Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 1 | /* linux/arch/arm/mach-s5p64x0/clock-s5p6450.c |
| 2 | * |
| 3 | * Copyright (c) 2010 Samsung Electronics Co., Ltd. |
| 4 | * http://www.samsung.com |
| 5 | * |
| 6 | * S5P6450 - Clock support |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/module.h> |
| 15 | #include <linux/kernel.h> |
| 16 | #include <linux/list.h> |
| 17 | #include <linux/errno.h> |
| 18 | #include <linux/err.h> |
| 19 | #include <linux/clk.h> |
| 20 | #include <linux/sysdev.h> |
| 21 | #include <linux/io.h> |
| 22 | |
| 23 | #include <mach/hardware.h> |
| 24 | #include <mach/map.h> |
| 25 | #include <mach/regs-clock.h> |
| 26 | #include <mach/s5p64x0-clock.h> |
| 27 | |
| 28 | #include <plat/cpu-freq.h> |
| 29 | #include <plat/clock.h> |
| 30 | #include <plat/cpu.h> |
| 31 | #include <plat/pll.h> |
| 32 | #include <plat/s5p-clock.h> |
| 33 | #include <plat/clock-clksrc.h> |
| 34 | #include <plat/s5p6450.h> |
| 35 | |
| 36 | static struct clksrc_clk clk_mout_dpll = { |
| 37 | .clk = { |
| 38 | .name = "mout_dpll", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 39 | }, |
| 40 | .sources = &clk_src_dpll, |
| 41 | .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 5, .size = 1 }, |
| 42 | }; |
| 43 | |
| 44 | static u32 epll_div[][5] = { |
| 45 | { 133000000, 27307, 55, 2, 2 }, |
| 46 | { 100000000, 43691, 41, 2, 2 }, |
| 47 | { 480000000, 0, 80, 2, 0 }, |
| 48 | }; |
| 49 | |
| 50 | static int s5p6450_epll_set_rate(struct clk *clk, unsigned long rate) |
| 51 | { |
| 52 | unsigned int epll_con, epll_con_k; |
| 53 | unsigned int i; |
| 54 | |
| 55 | if (clk->rate == rate) /* Return if nothing changed */ |
| 56 | return 0; |
| 57 | |
| 58 | epll_con = __raw_readl(S5P64X0_EPLL_CON); |
| 59 | epll_con_k = __raw_readl(S5P64X0_EPLL_CON_K); |
| 60 | |
| 61 | epll_con_k &= ~(PLL90XX_KDIV_MASK); |
| 62 | epll_con &= ~(PLL90XX_MDIV_MASK | PLL90XX_PDIV_MASK | PLL90XX_SDIV_MASK); |
| 63 | |
| 64 | for (i = 0; i < ARRAY_SIZE(epll_div); i++) { |
| 65 | if (epll_div[i][0] == rate) { |
| 66 | epll_con_k |= (epll_div[i][1] << PLL90XX_KDIV_SHIFT); |
| 67 | epll_con |= (epll_div[i][2] << PLL90XX_MDIV_SHIFT) | |
| 68 | (epll_div[i][3] << PLL90XX_PDIV_SHIFT) | |
| 69 | (epll_div[i][4] << PLL90XX_SDIV_SHIFT); |
| 70 | break; |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | if (i == ARRAY_SIZE(epll_div)) { |
| 75 | printk(KERN_ERR "%s: Invalid Clock EPLL Frequency\n", __func__); |
| 76 | return -EINVAL; |
| 77 | } |
| 78 | |
| 79 | __raw_writel(epll_con, S5P64X0_EPLL_CON); |
| 80 | __raw_writel(epll_con_k, S5P64X0_EPLL_CON_K); |
| 81 | |
Seungwhan Youn | 9616674 | 2010-10-14 10:39:33 +0900 | [diff] [blame] | 82 | printk(KERN_WARNING "EPLL Rate changes from %lu to %lu\n", |
| 83 | clk->rate, rate); |
| 84 | |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 85 | clk->rate = rate; |
| 86 | |
| 87 | return 0; |
| 88 | } |
| 89 | |
| 90 | static struct clk_ops s5p6450_epll_ops = { |
Seungwhan Youn | d4b34c6 | 2010-10-14 10:39:08 +0900 | [diff] [blame] | 91 | .get_rate = s5p_epll_get_rate, |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 92 | .set_rate = s5p6450_epll_set_rate, |
| 93 | }; |
| 94 | |
| 95 | static struct clksrc_clk clk_dout_epll = { |
| 96 | .clk = { |
| 97 | .name = "dout_epll", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 98 | .parent = &clk_mout_epll.clk, |
| 99 | }, |
| 100 | .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 24, .size = 4 }, |
| 101 | }; |
| 102 | |
| 103 | static struct clksrc_clk clk_mout_hclk_sel = { |
| 104 | .clk = { |
| 105 | .name = "mout_hclk_sel", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 106 | }, |
| 107 | .sources = &clkset_hclk_low, |
| 108 | .reg_src = { .reg = S5P64X0_OTHERS, .shift = 15, .size = 1 }, |
| 109 | }; |
| 110 | |
| 111 | static struct clk *clkset_hclk_list[] = { |
| 112 | &clk_mout_hclk_sel.clk, |
| 113 | &clk_armclk.clk, |
| 114 | }; |
| 115 | |
| 116 | static struct clksrc_sources clkset_hclk = { |
| 117 | .sources = clkset_hclk_list, |
| 118 | .nr_sources = ARRAY_SIZE(clkset_hclk_list), |
| 119 | }; |
| 120 | |
| 121 | static struct clksrc_clk clk_hclk = { |
| 122 | .clk = { |
| 123 | .name = "clk_hclk", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 124 | }, |
| 125 | .sources = &clkset_hclk, |
| 126 | .reg_src = { .reg = S5P64X0_OTHERS, .shift = 14, .size = 1 }, |
| 127 | .reg_div = { .reg = S5P64X0_CLK_DIV0, .shift = 8, .size = 4 }, |
| 128 | }; |
| 129 | |
| 130 | static struct clksrc_clk clk_pclk = { |
| 131 | .clk = { |
| 132 | .name = "clk_pclk", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 133 | .parent = &clk_hclk.clk, |
| 134 | }, |
| 135 | .reg_div = { .reg = S5P64X0_CLK_DIV0, .shift = 12, .size = 4 }, |
| 136 | }; |
| 137 | static struct clksrc_clk clk_dout_pwm_ratio0 = { |
| 138 | .clk = { |
| 139 | .name = "clk_dout_pwm_ratio0", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 140 | .parent = &clk_mout_hclk_sel.clk, |
| 141 | }, |
| 142 | .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 16, .size = 4 }, |
| 143 | }; |
| 144 | |
| 145 | static struct clksrc_clk clk_pclk_to_wdt_pwm = { |
| 146 | .clk = { |
| 147 | .name = "clk_pclk_to_wdt_pwm", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 148 | .parent = &clk_dout_pwm_ratio0.clk, |
| 149 | }, |
| 150 | .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 20, .size = 4 }, |
| 151 | }; |
| 152 | |
| 153 | static struct clksrc_clk clk_hclk_low = { |
| 154 | .clk = { |
| 155 | .name = "clk_hclk_low", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 156 | }, |
| 157 | .sources = &clkset_hclk_low, |
| 158 | .reg_src = { .reg = S5P64X0_OTHERS, .shift = 6, .size = 1 }, |
| 159 | .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 8, .size = 4 }, |
| 160 | }; |
| 161 | |
| 162 | static struct clksrc_clk clk_pclk_low = { |
| 163 | .clk = { |
| 164 | .name = "clk_pclk_low", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 165 | .parent = &clk_hclk_low.clk, |
| 166 | }, |
| 167 | .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 12, .size = 4 }, |
| 168 | }; |
| 169 | |
| 170 | /* |
| 171 | * The following clocks will be disabled during clock initialization. It is |
| 172 | * recommended to keep the following clocks disabled until the driver requests |
| 173 | * for enabling the clock. |
| 174 | */ |
Kukjin Kim | 1526631 | 2011-01-04 18:14:00 +0900 | [diff] [blame] | 175 | static struct clk init_clocks_off[] = { |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 176 | { |
| 177 | .name = "usbhost", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 178 | .parent = &clk_hclk_low.clk, |
| 179 | .enable = s5p64x0_hclk0_ctrl, |
| 180 | .ctrlbit = (1 << 3), |
| 181 | }, { |
Boojin Kim | 3091e61 | 2011-09-02 09:44:39 +0900 | [diff] [blame] | 182 | .name = "dma", |
Boojin Kim | 2213d0c | 2011-08-18 19:24:55 +0900 | [diff] [blame] | 183 | .devname = "dma-pl330", |
Seungwhan Youn | b05d853 | 2010-10-19 18:13:11 +0900 | [diff] [blame] | 184 | .parent = &clk_hclk_low.clk, |
| 185 | .enable = s5p64x0_hclk0_ctrl, |
| 186 | .ctrlbit = (1 << 12), |
| 187 | }, { |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 188 | .name = "hsmmc", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 189 | .devname = "s3c-sdhci.0", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 190 | .parent = &clk_hclk_low.clk, |
| 191 | .enable = s5p64x0_hclk0_ctrl, |
| 192 | .ctrlbit = (1 << 17), |
| 193 | }, { |
| 194 | .name = "hsmmc", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 195 | .devname = "s3c-sdhci.1", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 196 | .parent = &clk_hclk_low.clk, |
| 197 | .enable = s5p64x0_hclk0_ctrl, |
| 198 | .ctrlbit = (1 << 18), |
| 199 | }, { |
| 200 | .name = "hsmmc", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 201 | .devname = "s3c-sdhci.2", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 202 | .parent = &clk_hclk_low.clk, |
| 203 | .enable = s5p64x0_hclk0_ctrl, |
| 204 | .ctrlbit = (1 << 19), |
| 205 | }, { |
| 206 | .name = "usbotg", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 207 | .parent = &clk_hclk_low.clk, |
| 208 | .enable = s5p64x0_hclk0_ctrl, |
| 209 | .ctrlbit = (1 << 20), |
| 210 | }, { |
| 211 | .name = "lcd", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 212 | .parent = &clk_h, |
| 213 | .enable = s5p64x0_hclk1_ctrl, |
| 214 | .ctrlbit = (1 << 1), |
| 215 | }, { |
| 216 | .name = "watchdog", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 217 | .parent = &clk_pclk_low.clk, |
| 218 | .enable = s5p64x0_pclk_ctrl, |
| 219 | .ctrlbit = (1 << 5), |
| 220 | }, { |
Atul Dahiya | 232d100 | 2010-12-02 13:36:12 +0900 | [diff] [blame] | 221 | .name = "rtc", |
Atul Dahiya | 232d100 | 2010-12-02 13:36:12 +0900 | [diff] [blame] | 222 | .parent = &clk_pclk_low.clk, |
| 223 | .enable = s5p64x0_pclk_ctrl, |
| 224 | .ctrlbit = (1 << 6), |
| 225 | }, { |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 226 | .name = "adc", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 227 | .parent = &clk_pclk_low.clk, |
| 228 | .enable = s5p64x0_pclk_ctrl, |
| 229 | .ctrlbit = (1 << 12), |
| 230 | }, { |
| 231 | .name = "i2c", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 232 | .devname = "s3c2440-i2c.0", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 233 | .parent = &clk_pclk_low.clk, |
| 234 | .enable = s5p64x0_pclk_ctrl, |
| 235 | .ctrlbit = (1 << 17), |
| 236 | }, { |
| 237 | .name = "spi", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 238 | .devname = "s3c64xx-spi.0", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 239 | .parent = &clk_pclk_low.clk, |
| 240 | .enable = s5p64x0_pclk_ctrl, |
| 241 | .ctrlbit = (1 << 21), |
| 242 | }, { |
| 243 | .name = "spi", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 244 | .devname = "s3c64xx-spi.1", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 245 | .parent = &clk_pclk_low.clk, |
| 246 | .enable = s5p64x0_pclk_ctrl, |
| 247 | .ctrlbit = (1 << 22), |
| 248 | }, { |
| 249 | .name = "iis", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 250 | .devname = "samsung-i2s.0", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 251 | .parent = &clk_pclk_low.clk, |
| 252 | .enable = s5p64x0_pclk_ctrl, |
| 253 | .ctrlbit = (1 << 26), |
| 254 | }, { |
Jassi Brar | 6cb26da | 2010-12-21 09:44:36 +0900 | [diff] [blame] | 255 | .name = "iis", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 256 | .devname = "samsung-i2s.1", |
Jassi Brar | 6cb26da | 2010-12-21 09:44:36 +0900 | [diff] [blame] | 257 | .parent = &clk_pclk_low.clk, |
| 258 | .enable = s5p64x0_pclk_ctrl, |
| 259 | .ctrlbit = (1 << 15), |
| 260 | }, { |
| 261 | .name = "iis", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 262 | .devname = "samsung-i2s.2", |
Jassi Brar | 6cb26da | 2010-12-21 09:44:36 +0900 | [diff] [blame] | 263 | .parent = &clk_pclk_low.clk, |
| 264 | .enable = s5p64x0_pclk_ctrl, |
| 265 | .ctrlbit = (1 << 16), |
| 266 | }, { |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 267 | .name = "i2c", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 268 | .devname = "s3c2440-i2c.1", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 269 | .parent = &clk_pclk_low.clk, |
| 270 | .enable = s5p64x0_pclk_ctrl, |
| 271 | .ctrlbit = (1 << 27), |
| 272 | }, { |
| 273 | .name = "dmc0", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 274 | .parent = &clk_pclk.clk, |
| 275 | .enable = s5p64x0_pclk_ctrl, |
| 276 | .ctrlbit = (1 << 30), |
| 277 | } |
| 278 | }; |
| 279 | |
| 280 | /* |
| 281 | * The following clocks will be enabled during clock initialization. |
| 282 | */ |
| 283 | static struct clk init_clocks[] = { |
| 284 | { |
| 285 | .name = "intc", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 286 | .parent = &clk_hclk.clk, |
| 287 | .enable = s5p64x0_hclk0_ctrl, |
| 288 | .ctrlbit = (1 << 1), |
| 289 | }, { |
| 290 | .name = "mem", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 291 | .parent = &clk_hclk.clk, |
| 292 | .enable = s5p64x0_hclk0_ctrl, |
| 293 | .ctrlbit = (1 << 21), |
| 294 | }, { |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 295 | .name = "uart", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 296 | .devname = "s3c6400-uart.0", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 297 | .parent = &clk_pclk_low.clk, |
| 298 | .enable = s5p64x0_pclk_ctrl, |
| 299 | .ctrlbit = (1 << 1), |
| 300 | }, { |
| 301 | .name = "uart", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 302 | .devname = "s3c6400-uart.1", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 303 | .parent = &clk_pclk_low.clk, |
| 304 | .enable = s5p64x0_pclk_ctrl, |
| 305 | .ctrlbit = (1 << 2), |
| 306 | }, { |
| 307 | .name = "uart", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 308 | .devname = "s3c6400-uart.2", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 309 | .parent = &clk_pclk_low.clk, |
| 310 | .enable = s5p64x0_pclk_ctrl, |
| 311 | .ctrlbit = (1 << 3), |
| 312 | }, { |
| 313 | .name = "uart", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 314 | .devname = "s3c6400-uart.3", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 315 | .parent = &clk_pclk_low.clk, |
| 316 | .enable = s5p64x0_pclk_ctrl, |
| 317 | .ctrlbit = (1 << 4), |
| 318 | }, { |
| 319 | .name = "timers", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 320 | .parent = &clk_pclk_to_wdt_pwm.clk, |
| 321 | .enable = s5p64x0_pclk_ctrl, |
| 322 | .ctrlbit = (1 << 7), |
| 323 | }, { |
| 324 | .name = "gpio", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 325 | .parent = &clk_pclk_low.clk, |
| 326 | .enable = s5p64x0_pclk_ctrl, |
| 327 | .ctrlbit = (1 << 18), |
| 328 | }, |
| 329 | }; |
| 330 | |
| 331 | static struct clk *clkset_uart_list[] = { |
| 332 | &clk_dout_epll.clk, |
| 333 | &clk_dout_mpll.clk, |
| 334 | }; |
| 335 | |
| 336 | static struct clksrc_sources clkset_uart = { |
| 337 | .sources = clkset_uart_list, |
| 338 | .nr_sources = ARRAY_SIZE(clkset_uart_list), |
| 339 | }; |
| 340 | |
| 341 | static struct clk *clkset_mali_list[] = { |
| 342 | &clk_mout_epll.clk, |
| 343 | &clk_mout_apll.clk, |
| 344 | &clk_mout_mpll.clk, |
| 345 | }; |
| 346 | |
| 347 | static struct clksrc_sources clkset_mali = { |
| 348 | .sources = clkset_mali_list, |
| 349 | .nr_sources = ARRAY_SIZE(clkset_mali_list), |
| 350 | }; |
| 351 | |
| 352 | static struct clk *clkset_group2_list[] = { |
| 353 | &clk_dout_epll.clk, |
| 354 | &clk_dout_mpll.clk, |
| 355 | &clk_ext_xtal_mux, |
| 356 | }; |
| 357 | |
| 358 | static struct clksrc_sources clkset_group2 = { |
| 359 | .sources = clkset_group2_list, |
| 360 | .nr_sources = ARRAY_SIZE(clkset_group2_list), |
| 361 | }; |
| 362 | |
| 363 | static struct clk *clkset_dispcon_list[] = { |
| 364 | &clk_dout_epll.clk, |
| 365 | &clk_dout_mpll.clk, |
| 366 | &clk_ext_xtal_mux, |
| 367 | &clk_mout_dpll.clk, |
| 368 | }; |
| 369 | |
| 370 | static struct clksrc_sources clkset_dispcon = { |
| 371 | .sources = clkset_dispcon_list, |
| 372 | .nr_sources = ARRAY_SIZE(clkset_dispcon_list), |
| 373 | }; |
| 374 | |
| 375 | static struct clk *clkset_hsmmc44_list[] = { |
| 376 | &clk_dout_epll.clk, |
| 377 | &clk_dout_mpll.clk, |
| 378 | &clk_ext_xtal_mux, |
| 379 | &s5p_clk_27m, |
| 380 | &clk_48m, |
| 381 | }; |
| 382 | |
| 383 | static struct clksrc_sources clkset_hsmmc44 = { |
| 384 | .sources = clkset_hsmmc44_list, |
| 385 | .nr_sources = ARRAY_SIZE(clkset_hsmmc44_list), |
| 386 | }; |
| 387 | |
| 388 | static struct clk *clkset_sclk_audio0_list[] = { |
| 389 | [0] = &clk_dout_epll.clk, |
| 390 | [1] = &clk_dout_mpll.clk, |
| 391 | [2] = &clk_ext_xtal_mux, |
| 392 | [3] = NULL, |
| 393 | [4] = NULL, |
| 394 | }; |
| 395 | |
| 396 | static struct clksrc_sources clkset_sclk_audio0 = { |
| 397 | .sources = clkset_sclk_audio0_list, |
| 398 | .nr_sources = ARRAY_SIZE(clkset_sclk_audio0_list), |
| 399 | }; |
| 400 | |
| 401 | static struct clksrc_clk clk_sclk_audio0 = { |
| 402 | .clk = { |
| 403 | .name = "audio-bus", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 404 | .enable = s5p64x0_sclk_ctrl, |
| 405 | .ctrlbit = (1 << 8), |
| 406 | .parent = &clk_dout_epll.clk, |
| 407 | }, |
| 408 | .sources = &clkset_sclk_audio0, |
| 409 | .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 10, .size = 3 }, |
| 410 | .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 8, .size = 4 }, |
| 411 | }; |
| 412 | |
| 413 | static struct clksrc_clk clksrcs[] = { |
| 414 | { |
| 415 | .clk = { |
| 416 | .name = "sclk_mmc", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 417 | .devname = "s3c-sdhci.0", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 418 | .ctrlbit = (1 << 24), |
| 419 | .enable = s5p64x0_sclk_ctrl, |
| 420 | }, |
| 421 | .sources = &clkset_group2, |
| 422 | .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 18, .size = 2 }, |
| 423 | .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 0, .size = 4 }, |
| 424 | }, { |
| 425 | .clk = { |
| 426 | .name = "sclk_mmc", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 427 | .devname = "s3c-sdhci.1", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 428 | .ctrlbit = (1 << 25), |
| 429 | .enable = s5p64x0_sclk_ctrl, |
| 430 | }, |
| 431 | .sources = &clkset_group2, |
| 432 | .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 20, .size = 2 }, |
| 433 | .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 4, .size = 4 }, |
| 434 | }, { |
| 435 | .clk = { |
| 436 | .name = "sclk_mmc", |
Thomas Abraham | d8b22d2 | 2011-06-14 19:12:27 +0900 | [diff] [blame] | 437 | .devname = "s3c-sdhci.2", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 438 | .ctrlbit = (1 << 26), |
| 439 | .enable = s5p64x0_sclk_ctrl, |
| 440 | }, |
| 441 | .sources = &clkset_group2, |
| 442 | .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 22, .size = 2 }, |
| 443 | .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 8, .size = 4 }, |
| 444 | }, { |
| 445 | .clk = { |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 446 | .name = "sclk_fimc", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 447 | .ctrlbit = (1 << 10), |
| 448 | .enable = s5p64x0_sclk_ctrl, |
| 449 | }, |
| 450 | .sources = &clkset_group2, |
| 451 | .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 26, .size = 2 }, |
| 452 | .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 12, .size = 4 }, |
| 453 | }, { |
| 454 | .clk = { |
| 455 | .name = "aclk_mali", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 456 | .ctrlbit = (1 << 2), |
| 457 | .enable = s5p64x0_sclk1_ctrl, |
| 458 | }, |
| 459 | .sources = &clkset_mali, |
| 460 | .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 8, .size = 2 }, |
| 461 | .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 4, .size = 4 }, |
| 462 | }, { |
| 463 | .clk = { |
| 464 | .name = "sclk_2d", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 465 | .ctrlbit = (1 << 12), |
| 466 | .enable = s5p64x0_sclk_ctrl, |
| 467 | }, |
| 468 | .sources = &clkset_mali, |
| 469 | .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 30, .size = 2 }, |
| 470 | .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 20, .size = 4 }, |
| 471 | }, { |
| 472 | .clk = { |
| 473 | .name = "sclk_usi", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 474 | .ctrlbit = (1 << 7), |
| 475 | .enable = s5p64x0_sclk_ctrl, |
| 476 | }, |
| 477 | .sources = &clkset_group2, |
| 478 | .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 10, .size = 2 }, |
| 479 | .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 16, .size = 4 }, |
| 480 | }, { |
| 481 | .clk = { |
| 482 | .name = "sclk_camif", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 483 | .ctrlbit = (1 << 6), |
| 484 | .enable = s5p64x0_sclk_ctrl, |
| 485 | }, |
| 486 | .sources = &clkset_group2, |
| 487 | .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 28, .size = 2 }, |
| 488 | .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 20, .size = 4 }, |
| 489 | }, { |
| 490 | .clk = { |
| 491 | .name = "sclk_dispcon", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 492 | .ctrlbit = (1 << 1), |
| 493 | .enable = s5p64x0_sclk1_ctrl, |
| 494 | }, |
| 495 | .sources = &clkset_dispcon, |
| 496 | .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 4, .size = 2 }, |
| 497 | .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 0, .size = 4 }, |
| 498 | }, { |
| 499 | .clk = { |
| 500 | .name = "sclk_hsmmc44", |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 501 | .ctrlbit = (1 << 30), |
| 502 | .enable = s5p64x0_sclk_ctrl, |
| 503 | }, |
| 504 | .sources = &clkset_hsmmc44, |
| 505 | .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 6, .size = 3 }, |
| 506 | .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 28, .size = 4 }, |
| 507 | }, |
| 508 | }; |
| 509 | |
Thomas Abraham | 0cfb26e | 2011-10-24 12:08:42 +0200 | [diff] [blame] | 510 | static struct clksrc_clk clk_sclk_uclk = { |
| 511 | .clk = { |
| 512 | .name = "uclk1", |
| 513 | .ctrlbit = (1 << 5), |
| 514 | .enable = s5p64x0_sclk_ctrl, |
| 515 | }, |
| 516 | .sources = &clkset_uart, |
| 517 | .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 13, .size = 1 }, |
| 518 | .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 16, .size = 4 }, |
| 519 | }; |
| 520 | |
Padmavathi Venna | c596704 | 2011-11-02 20:04:08 +0900 | [diff] [blame^] | 521 | static struct clksrc_clk clk_sclk_spi0 = { |
| 522 | .clk = { |
| 523 | .name = "sclk_spi", |
| 524 | .devname = "s3c64xx-spi.0", |
| 525 | .ctrlbit = (1 << 20), |
| 526 | .enable = s5p64x0_sclk_ctrl, |
| 527 | }, |
| 528 | .sources = &clkset_group2, |
| 529 | .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 14, .size = 2 }, |
| 530 | .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 0, .size = 4 }, |
| 531 | }; |
| 532 | |
| 533 | static struct clksrc_clk clk_sclk_spi1 = { |
| 534 | .clk = { |
| 535 | .name = "sclk_spi", |
| 536 | .devname = "s3c64xx-spi.1", |
| 537 | .ctrlbit = (1 << 21), |
| 538 | .enable = s5p64x0_sclk_ctrl, |
| 539 | }, |
| 540 | .sources = &clkset_group2, |
| 541 | .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 16, .size = 2 }, |
| 542 | .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 4, .size = 4 }, |
| 543 | }; |
| 544 | |
Thomas Abraham | 0cfb26e | 2011-10-24 12:08:42 +0200 | [diff] [blame] | 545 | static struct clksrc_clk *clksrc_cdev[] = { |
| 546 | &clk_sclk_uclk, |
Padmavathi Venna | c596704 | 2011-11-02 20:04:08 +0900 | [diff] [blame^] | 547 | &clk_sclk_spi0, |
| 548 | &clk_sclk_spi1, |
Thomas Abraham | 0cfb26e | 2011-10-24 12:08:42 +0200 | [diff] [blame] | 549 | }; |
| 550 | |
| 551 | static struct clk_lookup s5p6450_clk_lookup[] = { |
| 552 | CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_pclk_low.clk), |
| 553 | CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_sclk_uclk.clk), |
Padmavathi Venna | c596704 | 2011-11-02 20:04:08 +0900 | [diff] [blame^] | 554 | CLKDEV_INIT(NULL, "spi_busclk0", &clk_p), |
| 555 | CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk1", &clk_sclk_spi0.clk), |
| 556 | CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk1", &clk_sclk_spi1.clk), |
Thomas Abraham | 0cfb26e | 2011-10-24 12:08:42 +0200 | [diff] [blame] | 557 | }; |
| 558 | |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 559 | /* Clock initialization code */ |
| 560 | static struct clksrc_clk *sysclks[] = { |
| 561 | &clk_mout_apll, |
| 562 | &clk_mout_epll, |
| 563 | &clk_dout_epll, |
| 564 | &clk_mout_mpll, |
| 565 | &clk_dout_mpll, |
| 566 | &clk_armclk, |
| 567 | &clk_mout_hclk_sel, |
| 568 | &clk_dout_pwm_ratio0, |
| 569 | &clk_pclk_to_wdt_pwm, |
| 570 | &clk_hclk, |
| 571 | &clk_pclk, |
| 572 | &clk_hclk_low, |
| 573 | &clk_pclk_low, |
| 574 | &clk_sclk_audio0, |
| 575 | }; |
| 576 | |
Boojin Kim | 3091e61 | 2011-09-02 09:44:39 +0900 | [diff] [blame] | 577 | static struct clk dummy_apb_pclk = { |
| 578 | .name = "apb_pclk", |
| 579 | .id = -1, |
| 580 | }; |
| 581 | |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 582 | void __init_or_cpufreq s5p6450_setup_clocks(void) |
| 583 | { |
| 584 | struct clk *xtal_clk; |
| 585 | |
| 586 | unsigned long xtal; |
| 587 | unsigned long fclk; |
| 588 | unsigned long hclk; |
| 589 | unsigned long hclk_low; |
| 590 | unsigned long pclk; |
| 591 | unsigned long pclk_low; |
| 592 | |
| 593 | unsigned long apll; |
| 594 | unsigned long mpll; |
| 595 | unsigned long epll; |
| 596 | unsigned long dpll; |
| 597 | unsigned int ptr; |
| 598 | |
| 599 | /* Set S5P6450 functions for clk_fout_epll */ |
| 600 | |
Seungwhan Youn | d4b34c6 | 2010-10-14 10:39:08 +0900 | [diff] [blame] | 601 | clk_fout_epll.enable = s5p_epll_enable; |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 602 | clk_fout_epll.ops = &s5p6450_epll_ops; |
| 603 | |
| 604 | clk_48m.enable = s5p64x0_clk48m_ctrl; |
| 605 | |
| 606 | xtal_clk = clk_get(NULL, "ext_xtal"); |
| 607 | BUG_ON(IS_ERR(xtal_clk)); |
| 608 | |
| 609 | xtal = clk_get_rate(xtal_clk); |
| 610 | clk_put(xtal_clk); |
| 611 | |
| 612 | apll = s5p_get_pll45xx(xtal, __raw_readl(S5P64X0_APLL_CON), pll_4502); |
| 613 | mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P64X0_MPLL_CON), pll_4502); |
| 614 | epll = s5p_get_pll90xx(xtal, __raw_readl(S5P64X0_EPLL_CON), |
| 615 | __raw_readl(S5P64X0_EPLL_CON_K)); |
| 616 | dpll = s5p_get_pll46xx(xtal, __raw_readl(S5P6450_DPLL_CON), |
| 617 | __raw_readl(S5P6450_DPLL_CON_K), pll_4650c); |
| 618 | |
| 619 | clk_fout_apll.rate = apll; |
| 620 | clk_fout_mpll.rate = mpll; |
| 621 | clk_fout_epll.rate = epll; |
| 622 | clk_fout_dpll.rate = dpll; |
| 623 | |
| 624 | printk(KERN_INFO "S5P6450: PLL settings, A=%ld.%ldMHz, M=%ld.%ldMHz," \ |
| 625 | " E=%ld.%ldMHz, D=%ld.%ldMHz\n", |
| 626 | print_mhz(apll), print_mhz(mpll), print_mhz(epll), |
| 627 | print_mhz(dpll)); |
| 628 | |
| 629 | fclk = clk_get_rate(&clk_armclk.clk); |
| 630 | hclk = clk_get_rate(&clk_hclk.clk); |
| 631 | pclk = clk_get_rate(&clk_pclk.clk); |
| 632 | hclk_low = clk_get_rate(&clk_hclk_low.clk); |
| 633 | pclk_low = clk_get_rate(&clk_pclk_low.clk); |
| 634 | |
| 635 | printk(KERN_INFO "S5P6450: HCLK=%ld.%ldMHz, HCLK_LOW=%ld.%ldMHz," \ |
| 636 | " PCLK=%ld.%ldMHz, PCLK_LOW=%ld.%ldMHz\n", |
| 637 | print_mhz(hclk), print_mhz(hclk_low), |
| 638 | print_mhz(pclk), print_mhz(pclk_low)); |
| 639 | |
| 640 | clk_f.rate = fclk; |
| 641 | clk_h.rate = hclk; |
| 642 | clk_p.rate = pclk; |
| 643 | |
| 644 | for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++) |
| 645 | s3c_set_clksrc(&clksrcs[ptr], true); |
| 646 | } |
| 647 | |
| 648 | void __init s5p6450_register_clocks(void) |
| 649 | { |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 650 | int ptr; |
| 651 | |
| 652 | for (ptr = 0; ptr < ARRAY_SIZE(sysclks); ptr++) |
| 653 | s3c_register_clksrc(sysclks[ptr], 1); |
| 654 | |
| 655 | s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs)); |
| 656 | s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks)); |
Thomas Abraham | 0cfb26e | 2011-10-24 12:08:42 +0200 | [diff] [blame] | 657 | for (ptr = 0; ptr < ARRAY_SIZE(clksrc_cdev); ptr++) |
| 658 | s3c_register_clksrc(clksrc_cdev[ptr], 1); |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 659 | |
Kukjin Kim | 1526631 | 2011-01-04 18:14:00 +0900 | [diff] [blame] | 660 | s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off)); |
| 661 | s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off)); |
Thomas Abraham | 0cfb26e | 2011-10-24 12:08:42 +0200 | [diff] [blame] | 662 | clkdev_add_table(s5p6450_clk_lookup, ARRAY_SIZE(s5p6450_clk_lookup)); |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 663 | |
Boojin Kim | 3091e61 | 2011-09-02 09:44:39 +0900 | [diff] [blame] | 664 | s3c24xx_register_clock(&dummy_apb_pclk); |
| 665 | |
Kukjin Kim | 3109e55 | 2010-09-01 15:35:30 +0900 | [diff] [blame] | 666 | s3c_pwmclk_init(); |
| 667 | } |