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