| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Copyright (c) 2018-2020, The Linux Foundation. All rights reserved. |
| */ |
| |
| #include <linux/clk-provider.h> |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| #include <linux/regmap.h> |
| |
| #include <dt-bindings/clock/qcom,gpucc-sm8250.h> |
| |
| #include "common.h" |
| #include "clk-alpha-pll.h" |
| #include "clk-branch.h" |
| #include "clk-pll.h" |
| #include "clk-rcg.h" |
| #include "clk-regmap.h" |
| #include "reset.h" |
| #include "gdsc.h" |
| |
| #define CX_GMU_CBCR_SLEEP_MASK 0xf |
| #define CX_GMU_CBCR_SLEEP_SHIFT 4 |
| #define CX_GMU_CBCR_WAKE_MASK 0xf |
| #define CX_GMU_CBCR_WAKE_SHIFT 8 |
| |
| enum { |
| P_BI_TCXO, |
| P_CORE_BI_PLL_TEST_SE, |
| P_GPLL0_OUT_MAIN, |
| P_GPLL0_OUT_MAIN_DIV, |
| P_GPU_CC_PLL0_OUT_MAIN, |
| P_GPU_CC_PLL1_OUT_MAIN, |
| }; |
| |
| static struct pll_vco lucid_vco[] = { |
| { 249600000, 2000000000, 0 }, |
| }; |
| |
| static const struct alpha_pll_config gpu_cc_pll1_config = { |
| .l = 0x1a, |
| .alpha = 0xaaa, |
| .config_ctl_val = 0x20485699, |
| .config_ctl_hi_val = 0x00002261, |
| .config_ctl_hi1_val = 0x029a699c, |
| .user_ctl_val = 0x00000000, |
| .user_ctl_hi_val = 0x00000805, |
| .user_ctl_hi1_val = 0x00000000, |
| }; |
| |
| static struct clk_alpha_pll gpu_cc_pll1 = { |
| .offset = 0x100, |
| .vco_table = lucid_vco, |
| .num_vco = ARRAY_SIZE(lucid_vco), |
| .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID], |
| .clkr = { |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpu_cc_pll1", |
| .parent_data = &(const struct clk_parent_data){ |
| .fw_name = "bi_tcxo", |
| }, |
| .num_parents = 1, |
| .ops = &clk_alpha_pll_lucid_ops, |
| }, |
| }, |
| }; |
| |
| static const struct parent_map gpu_cc_parent_map_0[] = { |
| { P_BI_TCXO, 0 }, |
| { P_GPU_CC_PLL1_OUT_MAIN, 3 }, |
| { P_GPLL0_OUT_MAIN, 5 }, |
| { P_GPLL0_OUT_MAIN_DIV, 6 }, |
| }; |
| |
| static const struct clk_parent_data gpu_cc_parent_data_0[] = { |
| { .fw_name = "bi_tcxo" }, |
| { .hw = &gpu_cc_pll1.clkr.hw }, |
| { .fw_name = "gcc_gpu_gpll0_clk_src" }, |
| { .fw_name = "gcc_gpu_gpll0_div_clk_src" }, |
| }; |
| |
| static const struct freq_tbl ftbl_gpu_cc_gmu_clk_src[] = { |
| F(19200000, P_BI_TCXO, 1, 0, 0), |
| F(200000000, P_GPLL0_OUT_MAIN_DIV, 1.5, 0, 0), |
| F(500000000, P_GPU_CC_PLL1_OUT_MAIN, 1, 0, 0), |
| { } |
| }; |
| |
| static struct clk_rcg2 gpu_cc_gmu_clk_src = { |
| .cmd_rcgr = 0x1120, |
| .mnd_width = 0, |
| .hid_width = 5, |
| .parent_map = gpu_cc_parent_map_0, |
| .freq_tbl = ftbl_gpu_cc_gmu_clk_src, |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "gpu_cc_gmu_clk_src", |
| .parent_data = gpu_cc_parent_data_0, |
| .num_parents = ARRAY_SIZE(gpu_cc_parent_data_0), |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_rcg2_ops, |
| }, |
| }; |
| |
| static struct clk_branch gpu_cc_ahb_clk = { |
| .halt_reg = 0x1078, |
| .halt_check = BRANCH_HALT_DELAY, |
| .clkr = { |
| .enable_reg = 0x1078, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpu_cc_ahb_clk", |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpu_cc_crc_ahb_clk = { |
| .halt_reg = 0x107c, |
| .halt_check = BRANCH_HALT_VOTED, |
| .clkr = { |
| .enable_reg = 0x107c, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpu_cc_crc_ahb_clk", |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpu_cc_cx_apb_clk = { |
| .halt_reg = 0x1088, |
| .halt_check = BRANCH_HALT_VOTED, |
| .clkr = { |
| .enable_reg = 0x1088, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpu_cc_cx_apb_clk", |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpu_cc_cx_gmu_clk = { |
| .halt_reg = 0x1098, |
| .halt_check = BRANCH_HALT, |
| .clkr = { |
| .enable_reg = 0x1098, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpu_cc_cx_gmu_clk", |
| .parent_data = &(const struct clk_parent_data){ |
| .hw = &gpu_cc_gmu_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpu_cc_cx_snoc_dvm_clk = { |
| .halt_reg = 0x108c, |
| .halt_check = BRANCH_HALT_VOTED, |
| .clkr = { |
| .enable_reg = 0x108c, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpu_cc_cx_snoc_dvm_clk", |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpu_cc_cxo_aon_clk = { |
| .halt_reg = 0x1004, |
| .halt_check = BRANCH_HALT_VOTED, |
| .clkr = { |
| .enable_reg = 0x1004, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpu_cc_cxo_aon_clk", |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpu_cc_cxo_clk = { |
| .halt_reg = 0x109c, |
| .halt_check = BRANCH_HALT, |
| .clkr = { |
| .enable_reg = 0x109c, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpu_cc_cxo_clk", |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpu_cc_gx_gmu_clk = { |
| .halt_reg = 0x1064, |
| .halt_check = BRANCH_HALT, |
| .clkr = { |
| .enable_reg = 0x1064, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpu_cc_gx_gmu_clk", |
| .parent_data = &(const struct clk_parent_data){ |
| .hw = &gpu_cc_gmu_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpu_cc_hlos1_vote_gpu_smmu_clk = { |
| .halt_reg = 0x5000, |
| .halt_check = BRANCH_VOTED, |
| .clkr = { |
| .enable_reg = 0x5000, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpu_cc_hlos1_vote_gpu_smmu_clk", |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct gdsc gpu_cx_gdsc = { |
| .gdscr = 0x106c, |
| .gds_hw_ctrl = 0x1540, |
| .pd = { |
| .name = "gpu_cx_gdsc", |
| }, |
| .pwrsts = PWRSTS_OFF_ON, |
| .flags = VOTABLE, |
| }; |
| |
| static struct gdsc gpu_gx_gdsc = { |
| .gdscr = 0x100c, |
| .clamp_io_ctrl = 0x1508, |
| .pd = { |
| .name = "gpu_gx_gdsc", |
| .power_on = gdsc_gx_do_nothing_enable, |
| }, |
| .pwrsts = PWRSTS_OFF_ON, |
| .flags = CLAMP_IO | AON_RESET | POLL_CFG_GDSCR, |
| }; |
| |
| static struct clk_regmap *gpu_cc_sm8250_clocks[] = { |
| [GPU_CC_AHB_CLK] = &gpu_cc_ahb_clk.clkr, |
| [GPU_CC_CRC_AHB_CLK] = &gpu_cc_crc_ahb_clk.clkr, |
| [GPU_CC_CX_APB_CLK] = &gpu_cc_cx_apb_clk.clkr, |
| [GPU_CC_CX_GMU_CLK] = &gpu_cc_cx_gmu_clk.clkr, |
| [GPU_CC_CX_SNOC_DVM_CLK] = &gpu_cc_cx_snoc_dvm_clk.clkr, |
| [GPU_CC_CXO_AON_CLK] = &gpu_cc_cxo_aon_clk.clkr, |
| [GPU_CC_CXO_CLK] = &gpu_cc_cxo_clk.clkr, |
| [GPU_CC_GMU_CLK_SRC] = &gpu_cc_gmu_clk_src.clkr, |
| [GPU_CC_GX_GMU_CLK] = &gpu_cc_gx_gmu_clk.clkr, |
| [GPU_CC_PLL1] = &gpu_cc_pll1.clkr, |
| [GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK] = &gpu_cc_hlos1_vote_gpu_smmu_clk.clkr, |
| }; |
| |
| static const struct qcom_reset_map gpu_cc_sm8250_resets[] = { |
| [GPUCC_GPU_CC_ACD_BCR] = { 0x1160 }, |
| [GPUCC_GPU_CC_CX_BCR] = { 0x1068 }, |
| [GPUCC_GPU_CC_GFX3D_AON_BCR] = { 0x10a0 }, |
| [GPUCC_GPU_CC_GMU_BCR] = { 0x111c }, |
| [GPUCC_GPU_CC_GX_BCR] = { 0x1008 }, |
| [GPUCC_GPU_CC_XO_BCR] = { 0x1000 }, |
| }; |
| |
| static struct gdsc *gpu_cc_sm8250_gdscs[] = { |
| [GPU_CX_GDSC] = &gpu_cx_gdsc, |
| [GPU_GX_GDSC] = &gpu_gx_gdsc, |
| }; |
| |
| static const struct regmap_config gpu_cc_sm8250_regmap_config = { |
| .reg_bits = 32, |
| .reg_stride = 4, |
| .val_bits = 32, |
| .max_register = 0x8008, |
| .fast_io = true, |
| }; |
| |
| static const struct qcom_cc_desc gpu_cc_sm8250_desc = { |
| .config = &gpu_cc_sm8250_regmap_config, |
| .clks = gpu_cc_sm8250_clocks, |
| .num_clks = ARRAY_SIZE(gpu_cc_sm8250_clocks), |
| .resets = gpu_cc_sm8250_resets, |
| .num_resets = ARRAY_SIZE(gpu_cc_sm8250_resets), |
| .gdscs = gpu_cc_sm8250_gdscs, |
| .num_gdscs = ARRAY_SIZE(gpu_cc_sm8250_gdscs), |
| }; |
| |
| static const struct of_device_id gpu_cc_sm8250_match_table[] = { |
| { .compatible = "qcom,sm8250-gpucc" }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(of, gpu_cc_sm8250_match_table); |
| |
| static int gpu_cc_sm8250_probe(struct platform_device *pdev) |
| { |
| struct regmap *regmap; |
| unsigned int value, mask; |
| |
| regmap = qcom_cc_map(pdev, &gpu_cc_sm8250_desc); |
| if (IS_ERR(regmap)) |
| return PTR_ERR(regmap); |
| |
| clk_lucid_pll_configure(&gpu_cc_pll1, regmap, &gpu_cc_pll1_config); |
| |
| /* |
| * Configure gpu_cc_cx_gmu_clk with recommended |
| * wakeup/sleep settings |
| */ |
| mask = CX_GMU_CBCR_WAKE_MASK << CX_GMU_CBCR_WAKE_SHIFT; |
| mask |= CX_GMU_CBCR_SLEEP_MASK << CX_GMU_CBCR_SLEEP_SHIFT; |
| value = 0xf << CX_GMU_CBCR_WAKE_SHIFT | 0xf << CX_GMU_CBCR_SLEEP_SHIFT; |
| regmap_update_bits(regmap, 0x1098, mask, value); |
| |
| return qcom_cc_really_probe(pdev, &gpu_cc_sm8250_desc, regmap); |
| } |
| |
| static struct platform_driver gpu_cc_sm8250_driver = { |
| .probe = gpu_cc_sm8250_probe, |
| .driver = { |
| .name = "sm8250-gpucc", |
| .of_match_table = gpu_cc_sm8250_match_table, |
| }, |
| }; |
| |
| static int __init gpu_cc_sm8250_init(void) |
| { |
| return platform_driver_register(&gpu_cc_sm8250_driver); |
| } |
| subsys_initcall(gpu_cc_sm8250_init); |
| |
| static void __exit gpu_cc_sm8250_exit(void) |
| { |
| platform_driver_unregister(&gpu_cc_sm8250_driver); |
| } |
| module_exit(gpu_cc_sm8250_exit); |
| |
| MODULE_DESCRIPTION("QTI GPU_CC SM8250 Driver"); |
| MODULE_LICENSE("GPL v2"); |
