| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright (c) 2020, The Linux Foundation. All rights reserved. |
| * Copyright (c) 2020, AngeloGioacchino Del Regno |
| * <angelogioacchino.delregno@somainline.org> |
| */ |
| |
| #include <linux/bitops.h> |
| #include <linux/clk.h> |
| #include <linux/clk-provider.h> |
| #include <linux/err.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| #include <linux/of.h> |
| #include <linux/of_device.h> |
| #include <linux/regmap.h> |
| #include <linux/reset-controller.h> |
| #include <dt-bindings/clock/qcom,gpucc-sdm660.h> |
| |
| #include "clk-alpha-pll.h" |
| #include "common.h" |
| #include "clk-regmap.h" |
| #include "clk-pll.h" |
| #include "clk-rcg.h" |
| #include "clk-branch.h" |
| #include "gdsc.h" |
| #include "reset.h" |
| |
| enum { |
| P_GPU_XO, |
| P_GPLL0_OUT_MAIN, |
| P_GPLL0_OUT_MAIN_DIV, |
| P_GPU_PLL0_PLL_OUT_MAIN, |
| P_GPU_PLL1_PLL_OUT_MAIN, |
| }; |
| |
| static struct clk_branch gpucc_cxo_clk = { |
| .halt_reg = 0x1020, |
| .clkr = { |
| .enable_reg = 0x1020, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpucc_cxo_clk", |
| .parent_data = &(const struct clk_parent_data){ |
| .fw_name = "xo" |
| }, |
| .num_parents = 1, |
| .ops = &clk_branch2_ops, |
| .flags = CLK_IS_CRITICAL, |
| }, |
| }, |
| }; |
| |
| static struct pll_vco gpu_vco[] = { |
| { 1000000000, 2000000000, 0 }, |
| { 500000000, 1000000000, 2 }, |
| { 250000000, 500000000, 3 }, |
| }; |
| |
| static struct clk_alpha_pll gpu_pll0_pll_out_main = { |
| .offset = 0x0, |
| .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT], |
| .vco_table = gpu_vco, |
| .num_vco = ARRAY_SIZE(gpu_vco), |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "gpu_pll0_pll_out_main", |
| .parent_hws = (const struct clk_hw*[]){ |
| &gpucc_cxo_clk.clkr.hw, |
| }, |
| .num_parents = 1, |
| .ops = &clk_alpha_pll_ops, |
| }, |
| }; |
| |
| static struct clk_alpha_pll gpu_pll1_pll_out_main = { |
| .offset = 0x40, |
| .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT], |
| .vco_table = gpu_vco, |
| .num_vco = ARRAY_SIZE(gpu_vco), |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "gpu_pll1_pll_out_main", |
| .parent_hws = (const struct clk_hw*[]){ |
| &gpucc_cxo_clk.clkr.hw, |
| }, |
| .num_parents = 1, |
| .ops = &clk_alpha_pll_ops, |
| }, |
| }; |
| |
| static const struct parent_map gpucc_parent_map_1[] = { |
| { P_GPU_XO, 0 }, |
| { P_GPU_PLL0_PLL_OUT_MAIN, 1 }, |
| { P_GPU_PLL1_PLL_OUT_MAIN, 3 }, |
| { P_GPLL0_OUT_MAIN, 5 }, |
| }; |
| |
| static const struct clk_parent_data gpucc_parent_data_1[] = { |
| { .hw = &gpucc_cxo_clk.clkr.hw }, |
| { .hw = &gpu_pll0_pll_out_main.clkr.hw }, |
| { .hw = &gpu_pll1_pll_out_main.clkr.hw }, |
| { .fw_name = "gcc_gpu_gpll0_clk" }, |
| }; |
| |
| static struct clk_rcg2_gfx3d gfx3d_clk_src = { |
| .div = 2, |
| .rcg = { |
| .cmd_rcgr = 0x1070, |
| .mnd_width = 0, |
| .hid_width = 5, |
| .parent_map = gpucc_parent_map_1, |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "gfx3d_clk_src", |
| .parent_data = gpucc_parent_data_1, |
| .num_parents = ARRAY_SIZE(gpucc_parent_data_1), |
| .ops = &clk_gfx3d_ops, |
| .flags = CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE, |
| }, |
| }, |
| .hws = (struct clk_hw*[]){ |
| &gpucc_cxo_clk.clkr.hw, |
| &gpu_pll0_pll_out_main.clkr.hw, |
| &gpu_pll1_pll_out_main.clkr.hw, |
| } |
| }; |
| |
| static struct clk_branch gpucc_gfx3d_clk = { |
| .halt_reg = 0x1098, |
| .halt_check = BRANCH_HALT, |
| .hwcg_reg = 0x1098, |
| .hwcg_bit = 1, |
| .clkr = { |
| .enable_reg = 0x1098, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpucc_gfx3d_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &gfx3d_clk_src.rcg.clkr.hw, |
| }, |
| .num_parents = 1, |
| .ops = &clk_branch2_ops, |
| .flags = CLK_SET_RATE_PARENT, |
| }, |
| }, |
| }; |
| |
| static const struct parent_map gpucc_parent_map_0[] = { |
| { P_GPU_XO, 0 }, |
| { P_GPLL0_OUT_MAIN, 5 }, |
| { P_GPLL0_OUT_MAIN_DIV, 6 }, |
| }; |
| |
| static const struct clk_parent_data gpucc_parent_data_0[] = { |
| { .hw = &gpucc_cxo_clk.clkr.hw }, |
| { .fw_name = "gcc_gpu_gpll0_clk" }, |
| { .fw_name = "gcc_gpu_gpll0_div_clk" }, |
| }; |
| |
| static const struct freq_tbl ftbl_rbbmtimer_clk_src[] = { |
| F(19200000, P_GPU_XO, 1, 0, 0), |
| { } |
| }; |
| |
| static struct clk_rcg2 rbbmtimer_clk_src = { |
| .cmd_rcgr = 0x10b0, |
| .mnd_width = 0, |
| .hid_width = 5, |
| .parent_map = gpucc_parent_map_0, |
| .freq_tbl = ftbl_rbbmtimer_clk_src, |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "rbbmtimer_clk_src", |
| .parent_data = gpucc_parent_data_0, |
| .num_parents = ARRAY_SIZE(gpucc_parent_data_0), |
| .ops = &clk_rcg2_ops, |
| }, |
| }; |
| |
| static const struct freq_tbl ftbl_rbcpr_clk_src[] = { |
| F(19200000, P_GPU_XO, 1, 0, 0), |
| F(50000000, P_GPLL0_OUT_MAIN_DIV, 6, 0, 0), |
| { } |
| }; |
| |
| static struct clk_rcg2 rbcpr_clk_src = { |
| .cmd_rcgr = 0x1030, |
| .mnd_width = 0, |
| .hid_width = 5, |
| .parent_map = gpucc_parent_map_0, |
| .freq_tbl = ftbl_rbcpr_clk_src, |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "rbcpr_clk_src", |
| .parent_data = gpucc_parent_data_0, |
| .num_parents = ARRAY_SIZE(gpucc_parent_data_0), |
| .ops = &clk_rcg2_ops, |
| }, |
| }; |
| |
| static struct clk_branch gpucc_rbbmtimer_clk = { |
| .halt_reg = 0x10d0, |
| .halt_check = BRANCH_HALT, |
| .clkr = { |
| .enable_reg = 0x10d0, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpucc_rbbmtimer_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &rbbmtimer_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch gpucc_rbcpr_clk = { |
| .halt_reg = 0x1054, |
| .halt_check = BRANCH_HALT, |
| .clkr = { |
| .enable_reg = 0x1054, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "gpucc_rbcpr_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &rbcpr_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct gdsc gpu_cx_gdsc = { |
| .gdscr = 0x1004, |
| .gds_hw_ctrl = 0x1008, |
| .pd = { |
| .name = "gpu_cx", |
| }, |
| .pwrsts = PWRSTS_OFF_ON, |
| .flags = VOTABLE, |
| }; |
| |
| static struct gdsc gpu_gx_gdsc = { |
| .gdscr = 0x1094, |
| .clamp_io_ctrl = 0x130, |
| .resets = (unsigned int []){ GPU_GX_BCR }, |
| .reset_count = 1, |
| .cxcs = (unsigned int []){ 0x1098 }, |
| .cxc_count = 1, |
| .pd = { |
| .name = "gpu_gx", |
| }, |
| .parent = &gpu_cx_gdsc.pd, |
| .pwrsts = PWRSTS_OFF | PWRSTS_ON | PWRSTS_RET, |
| .flags = CLAMP_IO | SW_RESET | AON_RESET | NO_RET_PERIPH, |
| }; |
| |
| static struct gdsc *gpucc_sdm660_gdscs[] = { |
| [GPU_CX_GDSC] = &gpu_cx_gdsc, |
| [GPU_GX_GDSC] = &gpu_gx_gdsc, |
| }; |
| |
| static const struct qcom_reset_map gpucc_sdm660_resets[] = { |
| [GPU_CX_BCR] = { 0x1000 }, |
| [RBCPR_BCR] = { 0x1050 }, |
| [GPU_GX_BCR] = { 0x1090 }, |
| [SPDM_BCR] = { 0x10E0 }, |
| }; |
| |
| static struct clk_regmap *gpucc_sdm660_clocks[] = { |
| [GPUCC_CXO_CLK] = &gpucc_cxo_clk.clkr, |
| [GPU_PLL0_PLL] = &gpu_pll0_pll_out_main.clkr, |
| [GPU_PLL1_PLL] = &gpu_pll1_pll_out_main.clkr, |
| [GFX3D_CLK_SRC] = &gfx3d_clk_src.rcg.clkr, |
| [RBCPR_CLK_SRC] = &rbcpr_clk_src.clkr, |
| [RBBMTIMER_CLK_SRC] = &rbbmtimer_clk_src.clkr, |
| [GPUCC_RBCPR_CLK] = &gpucc_rbcpr_clk.clkr, |
| [GPUCC_GFX3D_CLK] = &gpucc_gfx3d_clk.clkr, |
| [GPUCC_RBBMTIMER_CLK] = &gpucc_rbbmtimer_clk.clkr, |
| }; |
| |
| static const struct regmap_config gpucc_660_regmap_config = { |
| .reg_bits = 32, |
| .reg_stride = 4, |
| .val_bits = 32, |
| .max_register = 0x9034, |
| .fast_io = true, |
| }; |
| |
| static const struct qcom_cc_desc gpucc_sdm660_desc = { |
| .config = &gpucc_660_regmap_config, |
| .clks = gpucc_sdm660_clocks, |
| .num_clks = ARRAY_SIZE(gpucc_sdm660_clocks), |
| .resets = gpucc_sdm660_resets, |
| .num_resets = ARRAY_SIZE(gpucc_sdm660_resets), |
| .gdscs = gpucc_sdm660_gdscs, |
| .num_gdscs = ARRAY_SIZE(gpucc_sdm660_gdscs), |
| }; |
| |
| static const struct of_device_id gpucc_sdm660_match_table[] = { |
| { .compatible = "qcom,gpucc-sdm660" }, |
| { .compatible = "qcom,gpucc-sdm630" }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(of, gpucc_sdm660_match_table); |
| |
| static int gpucc_sdm660_probe(struct platform_device *pdev) |
| { |
| struct regmap *regmap; |
| struct alpha_pll_config gpu_pll_config = { |
| .config_ctl_val = 0x4001055b, |
| .alpha = 0xaaaaab00, |
| .alpha_en_mask = BIT(24), |
| .vco_val = 0x2 << 20, |
| .vco_mask = 0x3 << 20, |
| .main_output_mask = 0x1, |
| }; |
| |
| regmap = qcom_cc_map(pdev, &gpucc_sdm660_desc); |
| if (IS_ERR(regmap)) |
| return PTR_ERR(regmap); |
| |
| /* 800MHz configuration for GPU PLL0 */ |
| gpu_pll_config.l = 0x29; |
| gpu_pll_config.alpha_hi = 0xaa; |
| clk_alpha_pll_configure(&gpu_pll0_pll_out_main, regmap, &gpu_pll_config); |
| |
| /* 740MHz configuration for GPU PLL1 */ |
| gpu_pll_config.l = 0x26; |
| gpu_pll_config.alpha_hi = 0x8a; |
| clk_alpha_pll_configure(&gpu_pll1_pll_out_main, regmap, &gpu_pll_config); |
| |
| return qcom_cc_really_probe(pdev, &gpucc_sdm660_desc, regmap); |
| } |
| |
| static struct platform_driver gpucc_sdm660_driver = { |
| .probe = gpucc_sdm660_probe, |
| .driver = { |
| .name = "gpucc-sdm660", |
| .of_match_table = gpucc_sdm660_match_table, |
| }, |
| }; |
| module_platform_driver(gpucc_sdm660_driver); |
| |
| MODULE_DESCRIPTION("Qualcomm SDM630/SDM660 GPUCC Driver"); |
| MODULE_LICENSE("GPL v2"); |
