1 /* 2 * Copyright 2013-2014 Freescale Semiconductor, Inc. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 * 8 */ 9 10 #include <linux/clk.h> 11 #include <linux/clkdev.h> 12 #include <linux/err.h> 13 #include <linux/of.h> 14 #include <linux/of_address.h> 15 #include <linux/of_irq.h> 16 #include <dt-bindings/clock/imx6sl-clock.h> 17 18 #include "clk.h" 19 20 #define CCSR 0xc 21 #define BM_CCSR_PLL1_SW_CLK_SEL (1 << 2) 22 #define CACRR 0x10 23 #define CDHIPR 0x48 24 #define BM_CDHIPR_ARM_PODF_BUSY (1 << 16) 25 #define ARM_WAIT_DIV_396M 2 26 #define ARM_WAIT_DIV_792M 4 27 #define ARM_WAIT_DIV_996M 6 28 29 #define PLL_ARM 0x0 30 #define BM_PLL_ARM_DIV_SELECT (0x7f << 0) 31 #define BM_PLL_ARM_POWERDOWN (1 << 12) 32 #define BM_PLL_ARM_ENABLE (1 << 13) 33 #define BM_PLL_ARM_LOCK (1 << 31) 34 #define PLL_ARM_DIV_792M 66 35 36 static const char *step_sels[] = { "osc", "pll2_pfd2", }; 37 static const char *pll1_sw_sels[] = { "pll1_sys", "step", }; 38 static const char *ocram_alt_sels[] = { "pll2_pfd2", "pll3_pfd1", }; 39 static const char *ocram_sels[] = { "periph", "ocram_alt_sels", }; 40 static const char *pre_periph_sels[] = { "pll2_bus", "pll2_pfd2", "pll2_pfd0", "pll2_198m", }; 41 static const char *periph_clk2_sels[] = { "pll3_usb_otg", "osc", "osc", "dummy", }; 42 static const char *periph2_clk2_sels[] = { "pll3_usb_otg", "pll2_bus", }; 43 static const char *periph_sels[] = { "pre_periph_sel", "periph_clk2_podf", }; 44 static const char *periph2_sels[] = { "pre_periph2_sel", "periph2_clk2_podf", }; 45 static const char *csi_sels[] = { "osc", "pll2_pfd2", "pll3_120m", "pll3_pfd1", }; 46 static const char *lcdif_axi_sels[] = { "pll2_bus", "pll2_pfd2", "pll3_usb_otg", "pll3_pfd1", }; 47 static const char *usdhc_sels[] = { "pll2_pfd2", "pll2_pfd0", }; 48 static const char *ssi_sels[] = { "pll3_pfd2", "pll3_pfd3", "pll4_audio_div", "dummy", }; 49 static const char *perclk_sels[] = { "ipg", "osc", }; 50 static const char *pxp_axi_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd2", "pll3_pfd3", }; 51 static const char *epdc_axi_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd2", "pll3_pfd2", }; 52 static const char *gpu2d_ovg_sels[] = { "pll3_pfd1", "pll3_usb_otg", "pll2_bus", "pll2_pfd2", }; 53 static const char *gpu2d_sels[] = { "pll2_pfd2", "pll3_usb_otg", "pll3_pfd1", "pll2_bus", }; 54 static const char *lcdif_pix_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll3_pfd0", "pll3_pfd1", }; 55 static const char *epdc_pix_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0", "pll2_pfd1", "pll3_pfd1", }; 56 static const char *audio_sels[] = { "pll4_audio_div", "pll3_pfd2", "pll3_pfd3", "pll3_usb_otg", }; 57 static const char *ecspi_sels[] = { "pll3_60m", "osc", }; 58 static const char *uart_sels[] = { "pll3_80m", "osc", }; 59 static const char *lvds_sels[] = { 60 "pll1_sys", "pll2_bus", "pll2_pfd0", "pll2_pfd1", "pll2_pfd2", "dummy", "pll4_audio", "pll5_video", 61 "dummy", "enet_ref", "dummy", "dummy", "pll3_usb_otg", "pll7_usb_host", "pll3_pfd0", "pll3_pfd1", 62 "pll3_pfd2", "pll3_pfd3", "osc", "dummy", "dummy", "dummy", "dummy", "dummy", 63 "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", "dummy", 64 }; 65 static const char *pll_bypass_src_sels[] = { "osc", "lvds1_in", }; 66 static const char *pll1_bypass_sels[] = { "pll1", "pll1_bypass_src", }; 67 static const char *pll2_bypass_sels[] = { "pll2", "pll2_bypass_src", }; 68 static const char *pll3_bypass_sels[] = { "pll3", "pll3_bypass_src", }; 69 static const char *pll4_bypass_sels[] = { "pll4", "pll4_bypass_src", }; 70 static const char *pll5_bypass_sels[] = { "pll5", "pll5_bypass_src", }; 71 static const char *pll6_bypass_sels[] = { "pll6", "pll6_bypass_src", }; 72 static const char *pll7_bypass_sels[] = { "pll7", "pll7_bypass_src", }; 73 74 static struct clk_div_table clk_enet_ref_table[] = { 75 { .val = 0, .div = 20, }, 76 { .val = 1, .div = 10, }, 77 { .val = 2, .div = 5, }, 78 { .val = 3, .div = 4, }, 79 { } 80 }; 81 82 static struct clk_div_table post_div_table[] = { 83 { .val = 2, .div = 1, }, 84 { .val = 1, .div = 2, }, 85 { .val = 0, .div = 4, }, 86 { } 87 }; 88 89 static struct clk_div_table video_div_table[] = { 90 { .val = 0, .div = 1, }, 91 { .val = 1, .div = 2, }, 92 { .val = 2, .div = 1, }, 93 { .val = 3, .div = 4, }, 94 { } 95 }; 96 97 static unsigned int share_count_ssi1; 98 static unsigned int share_count_ssi2; 99 static unsigned int share_count_ssi3; 100 101 static struct clk *clks[IMX6SL_CLK_END]; 102 static struct clk_onecell_data clk_data; 103 static void __iomem *ccm_base; 104 static void __iomem *anatop_base; 105 106 static const u32 clks_init_on[] __initconst = { 107 IMX6SL_CLK_IPG, IMX6SL_CLK_ARM, IMX6SL_CLK_MMDC_ROOT, 108 }; 109 110 /* 111 * ERR005311 CCM: After exit from WAIT mode, unwanted interrupt(s) taken 112 * during WAIT mode entry process could cause cache memory 113 * corruption. 114 * 115 * Software workaround: 116 * To prevent this issue from occurring, software should ensure that the 117 * ARM to IPG clock ratio is less than 12:5 (that is < 2.4x), before 118 * entering WAIT mode. 119 * 120 * This function will set the ARM clk to max value within the 12:5 limit. 121 * As IPG clock is fixed at 66MHz(so ARM freq must not exceed 158.4MHz), 122 * ARM freq are one of below setpoints: 396MHz, 792MHz and 996MHz, since 123 * the clk APIs can NOT be called in idle thread(may cause kernel schedule 124 * as there is sleep function in PLL wait function), so here we just slow 125 * down ARM to below freq according to previous freq: 126 * 127 * run mode wait mode 128 * 396MHz -> 132MHz; 129 * 792MHz -> 158.4MHz; 130 * 996MHz -> 142.3MHz; 131 */ 132 static int imx6sl_get_arm_divider_for_wait(void) 133 { 134 if (readl_relaxed(ccm_base + CCSR) & BM_CCSR_PLL1_SW_CLK_SEL) { 135 return ARM_WAIT_DIV_396M; 136 } else { 137 if ((readl_relaxed(anatop_base + PLL_ARM) & 138 BM_PLL_ARM_DIV_SELECT) == PLL_ARM_DIV_792M) 139 return ARM_WAIT_DIV_792M; 140 else 141 return ARM_WAIT_DIV_996M; 142 } 143 } 144 145 static void imx6sl_enable_pll_arm(bool enable) 146 { 147 static u32 saved_pll_arm; 148 u32 val; 149 150 if (enable) { 151 saved_pll_arm = val = readl_relaxed(anatop_base + PLL_ARM); 152 val |= BM_PLL_ARM_ENABLE; 153 val &= ~BM_PLL_ARM_POWERDOWN; 154 writel_relaxed(val, anatop_base + PLL_ARM); 155 while (!(__raw_readl(anatop_base + PLL_ARM) & BM_PLL_ARM_LOCK)) 156 ; 157 } else { 158 writel_relaxed(saved_pll_arm, anatop_base + PLL_ARM); 159 } 160 } 161 162 void imx6sl_set_wait_clk(bool enter) 163 { 164 static unsigned long saved_arm_div; 165 int arm_div_for_wait = imx6sl_get_arm_divider_for_wait(); 166 167 /* 168 * According to hardware design, arm podf change need 169 * PLL1 clock enabled. 170 */ 171 if (arm_div_for_wait == ARM_WAIT_DIV_396M) 172 imx6sl_enable_pll_arm(true); 173 174 if (enter) { 175 saved_arm_div = readl_relaxed(ccm_base + CACRR); 176 writel_relaxed(arm_div_for_wait, ccm_base + CACRR); 177 } else { 178 writel_relaxed(saved_arm_div, ccm_base + CACRR); 179 } 180 while (__raw_readl(ccm_base + CDHIPR) & BM_CDHIPR_ARM_PODF_BUSY) 181 ; 182 183 if (arm_div_for_wait == ARM_WAIT_DIV_396M) 184 imx6sl_enable_pll_arm(false); 185 } 186 187 static void __init imx6sl_clocks_init(struct device_node *ccm_node) 188 { 189 struct device_node *np; 190 void __iomem *base; 191 int i; 192 int ret; 193 194 clks[IMX6SL_CLK_DUMMY] = imx_clk_fixed("dummy", 0); 195 clks[IMX6SL_CLK_CKIL] = imx_obtain_fixed_clock("ckil", 0); 196 clks[IMX6SL_CLK_OSC] = imx_obtain_fixed_clock("osc", 0); 197 /* Clock source from external clock via CLK1 PAD */ 198 clks[IMX6SL_CLK_ANACLK1] = imx_obtain_fixed_clock("anaclk1", 0); 199 200 np = of_find_compatible_node(NULL, NULL, "fsl,imx6sl-anatop"); 201 base = of_iomap(np, 0); 202 WARN_ON(!base); 203 anatop_base = base; 204 205 clks[IMX6SL_PLL1_BYPASS_SRC] = imx_clk_mux("pll1_bypass_src", base + 0x00, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); 206 clks[IMX6SL_PLL2_BYPASS_SRC] = imx_clk_mux("pll2_bypass_src", base + 0x30, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); 207 clks[IMX6SL_PLL3_BYPASS_SRC] = imx_clk_mux("pll3_bypass_src", base + 0x10, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); 208 clks[IMX6SL_PLL4_BYPASS_SRC] = imx_clk_mux("pll4_bypass_src", base + 0x70, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); 209 clks[IMX6SL_PLL5_BYPASS_SRC] = imx_clk_mux("pll5_bypass_src", base + 0xa0, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); 210 clks[IMX6SL_PLL6_BYPASS_SRC] = imx_clk_mux("pll6_bypass_src", base + 0xe0, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); 211 clks[IMX6SL_PLL7_BYPASS_SRC] = imx_clk_mux("pll7_bypass_src", base + 0x20, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); 212 213 /* type name parent_name base div_mask */ 214 clks[IMX6SL_CLK_PLL1] = imx_clk_pllv3(IMX_PLLV3_SYS, "pll1", "pll1_bypass_src", base + 0x00, 0x7f); 215 clks[IMX6SL_CLK_PLL2] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2", "pll2_bypass_src", base + 0x30, 0x1); 216 clks[IMX6SL_CLK_PLL3] = imx_clk_pllv3(IMX_PLLV3_USB, "pll3", "pll3_bypass_src", base + 0x10, 0x3); 217 clks[IMX6SL_CLK_PLL4] = imx_clk_pllv3(IMX_PLLV3_AV, "pll4", "pll4_bypass_src", base + 0x70, 0x7f); 218 clks[IMX6SL_CLK_PLL5] = imx_clk_pllv3(IMX_PLLV3_AV, "pll5", "pll5_bypass_src", base + 0xa0, 0x7f); 219 clks[IMX6SL_CLK_PLL6] = imx_clk_pllv3(IMX_PLLV3_ENET, "pll6", "pll6_bypass_src", base + 0xe0, 0x3); 220 clks[IMX6SL_CLK_PLL7] = imx_clk_pllv3(IMX_PLLV3_USB, "pll7", "pll7_bypass_src", base + 0x20, 0x3); 221 222 clks[IMX6SL_PLL1_BYPASS] = imx_clk_mux_flags("pll1_bypass", base + 0x00, 16, 1, pll1_bypass_sels, ARRAY_SIZE(pll1_bypass_sels), CLK_SET_RATE_PARENT); 223 clks[IMX6SL_PLL2_BYPASS] = imx_clk_mux_flags("pll2_bypass", base + 0x30, 16, 1, pll2_bypass_sels, ARRAY_SIZE(pll2_bypass_sels), CLK_SET_RATE_PARENT); 224 clks[IMX6SL_PLL3_BYPASS] = imx_clk_mux_flags("pll3_bypass", base + 0x10, 16, 1, pll3_bypass_sels, ARRAY_SIZE(pll3_bypass_sels), CLK_SET_RATE_PARENT); 225 clks[IMX6SL_PLL4_BYPASS] = imx_clk_mux_flags("pll4_bypass", base + 0x70, 16, 1, pll4_bypass_sels, ARRAY_SIZE(pll4_bypass_sels), CLK_SET_RATE_PARENT); 226 clks[IMX6SL_PLL5_BYPASS] = imx_clk_mux_flags("pll5_bypass", base + 0xa0, 16, 1, pll5_bypass_sels, ARRAY_SIZE(pll5_bypass_sels), CLK_SET_RATE_PARENT); 227 clks[IMX6SL_PLL6_BYPASS] = imx_clk_mux_flags("pll6_bypass", base + 0xe0, 16, 1, pll6_bypass_sels, ARRAY_SIZE(pll6_bypass_sels), CLK_SET_RATE_PARENT); 228 clks[IMX6SL_PLL7_BYPASS] = imx_clk_mux_flags("pll7_bypass", base + 0x20, 16, 1, pll7_bypass_sels, ARRAY_SIZE(pll7_bypass_sels), CLK_SET_RATE_PARENT); 229 230 /* Do not bypass PLLs initially */ 231 clk_set_parent(clks[IMX6SL_PLL1_BYPASS], clks[IMX6SL_CLK_PLL1]); 232 clk_set_parent(clks[IMX6SL_PLL2_BYPASS], clks[IMX6SL_CLK_PLL2]); 233 clk_set_parent(clks[IMX6SL_PLL3_BYPASS], clks[IMX6SL_CLK_PLL3]); 234 clk_set_parent(clks[IMX6SL_PLL4_BYPASS], clks[IMX6SL_CLK_PLL4]); 235 clk_set_parent(clks[IMX6SL_PLL5_BYPASS], clks[IMX6SL_CLK_PLL5]); 236 clk_set_parent(clks[IMX6SL_PLL6_BYPASS], clks[IMX6SL_CLK_PLL6]); 237 clk_set_parent(clks[IMX6SL_PLL7_BYPASS], clks[IMX6SL_CLK_PLL7]); 238 239 clks[IMX6SL_CLK_PLL1_SYS] = imx_clk_gate("pll1_sys", "pll1_bypass", base + 0x00, 13); 240 clks[IMX6SL_CLK_PLL2_BUS] = imx_clk_gate("pll2_bus", "pll2_bypass", base + 0x30, 13); 241 clks[IMX6SL_CLK_PLL3_USB_OTG] = imx_clk_gate("pll3_usb_otg", "pll3_bypass", base + 0x10, 13); 242 clks[IMX6SL_CLK_PLL4_AUDIO] = imx_clk_gate("pll4_audio", "pll4_bypass", base + 0x70, 13); 243 clks[IMX6SL_CLK_PLL5_VIDEO] = imx_clk_gate("pll5_video", "pll5_bypass", base + 0xa0, 13); 244 clks[IMX6SL_CLK_PLL6_ENET] = imx_clk_gate("pll6_enet", "pll6_bypass", base + 0xe0, 13); 245 clks[IMX6SL_CLK_PLL7_USB_HOST] = imx_clk_gate("pll7_usb_host", "pll7_bypass", base + 0x20, 13); 246 247 clks[IMX6SL_CLK_LVDS1_SEL] = imx_clk_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels)); 248 clks[IMX6SL_CLK_LVDS1_OUT] = imx_clk_gate_exclusive("lvds1_out", "lvds1_sel", base + 0x160, 10, BIT(12)); 249 clks[IMX6SL_CLK_LVDS1_IN] = imx_clk_gate_exclusive("lvds1_in", "anaclk1", base + 0x160, 12, BIT(10)); 250 251 /* 252 * usbphy1 and usbphy2 are implemented as dummy gates using reserve 253 * bit 20. They are used by phy driver to keep the refcount of 254 * parent PLL correct. usbphy1_gate and usbphy2_gate only needs to be 255 * turned on during boot, and software will not need to control it 256 * anymore after that. 257 */ 258 clks[IMX6SL_CLK_USBPHY1] = imx_clk_gate("usbphy1", "pll3_usb_otg", base + 0x10, 20); 259 clks[IMX6SL_CLK_USBPHY2] = imx_clk_gate("usbphy2", "pll7_usb_host", base + 0x20, 20); 260 clks[IMX6SL_CLK_USBPHY1_GATE] = imx_clk_gate("usbphy1_gate", "dummy", base + 0x10, 6); 261 clks[IMX6SL_CLK_USBPHY2_GATE] = imx_clk_gate("usbphy2_gate", "dummy", base + 0x20, 6); 262 263 /* dev name parent_name flags reg shift width div: flags, div_table lock */ 264 clks[IMX6SL_CLK_PLL4_POST_DIV] = clk_register_divider_table(NULL, "pll4_post_div", "pll4_audio", CLK_SET_RATE_PARENT, base + 0x70, 19, 2, 0, post_div_table, &imx_ccm_lock); 265 clks[IMX6SL_CLK_PLL4_AUDIO_DIV] = clk_register_divider(NULL, "pll4_audio_div", "pll4_post_div", CLK_SET_RATE_PARENT, base + 0x170, 15, 1, 0, &imx_ccm_lock); 266 clks[IMX6SL_CLK_PLL5_POST_DIV] = clk_register_divider_table(NULL, "pll5_post_div", "pll5_video", CLK_SET_RATE_PARENT, base + 0xa0, 19, 2, 0, post_div_table, &imx_ccm_lock); 267 clks[IMX6SL_CLK_PLL5_VIDEO_DIV] = clk_register_divider_table(NULL, "pll5_video_div", "pll5_post_div", CLK_SET_RATE_PARENT, base + 0x170, 30, 2, 0, video_div_table, &imx_ccm_lock); 268 clks[IMX6SL_CLK_ENET_REF] = clk_register_divider_table(NULL, "enet_ref", "pll6_enet", 0, base + 0xe0, 0, 2, 0, clk_enet_ref_table, &imx_ccm_lock); 269 270 /* name parent_name reg idx */ 271 clks[IMX6SL_CLK_PLL2_PFD0] = imx_clk_pfd("pll2_pfd0", "pll2_bus", base + 0x100, 0); 272 clks[IMX6SL_CLK_PLL2_PFD1] = imx_clk_pfd("pll2_pfd1", "pll2_bus", base + 0x100, 1); 273 clks[IMX6SL_CLK_PLL2_PFD2] = imx_clk_pfd("pll2_pfd2", "pll2_bus", base + 0x100, 2); 274 clks[IMX6SL_CLK_PLL3_PFD0] = imx_clk_pfd("pll3_pfd0", "pll3_usb_otg", base + 0xf0, 0); 275 clks[IMX6SL_CLK_PLL3_PFD1] = imx_clk_pfd("pll3_pfd1", "pll3_usb_otg", base + 0xf0, 1); 276 clks[IMX6SL_CLK_PLL3_PFD2] = imx_clk_pfd("pll3_pfd2", "pll3_usb_otg", base + 0xf0, 2); 277 clks[IMX6SL_CLK_PLL3_PFD3] = imx_clk_pfd("pll3_pfd3", "pll3_usb_otg", base + 0xf0, 3); 278 279 /* name parent_name mult div */ 280 clks[IMX6SL_CLK_PLL2_198M] = imx_clk_fixed_factor("pll2_198m", "pll2_pfd2", 1, 2); 281 clks[IMX6SL_CLK_PLL3_120M] = imx_clk_fixed_factor("pll3_120m", "pll3_usb_otg", 1, 4); 282 clks[IMX6SL_CLK_PLL3_80M] = imx_clk_fixed_factor("pll3_80m", "pll3_usb_otg", 1, 6); 283 clks[IMX6SL_CLK_PLL3_60M] = imx_clk_fixed_factor("pll3_60m", "pll3_usb_otg", 1, 8); 284 285 np = ccm_node; 286 base = of_iomap(np, 0); 287 WARN_ON(!base); 288 ccm_base = base; 289 290 /* name reg shift width parent_names num_parents */ 291 clks[IMX6SL_CLK_STEP] = imx_clk_mux("step", base + 0xc, 8, 1, step_sels, ARRAY_SIZE(step_sels)); 292 clks[IMX6SL_CLK_PLL1_SW] = imx_clk_mux("pll1_sw", base + 0xc, 2, 1, pll1_sw_sels, ARRAY_SIZE(pll1_sw_sels)); 293 clks[IMX6SL_CLK_OCRAM_ALT_SEL] = imx_clk_mux("ocram_alt_sel", base + 0x14, 7, 1, ocram_alt_sels, ARRAY_SIZE(ocram_alt_sels)); 294 clks[IMX6SL_CLK_OCRAM_SEL] = imx_clk_mux("ocram_sel", base + 0x14, 6, 1, ocram_sels, ARRAY_SIZE(ocram_sels)); 295 clks[IMX6SL_CLK_PRE_PERIPH2_SEL] = imx_clk_mux("pre_periph2_sel", base + 0x18, 21, 2, pre_periph_sels, ARRAY_SIZE(pre_periph_sels)); 296 clks[IMX6SL_CLK_PRE_PERIPH_SEL] = imx_clk_mux("pre_periph_sel", base + 0x18, 18, 2, pre_periph_sels, ARRAY_SIZE(pre_periph_sels)); 297 clks[IMX6SL_CLK_PERIPH2_CLK2_SEL] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels)); 298 clks[IMX6SL_CLK_PERIPH_CLK2_SEL] = imx_clk_mux("periph_clk2_sel", base + 0x18, 12, 2, periph_clk2_sels, ARRAY_SIZE(periph_clk2_sels)); 299 clks[IMX6SL_CLK_CSI_SEL] = imx_clk_mux("csi_sel", base + 0x3c, 9, 2, csi_sels, ARRAY_SIZE(csi_sels)); 300 clks[IMX6SL_CLK_LCDIF_AXI_SEL] = imx_clk_mux("lcdif_axi_sel", base + 0x3c, 14, 2, lcdif_axi_sels, ARRAY_SIZE(lcdif_axi_sels)); 301 clks[IMX6SL_CLK_USDHC1_SEL] = imx_clk_fixup_mux("usdhc1_sel", base + 0x1c, 16, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); 302 clks[IMX6SL_CLK_USDHC2_SEL] = imx_clk_fixup_mux("usdhc2_sel", base + 0x1c, 17, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); 303 clks[IMX6SL_CLK_USDHC3_SEL] = imx_clk_fixup_mux("usdhc3_sel", base + 0x1c, 18, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); 304 clks[IMX6SL_CLK_USDHC4_SEL] = imx_clk_fixup_mux("usdhc4_sel", base + 0x1c, 19, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels), imx_cscmr1_fixup); 305 clks[IMX6SL_CLK_SSI1_SEL] = imx_clk_fixup_mux("ssi1_sel", base + 0x1c, 10, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup); 306 clks[IMX6SL_CLK_SSI2_SEL] = imx_clk_fixup_mux("ssi2_sel", base + 0x1c, 12, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup); 307 clks[IMX6SL_CLK_SSI3_SEL] = imx_clk_fixup_mux("ssi3_sel", base + 0x1c, 14, 2, ssi_sels, ARRAY_SIZE(ssi_sels), imx_cscmr1_fixup); 308 clks[IMX6SL_CLK_PERCLK_SEL] = imx_clk_fixup_mux("perclk_sel", base + 0x1c, 6, 1, perclk_sels, ARRAY_SIZE(perclk_sels), imx_cscmr1_fixup); 309 clks[IMX6SL_CLK_PXP_AXI_SEL] = imx_clk_mux("pxp_axi_sel", base + 0x34, 6, 3, pxp_axi_sels, ARRAY_SIZE(pxp_axi_sels)); 310 clks[IMX6SL_CLK_EPDC_AXI_SEL] = imx_clk_mux("epdc_axi_sel", base + 0x34, 15, 3, epdc_axi_sels, ARRAY_SIZE(epdc_axi_sels)); 311 clks[IMX6SL_CLK_GPU2D_OVG_SEL] = imx_clk_mux("gpu2d_ovg_sel", base + 0x18, 4, 2, gpu2d_ovg_sels, ARRAY_SIZE(gpu2d_ovg_sels)); 312 clks[IMX6SL_CLK_GPU2D_SEL] = imx_clk_mux("gpu2d_sel", base + 0x18, 8, 2, gpu2d_sels, ARRAY_SIZE(gpu2d_sels)); 313 clks[IMX6SL_CLK_LCDIF_PIX_SEL] = imx_clk_mux("lcdif_pix_sel", base + 0x38, 6, 3, lcdif_pix_sels, ARRAY_SIZE(lcdif_pix_sels)); 314 clks[IMX6SL_CLK_EPDC_PIX_SEL] = imx_clk_mux("epdc_pix_sel", base + 0x38, 15, 3, epdc_pix_sels, ARRAY_SIZE(epdc_pix_sels)); 315 clks[IMX6SL_CLK_SPDIF0_SEL] = imx_clk_mux("spdif0_sel", base + 0x30, 20, 2, audio_sels, ARRAY_SIZE(audio_sels)); 316 clks[IMX6SL_CLK_SPDIF1_SEL] = imx_clk_mux("spdif1_sel", base + 0x30, 7, 2, audio_sels, ARRAY_SIZE(audio_sels)); 317 clks[IMX6SL_CLK_EXTERN_AUDIO_SEL] = imx_clk_mux("extern_audio_sel", base + 0x20, 19, 2, audio_sels, ARRAY_SIZE(audio_sels)); 318 clks[IMX6SL_CLK_ECSPI_SEL] = imx_clk_mux("ecspi_sel", base + 0x38, 18, 1, ecspi_sels, ARRAY_SIZE(ecspi_sels)); 319 clks[IMX6SL_CLK_UART_SEL] = imx_clk_mux("uart_sel", base + 0x24, 6, 1, uart_sels, ARRAY_SIZE(uart_sels)); 320 321 /* name reg shift width busy: reg, shift parent_names num_parents */ 322 clks[IMX6SL_CLK_PERIPH] = imx_clk_busy_mux("periph", base + 0x14, 25, 1, base + 0x48, 5, periph_sels, ARRAY_SIZE(periph_sels)); 323 clks[IMX6SL_CLK_PERIPH2] = imx_clk_busy_mux("periph2", base + 0x14, 26, 1, base + 0x48, 3, periph2_sels, ARRAY_SIZE(periph2_sels)); 324 325 /* name parent_name reg shift width */ 326 clks[IMX6SL_CLK_OCRAM_PODF] = imx_clk_divider("ocram_podf", "ocram_sel", base + 0x14, 16, 3); 327 clks[IMX6SL_CLK_PERIPH_CLK2_PODF] = imx_clk_divider("periph_clk2_podf", "periph_clk2_sel", base + 0x14, 27, 3); 328 clks[IMX6SL_CLK_PERIPH2_CLK2_PODF] = imx_clk_divider("periph2_clk2_podf", "periph2_clk2_sel", base + 0x14, 0, 3); 329 clks[IMX6SL_CLK_IPG] = imx_clk_divider("ipg", "ahb", base + 0x14, 8, 2); 330 clks[IMX6SL_CLK_CSI_PODF] = imx_clk_divider("csi_podf", "csi_sel", base + 0x3c, 11, 3); 331 clks[IMX6SL_CLK_LCDIF_AXI_PODF] = imx_clk_divider("lcdif_axi_podf", "lcdif_axi_sel", base + 0x3c, 16, 3); 332 clks[IMX6SL_CLK_USDHC1_PODF] = imx_clk_divider("usdhc1_podf", "usdhc1_sel", base + 0x24, 11, 3); 333 clks[IMX6SL_CLK_USDHC2_PODF] = imx_clk_divider("usdhc2_podf", "usdhc2_sel", base + 0x24, 16, 3); 334 clks[IMX6SL_CLK_USDHC3_PODF] = imx_clk_divider("usdhc3_podf", "usdhc3_sel", base + 0x24, 19, 3); 335 clks[IMX6SL_CLK_USDHC4_PODF] = imx_clk_divider("usdhc4_podf", "usdhc4_sel", base + 0x24, 22, 3); 336 clks[IMX6SL_CLK_SSI1_PRED] = imx_clk_divider("ssi1_pred", "ssi1_sel", base + 0x28, 6, 3); 337 clks[IMX6SL_CLK_SSI1_PODF] = imx_clk_divider("ssi1_podf", "ssi1_pred", base + 0x28, 0, 6); 338 clks[IMX6SL_CLK_SSI2_PRED] = imx_clk_divider("ssi2_pred", "ssi2_sel", base + 0x2c, 6, 3); 339 clks[IMX6SL_CLK_SSI2_PODF] = imx_clk_divider("ssi2_podf", "ssi2_pred", base + 0x2c, 0, 6); 340 clks[IMX6SL_CLK_SSI3_PRED] = imx_clk_divider("ssi3_pred", "ssi3_sel", base + 0x28, 22, 3); 341 clks[IMX6SL_CLK_SSI3_PODF] = imx_clk_divider("ssi3_podf", "ssi3_pred", base + 0x28, 16, 6); 342 clks[IMX6SL_CLK_PERCLK] = imx_clk_fixup_divider("perclk", "perclk_sel", base + 0x1c, 0, 6, imx_cscmr1_fixup); 343 clks[IMX6SL_CLK_PXP_AXI_PODF] = imx_clk_divider("pxp_axi_podf", "pxp_axi_sel", base + 0x34, 3, 3); 344 clks[IMX6SL_CLK_EPDC_AXI_PODF] = imx_clk_divider("epdc_axi_podf", "epdc_axi_sel", base + 0x34, 12, 3); 345 clks[IMX6SL_CLK_GPU2D_OVG_PODF] = imx_clk_divider("gpu2d_ovg_podf", "gpu2d_ovg_sel", base + 0x18, 26, 3); 346 clks[IMX6SL_CLK_GPU2D_PODF] = imx_clk_divider("gpu2d_podf", "gpu2d_sel", base + 0x18, 29, 3); 347 clks[IMX6SL_CLK_LCDIF_PIX_PRED] = imx_clk_divider("lcdif_pix_pred", "lcdif_pix_sel", base + 0x38, 3, 3); 348 clks[IMX6SL_CLK_EPDC_PIX_PRED] = imx_clk_divider("epdc_pix_pred", "epdc_pix_sel", base + 0x38, 12, 3); 349 clks[IMX6SL_CLK_LCDIF_PIX_PODF] = imx_clk_fixup_divider("lcdif_pix_podf", "lcdif_pix_pred", base + 0x1c, 20, 3, imx_cscmr1_fixup); 350 clks[IMX6SL_CLK_EPDC_PIX_PODF] = imx_clk_divider("epdc_pix_podf", "epdc_pix_pred", base + 0x18, 23, 3); 351 clks[IMX6SL_CLK_SPDIF0_PRED] = imx_clk_divider("spdif0_pred", "spdif0_sel", base + 0x30, 25, 3); 352 clks[IMX6SL_CLK_SPDIF0_PODF] = imx_clk_divider("spdif0_podf", "spdif0_pred", base + 0x30, 22, 3); 353 clks[IMX6SL_CLK_SPDIF1_PRED] = imx_clk_divider("spdif1_pred", "spdif1_sel", base + 0x30, 12, 3); 354 clks[IMX6SL_CLK_SPDIF1_PODF] = imx_clk_divider("spdif1_podf", "spdif1_pred", base + 0x30, 9, 3); 355 clks[IMX6SL_CLK_EXTERN_AUDIO_PRED] = imx_clk_divider("extern_audio_pred", "extern_audio_sel", base + 0x28, 9, 3); 356 clks[IMX6SL_CLK_EXTERN_AUDIO_PODF] = imx_clk_divider("extern_audio_podf", "extern_audio_pred", base + 0x28, 25, 3); 357 clks[IMX6SL_CLK_ECSPI_ROOT] = imx_clk_divider("ecspi_root", "ecspi_sel", base + 0x38, 19, 6); 358 clks[IMX6SL_CLK_UART_ROOT] = imx_clk_divider("uart_root", "uart_sel", base + 0x24, 0, 6); 359 360 /* name parent_name reg shift width busy: reg, shift */ 361 clks[IMX6SL_CLK_AHB] = imx_clk_busy_divider("ahb", "periph", base + 0x14, 10, 3, base + 0x48, 1); 362 clks[IMX6SL_CLK_MMDC_ROOT] = imx_clk_busy_divider("mmdc", "periph2", base + 0x14, 3, 3, base + 0x48, 2); 363 clks[IMX6SL_CLK_ARM] = imx_clk_busy_divider("arm", "pll1_sw", base + 0x10, 0, 3, base + 0x48, 16); 364 365 /* name parent_name reg shift */ 366 clks[IMX6SL_CLK_ECSPI1] = imx_clk_gate2("ecspi1", "ecspi_root", base + 0x6c, 0); 367 clks[IMX6SL_CLK_ECSPI2] = imx_clk_gate2("ecspi2", "ecspi_root", base + 0x6c, 2); 368 clks[IMX6SL_CLK_ECSPI3] = imx_clk_gate2("ecspi3", "ecspi_root", base + 0x6c, 4); 369 clks[IMX6SL_CLK_ECSPI4] = imx_clk_gate2("ecspi4", "ecspi_root", base + 0x6c, 6); 370 clks[IMX6SL_CLK_ENET] = imx_clk_gate2("enet", "ipg", base + 0x6c, 10); 371 clks[IMX6SL_CLK_EPIT1] = imx_clk_gate2("epit1", "perclk", base + 0x6c, 12); 372 clks[IMX6SL_CLK_EPIT2] = imx_clk_gate2("epit2", "perclk", base + 0x6c, 14); 373 clks[IMX6SL_CLK_EXTERN_AUDIO] = imx_clk_gate2("extern_audio", "extern_audio_podf", base + 0x6c, 16); 374 clks[IMX6SL_CLK_GPT] = imx_clk_gate2("gpt", "perclk", base + 0x6c, 20); 375 clks[IMX6SL_CLK_GPT_SERIAL] = imx_clk_gate2("gpt_serial", "perclk", base + 0x6c, 22); 376 clks[IMX6SL_CLK_GPU2D_OVG] = imx_clk_gate2("gpu2d_ovg", "gpu2d_ovg_podf", base + 0x6c, 26); 377 clks[IMX6SL_CLK_I2C1] = imx_clk_gate2("i2c1", "perclk", base + 0x70, 6); 378 clks[IMX6SL_CLK_I2C2] = imx_clk_gate2("i2c2", "perclk", base + 0x70, 8); 379 clks[IMX6SL_CLK_I2C3] = imx_clk_gate2("i2c3", "perclk", base + 0x70, 10); 380 clks[IMX6SL_CLK_OCOTP] = imx_clk_gate2("ocotp", "ipg", base + 0x70, 12); 381 clks[IMX6SL_CLK_CSI] = imx_clk_gate2("csi", "csi_podf", base + 0x74, 0); 382 clks[IMX6SL_CLK_PXP_AXI] = imx_clk_gate2("pxp_axi", "pxp_axi_podf", base + 0x74, 2); 383 clks[IMX6SL_CLK_EPDC_AXI] = imx_clk_gate2("epdc_axi", "epdc_axi_podf", base + 0x74, 4); 384 clks[IMX6SL_CLK_LCDIF_AXI] = imx_clk_gate2("lcdif_axi", "lcdif_axi_podf", base + 0x74, 6); 385 clks[IMX6SL_CLK_LCDIF_PIX] = imx_clk_gate2("lcdif_pix", "lcdif_pix_podf", base + 0x74, 8); 386 clks[IMX6SL_CLK_EPDC_PIX] = imx_clk_gate2("epdc_pix", "epdc_pix_podf", base + 0x74, 10); 387 clks[IMX6SL_CLK_OCRAM] = imx_clk_gate2("ocram", "ocram_podf", base + 0x74, 28); 388 clks[IMX6SL_CLK_PWM1] = imx_clk_gate2("pwm1", "perclk", base + 0x78, 16); 389 clks[IMX6SL_CLK_PWM2] = imx_clk_gate2("pwm2", "perclk", base + 0x78, 18); 390 clks[IMX6SL_CLK_PWM3] = imx_clk_gate2("pwm3", "perclk", base + 0x78, 20); 391 clks[IMX6SL_CLK_PWM4] = imx_clk_gate2("pwm4", "perclk", base + 0x78, 22); 392 clks[IMX6SL_CLK_SDMA] = imx_clk_gate2("sdma", "ipg", base + 0x7c, 6); 393 clks[IMX6SL_CLK_SPBA] = imx_clk_gate2("spba", "ipg", base + 0x7c, 12); 394 clks[IMX6SL_CLK_SPDIF] = imx_clk_gate2("spdif", "spdif0_podf", base + 0x7c, 14); 395 clks[IMX6SL_CLK_SSI1_IPG] = imx_clk_gate2_shared("ssi1_ipg", "ipg", base + 0x7c, 18, &share_count_ssi1); 396 clks[IMX6SL_CLK_SSI2_IPG] = imx_clk_gate2_shared("ssi2_ipg", "ipg", base + 0x7c, 20, &share_count_ssi2); 397 clks[IMX6SL_CLK_SSI3_IPG] = imx_clk_gate2_shared("ssi3_ipg", "ipg", base + 0x7c, 22, &share_count_ssi3); 398 clks[IMX6SL_CLK_SSI1] = imx_clk_gate2_shared("ssi1", "ssi1_podf", base + 0x7c, 18, &share_count_ssi1); 399 clks[IMX6SL_CLK_SSI2] = imx_clk_gate2_shared("ssi2", "ssi2_podf", base + 0x7c, 20, &share_count_ssi2); 400 clks[IMX6SL_CLK_SSI3] = imx_clk_gate2_shared("ssi3", "ssi3_podf", base + 0x7c, 22, &share_count_ssi3); 401 clks[IMX6SL_CLK_UART] = imx_clk_gate2("uart", "ipg", base + 0x7c, 24); 402 clks[IMX6SL_CLK_UART_SERIAL] = imx_clk_gate2("uart_serial", "uart_root", base + 0x7c, 26); 403 clks[IMX6SL_CLK_USBOH3] = imx_clk_gate2("usboh3", "ipg", base + 0x80, 0); 404 clks[IMX6SL_CLK_USDHC1] = imx_clk_gate2("usdhc1", "usdhc1_podf", base + 0x80, 2); 405 clks[IMX6SL_CLK_USDHC2] = imx_clk_gate2("usdhc2", "usdhc2_podf", base + 0x80, 4); 406 clks[IMX6SL_CLK_USDHC3] = imx_clk_gate2("usdhc3", "usdhc3_podf", base + 0x80, 6); 407 clks[IMX6SL_CLK_USDHC4] = imx_clk_gate2("usdhc4", "usdhc4_podf", base + 0x80, 8); 408 409 imx_check_clocks(clks, ARRAY_SIZE(clks)); 410 411 clk_data.clks = clks; 412 clk_data.clk_num = ARRAY_SIZE(clks); 413 of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); 414 415 /* Ensure the AHB clk is at 132MHz. */ 416 ret = clk_set_rate(clks[IMX6SL_CLK_AHB], 132000000); 417 if (ret) 418 pr_warn("%s: failed to set AHB clock rate %d!\n", 419 __func__, ret); 420 421 /* 422 * Make sure those always on clocks are enabled to maintain the correct 423 * usecount and enabling/disabling of parent PLLs. 424 */ 425 for (i = 0; i < ARRAY_SIZE(clks_init_on); i++) 426 clk_prepare_enable(clks[clks_init_on[i]]); 427 428 if (IS_ENABLED(CONFIG_USB_MXS_PHY)) { 429 clk_prepare_enable(clks[IMX6SL_CLK_USBPHY1_GATE]); 430 clk_prepare_enable(clks[IMX6SL_CLK_USBPHY2_GATE]); 431 } 432 433 /* Audio-related clocks configuration */ 434 clk_set_parent(clks[IMX6SL_CLK_SPDIF0_SEL], clks[IMX6SL_CLK_PLL3_PFD3]); 435 436 /* set PLL5 video as lcdif pix parent clock */ 437 clk_set_parent(clks[IMX6SL_CLK_LCDIF_PIX_SEL], 438 clks[IMX6SL_CLK_PLL5_VIDEO_DIV]); 439 440 clk_set_parent(clks[IMX6SL_CLK_LCDIF_AXI_SEL], 441 clks[IMX6SL_CLK_PLL2_PFD2]); 442 } 443 CLK_OF_DECLARE(imx6sl, "fsl,imx6sl-ccm", imx6sl_clocks_init); 444