11802d0beSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2e9862118SShunli Wang /* 3e9862118SShunli Wang * Copyright (c) 2014 MediaTek Inc. 4e9862118SShunli Wang * Author: Shunli Wang <shunli.wang@mediatek.com> 5e9862118SShunli Wang */ 6e9862118SShunli Wang 7e9862118SShunli Wang #include <linux/clk-provider.h> 8e9862118SShunli Wang #include <linux/platform_device.h> 9e9862118SShunli Wang 10e9862118SShunli Wang #include "clk-mtk.h" 11e9862118SShunli Wang #include "clk-gate.h" 12e9862118SShunli Wang 13e9862118SShunli Wang #include <dt-bindings/clock/mt2701-clk.h> 14e9862118SShunli Wang 15e9862118SShunli Wang static const struct mtk_gate_regs hif_cg_regs = { 16e9862118SShunli Wang .sta_ofs = 0x0030, 17e9862118SShunli Wang }; 18e9862118SShunli Wang 19e9862118SShunli Wang #define GATE_HIF(_id, _name, _parent, _shift) { \ 20e9862118SShunli Wang .id = _id, \ 21e9862118SShunli Wang .name = _name, \ 22e9862118SShunli Wang .parent_name = _parent, \ 23e9862118SShunli Wang .regs = &hif_cg_regs, \ 24e9862118SShunli Wang .shift = _shift, \ 25e9862118SShunli Wang .ops = &mtk_clk_gate_ops_no_setclr_inv, \ 26e9862118SShunli Wang } 27e9862118SShunli Wang 28e9862118SShunli Wang static const struct mtk_gate hif_clks[] = { 29e9862118SShunli Wang GATE_HIF(CLK_HIFSYS_USB0PHY, "usb0_phy_clk", "ethpll_500m_ck", 21), 30e9862118SShunli Wang GATE_HIF(CLK_HIFSYS_USB1PHY, "usb1_phy_clk", "ethpll_500m_ck", 22), 31e9862118SShunli Wang GATE_HIF(CLK_HIFSYS_PCIE0, "pcie0_clk", "ethpll_500m_ck", 24), 32e9862118SShunli Wang GATE_HIF(CLK_HIFSYS_PCIE1, "pcie1_clk", "ethpll_500m_ck", 25), 33e9862118SShunli Wang GATE_HIF(CLK_HIFSYS_PCIE2, "pcie2_clk", "ethpll_500m_ck", 26), 34e9862118SShunli Wang }; 35e9862118SShunli Wang 36*2d2a2900SRex-BC Chen static const struct mtk_clk_rst_desc clk_rst_desc = { 37*2d2a2900SRex-BC Chen .version = MTK_RST_SIMPLE, 38*2d2a2900SRex-BC Chen .rst_bank_nr = 1, 39*2d2a2900SRex-BC Chen .reg_ofs = 0x34, 40*2d2a2900SRex-BC Chen }; 41*2d2a2900SRex-BC Chen 42e9862118SShunli Wang static const struct of_device_id of_match_clk_mt2701_hif[] = { 43e9862118SShunli Wang { .compatible = "mediatek,mt2701-hifsys", }, 44e9862118SShunli Wang {} 45e9862118SShunli Wang }; 46e9862118SShunli Wang 47e9862118SShunli Wang static int clk_mt2701_hif_probe(struct platform_device *pdev) 48e9862118SShunli Wang { 49609cc5e1SChen-Yu Tsai struct clk_hw_onecell_data *clk_data; 50e9862118SShunli Wang int r; 51e9862118SShunli Wang struct device_node *node = pdev->dev.of_node; 52e9862118SShunli Wang 53e9862118SShunli Wang clk_data = mtk_alloc_clk_data(CLK_HIFSYS_NR); 54e9862118SShunli Wang 55e9862118SShunli Wang mtk_clk_register_gates(node, hif_clks, ARRAY_SIZE(hif_clks), 56e9862118SShunli Wang clk_data); 57e9862118SShunli Wang 58609cc5e1SChen-Yu Tsai r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); 598c1ee96aSShunli Wang if (r) { 60e9862118SShunli Wang dev_err(&pdev->dev, 61e9862118SShunli Wang "could not register clock provider: %s: %d\n", 62e9862118SShunli Wang pdev->name, r); 63e9862118SShunli Wang return r; 64e9862118SShunli Wang } 65e9862118SShunli Wang 66*2d2a2900SRex-BC Chen mtk_register_reset_controller(node, &clk_rst_desc); 678c1ee96aSShunli Wang 688c1ee96aSShunli Wang return 0; 698c1ee96aSShunli Wang } 708c1ee96aSShunli Wang 71e9862118SShunli Wang static struct platform_driver clk_mt2701_hif_drv = { 72e9862118SShunli Wang .probe = clk_mt2701_hif_probe, 73e9862118SShunli Wang .driver = { 74e9862118SShunli Wang .name = "clk-mt2701-hif", 75e9862118SShunli Wang .of_match_table = of_match_clk_mt2701_hif, 76e9862118SShunli Wang }, 77e9862118SShunli Wang }; 78e9862118SShunli Wang 79e9862118SShunli Wang builtin_platform_driver(clk_mt2701_hif_drv); 80