| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. |
| */ |
| |
| #include <linux/clk-provider.h> |
| #include <linux/module.h> |
| #include <linux/of.h> |
| #include <linux/platform_device.h> |
| #include <linux/regmap.h> |
| |
| #include <dt-bindings/clock/qcom,glymur-evacc.h> |
| |
| #include "clk-alpha-pll.h" |
| #include "clk-branch.h" |
| #include "clk-pll.h" |
| #include "clk-rcg.h" |
| #include "clk-regmap.h" |
| #include "clk-regmap-divider.h" |
| #include "clk-regmap-mux.h" |
| #include "common.h" |
| #include "gdsc.h" |
| #include "reset.h" |
| |
| enum { |
| DT_AHB_CLK, |
| DT_BI_TCXO, |
| DT_SLEEP_CLK, |
| }; |
| |
| enum { |
| P_BI_TCXO, |
| P_EVA_CC_PLL0_OUT_MAIN, |
| P_SLEEP_CLK, |
| }; |
| |
| static const struct pll_vco taycan_eko_t_vco[] = { |
| { 249600000, 2500000000, 0 }, |
| }; |
| |
| /* 840.0 MHz Configuration */ |
| static const struct alpha_pll_config eva_cc_pll0_config = { |
| .l = 0x2b, |
| .alpha = 0xc000, |
| .config_ctl_val = 0x25c400e7, |
| .config_ctl_hi_val = 0x0a8060e0, |
| .config_ctl_hi1_val = 0xf51dea20, |
| .user_ctl_val = 0x00000008, |
| .user_ctl_hi_val = 0x00000002, |
| }; |
| |
| static struct clk_alpha_pll eva_cc_pll0 = { |
| .offset = 0x0, |
| .config = &eva_cc_pll0_config, |
| .vco_table = taycan_eko_t_vco, |
| .num_vco = ARRAY_SIZE(taycan_eko_t_vco), |
| .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_TAYCAN_EKO_T], |
| .clkr = { |
| .hw.init = &(const struct clk_init_data) { |
| .name = "eva_cc_pll0", |
| .parent_data = &(const struct clk_parent_data) { |
| .index = DT_BI_TCXO, |
| }, |
| .num_parents = 1, |
| .ops = &clk_alpha_pll_taycan_eko_t_ops, |
| }, |
| }, |
| }; |
| |
| static const struct parent_map eva_cc_parent_map_0[] = { |
| { P_BI_TCXO, 0 }, |
| }; |
| |
| static const struct clk_parent_data eva_cc_parent_data_0[] = { |
| { .index = DT_BI_TCXO }, |
| }; |
| |
| static const struct parent_map eva_cc_parent_map_1[] = { |
| { P_BI_TCXO, 0 }, |
| { P_EVA_CC_PLL0_OUT_MAIN, 1 }, |
| }; |
| |
| static const struct clk_parent_data eva_cc_parent_data_1[] = { |
| { .index = DT_BI_TCXO }, |
| { .hw = &eva_cc_pll0.clkr.hw }, |
| }; |
| |
| static const struct parent_map eva_cc_parent_map_2[] = { |
| { P_SLEEP_CLK, 0 }, |
| }; |
| |
| static const struct clk_parent_data eva_cc_parent_data_2[] = { |
| { .index = DT_SLEEP_CLK }, |
| }; |
| |
| static const struct freq_tbl ftbl_eva_cc_ahb_clk_src[] = { |
| F(19200000, P_BI_TCXO, 1, 0, 0), |
| { } |
| }; |
| |
| static struct clk_rcg2 eva_cc_ahb_clk_src = { |
| .cmd_rcgr = 0x8018, |
| .mnd_width = 0, |
| .hid_width = 5, |
| .parent_map = eva_cc_parent_map_0, |
| .freq_tbl = ftbl_eva_cc_ahb_clk_src, |
| .hw_clk_ctrl = true, |
| .clkr = { |
| .hw.init = &(const struct clk_init_data) { |
| .name = "eva_cc_ahb_clk_src", |
| .parent_data = eva_cc_parent_data_0, |
| .num_parents = ARRAY_SIZE(eva_cc_parent_data_0), |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_rcg2_shared_ops, |
| }, |
| }, |
| }; |
| |
| static const struct freq_tbl ftbl_eva_cc_mvs0_clk_src[] = { |
| F(840000000, P_EVA_CC_PLL0_OUT_MAIN, 1, 0, 0), |
| F(1050000000, P_EVA_CC_PLL0_OUT_MAIN, 1, 0, 0), |
| F(1350000000, P_EVA_CC_PLL0_OUT_MAIN, 1, 0, 0), |
| F(1500000000, P_EVA_CC_PLL0_OUT_MAIN, 1, 0, 0), |
| F(1650000000, P_EVA_CC_PLL0_OUT_MAIN, 1, 0, 0), |
| { } |
| }; |
| |
| static struct clk_rcg2 eva_cc_mvs0_clk_src = { |
| .cmd_rcgr = 0x8000, |
| .mnd_width = 0, |
| .hid_width = 5, |
| .parent_map = eva_cc_parent_map_1, |
| .freq_tbl = ftbl_eva_cc_mvs0_clk_src, |
| .hw_clk_ctrl = true, |
| .clkr = { |
| .hw.init = &(const struct clk_init_data) { |
| .name = "eva_cc_mvs0_clk_src", |
| .parent_data = eva_cc_parent_data_1, |
| .num_parents = ARRAY_SIZE(eva_cc_parent_data_1), |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_rcg2_shared_ops, |
| }, |
| }, |
| }; |
| |
| static const struct freq_tbl ftbl_eva_cc_sleep_clk_src[] = { |
| F(32000, P_SLEEP_CLK, 1, 0, 0), |
| { } |
| }; |
| |
| static struct clk_rcg2 eva_cc_sleep_clk_src = { |
| .cmd_rcgr = 0x80e0, |
| .mnd_width = 0, |
| .hid_width = 5, |
| .parent_map = eva_cc_parent_map_2, |
| .freq_tbl = ftbl_eva_cc_sleep_clk_src, |
| .hw_clk_ctrl = true, |
| .clkr = { |
| .hw.init = &(const struct clk_init_data) { |
| .name = "eva_cc_sleep_clk_src", |
| .parent_data = eva_cc_parent_data_2, |
| .num_parents = ARRAY_SIZE(eva_cc_parent_data_2), |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_rcg2_shared_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_rcg2 eva_cc_xo_clk_src = { |
| .cmd_rcgr = 0x80bc, |
| .mnd_width = 0, |
| .hid_width = 5, |
| .parent_map = eva_cc_parent_map_0, |
| .freq_tbl = ftbl_eva_cc_ahb_clk_src, |
| .hw_clk_ctrl = true, |
| .clkr = { |
| .hw.init = &(const struct clk_init_data) { |
| .name = "eva_cc_xo_clk_src", |
| .parent_data = eva_cc_parent_data_0, |
| .num_parents = ARRAY_SIZE(eva_cc_parent_data_0), |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_rcg2_shared_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_regmap_div eva_cc_mvs0_div_clk_src = { |
| .reg = 0x809c, |
| .shift = 0, |
| .width = 4, |
| .clkr.hw.init = &(const struct clk_init_data) { |
| .name = "eva_cc_mvs0_div_clk_src", |
| .parent_hws = (const struct clk_hw*[]) { |
| &eva_cc_mvs0_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_regmap_div_ro_ops, |
| }, |
| }; |
| |
| static struct clk_regmap_div eva_cc_mvs0c_div2_div_clk_src = { |
| .reg = 0x8060, |
| .shift = 0, |
| .width = 4, |
| .clkr.hw.init = &(const struct clk_init_data) { |
| .name = "eva_cc_mvs0c_div2_div_clk_src", |
| .parent_hws = (const struct clk_hw*[]) { |
| &eva_cc_mvs0_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_regmap_div_ro_ops, |
| }, |
| }; |
| |
| static struct clk_branch eva_cc_mvs0_clk = { |
| .halt_reg = 0x807c, |
| .halt_check = BRANCH_HALT_VOTED, |
| .hwcg_reg = 0x807c, |
| .hwcg_bit = 1, |
| .clkr = { |
| .enable_reg = 0x807c, |
| .enable_mask = BIT(0), |
| .hw.init = &(const struct clk_init_data) { |
| .name = "eva_cc_mvs0_clk", |
| .parent_hws = (const struct clk_hw*[]) { |
| &eva_cc_mvs0_div_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch eva_cc_mvs0_freerun_clk = { |
| .halt_reg = 0x808c, |
| .halt_check = BRANCH_HALT, |
| .clkr = { |
| .enable_reg = 0x808c, |
| .enable_mask = BIT(0), |
| .hw.init = &(const struct clk_init_data) { |
| .name = "eva_cc_mvs0_freerun_clk", |
| .parent_hws = (const struct clk_hw*[]) { |
| &eva_cc_mvs0_div_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch eva_cc_mvs0_shift_clk = { |
| .halt_reg = 0x80d8, |
| .halt_check = BRANCH_HALT_VOTED, |
| .hwcg_reg = 0x80d8, |
| .hwcg_bit = 1, |
| .clkr = { |
| .enable_reg = 0x80d8, |
| .enable_mask = BIT(0), |
| .hw.init = &(const struct clk_init_data) { |
| .name = "eva_cc_mvs0_shift_clk", |
| .parent_hws = (const struct clk_hw*[]) { |
| &eva_cc_xo_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch eva_cc_mvs0c_clk = { |
| .halt_reg = 0x804c, |
| .halt_check = BRANCH_HALT, |
| .clkr = { |
| .enable_reg = 0x804c, |
| .enable_mask = BIT(0), |
| .hw.init = &(const struct clk_init_data) { |
| .name = "eva_cc_mvs0c_clk", |
| .parent_hws = (const struct clk_hw*[]) { |
| &eva_cc_mvs0c_div2_div_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch eva_cc_mvs0c_freerun_clk = { |
| .halt_reg = 0x805c, |
| .halt_check = BRANCH_HALT, |
| .clkr = { |
| .enable_reg = 0x805c, |
| .enable_mask = BIT(0), |
| .hw.init = &(const struct clk_init_data) { |
| .name = "eva_cc_mvs0c_freerun_clk", |
| .parent_hws = (const struct clk_hw*[]) { |
| &eva_cc_mvs0c_div2_div_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch eva_cc_mvs0c_shift_clk = { |
| .halt_reg = 0x80dc, |
| .halt_check = BRANCH_HALT_VOTED, |
| .hwcg_reg = 0x80dc, |
| .hwcg_bit = 1, |
| .clkr = { |
| .enable_reg = 0x80dc, |
| .enable_mask = BIT(0), |
| .hw.init = &(const struct clk_init_data) { |
| .name = "eva_cc_mvs0c_shift_clk", |
| .parent_hws = (const struct clk_hw*[]) { |
| &eva_cc_xo_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct gdsc eva_cc_mvs0c_gdsc = { |
| .gdscr = 0x8034, |
| .en_rest_wait_val = 0x2, |
| .en_few_wait_val = 0x2, |
| .clk_dis_wait_val = 0x6, |
| .pd = { |
| .name = "eva_cc_mvs0c_gdsc", |
| }, |
| .pwrsts = PWRSTS_OFF_ON, |
| .flags = POLL_CFG_GDSCR | RETAIN_FF_ENABLE, |
| }; |
| |
| static struct gdsc eva_cc_mvs0_gdsc = { |
| .gdscr = 0x8068, |
| .en_rest_wait_val = 0x2, |
| .en_few_wait_val = 0x2, |
| .clk_dis_wait_val = 0x6, |
| .pd = { |
| .name = "eva_cc_mvs0_gdsc", |
| }, |
| .pwrsts = PWRSTS_OFF_ON, |
| .flags = HW_CTRL_TRIGGER | POLL_CFG_GDSCR | RETAIN_FF_ENABLE, |
| .parent = &eva_cc_mvs0c_gdsc.pd, |
| }; |
| |
| static struct clk_regmap *eva_cc_glymur_clocks[] = { |
| [EVA_CC_AHB_CLK_SRC] = &eva_cc_ahb_clk_src.clkr, |
| [EVA_CC_MVS0_CLK] = &eva_cc_mvs0_clk.clkr, |
| [EVA_CC_MVS0_CLK_SRC] = &eva_cc_mvs0_clk_src.clkr, |
| [EVA_CC_MVS0_DIV_CLK_SRC] = &eva_cc_mvs0_div_clk_src.clkr, |
| [EVA_CC_MVS0_FREERUN_CLK] = &eva_cc_mvs0_freerun_clk.clkr, |
| [EVA_CC_MVS0_SHIFT_CLK] = &eva_cc_mvs0_shift_clk.clkr, |
| [EVA_CC_MVS0C_CLK] = &eva_cc_mvs0c_clk.clkr, |
| [EVA_CC_MVS0C_DIV2_DIV_CLK_SRC] = &eva_cc_mvs0c_div2_div_clk_src.clkr, |
| [EVA_CC_MVS0C_FREERUN_CLK] = &eva_cc_mvs0c_freerun_clk.clkr, |
| [EVA_CC_MVS0C_SHIFT_CLK] = &eva_cc_mvs0c_shift_clk.clkr, |
| [EVA_CC_PLL0] = &eva_cc_pll0.clkr, |
| [EVA_CC_SLEEP_CLK_SRC] = &eva_cc_sleep_clk_src.clkr, |
| [EVA_CC_XO_CLK_SRC] = &eva_cc_xo_clk_src.clkr, |
| }; |
| |
| static struct gdsc *eva_cc_glymur_gdscs[] = { |
| [EVA_CC_MVS0_GDSC] = &eva_cc_mvs0_gdsc, |
| [EVA_CC_MVS0C_GDSC] = &eva_cc_mvs0c_gdsc, |
| }; |
| |
| static const struct qcom_reset_map eva_cc_glymur_resets[] = { |
| [EVA_CC_INTERFACE_BCR] = { 0x80a0 }, |
| [EVA_CC_MVS0_BCR] = { 0x8064 }, |
| [EVA_CC_MVS0C_CLK_ARES] = { 0x804c, 2 }, |
| [EVA_CC_MVS0C_BCR] = { 0x8030 }, |
| [EVA_CC_MVS0C_FREERUN_CLK_ARES] = { 0x805c, 2 }, |
| }; |
| |
| static struct clk_alpha_pll *eva_cc_glymur_plls[] = { |
| &eva_cc_pll0, |
| }; |
| |
| static const u32 eva_cc_glymur_critical_cbcrs[] = { |
| 0x80a4, /* EVA_CC_AHB_CLK */ |
| 0x80f8, /* EVA_CC_SLEEP_CLK */ |
| 0x80d4, /* EVA_CC_XO_CLK */ |
| }; |
| |
| static const struct regmap_config eva_cc_glymur_regmap_config = { |
| .reg_bits = 32, |
| .reg_stride = 4, |
| .val_bits = 32, |
| .max_register = 0x9f50, |
| .fast_io = true, |
| }; |
| |
| static void clk_glymur_regs_configure(struct device *dev, struct regmap *regmap) |
| { |
| /* |
| * Update CTRL_IN register as per HW recommendation to ensure clocks |
| * stay cycle‑aligned when the EVA core is ON. |
| */ |
| regmap_set_bits(regmap, 0x9f24, BIT(0)); |
| } |
| |
| static const struct qcom_cc_driver_data eva_cc_glymur_driver_data = { |
| .alpha_plls = eva_cc_glymur_plls, |
| .num_alpha_plls = ARRAY_SIZE(eva_cc_glymur_plls), |
| .clk_cbcrs = eva_cc_glymur_critical_cbcrs, |
| .num_clk_cbcrs = ARRAY_SIZE(eva_cc_glymur_critical_cbcrs), |
| .clk_regs_configure = clk_glymur_regs_configure, |
| }; |
| |
| static const struct qcom_cc_desc eva_cc_glymur_desc = { |
| .config = &eva_cc_glymur_regmap_config, |
| .clks = eva_cc_glymur_clocks, |
| .num_clks = ARRAY_SIZE(eva_cc_glymur_clocks), |
| .resets = eva_cc_glymur_resets, |
| .num_resets = ARRAY_SIZE(eva_cc_glymur_resets), |
| .gdscs = eva_cc_glymur_gdscs, |
| .num_gdscs = ARRAY_SIZE(eva_cc_glymur_gdscs), |
| .use_rpm = true, |
| .driver_data = &eva_cc_glymur_driver_data, |
| }; |
| |
| static const struct of_device_id eva_cc_glymur_match_table[] = { |
| { .compatible = "qcom,glymur-evacc" }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(of, eva_cc_glymur_match_table); |
| |
| static int eva_cc_glymur_probe(struct platform_device *pdev) |
| { |
| return qcom_cc_probe(pdev, &eva_cc_glymur_desc); |
| } |
| |
| static struct platform_driver eva_cc_glymur_driver = { |
| .probe = eva_cc_glymur_probe, |
| .driver = { |
| .name = "evacc-glymur", |
| .of_match_table = eva_cc_glymur_match_table, |
| }, |
| }; |
| |
| module_platform_driver(eva_cc_glymur_driver); |
| |
| MODULE_DESCRIPTION("QTI EVACC Glymur Driver"); |
| MODULE_LICENSE("GPL"); |
