[PATCH v15 3/3] clk: aspeed: add AST2700 clock driver
Ryan Chen
ryan_chen at aspeedtech.com
Mon Oct 27 17:24:59 AEDT 2025
Hello Stephen,
Will this be accepted in clk-next?
Ryan Chen
> Subject: [PATCH v15 3/3] clk: aspeed: add AST2700 clock driver
>
> Add AST2700 clock controller driver and also use axiliary device framework
> register the reset controller driver.
> Due to clock and reset using the same register region.
>
> Signed-off-by: Ryan Chen <ryan_chen at aspeedtech.com>
> Reviewed-by: Brian Masney <bmasney at redhat.com>
> ---
> drivers/clk/Kconfig | 8 +
> drivers/clk/Makefile | 1 +
> drivers/clk/clk-ast2700.c | 1055
> +++++++++++++++++++++++++++++++++++++
> 3 files changed, 1064 insertions(+)
> create mode 100644 drivers/clk/clk-ast2700.c
>
> diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index
> 4d56475f94fc..b3a6eb374a53 100644
> --- a/drivers/clk/Kconfig
> +++ b/drivers/clk/Kconfig
> @@ -296,6 +296,14 @@ config COMMON_CLK_ASPEED
> The G4 and G5 series, including the ast2400 and ast2500, are
> supported
> by this driver.
>
> +config COMMON_CLK_AST2700
> + bool "Clock driver for AST2700 SoC"
> + depends on ARCH_ASPEED || COMPILE_TEST
> + help
> + This driver provides support for clock on AST2700 SoC.
> + The driver is responsible for managing the various clocks required
> + by the peripherals and cores within the AST2700.
> +
> config COMMON_CLK_S2MPS11
> tristate "Clock driver for S2MPS1X/S5M8767 MFD"
> depends on MFD_SEC_CORE || COMPILE_TEST diff --git
> a/drivers/clk/Makefile b/drivers/clk/Makefile index
> 18ed29cfdc11..0c47294715d3 100644
> --- a/drivers/clk/Makefile
> +++ b/drivers/clk/Makefile
> @@ -64,6 +64,7 @@ obj-$(CONFIG_COMMON_CLK_FSL_SAI) += clk-fsl-sai.o
> obj-$(CONFIG_COMMON_CLK_GEMINI) += clk-gemini.o
> obj-$(CONFIG_COMMON_CLK_ASPEED) += clk-aspeed.o
> obj-$(CONFIG_MACH_ASPEED_G6) += clk-ast2600.o
> +obj-$(CONFIG_COMMON_CLK_AST2700) += clk-ast2700.o
> obj-$(CONFIG_ARCH_HIGHBANK) += clk-highbank.o
> obj-$(CONFIG_CLK_HSDK) += clk-hsdk-pll.o
> obj-$(CONFIG_COMMON_CLK_K210) += clk-k210.o
> diff --git a/drivers/clk/clk-ast2700.c b/drivers/clk/clk-ast2700.c new file mode
> 100644 index 000000000000..bbb2b571eb72
> --- /dev/null
> +++ b/drivers/clk/clk-ast2700.c
> @@ -0,0 +1,1055 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2024 ASPEED Technology Inc.
> + * Author: Ryan Chen <ryan_chen at aspeedtech.com> */ #include
> +<linux/auxiliary_bus.h> #include <linux/bitfield.h> #include
> +<linux/clk-provider.h> #include <linux/io.h> #include
> +<linux/mod_devicetable.h> #include <linux/platform_device.h> #include
> +<linux/slab.h> #include <linux/units.h>
> +
> +#include <dt-bindings/clock/aspeed,ast2700-scu.h>
> +
> +/* SOC0 */
> +#define SCU0_HWSTRAP1 0x010
> +#define SCU0_CLK_STOP 0x240
> +#define SCU0_CLK_SEL1 0x280
> +#define SCU0_CLK_SEL2 0x284
> +#define GET_USB_REFCLK_DIV(x) ((GENMASK(23, 20) & (x)) >> 20)
> +#define UART_DIV13_EN BIT(30)
> +#define SCU0_HPLL_PARAM 0x300
> +#define SCU0_DPLL_PARAM 0x308
> +#define SCU0_MPLL_PARAM 0x310
> +#define SCU0_D0CLK_PARAM 0x320
> +#define SCU0_D1CLK_PARAM 0x330
> +#define SCU0_CRT0CLK_PARAM 0x340
> +#define SCU0_CRT1CLK_PARAM 0x350
> +#define SCU0_MPHYCLK_PARAM 0x360
> +
> +/* SOC1 */
> +#define SCU1_REVISION_ID 0x0
> +#define REVISION_ID GENMASK(23, 16)
> +#define SCU1_CLK_STOP 0x240
> +#define SCU1_CLK_STOP2 0x260
> +#define SCU1_CLK_SEL1 0x280
> +#define SCU1_CLK_SEL2 0x284
> +#define SCU1_CLK_I3C_DIV_MASK GENMASK(25, 23)
> +#define SCU1_CLK_I3C_DIV(n) ((n) - 1)
> +#define UXCLK_MASK GENMASK(1, 0)
> +#define HUXCLK_MASK GENMASK(4, 3)
> +#define SCU1_HPLL_PARAM 0x300
> +#define SCU1_APLL_PARAM 0x310
> +#define SCU1_DPLL_PARAM 0x320
> +#define SCU1_UXCLK_CTRL 0x330
> +#define SCU1_HUXCLK_CTRL 0x334
> +#define SCU1_MAC12_CLK_DLY 0x390
> +#define SCU1_MAC12_CLK_DLY_100M 0x394
> +#define SCU1_MAC12_CLK_DLY_10M 0x398
> +
> +enum ast2700_clk_type {
> + CLK_MUX,
> + CLK_PLL,
> + CLK_HPLL,
> + CLK_GATE,
> + CLK_MISC,
> + CLK_FIXED,
> + CLK_DIVIDER,
> + CLK_UART_PLL,
> + CLK_GATE_ASPEED,
> + CLK_FIXED_FACTOR,
> + CLK_FIXED_DISPLAY,
> +};
> +
> +struct ast2700_clk_fixed_factor_data {
> + unsigned int mult;
> + unsigned int div;
> + int parent_id;
> +};
> +
> +struct ast2700_clk_gate_data {
> + int parent_id;
> + u32 flags;
> + u32 reg;
> + u8 bit;
> +};
> +
> +struct ast2700_clk_mux_data {
> + const struct clk_hw **parent_hws;
> + const unsigned int *parent_ids;
> + unsigned int num_parents;
> + u8 bit_shift;
> + u8 bit_width;
> + u32 reg;
> +};
> +
> +struct ast2700_clk_div_data {
> + const struct clk_div_table *div_table;
> + unsigned int parent_id;
> + u8 bit_shift;
> + u8 bit_width;
> + u32 reg;
> +};
> +
> +struct ast2700_clk_pll_data {
> + unsigned int parent_id;
> + u32 reg;
> +};
> +
> +struct ast2700_clk_fixed_rate_data {
> + unsigned long fixed_rate;
> +};
> +
> +struct ast2700_clk_display_fixed_data {
> + u32 reg;
> +};
> +
> +struct ast2700_clk_info {
> + const char *name;
> + u32 id;
> + u32 reg;
> + u32 type;
> + union {
> + struct ast2700_clk_fixed_factor_data factor;
> + struct ast2700_clk_fixed_rate_data rate;
> + struct ast2700_clk_display_fixed_data display_rate;
> + struct ast2700_clk_gate_data gate;
> + struct ast2700_clk_div_data div;
> + struct ast2700_clk_pll_data pll;
> + struct ast2700_clk_mux_data mux;
> + } data;
> +};
> +
> +struct ast2700_clk_data {
> + const struct ast2700_clk_info *clk_info;
> + unsigned int nr_clks;
> + const int scu;
> +};
> +
> +struct ast2700_clk_ctrl {
> + const struct ast2700_clk_data *clk_data;
> + struct device *dev;
> + void __iomem *base;
> + spinlock_t lock; /* clk lock */
> +};
> +
> +static const struct clk_div_table ast2700_rgmii_div_table[] = {
> + { 0x0, 4 },
> + { 0x1, 4 },
> + { 0x2, 6 },
> + { 0x3, 8 },
> + { 0x4, 10 },
> + { 0x5, 12 },
> + { 0x6, 14 },
> + { 0x7, 16 },
> + { 0 }
> +};
> +
> +static const struct clk_div_table ast2700_rmii_div_table[] = {
> + { 0x0, 8 },
> + { 0x1, 8 },
> + { 0x2, 12 },
> + { 0x3, 16 },
> + { 0x4, 20 },
> + { 0x5, 24 },
> + { 0x6, 28 },
> + { 0x7, 32 },
> + { 0 }
> +};
> +
> +static const struct clk_div_table ast2700_clk_div_table[] = {
> + { 0x0, 2 },
> + { 0x1, 2 },
> + { 0x2, 3 },
> + { 0x3, 4 },
> + { 0x4, 5 },
> + { 0x5, 6 },
> + { 0x6, 7 },
> + { 0x7, 8 },
> + { 0 }
> +};
> +
> +static const struct clk_div_table ast2700_clk_div_table2[] = {
> + { 0x0, 2 },
> + { 0x1, 4 },
> + { 0x2, 6 },
> + { 0x3, 8 },
> + { 0x4, 10 },
> + { 0x5, 12 },
> + { 0x6, 14 },
> + { 0x7, 16 },
> + { 0 }
> +};
> +
> +static const struct clk_div_table ast2700_hclk_div_table[] = {
> + { 0x0, 6 },
> + { 0x1, 5 },
> + { 0x2, 4 },
> + { 0x3, 7 },
> + { 0 }
> +};
> +
> +static const struct clk_div_table ast2700_clk_uart_div_table[] = {
> + { 0x0, 1 },
> + { 0x1, 13 },
> + { 0 }
> +};
> +
> +/* soc 0 */
> +static const unsigned int psp_parent_ids[] = {
> + SCU0_CLK_MPLL,
> + SCU0_CLK_HPLL,
> + SCU0_CLK_HPLL,
> + SCU0_CLK_HPLL,
> + SCU0_CLK_MPLL_DIV2,
> + SCU0_CLK_HPLL_DIV2,
> + SCU0_CLK_HPLL,
> + SCU0_CLK_HPLL
> +};
> +
> +static const struct clk_hw *psp_parent_hws[ARRAY_SIZE(psp_parent_ids)];
> +
> +static const unsigned int hclk_parent_ids[] = {
> + SCU0_CLK_HPLL,
> + SCU0_CLK_MPLL
> +};
> +
> +static const struct clk_hw
> +*hclk_parent_hws[ARRAY_SIZE(hclk_parent_ids)];
> +
> +static const unsigned int emmc_parent_ids[] = {
> + SCU0_CLK_MPLL_DIV4,
> + SCU0_CLK_HPLL_DIV4
> +};
> +
> +static const struct clk_hw
> +*emmc_parent_hws[ARRAY_SIZE(emmc_parent_ids)];
> +
> +static const unsigned int mphy_parent_ids[] = {
> + SCU0_CLK_MPLL,
> + SCU0_CLK_HPLL,
> + SCU0_CLK_DPLL,
> + SCU0_CLK_192M
> +};
> +
> +static const struct clk_hw
> +*mphy_parent_hws[ARRAY_SIZE(mphy_parent_ids)];
> +
> +static const unsigned int u2phy_parent_ids[] = {
> + SCU0_CLK_MPLL,
> + SCU0_CLK_HPLL
> +};
> +
> +static const struct clk_hw
> +*u2phy_parent_hws[ARRAY_SIZE(u2phy_parent_ids)];
> +
> +static const unsigned int uart_parent_ids[] = {
> + SCU0_CLK_24M,
> + SCU0_CLK_192M
> +};
> +
> +static const struct clk_hw
> +*uart_parent_hws[ARRAY_SIZE(uart_parent_ids)];
> +
> +/* soc 1 */
> +static const unsigned int uartx_parent_ids[] = {
> + SCU1_CLK_UARTX,
> + SCU1_CLK_HUARTX
> +};
> +
> +static const struct clk_hw
> +*uartx_parent_hws[ARRAY_SIZE(uartx_parent_ids)];
> +
> +static const unsigned int uxclk_parent_ids[] = {
> + SCU1_CLK_APLL_DIV4,
> + SCU1_CLK_APLL_DIV2,
> + SCU1_CLK_APLL,
> + SCU1_CLK_HPLL
> +};
> +
> +static const struct clk_hw
> +*uxclk_parent_hws[ARRAY_SIZE(uxclk_parent_ids)];
> +
> +static const unsigned int sdclk_parent_ids[] = {
> + SCU1_CLK_HPLL,
> + SCU1_CLK_APLL
> +};
> +
> +static const struct clk_hw
> +*sdclk_parent_hws[ARRAY_SIZE(sdclk_parent_ids)];
> +
> +#define FIXED_CLK(_id, _name, _rate) \
> + { \
> + .id = _id, \
> + .type = CLK_FIXED, \
> + .name = _name, \
> + .data = { .rate = { .fixed_rate = _rate, } }, \
> + }
> +
> +#define FIXED_DISPLAY_CLK(_id, _name, _reg) \
> + { \
> + .id = _id, \
> + .type = CLK_FIXED_DISPLAY, \
> + .name = _name, \
> + .data = { .display_rate = { .reg = _reg } }, \
> + }
> +
> +#define PLL_CLK(_id, _type, _name, _parent_id, _reg) \
> + { \
> + .id = _id, \
> + .type = _type, \
> + .name = _name, \
> + .data = { .pll = { \
> + .parent_id = _parent_id, \
> + .reg = _reg, \
> + } }, \
> + }
> +
> +#define MUX_CLK(_id, _name, _parent_ids, _num_parents, _parent_hws,
> _reg, _shift, _width) \
> + { \
> + .id = _id, \
> + .type = CLK_MUX, \
> + .name = _name, \
> + .data = { \
> + .mux = { \
> + .parent_ids = _parent_ids, \
> + .parent_hws = _parent_hws, \
> + .num_parents = _num_parents, \
> + .reg = (_reg), \
> + .bit_shift = _shift, \
> + .bit_width = _width, \
> + }, \
> + }, \
> + }
> +
> +#define DIVIDER_CLK(_id, _name, _parent_id, _reg, _shift, _width, _div_table)
> \
> + { \
> + .id = _id, \
> + .type = CLK_DIVIDER, \
> + .name = _name, \
> + .data = { \
> + .div = { \
> + .parent_id = _parent_id, \
> + .reg = _reg, \
> + .bit_shift = _shift, \
> + .bit_width = _width, \
> + .div_table = _div_table, \
> + }, \
> + }, \
> + }
> +
> +#define FIXED_FACTOR_CLK(_id, _name, _parent_id, _mult, _div) \
> + { \
> + .id = _id, \
> + .type = CLK_FIXED_FACTOR, \
> + .name = _name, \
> + .data = { .factor = { .parent_id = _parent_id, .mult = _mult, .div =
> _div, } }, \
> + }
> +
> +#define GATE_CLK(_id, _type, _name, _parent_id, _reg, _bit, _flags) \
> + { \
> + .id = _id, \
> + .type = _type, \
> + .name = _name, \
> + .data = { \
> + .gate = { \
> + .parent_id = _parent_id, \
> + .reg = _reg, \
> + .bit = _bit, \
> + .flags = _flags, \
> + }, \
> + }, \
> + }
> +
> +static const struct ast2700_clk_info ast2700_scu0_clk_info[] __initconst = {
> + FIXED_CLK(SCU0_CLKIN, "soc0-clkin", 25 * HZ_PER_MHZ),
> + FIXED_CLK(SCU0_CLK_24M, "soc0-clk24Mhz", 24 * HZ_PER_MHZ),
> + FIXED_CLK(SCU0_CLK_192M, "soc0-clk192Mhz", 192 * HZ_PER_MHZ),
> + FIXED_CLK(SCU0_CLK_U2PHY_CLK12M, "u2phy_clk12m", 12 *
> HZ_PER_MHZ),
> + FIXED_DISPLAY_CLK(SCU0_CLK_D0, "d0clk", SCU0_D0CLK_PARAM),
> + FIXED_DISPLAY_CLK(SCU0_CLK_D1, "d1clk", SCU0_D1CLK_PARAM),
> + FIXED_DISPLAY_CLK(SCU0_CLK_CRT0, "crt0clk", SCU0_CRT0CLK_PARAM),
> + FIXED_DISPLAY_CLK(SCU0_CLK_CRT1, "crt1clk", SCU0_CRT1CLK_PARAM),
> + PLL_CLK(SCU0_CLK_HPLL, CLK_HPLL, "soc0-hpll", SCU0_CLKIN,
> SCU0_HPLL_PARAM),
> + PLL_CLK(SCU0_CLK_DPLL, CLK_PLL, "soc0-dpll", SCU0_CLKIN,
> SCU0_DPLL_PARAM),
> + PLL_CLK(SCU0_CLK_MPLL, CLK_PLL, "soc0-mpll", SCU0_CLKIN,
> SCU0_MPLL_PARAM),
> + FIXED_FACTOR_CLK(SCU0_CLK_HPLL_DIV2, "soc0-hpll_div2",
> SCU0_CLK_HPLL, 1, 2),
> + FIXED_FACTOR_CLK(SCU0_CLK_HPLL_DIV4, "soc0-hpll_div4",
> SCU0_CLK_HPLL, 1, 4),
> + FIXED_FACTOR_CLK(SCU0_CLK_MPLL_DIV2, "soc0-mpll_div2",
> SCU0_CLK_MPLL, 1, 2),
> + FIXED_FACTOR_CLK(SCU0_CLK_MPLL_DIV4, "soc0-mpll_div4",
> SCU0_CLK_MPLL, 1, 4),
> + FIXED_FACTOR_CLK(SCU0_CLK_MPLL_DIV8, "soc0-mpll_div8",
> SCU0_CLK_MPLL, 1, 8),
> + FIXED_FACTOR_CLK(SCU0_CLK_AXI1, "axi1clk", SCU0_CLK_MPLL, 1, 4),
> + MUX_CLK(SCU0_CLK_PSP, "pspclk", psp_parent_ids,
> ARRAY_SIZE(psp_parent_ids),
> + psp_parent_hws, SCU0_HWSTRAP1, 2, 3),
> + FIXED_FACTOR_CLK(SCU0_CLK_AXI0, "axi0clk", SCU0_CLK_PSP, 1, 2),
> + MUX_CLK(SCU0_CLK_AHBMUX, "soc0-ahbmux", hclk_parent_ids,
> ARRAY_SIZE(hclk_parent_ids),
> + hclk_parent_hws, SCU0_HWSTRAP1, 7, 1),
> + MUX_CLK(SCU0_CLK_EMMCMUX, "emmcsrc-mux", emmc_parent_ids,
> ARRAY_SIZE(emmc_parent_ids),
> + emmc_parent_hws, SCU0_CLK_SEL1, 11, 1),
> + MUX_CLK(SCU0_CLK_MPHYSRC, "mphysrc", mphy_parent_ids,
> ARRAY_SIZE(mphy_parent_ids),
> + mphy_parent_hws, SCU0_CLK_SEL2, 18, 2),
> + MUX_CLK(SCU0_CLK_U2PHY_REFCLKSRC, "u2phy_refclksrc",
> u2phy_parent_ids,
> + ARRAY_SIZE(u2phy_parent_ids), u2phy_parent_hws, SCU0_CLK_SEL2,
> 23, 1),
> + MUX_CLK(SCU0_CLK_UART, "soc0-uartclk", uart_parent_ids,
> ARRAY_SIZE(uart_parent_ids),
> + uart_parent_hws, SCU0_CLK_SEL2, 14, 1),
> + PLL_CLK(SCU0_CLK_MPHY, CLK_MISC, "mphyclk", SCU0_CLK_MPHYSRC,
> SCU0_MPHYCLK_PARAM),
> + PLL_CLK(SCU0_CLK_U2PHY_REFCLK, CLK_MISC, "u2phy_refclk",
> SCU0_CLK_U2PHY_REFCLKSRC,
> + SCU0_CLK_SEL2),
> + DIVIDER_CLK(SCU0_CLK_AHB, "soc0-ahb", SCU0_CLK_AHBMUX,
> + SCU0_HWSTRAP1, 5, 2, ast2700_hclk_div_table),
> + DIVIDER_CLK(SCU0_CLK_EMMC, "emmcclk", SCU0_CLK_EMMCMUX,
> + SCU0_CLK_SEL1, 12, 3, ast2700_clk_div_table2),
> + DIVIDER_CLK(SCU0_CLK_APB, "soc0-apb", SCU0_CLK_AXI0,
> + SCU0_CLK_SEL1, 23, 3, ast2700_clk_div_table2),
> + DIVIDER_CLK(SCU0_CLK_HPLL_DIV_AHB, "soc0-hpll-ahb",
> SCU0_CLK_HPLL,
> + SCU0_HWSTRAP1, 5, 2, ast2700_hclk_div_table),
> + DIVIDER_CLK(SCU0_CLK_MPLL_DIV_AHB, "soc0-mpll-ahb",
> SCU0_CLK_MPLL,
> + SCU0_HWSTRAP1, 5, 2, ast2700_hclk_div_table),
> + DIVIDER_CLK(SCU0_CLK_UART4, "uart4clk", SCU0_CLK_UART,
> + SCU0_CLK_SEL2, 30, 1, ast2700_clk_uart_div_table),
> + GATE_CLK(SCU0_CLK_GATE_MCLK, CLK_GATE_ASPEED, "mclk-gate",
> SCU0_CLK_MPLL,
> + SCU0_CLK_STOP, 0, CLK_IS_CRITICAL),
> + GATE_CLK(SCU0_CLK_GATE_ECLK, CLK_GATE_ASPEED, "eclk-gate", -1,
> SCU0_CLK_STOP, 1, 0),
> + GATE_CLK(SCU0_CLK_GATE_2DCLK, CLK_GATE_ASPEED, "gclk-gate", -1,
> SCU0_CLK_STOP, 2, 0),
> + GATE_CLK(SCU0_CLK_GATE_VCLK, CLK_GATE_ASPEED, "vclk-gate", -1,
> SCU0_CLK_STOP, 3, 0),
> + GATE_CLK(SCU0_CLK_GATE_BCLK, CLK_GATE_ASPEED, "bclk-gate", -1,
> + SCU0_CLK_STOP, 4, CLK_IS_CRITICAL),
> + GATE_CLK(SCU0_CLK_GATE_VGA0CLK, CLK_GATE_ASPEED,
> "vga0clk-gate", -1,
> + SCU0_CLK_STOP, 5, CLK_IS_CRITICAL),
> + GATE_CLK(SCU0_CLK_GATE_REFCLK, CLK_GATE_ASPEED,
> "soc0-refclk-gate", SCU0_CLKIN,
> + SCU0_CLK_STOP, 6, CLK_IS_CRITICAL),
> + GATE_CLK(SCU0_CLK_GATE_PORTBUSB2CLK, CLK_GATE_ASPEED,
> "portb-usb2clk-gate", -1,
> + SCU0_CLK_STOP, 7, 0),
> + GATE_CLK(SCU0_CLK_GATE_UHCICLK, CLK_GATE_ASPEED, "uhciclk-gate",
> -1, SCU0_CLK_STOP, 9, 0),
> + GATE_CLK(SCU0_CLK_GATE_VGA1CLK, CLK_GATE_ASPEED, "vga1clk-gate",
> -1,
> + SCU0_CLK_STOP, 10, CLK_IS_CRITICAL),
> + GATE_CLK(SCU0_CLK_GATE_DDRPHYCLK, CLK_GATE_ASPEED,
> "ddrphy-gate", -1,
> + SCU0_CLK_STOP, 11, CLK_IS_CRITICAL),
> + GATE_CLK(SCU0_CLK_GATE_E2M0CLK, CLK_GATE_ASPEED,
> "e2m0clk-gate", -1,
> + SCU0_CLK_STOP, 12, CLK_IS_CRITICAL),
> + GATE_CLK(SCU0_CLK_GATE_HACCLK, CLK_GATE_ASPEED, "hacclk-gate",
> -1, SCU0_CLK_STOP, 13, 0),
> + GATE_CLK(SCU0_CLK_GATE_PORTAUSB2CLK, CLK_GATE_ASPEED,
> "porta-usb2clk-gate", -1,
> + SCU0_CLK_STOP, 14, 0),
> + GATE_CLK(SCU0_CLK_GATE_UART4CLK, CLK_GATE_ASPEED,
> "uart4clk-gate", SCU0_CLK_UART4,
> + SCU0_CLK_STOP, 15, CLK_IS_CRITICAL),
> + GATE_CLK(SCU0_CLK_GATE_SLICLK, CLK_GATE_ASPEED, "soc0-sliclk-gate",
> -1,
> + SCU0_CLK_STOP, 16, CLK_IS_CRITICAL),
> + GATE_CLK(SCU0_CLK_GATE_DACCLK, CLK_GATE_ASPEED, "dacclk-gate",
> -1,
> + SCU0_CLK_STOP, 17, CLK_IS_CRITICAL),
> + GATE_CLK(SCU0_CLK_GATE_DP, CLK_GATE_ASPEED, "dpclk-gate", -1,
> + SCU0_CLK_STOP, 18, CLK_IS_CRITICAL),
> + GATE_CLK(SCU0_CLK_GATE_E2M1CLK, CLK_GATE_ASPEED,
> "e2m1clk-gate", -1,
> + SCU0_CLK_STOP, 19, CLK_IS_CRITICAL),
> + GATE_CLK(SCU0_CLK_GATE_CRT0CLK, CLK_GATE_ASPEED, "crt0clk-gate",
> -1,
> + SCU0_CLK_STOP, 20, 0),
> + GATE_CLK(SCU0_CLK_GATE_CRT1CLK, CLK_GATE_ASPEED, "crt1clk-gate",
> -1,
> + SCU0_CLK_STOP, 21, 0),
> + GATE_CLK(SCU0_CLK_GATE_ECDSACLK, CLK_GATE_ASPEED, "eccclk-gate",
> -1,
> + SCU0_CLK_STOP, 23, 0),
> + GATE_CLK(SCU0_CLK_GATE_RSACLK, CLK_GATE_ASPEED, "rsaclk-gate", -1,
> + SCU0_CLK_STOP, 24, 0),
> + GATE_CLK(SCU0_CLK_GATE_RVAS0CLK, CLK_GATE_ASPEED,
> "rvas0clk-gate", -1,
> + SCU0_CLK_STOP, 25, 0),
> + GATE_CLK(SCU0_CLK_GATE_UFSCLK, CLK_GATE_ASPEED, "ufsclk-gate", -1,
> + SCU0_CLK_STOP, 26, 0),
> + GATE_CLK(SCU0_CLK_GATE_EMMCCLK, CLK_GATE_ASPEED,
> "emmcclk-gate", SCU0_CLK_EMMC,
> + SCU0_CLK_STOP, 27, 0),
> + GATE_CLK(SCU0_CLK_GATE_RVAS1CLK, CLK_GATE_ASPEED,
> "rvas1clk-gate", -1,
> + SCU0_CLK_STOP, 28, 0),
> +};
> +
> +static const struct ast2700_clk_info ast2700_scu1_clk_info[] __initconst = {
> + FIXED_CLK(SCU1_CLKIN, "soc1-clkin", 25 * HZ_PER_MHZ),
> + PLL_CLK(SCU1_CLK_HPLL, CLK_PLL, "soc1-hpll", SCU1_CLKIN,
> SCU1_HPLL_PARAM),
> + PLL_CLK(SCU1_CLK_APLL, CLK_PLL, "soc1-apll", SCU1_CLKIN,
> SCU1_APLL_PARAM),
> + PLL_CLK(SCU1_CLK_DPLL, CLK_PLL, "soc1-dpll", SCU1_CLKIN,
> SCU1_DPLL_PARAM),
> + FIXED_FACTOR_CLK(SCU1_CLK_APLL_DIV2, "soc1-apll_div2",
> SCU1_CLK_APLL, 1, 2),
> + FIXED_FACTOR_CLK(SCU1_CLK_APLL_DIV4, "soc1-apll_div4",
> SCU1_CLK_APLL, 1, 4),
> + FIXED_FACTOR_CLK(SCU1_CLK_CAN, "canclk", SCU1_CLK_APLL, 1, 10),
> + DIVIDER_CLK(SCU1_CLK_APB, "soc1-apb", SCU1_CLK_HPLL,
> + SCU1_CLK_SEL1, 18, 3, ast2700_clk_div_table2),
> + DIVIDER_CLK(SCU1_CLK_RMII, "rmii", SCU1_CLK_HPLL,
> + SCU1_CLK_SEL1, 21, 3, ast2700_rmii_div_table),
> + DIVIDER_CLK(SCU1_CLK_RGMII, "rgmii", SCU1_CLK_HPLL,
> + SCU1_CLK_SEL1, 25, 3, ast2700_rgmii_div_table),
> + DIVIDER_CLK(SCU1_CLK_MACHCLK, "machclk", SCU1_CLK_HPLL,
> + SCU1_CLK_SEL1, 29, 3, ast2700_clk_div_table),
> + DIVIDER_CLK(SCU1_CLK_APLL_DIVN, "soc1-apll_divn",
> + SCU1_CLK_APLL, SCU1_CLK_SEL2, 8, 3, ast2700_clk_div_table),
> + DIVIDER_CLK(SCU1_CLK_AHB, "soc1-ahb", SCU1_CLK_HPLL,
> + SCU1_CLK_SEL2, 20, 3, ast2700_clk_div_table),
> + DIVIDER_CLK(SCU1_CLK_I3C, "soc1-i3c", SCU1_CLK_HPLL,
> + SCU1_CLK_SEL2, 23, 3, ast2700_clk_div_table),
> + MUX_CLK(SCU1_CLK_SDMUX, "sdclk-mux", sdclk_parent_ids,
> ARRAY_SIZE(sdclk_parent_ids),
> + sdclk_parent_hws, SCU1_CLK_SEL1, 13, 1),
> + MUX_CLK(SCU1_CLK_UXCLK, "uxclk", uxclk_parent_ids,
> ARRAY_SIZE(uxclk_parent_ids),
> + uxclk_parent_hws, SCU1_CLK_SEL2, 0, 2),
> + MUX_CLK(SCU1_CLK_HUXCLK, "huxclk", uxclk_parent_ids,
> ARRAY_SIZE(uxclk_parent_ids),
> + uxclk_parent_hws, SCU1_CLK_SEL2, 3, 2),
> + DIVIDER_CLK(SCU1_CLK_SDCLK, "sdclk", SCU1_CLK_SDMUX,
> + SCU1_CLK_SEL1, 14, 3, ast2700_clk_div_table),
> + PLL_CLK(SCU1_CLK_UARTX, CLK_UART_PLL, "uartxclk", SCU1_CLK_UXCLK,
> SCU1_UXCLK_CTRL),
> + PLL_CLK(SCU1_CLK_HUARTX, CLK_UART_PLL, "huartxclk",
> SCU1_CLK_HUXCLK, SCU1_HUXCLK_CTRL),
> + MUX_CLK(SCU1_CLK_UART0, "uart0clk", uartx_parent_ids,
> ARRAY_SIZE(uartx_parent_ids),
> + uartx_parent_hws, SCU1_CLK_SEL1, 0, 1),
> + MUX_CLK(SCU1_CLK_UART1, "uart1clk", uartx_parent_ids,
> ARRAY_SIZE(uartx_parent_ids),
> + uartx_parent_hws, SCU1_CLK_SEL1, 1, 1),
> + MUX_CLK(SCU1_CLK_UART2, "uart2clk", uartx_parent_ids,
> ARRAY_SIZE(uartx_parent_ids),
> + uartx_parent_hws, SCU1_CLK_SEL1, 2, 1),
> + MUX_CLK(SCU1_CLK_UART3, "uart3clk", uartx_parent_ids,
> ARRAY_SIZE(uartx_parent_ids),
> + uartx_parent_hws, SCU1_CLK_SEL1, 3, 1),
> + MUX_CLK(SCU1_CLK_UART5, "uart5clk", uartx_parent_ids,
> ARRAY_SIZE(uartx_parent_ids),
> + uartx_parent_hws, SCU1_CLK_SEL1, 5, 1),
> + MUX_CLK(SCU1_CLK_UART6, "uart6clk", uartx_parent_ids,
> ARRAY_SIZE(uartx_parent_ids),
> + uartx_parent_hws, SCU1_CLK_SEL1, 6, 1),
> + MUX_CLK(SCU1_CLK_UART7, "uart7clk", uartx_parent_ids,
> ARRAY_SIZE(uartx_parent_ids),
> + uartx_parent_hws, SCU1_CLK_SEL1, 7, 1),
> + MUX_CLK(SCU1_CLK_UART8, "uart8clk", uartx_parent_ids,
> ARRAY_SIZE(uartx_parent_ids),
> + uartx_parent_hws, SCU1_CLK_SEL1, 8, 1),
> + MUX_CLK(SCU1_CLK_UART9, "uart9clk", uartx_parent_ids,
> ARRAY_SIZE(uartx_parent_ids),
> + uartx_parent_hws, SCU1_CLK_SEL1, 9, 1),
> + MUX_CLK(SCU1_CLK_UART10, "uart10clk", uartx_parent_ids,
> ARRAY_SIZE(uartx_parent_ids),
> + uartx_parent_hws, SCU1_CLK_SEL1, 10, 1),
> + MUX_CLK(SCU1_CLK_UART11, "uart11clk", uartx_parent_ids,
> ARRAY_SIZE(uartx_parent_ids),
> + uartx_parent_hws, SCU1_CLK_SEL1, 11, 1),
> + MUX_CLK(SCU1_CLK_UART12, "uart12clk", uartx_parent_ids,
> ARRAY_SIZE(uartx_parent_ids),
> + uartx_parent_hws, SCU1_CLK_SEL1, 12, 1),
> + FIXED_FACTOR_CLK(SCU1_CLK_UART13, "uart13clk", SCU1_CLK_HUARTX,
> 1, 1),
> + FIXED_FACTOR_CLK(SCU1_CLK_UART14, "uart14clk", SCU1_CLK_HUARTX,
> 1, 1),
> + GATE_CLK(SCU1_CLK_MAC0RCLK, CLK_GATE, "mac0rclk-gate",
> SCU1_CLK_RMII,
> + SCU1_MAC12_CLK_DLY, 29, 0),
> + GATE_CLK(SCU1_CLK_MAC1RCLK, CLK_GATE, "mac1rclk-gate",
> SCU1_CLK_RMII,
> + SCU1_MAC12_CLK_DLY, 30, 0),
> + GATE_CLK(SCU1_CLK_GATE_LCLK0, CLK_GATE_ASPEED, "lclk0-gate", -1,
> + SCU1_CLK_STOP, 0, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_LCLK1, CLK_GATE_ASPEED, "lclk1-gate", -1,
> + SCU1_CLK_STOP, 1, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_ESPI0CLK, CLK_GATE_ASPEED,
> "espi0clk-gate", -1,
> + SCU1_CLK_STOP, 2, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_ESPI1CLK, CLK_GATE_ASPEED,
> "espi1clk-gate", -1,
> + SCU1_CLK_STOP, 3, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_SDCLK, CLK_GATE_ASPEED, "sdclk-gate",
> SCU1_CLK_SDCLK,
> + SCU1_CLK_STOP, 4, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_IPEREFCLK, CLK_GATE_ASPEED,
> "soc1-iperefclk-gate", -1,
> + SCU1_CLK_STOP, 5, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_REFCLK, CLK_GATE_ASPEED,
> "soc1-refclk-gate", -1,
> + SCU1_CLK_STOP, 6, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_LPCHCLK, CLK_GATE_ASPEED, "lpchclk-gate",
> -1,
> + SCU1_CLK_STOP, 7, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_MAC0CLK, CLK_GATE_ASPEED,
> "mac0clk-gate", -1,
> + SCU1_CLK_STOP, 8, 0),
> + GATE_CLK(SCU1_CLK_GATE_MAC1CLK, CLK_GATE_ASPEED,
> "mac1clk-gate", -1,
> + SCU1_CLK_STOP, 9, 0),
> + GATE_CLK(SCU1_CLK_GATE_MAC2CLK, CLK_GATE_ASPEED,
> "mac2clk-gate", -1,
> + SCU1_CLK_STOP, 10, 0),
> + GATE_CLK(SCU1_CLK_GATE_UART0CLK, CLK_GATE_ASPEED,
> "uart0clk-gate", SCU1_CLK_UART0,
> + SCU1_CLK_STOP, 11, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_UART1CLK, CLK_GATE_ASPEED,
> "uart1clk-gate", SCU1_CLK_UART1,
> + SCU1_CLK_STOP, 12, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_UART2CLK, CLK_GATE_ASPEED,
> "uart2clk-gate", SCU1_CLK_UART2,
> + SCU1_CLK_STOP, 13, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_UART3CLK, CLK_GATE_ASPEED,
> "uart3clk-gate", SCU1_CLK_UART3,
> + SCU1_CLK_STOP, 14, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_I2CCLK, CLK_GATE_ASPEED, "i2cclk-gate", -1,
> SCU1_CLK_STOP, 15, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C0CLK, CLK_GATE_ASPEED, "i3c0clk-gate",
> SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 16, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C1CLK, CLK_GATE_ASPEED, "i3c1clk-gate",
> SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 17, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C2CLK, CLK_GATE_ASPEED, "i3c2clk-gate",
> SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 18, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C3CLK, CLK_GATE_ASPEED, "i3c3clk-gate",
> SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 19, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C4CLK, CLK_GATE_ASPEED, "i3c4clk-gate",
> SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 20, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C5CLK, CLK_GATE_ASPEED, "i3c5clk-gate",
> SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 21, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C6CLK, CLK_GATE_ASPEED, "i3c6clk-gate",
> SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 22, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C7CLK, CLK_GATE_ASPEED, "i3c7clk-gate",
> SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 23, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C8CLK, CLK_GATE_ASPEED, "i3c8clk-gate",
> SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 24, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C9CLK, CLK_GATE_ASPEED, "i3c9clk-gate",
> SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 25, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C10CLK, CLK_GATE_ASPEED,
> "i3c10clk-gate", SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 26, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C11CLK, CLK_GATE_ASPEED,
> "i3c11clk-gate", SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 27, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C12CLK, CLK_GATE_ASPEED,
> "i3c12clk-gate", SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 28, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C13CLK, CLK_GATE_ASPEED,
> "i3c13clk-gate", SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 29, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C14CLK, CLK_GATE_ASPEED,
> "i3c14clk-gate", SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 30, 0),
> + GATE_CLK(SCU1_CLK_GATE_I3C15CLK, CLK_GATE_ASPEED,
> "i3c15clk-gate", SCU1_CLK_I3C,
> + SCU1_CLK_STOP, 31, 0),
> + GATE_CLK(SCU1_CLK_GATE_UART5CLK, CLK_GATE_ASPEED,
> "uart5clk-gate", SCU1_CLK_UART5,
> + SCU1_CLK_STOP2, 0, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_UART6CLK, CLK_GATE_ASPEED,
> "uart6clk-gate", SCU1_CLK_UART6,
> + SCU1_CLK_STOP2, 1, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_UART7CLK, CLK_GATE_ASPEED,
> "uart7clk-gate", SCU1_CLK_UART7,
> + SCU1_CLK_STOP2, 2, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_UART8CLK, CLK_GATE_ASPEED,
> "uart8clk-gate", SCU1_CLK_UART8,
> + SCU1_CLK_STOP2, 3, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_UART9CLK, CLK_GATE_ASPEED,
> "uart9clk-gate", SCU1_CLK_UART9,
> + SCU1_CLK_STOP2, 4, 0),
> + GATE_CLK(SCU1_CLK_GATE_UART10CLK, CLK_GATE_ASPEED,
> "uart10clk-gate", SCU1_CLK_UART10,
> + SCU1_CLK_STOP2, 5, 0),
> + GATE_CLK(SCU1_CLK_GATE_UART11CLK, CLK_GATE_ASPEED,
> "uart11clk-gate", SCU1_CLK_UART11,
> + SCU1_CLK_STOP2, 6, 0),
> + GATE_CLK(SCU1_CLK_GATE_UART12CLK, CLK_GATE_ASPEED,
> "uart12clk-gate", SCU1_CLK_UART12,
> + SCU1_CLK_STOP2, 7, 0),
> + GATE_CLK(SCU1_CLK_GATE_FSICLK, CLK_GATE_ASPEED, "fsiclk-gate", -1,
> SCU1_CLK_STOP2, 8, 0),
> + GATE_CLK(SCU1_CLK_GATE_LTPIPHYCLK, CLK_GATE_ASPEED,
> "ltpiphyclk-gate", -1,
> + SCU1_CLK_STOP2, 9, 0),
> + GATE_CLK(SCU1_CLK_GATE_LTPICLK, CLK_GATE_ASPEED, "ltpiclk-gate",
> -1,
> + SCU1_CLK_STOP2, 10, 0),
> + GATE_CLK(SCU1_CLK_GATE_VGALCLK, CLK_GATE_ASPEED, "vgalclk-gate",
> -1,
> + SCU1_CLK_STOP2, 11, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_UHCICLK, CLK_GATE_ASPEED,
> "usbuartclk-gate", -1,
> + SCU1_CLK_STOP2, 12, 0),
> + GATE_CLK(SCU1_CLK_GATE_CANCLK, CLK_GATE_ASPEED, "canclk-gate",
> SCU1_CLK_CAN,
> + SCU1_CLK_STOP2, 13, 0),
> + GATE_CLK(SCU1_CLK_GATE_PCICLK, CLK_GATE_ASPEED, "pciclk-gate", -1,
> + SCU1_CLK_STOP2, 14, 0),
> + GATE_CLK(SCU1_CLK_GATE_SLICLK, CLK_GATE_ASPEED, "soc1-sliclk-gate",
> -1,
> + SCU1_CLK_STOP2, 15, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_E2MCLK, CLK_GATE_ASPEED,
> "soc1-e2m-gate", -1,
> + SCU1_CLK_STOP2, 16, CLK_IS_CRITICAL),
> + GATE_CLK(SCU1_CLK_GATE_PORTCUSB2CLK, CLK_GATE_ASPEED,
> "portcusb2-gate", -1,
> + SCU1_CLK_STOP2, 17, 0),
> + GATE_CLK(SCU1_CLK_GATE_PORTDUSB2CLK, CLK_GATE_ASPEED,
> "portdusb2-gate", -1,
> + SCU1_CLK_STOP2, 18, 0),
> + GATE_CLK(SCU1_CLK_GATE_LTPI1TXCLK, CLK_GATE_ASPEED,
> "ltp1tx-gate", -1,
> + SCU1_CLK_STOP2, 19, 0),
> +};
> +
> +static struct clk_hw *ast2700_clk_hw_register_fixed_display(void __iomem
> *reg, const char *name,
> + struct ast2700_clk_ctrl *clk_ctrl) {
> + unsigned int mult, div, r, n;
> + u32 xdclk;
> + u32 val;
> +
> + val = readl(clk_ctrl->base + SCU0_CLK_SEL2);
> + if (val & BIT(29))
> + xdclk = 800 * HZ_PER_MHZ;
> + else
> + xdclk = 1000 * HZ_PER_MHZ;
> +
> + val = readl(reg);
> + r = val & GENMASK(15, 0);
> + n = (val >> 16) & GENMASK(15, 0);
> + mult = r;
> + div = 2 * n;
> +
> + return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name, NULL, 0,
> +(xdclk * mult) / div); }
> +
> +static struct clk_hw *ast2700_clk_hw_register_hpll(void __iomem *reg,
> + const char *name, const struct clk_hw
> *parent_hw,
> + struct ast2700_clk_ctrl *clk_ctrl) {
> + unsigned int mult, div;
> + u32 val;
> +
> + val = readl(clk_ctrl->base + SCU0_HWSTRAP1);
> + if ((readl(clk_ctrl->base) & REVISION_ID) && (val & BIT(3))) {
> + switch ((val & GENMASK(4, 2)) >> 2) {
> + case 2:
> + return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name,
> NULL,
> + 0, 1800 * HZ_PER_MHZ);
> + case 3:
> + return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name,
> NULL,
> + 0, 1700 * HZ_PER_MHZ);
> + case 6:
> + return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name,
> NULL,
> + 0, 1200 * HZ_PER_MHZ);
> + case 7:
> + return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name,
> NULL,
> + 0, 800 * HZ_PER_MHZ);
> + default:
> + return ERR_PTR(-EINVAL);
> + }
> + } else if ((val & GENMASK(3, 2)) != 0) {
> + switch ((val & GENMASK(3, 2)) >> 2) {
> + case 1:
> + return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name,
> NULL,
> + 0, 1900 * HZ_PER_MHZ);
> + case 2:
> + return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name,
> NULL,
> + 0, 1800 * HZ_PER_MHZ);
> + case 3:
> + return devm_clk_hw_register_fixed_rate(clk_ctrl->dev, name,
> NULL,
> + 0, 1700 * HZ_PER_MHZ);
> + default:
> + return ERR_PTR(-EINVAL);
> + }
> + } else {
> + val = readl(reg);
> +
> + if (val & BIT(24)) {
> + /* Pass through mode */
> + mult = 1;
> + div = 1;
> + } else {
> + u32 m = val & 0x1fff;
> + u32 n = (val >> 13) & 0x3f;
> + u32 p = (val >> 19) & 0xf;
> +
> + mult = (m + 1) / (2 * (n + 1));
> + div = p + 1;
> + }
> + }
> +
> + return devm_clk_hw_register_fixed_factor_parent_hw(clk_ctrl->dev,
> name,
> + parent_hw, 0, mult, div);
> +}
> +
> +static struct clk_hw *ast2700_clk_hw_register_pll(int clk_idx, void __iomem
> *reg,
> + const char *name, const struct clk_hw
> *parent_hw,
> + struct ast2700_clk_ctrl *clk_ctrl) {
> + int scu = clk_ctrl->clk_data->scu;
> + unsigned int mult, div;
> + u32 val = readl(reg);
> +
> + if (val & BIT(24)) {
> + /* Pass through mode */
> + mult = 1;
> + div = 1;
> + } else {
> + u32 m = val & 0x1fff;
> + u32 n = (val >> 13) & 0x3f;
> + u32 p = (val >> 19) & 0xf;
> +
> + if (scu) {
> + mult = (m + 1) / (n + 1);
> + div = p + 1;
> + } else {
> + if (clk_idx == SCU0_CLK_MPLL) {
> + mult = m / (n + 1);
> + div = p + 1;
> + } else {
> + mult = (m + 1) / (2 * (n + 1));
> + div = p + 1;
> + }
> + }
> + }
> +
> + return devm_clk_hw_register_fixed_factor_parent_hw(clk_ctrl->dev,
> name,
> + parent_hw, 0, mult, div);
> +}
> +
> +static struct clk_hw *ast2700_clk_hw_register_uartpll(void __iomem *reg,
> const char *name,
> + const struct clk_hw *parent_hw,
> + struct ast2700_clk_ctrl *clk_ctrl) {
> + unsigned int mult, div;
> + u32 val = readl(reg);
> + u32 r = val & 0xff;
> + u32 n = (val >> 8) & 0x3ff;
> +
> + mult = r;
> + div = n * 2;
> +
> + return devm_clk_hw_register_fixed_factor_parent_hw(clk_ctrl->dev,
> name,
> + parent_hw, 0, mult, div);
> +}
> +
> +static struct clk_hw *ast2700_clk_hw_register_misc(int clk_idx, void
> __iomem *reg,
> + const char *name, const struct clk_hw
> *parent_hw,
> + struct ast2700_clk_ctrl *clk_ctrl) {
> + u32 div = 0;
> +
> + if (clk_idx == SCU0_CLK_MPHY) {
> + div = readl(reg) + 1;
> + } else if (clk_idx == SCU0_CLK_U2PHY_REFCLK) {
> + if (readl(clk_ctrl->base) & REVISION_ID)
> + div = (GET_USB_REFCLK_DIV(readl(reg)) + 1) << 4;
> + else
> + div = (GET_USB_REFCLK_DIV(readl(reg)) + 1) << 1;
> + } else {
> + return ERR_PTR(-EINVAL);
> + }
> +
> + return devm_clk_hw_register_fixed_factor_parent_hw(clk_ctrl->dev,
> name,
> + parent_hw, 0, 1, div);
> +}
> +
> +static int ast2700_clk_is_enabled(struct clk_hw *hw) {
> + struct clk_gate *gate = to_clk_gate(hw);
> + u32 clk = BIT(gate->bit_idx);
> + u32 reg;
> +
> + reg = readl(gate->reg);
> +
> + return !(reg & clk);
> +}
> +
> +static int ast2700_clk_enable(struct clk_hw *hw) {
> + struct clk_gate *gate = to_clk_gate(hw);
> + u32 clk = BIT(gate->bit_idx);
> +
> + if (readl(gate->reg) & clk)
> + writel(clk, gate->reg + 0x04);
> +
> + return 0;
> +}
> +
> +static void ast2700_clk_disable(struct clk_hw *hw) {
> + struct clk_gate *gate = to_clk_gate(hw);
> + u32 clk = BIT(gate->bit_idx);
> +
> + /* Clock is set to enable, so use write to set register */
> + writel(clk, gate->reg);
> +}
> +
> +static const struct clk_ops ast2700_clk_gate_ops = {
> + .enable = ast2700_clk_enable,
> + .disable = ast2700_clk_disable,
> + .is_enabled = ast2700_clk_is_enabled,
> +};
> +
> +static struct clk_hw *ast2700_clk_hw_register_gate(struct device *dev, const
> char *name,
> + const struct clk_hw *parent_hw,
> + void __iomem *reg, u8 clock_idx,
> + unsigned long flags, spinlock_t *lock) {
> + struct clk_init_data init;
> + struct clk_gate *gate;
> + struct clk_hw *hw;
> + int ret = -EINVAL;
> +
> + gate = kzalloc(sizeof(*gate), GFP_KERNEL);
> + if (!gate)
> + return ERR_PTR(-ENOMEM);
> +
> + init.name = name;
> + init.ops = &ast2700_clk_gate_ops;
> + init.flags = flags;
> + init.parent_names = NULL;
> + init.parent_hws = parent_hw ? &parent_hw : NULL;
> + init.parent_data = NULL;
> + init.num_parents = parent_hw ? 1 : 0;
> +
> + gate->reg = reg;
> + gate->bit_idx = clock_idx;
> + gate->flags = 0;
> + gate->lock = lock;
> + gate->hw.init = &init;
> +
> + hw = &gate->hw;
> + ret = clk_hw_register(dev, hw);
> + if (ret) {
> + kfree(gate);
> + hw = ERR_PTR(ret);
> + }
> +
> + return hw;
> +}
> +
> +static void ast2700_soc1_configure_i3c_clk(struct ast2700_clk_ctrl
> +*clk_ctrl) {
> + if (readl(clk_ctrl->base) & REVISION_ID) {
> + u32 val;
> +
> + /* I3C 250MHz = HPLL/4 */
> + val = readl(clk_ctrl->base + SCU1_CLK_SEL2) &
> ~SCU1_CLK_I3C_DIV_MASK;
> + val |= FIELD_PREP(SCU1_CLK_I3C_DIV_MASK,
> SCU1_CLK_I3C_DIV(4));
> + writel(val, clk_ctrl->base + SCU1_CLK_SEL2);
> + }
> +}
> +
> +static inline const struct clk_hw *get_parent_hw_or_null(struct clk_hw
> +**hws, int idx) {
> + if (idx < 0)
> + return NULL;
> + else
> + return hws[idx];
> +}
> +
> +static int ast2700_soc_clk_probe(struct platform_device *pdev) {
> + const struct ast2700_clk_data *clk_data;
> + struct clk_hw_onecell_data *clk_hw_data;
> + struct ast2700_clk_ctrl *clk_ctrl;
> + struct device *dev = &pdev->dev;
> + struct auxiliary_device *adev;
> + void __iomem *clk_base;
> + struct clk_hw **hws;
> + char *reset_name;
> + int ret;
> + int i;
> +
> + clk_ctrl = devm_kzalloc(dev, sizeof(*clk_ctrl), GFP_KERNEL);
> + if (!clk_ctrl)
> + return -ENOMEM;
> + clk_ctrl->dev = dev;
> + dev_set_drvdata(&pdev->dev, clk_ctrl);
> +
> + spin_lock_init(&clk_ctrl->lock);
> +
> + clk_base = devm_platform_ioremap_resource(pdev, 0);
> + if (IS_ERR(clk_base))
> + return PTR_ERR(clk_base);
> +
> + clk_ctrl->base = clk_base;
> +
> + clk_data = device_get_match_data(dev);
> + if (!clk_data)
> + return -ENODEV;
> +
> + clk_ctrl->clk_data = clk_data;
> + reset_name = devm_kasprintf(dev, GFP_KERNEL, "reset%d",
> +clk_data->scu);
> +
> + clk_hw_data = devm_kzalloc(dev, struct_size(clk_hw_data, hws,
> clk_data->nr_clks),
> + GFP_KERNEL);
> + if (!clk_hw_data)
> + return -ENOMEM;
> +
> + clk_hw_data->num = clk_data->nr_clks;
> + hws = clk_hw_data->hws;
> +
> + if (clk_data->scu)
> + ast2700_soc1_configure_i3c_clk(clk_ctrl);
> +
> + for (i = 0; i < clk_data->nr_clks; i++) {
> + const struct ast2700_clk_info *clk = &clk_data->clk_info[i];
> + const struct clk_hw *phw = NULL;
> + unsigned int id = clk->id;
> + void __iomem *reg = NULL;
> +
> + if (id >= clk_hw_data->num || hws[id]) {
> + dev_err(dev, "clk id %u invalid for %s\n", id, clk->name);
> + return -EINVAL;
> + }
> +
> + if (clk->type == CLK_FIXED) {
> + const struct ast2700_clk_fixed_rate_data *fixed_rate =
> +&clk->data.rate;
> +
> + hws[id] = devm_clk_hw_register_fixed_rate(dev, clk->name,
> NULL, 0,
> + fixed_rate->fixed_rate);
> + } else if (clk->type == CLK_FIXED_FACTOR) {
> + const struct ast2700_clk_fixed_factor_data *factor =
> +&clk->data.factor;
> +
> + phw = hws[factor->parent_id];
> + hws[id] = devm_clk_hw_register_fixed_factor_parent_hw(dev,
> clk->name,
> + phw, 0, factor->mult,
> + factor->div);
> + } else if (clk->type == CLK_FIXED_DISPLAY) {
> + reg = clk_ctrl->base + clk->data.display_rate.reg;
> +
> + hws[id] = ast2700_clk_hw_register_fixed_display(reg,
> clk->name, clk_ctrl);
> + } else if (clk->type == CLK_HPLL) {
> + const struct ast2700_clk_pll_data *pll = &clk->data.pll;
> +
> + reg = clk_ctrl->base + pll->reg;
> + phw = hws[pll->parent_id];
> + hws[id] = ast2700_clk_hw_register_hpll(reg, clk->name, phw,
> clk_ctrl);
> + } else if (clk->type == CLK_PLL) {
> + const struct ast2700_clk_pll_data *pll = &clk->data.pll;
> +
> + reg = clk_ctrl->base + pll->reg;
> + phw = hws[pll->parent_id];
> + hws[id] = ast2700_clk_hw_register_pll(id, reg, clk->name, phw,
> clk_ctrl);
> + } else if (clk->type == CLK_UART_PLL) {
> + const struct ast2700_clk_pll_data *pll = &clk->data.pll;
> +
> + reg = clk_ctrl->base + pll->reg;
> + phw = hws[pll->parent_id];
> + hws[id] = ast2700_clk_hw_register_uartpll(reg, clk->name, phw,
> clk_ctrl);
> + } else if (clk->type == CLK_MUX) {
> + const struct ast2700_clk_mux_data *mux = &clk->data.mux;
> +
> + reg = clk_ctrl->base + mux->reg;
> + for (int j = 0; j < mux->num_parents; j++) {
> + unsigned int pid = mux->parent_ids[j];
> +
> + mux->parent_hws[j] = hws[pid];
> + }
> +
> + hws[id] = devm_clk_hw_register_mux_parent_hws(dev,
> clk->name,
> + mux->parent_hws,
> + mux->num_parents, 0,
> + reg, mux->bit_shift,
> + mux->bit_width, 0,
> + &clk_ctrl->lock);
> + } else if (clk->type == CLK_MISC) {
> + const struct ast2700_clk_pll_data *pll = &clk->data.pll;
> +
> + reg = clk_ctrl->base + pll->reg;
> + phw = hws[pll->parent_id];
> + hws[id] = ast2700_clk_hw_register_misc(id, reg, clk->name,
> phw, clk_ctrl);
> + } else if (clk->type == CLK_DIVIDER) {
> + const struct ast2700_clk_div_data *divider = &clk->data.div;
> +
> + reg = clk_ctrl->base + divider->reg;
> + phw = hws[divider->parent_id];
> + hws[id] = clk_hw_register_divider_table_parent_hw(dev,
> clk->name,
> + phw,
> + 0, reg,
> + divider->bit_shift,
> + divider->bit_width, 0,
> + divider->div_table,
> + &clk_ctrl->lock);
> + } else if (clk->type == CLK_GATE_ASPEED) {
> + const struct ast2700_clk_gate_data *gate = &clk->data.gate;
> +
> + phw = get_parent_hw_or_null(hws, gate->parent_id);
> + reg = clk_ctrl->base + gate->reg;
> + hws[id] = ast2700_clk_hw_register_gate(dev, clk->name, phw,
> reg, gate->bit,
> + gate->flags, &clk_ctrl->lock);
> + } else {
> + const struct ast2700_clk_gate_data *gate = &clk->data.gate;
> +
> + phw = get_parent_hw_or_null(hws, gate->parent_id);
> + reg = clk_ctrl->base + gate->reg;
> + hws[id] = devm_clk_hw_register_gate_parent_hw(dev,
> clk->name, phw,
> + gate->flags, reg, gate->bit,
> + 0, &clk_ctrl->lock);
> + }
> +
> + if (IS_ERR(hws[id]))
> + return PTR_ERR(hws[id]);
> + }
> +
> + ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get,
> clk_hw_data);
> + if (ret)
> + return ret;
> +
> + adev = devm_auxiliary_device_create(dev, reset_name, (__force void
> *)clk_base);
> + if (!adev)
> + return -ENODEV;
> +
> + return 0;
> +}
> +
> +static const struct ast2700_clk_data ast2700_clk0_data = {
> + .scu = 0,
> + .nr_clks = ARRAY_SIZE(ast2700_scu0_clk_info),
> + .clk_info = ast2700_scu0_clk_info,
> +};
> +
> +static const struct ast2700_clk_data ast2700_clk1_data = {
> + .scu = 1,
> + .nr_clks = ARRAY_SIZE(ast2700_scu1_clk_info),
> + .clk_info = ast2700_scu1_clk_info,
> +};
> +
> +static const struct of_device_id ast2700_scu_match[] = {
> + { .compatible = "aspeed,ast2700-scu0", .data = &ast2700_clk0_data },
> + { .compatible = "aspeed,ast2700-scu1", .data = &ast2700_clk1_data },
> + { /* sentinel */ }
> +};
> +
> +MODULE_DEVICE_TABLE(of, ast2700_scu_match);
> +
> +static struct platform_driver ast2700_scu_driver = {
> + .probe = ast2700_soc_clk_probe,
> + .driver = {
> + .name = "clk-ast2700",
> + .of_match_table = ast2700_scu_match,
> + },
> +};
> +
> +module_platform_driver(ast2700_scu_driver);
> --
> 2.34.1
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