// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2019, 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-sc7180.h> #include "clk-alpha-pll.h" #include "clk-branch.h" #include "clk-rcg.h" #include "clk-regmap.h" #include "common.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_GPLL0_OUT_MAIN, P_GPLL0_OUT_MAIN_DIV, P_GPU_CC_PLL1_OUT_MAIN, }; static const struct pll_vco fabia_vco[] = { { 249600000, 2000000000, 0 }, }; static struct clk_alpha_pll gpu_cc_pll1 = { .offset = 0x100, .vco_table = fabia_vco, .num_vco = ARRAY_SIZE(fabia_vco), .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_FABIA], .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_fabia_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), { } }; 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_shared_ops, }, }; static struct clk_branch gpu_cc_crc_ahb_clk = { .halt_reg = 0x107c, .halt_check = BRANCH_HALT_DELAY, .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_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_hws = (const struct clk_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_DELAY, .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_DELAY, .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 gdsc cx_gdsc = { .gdscr = 0x106c, .gds_hw_ctrl = 0x1540, .clk_dis_wait_val = 8, .pd = { .name = "cx_gdsc", }, .pwrsts = PWRSTS_OFF_ON, .flags = VOTABLE, }; static struct gdsc gx_gdsc = { .gdscr = 0x100c, .clamp_io_ctrl = 0x1508, .pd = { .name = "gx_gdsc", .power_on = gdsc_gx_do_nothing_enable, }, .pwrsts = PWRSTS_OFF_ON, .flags = CLAMP_IO, }; static struct gdsc *gpu_cc_sc7180_gdscs[] = { [CX_GDSC] = &cx_gdsc, [GX_GDSC] = &gx_gdsc, }; static struct clk_regmap *gpu_cc_sc7180_clocks[] = { [GPU_CC_CXO_CLK] = &gpu_cc_cxo_clk.clkr, [GPU_CC_CRC_AHB_CLK] = &gpu_cc_crc_ahb_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_GMU_CLK_SRC] = &gpu_cc_gmu_clk_src.clkr, [GPU_CC_PLL1] = &gpu_cc_pll1.clkr, }; static const struct regmap_config gpu_cc_sc7180_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_sc7180_desc = { .config = &gpu_cc_sc7180_regmap_config, .clks = gpu_cc_sc7180_clocks, .num_clks = ARRAY_SIZE(gpu_cc_sc7180_clocks), .gdscs = gpu_cc_sc7180_gdscs, .num_gdscs = ARRAY_SIZE(gpu_cc_sc7180_gdscs), }; static const struct of_device_id gpu_cc_sc7180_match_table[] = { { .compatible = "qcom,sc7180-gpucc" }, { } }; MODULE_DEVICE_TABLE(of, gpu_cc_sc7180_match_table); static int gpu_cc_sc7180_probe(struct platform_device *pdev) { struct regmap *regmap; struct alpha_pll_config gpu_cc_pll_config = {}; unsigned int value, mask; regmap = qcom_cc_map(pdev, &gpu_cc_sc7180_desc); if (IS_ERR(regmap)) return PTR_ERR(regmap); /* 360MHz Configuration */ gpu_cc_pll_config.l = 0x12; gpu_cc_pll_config.alpha = 0xc000; gpu_cc_pll_config.config_ctl_val = 0x20485699; gpu_cc_pll_config.config_ctl_hi_val = 0x00002067; gpu_cc_pll_config.user_ctl_val = 0x00000001; gpu_cc_pll_config.user_ctl_hi_val = 0x00004805; gpu_cc_pll_config.test_ctl_hi_val = 0x40000000; clk_fabia_pll_configure(&gpu_cc_pll1, regmap, &gpu_cc_pll_config); /* Recommended WAKEUP/SLEEP settings for the gpu_cc_cx_gmu_clk */ 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_sc7180_desc, regmap); } static struct platform_driver gpu_cc_sc7180_driver = { .probe = gpu_cc_sc7180_probe, .driver = { .name = "sc7180-gpucc", .of_match_table = gpu_cc_sc7180_match_table, }, }; static int __init gpu_cc_sc7180_init(void) { return platform_driver_register(&gpu_cc_sc7180_driver); } subsys_initcall(gpu_cc_sc7180_init); static void __exit gpu_cc_sc7180_exit(void) { platform_driver_unregister(&gpu_cc_sc7180_driver); } module_exit(gpu_cc_sc7180_exit); MODULE_DESCRIPTION("QTI GPU_CC SC7180 Driver"); MODULE_LICENSE("GPL v2");