1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2014 MediaTek Inc. 4 * Author: Shunli Wang <shunli.wang@mediatek.com> 5 */ 6 7 #include <linux/clk-provider.h> 8 #include <linux/platform_device.h> 9 10 #include "clk-mtk.h" 11 #include "clk-gate.h" 12 13 #include <dt-bindings/clock/mt2701-clk.h> 14 15 static const struct mtk_gate_regs hif_cg_regs = { 16 .sta_ofs = 0x0030, 17 }; 18 19 #define GATE_HIF(_id, _name, _parent, _shift) \ 20 GATE_MTK(_id, _name, _parent, &hif_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv) 21 22 static const struct mtk_gate hif_clks[] = { 23 GATE_DUMMY(CLK_DUMMY, "hif_dummy"), 24 GATE_HIF(CLK_HIFSYS_USB0PHY, "usb0_phy_clk", "ethpll_500m_ck", 21), 25 GATE_HIF(CLK_HIFSYS_USB1PHY, "usb1_phy_clk", "ethpll_500m_ck", 22), 26 GATE_HIF(CLK_HIFSYS_PCIE0, "pcie0_clk", "ethpll_500m_ck", 24), 27 GATE_HIF(CLK_HIFSYS_PCIE1, "pcie1_clk", "ethpll_500m_ck", 25), 28 GATE_HIF(CLK_HIFSYS_PCIE2, "pcie2_clk", "ethpll_500m_ck", 26), 29 }; 30 31 static u16 rst_ofs[] = { 0x34, }; 32 33 static const struct mtk_clk_rst_desc clk_rst_desc = { 34 .version = MTK_RST_SIMPLE, 35 .rst_bank_ofs = rst_ofs, 36 .rst_bank_nr = ARRAY_SIZE(rst_ofs), 37 }; 38 39 static const struct mtk_clk_desc hif_desc = { 40 .clks = hif_clks, 41 .num_clks = ARRAY_SIZE(hif_clks), 42 .rst_desc = &clk_rst_desc, 43 }; 44 45 static const struct of_device_id of_match_clk_mt2701_hif[] = { 46 { .compatible = "mediatek,mt2701-hifsys", .data = &hif_desc }, 47 { /* sentinel */ } 48 }; 49 MODULE_DEVICE_TABLE(of, of_match_clk_mt2701_hif); 50 51 static struct platform_driver clk_mt2701_hif_drv = { 52 .probe = mtk_clk_simple_probe, 53 .remove_new = mtk_clk_simple_remove, 54 .driver = { 55 .name = "clk-mt2701-hif", 56 .of_match_table = of_match_clk_mt2701_hif, 57 }, 58 }; 59 module_platform_driver(clk_mt2701_hif_drv); 60 61 MODULE_DESCRIPTION("MediaTek MT2701 HIFSYS clocks driver"); 62 MODULE_LICENSE("GPL"); 63