drivers/clk/mediatek/clk-mt7986-infracfg.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2021 MediaTek Inc.
   4  * Author: Sam Shih <sam.shih@mediatek.com>
   5  * Author: Wenzhen Yu <wenzhen.yu@mediatek.com>
   6  */
   7
   8 #include <linux/clk-provider.h>
   9 #include <linux/mod_devicetable.h>
  10 #include <linux/platform_device.h>
  11 #include "clk-mtk.h"
  12 #include "clk-gate.h"
  13 #include "clk-mux.h"
  14
  15 #include <dt-bindings/clock/mt7986-clk.h>
  16 #include <linux/clk.h>
  17
  18 static DEFINE_SPINLOCK(mt7986_clk_lock);
  19
  20 static const struct mtk_fixed_factor infra_divs[] = {
  21         FACTOR(CLK_INFRA_SYSAXI_D2, "infra_sysaxi_d2", "sysaxi_sel", 1, 2),
  22 };
  23
  24 static const char *const infra_uart_parent[] __initconst = { "csw_f26m_sel",
  25                                                              "uart_sel" };
  26
  27 static const char *const infra_spi_parents[] __initconst = { "i2c_sel",
  28                                                              "spi_sel" };
  29
  30 static const char *const infra_pwm_bsel_parents[] __initconst = {
  31         "top_rtc_32p7k", "csw_f26m_sel", "infra_sysaxi_d2", "pwm_sel"
  32 };
  33
  34 static const char *const infra_pcie_parents[] __initconst = {
  35         "top_rtc_32p7k", "csw_f26m_sel", "top_xtal", "pextp_tl_ck_sel"
  36 };
  37
  38 static const struct mtk_mux infra_muxes[] = {
  39         /* MODULE_CLK_SEL_0 */
  40         MUX_GATE_CLR_SET_UPD(CLK_INFRA_UART0_SEL, "infra_uart0_sel",
  41                              infra_uart_parent, 0x0018, 0x0010, 0x0014, 0, 1,
  42                              -1, -1, -1),
  43         MUX_GATE_CLR_SET_UPD(CLK_INFRA_UART1_SEL, "infra_uart1_sel",
  44                              infra_uart_parent, 0x0018, 0x0010, 0x0014, 1, 1,
  45                              -1, -1, -1),
  46         MUX_GATE_CLR_SET_UPD(CLK_INFRA_UART2_SEL, "infra_uart2_sel",
  47                              infra_uart_parent, 0x0018, 0x0010, 0x0014, 2, 1,
  48                              -1, -1, -1),
  49         MUX_GATE_CLR_SET_UPD(CLK_INFRA_SPI0_SEL, "infra_spi0_sel",
  50                              infra_spi_parents, 0x0018, 0x0010, 0x0014, 4, 1,
  51                              -1, -1, -1),
  52         MUX_GATE_CLR_SET_UPD(CLK_INFRA_SPI1_SEL, "infra_spi1_sel",
  53                              infra_spi_parents, 0x0018, 0x0010, 0x0014, 5, 1,
  54                              -1, -1, -1),
  55         MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM1_SEL, "infra_pwm1_sel",
  56                              infra_pwm_bsel_parents, 0x0018, 0x0010, 0x0014, 9,
  57                              2, -1, -1, -1),
  58         MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM2_SEL, "infra_pwm2_sel",
  59                              infra_pwm_bsel_parents, 0x0018, 0x0010, 0x0014, 11,
  60                              2, -1, -1, -1),
  61         MUX_GATE_CLR_SET_UPD(CLK_INFRA_PWM_BSEL, "infra_pwm_bsel",
  62                              infra_pwm_bsel_parents, 0x0018, 0x0010, 0x0014, 13,
  63                              2, -1, -1, -1),
  64         /* MODULE_CLK_SEL_1 */
  65         MUX_GATE_CLR_SET_UPD(CLK_INFRA_PCIE_SEL, "infra_pcie_sel",
  66                              infra_pcie_parents, 0x0028, 0x0020, 0x0024, 0, 2,
  67                              -1, -1, -1),
  68 };
  69
  70 static const struct mtk_gate_regs infra0_cg_regs = {
  71         .set_ofs = 0x40,
  72         .clr_ofs = 0x44,
  73         .sta_ofs = 0x48,
  74 };
  75
  76 static const struct mtk_gate_regs infra1_cg_regs = {
  77         .set_ofs = 0x50,
  78         .clr_ofs = 0x54,
  79         .sta_ofs = 0x58,
  80 };
  81
  82 static const struct mtk_gate_regs infra2_cg_regs = {
  83         .set_ofs = 0x60,
  84         .clr_ofs = 0x64,
  85         .sta_ofs = 0x68,
  86 };
  87
  88 #define GATE_INFRA0(_id, _name, _parent, _shift)                        \
  89         GATE_MTK(_id, _name, _parent, &infra0_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
  90
  91 #define GATE_INFRA1(_id, _name, _parent, _shift)                        \
  92         GATE_MTK(_id, _name, _parent, &infra1_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
  93
  94 #define GATE_INFRA2(_id, _name, _parent, _shift)                        \
  95         GATE_MTK(_id, _name, _parent, &infra2_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
  96
  97 static const struct mtk_gate infra_clks[] = {
  98         /* INFRA0 */
  99         GATE_INFRA0(CLK_INFRA_GPT_STA, "infra_gpt_sta", "infra_sysaxi_d2", 0),
 100         GATE_INFRA0(CLK_INFRA_PWM_HCK, "infra_pwm_hck", "infra_sysaxi_d2", 1),
 101         GATE_INFRA0(CLK_INFRA_PWM_STA, "infra_pwm_sta", "infra_pwm_bsel", 2),
 102         GATE_INFRA0(CLK_INFRA_PWM1_CK, "infra_pwm1", "infra_pwm1_sel", 3),
 103         GATE_INFRA0(CLK_INFRA_PWM2_CK, "infra_pwm2", "infra_pwm2_sel", 4),
 104         GATE_INFRA0(CLK_INFRA_CQ_DMA_CK, "infra_cq_dma", "sysaxi_sel", 6),
 105         GATE_INFRA0(CLK_INFRA_EIP97_CK, "infra_eip97", "eip_b_sel", 7),
 106         GATE_INFRA0(CLK_INFRA_AUD_BUS_CK, "infra_aud_bus", "sysaxi_sel", 8),
 107         GATE_INFRA0(CLK_INFRA_AUD_26M_CK, "infra_aud_26m", "csw_f26m_sel", 9),
 108         GATE_INFRA0(CLK_INFRA_AUD_L_CK, "infra_aud_l", "aud_l_sel", 10),
 109         GATE_INFRA0(CLK_INFRA_AUD_AUD_CK, "infra_aud_aud", "a1sys_sel", 11),
 110         GATE_INFRA0(CLK_INFRA_AUD_EG2_CK, "infra_aud_eg2", "a_tuner_sel", 13),
 111         GATE_INFRA0(CLK_INFRA_DRAMC_26M_CK, "infra_dramc_26m", "csw_f26m_sel",
 112                     14),
 113         GATE_INFRA0(CLK_INFRA_DBG_CK, "infra_dbg", "infra_sysaxi_d2", 15),
 114         GATE_INFRA0(CLK_INFRA_AP_DMA_CK, "infra_ap_dma", "infra_sysaxi_d2", 16),
 115         GATE_INFRA0(CLK_INFRA_SEJ_CK, "infra_sej", "infra_sysaxi_d2", 24),
 116         GATE_INFRA0(CLK_INFRA_SEJ_13M_CK, "infra_sej_13m", "csw_f26m_sel", 25),
 117         GATE_INFRA0(CLK_INFRA_TRNG_CK, "infra_trng", "sysaxi_sel", 26),
 118         /* INFRA1 */
 119         GATE_INFRA1(CLK_INFRA_THERM_CK, "infra_therm", "csw_f26m_sel", 0),
 120         GATE_INFRA1(CLK_INFRA_I2C0_CK, "infra_i2c0", "i2c_sel", 1),
 121         GATE_INFRA1(CLK_INFRA_UART0_CK, "infra_uart0", "infra_uart0_sel", 2),
 122         GATE_INFRA1(CLK_INFRA_UART1_CK, "infra_uart1", "infra_uart1_sel", 3),
 123         GATE_INFRA1(CLK_INFRA_UART2_CK, "infra_uart2", "infra_uart2_sel", 4),
 124         GATE_INFRA1(CLK_INFRA_NFI1_CK, "infra_nfi1", "nfi1x_sel", 8),
 125         GATE_INFRA1(CLK_INFRA_SPINFI1_CK, "infra_spinfi1", "spinfi_sel", 9),
 126         GATE_INFRA1(CLK_INFRA_NFI_HCK_CK, "infra_nfi_hck", "infra_sysaxi_d2",
 127                     10),
 128         GATE_INFRA1(CLK_INFRA_SPI0_CK, "infra_spi0", "infra_spi0_sel", 11),
 129         GATE_INFRA1(CLK_INFRA_SPI1_CK, "infra_spi1", "infra_spi1_sel", 12),
 130         GATE_INFRA1(CLK_INFRA_SPI0_HCK_CK, "infra_spi0_hck", "infra_sysaxi_d2",
 131                     13),
 132         GATE_INFRA1(CLK_INFRA_SPI1_HCK_CK, "infra_spi1_hck", "infra_sysaxi_d2",
 133                     14),
 134         GATE_INFRA1(CLK_INFRA_FRTC_CK, "infra_frtc", "top_rtc_32k", 15),
 135         GATE_INFRA1(CLK_INFRA_MSDC_CK, "infra_msdc", "emmc_416m_sel", 16),
 136         GATE_INFRA1(CLK_INFRA_MSDC_HCK_CK, "infra_msdc_hck", "emmc_250m_sel",
 137                     17),
 138         GATE_INFRA1(CLK_INFRA_MSDC_133M_CK, "infra_msdc_133m", "sysaxi_sel",
 139                     18),
 140         GATE_INFRA1(CLK_INFRA_MSDC_66M_CK, "infra_msdc_66m", "infra_sysaxi_d2",
 141                     19),
 142         GATE_INFRA1(CLK_INFRA_ADC_26M_CK, "infra_adc_26m", "infra_adc_frc", 20),
 143         GATE_INFRA1(CLK_INFRA_ADC_FRC_CK, "infra_adc_frc", "csw_f26m_sel", 21),
 144         GATE_INFRA1(CLK_INFRA_FBIST2FPC_CK, "infra_fbist2fpc", "nfi1x_sel", 23),
 145         /* INFRA2 */
 146         GATE_INFRA2(CLK_INFRA_IUSB_133_CK, "infra_iusb_133", "sysaxi_sel", 0),
 147         GATE_INFRA2(CLK_INFRA_IUSB_66M_CK, "infra_iusb_66m", "infra_sysaxi_d2",
 148                     1),
 149         GATE_INFRA2(CLK_INFRA_IUSB_SYS_CK, "infra_iusb_sys", "u2u3_sys_sel", 2),
 150         GATE_INFRA2(CLK_INFRA_IUSB_CK, "infra_iusb", "u2u3_sel", 3),
 151         GATE_INFRA2(CLK_INFRA_IPCIE_CK, "infra_ipcie", "pextp_tl_ck_sel", 12),
 152         GATE_INFRA2(CLK_INFRA_IPCIE_PIPE_CK, "infra_ipcie_pipe", "top_xtal",
 153                     13),
 154         GATE_INFRA2(CLK_INFRA_IPCIER_CK, "infra_ipcier", "csw_f26m_sel", 14),
 155         GATE_INFRA2(CLK_INFRA_IPCIEB_CK, "infra_ipcieb", "sysaxi_sel", 15),
 156 };
 157
 158 static const struct mtk_clk_desc infra_desc = {
 159         .clks = infra_clks,
 160         .num_clks = ARRAY_SIZE(infra_clks),
 161         .factor_clks = infra_divs,
 162         .num_factor_clks = ARRAY_SIZE(infra_divs),
 163         .mux_clks = infra_muxes,
 164         .num_mux_clks = ARRAY_SIZE(infra_muxes),
 165         .clk_lock = &mt7986_clk_lock,
 166 };
 167
 168 static const struct of_device_id of_match_clk_mt7986_infracfg[] = {
 169         { .compatible = "mediatek,mt7986-infracfg", .data = &infra_desc },
 170         { /* sentinel */ }
 171 };
 172 MODULE_DEVICE_TABLE(of, of_match_clk_mt7986_infracfg);
 173
 174 static struct platform_driver clk_mt7986_infracfg_drv = {
 175         .driver = {
 176                 .name = "clk-mt7986-infracfg",
 177                 .of_match_table = of_match_clk_mt7986_infracfg,
 178         },
 179         .probe = mtk_clk_simple_probe,
 180         .remove = mtk_clk_simple_remove,
 181 };
 182 module_platform_driver(clk_mt7986_infracfg_drv);
 183
 184 MODULE_DESCRIPTION("MediaTek MT7986 infracfg clocks driver");
 185 MODULE_LICENSE("GPL");