| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * Hi3798CV200 Clock and Reset Generator Driver |
| * |
| * Copyright (c) 2016 HiSilicon Technologies Co., Ltd. |
| */ |
| |
| #include <dt-bindings/clock/histb-clock.h> |
| #include <linux/clk-provider.h> |
| #include <linux/module.h> |
| #include <linux/of.h> |
| #include <linux/platform_device.h> |
| #include "clk.h" |
| #include "crg.h" |
| #include "reset.h" |
| |
| /* hi3798CV200 core CRG */ |
| #define HI3798CV200_INNER_CLK_OFFSET 64 |
| #define HI3798CV200_FIXED_24M 65 |
| #define HI3798CV200_FIXED_25M 66 |
| #define HI3798CV200_FIXED_50M 67 |
| #define HI3798CV200_FIXED_75M 68 |
| #define HI3798CV200_FIXED_100M 69 |
| #define HI3798CV200_FIXED_150M 70 |
| #define HI3798CV200_FIXED_200M 71 |
| #define HI3798CV200_FIXED_250M 72 |
| #define HI3798CV200_FIXED_300M 73 |
| #define HI3798CV200_FIXED_400M 74 |
| #define HI3798CV200_MMC_MUX 75 |
| #define HI3798CV200_ETH_PUB_CLK 76 |
| #define HI3798CV200_ETH_BUS_CLK 77 |
| #define HI3798CV200_ETH_BUS0_CLK 78 |
| #define HI3798CV200_ETH_BUS1_CLK 79 |
| #define HI3798CV200_COMBPHY1_MUX 80 |
| #define HI3798CV200_FIXED_12M 81 |
| #define HI3798CV200_FIXED_48M 82 |
| #define HI3798CV200_FIXED_60M 83 |
| #define HI3798CV200_FIXED_166P5M 84 |
| #define HI3798CV200_SDIO0_MUX 85 |
| #define HI3798CV200_COMBPHY0_MUX 86 |
| |
| #define HI3798CV200_CRG_NR_CLKS 128 |
| |
| static const struct hisi_fixed_rate_clock hi3798cv200_fixed_rate_clks[] = { |
| { HISTB_OSC_CLK, "clk_osc", NULL, 0, 24000000, }, |
| { HISTB_APB_CLK, "clk_apb", NULL, 0, 100000000, }, |
| { HISTB_AHB_CLK, "clk_ahb", NULL, 0, 200000000, }, |
| { HI3798CV200_FIXED_12M, "12m", NULL, 0, 12000000, }, |
| { HI3798CV200_FIXED_24M, "24m", NULL, 0, 24000000, }, |
| { HI3798CV200_FIXED_25M, "25m", NULL, 0, 25000000, }, |
| { HI3798CV200_FIXED_48M, "48m", NULL, 0, 48000000, }, |
| { HI3798CV200_FIXED_50M, "50m", NULL, 0, 50000000, }, |
| { HI3798CV200_FIXED_60M, "60m", NULL, 0, 60000000, }, |
| { HI3798CV200_FIXED_75M, "75m", NULL, 0, 75000000, }, |
| { HI3798CV200_FIXED_100M, "100m", NULL, 0, 100000000, }, |
| { HI3798CV200_FIXED_150M, "150m", NULL, 0, 150000000, }, |
| { HI3798CV200_FIXED_166P5M, "166p5m", NULL, 0, 165000000, }, |
| { HI3798CV200_FIXED_200M, "200m", NULL, 0, 200000000, }, |
| { HI3798CV200_FIXED_250M, "250m", NULL, 0, 250000000, }, |
| }; |
| |
| static const char *const mmc_mux_p[] = { |
| "100m", "50m", "25m", "200m", "150m" }; |
| static u32 mmc_mux_table[] = {0, 1, 2, 3, 6}; |
| |
| static const char *const comphy_mux_p[] = { |
| "100m", "25m"}; |
| static u32 comphy_mux_table[] = {2, 3}; |
| |
| static const char *const sdio_mux_p[] = { |
| "100m", "50m", "150m", "166p5m" }; |
| static u32 sdio_mux_table[] = {0, 1, 2, 3}; |
| |
| static struct hisi_mux_clock hi3798cv200_mux_clks[] = { |
| { HI3798CV200_MMC_MUX, "mmc_mux", mmc_mux_p, ARRAY_SIZE(mmc_mux_p), |
| CLK_SET_RATE_PARENT, 0xa0, 8, 3, 0, mmc_mux_table, }, |
| { HI3798CV200_COMBPHY0_MUX, "combphy0_mux", |
| comphy_mux_p, ARRAY_SIZE(comphy_mux_p), |
| CLK_SET_RATE_PARENT, 0x188, 2, 2, 0, comphy_mux_table, }, |
| { HI3798CV200_COMBPHY1_MUX, "combphy1_mux", |
| comphy_mux_p, ARRAY_SIZE(comphy_mux_p), |
| CLK_SET_RATE_PARENT, 0x188, 10, 2, 0, comphy_mux_table, }, |
| { HI3798CV200_SDIO0_MUX, "sdio0_mux", sdio_mux_p, |
| ARRAY_SIZE(sdio_mux_p), CLK_SET_RATE_PARENT, |
| 0x9c, 8, 2, 0, sdio_mux_table, }, |
| }; |
| |
| static u32 mmc_phase_regvals[] = {0, 1, 2, 3, 4, 5, 6, 7}; |
| static u32 mmc_phase_degrees[] = {0, 45, 90, 135, 180, 225, 270, 315}; |
| |
| static struct hisi_phase_clock hi3798cv200_phase_clks[] = { |
| { HISTB_MMC_SAMPLE_CLK, "mmc_sample", "clk_mmc_ciu", |
| CLK_SET_RATE_PARENT, 0xa0, 12, 3, mmc_phase_degrees, |
| mmc_phase_regvals, ARRAY_SIZE(mmc_phase_regvals) }, |
| { HISTB_MMC_DRV_CLK, "mmc_drive", "clk_mmc_ciu", |
| CLK_SET_RATE_PARENT, 0xa0, 16, 3, mmc_phase_degrees, |
| mmc_phase_regvals, ARRAY_SIZE(mmc_phase_regvals) }, |
| }; |
| |
| static const struct hisi_gate_clock hi3798cv200_gate_clks[] = { |
| /* UART */ |
| { HISTB_UART2_CLK, "clk_uart2", "75m", |
| CLK_SET_RATE_PARENT, 0x68, 4, 0, }, |
| /* I2C */ |
| { HISTB_I2C0_CLK, "clk_i2c0", "clk_apb", |
| CLK_SET_RATE_PARENT, 0x6C, 4, 0, }, |
| { HISTB_I2C1_CLK, "clk_i2c1", "clk_apb", |
| CLK_SET_RATE_PARENT, 0x6C, 8, 0, }, |
| { HISTB_I2C2_CLK, "clk_i2c2", "clk_apb", |
| CLK_SET_RATE_PARENT, 0x6C, 12, 0, }, |
| { HISTB_I2C3_CLK, "clk_i2c3", "clk_apb", |
| CLK_SET_RATE_PARENT, 0x6C, 16, 0, }, |
| { HISTB_I2C4_CLK, "clk_i2c4", "clk_apb", |
| CLK_SET_RATE_PARENT, 0x6C, 20, 0, }, |
| /* SPI */ |
| { HISTB_SPI0_CLK, "clk_spi0", "clk_apb", |
| CLK_SET_RATE_PARENT, 0x70, 0, 0, }, |
| /* SDIO */ |
| { HISTB_SDIO0_BIU_CLK, "clk_sdio0_biu", "200m", |
| CLK_SET_RATE_PARENT, 0x9c, 0, 0, }, |
| { HISTB_SDIO0_CIU_CLK, "clk_sdio0_ciu", "sdio0_mux", |
| CLK_SET_RATE_PARENT, 0x9c, 1, 0, }, |
| /* EMMC */ |
| { HISTB_MMC_BIU_CLK, "clk_mmc_biu", "200m", |
| CLK_SET_RATE_PARENT, 0xa0, 0, 0, }, |
| { HISTB_MMC_CIU_CLK, "clk_mmc_ciu", "mmc_mux", |
| CLK_SET_RATE_PARENT, 0xa0, 1, 0, }, |
| /* PCIE*/ |
| { HISTB_PCIE_BUS_CLK, "clk_pcie_bus", "200m", |
| CLK_SET_RATE_PARENT, 0x18c, 0, 0, }, |
| { HISTB_PCIE_SYS_CLK, "clk_pcie_sys", "100m", |
| CLK_SET_RATE_PARENT, 0x18c, 1, 0, }, |
| { HISTB_PCIE_PIPE_CLK, "clk_pcie_pipe", "250m", |
| CLK_SET_RATE_PARENT, 0x18c, 2, 0, }, |
| { HISTB_PCIE_AUX_CLK, "clk_pcie_aux", "24m", |
| CLK_SET_RATE_PARENT, 0x18c, 3, 0, }, |
| /* Ethernet */ |
| { HI3798CV200_ETH_PUB_CLK, "clk_pub", NULL, |
| CLK_SET_RATE_PARENT, 0xcc, 5, 0, }, |
| { HI3798CV200_ETH_BUS_CLK, "clk_bus", "clk_pub", |
| CLK_SET_RATE_PARENT, 0xcc, 0, 0, }, |
| { HI3798CV200_ETH_BUS0_CLK, "clk_bus_m0", "clk_bus", |
| CLK_SET_RATE_PARENT, 0xcc, 1, 0, }, |
| { HI3798CV200_ETH_BUS1_CLK, "clk_bus_m1", "clk_bus", |
| CLK_SET_RATE_PARENT, 0xcc, 2, 0, }, |
| { HISTB_ETH0_MAC_CLK, "clk_mac0", "clk_bus_m0", |
| CLK_SET_RATE_PARENT, 0xcc, 3, 0, }, |
| { HISTB_ETH0_MACIF_CLK, "clk_macif0", "clk_bus_m0", |
| CLK_SET_RATE_PARENT, 0xcc, 24, 0, }, |
| { HISTB_ETH1_MAC_CLK, "clk_mac1", "clk_bus_m1", |
| CLK_SET_RATE_PARENT, 0xcc, 4, 0, }, |
| { HISTB_ETH1_MACIF_CLK, "clk_macif1", "clk_bus_m1", |
| CLK_SET_RATE_PARENT, 0xcc, 25, 0, }, |
| /* COMBPHY0 */ |
| { HISTB_COMBPHY0_CLK, "clk_combphy0", "combphy0_mux", |
| CLK_SET_RATE_PARENT, 0x188, 0, 0, }, |
| /* COMBPHY1 */ |
| { HISTB_COMBPHY1_CLK, "clk_combphy1", "combphy1_mux", |
| CLK_SET_RATE_PARENT, 0x188, 8, 0, }, |
| /* USB2 */ |
| { HISTB_USB2_BUS_CLK, "clk_u2_bus", "clk_ahb", |
| CLK_SET_RATE_PARENT, 0xb8, 0, 0, }, |
| { HISTB_USB2_PHY_CLK, "clk_u2_phy", "60m", |
| CLK_SET_RATE_PARENT, 0xb8, 4, 0, }, |
| { HISTB_USB2_12M_CLK, "clk_u2_12m", "12m", |
| CLK_SET_RATE_PARENT, 0xb8, 2, 0 }, |
| { HISTB_USB2_48M_CLK, "clk_u2_48m", "48m", |
| CLK_SET_RATE_PARENT, 0xb8, 1, 0 }, |
| { HISTB_USB2_UTMI_CLK, "clk_u2_utmi", "60m", |
| CLK_SET_RATE_PARENT, 0xb8, 5, 0 }, |
| { HISTB_USB2_OTG_UTMI_CLK, "clk_u2_otg_utmi", "60m", |
| CLK_SET_RATE_PARENT, 0xb8, 3, 0 }, |
| { HISTB_USB2_PHY1_REF_CLK, "clk_u2_phy1_ref", "24m", |
| CLK_SET_RATE_PARENT, 0xbc, 0, 0 }, |
| { HISTB_USB2_PHY2_REF_CLK, "clk_u2_phy2_ref", "24m", |
| CLK_SET_RATE_PARENT, 0xbc, 2, 0 }, |
| /* USB3 */ |
| { HISTB_USB3_BUS_CLK, "clk_u3_bus", NULL, |
| CLK_SET_RATE_PARENT, 0xb0, 0, 0 }, |
| { HISTB_USB3_UTMI_CLK, "clk_u3_utmi", NULL, |
| CLK_SET_RATE_PARENT, 0xb0, 4, 0 }, |
| { HISTB_USB3_PIPE_CLK, "clk_u3_pipe", NULL, |
| CLK_SET_RATE_PARENT, 0xb0, 3, 0 }, |
| { HISTB_USB3_SUSPEND_CLK, "clk_u3_suspend", NULL, |
| CLK_SET_RATE_PARENT, 0xb0, 2, 0 }, |
| { HISTB_USB3_BUS_CLK1, "clk_u3_bus1", NULL, |
| CLK_SET_RATE_PARENT, 0xb0, 16, 0 }, |
| { HISTB_USB3_UTMI_CLK1, "clk_u3_utmi1", NULL, |
| CLK_SET_RATE_PARENT, 0xb0, 20, 0 }, |
| { HISTB_USB3_PIPE_CLK1, "clk_u3_pipe1", NULL, |
| CLK_SET_RATE_PARENT, 0xb0, 19, 0 }, |
| { HISTB_USB3_SUSPEND_CLK1, "clk_u3_suspend1", NULL, |
| CLK_SET_RATE_PARENT, 0xb0, 18, 0 }, |
| }; |
| |
| static struct hisi_clock_data *hi3798cv200_clk_register( |
| struct platform_device *pdev) |
| { |
| struct hisi_clock_data *clk_data; |
| int ret; |
| |
| clk_data = hisi_clk_alloc(pdev, HI3798CV200_CRG_NR_CLKS); |
| if (!clk_data) |
| return ERR_PTR(-ENOMEM); |
| |
| /* hisi_phase_clock is resource managed */ |
| ret = hisi_clk_register_phase(&pdev->dev, |
| hi3798cv200_phase_clks, |
| ARRAY_SIZE(hi3798cv200_phase_clks), |
| clk_data); |
| if (ret) |
| return ERR_PTR(ret); |
| |
| ret = hisi_clk_register_fixed_rate(hi3798cv200_fixed_rate_clks, |
| ARRAY_SIZE(hi3798cv200_fixed_rate_clks), |
| clk_data); |
| if (ret) |
| return ERR_PTR(ret); |
| |
| ret = hisi_clk_register_mux(hi3798cv200_mux_clks, |
| ARRAY_SIZE(hi3798cv200_mux_clks), |
| clk_data); |
| if (ret) |
| goto unregister_fixed_rate; |
| |
| ret = hisi_clk_register_gate(hi3798cv200_gate_clks, |
| ARRAY_SIZE(hi3798cv200_gate_clks), |
| clk_data); |
| if (ret) |
| goto unregister_mux; |
| |
| ret = of_clk_add_provider(pdev->dev.of_node, |
| of_clk_src_onecell_get, &clk_data->clk_data); |
| if (ret) |
| goto unregister_gate; |
| |
| return clk_data; |
| |
| unregister_gate: |
| hisi_clk_unregister_gate(hi3798cv200_gate_clks, |
| ARRAY_SIZE(hi3798cv200_gate_clks), |
| clk_data); |
| unregister_mux: |
| hisi_clk_unregister_mux(hi3798cv200_mux_clks, |
| ARRAY_SIZE(hi3798cv200_mux_clks), |
| clk_data); |
| unregister_fixed_rate: |
| hisi_clk_unregister_fixed_rate(hi3798cv200_fixed_rate_clks, |
| ARRAY_SIZE(hi3798cv200_fixed_rate_clks), |
| clk_data); |
| return ERR_PTR(ret); |
| } |
| |
| static void hi3798cv200_clk_unregister(struct platform_device *pdev) |
| { |
| struct hisi_crg_dev *crg = platform_get_drvdata(pdev); |
| |
| of_clk_del_provider(pdev->dev.of_node); |
| |
| hisi_clk_unregister_gate(hi3798cv200_gate_clks, |
| ARRAY_SIZE(hi3798cv200_gate_clks), |
| crg->clk_data); |
| hisi_clk_unregister_mux(hi3798cv200_mux_clks, |
| ARRAY_SIZE(hi3798cv200_mux_clks), |
| crg->clk_data); |
| hisi_clk_unregister_fixed_rate(hi3798cv200_fixed_rate_clks, |
| ARRAY_SIZE(hi3798cv200_fixed_rate_clks), |
| crg->clk_data); |
| } |
| |
| static const struct hisi_crg_funcs hi3798cv200_crg_funcs = { |
| .register_clks = hi3798cv200_clk_register, |
| .unregister_clks = hi3798cv200_clk_unregister, |
| }; |
| |
| /* hi3798CV200 sysctrl CRG */ |
| |
| #define HI3798CV200_SYSCTRL_NR_CLKS 16 |
| |
| static const struct hisi_gate_clock hi3798cv200_sysctrl_gate_clks[] = { |
| { HISTB_IR_CLK, "clk_ir", "24m", |
| CLK_SET_RATE_PARENT, 0x48, 4, 0, }, |
| { HISTB_TIMER01_CLK, "clk_timer01", "24m", |
| CLK_SET_RATE_PARENT, 0x48, 6, 0, }, |
| { HISTB_UART0_CLK, "clk_uart0", "75m", |
| CLK_SET_RATE_PARENT, 0x48, 10, 0, }, |
| }; |
| |
| static struct hisi_clock_data *hi3798cv200_sysctrl_clk_register( |
| struct platform_device *pdev) |
| { |
| struct hisi_clock_data *clk_data; |
| int ret; |
| |
| clk_data = hisi_clk_alloc(pdev, HI3798CV200_SYSCTRL_NR_CLKS); |
| if (!clk_data) |
| return ERR_PTR(-ENOMEM); |
| |
| ret = hisi_clk_register_gate(hi3798cv200_sysctrl_gate_clks, |
| ARRAY_SIZE(hi3798cv200_sysctrl_gate_clks), |
| clk_data); |
| if (ret) |
| return ERR_PTR(ret); |
| |
| ret = of_clk_add_provider(pdev->dev.of_node, |
| of_clk_src_onecell_get, &clk_data->clk_data); |
| if (ret) |
| goto unregister_gate; |
| |
| return clk_data; |
| |
| unregister_gate: |
| hisi_clk_unregister_gate(hi3798cv200_sysctrl_gate_clks, |
| ARRAY_SIZE(hi3798cv200_sysctrl_gate_clks), |
| clk_data); |
| return ERR_PTR(ret); |
| } |
| |
| static void hi3798cv200_sysctrl_clk_unregister(struct platform_device *pdev) |
| { |
| struct hisi_crg_dev *crg = platform_get_drvdata(pdev); |
| |
| of_clk_del_provider(pdev->dev.of_node); |
| |
| hisi_clk_unregister_gate(hi3798cv200_sysctrl_gate_clks, |
| ARRAY_SIZE(hi3798cv200_sysctrl_gate_clks), |
| crg->clk_data); |
| } |
| |
| static const struct hisi_crg_funcs hi3798cv200_sysctrl_funcs = { |
| .register_clks = hi3798cv200_sysctrl_clk_register, |
| .unregister_clks = hi3798cv200_sysctrl_clk_unregister, |
| }; |
| |
| static const struct of_device_id hi3798cv200_crg_match_table[] = { |
| { .compatible = "hisilicon,hi3798cv200-crg", |
| .data = &hi3798cv200_crg_funcs }, |
| { .compatible = "hisilicon,hi3798cv200-sysctrl", |
| .data = &hi3798cv200_sysctrl_funcs }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(of, hi3798cv200_crg_match_table); |
| |
| static int hi3798cv200_crg_probe(struct platform_device *pdev) |
| { |
| struct hisi_crg_dev *crg; |
| |
| crg = devm_kmalloc(&pdev->dev, sizeof(*crg), GFP_KERNEL); |
| if (!crg) |
| return -ENOMEM; |
| |
| crg->funcs = of_device_get_match_data(&pdev->dev); |
| if (!crg->funcs) |
| return -ENOENT; |
| |
| crg->rstc = hisi_reset_init(pdev); |
| if (!crg->rstc) |
| return -ENOMEM; |
| |
| crg->clk_data = crg->funcs->register_clks(pdev); |
| if (IS_ERR(crg->clk_data)) { |
| hisi_reset_exit(crg->rstc); |
| return PTR_ERR(crg->clk_data); |
| } |
| |
| platform_set_drvdata(pdev, crg); |
| return 0; |
| } |
| |
| static void hi3798cv200_crg_remove(struct platform_device *pdev) |
| { |
| struct hisi_crg_dev *crg = platform_get_drvdata(pdev); |
| |
| hisi_reset_exit(crg->rstc); |
| crg->funcs->unregister_clks(pdev); |
| } |
| |
| static struct platform_driver hi3798cv200_crg_driver = { |
| .probe = hi3798cv200_crg_probe, |
| .remove_new = hi3798cv200_crg_remove, |
| .driver = { |
| .name = "hi3798cv200-crg", |
| .of_match_table = hi3798cv200_crg_match_table, |
| }, |
| }; |
| |
| static int __init hi3798cv200_crg_init(void) |
| { |
| return platform_driver_register(&hi3798cv200_crg_driver); |
| } |
| core_initcall(hi3798cv200_crg_init); |
| |
| static void __exit hi3798cv200_crg_exit(void) |
| { |
| platform_driver_unregister(&hi3798cv200_crg_driver); |
| } |
| module_exit(hi3798cv200_crg_exit); |
| |
| MODULE_LICENSE("GPL v2"); |
| MODULE_DESCRIPTION("HiSilicon Hi3798CV200 CRG Driver"); |