cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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clk-mt8195-apmixedsys.c (6226B)


      1// SPDX-License-Identifier: GPL-2.0-only
      2//
      3// Copyright (c) 2021 MediaTek Inc.
      4// Author: Chun-Jie Chen <chun-jie.chen@mediatek.com>
      5
      6#include "clk-gate.h"
      7#include "clk-mtk.h"
      8#include "clk-pll.h"
      9
     10#include <dt-bindings/clock/mt8195-clk.h>
     11#include <linux/of_device.h>
     12#include <linux/platform_device.h>
     13
     14static const struct mtk_gate_regs apmixed_cg_regs = {
     15	.set_ofs = 0x8,
     16	.clr_ofs = 0x8,
     17	.sta_ofs = 0x8,
     18};
     19
     20#define GATE_APMIXED(_id, _name, _parent, _shift)			\
     21	GATE_MTK(_id, _name, _parent, &apmixed_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
     22
     23static const struct mtk_gate apmixed_clks[] = {
     24	GATE_APMIXED(CLK_APMIXED_PLL_SSUSB26M, "pll_ssusb26m", "clk26m", 1),
     25};
     26
     27#define MT8195_PLL_FMAX		(3800UL * MHZ)
     28#define MT8195_PLL_FMIN		(1500UL * MHZ)
     29#define MT8195_INTEGER_BITS	8
     30
     31#define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags,		\
     32	    _rst_bar_mask, _pcwbits, _pd_reg, _pd_shift,		\
     33	    _tuner_reg, _tuner_en_reg, _tuner_en_bit,			\
     34	    _pcw_reg, _pcw_shift, _pcw_chg_reg,				\
     35	    _en_reg, _pll_en_bit) {					\
     36		.id = _id,						\
     37		.name = _name,						\
     38		.reg = _reg,						\
     39		.pwr_reg = _pwr_reg,					\
     40		.en_mask = _en_mask,					\
     41		.flags = _flags,					\
     42		.rst_bar_mask = _rst_bar_mask,				\
     43		.fmax = MT8195_PLL_FMAX,				\
     44		.fmin = MT8195_PLL_FMIN,				\
     45		.pcwbits = _pcwbits,					\
     46		.pcwibits = MT8195_INTEGER_BITS,			\
     47		.pd_reg = _pd_reg,					\
     48		.pd_shift = _pd_shift,					\
     49		.tuner_reg = _tuner_reg,				\
     50		.tuner_en_reg = _tuner_en_reg,				\
     51		.tuner_en_bit = _tuner_en_bit,				\
     52		.pcw_reg = _pcw_reg,					\
     53		.pcw_shift = _pcw_shift,				\
     54		.pcw_chg_reg = _pcw_chg_reg,				\
     55		.en_reg = _en_reg,					\
     56		.pll_en_bit = _pll_en_bit,				\
     57	}
     58
     59static const struct mtk_pll_data plls[] = {
     60	PLL(CLK_APMIXED_NNAPLL, "nnapll", 0x0390, 0x03a0, 0,
     61	    0, 0, 22, 0x0398, 24, 0, 0, 0, 0x0398, 0, 0x0398, 0, 9),
     62	PLL(CLK_APMIXED_RESPLL, "respll", 0x0190, 0x0320, 0,
     63	    0, 0, 22, 0x0198, 24, 0, 0, 0, 0x0198, 0, 0x0198, 0, 9),
     64	PLL(CLK_APMIXED_ETHPLL, "ethpll", 0x0360, 0x0370, 0,
     65	    0, 0, 22, 0x0368, 24, 0, 0, 0, 0x0368, 0, 0x0368, 0, 9),
     66	PLL(CLK_APMIXED_MSDCPLL, "msdcpll", 0x0710, 0x0720, 0,
     67	    0, 0, 22, 0x0718, 24, 0, 0, 0, 0x0718, 0, 0x0718, 0, 9),
     68	PLL(CLK_APMIXED_TVDPLL1, "tvdpll1", 0x00a0, 0x00b0, 0,
     69	    0, 0, 22, 0x00a8, 24, 0, 0, 0, 0x00a8, 0, 0x00a8, 0, 9),
     70	PLL(CLK_APMIXED_TVDPLL2, "tvdpll2", 0x00c0, 0x00d0, 0,
     71	    0, 0, 22, 0x00c8, 24, 0, 0, 0, 0x00c8, 0, 0x00c8, 0, 9),
     72	PLL(CLK_APMIXED_MMPLL, "mmpll", 0x00e0, 0x00f0, 0xff000000,
     73	    HAVE_RST_BAR, BIT(23), 22, 0x00e8, 24, 0, 0, 0, 0x00e8, 0, 0x00e8, 0, 9),
     74	PLL(CLK_APMIXED_MAINPLL, "mainpll", 0x01d0, 0x01e0, 0xff000000,
     75	    HAVE_RST_BAR, BIT(23), 22, 0x01d8, 24, 0, 0, 0, 0x01d8, 0, 0x01d8, 0, 9),
     76	PLL(CLK_APMIXED_VDECPLL, "vdecpll", 0x0890, 0x08a0, 0,
     77	    0, 0, 22, 0x0898, 24, 0, 0, 0, 0x0898, 0, 0x0898, 0, 9),
     78	PLL(CLK_APMIXED_IMGPLL, "imgpll", 0x0100, 0x0110, 0,
     79	    0, 0, 22, 0x0108, 24, 0, 0, 0, 0x0108, 0, 0x0108, 0, 9),
     80	PLL(CLK_APMIXED_UNIVPLL, "univpll", 0x01f0, 0x0700, 0xff000000,
     81	    HAVE_RST_BAR, BIT(23), 22, 0x01f8, 24, 0, 0, 0, 0x01f8, 0, 0x01f8, 0, 9),
     82	PLL(CLK_APMIXED_HDMIPLL1, "hdmipll1", 0x08c0, 0x08d0, 0,
     83	    0, 0, 22, 0x08c8, 24, 0, 0, 0, 0x08c8, 0, 0x08c8, 0, 9),
     84	PLL(CLK_APMIXED_HDMIPLL2, "hdmipll2", 0x0870, 0x0880, 0,
     85	    0, 0, 22, 0x0878, 24, 0, 0, 0, 0x0878, 0, 0x0878, 0, 9),
     86	PLL(CLK_APMIXED_HDMIRX_APLL, "hdmirx_apll", 0x08e0, 0x0dd4, 0,
     87	    0, 0, 32, 0x08e8, 24, 0, 0, 0, 0x08ec, 0, 0x08e8, 0, 9),
     88	PLL(CLK_APMIXED_USB1PLL, "usb1pll", 0x01a0, 0x01b0, 0,
     89	    0, 0, 22, 0x01a8, 24, 0, 0, 0, 0x01a8, 0, 0x01a8, 0, 9),
     90	PLL(CLK_APMIXED_ADSPPLL, "adsppll", 0x07e0, 0x07f0, 0,
     91	    0, 0, 22, 0x07e8, 24, 0, 0, 0, 0x07e8, 0, 0x07e8, 0, 9),
     92	PLL(CLK_APMIXED_APLL1, "apll1", 0x07c0, 0x0dc0, 0,
     93	    0, 0, 32, 0x07c8, 24, 0x0470, 0x0000, 12, 0x07cc, 0, 0x07c8, 0, 9),
     94	PLL(CLK_APMIXED_APLL2, "apll2", 0x0780, 0x0dc4, 0,
     95	    0, 0, 32, 0x0788, 24, 0x0474, 0x0000, 13, 0x078c, 0, 0x0788, 0, 9),
     96	PLL(CLK_APMIXED_APLL3, "apll3", 0x0760, 0x0dc8, 0,
     97	    0, 0, 32, 0x0768, 24, 0x0478, 0x0000, 14, 0x076c, 0, 0x0768, 0, 9),
     98	PLL(CLK_APMIXED_APLL4, "apll4", 0x0740, 0x0dcc, 0,
     99	    0, 0, 32, 0x0748, 24, 0x047C, 0x0000, 15, 0x074c, 0, 0x0748, 0, 9),
    100	PLL(CLK_APMIXED_APLL5, "apll5", 0x07a0, 0x0dd0, 0x100000,
    101	    0, 0, 32, 0x07a8, 24, 0x0480, 0x0000, 16, 0x07ac, 0, 0x07a8, 0, 9),
    102	PLL(CLK_APMIXED_MFGPLL, "mfgpll", 0x0340, 0x0350, 0,
    103	    0, 0, 22, 0x0348, 24, 0, 0, 0, 0x0348, 0, 0x0348, 0, 9),
    104	PLL(CLK_APMIXED_DGIPLL, "dgipll", 0x0150, 0x0160, 0,
    105	    0, 0, 22, 0x0158, 24, 0, 0, 0, 0x0158, 0, 0x0158, 0, 9),
    106};
    107
    108static const struct of_device_id of_match_clk_mt8195_apmixed[] = {
    109	{ .compatible = "mediatek,mt8195-apmixedsys", },
    110	{}
    111};
    112
    113static int clk_mt8195_apmixed_probe(struct platform_device *pdev)
    114{
    115	struct clk_hw_onecell_data *clk_data;
    116	struct device_node *node = pdev->dev.of_node;
    117	int r;
    118
    119	clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK);
    120	if (!clk_data)
    121		return -ENOMEM;
    122
    123	r = mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls), clk_data);
    124	if (r)
    125		goto free_apmixed_data;
    126
    127	r = mtk_clk_register_gates(node, apmixed_clks, ARRAY_SIZE(apmixed_clks), clk_data);
    128	if (r)
    129		goto unregister_plls;
    130
    131	r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
    132	if (r)
    133		goto unregister_gates;
    134
    135	platform_set_drvdata(pdev, clk_data);
    136
    137	return r;
    138
    139unregister_gates:
    140	mtk_clk_unregister_gates(apmixed_clks, ARRAY_SIZE(apmixed_clks), clk_data);
    141unregister_plls:
    142	mtk_clk_unregister_plls(plls, ARRAY_SIZE(plls), clk_data);
    143free_apmixed_data:
    144	mtk_free_clk_data(clk_data);
    145	return r;
    146}
    147
    148static int clk_mt8195_apmixed_remove(struct platform_device *pdev)
    149{
    150	struct device_node *node = pdev->dev.of_node;
    151	struct clk_hw_onecell_data *clk_data = platform_get_drvdata(pdev);
    152
    153	of_clk_del_provider(node);
    154	mtk_clk_unregister_gates(apmixed_clks, ARRAY_SIZE(apmixed_clks), clk_data);
    155	mtk_clk_unregister_plls(plls, ARRAY_SIZE(plls), clk_data);
    156	mtk_free_clk_data(clk_data);
    157
    158	return 0;
    159}
    160
    161static struct platform_driver clk_mt8195_apmixed_drv = {
    162	.probe = clk_mt8195_apmixed_probe,
    163	.remove = clk_mt8195_apmixed_remove,
    164	.driver = {
    165		.name = "clk-mt8195-apmixed",
    166		.of_match_table = of_match_clk_mt8195_apmixed,
    167	},
    168};
    169builtin_platform_driver(clk_mt8195_apmixed_drv);