drivers/clk/mediatek/clk-mt8192-apmixedsys.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (c) 2021 MediaTek Inc.
   4  *               Chun-Jie Chen <chun-jie.chen@mediatek.com>
   5  * Copyright (c) 2023 Collabora Ltd.
   6  *               AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
   7  */
   8
   9 #include <dt-bindings/clock/mt8192-clk.h>
  10 #include <linux/module.h>
  11 #include <linux/platform_device.h>
  12 #include "clk-fhctl.h"
  13 #include "clk-gate.h"
  14 #include "clk-mtk.h"
  15 #include "clk-pll.h"
  16 #include "clk-pllfh.h"
  17
  18 static const struct mtk_gate_regs apmixed_cg_regs = {
  19         .set_ofs = 0x14,
  20         .clr_ofs = 0x14,
  21         .sta_ofs = 0x14,
  22 };
  23
  24 #define GATE_APMIXED(_id, _name, _parent, _shift)       \
  25         GATE_MTK(_id, _name, _parent, &apmixed_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
  26
  27 static const struct mtk_gate apmixed_clks[] = {
  28         GATE_APMIXED(CLK_APMIXED_MIPID26M, "mipid26m", "clk26m", 16),
  29 };
  30
  31 #define MT8192_PLL_FMAX         (3800UL * MHZ)
  32 #define MT8192_PLL_FMIN         (1500UL * MHZ)
  33 #define MT8192_INTEGER_BITS     8
  34
  35 #define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags,               \
  36                         _rst_bar_mask, _pcwbits, _pd_reg, _pd_shift,    \
  37                         _tuner_reg, _tuner_en_reg, _tuner_en_bit,       \
  38                         _pcw_reg, _pcw_shift, _pcw_chg_reg,             \
  39                         _en_reg, _pll_en_bit) {                         \
  40                 .id = _id,                                              \
  41                 .name = _name,                                          \
  42                 .reg = _reg,                                            \
  43                 .pwr_reg = _pwr_reg,                                    \
  44                 .en_mask = _en_mask,                                    \
  45                 .flags = _flags,                                        \
  46                 .rst_bar_mask = _rst_bar_mask,                          \
  47                 .fmax = MT8192_PLL_FMAX,                                \
  48                 .fmin = MT8192_PLL_FMIN,                                \
  49                 .pcwbits = _pcwbits,                                    \
  50                 .pcwibits = MT8192_INTEGER_BITS,                        \
  51                 .pd_reg = _pd_reg,                                      \
  52                 .pd_shift = _pd_shift,                                  \
  53                 .tuner_reg = _tuner_reg,                                \
  54                 .tuner_en_reg = _tuner_en_reg,                          \
  55                 .tuner_en_bit = _tuner_en_bit,                          \
  56                 .pcw_reg = _pcw_reg,                                    \
  57                 .pcw_shift = _pcw_shift,                                \
  58                 .pcw_chg_reg = _pcw_chg_reg,                            \
  59                 .en_reg = _en_reg,                                      \
  60                 .pll_en_bit = _pll_en_bit,                              \
  61         }
  62
  63 #define PLL_B(_id, _name, _reg, _pwr_reg, _en_mask, _flags,             \
  64                         _rst_bar_mask, _pcwbits, _pd_reg, _pd_shift,    \
  65                         _tuner_reg, _tuner_en_reg, _tuner_en_bit,       \
  66                         _pcw_reg, _pcw_shift)                           \
  67                 PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags,       \
  68                         _rst_bar_mask, _pcwbits, _pd_reg, _pd_shift,    \
  69                         _tuner_reg, _tuner_en_reg, _tuner_en_bit,       \
  70                         _pcw_reg, _pcw_shift, 0, 0, 0)
  71
  72 static const struct mtk_pll_data plls[] = {
  73         PLL_B(CLK_APMIXED_MAINPLL, "mainpll", 0x0340, 0x034c, 0xff000000,
  74               HAVE_RST_BAR, BIT(23), 22, 0x0344, 24, 0, 0, 0, 0x0344, 0),
  75         PLL_B(CLK_APMIXED_UNIVPLL, "univpll", 0x0308, 0x0314, 0xff000000,
  76               HAVE_RST_BAR, BIT(23), 22, 0x030c, 24, 0, 0, 0, 0x030c, 0),
  77         PLL(CLK_APMIXED_USBPLL, "usbpll", 0x03c4, 0x03cc, 0x00000000,
  78             0, 0, 22, 0x03c4, 24, 0, 0, 0, 0x03c4, 0, 0x03c4, 0x03cc, 2),
  79         PLL_B(CLK_APMIXED_MSDCPLL, "msdcpll", 0x0350, 0x035c, 0x00000000,
  80               0, 0, 22, 0x0354, 24, 0, 0, 0, 0x0354, 0),
  81         PLL_B(CLK_APMIXED_MMPLL, "mmpll", 0x0360, 0x036c, 0xff000000,
  82               HAVE_RST_BAR, BIT(23), 22, 0x0364, 24, 0, 0, 0, 0x0364, 0),
  83         PLL_B(CLK_APMIXED_ADSPPLL, "adsppll", 0x0370, 0x037c, 0xff000000,
  84               HAVE_RST_BAR, BIT(23), 22, 0x0374, 24, 0, 0, 0, 0x0374, 0),
  85         PLL_B(CLK_APMIXED_MFGPLL, "mfgpll", 0x0268, 0x0274, 0x00000000,
  86               0, 0, 22, 0x026c, 24, 0, 0, 0, 0x026c, 0),
  87         PLL_B(CLK_APMIXED_TVDPLL, "tvdpll", 0x0380, 0x038c, 0x00000000,
  88               0, 0, 22, 0x0384, 24, 0, 0, 0, 0x0384, 0),
  89         PLL_B(CLK_APMIXED_APLL1, "apll1", 0x0318, 0x0328, 0x00000000,
  90               0, 0, 32, 0x031c, 24, 0x0040, 0x000c, 0, 0x0320, 0),
  91         PLL_B(CLK_APMIXED_APLL2, "apll2", 0x032c, 0x033c, 0x00000000,
  92               0, 0, 32, 0x0330, 24, 0, 0, 0, 0x0334, 0),
  93 };
  94
  95 enum fh_pll_id {
  96         FH_ARMPLL_LL,
  97         FH_ARMPLL_BL0,
  98         FH_ARMPLL_BL1,
  99         FH_ARMPLL_BL2,
 100         FH_ARMPLL_BL3,
 101         FH_CCIPLL,
 102         FH_MFGPLL,
 103         FH_MEMPLL,
 104         FH_MPLL,
 105         FH_MMPLL,
 106         FH_MAINPLL,
 107         FH_MSDCPLL,
 108         FH_ADSPPLL,
 109         FH_APUPLL,
 110         FH_TVDPLL,
 111         FH_NR_FH,
 112 };
 113
 114 #define FH(_pllid, _fhid, _offset) {                                    \
 115                 .data = {                                               \
 116                         .pll_id = _pllid,                               \
 117                         .fh_id = _fhid,                                 \
 118                         .fh_ver = FHCTL_PLLFH_V2,                       \
 119                         .fhx_offset = _offset,                          \
 120                         .dds_mask = GENMASK(21, 0),                     \
 121                         .slope0_value = 0x6003c97,                      \
 122                         .slope1_value = 0x6003c97,                      \
 123                         .sfstrx_en = BIT(2),                            \
 124                         .frddsx_en = BIT(1),                            \
 125                         .fhctlx_en = BIT(0),                            \
 126                         .tgl_org = BIT(31),                             \
 127                         .dvfs_tri = BIT(31),                            \
 128                         .pcwchg = BIT(31),                              \
 129                         .dt_val = 0x0,                                  \
 130                         .df_val = 0x9,                                  \
 131                         .updnlmt_shft = 16,                             \
 132                         .msk_frddsx_dys = GENMASK(23, 20),              \
 133                         .msk_frddsx_dts = GENMASK(19, 16),              \
 134                 },                                                      \
 135         }
 136
 137 static struct mtk_pllfh_data pllfhs[] = {
 138         FH(CLK_APMIXED_MFGPLL, FH_MFGPLL, 0xb4),
 139         FH(CLK_APMIXED_MMPLL, FH_MMPLL, 0xf0),
 140         FH(CLK_APMIXED_MAINPLL, FH_MAINPLL, 0x104),
 141         FH(CLK_APMIXED_MSDCPLL, FH_MSDCPLL, 0x118),
 142         FH(CLK_APMIXED_ADSPPLL, FH_ADSPPLL, 0x12c),
 143         FH(CLK_APMIXED_TVDPLL, FH_TVDPLL, 0x154),
 144 };
 145
 146 static const struct of_device_id of_match_clk_mt8192_apmixed[] = {
 147         { .compatible = "mediatek,mt8192-apmixedsys" },
 148         { /* sentinel */ }
 149 };
 150 MODULE_DEVICE_TABLE(of, of_match_clk_mt8192_apmixed);
 151
 152 static int clk_mt8192_apmixed_probe(struct platform_device *pdev)
 153 {
 154         struct clk_hw_onecell_data *clk_data;
 155         struct device_node *node = pdev->dev.of_node;
 156         const u8 *fhctl_node = "mediatek,mt8192-fhctl";
 157         int r;
 158
 159         clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK);
 160         if (!clk_data)
 161                 return -ENOMEM;
 162
 163         fhctl_parse_dt(fhctl_node, pllfhs, ARRAY_SIZE(pllfhs));
 164
 165         r = mtk_clk_register_pllfhs(node, plls, ARRAY_SIZE(plls),
 166                                     pllfhs, ARRAY_SIZE(pllfhs), clk_data);
 167         if (r)
 168                 goto free_clk_data;
 169
 170         r = mtk_clk_register_gates(&pdev->dev, node, apmixed_clks,
 171                                    ARRAY_SIZE(apmixed_clks), clk_data);
 172         if (r)
 173                 goto unregister_plls;
 174
 175         r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
 176         if (r)
 177                 goto unregister_gates;
 178
 179         return r;
 180
 181 unregister_gates:
 182         mtk_clk_unregister_gates(apmixed_clks, ARRAY_SIZE(apmixed_clks), clk_data);
 183 unregister_plls:
 184         mtk_clk_unregister_pllfhs(plls, ARRAY_SIZE(plls), pllfhs,
 185                                   ARRAY_SIZE(pllfhs), clk_data);
 186 free_clk_data:
 187         mtk_free_clk_data(clk_data);
 188         return r;
 189 }
 190
 191 static void clk_mt8192_apmixed_remove(struct platform_device *pdev)
 192 {
 193         struct device_node *node = pdev->dev.of_node;
 194         struct clk_hw_onecell_data *clk_data = platform_get_drvdata(pdev);
 195
 196         of_clk_del_provider(node);
 197         mtk_clk_unregister_gates(apmixed_clks, ARRAY_SIZE(apmixed_clks), clk_data);
 198         mtk_clk_unregister_pllfhs(plls, ARRAY_SIZE(plls), pllfhs,
 199                                   ARRAY_SIZE(pllfhs), clk_data);
 200         mtk_free_clk_data(clk_data);
 201 }
 202
 203 static struct platform_driver clk_mt8192_apmixed_drv = {
 204         .driver = {
 205                 .name = "clk-mt8192-apmixed",
 206                 .of_match_table = of_match_clk_mt8192_apmixed,
 207         },
 208         .probe = clk_mt8192_apmixed_probe,
 209         .remove = clk_mt8192_apmixed_remove,
 210 };
 211 module_platform_driver(clk_mt8192_apmixed_drv);
 212 MODULE_DESCRIPTION("MediaTek MT8192 apmixed clocks driver");
 213 MODULE_LICENSE("GPL");