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Diffstat (limited to 'Documentation/devicetree/bindings/clock/exynos4-clock.txt')
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diff --git a/Documentation/devicetree/bindings/clock/exynos4-clock.txt b/Documentation/devicetree/bindings/clock/exynos4-clock.txt new file mode 100644 index 00000000000..ea5e26f16ae --- /dev/null +++ b/Documentation/devicetree/bindings/clock/exynos4-clock.txt @@ -0,0 +1,288 @@ +* Samsung Exynos4 Clock Controller + +The Exynos4 clock controller generates and supplies clock to various controllers +within the Exynos4 SoC. The clock binding described here is applicable to all +SoC's in the Exynos4 family. + +Required Properties: + +- comptible: should be one of the following. + - "samsung,exynos4210-clock" - controller compatible with Exynos4210 SoC. + - "samsung,exynos4412-clock" - controller compatible with Exynos4412 SoC. + +- reg: physical base address of the controller and length of memory mapped + region. + +- #clock-cells: should be 1. + +The following is the list of clocks generated by the controller. Each clock is +assigned an identifier and client nodes use this identifier to specify the +clock which they consume. Some of the clocks are available only on a particular +Exynos4 SoC and this is specified where applicable. + + + [Core Clocks] + + Clock ID SoC (if specific) + ----------------------------------------------- + + xxti 1 + xusbxti 2 + fin_pll 3 + fout_apll 4 + fout_mpll 5 + fout_epll 6 + fout_vpll 7 + sclk_apll 8 + sclk_mpll 9 + sclk_epll 10 + sclk_vpll 11 + arm_clk 12 + aclk200 13 + aclk100 14 + aclk160 15 + aclk133 16 + mout_mpll_user_t 17 Exynos4x12 + mout_mpll_user_c 18 Exynos4x12 + mout_core 19 + mout_apll 20 + + + [Clock Gate for Special Clocks] + + Clock ID SoC (if specific) + ----------------------------------------------- + + sclk_fimc0 128 + sclk_fimc1 129 + sclk_fimc2 130 + sclk_fimc3 131 + sclk_cam0 132 + sclk_cam1 133 + sclk_csis0 134 + sclk_csis1 135 + sclk_hdmi 136 + sclk_mixer 137 + sclk_dac 138 + sclk_pixel 139 + sclk_fimd0 140 + sclk_mdnie0 141 Exynos4412 + sclk_mdnie_pwm0 12 142 Exynos4412 + sclk_mipi0 143 + sclk_audio0 144 + sclk_mmc0 145 + sclk_mmc1 146 + sclk_mmc2 147 + sclk_mmc3 148 + sclk_mmc4 149 + sclk_sata 150 Exynos4210 + sclk_uart0 151 + sclk_uart1 152 + sclk_uart2 153 + sclk_uart3 154 + sclk_uart4 155 + sclk_audio1 156 + sclk_audio2 157 + sclk_spdif 158 + sclk_spi0 159 + sclk_spi1 160 + sclk_spi2 161 + sclk_slimbus 162 + sclk_fimd1 163 Exynos4210 + sclk_mipi1 164 Exynos4210 + sclk_pcm1 165 + sclk_pcm2 166 + sclk_i2s1 167 + sclk_i2s2 168 + sclk_mipihsi 169 Exynos4412 + sclk_mfc 170 + sclk_pcm0 171 + sclk_g3d 172 + sclk_pwm_isp 173 Exynos4x12 + sclk_spi0_isp 174 Exynos4x12 + sclk_spi1_isp 175 Exynos4x12 + sclk_uart_isp 176 Exynos4x12 + + [Peripheral Clock Gates] + + Clock ID SoC (if specific) + ----------------------------------------------- + + fimc0 256 + fimc1 257 + fimc2 258 + fimc3 259 + csis0 260 + csis1 261 + jpeg 262 + smmu_fimc0 263 + smmu_fimc1 264 + smmu_fimc2 265 + smmu_fimc3 266 + smmu_jpeg 267 + vp 268 + mixer 269 + tvenc 270 Exynos4210 + hdmi 271 + smmu_tv 272 + mfc 273 + smmu_mfcl 274 + smmu_mfcr 275 + g3d 276 + g2d 277 Exynos4210 + rotator 278 Exynos4210 + mdma 279 Exynos4210 + smmu_g2d 280 Exynos4210 + smmu_rotator 281 Exynos4210 + smmu_mdma 282 Exynos4210 + fimd0 283 + mie0 284 + mdnie0 285 Exynos4412 + dsim0 286 + smmu_fimd0 287 + fimd1 288 Exynos4210 + mie1 289 Exynos4210 + dsim1 290 Exynos4210 + smmu_fimd1 291 Exynos4210 + pdma0 292 + pdma1 293 + pcie_phy 294 + sata_phy 295 Exynos4210 + tsi 296 + sdmmc0 297 + sdmmc1 298 + sdmmc2 299 + sdmmc3 300 + sdmmc4 301 + sata 302 Exynos4210 + sromc 303 + usb_host 304 + usb_device 305 + pcie 306 + onenand 307 + nfcon 308 + smmu_pcie 309 + gps 310 + smmu_gps 311 + uart0 312 + uart1 313 + uart2 314 + uart3 315 + uart4 316 + i2c0 317 + i2c1 318 + i2c2 319 + i2c3 320 + i2c4 321 + i2c5 322 + i2c6 323 + i2c7 324 + i2c_hdmi 325 + tsadc 326 + spi0 327 + spi1 328 + spi2 329 + i2s1 330 + i2s2 331 + pcm0 332 + i2s0 333 + pcm1 334 + pcm2 335 + pwm 336 + slimbus 337 + spdif 338 + ac97 339 + modemif 340 + chipid 341 + sysreg 342 + hdmi_cec 343 + mct 344 + wdt 345 + rtc 346 + keyif 347 + audss 348 + mipi_hsi 349 Exynos4210 + mdma2 350 Exynos4210 + pixelasyncm0 351 + pixelasyncm1 352 + fimc_lite0 353 Exynos4x12 + fimc_lite1 354 Exynos4x12 + ppmuispx 355 Exynos4x12 + ppmuispmx 356 Exynos4x12 + fimc_isp 357 Exynos4x12 + fimc_drc 358 Exynos4x12 + fimc_fd 359 Exynos4x12 + mcuisp 360 Exynos4x12 + gicisp 361 Exynos4x12 + smmu_isp 362 Exynos4x12 + smmu_drc 363 Exynos4x12 + smmu_fd 364 Exynos4x12 + smmu_lite0 365 Exynos4x12 + smmu_lite1 366 Exynos4x12 + mcuctl_isp 367 Exynos4x12 + mpwm_isp 368 Exynos4x12 + i2c0_isp 369 Exynos4x12 + i2c1_isp 370 Exynos4x12 + mtcadc_isp 371 Exynos4x12 + pwm_isp 372 Exynos4x12 + wdt_isp 373 Exynos4x12 + uart_isp 374 Exynos4x12 + asyncaxim 375 Exynos4x12 + smmu_ispcx 376 Exynos4x12 + spi0_isp 377 Exynos4x12 + spi1_isp 378 Exynos4x12 + pwm_isp_sclk 379 Exynos4x12 + spi0_isp_sclk 380 Exynos4x12 + spi1_isp_sclk 381 Exynos4x12 + uart_isp_sclk 382 Exynos4x12 + + [Mux Clocks] + + Clock ID SoC (if specific) + ----------------------------------------------- + + mout_fimc0 384 + mout_fimc1 385 + mout_fimc2 386 + mout_fimc3 387 + mout_cam0 388 + mout_cam1 389 + mout_csis0 390 + mout_csis1 391 + mout_g3d0 392 + mout_g3d1 393 + mout_g3d 394 + aclk400_mcuisp 395 Exynos4x12 + + [Div Clocks] + + Clock ID SoC (if specific) + ----------------------------------------------- + + div_isp0 450 Exynos4x12 + div_isp1 451 Exynos4x12 + div_mcuisp0 452 Exynos4x12 + div_mcuisp1 453 Exynos4x12 + div_aclk200 454 Exynos4x12 + div_aclk400_mcuisp 455 Exynos4x12 + + +Example 1: An example of a clock controller node is listed below. + + clock: clock-controller@0x10030000 { + compatible = "samsung,exynos4210-clock"; + reg = <0x10030000 0x20000>; + #clock-cells = <1>; + }; + +Example 2: UART controller node that consumes the clock generated by the clock + controller. Refer to the standard clock bindings for information + about 'clocks' and 'clock-names' property. + + serial@13820000 { + compatible = "samsung,exynos4210-uart"; + reg = <0x13820000 0x100>; + interrupts = <0 54 0>; + clocks = <&clock 314>, <&clock 153>; + clock-names = "uart", "clk_uart_baud0"; + }; |