Quelle  clk-mt7986-infracfg.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2021 MediaTek Inc.
 * Author: Sam Shih <sam.shih@mediatek.com>
 * Author: Wenzhen Yu <wenzhen.yu@mediatek.com>
 */

#include <linux/clk-provider.h>
#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>
#include "clk-mtk.h"
#include "clk-gate.h"
#include "clk-mux.h"

#include <dt-bindings/clock/mt7986-clk.h>
#include <linux/clk.h>

static DEFINE_SPINLOCK(mt7986_clk_lock);

static const struct mtk_fixed_factor infra_divs[] = {
 FACTOR(CLK_INFRA_SYSAXI_D2, "infra_sysaxi_d2", "sysaxi_sel", 1, 2),
};

static const char *const infra_uart_parent[] __initconst = { "csw_f26m_sel",
            "uart_sel" };

static const char *const infra_spi_parents[] __initconst = { "i2c_sel",
            "spi_sel" };

static const char *const infra_pwm_bsel_parents[] __initconst = {
 "top_rtc_32p7k", "csw_f26m_sel", "infra_sysaxi_d2", "pwm_sel"
};

static const char *const infra_pcie_parents[] __initconst = {
 "top_rtc_32p7k", "csw_f26m_sel", "top_xtal", "pextp_tl_ck_sel"
};

static const struct mtk_mux infra_muxes[] = {
 /* MODULE_CLK_SEL_0 */
 MUX_GATE_CLR_SET_UPD(CLK_INFRA_UART0_SEL, "infra_uart0_sel",
        infra_uart_parent, 0x0018, 0x0010, 0x0014, 0, 1,
        -1, -1, -1),
 MUX_GATE_CLR_SET_UPD(CLK_INFRA_UART1_SEL, "infra_uart1_sel",
        infra_uart_parent, 0x0018, 0x0010, 0x0014, 1, 1,
        -1, -1, -1),
 MUX_GATE_CLR_SET_UPD(CLK_INFRA_UART2_SEL, "infra_uart2_sel",
        infra_uart_parent, 0x0018, 0x0010, 0x0014, 2, 1,
        -1, -1, -1),
 MUX_GATE_CLR_SET_UPD(CLK_INFRA_SPI0_SEL, "infra_spi0_sel",
        infra_spi_parents, 0x0018, 0x0010, 0x0014, 4, 1,
        -1, -1, -1),
 MUX_GATE_CLR_SET_UPD(CLK_INFRA_SPI1_SEL, "infra_spi1_sel",
        infra_spi_parents, 0x0018, 0x0010, 0x0014, 5, 1,
        -1, -1, -1),
 MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM1_SEL, "infra_pwm1_sel",
        infra_pwm_bsel_parents, 0x0018, 0x0010, 0x0014, 9,
        2, -1, -1, -1),
 MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM2_SEL, "infra_pwm2_sel",
        infra_pwm_bsel_parents, 0x0018, 0x0010, 0x0014, 11,
        2, -1, -1, -1),
 MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM_BSEL, "infra_pwm_bsel",
        infra_pwm_bsel_parents, 0x0018, 0x0010, 0x0014, 13,
        2, -1, -1, -1),
 /* MODULE_CLK_SEL_1 */
 MUX_GATE_CLR_SET_UPD(CLK_INFRA_PCIE_SEL, "infra_pcie_sel",
        infra_pcie_parents, 0x0028, 0x0020, 0x0024, 0, 2,
        -1, -1, -1),
};

static const struct mtk_gate_regs infra0_cg_regs = {
 .set_ofs = 0x40,
 .clr_ofs = 0x44,
 .sta_ofs = 0x48,
};

static const struct mtk_gate_regs infra1_cg_regs = {
 .set_ofs = 0x50,
 .clr_ofs = 0x54,
 .sta_ofs = 0x58,
};

static const struct mtk_gate_regs infra2_cg_regs = {
 .set_ofs = 0x60,
 .clr_ofs = 0x64,
 .sta_ofs = 0x68,
};

#define GATE_INFRA0(_id, _name, _parent, _shift)   \
 GATE_MTK(_id, _name, _parent, &infra0_cg_regs, _shift, &mtk_clk_gate_ops_setclr)

#define GATE_INFRA1(_id, _name, _parent, _shift)   \
 GATE_MTK(_id, _name, _parent, &infra1_cg_regs, _shift, &mtk_clk_gate_ops_setclr)

#define GATE_INFRA2(_id, _name, _parent, _shift)   \
 GATE_MTK(_id, _name, _parent, &infra2_cg_regs, _shift, &mtk_clk_gate_ops_setclr)

static const struct mtk_gate infra_clks[] = {
 /* INFRA0 */
 GATE_INFRA0(CLK_INFRA_GPT_STA, "infra_gpt_sta", "infra_sysaxi_d2", 0),
 GATE_INFRA0(CLK_INFRA_PWM_HCK, "infra_pwm_hck", "infra_sysaxi_d2", 1),
 GATE_INFRA0(CLK_INFRA_PWM_STA, "infra_pwm_sta", "infra_pwm_bsel", 2),
 GATE_INFRA0(CLK_INFRA_PWM1_CK, "infra_pwm1", "infra_pwm1_sel", 3),
 GATE_INFRA0(CLK_INFRA_PWM2_CK, "infra_pwm2", "infra_pwm2_sel", 4),
 GATE_INFRA0(CLK_INFRA_CQ_DMA_CK, "infra_cq_dma", "sysaxi_sel", 6),
 GATE_INFRA0(CLK_INFRA_EIP97_CK, "infra_eip97", "eip_b_sel", 7),
 GATE_INFRA0(CLK_INFRA_AUD_BUS_CK, "infra_aud_bus", "sysaxi_sel", 8),
 GATE_INFRA0(CLK_INFRA_AUD_26M_CK, "infra_aud_26m", "csw_f26m_sel", 9),
 GATE_INFRA0(CLK_INFRA_AUD_L_CK, "infra_aud_l", "aud_l_sel", 10),
 GATE_INFRA0(CLK_INFRA_AUD_AUD_CK, "infra_aud_aud", "a1sys_sel", 11),
 GATE_INFRA0(CLK_INFRA_AUD_EG2_CK, "infra_aud_eg2", "a_tuner_sel", 13),
 GATE_INFRA0(CLK_INFRA_DRAMC_26M_CK, "infra_dramc_26m", "csw_f26m_sel",
      14),
 GATE_INFRA0(CLK_INFRA_DBG_CK, "infra_dbg", "infra_sysaxi_d2", 15),
 GATE_INFRA0(CLK_INFRA_AP_DMA_CK, "infra_ap_dma", "infra_sysaxi_d2", 16),
 GATE_INFRA0(CLK_INFRA_SEJ_CK, "infra_sej", "infra_sysaxi_d2", 24),
 GATE_INFRA0(CLK_INFRA_SEJ_13M_CK, "infra_sej_13m", "csw_f26m_sel", 25),
 GATE_INFRA0(CLK_INFRA_TRNG_CK, "infra_trng", "sysaxi_sel", 26),
 /* INFRA1 */
 GATE_INFRA1(CLK_INFRA_THERM_CK, "infra_therm", "csw_f26m_sel", 0),
 GATE_INFRA1(CLK_INFRA_I2C0_CK, "infra_i2c0", "i2c_sel", 1),
 GATE_INFRA1(CLK_INFRA_UART0_CK, "infra_uart0", "infra_uart0_sel", 2),
 GATE_INFRA1(CLK_INFRA_UART1_CK, "infra_uart1", "infra_uart1_sel", 3),
 GATE_INFRA1(CLK_INFRA_UART2_CK, "infra_uart2", "infra_uart2_sel", 4),
 GATE_INFRA1(CLK_INFRA_NFI1_CK, "infra_nfi1", "nfi1x_sel", 8),
 GATE_INFRA1(CLK_INFRA_SPINFI1_CK, "infra_spinfi1", "spinfi_sel", 9),
 GATE_INFRA1(CLK_INFRA_NFI_HCK_CK, "infra_nfi_hck", "infra_sysaxi_d2",
      10),
 GATE_INFRA1(CLK_INFRA_SPI0_CK, "infra_spi0", "infra_spi0_sel", 11),
 GATE_INFRA1(CLK_INFRA_SPI1_CK, "infra_spi1", "infra_spi1_sel", 12),
 GATE_INFRA1(CLK_INFRA_SPI0_HCK_CK, "infra_spi0_hck", "infra_sysaxi_d2",
      13),
 GATE_INFRA1(CLK_INFRA_SPI1_HCK_CK, "infra_spi1_hck", "infra_sysaxi_d2",
      14),
 GATE_INFRA1(CLK_INFRA_FRTC_CK, "infra_frtc", "top_rtc_32k", 15),
 GATE_INFRA1(CLK_INFRA_MSDC_CK, "infra_msdc", "emmc_416m_sel", 16),
 GATE_INFRA1(CLK_INFRA_MSDC_HCK_CK, "infra_msdc_hck", "emmc_250m_sel",
      17),
 GATE_INFRA1(CLK_INFRA_MSDC_133M_CK, "infra_msdc_133m", "sysaxi_sel",
      18),
 GATE_INFRA1(CLK_INFRA_MSDC_66M_CK, "infra_msdc_66m", "infra_sysaxi_d2",
      19),
 GATE_INFRA1(CLK_INFRA_ADC_26M_CK, "infra_adc_26m", "infra_adc_frc", 20),
 GATE_INFRA1(CLK_INFRA_ADC_FRC_CK, "infra_adc_frc", "csw_f26m_sel", 21),
 GATE_INFRA1(CLK_INFRA_FBIST2FPC_CK, "infra_fbist2fpc", "nfi1x_sel", 23),
 /* INFRA2 */
 GATE_INFRA2(CLK_INFRA_IUSB_133_CK, "infra_iusb_133", "sysaxi_sel", 0),
 GATE_INFRA2(CLK_INFRA_IUSB_66M_CK, "infra_iusb_66m", "infra_sysaxi_d2",
      1),
 GATE_INFRA2(CLK_INFRA_IUSB_SYS_CK, "infra_iusb_sys", "u2u3_sys_sel", 2),
 GATE_INFRA2(CLK_INFRA_IUSB_CK, "infra_iusb", "u2u3_sel", 3),
 GATE_INFRA2(CLK_INFRA_IPCIE_CK, "infra_ipcie", "pextp_tl_ck_sel", 12),
 GATE_INFRA2(CLK_INFRA_IPCIE_PIPE_CK, "infra_ipcie_pipe", "top_xtal",
      13),
 GATE_INFRA2(CLK_INFRA_IPCIER_CK, "infra_ipcier", "csw_f26m_sel", 14),
 GATE_INFRA2(CLK_INFRA_IPCIEB_CK, "infra_ipcieb", "sysaxi_sel", 15),
};

static const struct mtk_clk_desc infra_desc = {
 .clks = infra_clks,
 .num_clks = ARRAY_SIZE(infra_clks),
 .factor_clks = infra_divs,
 .num_factor_clks = ARRAY_SIZE(infra_divs),
 .mux_clks = infra_muxes,
 .num_mux_clks = ARRAY_SIZE(infra_muxes),
 .clk_lock = &mt7986_clk_lock,
};

static const struct of_device_id of_match_clk_mt7986_infracfg[] = {
 { .compatible = "mediatek,mt7986-infracfg", .data = &infra_desc },
 { /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, of_match_clk_mt7986_infracfg);

static struct platform_driver clk_mt7986_infracfg_drv = {
 .driver = {
  .name = "clk-mt7986-infracfg",
  .of_match_table = of_match_clk_mt7986_infracfg,
 },
 .probe = mtk_clk_simple_probe,
 .remove = mtk_clk_simple_remove,
};
module_platform_driver(clk_mt7986_infracfg_drv);

MODULE_DESCRIPTION("MediaTek MT7986 infracfg clocks driver");
MODULE_LICENSE("GPL");