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1// SPDX-License-Identifier: GPL-2.0+2/*3 * Copyright (C) 2016 Freescale Semiconductor, Inc.4 * Copyright 2017~2018 NXP5 *6 * Author: Dong Aisheng <aisheng.dong@nxp.com>7 *8 */9 10#include <dt-bindings/clock/imx7ulp-clock.h>11#include <linux/clk-provider.h>12#include <linux/err.h>13#include <linux/init.h>14#include <linux/io.h>15#include <linux/of.h>16#include <linux/of_address.h>17#include <linux/platform_device.h>18#include <linux/slab.h>19 20#include "clk.h"21 22static const char * const pll_pre_sels[] = { "sosc", "firc", };23static const char * const spll_pfd_sels[] = { "spll_pfd0", "spll_pfd1", "spll_pfd2", "spll_pfd3", };24static const char * const spll_sels[] = { "spll", "spll_pfd_sel", };25static const char * const apll_pfd_sels[] = { "apll_pfd0", "apll_pfd1", "apll_pfd2", "apll_pfd3", };26static const char * const apll_sels[] = { "apll", "apll_pfd_sel", };27static const char * const scs_sels[] = { "dummy", "sosc", "sirc", "firc", "dummy", "apll_sel", "spll_sel", "dummy", };28static const char * const ddr_sels[] = { "apll_pfd_sel", "dummy", "dummy", "dummy", };29static const char * const nic_sels[] = { "firc", "ddr_clk", };30static const char * const periph_plat_sels[] = { "dummy", "nic1_bus_clk", "nic1_clk", "ddr_clk", "apll_pfd2", "apll_pfd1", "apll_pfd0", "upll", };31static const char * const periph_bus_sels[] = { "dummy", "sosc_bus_clk", "dummy", "firc_bus_clk", "rosc", "nic1_bus_clk", "nic1_clk", "spll_bus_clk", };32static const char * const arm_sels[] = { "core", "dummy", "dummy", "hsrun_core", };33 34/* used by sosc/sirc/firc/ddr/spll/apll dividers */35static const struct clk_div_table ulp_div_table[] = {36 { .val = 1, .div = 1, },37 { .val = 2, .div = 2, },38 { .val = 3, .div = 4, },39 { .val = 4, .div = 8, },40 { .val = 5, .div = 16, },41 { .val = 6, .div = 32, },42 { .val = 7, .div = 64, },43 { /* sentinel */ },44};45 46static void __init imx7ulp_clk_scg1_init(struct device_node *np)47{48 struct clk_hw_onecell_data *clk_data;49 struct clk_hw **hws;50 void __iomem *base;51 52 clk_data = kzalloc(struct_size(clk_data, hws, IMX7ULP_CLK_SCG1_END),53 GFP_KERNEL);54 if (!clk_data)55 return;56 57 clk_data->num = IMX7ULP_CLK_SCG1_END;58 hws = clk_data->hws;59 60 hws[IMX7ULP_CLK_DUMMY] = imx_clk_hw_fixed("dummy", 0);61 62 hws[IMX7ULP_CLK_ROSC] = imx_get_clk_hw_by_name(np, "rosc");63 hws[IMX7ULP_CLK_SOSC] = imx_get_clk_hw_by_name(np, "sosc");64 hws[IMX7ULP_CLK_SIRC] = imx_get_clk_hw_by_name(np, "sirc");65 hws[IMX7ULP_CLK_FIRC] = imx_get_clk_hw_by_name(np, "firc");66 hws[IMX7ULP_CLK_UPLL] = imx_get_clk_hw_by_name(np, "upll");67 68 /* SCG1 */69 base = of_iomap(np, 0);70 WARN_ON(!base);71 72 /* NOTE: xPLL config can't be changed when xPLL is enabled */73 hws[IMX7ULP_CLK_APLL_PRE_SEL] = imx_clk_hw_mux_flags("apll_pre_sel", base + 0x508, 0, 1, pll_pre_sels, ARRAY_SIZE(pll_pre_sels), CLK_SET_PARENT_GATE);74 hws[IMX7ULP_CLK_SPLL_PRE_SEL] = imx_clk_hw_mux_flags("spll_pre_sel", base + 0x608, 0, 1, pll_pre_sels, ARRAY_SIZE(pll_pre_sels), CLK_SET_PARENT_GATE);75 76 /* name parent_name reg shift width flags */77 hws[IMX7ULP_CLK_APLL_PRE_DIV] = imx_clk_hw_divider_flags("apll_pre_div", "apll_pre_sel", base + 0x508, 8, 3, CLK_SET_RATE_GATE);78 hws[IMX7ULP_CLK_SPLL_PRE_DIV] = imx_clk_hw_divider_flags("spll_pre_div", "spll_pre_sel", base + 0x608, 8, 3, CLK_SET_RATE_GATE);79 80 /* name parent_name base */81 hws[IMX7ULP_CLK_APLL] = imx_clk_hw_pllv4(IMX_PLLV4_IMX7ULP, "apll", "apll_pre_div", base + 0x500);82 hws[IMX7ULP_CLK_SPLL] = imx_clk_hw_pllv4(IMX_PLLV4_IMX7ULP, "spll", "spll_pre_div", base + 0x600);83 84 /* APLL PFDs */85 hws[IMX7ULP_CLK_APLL_PFD0] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "apll_pfd0", "apll", base + 0x50c, 0);86 hws[IMX7ULP_CLK_APLL_PFD1] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "apll_pfd1", "apll", base + 0x50c, 1);87 hws[IMX7ULP_CLK_APLL_PFD2] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "apll_pfd2", "apll", base + 0x50c, 2);88 hws[IMX7ULP_CLK_APLL_PFD3] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "apll_pfd3", "apll", base + 0x50c, 3);89 90 /* SPLL PFDs */91 hws[IMX7ULP_CLK_SPLL_PFD0] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "spll_pfd0", "spll", base + 0x60C, 0);92 hws[IMX7ULP_CLK_SPLL_PFD1] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "spll_pfd1", "spll", base + 0x60C, 1);93 hws[IMX7ULP_CLK_SPLL_PFD2] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "spll_pfd2", "spll", base + 0x60C, 2);94 hws[IMX7ULP_CLK_SPLL_PFD3] = imx_clk_hw_pfdv2(IMX_PFDV2_IMX7ULP, "spll_pfd3", "spll", base + 0x60C, 3);95 96 /* PLL Mux */97 hws[IMX7ULP_CLK_APLL_PFD_SEL] = imx_clk_hw_mux_flags("apll_pfd_sel", base + 0x508, 14, 2, apll_pfd_sels, ARRAY_SIZE(apll_pfd_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);98 hws[IMX7ULP_CLK_SPLL_PFD_SEL] = imx_clk_hw_mux_flags("spll_pfd_sel", base + 0x608, 14, 2, spll_pfd_sels, ARRAY_SIZE(spll_pfd_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);99 hws[IMX7ULP_CLK_APLL_SEL] = imx_clk_hw_mux_flags("apll_sel", base + 0x508, 1, 1, apll_sels, ARRAY_SIZE(apll_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);100 hws[IMX7ULP_CLK_SPLL_SEL] = imx_clk_hw_mux_flags("spll_sel", base + 0x608, 1, 1, spll_sels, ARRAY_SIZE(spll_sels), CLK_SET_RATE_PARENT | CLK_SET_PARENT_GATE);101 102 hws[IMX7ULP_CLK_SPLL_BUS_CLK] = imx_clk_hw_divider_gate("spll_bus_clk", "spll_sel", CLK_SET_RATE_GATE, base + 0x604, 8, 3, 0, ulp_div_table, &imx_ccm_lock);103 104 /* scs/ddr/nic select different clock source requires that clock to be enabled first */105 hws[IMX7ULP_CLK_SYS_SEL] = imx_clk_hw_mux2("scs_sel", base + 0x14, 24, 4, scs_sels, ARRAY_SIZE(scs_sels));106 hws[IMX7ULP_CLK_HSRUN_SYS_SEL] = imx_clk_hw_mux2("hsrun_scs_sel", base + 0x1c, 24, 4, scs_sels, ARRAY_SIZE(scs_sels));107 hws[IMX7ULP_CLK_NIC_SEL] = imx_clk_hw_mux2("nic_sel", base + 0x40, 28, 1, nic_sels, ARRAY_SIZE(nic_sels));108 hws[IMX7ULP_CLK_DDR_SEL] = imx_clk_hw_mux_flags("ddr_sel", base + 0x30, 24, 2, ddr_sels, ARRAY_SIZE(ddr_sels), CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE);109 110 hws[IMX7ULP_CLK_CORE_DIV] = imx_clk_hw_divider_flags("divcore", "scs_sel", base + 0x14, 16, 4, CLK_SET_RATE_PARENT);111 hws[IMX7ULP_CLK_CORE] = imx_clk_hw_cpu("core", "divcore", hws[IMX7ULP_CLK_CORE_DIV]->clk, hws[IMX7ULP_CLK_SYS_SEL]->clk, hws[IMX7ULP_CLK_SPLL_SEL]->clk, hws[IMX7ULP_CLK_FIRC]->clk);112 hws[IMX7ULP_CLK_HSRUN_CORE_DIV] = imx_clk_hw_divider_flags("hsrun_divcore", "hsrun_scs_sel", base + 0x1c, 16, 4, CLK_SET_RATE_PARENT);113 hws[IMX7ULP_CLK_HSRUN_CORE] = imx_clk_hw_cpu("hsrun_core", "hsrun_divcore", hws[IMX7ULP_CLK_HSRUN_CORE_DIV]->clk, hws[IMX7ULP_CLK_HSRUN_SYS_SEL]->clk, hws[IMX7ULP_CLK_SPLL_SEL]->clk, hws[IMX7ULP_CLK_FIRC]->clk);114 115 hws[IMX7ULP_CLK_DDR_DIV] = imx_clk_hw_divider_gate("ddr_clk", "ddr_sel", CLK_SET_RATE_PARENT | CLK_IS_CRITICAL, base + 0x30, 0, 3,116 0, ulp_div_table, &imx_ccm_lock);117 118 hws[IMX7ULP_CLK_NIC0_DIV] = imx_clk_hw_divider_flags("nic0_clk", "nic_sel", base + 0x40, 24, 4, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);119 hws[IMX7ULP_CLK_NIC1_DIV] = imx_clk_hw_divider_flags("nic1_clk", "nic0_clk", base + 0x40, 16, 4, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);120 hws[IMX7ULP_CLK_NIC1_BUS_DIV] = imx_clk_hw_divider_flags("nic1_bus_clk", "nic0_clk", base + 0x40, 4, 4, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);121 122 hws[IMX7ULP_CLK_GPU_DIV] = imx_clk_hw_divider("gpu_clk", "nic0_clk", base + 0x40, 20, 4);123 124 hws[IMX7ULP_CLK_SOSC_BUS_CLK] = imx_clk_hw_divider_gate("sosc_bus_clk", "sosc", 0, base + 0x104, 8, 3,125 CLK_DIVIDER_READ_ONLY, ulp_div_table, &imx_ccm_lock);126 hws[IMX7ULP_CLK_FIRC_BUS_CLK] = imx_clk_hw_divider_gate("firc_bus_clk", "firc", 0, base + 0x304, 8, 3,127 CLK_DIVIDER_READ_ONLY, ulp_div_table, &imx_ccm_lock);128 129 imx_check_clk_hws(hws, clk_data->num);130 131 of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);132}133CLK_OF_DECLARE(imx7ulp_clk_scg1, "fsl,imx7ulp-scg1", imx7ulp_clk_scg1_init);134 135static void __init imx7ulp_clk_pcc2_init(struct device_node *np)136{137 struct clk_hw_onecell_data *clk_data;138 struct clk_hw **hws;139 void __iomem *base;140 141 clk_data = kzalloc(struct_size(clk_data, hws, IMX7ULP_CLK_PCC2_END),142 GFP_KERNEL);143 if (!clk_data)144 return;145 146 clk_data->num = IMX7ULP_CLK_PCC2_END;147 hws = clk_data->hws;148 149 /* PCC2 */150 base = of_iomap(np, 0);151 WARN_ON(!base);152 153 hws[IMX7ULP_CLK_DMA1] = imx_clk_hw_gate("dma1", "nic1_clk", base + 0x20, 30);154 hws[IMX7ULP_CLK_RGPIO2P1] = imx_clk_hw_gate("rgpio2p1", "nic1_bus_clk", base + 0x3c, 30);155 hws[IMX7ULP_CLK_DMA_MUX1] = imx_clk_hw_gate("dma_mux1", "nic1_bus_clk", base + 0x84, 30);156 hws[IMX7ULP_CLK_CAAM] = imx_clk_hw_gate("caam", "nic1_clk", base + 0x90, 30);157 hws[IMX7ULP_CLK_LPTPM4] = imx7ulp_clk_hw_composite("lptpm4", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x94);158 hws[IMX7ULP_CLK_LPTPM5] = imx7ulp_clk_hw_composite("lptpm5", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x98);159 hws[IMX7ULP_CLK_LPIT1] = imx7ulp_clk_hw_composite("lpit1", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x9c);160 hws[IMX7ULP_CLK_LPSPI2] = imx7ulp_clk_hw_composite("lpspi2", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xa4);161 hws[IMX7ULP_CLK_LPSPI3] = imx7ulp_clk_hw_composite("lpspi3", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xa8);162 hws[IMX7ULP_CLK_LPI2C4] = imx7ulp_clk_hw_composite("lpi2c4", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xac);163 hws[IMX7ULP_CLK_LPI2C5] = imx7ulp_clk_hw_composite("lpi2c5", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xb0);164 hws[IMX7ULP_CLK_LPUART4] = imx7ulp_clk_hw_composite("lpuart4", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xb4);165 hws[IMX7ULP_CLK_LPUART5] = imx7ulp_clk_hw_composite("lpuart5", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xb8);166 hws[IMX7ULP_CLK_FLEXIO1] = imx7ulp_clk_hw_composite("flexio1", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0xc4);167 hws[IMX7ULP_CLK_USB0] = imx7ulp_clk_hw_composite("usb0", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xcc);168 hws[IMX7ULP_CLK_USB1] = imx7ulp_clk_hw_composite("usb1", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xd0);169 hws[IMX7ULP_CLK_USB_PHY] = imx_clk_hw_gate("usb_phy", "nic1_bus_clk", base + 0xd4, 30);170 hws[IMX7ULP_CLK_USDHC0] = imx7ulp_clk_hw_composite("usdhc0", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xdc);171 hws[IMX7ULP_CLK_USDHC1] = imx7ulp_clk_hw_composite("usdhc1", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xe0);172 hws[IMX7ULP_CLK_WDG1] = imx7ulp_clk_hw_composite("wdg1", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, true, true, base + 0xf4);173 hws[IMX7ULP_CLK_WDG2] = imx7ulp_clk_hw_composite("wdg2", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, true, true, base + 0x10c);174 175 imx_check_clk_hws(hws, clk_data->num);176 177 of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);178 179 imx_register_uart_clocks();180}181CLK_OF_DECLARE(imx7ulp_clk_pcc2, "fsl,imx7ulp-pcc2", imx7ulp_clk_pcc2_init);182 183static void __init imx7ulp_clk_pcc3_init(struct device_node *np)184{185 struct clk_hw_onecell_data *clk_data;186 struct clk_hw **hws;187 void __iomem *base;188 189 clk_data = kzalloc(struct_size(clk_data, hws, IMX7ULP_CLK_PCC3_END),190 GFP_KERNEL);191 if (!clk_data)192 return;193 194 clk_data->num = IMX7ULP_CLK_PCC3_END;195 hws = clk_data->hws;196 197 /* PCC3 */198 base = of_iomap(np, 0);199 WARN_ON(!base);200 201 hws[IMX7ULP_CLK_LPTPM6] = imx7ulp_clk_hw_composite("lptpm6", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x84);202 hws[IMX7ULP_CLK_LPTPM7] = imx7ulp_clk_hw_composite("lptpm7", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x88);203 204 hws[IMX7ULP_CLK_MMDC] = clk_hw_register_gate(NULL, "mmdc", "nic1_clk", CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,205 base + 0xac, 30, 0, &imx_ccm_lock);206 hws[IMX7ULP_CLK_LPI2C6] = imx7ulp_clk_hw_composite("lpi2c6", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x90);207 hws[IMX7ULP_CLK_LPI2C7] = imx7ulp_clk_hw_composite("lpi2c7", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x94);208 hws[IMX7ULP_CLK_LPUART6] = imx7ulp_clk_hw_composite("lpuart6", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x98);209 hws[IMX7ULP_CLK_LPUART7] = imx7ulp_clk_hw_composite("lpuart7", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, false, true, base + 0x9c);210 hws[IMX7ULP_CLK_DSI] = imx7ulp_clk_hw_composite("dsi", periph_bus_sels, ARRAY_SIZE(periph_bus_sels), true, true, true, base + 0xa4);211 hws[IMX7ULP_CLK_LCDIF] = imx7ulp_clk_hw_composite("lcdif", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, true, true, base + 0xa8);212 213 hws[IMX7ULP_CLK_VIU] = imx_clk_hw_gate("viu", "nic1_clk", base + 0xa0, 30);214 hws[IMX7ULP_CLK_PCTLC] = imx_clk_hw_gate("pctlc", "nic1_bus_clk", base + 0xb8, 30);215 hws[IMX7ULP_CLK_PCTLD] = imx_clk_hw_gate("pctld", "nic1_bus_clk", base + 0xbc, 30);216 hws[IMX7ULP_CLK_PCTLE] = imx_clk_hw_gate("pctle", "nic1_bus_clk", base + 0xc0, 30);217 hws[IMX7ULP_CLK_PCTLF] = imx_clk_hw_gate("pctlf", "nic1_bus_clk", base + 0xc4, 30);218 219 hws[IMX7ULP_CLK_GPU3D] = imx7ulp_clk_hw_composite("gpu3d", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, false, true, base + 0x140);220 hws[IMX7ULP_CLK_GPU2D] = imx7ulp_clk_hw_composite("gpu2d", periph_plat_sels, ARRAY_SIZE(periph_plat_sels), true, false, true, base + 0x144);221 222 imx_check_clk_hws(hws, clk_data->num);223 224 of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);225 226 imx_register_uart_clocks();227}228CLK_OF_DECLARE(imx7ulp_clk_pcc3, "fsl,imx7ulp-pcc3", imx7ulp_clk_pcc3_init);229 230static void __init imx7ulp_clk_smc1_init(struct device_node *np)231{232 struct clk_hw_onecell_data *clk_data;233 struct clk_hw **hws;234 void __iomem *base;235 236 clk_data = kzalloc(struct_size(clk_data, hws, IMX7ULP_CLK_SMC1_END),237 GFP_KERNEL);238 if (!clk_data)239 return;240 241 clk_data->num = IMX7ULP_CLK_SMC1_END;242 hws = clk_data->hws;243 244 /* SMC1 */245 base = of_iomap(np, 0);246 WARN_ON(!base);247 248 hws[IMX7ULP_CLK_ARM] = imx_clk_hw_mux_flags("arm", base + 0x10, 8, 2, arm_sels, ARRAY_SIZE(arm_sels), CLK_SET_RATE_PARENT);249 250 imx_check_clk_hws(hws, clk_data->num);251 252 of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);253}254CLK_OF_DECLARE(imx7ulp_clk_smc1, "fsl,imx7ulp-smc1", imx7ulp_clk_smc1_init);255