drivers/clk/mediatek/clk-mt8186-apmixedsys.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 //
   3 // Copyright (c) 2022 MediaTek Inc.
   4 // Author: Chun-Jie Chen <[email protected]>
   5
   6 #include <linux/clk-provider.h>
   7 #include <linux/platform_device.h>
   8 #include <dt-bindings/clock/mt8186-clk.h>
   9
  10 #include "clk-mtk.h"
  11 #include "clk-pll.h"
  12 #include "clk-pllfh.h"
  13
  14 #define MT8186_PLL_FMAX         (3800UL * MHZ)
  15 #define MT8186_PLL_FMIN         (1500UL * MHZ)
  16 #define MT8186_INTEGER_BITS     (8)
  17
  18 #define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags,               \
  19             _rst_bar_mask, _pcwbits, _pd_reg, _pd_shift,                \
  20             _tuner_reg, _tuner_en_reg, _tuner_en_bit,                   \
  21             _pcw_reg) {                                                 \
  22                 .id = _id,                                              \
  23                 .name = _name,                                          \
  24                 .reg = _reg,                                            \
  25                 .pwr_reg = _pwr_reg,                                    \
  26                 .en_mask = _en_mask,                                    \
  27                 .flags = _flags,                                        \
  28                 .rst_bar_mask = _rst_bar_mask,                          \
  29                 .fmax = MT8186_PLL_FMAX,                                \
  30                 .fmin = MT8186_PLL_FMIN,                                \
  31                 .pcwbits = _pcwbits,                                    \
  32                 .pcwibits = MT8186_INTEGER_BITS,                        \
  33                 .pd_reg = _pd_reg,                                      \
  34                 .pd_shift = _pd_shift,                                  \
  35                 .tuner_reg = _tuner_reg,                                \
  36                 .tuner_en_reg = _tuner_en_reg,                          \
  37                 .tuner_en_bit = _tuner_en_bit,                          \
  38                 .pcw_reg = _pcw_reg,                                    \
  39                 .pcw_shift = 0,                                         \
  40                 .pcw_chg_reg = 0,                                       \
  41                 .en_reg = 0,                                            \
  42                 .pll_en_bit = 0,                                        \
  43         }
  44
  45 static const struct mtk_pll_data plls[] = {
  46         /*
  47          * armpll_ll/armpll_bl/ccipll are main clock source of AP MCU,
  48          * should not be closed in Linux world.
  49          */
  50         PLL(CLK_APMIXED_ARMPLL_LL, "armpll_ll", 0x0204, 0x0210, 0,
  51             PLL_AO, 0, 22, 0x0208, 24, 0, 0, 0, 0x0208),
  52         PLL(CLK_APMIXED_ARMPLL_BL, "armpll_bl", 0x0214, 0x0220, 0,
  53             PLL_AO, 0, 22, 0x0218, 24, 0, 0, 0, 0x0218),
  54         PLL(CLK_APMIXED_CCIPLL, "ccipll", 0x0224, 0x0230, 0,
  55             PLL_AO, 0, 22, 0x0228, 24, 0, 0, 0, 0x0228),
  56         PLL(CLK_APMIXED_MAINPLL, "mainpll", 0x0244, 0x0250, 0xff000000,
  57             HAVE_RST_BAR, BIT(23), 22, 0x0248, 24, 0, 0, 0, 0x0248),
  58         PLL(CLK_APMIXED_UNIV2PLL, "univ2pll", 0x0324, 0x0330, 0xff000000,
  59             HAVE_RST_BAR, BIT(23), 22, 0x0328, 24, 0, 0, 0, 0x0328),
  60         PLL(CLK_APMIXED_MSDCPLL, "msdcpll", 0x038C, 0x0398, 0,
  61             0, 0, 22, 0x0390, 24, 0, 0, 0, 0x0390),
  62         PLL(CLK_APMIXED_MMPLL, "mmpll", 0x0254, 0x0260, 0,
  63             0, 0, 22, 0x0258, 24, 0, 0, 0, 0x0258),
  64         PLL(CLK_APMIXED_NNAPLL, "nnapll", 0x035C, 0x0368, 0,
  65             0, 0, 22, 0x0360, 24, 0, 0, 0, 0x0360),
  66         PLL(CLK_APMIXED_NNA2PLL, "nna2pll", 0x036C, 0x0378, 0,
  67             0, 0, 22, 0x0370, 24, 0, 0, 0, 0x0370),
  68         PLL(CLK_APMIXED_ADSPPLL, "adsppll", 0x0304, 0x0310, 0,
  69             0, 0, 22, 0x0308, 24, 0, 0, 0, 0x0308),
  70         PLL(CLK_APMIXED_MFGPLL, "mfgpll", 0x0314, 0x0320, 0,
  71             0, 0, 22, 0x0318, 24, 0, 0, 0, 0x0318),
  72         PLL(CLK_APMIXED_TVDPLL, "tvdpll", 0x0264, 0x0270, 0,
  73             0, 0, 22, 0x0268, 24, 0, 0, 0, 0x0268),
  74         PLL(CLK_APMIXED_APLL1, "apll1", 0x0334, 0x0344, 0,
  75             0, 0, 32, 0x0338, 24, 0x0040, 0x000C, 0, 0x033C),
  76         PLL(CLK_APMIXED_APLL2, "apll2", 0x0348, 0x0358, 0,
  77             0, 0, 32, 0x034C, 24, 0x0044, 0x000C, 5, 0x0350),
  78 };
  79
  80 enum fh_pll_id {
  81         FH_ARMPLL_LL,
  82         FH_ARMPLL_BL,
  83         FH_CCIPLL,
  84         FH_MAINPLL,
  85         FH_MMPLL,
  86         FH_TVDPLL,
  87         FH_RESERVE6,
  88         FH_ADSPPLL,
  89         FH_MFGPLL,
  90         FH_NNAPLL,
  91         FH_NNA2PLL,
  92         FH_MSDCPLL,
  93         FH_RESERVE12,
  94         FH_NR_FH,
  95 };
  96
  97 #define FH(_pllid, _fhid, _offset) {                                    \
  98                 .data = {                                               \
  99                         .pll_id = _pllid,                               \
 100                         .fh_id = _fhid,                                 \
 101                         .fhx_offset = _offset,                          \
 102                         .dds_mask = GENMASK(21, 0),                     \
 103                         .slope0_value = 0x6003c97,                      \
 104                         .slope1_value = 0x6003c97,                      \
 105                         .sfstrx_en = BIT(2),                            \
 106                         .frddsx_en = BIT(1),                            \
 107                         .fhctlx_en = BIT(0),                            \
 108                         .tgl_org = BIT(31),                             \
 109                         .dvfs_tri = BIT(31),                            \
 110                         .pcwchg = BIT(31),                              \
 111                         .dt_val = 0x0,                                  \
 112                         .df_val = 0x9,                                  \
 113                         .updnlmt_shft = 16,                             \
 114                         .msk_frddsx_dys = GENMASK(23, 20),              \
 115                         .msk_frddsx_dts = GENMASK(19, 16),              \
 116                 },                                                      \
 117         }
 118
 119 static struct mtk_pllfh_data pllfhs[] = {
 120         FH(CLK_APMIXED_ARMPLL_LL, FH_ARMPLL_LL, 0x003C),
 121         FH(CLK_APMIXED_ARMPLL_BL, FH_ARMPLL_BL, 0x0050),
 122         FH(CLK_APMIXED_CCIPLL, FH_CCIPLL, 0x0064),
 123         FH(CLK_APMIXED_MAINPLL, FH_MAINPLL, 0x0078),
 124         FH(CLK_APMIXED_MMPLL, FH_MMPLL, 0x008C),
 125         FH(CLK_APMIXED_TVDPLL, FH_TVDPLL, 0x00A0),
 126         FH(CLK_APMIXED_ADSPPLL, FH_ADSPPLL, 0x00C8),
 127         FH(CLK_APMIXED_MFGPLL, FH_MFGPLL, 0x00DC),
 128         FH(CLK_APMIXED_NNAPLL, FH_NNAPLL, 0x00F0),
 129         FH(CLK_APMIXED_NNA2PLL, FH_NNA2PLL, 0x0104),
 130         FH(CLK_APMIXED_MSDCPLL, FH_MSDCPLL, 0x0118),
 131 };
 132
 133 static const struct of_device_id of_match_clk_mt8186_apmixed[] = {
 134         { .compatible = "mediatek,mt8186-apmixedsys", },
 135         {}
 136 };
 137
 138 static int clk_mt8186_apmixed_probe(struct platform_device *pdev)
 139 {
 140         struct clk_hw_onecell_data *clk_data;
 141         struct device_node *node = pdev->dev.of_node;
 142         const u8 *fhctl_node = "mediatek,mt8186-fhctl";
 143         int r;
 144
 145         clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK);
 146         if (!clk_data)
 147                 return -ENOMEM;
 148
 149         fhctl_parse_dt(fhctl_node, pllfhs, ARRAY_SIZE(pllfhs));
 150
 151         r = mtk_clk_register_pllfhs(node, plls, ARRAY_SIZE(plls),
 152                                     pllfhs, ARRAY_SIZE(pllfhs), clk_data);
 153         if (r)
 154                 goto free_apmixed_data;
 155
 156         r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
 157         if (r)
 158                 goto unregister_plls;
 159
 160         platform_set_drvdata(pdev, clk_data);
 161
 162         return r;
 163
 164 unregister_plls:
 165         mtk_clk_unregister_pllfhs(plls, ARRAY_SIZE(plls), pllfhs,
 166                                   ARRAY_SIZE(pllfhs), clk_data);
 167 free_apmixed_data:
 168         mtk_free_clk_data(clk_data);
 169         return r;
 170 }
 171
 172 static int clk_mt8186_apmixed_remove(struct platform_device *pdev)
 173 {
 174         struct device_node *node = pdev->dev.of_node;
 175         struct clk_hw_onecell_data *clk_data = platform_get_drvdata(pdev);
 176
 177         of_clk_del_provider(node);
 178         mtk_clk_unregister_pllfhs(plls, ARRAY_SIZE(plls), pllfhs,
 179                                   ARRAY_SIZE(pllfhs), clk_data);
 180         mtk_free_clk_data(clk_data);
 181
 182         return 0;
 183 }
 184
 185 static struct platform_driver clk_mt8186_apmixed_drv = {
 186         .probe = clk_mt8186_apmixed_probe,
 187         .remove = clk_mt8186_apmixed_remove,
 188         .driver = {
 189                 .name = "clk-mt8186-apmixed",
 190                 .of_match_table = of_match_clk_mt8186_apmixed,
 191         },
 192 };
 193 builtin_platform_driver(clk_mt8186_apmixed_drv);