mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-27 21:14:44 +08:00
e55d937d8c
Add driver for the GPU clock controller in the Qualcomm SC8280XP platform. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org> [bjorn: Included kernel.h and lower-cased hex numbers] Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220926173025.4747-3-quic_bjorande@quicinc.com
462 lines
12 KiB
C
462 lines
12 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (c) 2021, The Linux Foundation. All rights reserved.
|
|
*/
|
|
|
|
#include <linux/clk-provider.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/regmap.h>
|
|
|
|
#include <dt-bindings/clock/qcom,gpucc-sc8280xp.h>
|
|
|
|
#include "clk-alpha-pll.h"
|
|
#include "clk-branch.h"
|
|
#include "clk-rcg.h"
|
|
#include "clk-regmap-divider.h"
|
|
#include "common.h"
|
|
#include "reset.h"
|
|
#include "gdsc.h"
|
|
|
|
/* Need to match the order of clocks in DT binding */
|
|
enum {
|
|
DT_BI_TCXO,
|
|
DT_GCC_GPU_GPLL0_CLK_SRC,
|
|
DT_GCC_GPU_GPLL0_DIV_CLK_SRC,
|
|
};
|
|
|
|
enum {
|
|
P_BI_TCXO,
|
|
P_GCC_GPU_GPLL0_CLK_SRC,
|
|
P_GCC_GPU_GPLL0_DIV_CLK_SRC,
|
|
P_GPU_CC_PLL0_OUT_MAIN,
|
|
P_GPU_CC_PLL1_OUT_MAIN,
|
|
};
|
|
|
|
static const struct clk_parent_data parent_data_tcxo = { .index = DT_BI_TCXO };
|
|
|
|
static const struct pll_vco lucid_5lpe_vco[] = {
|
|
{ 249600000, 1800000000, 0 },
|
|
};
|
|
|
|
static struct alpha_pll_config gpu_cc_pll0_config = {
|
|
.l = 0x1c,
|
|
.alpha = 0xa555,
|
|
.config_ctl_val = 0x20485699,
|
|
.config_ctl_hi_val = 0x00002261,
|
|
.config_ctl_hi1_val = 0x2a9a699c,
|
|
.test_ctl_val = 0x00000000,
|
|
.test_ctl_hi_val = 0x00000000,
|
|
.test_ctl_hi1_val = 0x01800000,
|
|
.user_ctl_val = 0x00000000,
|
|
.user_ctl_hi_val = 0x00000805,
|
|
.user_ctl_hi1_val = 0x00000000,
|
|
};
|
|
|
|
static struct clk_alpha_pll gpu_cc_pll0 = {
|
|
.offset = 0x0,
|
|
.vco_table = lucid_5lpe_vco,
|
|
.num_vco = ARRAY_SIZE(lucid_5lpe_vco),
|
|
.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
|
|
.clkr = {
|
|
.hw.init = &(const struct clk_init_data){
|
|
.name = "gpu_cc_pll0",
|
|
.parent_data = &parent_data_tcxo,
|
|
.num_parents = 1,
|
|
.ops = &clk_alpha_pll_lucid_5lpe_ops,
|
|
},
|
|
},
|
|
};
|
|
|
|
static 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 = 0x2a9a699c,
|
|
.test_ctl_val = 0x00000000,
|
|
.test_ctl_hi_val = 0x00000000,
|
|
.test_ctl_hi1_val = 0x01800000,
|
|
.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_5lpe_vco,
|
|
.num_vco = ARRAY_SIZE(lucid_5lpe_vco),
|
|
.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID],
|
|
.clkr = {
|
|
.hw.init = &(const struct clk_init_data){
|
|
.name = "gpu_cc_pll1",
|
|
.parent_data = &parent_data_tcxo,
|
|
.num_parents = 1,
|
|
.ops = &clk_alpha_pll_lucid_5lpe_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_GCC_GPU_GPLL0_CLK_SRC, 5 },
|
|
{ P_GCC_GPU_GPLL0_DIV_CLK_SRC, 6 },
|
|
};
|
|
|
|
static const struct clk_parent_data gpu_cc_parent_data_0[] = {
|
|
{ .index = DT_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_PLL1_OUT_MAIN, 3 },
|
|
{ P_GCC_GPU_GPLL0_CLK_SRC, 5 },
|
|
{ P_GCC_GPU_GPLL0_DIV_CLK_SRC, 6 },
|
|
};
|
|
|
|
static const struct clk_parent_data gpu_cc_parent_data_1[] = {
|
|
{ .index = DT_BI_TCXO },
|
|
{ .hw = &gpu_cc_pll1.clkr.hw },
|
|
{ .index = DT_GCC_GPU_GPLL0_CLK_SRC },
|
|
{ .index = DT_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_GCC_GPU_GPLL0_DIV_CLK_SRC, 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 = &(const 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),
|
|
.ops = &clk_rcg2_shared_ops,
|
|
},
|
|
};
|
|
|
|
static const struct freq_tbl ftbl_gpu_cc_hub_clk_src[] = {
|
|
F(200000000, P_GCC_GPU_GPLL0_CLK_SRC, 3, 0, 0),
|
|
F(300000000, P_GCC_GPU_GPLL0_CLK_SRC, 2, 0, 0),
|
|
F(400000000, P_GCC_GPU_GPLL0_CLK_SRC, 1.5, 0, 0),
|
|
{ }
|
|
};
|
|
|
|
static struct clk_rcg2 gpu_cc_hub_clk_src = {
|
|
.cmd_rcgr = 0x117c,
|
|
.mnd_width = 0,
|
|
.hid_width = 5,
|
|
.parent_map = gpu_cc_parent_map_1,
|
|
.freq_tbl = ftbl_gpu_cc_hub_clk_src,
|
|
.clkr.hw.init = &(const struct clk_init_data){
|
|
.name = "gpu_cc_hub_clk_src",
|
|
.parent_data = gpu_cc_parent_data_1,
|
|
.num_parents = ARRAY_SIZE(gpu_cc_parent_data_1),
|
|
.ops = &clk_rcg2_shared_ops,
|
|
},
|
|
};
|
|
|
|
static struct clk_regmap_div gpu_cc_hub_ahb_div_clk_src = {
|
|
.reg = 0x11c0,
|
|
.shift = 0,
|
|
.width = 4,
|
|
.clkr.hw.init = &(const struct clk_init_data) {
|
|
.name = "gpu_cc_hub_ahb_div_clk_src",
|
|
.parent_hws = (const struct clk_hw*[]){
|
|
&gpu_cc_hub_clk_src.clkr.hw,
|
|
},
|
|
.num_parents = 1,
|
|
.flags = CLK_SET_RATE_PARENT,
|
|
.ops = &clk_regmap_div_ro_ops,
|
|
},
|
|
};
|
|
|
|
static struct clk_regmap_div gpu_cc_hub_cx_int_div_clk_src = {
|
|
.reg = 0x11bc,
|
|
.shift = 0,
|
|
.width = 4,
|
|
.clkr.hw.init = &(const struct clk_init_data) {
|
|
.name = "gpu_cc_hub_cx_int_div_clk_src",
|
|
.parent_hws = (const struct clk_hw*[]){
|
|
&gpu_cc_hub_clk_src.clkr.hw,
|
|
},
|
|
.num_parents = 1,
|
|
.flags = CLK_SET_RATE_PARENT,
|
|
.ops = &clk_regmap_div_ro_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 = &(const struct clk_init_data){
|
|
.name = "gpu_cc_ahb_clk",
|
|
.parent_hws = (const struct clk_hw*[]){
|
|
&gpu_cc_hub_ahb_div_clk_src.clkr.hw,
|
|
},
|
|
.num_parents = 1,
|
|
.flags = CLK_SET_RATE_PARENT,
|
|
.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 = &(const struct clk_init_data){
|
|
.name = "gpu_cc_crc_ahb_clk",
|
|
.parent_hws = (const struct clk_hw*[]){
|
|
&gpu_cc_hub_ahb_div_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 = &(const 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_aon_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 = &(const 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 = &(const struct clk_init_data){
|
|
.name = "gpu_cc_cxo_aon_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 = &(const struct clk_init_data){
|
|
.name = "gpu_cc_gx_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_hlos1_vote_gpu_smmu_clk = {
|
|
.halt_reg = 0x5000,
|
|
.halt_check = BRANCH_HALT_VOTED,
|
|
.clkr = {
|
|
.enable_reg = 0x5000,
|
|
.enable_mask = BIT(0),
|
|
.hw.init = &(const struct clk_init_data){
|
|
.name = "gpu_cc_hlos1_vote_gpu_smmu_clk",
|
|
.ops = &clk_branch2_ops,
|
|
},
|
|
},
|
|
};
|
|
|
|
static struct clk_branch gpu_cc_hub_aon_clk = {
|
|
.halt_reg = 0x1178,
|
|
.halt_check = BRANCH_HALT,
|
|
.clkr = {
|
|
.enable_reg = 0x1178,
|
|
.enable_mask = BIT(0),
|
|
.hw.init = &(const struct clk_init_data){
|
|
.name = "gpu_cc_hub_aon_clk",
|
|
.parent_hws = (const struct clk_hw*[]){
|
|
&gpu_cc_hub_clk_src.clkr.hw,
|
|
},
|
|
.num_parents = 1,
|
|
.flags = CLK_SET_RATE_PARENT,
|
|
.ops = &clk_branch2_aon_ops,
|
|
},
|
|
},
|
|
};
|
|
|
|
static struct clk_branch gpu_cc_hub_cx_int_clk = {
|
|
.halt_reg = 0x1204,
|
|
.halt_check = BRANCH_HALT,
|
|
.clkr = {
|
|
.enable_reg = 0x1204,
|
|
.enable_mask = BIT(0),
|
|
.hw.init = &(const struct clk_init_data){
|
|
.name = "gpu_cc_hub_cx_int_clk",
|
|
.parent_hws = (const struct clk_hw*[]){
|
|
&gpu_cc_hub_cx_int_div_clk_src.clkr.hw,
|
|
},
|
|
.num_parents = 1,
|
|
.flags = CLK_SET_RATE_PARENT,
|
|
.ops = &clk_branch2_aon_ops,
|
|
},
|
|
},
|
|
};
|
|
|
|
static struct clk_branch gpu_cc_sleep_clk = {
|
|
.halt_reg = 0x1090,
|
|
.halt_check = BRANCH_HALT_VOTED,
|
|
.clkr = {
|
|
.enable_reg = 0x1090,
|
|
.enable_mask = BIT(0),
|
|
.hw.init = &(const struct clk_init_data){
|
|
.name = "gpu_cc_sleep_clk",
|
|
.ops = &clk_branch2_ops,
|
|
},
|
|
},
|
|
};
|
|
|
|
static struct clk_regmap *gpu_cc_sc8280xp_clocks[] = {
|
|
[GPU_CC_AHB_CLK] = &gpu_cc_ahb_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_GX_GMU_CLK] = &gpu_cc_gx_gmu_clk.clkr,
|
|
[GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK] = &gpu_cc_hlos1_vote_gpu_smmu_clk.clkr,
|
|
[GPU_CC_HUB_AHB_DIV_CLK_SRC] = &gpu_cc_hub_ahb_div_clk_src.clkr,
|
|
[GPU_CC_HUB_AON_CLK] = &gpu_cc_hub_aon_clk.clkr,
|
|
[GPU_CC_HUB_CLK_SRC] = &gpu_cc_hub_clk_src.clkr,
|
|
[GPU_CC_HUB_CX_INT_CLK] = &gpu_cc_hub_cx_int_clk.clkr,
|
|
[GPU_CC_HUB_CX_INT_DIV_CLK_SRC] = &gpu_cc_hub_cx_int_div_clk_src.clkr,
|
|
[GPU_CC_PLL0] = &gpu_cc_pll0.clkr,
|
|
[GPU_CC_PLL1] = &gpu_cc_pll1.clkr,
|
|
[GPU_CC_SLEEP_CLK] = &gpu_cc_sleep_clk.clkr,
|
|
};
|
|
|
|
static struct gdsc cx_gdsc = {
|
|
.gdscr = 0x106c,
|
|
.gds_hw_ctrl = 0x1540,
|
|
.pd = {
|
|
.name = "cx_gdsc",
|
|
},
|
|
.pwrsts = PWRSTS_OFF_ON,
|
|
.flags = VOTABLE | RETAIN_FF_ENABLE,
|
|
};
|
|
|
|
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 | RETAIN_FF_ENABLE,
|
|
};
|
|
|
|
static struct gdsc *gpu_cc_sc8280xp_gdscs[] = {
|
|
[GPU_CC_CX_GDSC] = &cx_gdsc,
|
|
[GPU_CC_GX_GDSC] = &gx_gdsc,
|
|
};
|
|
|
|
static const struct regmap_config gpu_cc_sc8280xp_regmap_config = {
|
|
.reg_bits = 32,
|
|
.reg_stride = 4,
|
|
.val_bits = 32,
|
|
.max_register = 0x8030,
|
|
.fast_io = true,
|
|
};
|
|
|
|
static struct qcom_cc_desc gpu_cc_sc8280xp_desc = {
|
|
.config = &gpu_cc_sc8280xp_regmap_config,
|
|
.clks = gpu_cc_sc8280xp_clocks,
|
|
.num_clks = ARRAY_SIZE(gpu_cc_sc8280xp_clocks),
|
|
.gdscs = gpu_cc_sc8280xp_gdscs,
|
|
.num_gdscs = ARRAY_SIZE(gpu_cc_sc8280xp_gdscs),
|
|
};
|
|
|
|
static int gpu_cc_sc8280xp_probe(struct platform_device *pdev)
|
|
{
|
|
struct regmap *regmap;
|
|
|
|
regmap = qcom_cc_map(pdev, &gpu_cc_sc8280xp_desc);
|
|
if (IS_ERR(regmap))
|
|
return PTR_ERR(regmap);
|
|
|
|
clk_lucid_pll_configure(&gpu_cc_pll0, regmap, &gpu_cc_pll0_config);
|
|
clk_lucid_pll_configure(&gpu_cc_pll1, regmap, &gpu_cc_pll1_config);
|
|
|
|
/*
|
|
* Keep the clocks always-ON
|
|
* GPU_CC_CB_CLK, GPU_CC_CXO_CLK
|
|
*/
|
|
regmap_update_bits(regmap, 0x1170, BIT(0), BIT(0));
|
|
regmap_update_bits(regmap, 0x109c, BIT(0), BIT(0));
|
|
|
|
return qcom_cc_really_probe(pdev, &gpu_cc_sc8280xp_desc, regmap);
|
|
}
|
|
|
|
static const struct of_device_id gpu_cc_sc8280xp_match_table[] = {
|
|
{ .compatible = "qcom,sc8280xp-gpucc" },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, gpu_cc_sc8280xp_match_table);
|
|
|
|
static struct platform_driver gpu_cc_sc8280xp_driver = {
|
|
.probe = gpu_cc_sc8280xp_probe,
|
|
.driver = {
|
|
.name = "gpu_cc-sc8280xp",
|
|
.of_match_table = gpu_cc_sc8280xp_match_table,
|
|
},
|
|
};
|
|
module_platform_driver(gpu_cc_sc8280xp_driver);
|
|
|
|
MODULE_DESCRIPTION("Qualcomm SC8280XP GPU clock controller");
|
|
MODULE_LICENSE("GPL");
|