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-wpe.c (5865B)


      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
      9#include <dt-bindings/clock/mt8195-clk.h>
     10#include <linux/clk-provider.h>
     11#include <linux/platform_device.h>
     12
     13static const struct mtk_gate_regs wpe_cg_regs = {
     14	.set_ofs = 0x0,
     15	.clr_ofs = 0x0,
     16	.sta_ofs = 0x0,
     17};
     18
     19static const struct mtk_gate_regs wpe_vpp0_cg_regs = {
     20	.set_ofs = 0x58,
     21	.clr_ofs = 0x58,
     22	.sta_ofs = 0x58,
     23};
     24
     25static const struct mtk_gate_regs wpe_vpp1_cg_regs = {
     26	.set_ofs = 0x5c,
     27	.clr_ofs = 0x5c,
     28	.sta_ofs = 0x5c,
     29};
     30
     31#define GATE_WPE(_id, _name, _parent, _shift)			\
     32	GATE_MTK(_id, _name, _parent, &wpe_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
     33
     34#define GATE_WPE_VPP0(_id, _name, _parent, _shift)			\
     35	GATE_MTK(_id, _name, _parent, &wpe_vpp0_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
     36
     37#define GATE_WPE_VPP1(_id, _name, _parent, _shift)			\
     38	GATE_MTK(_id, _name, _parent, &wpe_vpp1_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
     39
     40static const struct mtk_gate wpe_clks[] = {
     41	GATE_WPE(CLK_WPE_VPP0, "wpe_vpp0", "top_wpe_vpp", 16),
     42	GATE_WPE(CLK_WPE_VPP1, "wpe_vpp1", "top_wpe_vpp", 17),
     43	GATE_WPE(CLK_WPE_SMI_LARB7, "wpe_smi_larb7", "top_wpe_vpp", 18),
     44	GATE_WPE(CLK_WPE_SMI_LARB8, "wpe_smi_larb8", "top_wpe_vpp", 19),
     45	GATE_WPE(CLK_WPE_EVENT_TX, "wpe_event_tx", "top_wpe_vpp", 20),
     46	GATE_WPE(CLK_WPE_SMI_LARB7_P, "wpe_smi_larb7_p", "top_wpe_vpp", 24),
     47	GATE_WPE(CLK_WPE_SMI_LARB8_P, "wpe_smi_larb8_p", "top_wpe_vpp", 25),
     48};
     49
     50static const struct mtk_gate wpe_vpp0_clks[] = {
     51	/* WPE_VPP0 */
     52	GATE_WPE_VPP0(CLK_WPE_VPP0_VGEN, "wpe_vpp0_vgen", "top_img", 0),
     53	GATE_WPE_VPP0(CLK_WPE_VPP0_EXT, "wpe_vpp0_ext", "top_img", 1),
     54	GATE_WPE_VPP0(CLK_WPE_VPP0_VFC, "wpe_vpp0_vfc", "top_img", 2),
     55	GATE_WPE_VPP0(CLK_WPE_VPP0_CACH0_TOP, "wpe_vpp0_cach0_top", "top_img", 3),
     56	GATE_WPE_VPP0(CLK_WPE_VPP0_CACH0_DMA, "wpe_vpp0_cach0_dma", "top_img", 4),
     57	GATE_WPE_VPP0(CLK_WPE_VPP0_CACH1_TOP, "wpe_vpp0_cach1_top", "top_img", 5),
     58	GATE_WPE_VPP0(CLK_WPE_VPP0_CACH1_DMA, "wpe_vpp0_cach1_dma", "top_img", 6),
     59	GATE_WPE_VPP0(CLK_WPE_VPP0_CACH2_TOP, "wpe_vpp0_cach2_top", "top_img", 7),
     60	GATE_WPE_VPP0(CLK_WPE_VPP0_CACH2_DMA, "wpe_vpp0_cach2_dma", "top_img", 8),
     61	GATE_WPE_VPP0(CLK_WPE_VPP0_CACH3_TOP, "wpe_vpp0_cach3_top", "top_img", 9),
     62	GATE_WPE_VPP0(CLK_WPE_VPP0_CACH3_DMA, "wpe_vpp0_cach3_dma", "top_img", 10),
     63	GATE_WPE_VPP0(CLK_WPE_VPP0_PSP, "wpe_vpp0_psp", "top_img", 11),
     64	GATE_WPE_VPP0(CLK_WPE_VPP0_PSP2, "wpe_vpp0_psp2", "top_img", 12),
     65	GATE_WPE_VPP0(CLK_WPE_VPP0_SYNC, "wpe_vpp0_sync", "top_img", 13),
     66	GATE_WPE_VPP0(CLK_WPE_VPP0_C24, "wpe_vpp0_c24", "top_img", 14),
     67	GATE_WPE_VPP0(CLK_WPE_VPP0_MDP_CROP, "wpe_vpp0_mdp_crop", "top_img", 15),
     68	GATE_WPE_VPP0(CLK_WPE_VPP0_ISP_CROP, "wpe_vpp0_isp_crop", "top_img", 16),
     69	GATE_WPE_VPP0(CLK_WPE_VPP0_TOP, "wpe_vpp0_top", "top_img", 17),
     70	/* WPE_VPP1 */
     71	GATE_WPE_VPP1(CLK_WPE_VPP0_VECI, "wpe_vpp0_veci", "top_img", 0),
     72	GATE_WPE_VPP1(CLK_WPE_VPP0_VEC2I, "wpe_vpp0_vec2i", "top_img", 1),
     73	GATE_WPE_VPP1(CLK_WPE_VPP0_VEC3I, "wpe_vpp0_vec3i", "top_img", 2),
     74	GATE_WPE_VPP1(CLK_WPE_VPP0_WPEO, "wpe_vpp0_wpeo", "top_img", 3),
     75	GATE_WPE_VPP1(CLK_WPE_VPP0_MSKO, "wpe_vpp0_msko", "top_img", 4),
     76};
     77
     78static const struct mtk_gate wpe_vpp1_clks[] = {
     79	/* WPE_VPP0 */
     80	GATE_WPE_VPP0(CLK_WPE_VPP1_VGEN, "wpe_vpp1_vgen", "top_img", 0),
     81	GATE_WPE_VPP0(CLK_WPE_VPP1_EXT, "wpe_vpp1_ext", "top_img", 1),
     82	GATE_WPE_VPP0(CLK_WPE_VPP1_VFC, "wpe_vpp1_vfc", "top_img", 2),
     83	GATE_WPE_VPP0(CLK_WPE_VPP1_CACH0_TOP, "wpe_vpp1_cach0_top", "top_img", 3),
     84	GATE_WPE_VPP0(CLK_WPE_VPP1_CACH0_DMA, "wpe_vpp1_cach0_dma", "top_img", 4),
     85	GATE_WPE_VPP0(CLK_WPE_VPP1_CACH1_TOP, "wpe_vpp1_cach1_top", "top_img", 5),
     86	GATE_WPE_VPP0(CLK_WPE_VPP1_CACH1_DMA, "wpe_vpp1_cach1_dma", "top_img", 6),
     87	GATE_WPE_VPP0(CLK_WPE_VPP1_CACH2_TOP, "wpe_vpp1_cach2_top", "top_img", 7),
     88	GATE_WPE_VPP0(CLK_WPE_VPP1_CACH2_DMA, "wpe_vpp1_cach2_dma", "top_img", 8),
     89	GATE_WPE_VPP0(CLK_WPE_VPP1_CACH3_TOP, "wpe_vpp1_cach3_top", "top_img", 9),
     90	GATE_WPE_VPP0(CLK_WPE_VPP1_CACH3_DMA, "wpe_vpp1_cach3_dma", "top_img", 10),
     91	GATE_WPE_VPP0(CLK_WPE_VPP1_PSP, "wpe_vpp1_psp", "top_img", 11),
     92	GATE_WPE_VPP0(CLK_WPE_VPP1_PSP2, "wpe_vpp1_psp2", "top_img", 12),
     93	GATE_WPE_VPP0(CLK_WPE_VPP1_SYNC, "wpe_vpp1_sync", "top_img", 13),
     94	GATE_WPE_VPP0(CLK_WPE_VPP1_C24, "wpe_vpp1_c24", "top_img", 14),
     95	GATE_WPE_VPP0(CLK_WPE_VPP1_MDP_CROP, "wpe_vpp1_mdp_crop", "top_img", 15),
     96	GATE_WPE_VPP0(CLK_WPE_VPP1_ISP_CROP, "wpe_vpp1_isp_crop", "top_img", 16),
     97	GATE_WPE_VPP0(CLK_WPE_VPP1_TOP, "wpe_vpp1_top", "top_img", 17),
     98	/* WPE_VPP1 */
     99	GATE_WPE_VPP1(CLK_WPE_VPP1_VECI, "wpe_vpp1_veci", "top_img", 0),
    100	GATE_WPE_VPP1(CLK_WPE_VPP1_VEC2I, "wpe_vpp1_vec2i", "top_img", 1),
    101	GATE_WPE_VPP1(CLK_WPE_VPP1_VEC3I, "wpe_vpp1_vec3i", "top_img", 2),
    102	GATE_WPE_VPP1(CLK_WPE_VPP1_WPEO, "wpe_vpp1_wpeo", "top_img", 3),
    103	GATE_WPE_VPP1(CLK_WPE_VPP1_MSKO, "wpe_vpp1_msko", "top_img", 4),
    104};
    105
    106static const struct mtk_clk_desc wpe_desc = {
    107	.clks = wpe_clks,
    108	.num_clks = ARRAY_SIZE(wpe_clks),
    109};
    110
    111static const struct mtk_clk_desc wpe_vpp0_desc = {
    112	.clks = wpe_vpp0_clks,
    113	.num_clks = ARRAY_SIZE(wpe_vpp0_clks),
    114};
    115
    116static const struct mtk_clk_desc wpe_vpp1_desc = {
    117	.clks = wpe_vpp1_clks,
    118	.num_clks = ARRAY_SIZE(wpe_vpp1_clks),
    119};
    120
    121static const struct of_device_id of_match_clk_mt8195_wpe[] = {
    122	{
    123		.compatible = "mediatek,mt8195-wpesys",
    124		.data = &wpe_desc,
    125	}, {
    126		.compatible = "mediatek,mt8195-wpesys_vpp0",
    127		.data = &wpe_vpp0_desc,
    128	}, {
    129		.compatible = "mediatek,mt8195-wpesys_vpp1",
    130		.data = &wpe_vpp1_desc,
    131	}, {
    132		/* sentinel */
    133	}
    134};
    135
    136static struct platform_driver clk_mt8195_wpe_drv = {
    137	.probe = mtk_clk_simple_probe,
    138	.remove = mtk_clk_simple_remove,
    139	.driver = {
    140		.name = "clk-mt8195-wpe",
    141		.of_match_table = of_match_clk_mt8195_wpe,
    142	},
    143};
    144builtin_platform_driver(clk_mt8195_wpe_drv);