// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2020, AngeloGioacchino Del Regno
* <[email protected]>
*/
#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/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 const 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->dev, &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");
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