--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2019-2020, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2023, Linaro Limited
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/regmap.h>
+
+#include <dt-bindings/clock/qcom,sm6115-gpucc.h>
+
+#include "clk-alpha-pll.h"
+#include "clk-branch.h"
+#include "clk-rcg.h"
+#include "clk-regmap.h"
+#include "clk-regmap-divider.h"
+#include "clk-regmap-mux.h"
+#include "clk-regmap-phy-mux.h"
+#include "gdsc.h"
+#include "reset.h"
+
+enum {
+ DT_BI_TCXO,
+ DT_GCC_GPU_GPLL0_CLK_SRC,
+ DT_GCC_GPU_GPLL0_DIV_CLK_SRC,
+};
+
+enum {
+ P_BI_TCXO,
+ P_GPLL0_OUT_MAIN,
+ P_GPLL0_OUT_MAIN_DIV,
+ P_GPU_CC_PLL0_OUT_AUX2,
+ P_GPU_CC_PLL0_OUT_MAIN,
+ P_GPU_CC_PLL1_OUT_AUX,
+ P_GPU_CC_PLL1_OUT_MAIN,
+};
+
+static struct pll_vco default_vco[] = {
+ { 1000000000, 2000000000, 0 },
+};
+
+static struct pll_vco pll1_vco[] = {
+ { 500000000, 1000000000, 2 },
+};
+
+static const struct alpha_pll_config gpu_cc_pll0_config = {
+ .l = 0x3e,
+ .alpha = 0,
+ .alpha_hi = 0x80,
+ .vco_val = 0x0 << 20,
+ .vco_mask = GENMASK(21, 20),
+ .alpha_en_mask = BIT(24),
+ .main_output_mask = BIT(0),
+ .aux_output_mask = BIT(1),
+ .aux2_output_mask = BIT(2),
+ .config_ctl_val = 0x4001055b,
+ .test_ctl_hi1_val = 0x1,
+};
+
+/* 1200MHz configuration */
+static struct clk_alpha_pll gpu_cc_pll0 = {
+ .offset = 0x0,
+ .vco_table = default_vco,
+ .num_vco = ARRAY_SIZE(default_vco),
+ .flags = SUPPORTS_DYNAMIC_UPDATE,
+ .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
+ .clkr = {
+ .hw.init = &(struct clk_init_data){
+ .name = "gpu_cc_pll0",
+ .parent_data = &(const struct clk_parent_data){
+ .index = DT_BI_TCXO,
+ },
+ .num_parents = 1,
+ .ops = &clk_alpha_pll_ops,
+ },
+ },
+};
+
+static const struct clk_div_table post_div_table_gpu_cc_pll0_out_aux2[] = {
+ { 0x0, 1 },
+ { }
+};
+
+static struct clk_alpha_pll_postdiv gpu_cc_pll0_out_aux2 = {
+ .offset = 0x0,
+ .post_div_shift = 8,
+ .post_div_table = post_div_table_gpu_cc_pll0_out_aux2,
+ .num_post_div = ARRAY_SIZE(post_div_table_gpu_cc_pll0_out_aux2),
+ .width = 4,
+ .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
+ .clkr.hw.init = &(struct clk_init_data){
+ .name = "gpu_cc_pll0_out_aux2",
+ .parent_hws = (const struct clk_hw*[]) {
+ &gpu_cc_pll0.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_alpha_pll_postdiv_ops,
+ },
+};
+
+/* 640MHz configuration */
+static const struct alpha_pll_config gpu_cc_pll1_config = {
+ .l = 0x21,
+ .alpha = 0x55555555,
+ .alpha_hi = 0x55,
+ .alpha_en_mask = BIT(24),
+ .vco_val = 0x2 << 20,
+ .vco_mask = GENMASK(21, 20),
+ .main_output_mask = BIT(0),
+ .aux_output_mask = BIT(1),
+ .config_ctl_val = 0x4001055b,
+ .test_ctl_hi1_val = 0x1,
+};
+
+static struct clk_alpha_pll gpu_cc_pll1 = {
+ .offset = 0x100,
+ .vco_table = pll1_vco,
+ .num_vco = ARRAY_SIZE(pll1_vco),
+ .flags = SUPPORTS_DYNAMIC_UPDATE,
+ .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
+ .clkr = {
+ .hw.init = &(struct clk_init_data){
+ .name = "gpu_cc_pll1",
+ .parent_data = &(const struct clk_parent_data){
+ .index = DT_BI_TCXO,
+ },
+ .num_parents = 1,
+ .ops = &clk_alpha_pll_ops,
+ },
+ },
+};
+
+static const struct clk_div_table post_div_table_gpu_cc_pll1_out_aux[] = {
+ { 0x0, 1 },
+ { }
+};
+
+static struct clk_alpha_pll_postdiv gpu_cc_pll1_out_aux = {
+ .offset = 0x100,
+ .post_div_shift = 15,
+ .post_div_table = post_div_table_gpu_cc_pll1_out_aux,
+ .num_post_div = ARRAY_SIZE(post_div_table_gpu_cc_pll1_out_aux),
+ .width = 3,
+ .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT],
+ .clkr.hw.init = &(struct clk_init_data){
+ .name = "gpu_cc_pll1_out_aux",
+ .parent_hws = (const struct clk_hw*[]) {
+ &gpu_cc_pll1.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_alpha_pll_postdiv_ops,
+ },
+};
+
+static const struct parent_map gpu_cc_parent_map_0[] = {
+ { P_BI_TCXO, 0 },
+ { P_GPU_CC_PLL0_OUT_MAIN, 1 },
+ { 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[] = {
+ { .index = P_BI_TCXO },
+ { .hw = &gpu_cc_pll0.clkr.hw },
+ { .hw = &gpu_cc_pll1.clkr.hw },
+ { .index = DT_GCC_GPU_GPLL0_CLK_SRC },
+ { .index = DT_GCC_GPU_GPLL0_DIV_CLK_SRC },
+};
+
+static const struct parent_map gpu_cc_parent_map_1[] = {
+ { P_BI_TCXO, 0 },
+ { P_GPU_CC_PLL0_OUT_AUX2, 2 },
+ { P_GPU_CC_PLL1_OUT_AUX, 3 },
+ { P_GPLL0_OUT_MAIN, 5 },
+};
+
+static const struct clk_parent_data gpu_cc_parent_data_1[] = {
+ { .index = P_BI_TCXO },
+ { .hw = &gpu_cc_pll0_out_aux2.clkr.hw },
+ { .hw = &gpu_cc_pll1_out_aux.clkr.hw },
+ { .index = DT_GCC_GPU_GPLL0_CLK_SRC },
+};
+
+static const struct freq_tbl ftbl_gpu_cc_gmu_clk_src[] = {
+ F(200000000, P_GPLL0_OUT_MAIN, 3, 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 const struct freq_tbl ftbl_gpu_cc_gx_gfx3d_clk_src[] = {
+ F(320000000, P_GPU_CC_PLL1_OUT_AUX, 2, 0, 0),
+ F(465000000, P_GPU_CC_PLL1_OUT_AUX, 2, 0, 0),
+ F(600000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0),
+ F(745000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0),
+ F(820000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0),
+ F(900000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0),
+ F(950000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0),
+ F(980000000, P_GPU_CC_PLL0_OUT_AUX2, 2, 0, 0),
+ { }
+};
+
+static struct clk_rcg2 gpu_cc_gx_gfx3d_clk_src = {
+ .cmd_rcgr = 0x101c,
+ .mnd_width = 0,
+ .hid_width = 5,
+ .parent_map = gpu_cc_parent_map_1,
+ .freq_tbl = ftbl_gpu_cc_gx_gfx3d_clk_src,
+ .clkr.hw.init = &(struct clk_init_data){
+ .name = "gpu_cc_gx_gfx3d_clk_src",
+ .parent_data = gpu_cc_parent_data_1,
+ .num_parents = ARRAY_SIZE(gpu_cc_parent_data_1),
+ .flags = CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE,
+ .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",
+ .flags = CLK_IS_CRITICAL,
+ .ops = &clk_branch2_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_gfx3d_clk = {
+ .halt_reg = 0x10a4,
+ .halt_check = BRANCH_HALT_DELAY,
+ .clkr = {
+ .enable_reg = 0x10a4,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "gpu_cc_cx_gfx3d_clk",
+ .parent_data = &(const struct clk_parent_data){
+ .hw = &gpu_cc_gx_gfx3d_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .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_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 clk_branch gpu_cc_gx_cxo_clk = {
+ .halt_reg = 0x1060,
+ .halt_check = BRANCH_HALT_DELAY,
+ .clkr = {
+ .enable_reg = 0x1060,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "gpu_cc_gx_cxo_clk",
+ .flags = CLK_IS_CRITICAL,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch gpu_cc_gx_gfx3d_clk = {
+ .halt_reg = 0x1054,
+ .halt_check = BRANCH_HALT_SKIP,
+ .clkr = {
+ .enable_reg = 0x1054,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "gpu_cc_gx_gfx3d_clk",
+ .parent_data = &(const struct clk_parent_data){
+ .hw = &gpu_cc_gx_gfx3d_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
+static struct clk_branch gpu_cc_sleep_clk = {
+ .halt_reg = 0x1090,
+ .halt_check = BRANCH_HALT_DELAY,
+ .clkr = {
+ .enable_reg = 0x1090,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "gpu_cc_sleep_clk",
+ .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,
+ .resets = (unsigned int []){ GPU_GX_BCR },
+ .reset_count = 1,
+ .pd = {
+ .name = "gpu_gx_gdsc",
+ },
+ .parent = &gpu_cx_gdsc.pd,
+ .pwrsts = PWRSTS_OFF_ON,
+ .flags = CLAMP_IO | SW_RESET | VOTABLE,
+};
+
+static struct clk_regmap *gpu_cc_sm6115_clocks[] = {
+ [GPU_CC_AHB_CLK] = &gpu_cc_ahb_clk.clkr,
+ [GPU_CC_CRC_AHB_CLK] = &gpu_cc_crc_ahb_clk.clkr,
+ [GPU_CC_CX_GFX3D_CLK] = &gpu_cc_cx_gfx3d_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_CXO_CLK] = &gpu_cc_gx_cxo_clk.clkr,
+ [GPU_CC_GX_GFX3D_CLK] = &gpu_cc_gx_gfx3d_clk.clkr,
+ [GPU_CC_GX_GFX3D_CLK_SRC] = &gpu_cc_gx_gfx3d_clk_src.clkr,
+ [GPU_CC_PLL0] = &gpu_cc_pll0.clkr,
+ [GPU_CC_PLL0_OUT_AUX2] = &gpu_cc_pll0_out_aux2.clkr,
+ [GPU_CC_PLL1] = &gpu_cc_pll1.clkr,
+ [GPU_CC_PLL1_OUT_AUX] = &gpu_cc_pll1_out_aux.clkr,
+ [GPU_CC_SLEEP_CLK] = &gpu_cc_sleep_clk.clkr,
+ [GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK] = &gpu_cc_hlos1_vote_gpu_smmu_clk.clkr,
+};
+
+static const struct qcom_reset_map gpu_cc_sm6115_resets[] = {
+ [GPU_GX_BCR] = { 0x1008 },
+};
+
+static struct gdsc *gpu_cc_sm6115_gdscs[] = {
+ [GPU_CX_GDSC] = &gpu_cx_gdsc,
+ [GPU_GX_GDSC] = &gpu_gx_gdsc,
+};
+
+static const struct regmap_config gpu_cc_sm6115_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = 0x9000,
+ .fast_io = true,
+};
+
+static const struct qcom_cc_desc gpu_cc_sm6115_desc = {
+ .config = &gpu_cc_sm6115_regmap_config,
+ .clks = gpu_cc_sm6115_clocks,
+ .num_clks = ARRAY_SIZE(gpu_cc_sm6115_clocks),
+ .resets = gpu_cc_sm6115_resets,
+ .num_resets = ARRAY_SIZE(gpu_cc_sm6115_resets),
+ .gdscs = gpu_cc_sm6115_gdscs,
+ .num_gdscs = ARRAY_SIZE(gpu_cc_sm6115_gdscs),
+};
+
+static const struct of_device_id gpu_cc_sm6115_match_table[] = {
+ { .compatible = "qcom,sm6115-gpucc" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, gpu_cc_sm6115_match_table);
+
+static int gpu_cc_sm6115_probe(struct platform_device *pdev)
+{
+ struct regmap *regmap;
+
+ regmap = qcom_cc_map(pdev, &gpu_cc_sm6115_desc);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ clk_alpha_pll_configure(&gpu_cc_pll0, regmap, &gpu_cc_pll0_config);
+ clk_alpha_pll_configure(&gpu_cc_pll1, regmap, &gpu_cc_pll1_config);
+
+ /* Set recommended WAKEUP/SLEEP settings for the gpu_cc_cx_gmu_clk */
+ qcom_branch_set_wakeup(regmap, gpu_cc_cx_gmu_clk, 0xf);
+ qcom_branch_set_sleep(regmap, gpu_cc_cx_gmu_clk, 0xf);
+
+ qcom_branch_set_force_mem_core(regmap, gpu_cc_gx_gfx3d_clk, true);
+ qcom_branch_set_force_periph_on(regmap, gpu_cc_gx_gfx3d_clk, true);
+
+ return qcom_cc_really_probe(pdev, &gpu_cc_sm6115_desc, regmap);
+}
+
+static struct platform_driver gpu_cc_sm6115_driver = {
+ .probe = gpu_cc_sm6115_probe,
+ .driver = {
+ .name = "sm6115-gpucc",
+ .of_match_table = gpu_cc_sm6115_match_table,
+ },
+};
+module_platform_driver(gpu_cc_sm6115_driver);
+
+MODULE_DESCRIPTION("QTI GPU_CC SM6115 Driver");
+MODULE_LICENSE("GPL");
projects / platform / kernel / linux-rpi.git / commitdiff