RO(fixed_pll_dco, ANACTRL_FIXPLL_CTRL0, 28, 1, /* en */ + ANACTRL_FIXPLL_CTRL0, 0, 8, /* m */ + 0, 0, 0, /* frac */ + ANACTRL_FIXPLL_CTRL0, 16, 5, /* n */ + ANACTRL_FIXPLL_CTRL0, 31, 1, /* lock */ + ANACTRL_FIXPLL_CTRL0, 29, 1, /* rst */ + NULL, 0, NULL, NULL, 0, &pll_dco_parent, 0); +AML_CLK_DIV_RO(fixed_pll, ANACTRL_FIXPLL_CTRL0, 12, 3, NULL, + CLK_DIVIDER_POWER_OF_TWO, &fixed_pll_dco.hw, 0); +AML_CLK_FIXED_FACTOR(fclk_div40_div, 1, 40, &fixed_pll.hw, 0); +AML_CLK_GATE_RO(fclk_div40, ANACTRL_FIXPLL_CTRL4, 0, 0, &fclk_div40_div.hw, 0); +AML_CLK_FIXED_FACTOR(fclk_div2_div, 1, 2, &fixed_pll.hw, 0); +AML_CLK_GATE_RO(fclk_div2, ANACTRL_FIXPLL_CTRL4, 24, 0, &fclk_div2_div.hw, 0); +AML_CLK_FIXED_FACTOR(fclk_div2p5_div, 2, 5, &fixed_pll.hw, 0); +AML_CLK_GATE_RO(fclk_div2p5, ANACTRL_FIXPLL_CTRL4, 4, 0, &fclk_div2p5_div.hw, 0); +AML_CLK_FIXED_FACTOR(fclk_div3_div, 1, 3, &fixed_pll.hw, 0); +AML_CLK_GATE_RO(fclk_div3, ANACTRL_FIXPLL_CTRL4, 20, 0, &fclk_div3_div.hw, 0); +AML_CLK_FIXED_FACTOR(fclk_div4_div, 1, 4, &fixed_pll.hw, 0); +AML_CLK_GATE_RO(fclk_div4, ANACTRL_FIXPLL_CTRL4, 21, 0, &fclk_div4_div.hw, 0); +AML_CLK_FIXED_FACTOR(fclk_div5_div, 1, 5, &fixed_pll.hw, 0); +AML_CLK_GATE_RO(fclk_div5, ANACTRL_FIXPLL_CTRL4, 22, 0, &fclk_div5_div.hw, 0); +AML_CLK_FIXED_FACTOR(fclk_div7_div, 1, 7, &fixed_pll.hw, 0); +AML_CLK_GATE_RO(fclk_div7, ANACTRL_FIXPLL_CTRL4, 23, 0, &fclk_div7_div.hw, 0); + +static const struct reg_sequence c3_gp0_init_regs[] = { + { .reg = ANACTRL_GP0PLL_CTRL1, .def = 0x0 }, + { .reg = ANACTRL_GP0PLL_CTRL2, .def = 0x0 }, + { .reg = ANACTRL_GP0PLL_CTRL3, .def = 0x48681c00 }, + { .reg = ANACTRL_GP0PLL_CTRL4, .def = 0x88770290 }, + { .reg = ANACTRL_GP0PLL_CTRL5, .def = 0x3927200a }, + { .reg = ANACTRL_GP0PLL_CTRL6, .def = 0x56540000, .delay_us = 10 }, + { .reg = ANACTRL_GP0PLL_CTRL0, .def = 0x080304fa }, + { .reg = ANACTRL_GP0PLL_CTRL0, .def = 0x380304fa, .delay_us = 10 }, + { .reg = ANACTRL_GP0PLL_CTRL0, .def = 0X180304fa } +}; + +static const struct pll_params_table c3_gp0_pll_params_table[] = { + PLL_PARAMS(150, 1), /* DCO = 3600M */ + PLL_PARAMS(130, 1), /* DCO = 3120M */ + PLL_PARAMS(192, 1), /* DCO = 4608M */ + PLL_PARAMS(125, 1), /* DCO = 3000M */ + { /* sentinel */ } +}; + +/* The maximum frequency divider supports is 32, not 128(2^7) */ +static const struct clk_div_table c3_gp0_pll_od_table[] = { + { 0, 1 }, + { 1, 2 }, + { 2, 4 }, + { 3, 8 }, + { 4, 16 }, + { 5, 32 }, + { /* sentinel */ } +}; + +AML_CLK_PLL_RW(gp0_pll_dco, ANACTRL_GP0PLL_CTRL0, 28, 1, /* en */ + ANACTRL_GP0PLL_CTRL0, 0, 9, /* m */ + ANACTRL_GP0PLL_CTRL1, 0, 19, /* frac */ + ANACTRL_GP0PLL_CTRL0, 10, 5, /* n */ + ANACTRL_GP0PLL_CTRL0, 31, 1, /* lock */ + ANACTRL_GP0PLL_CTRL0, 29, 1, /* rst */ + c3_gp0_init_regs, ARRAY_SIZE(c3_gp0_init_regs), + NULL, c3_gp0_pll_params_table, 0, + &pll_dco_parent, 0); +AML_CLK_DIV_RW(gp0_pll, ANACTRL_GP0PLL_CTRL0, 16, 3, + c3_gp0_pll_od_table, 0, + &gp0_pll_dco.hw, CLK_SET_RATE_PARENT); + +static const struct reg_sequence c3_hifi_init_regs[] = { + { .reg = ANACTRL_HIFIPLL_CTRL0, .def = 0x08010496 }, + { .reg = ANACTRL_HIFIPLL_CTRL0, .def = 0x38010496 }, + { .reg = ANACTRL_HIFIPLL_CTRL1, .def = 0x0000ce40 }, + { .reg = ANACTRL_HIFIPLL_CTRL2, .def = 0x00000000 }, + { .reg = ANACTRL_HIFIPLL_CTRL3, .def = 0x6a285c00 }, + { .reg = ANACTRL_HIFIPLL_CTRL4, .def = 0x65771290 }, + { .reg = ANACTRL_HIFIPLL_CTRL5, .def = 0x3927200a }, + { .reg = ANACTRL_HIFIPLL_CTRL6, .def = 0x56540000, .delay_us = 50 }, + { .reg = ANACTRL_HIFIPLL_CTRL0, .def = 0x18010496, .delay_us = 20 }, +}; + +static const struct pll_params_table c3_hifi_pll_params_table[] = { + PLL_PARAMS(150, 1), /* DCO = 3600M */ + PLL_PARAMS(130, 1), /* DCO = 3120M */ + PLL_PARAMS(192, 1), /* DCO = 4608M */ + PLL_PARAMS(125, 1), /* DCO = 3000M */ + { /* sentinel */ } +}; + +AML_CLK_PLL_RW(hifi_pll_dco, ANACTRL_HIFIPLL_CTRL0, 28, 1, /* en */ + ANACTRL_HIFIPLL_CTRL0, 0, 8, /* m */ + ANACTRL_HIFIPLL_CTRL1, 0, 19, /* frac */ + ANACTRL_HIFIPLL_CTRL0, 10, 5, /* n */ + ANACTRL_HIFIPLL_CTRL0, 31, 1, /* lock */ + ANACTRL_HIFIPLL_CTRL0, 29, 1, /* rst */ + c3_hifi_init_regs, ARRAY_SIZE(c3_hifi_init_regs), + NULL, c3_hifi_pll_params_table, 0, + &pll_dco_parent, 0); +AML_CLK_DIV_RW(hifi_pll, ANACTRL_HIFIPLL_CTRL0, 16, 2, + NULL, CLK_DIVIDER_POWER_OF_TWO, + &hifi_pll_dco.hw, CLK_SET_RATE_PARENT); + +static const struct reg_sequence c3_mclk_init_regs[] = { + { .reg = ANACTRL_MPLL_CTRL0, .def = 0x20011063 }, + { .reg = ANACTRL_MPLL_CTRL0, .def = 0x30011063 }, + { .reg = ANACTRL_MPLL_CTRL1, .def = 0x1420500f }, + { .reg = ANACTRL_MPLL_CTRL2, .def = 0x00023041 }, + { .reg = ANACTRL_MPLL_CTRL3, .def = 0x18180000 }, + { .reg = ANACTRL_MPLL_CTRL0, .def = 0x10011063 }, + { .reg = ANACTRL_MPLL_CTRL2, .def = 0x00023001 } +}; + +static const struct pll_params_table c3_mclk_pll_params_table[] = { + PLL_PARAMS(99, 1), /* VCO = 2376M */ + { /* sentinel */ } +}; + +static const struct clk_div_table c3_mpll_od_table[] = { + { 0, 1 }, + { 1, 2 }, + { 2, 4 }, + { 3, 8 }, + { 4, 16 }, + { /* sentinel */ } +}; + +AML_CLK_PLL_RW(mclk_pll_dco, ANACTRL_MPLL_CTRL0, 28, 1, /* en */ + ANACTRL_MPLL_CTRL0, 0, 8, /* m */ + 0, 0, 0, /* frac */ + ANACTRL_MPLL_CTRL0, 16, 5, /* n */ + ANACTRL_MPLL_CTRL0, 31, 1, /* lock */ + ANACTRL_MPLL_CTRL0, 29, 1, /* rst */ + c3_mclk_init_regs, ARRAY_SIZE(c3_mclk_init_regs), + NULL, c3_mclk_pll_params_table, 0, + &mclk_pll_dco_parent, 0); +AML_CLK_DIV_RW(mclk_pll, ANACTRL_MPLL_CTRL0, 12, 3, + c3_mpll_od_table, 0, + &mclk_pll_dco.hw, CLK_SET_RATE_PARENT); +AML_CLK_DIV_RW(mclk_pll_clk, ANACTRL_MPLL_CTRL4, 16, 5, NULL, + CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO, + &mclk_pll.hw, CLK_SET_RATE_PARENT); + +static const struct clk_parent_data mclk_parent[] = { + { .hw = &mclk_pll_clk.hw }, + { .fw_name = "mclk_pll_in" }, + { .hw = &fclk_div40.hw } +}; + +AML_CLK_MUX_RW(mclk0_sel, ANACTRL_MPLL_CTRL4, 0x3, 4, NULL, 0, + mclk_parent, 0); +AML_CLK_GATE_RW(mclk0_sel_out, ANACTRL_MPLL_CTRL4, 1, 0, + &mclk0_sel.hw, CLK_SET_RATE_PARENT); +AML_CLK_DIV_RW(mclk0_div, ANACTRL_MPLL_CTRL4, 2, 1, NULL, 0, + &mclk0_sel_out.hw, CLK_SET_RATE_PARENT); +AML_CLK_GATE_RW(mclk0, ANACTRL_MPLL_CTRL4, 0, 0, + &mclk0_div.hw, CLK_SET_RATE_PARENT); + +AML_CLK_MUX_RW(mclk1_sel, ANACTRL_MPLL_CTRL4, 0x3, 12, NULL, 0, + mclk_parent, 0); +AML_CLK_GATE_RW(mclk1_sel_out, ANACTRL_MPLL_CTRL4, 9, 0, + &mclk1_sel.hw, CLK_SET_RATE_PARENT); +AML_CLK_DIV_RW(mclk1_div, ANACTRL_MPLL_CTRL4, 10, 1, NULL, 0, + &mclk1_sel_out.hw, CLK_SET_RATE_PARENT); +AML_CLK_GATE_RW(mclk1, ANACTRL_MPLL_CTRL4, 8, 0, + &mclk1_div.hw, CLK_SET_RATE_PARENT); + +static struct clk_hw *c3_pll_hw_clks[] = { + [CLKID_FIXED_PLL_DCO] = &fixed_pll_dco.hw, + [CLKID_FIXED_PLL] = &fixed_pll.hw, + [CLKID_FCLK_DIV40_DIV] = &fclk_div40_div.hw, + [CLKID_FCLK_DIV40] = &fclk_div40.hw, + [CLKID_FCLK_DIV2_DIV] = &fclk_div2_div.hw, + [CLKID_FCLK_DIV2] = &fclk_div2.hw, + [CLKID_FCLK_DIV2P5_DIV] = &fclk_div2p5_div.hw, + [CLKID_FCLK_DIV2P5] = &fclk_div2p5.hw, + [CLKID_FCLK_DIV3_DIV] = &fclk_div3_div.hw, + [CLKID_FCLK_DIV3] = &fclk_div3.hw, + [CLKID_FCLK_DIV4_DIV] = &fclk_div4_div.hw, + [CLKID_FCLK_DIV4] = &fclk_div4.hw, + [CLKID_FCLK_DIV5_DIV] = &fclk_div5_div.hw, + [CLKID_FCLK_DIV5] = &fclk_div5.hw, + [CLKID_FCLK_DIV7_DIV] = &fclk_div7_div.hw, + [CLKID_FCLK_DIV7] = &fclk_div7.hw, + [CLKID_GP0_PLL_DCO] = &gp0_pll_dco.hw, + [CLKID_GP0_PLL] = &gp0_pll.hw, + [CLKID_HIFI_PLL_DCO] = &hifi_pll_dco.hw, + [CLKID_HIFI_PLL] = &hifi_pll.hw, + [CLKID_MCLK_PLL_DCO] = &mclk_pll_dco.hw, + [CLKID_MCLK_PLL] = &mclk_pll.hw, + [CLKID_MCLK_PLL_CLK] = &mclk_pll_clk.hw, + [CLKID_MCLK0_SEL] = &mclk0_sel.hw, + [CLKID_MCLK0_SEL_OUT] = &mclk0_sel_out.hw, + [CLKID_MCLK0_DIV] = &mclk0_div.hw, + [CLKID_MCLK0] = &mclk0.hw, + [CLKID_MCLK1_SEL] = &mclk1_sel.hw, + [CLKID_MCLK1_SEL_OUT] = &mclk1_sel_out.hw, + [CLKID_MCLK1_DIV] = &mclk1_div.hw, + [CLKID_MCLK1] = &mclk1.hw +}; + +/* Convenience table to populate regmap in .probe */ +static struct clk_regmap *const c3_pll_clk_regmaps[] = { + &fixed_pll_dco, + &fixed_pll, + &fclk_div40, + &fclk_div2, + &fclk_div2p5, + &fclk_div3, + &fclk_div4, + &fclk_div5, + &fclk_div7, + &gp0_pll_dco, + &gp0_pll, + &hifi_pll_dco, + &hifi_pll, + &mclk_pll_dco, + &mclk_pll, + &mclk_pll_clk, + &mclk0_sel, + &mclk0_sel_out, + &mclk0_div, + &mclk0, + &mclk1_sel, + &mclk1_sel_out, + &mclk1_div, + &mclk1, +}; + +static struct regmap_config clkc_regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, +}; + +static struct meson_clk_hw_data c3_pll_clks = { + .hws = c3_pll_hw_clks, + .num = ARRAY_SIZE(c3_pll_hw_clks), +}; + +static int aml_c3_pll_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct regmap *regmap; + void __iomem *base; + int clkid, ret, i; + + base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); + + regmap = devm_regmap_init_mmio(dev, base, &clkc_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + /* Populate regmap for the regmap backed clocks */ + for (i = 0; i < ARRAY_SIZE(c3_pll_clk_regmaps); i++) + c3_pll_clk_regmaps[i]->map = regmap; + + for (clkid = 0; clkid < c3_pll_clks.num; clkid++) { + /* array might be sparse */ + if (!c3_pll_clks.hws[clkid]) + continue; + + ret = devm_clk_hw_register(dev, c3_pll_clks.hws[clkid]); + if (ret) { + dev_err(dev, "Clock registration failed\n"); + return ret; + } + } + + return devm_of_clk_add_hw_provider(dev, meson_clk_hw_get, + &c3_pll_clks); +} + +static const struct of_device_id c3_pll_clkc_match_table[] = { + { + .compatible = "amlogic,c3-pll-clkc", + }, + {} +}; +MODULE_DEVICE_TABLE(of, c3_pll_clkc_match_table); + +static struct platform_driver c3_pll_driver = { + .probe = aml_c3_pll_probe, + .driver = { + .name = "c3-pll-clkc", + .of_match_table = c3_pll_clkc_match_table, + }, +}; + +module_platform_driver(c3_pll_driver); +MODULE_AUTHOR("Chuan Liu <chuan.liu@amlogic.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/clk/meson/c3-pll.h b/drivers/clk/meson/c3-pll.h new file mode 100644 index 000000000000..92a08196a46f --- /dev/null +++ b/drivers/clk/meson/c3-pll.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */ +/* + * Copyright (c) 2023 Amlogic, inc. + * Author: Chuan Liu <chuan.liu@amlogic.com> + */ + +#ifndef __AML_C3_PLL_H__ +#define __AML_C3_PLL_H__ + +#define ANACTRL_FIXPLL_CTRL0 0x0040 +#define ANACTRL_FIXPLL_CTRL4 0x0050 +#define ANACTRL_GP0PLL_CTRL0 0x0080 +#define ANACTRL_GP0PLL_CTRL1 0x0084 +#define ANACTRL_GP0PLL_CTRL2 0x0088 +#define ANACTRL_GP0PLL_CTRL3 0x008c +#define ANACTRL_GP0PLL_CTRL4 0x0090 +#define ANACTRL_GP0PLL_CTRL5 0x0094 +#define ANACTRL_GP0PLL_CTRL6 0x0098 +#define ANACTRL_GP0PLL_STS 0x009c +#define ANACTRL_HIFIPLL_CTRL0 0x0100 +#define ANACTRL_HIFIPLL_CTRL1 0x0104 +#define ANACTRL_HIFIPLL_CTRL2 0x0108 +#define ANACTRL_HIFIPLL_CTRL3 0x010c +#define ANACTRL_HIFIPLL_CTRL4 0x0110 +#define ANACTRL_HIFIPLL_CTRL5 0x0114 +#define ANACTRL_HIFIPLL_CTRL6 0x0118 +#define ANACTRL_HIFIPLL_STS 0x011c +#define ANACTRL_MPLL_CTRL0 0x0180 +#define ANACTRL_MPLL_CTRL1 0x0184 +#define ANACTRL_MPLL_CTRL2 0x0188 +#define ANACTRL_MPLL_CTRL3 0x018c +#define ANACTRL_MPLL_CTRL4 0x0190 +#define ANACTRL_MPLL_STS 0x01a4 + +#endif /* __AML_C3_PLL_H__ */
Add the C3 PLL clock controller driver for the Amlogic C3 SoC family. Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com> --- drivers/clk/meson/Kconfig | 12 + drivers/clk/meson/Makefile | 1 + drivers/clk/meson/c3-pll.c | 510 +++++++++++++++++++++++++++++++++++++ drivers/clk/meson/c3-pll.h | 35 +++ 4 files changed, 558 insertions(+) create mode 100644 drivers/clk/meson/c3-pll.c create mode 100644 drivers/clk/meson/c3-pll.h