1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * RZ/G2L CPG driver 4 * 5 * Copyright (C) 2021 Renesas Electronics Corp. 6 */ 7 8 #include <linux/clk-provider.h> 9 #include <linux/device.h> 10 #include <linux/init.h> 11 #include <linux/kernel.h> 12 13 #include <dt-bindings/clock/r9a07g044-cpg.h> 14 15 #include "rzg2l-cpg.h" 16 17 enum clk_ids { 18 /* Core Clock Outputs exported to DT */ 19 LAST_DT_CORE_CLK = R9A07G044_CLK_P0_DIV2, 20 21 /* External Input Clocks */ 22 CLK_EXTAL, 23 24 /* Internal Core Clocks */ 25 CLK_OSC_DIV1000, 26 CLK_PLL1, 27 CLK_PLL2, 28 CLK_PLL2_DIV2, 29 CLK_PLL2_DIV16, 30 CLK_PLL2_DIV20, 31 CLK_PLL3, 32 CLK_PLL3_DIV2, 33 CLK_PLL3_DIV2_4, 34 CLK_PLL3_DIV2_4_2, 35 CLK_PLL3_DIV4, 36 CLK_PLL4, 37 CLK_PLL5, 38 CLK_PLL5_DIV2, 39 CLK_PLL6, 40 CLK_P1_DIV2, 41 42 /* Module Clocks */ 43 MOD_CLK_BASE, 44 }; 45 46 /* Divider tables */ 47 static const struct clk_div_table dtable_1_32[] = { 48 {0, 1}, 49 {1, 2}, 50 {2, 4}, 51 {3, 8}, 52 {4, 32}, 53 {0, 0}, 54 }; 55 56 static const struct cpg_core_clk r9a07g044_core_clks[] __initconst = { 57 /* External Clock Inputs */ 58 DEF_INPUT("extal", CLK_EXTAL), 59 60 /* Internal Core Clocks */ 61 DEF_FIXED(".osc", R9A07G044_OSCCLK, CLK_EXTAL, 1, 1), 62 DEF_FIXED(".osc_div1000", CLK_OSC_DIV1000, CLK_EXTAL, 1, 1000), 63 DEF_SAMPLL(".pll1", CLK_PLL1, CLK_EXTAL, PLL146_CONF(0)), 64 DEF_FIXED(".pll2", CLK_PLL2, CLK_EXTAL, 133, 2), 65 DEF_FIXED(".pll3", CLK_PLL3, CLK_EXTAL, 133, 2), 66 67 DEF_FIXED(".pll2_div2", CLK_PLL2_DIV2, CLK_PLL2, 1, 2), 68 DEF_FIXED(".pll2_div16", CLK_PLL2_DIV16, CLK_PLL2, 1, 16), 69 DEF_FIXED(".pll2_div20", CLK_PLL2_DIV20, CLK_PLL2, 1, 20), 70 71 DEF_FIXED(".pll3_div2", CLK_PLL3_DIV2, CLK_PLL3, 1, 2), 72 DEF_FIXED(".pll3_div2_4", CLK_PLL3_DIV2_4, CLK_PLL3_DIV2, 1, 4), 73 DEF_FIXED(".pll3_div2_4_2", CLK_PLL3_DIV2_4_2, CLK_PLL3_DIV2_4, 1, 2), 74 DEF_FIXED(".pll3_div4", CLK_PLL3_DIV4, CLK_PLL3, 1, 4), 75 76 /* Core output clk */ 77 DEF_FIXED("I", R9A07G044_CLK_I, CLK_PLL1, 1, 1), 78 DEF_DIV("P0", R9A07G044_CLK_P0, CLK_PLL2_DIV16, DIVPL2A, 79 dtable_1_32, CLK_DIVIDER_HIWORD_MASK), 80 DEF_FIXED("P0_DIV2", R9A07G044_CLK_P0_DIV2, R9A07G044_CLK_P0, 1, 2), 81 DEF_FIXED("TSU", R9A07G044_CLK_TSU, CLK_PLL2_DIV20, 1, 1), 82 DEF_DIV("P1", R9A07G044_CLK_P1, CLK_PLL3_DIV2_4, 83 DIVPL3B, dtable_1_32, CLK_DIVIDER_HIWORD_MASK), 84 DEF_FIXED("P1_DIV2", CLK_P1_DIV2, R9A07G044_CLK_P1, 1, 2), 85 DEF_DIV("P2", R9A07G044_CLK_P2, CLK_PLL3_DIV2_4_2, 86 DIVPL3A, dtable_1_32, CLK_DIVIDER_HIWORD_MASK), 87 }; 88 89 static struct rzg2l_mod_clk r9a07g044_mod_clks[] = { 90 DEF_MOD("gic", R9A07G044_GIC600_GICCLK, R9A07G044_CLK_P1, 91 0x514, 0), 92 DEF_MOD("ia55_pclk", R9A07G044_IA55_PCLK, R9A07G044_CLK_P2, 93 0x518, 0), 94 DEF_MOD("ia55_clk", R9A07G044_IA55_CLK, R9A07G044_CLK_P1, 95 0x518, 1), 96 DEF_MOD("dmac_aclk", R9A07G044_DMAC_ACLK, R9A07G044_CLK_P1, 97 0x52c, 0), 98 DEF_MOD("dmac_pclk", R9A07G044_DMAC_PCLK, CLK_P1_DIV2, 99 0x52c, 1), 100 DEF_MOD("ssi0_pclk", R9A07G044_SSI0_PCLK2, R9A07G044_CLK_P0, 101 0x570, 0), 102 DEF_MOD("ssi0_sfr", R9A07G044_SSI0_PCLK_SFR, R9A07G044_CLK_P0, 103 0x570, 1), 104 DEF_MOD("ssi1_pclk", R9A07G044_SSI1_PCLK2, R9A07G044_CLK_P0, 105 0x570, 2), 106 DEF_MOD("ssi1_sfr", R9A07G044_SSI1_PCLK_SFR, R9A07G044_CLK_P0, 107 0x570, 3), 108 DEF_MOD("ssi2_pclk", R9A07G044_SSI2_PCLK2, R9A07G044_CLK_P0, 109 0x570, 4), 110 DEF_MOD("ssi2_sfr", R9A07G044_SSI2_PCLK_SFR, R9A07G044_CLK_P0, 111 0x570, 5), 112 DEF_MOD("ssi3_pclk", R9A07G044_SSI3_PCLK2, R9A07G044_CLK_P0, 113 0x570, 6), 114 DEF_MOD("ssi3_sfr", R9A07G044_SSI3_PCLK_SFR, R9A07G044_CLK_P0, 115 0x570, 7), 116 DEF_MOD("usb0_host", R9A07G044_USB_U2H0_HCLK, R9A07G044_CLK_P1, 117 0x578, 0), 118 DEF_MOD("usb1_host", R9A07G044_USB_U2H1_HCLK, R9A07G044_CLK_P1, 119 0x578, 1), 120 DEF_MOD("usb0_func", R9A07G044_USB_U2P_EXR_CPUCLK, R9A07G044_CLK_P1, 121 0x578, 2), 122 DEF_MOD("usb_pclk", R9A07G044_USB_PCLK, R9A07G044_CLK_P1, 123 0x578, 3), 124 DEF_MOD("i2c0", R9A07G044_I2C0_PCLK, R9A07G044_CLK_P0, 125 0x580, 0), 126 DEF_MOD("i2c1", R9A07G044_I2C1_PCLK, R9A07G044_CLK_P0, 127 0x580, 1), 128 DEF_MOD("i2c2", R9A07G044_I2C2_PCLK, R9A07G044_CLK_P0, 129 0x580, 2), 130 DEF_MOD("i2c3", R9A07G044_I2C3_PCLK, R9A07G044_CLK_P0, 131 0x580, 3), 132 DEF_MOD("scif0", R9A07G044_SCIF0_CLK_PCK, R9A07G044_CLK_P0, 133 0x584, 0), 134 DEF_MOD("scif1", R9A07G044_SCIF1_CLK_PCK, R9A07G044_CLK_P0, 135 0x584, 1), 136 DEF_MOD("scif2", R9A07G044_SCIF2_CLK_PCK, R9A07G044_CLK_P0, 137 0x584, 2), 138 DEF_MOD("scif3", R9A07G044_SCIF3_CLK_PCK, R9A07G044_CLK_P0, 139 0x584, 3), 140 DEF_MOD("scif4", R9A07G044_SCIF4_CLK_PCK, R9A07G044_CLK_P0, 141 0x584, 4), 142 DEF_MOD("sci0", R9A07G044_SCI0_CLKP, R9A07G044_CLK_P0, 143 0x588, 0), 144 DEF_MOD("canfd", R9A07G044_CANFD_PCLK, R9A07G044_CLK_P0, 145 0x594, 0), 146 DEF_MOD("gpio", R9A07G044_GPIO_HCLK, R9A07G044_OSCCLK, 147 0x598, 0), 148 DEF_MOD("adc_adclk", R9A07G044_ADC_ADCLK, R9A07G044_CLK_TSU, 149 0x5a8, 0), 150 DEF_MOD("adc_pclk", R9A07G044_ADC_PCLK, R9A07G044_CLK_P0, 151 0x5a8, 1), 152 }; 153 154 static struct rzg2l_reset r9a07g044_resets[] = { 155 DEF_RST(R9A07G044_GIC600_GICRESET_N, 0x814, 0), 156 DEF_RST(R9A07G044_GIC600_DBG_GICRESET_N, 0x814, 1), 157 DEF_RST(R9A07G044_IA55_RESETN, 0x818, 0), 158 DEF_RST(R9A07G044_DMAC_ARESETN, 0x82c, 0), 159 DEF_RST(R9A07G044_DMAC_RST_ASYNC, 0x82c, 1), 160 DEF_RST(R9A07G044_SSI0_RST_M2_REG, 0x870, 0), 161 DEF_RST(R9A07G044_SSI1_RST_M2_REG, 0x870, 1), 162 DEF_RST(R9A07G044_SSI2_RST_M2_REG, 0x870, 2), 163 DEF_RST(R9A07G044_SSI3_RST_M2_REG, 0x870, 3), 164 DEF_RST(R9A07G044_USB_U2H0_HRESETN, 0x878, 0), 165 DEF_RST(R9A07G044_USB_U2H1_HRESETN, 0x878, 1), 166 DEF_RST(R9A07G044_USB_U2P_EXL_SYSRST, 0x878, 2), 167 DEF_RST(R9A07G044_USB_PRESETN, 0x878, 3), 168 DEF_RST(R9A07G044_I2C0_MRST, 0x880, 0), 169 DEF_RST(R9A07G044_I2C1_MRST, 0x880, 1), 170 DEF_RST(R9A07G044_I2C2_MRST, 0x880, 2), 171 DEF_RST(R9A07G044_I2C3_MRST, 0x880, 3), 172 DEF_RST(R9A07G044_SCIF0_RST_SYSTEM_N, 0x884, 0), 173 DEF_RST(R9A07G044_SCIF1_RST_SYSTEM_N, 0x884, 1), 174 DEF_RST(R9A07G044_SCIF2_RST_SYSTEM_N, 0x884, 2), 175 DEF_RST(R9A07G044_SCIF3_RST_SYSTEM_N, 0x884, 3), 176 DEF_RST(R9A07G044_SCIF4_RST_SYSTEM_N, 0x884, 4), 177 DEF_RST(R9A07G044_SCI0_RST, 0x888, 0), 178 DEF_RST(R9A07G044_CANFD_RSTP_N, 0x894, 0), 179 DEF_RST(R9A07G044_CANFD_RSTC_N, 0x894, 1), 180 DEF_RST(R9A07G044_GPIO_RSTN, 0x898, 0), 181 DEF_RST(R9A07G044_GPIO_PORT_RESETN, 0x898, 1), 182 DEF_RST(R9A07G044_GPIO_SPARE_RESETN, 0x898, 2), 183 DEF_RST(R9A07G044_ADC_PRESETN, 0x8a8, 0), 184 DEF_RST(R9A07G044_ADC_ADRST_N, 0x8a8, 1), 185 }; 186 187 static const unsigned int r9a07g044_crit_mod_clks[] __initconst = { 188 MOD_CLK_BASE + R9A07G044_GIC600_GICCLK, 189 }; 190 191 const struct rzg2l_cpg_info r9a07g044_cpg_info = { 192 /* Core Clocks */ 193 .core_clks = r9a07g044_core_clks, 194 .num_core_clks = ARRAY_SIZE(r9a07g044_core_clks), 195 .last_dt_core_clk = LAST_DT_CORE_CLK, 196 .num_total_core_clks = MOD_CLK_BASE, 197 198 /* Critical Module Clocks */ 199 .crit_mod_clks = r9a07g044_crit_mod_clks, 200 .num_crit_mod_clks = ARRAY_SIZE(r9a07g044_crit_mod_clks), 201 202 /* Module Clocks */ 203 .mod_clks = r9a07g044_mod_clks, 204 .num_mod_clks = ARRAY_SIZE(r9a07g044_mod_clks), 205 .num_hw_mod_clks = R9A07G044_TSU_PCLK + 1, 206 207 /* Resets */ 208 .resets = r9a07g044_resets, 209 .num_resets = ARRAY_SIZE(r9a07g044_resets), 210 }; 211