The Exynos4 clocks are statically listed and registered using the Samsung
specific common clock helper functions. Both device tree based clock lookup
and clkdev based clock lookups are supported.
Cc: Mike Turquette <mturquette@xxxxxxxxxx>
Cc: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
Signed-off-by: Thomas Abraham <thomas.abraham@xxxxxxxxxx>
---
.../devicetree/bindings/clock/exynos4-clock.txt | 215 +++++++
drivers/clk/samsung/Makefile | 1 +
drivers/clk/samsung/clk-exynos4.c | 641 ++++++++++++++++++++
3 files changed, 857 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/clock/exynos4-clock.txt
create mode 100644 drivers/clk/samsung/clk-exynos4.c
diff --git a/Documentation/devicetree/bindings/clock/exynos4-clock.txt b/Documentation/devicetree/bindings/clock/exynos4-clock.txt
new file mode 100644
index 0000000..e874add
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/exynos4-clock.txt
@@ -0,0 +1,215 @@
+* 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
+
+
+ [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
+
+
+ [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
+
+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";
+ };
diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile
index a5bf189..5d98904 100644
--- a/drivers/clk/samsung/Makefile
+++ b/drivers/clk/samsung/Makefile
@@ -3,3 +3,4 @@
#
obj-$(CONFIG_PLAT_SAMSUNG) += clk.o clk-pll.o
+obj-$(CONFIG_ARCH_EXYNOS4) += clk-exynos4.o
diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c
new file mode 100644
index 0000000..6f0b6a7
--- /dev/null
+++ b/drivers/clk/samsung/clk-exynos4.c
@@ -0,0 +1,641 @@
+/*
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2012 Linaro Ltd.
+ * Author: Thomas Abraham <thomas.ab@xxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Common Clock Framework support for all Exynos4 SoC's.
+*/
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#include <plat/cpu.h>
+#include "clk.h"
+#include "clk-pll.h"
+
+/* the exynos4 soc type */
+enum exynos4_soc {
+ EXYNOS4210,
+ EXYNOS4X12,
+};
+
+/*
+ * Let each supported clock get a unique id. This id is used to lookup the clock
+ * for device tree based platforms. The clocks are categorized into three
+ * sections: core, sclk gate and bus interface gate clocks.
+ *
+ * When adding a new clock to this list, it is advised to choose a clock
+ * category and add it to the end of that category. That is because the the
+ * device tree source file is referring to these ids and any change in the
+ * sequence number of existing clocks will require corresponding change in the
+ * device tree files. This limitation would go away when pre-processor support
+ * for dtc would be available.
+ */
+enum exynos4_clks {
+ none,
+
+ /* core clocks */
+ xxti, xusbxti, fin_pll, fout_apll, fout_mpll, fout_epll, fout_vpll,
+ sclk_apll, sclk_mpll, sclk_epll, sclk_vpll, arm_clk, aclk200, aclk100,
+ aclk160, aclk133,
+
+ /* gate for special clocks (sclk) */
+ sclk_fimc0 = 128, sclk_fimc1, sclk_fimc2, sclk_fimc3, sclk_cam0,
+ sclk_cam1, sclk_csis0, sclk_csis1, sclk_hdmi, sclk_mixer, sclk_dac,
+ sclk_pixel, sclk_fimd0, sclk_mdnie0, sclk_mdnie_pwm0, sclk_mipi0,
+ sclk_audio0, sclk_mmc0, sclk_mmc1, sclk_mmc2, sclk_mmc3, sclk_mmc4,
+ sclk_sata, sclk_uart0, sclk_uart1, sclk_uart2, sclk_uart3, sclk_uart4,
+ sclk_audio1, sclk_audio2, sclk_spdif, sclk_spi0, sclk_spi1, sclk_spi2,
+ sclk_slimbus, sclk_fimd1, sclk_mipi1, sclk_pcm1, sclk_pcm2, sclk_i2s1,
+ sclk_i2s2, sclk_mipihsi,
+
+ /* gate clocks */
+ fimc0 = 256, fimc1, fimc2, fimc3, csis0, csis1, jpeg, smmu_fimc0,
+ smmu_fimc1, smmu_fimc2, smmu_fimc3, smmu_jpeg, vp, mixer, tvenc, hdmi,
+ smmu_tv, mfc, smmu_mfcl, smmu_mfcr, g3d, g2d, rotator, mdma, smmu_g2d,
+ smmu_rotator, smmu_mdma, fimd0, mie0, mdnie0, dsim0, smmu_fimd0, fimd1,
+ mie1, dsim1, smmu_fimd1, pdma0, pdma1, pcie_phy, sata_phy, tsi, sdmmc0,
+ sdmmc1, sdmmc2, sdmmc3, sdmmc4, sata, sromc, usb_host, usb_device, pcie,
+ onenand, nfcon, smmu_pcie, gps, smmu_gps, uart0, uart1, uart2, uart3,
+ uart4, i2c0, i2c1, i2c2, i2c3, i2c4, i2c5, i2c6, i2c7, i2c_hdmi, tsadc,
+ spi0, spi1, spi2, i2s1, i2s2, pcm0, i2s0, pcm1, pcm2, pwm, slimbus,
+ spdif, ac97, modemif, chipid, sysreg, hdmi_cec, mct, wdt, rtc, keyif,
+ audss, mipi_hsi, mdma2,
+
+ nr_clks,
+};
+
+/* list of all parent clock list */
+PNAME(mout_apll_p) = { "fin_pll", "fout_apll", };
+PNAME(mout_mpll_p) = { "fin_pll", "fout_mpll", };
+PNAME(mout_epll_p) = { "fin_pll", "fout_epll", };
+PNAME(mout_vpllsrc_p) = { "fin_pll", "sclk_hdmi24m", };
+PNAME(sclk_vpll_p4210) = { "mout_vpllsrc", "fout_vpll", };
+PNAME(mout_vpll_p) = { "fin_pll", "fout_vpll", };
+PNAME(mout_core_p) = { "mout_apll", "sclk_mpll", };
+PNAME(sclk_ampll_p) = { "sclk_mpll", "sclk_apll", };
+PNAME(mout_mpll_user_p) = { "fin_pll", "sclk_mpll", };
+PNAME(aclk_p4412) = { "mout_mpll_user", "sclk_apll", };
+PNAME(sclk_evpll_p) = { "sclk_epll", "sclk_vpll", };
+PNAME(mout_mfc_p) = { "mout_mfc0", "mout_mfc1", };
+PNAME(mout_g3d_p) = { "mout_g3d0", "mout_g3d1", };
+PNAME(mout_g2d_p) = { "mout_g2d0", "mout_g2d1", };
+PNAME(mout_mixer_p4210) = { "sclk_dac", "sclk_hdmi", };
+PNAME(mout_dac_p4210) = { "sclk_vpll", "sclk_hdmiphy", };
+PNAME(mout_hdmi_p) = { "sclk_pixel", "sclk_hdmiphy", };
+PNAME(mout_jpeg_p) = { "mout_jpeg0", "mout_jpeg1", };
+PNAME(group1_p) = { "xxti", "xusbxti", "sclk_hdmi24m", "sclk_usbphy0",
+ "none", "sclk_hdmiphy", "sclk_mpll",
+ "mout_epll", "mout_vpll", };
+PNAME(mout_audio0_p) = { "cdclk0", "none", "sclk_hdmi24m", "sclk_usbphy0",
+ "xxti", "xusbxti", "sclk_mpll", "sclk_epll",
+ "sclk_vpll" };
+PNAME(mout_audio1_p) = { "cdclk1", "none", "sclk_hdmi24m", "sclk_usbphy0",
+ "xxti", "xusbxti", "sclk_mpll", "mout_epll",
+ "mout_vpll", };
+PNAME(mout_audio2_p) = { "cdclk2", "none", "sclk_hdmi24m", "sclk_usbphy0",
+ "xxti", "xusbxti", "sclk_mpll", "mout_epll",
+ "mout_vpll", };
+PNAME(mout_spdif_p) = { "sclk_audio0", "sclk_audio1", "sclk_audio2",
+ "spdif_extclk", };
+
+/* fixed rate clocks generated outside the soc */
+struct samsung_fixed_rate_clock exynos4_fixed_rate_ext_clks[] = {
+ FRATE(xxti, "xxti", NULL, CLK_IS_ROOT, 0),
+ FRATE(xusbxti, "xusbxti", NULL, CLK_IS_ROOT, 0),
+};
+
+/* fixed rate clocks generated inside the soc */
+struct samsung_fixed_rate_clock exynos4_fixed_rate_clks[] = {
+ FRATE(none, "sclk_hdmi24m", NULL, CLK_IS_ROOT, 24000000),
+ FRATE(none, "sclk_hdmiphy", NULL, CLK_IS_ROOT, 27000000),
+ FRATE(none, "sclk_usbphy0", NULL, CLK_IS_ROOT, 48000000),
+};
+
+struct samsung_fixed_rate_clock exynos4210_fixed_rate_clks[] = {
+ FRATE(none, "sclk_usbphy1", NULL, CLK_IS_ROOT, 48000000),
+};
+
+/* list of mux clocks supported in all exynos4 soc's */
+struct samsung_mux_clock exynos4_mux_clks[] = {
+ MUX(none, "mout_apll", mout_apll_p, 0x14200, 0, 1),
+ MUX(none, "mout_core", mout_core_p, 0x14200, 16, 1),
+ MUX_A(sclk_epll, "sclk_epll", mout_epll_p, 0xc210, 4, 1, "sclk_epll"),
+ MUX(none, "mout_fimc0", group1_p, 0xc220, 0, 4),
+ MUX(none, "mout_fimc1", group1_p, 0xc220, 4, 4),
+ MUX(none, "mout_fimc2", group1_p, 0xc220, 8, 4),
+ MUX(none, "mout_fimc3", group1_p, 0xc220, 12, 4),
+ MUX(none, "mout_cam0", group1_p, 0xc220, 16, 4),
+ MUX(none, "mout_cam1", group1_p, 0xc220, 20, 4),
+ MUX(none, "mout_csis0", group1_p, 0xc220, 24, 4),
+ MUX(none, "mout_csis1", group1_p, 0xc220, 28, 4),
+ MUX(none, "mout_hdmi", mout_hdmi_p, 0xc224, 0, 1),
+ MUX(none, "mout_mfc0", sclk_ampll_p, 0xc228, 0, 1),
+ MUX(none, "mout_mfc1", sclk_evpll_p, 0xc228, 4, 1),
+ MUX(none, "mout_mfc", mout_mfc_p, 0xc228, 8, 1),
+ MUX(none, "mout_g3d0", sclk_ampll_p, 0xc22c, 0, 1),
+ MUX(none, "mout_g3d1", sclk_evpll_p, 0xc22c, 4, 1),
+ MUX(none, "mout_g3d", mout_g3d_p, 0xc22c, 8, 1),
+ MUX(none, "mout_fimd0", group1_p, 0xc234, 0, 4),
+ MUX(none, "mout_mipi0", group1_p, 0xc234, 12, 4),
+ MUX(none, "mout_audio0", mout_audio0_p, 0xc23c, 0, 4),
+ MUX(none, "mout_mmc0", group1_p, 0xc240, 0, 4),
+ MUX(none, "mout_mmc1", group1_p, 0xc240, 4, 4),
+ MUX(none, "mout_mmc2", group1_p, 0xc240, 8, 4),
+ MUX(none, "mout_mmc3", group1_p, 0xc240, 12, 4),
+ MUX(none, "mout_mmc4", group1_p, 0xc240, 16, 4),
+ MUX(none, "mout_uart0", group1_p, 0xc250, 0, 4),
+ MUX(none, "mout_uart1", group1_p, 0xc250, 4, 4),
+ MUX(none, "mout_uart2", group1_p, 0xc250, 8, 4),
+ MUX(none, "mout_uart3", group1_p, 0xc250, 12, 4),
+ MUX(none, "mout_uart4", group1_p, 0xc250, 16, 4),
+ MUX(none, "mout_audio1", mout_audio1_p, 0xc254, 0, 4),
+ MUX(none, "mout_audio2", mout_audio2_p, 0xc254, 4, 4),
+ MUX(none, "mout_spdif", mout_spdif_p, 0xc254, 8, 2),
+ MUX(none, "mout_spi0", group1_p, 0xc254, 16, 4),
+ MUX(none, "mout_spi1", group1_p, 0xc254, 20, 4),
+ MUX(none, "mout_spi2", group1_p, 0xc254, 24, 4),
+};
+
+/* list of mux clocks supported in exynos4210 soc */
+struct samsung_mux_clock exynos4210_mux_clks[] = {
+ MUX(none, "mout_aclk200", sclk_ampll_p, 0xc210, 12, 1),
+ MUX(none, "mout_aclk100", sclk_ampll_p, 0xc210, 16, 1),
+ MUX(none, "mout_aclk160", sclk_ampll_p, 0xc210, 20, 1),
+ MUX(none, "mout_aclk133", sclk_ampll_p, 0xc210, 24, 1),
+ MUX(none, "mout_vpllsrc", mout_vpllsrc_p, 0xc214, 0, 1),
+ MUX_A(sclk_mpll, "sclk_mpll", mout_mpll_p, 0x14200, 8, 1, "sclk_mpll"),
+ MUX_A(sclk_vpll, "sclk_vpll", sclk_vpll_p4210, 0xc210, 8, 1, "sclk_vpll"),
+ MUX(none, "mout_mixer", mout_mixer_p4210, 0xc224, 4, 1),
+ MUX(none, "mout_dac", mout_dac_p4210, 0xc224, 8, 1),
+ MUX(none, "mout_g2d0", sclk_ampll_p, 0xc230, 0, 1),
+ MUX(none, "mout_g2d1", sclk_evpll_p, 0xc230, 4, 1),
+ MUX(none, "mout_g2d", mout_g2d_p, 0xc230, 8, 1),
+ MUX(none, "mout_fimd1", group1_p, 0xc238, 0, 4),
+ MUX(none, "mout_mipi1", group1_p, 0xc238, 12, 4),
+};
+
+/* list of mux clocks supported in exynos4x12 soc */
+struct samsung_mux_clock exynos4x12_mux_clks[] = {
+ MUX_A(sclk_mpll, "sclk_mpll", mout_mpll_p, 0x10200, 12, 1, "sclk_mpll"),
+ MUX(none, "mout_mpll_user", mout_mpll_user_p, 0x4200, 4, 1),
+ MUX_A(sclk_vpll, "sclk_vpll", mout_vpll_p, 0xc210, 8, 1, "sclk_vpll"),
+ MUX(none, "mout_aclk200", aclk_p4412, 0xc210, 12, 1),
+ MUX(none, "mout_aclk100", aclk_p4412, 0xc210, 16, 1),
+ MUX(none, "mout_aclk160", aclk_p4412, 0xc210, 20, 1),
+ MUX(none, "mout_aclk133", aclk_p4412, 0xc210, 24, 1),
+ MUX(none, "mout_mdnie0", group1_p, 0xc234, 4, 4),
+ MUX(none, "mout_mdnie_pwm0", group1_p, 0xc234, 8, 4),
+ MUX(none, "mout_sata", sclk_ampll_p, 0xc240, 24, 1),
+ MUX(none, "mout_jpeg0", sclk_ampll_p, 0xc258, 0, 1),
+ MUX(none, "mout_jpeg1", sclk_evpll_p, 0xc258, 4, 1),
+ MUX(none, "mout_jpeg", mout_jpeg_p, 0xc258, 8, 1),
+};
+
+/* list of divider clocks supported in all exynos4 soc's */
+struct samsung_div_clock exynos4_div_clks[] = {
+ DIV_A(sclk_apll, "sclk_apll", "mout_apll", 0x14500, 24, 3, "sclk_apll"),
+ DIV(none, "div_core", "mout_core", 0x14500, 0, 3),
+ DIV(none, "div_core2", "div_core", 0x14500, 28, 3),
+ DIV_A(arm_clk, "arm_clk", "div_core2", 0x14500, 28, 3, "arm_clk"),
+ DIV(aclk200, "aclk200", "mout_aclk200", 0xc510, 0, 3),
+ DIV(aclk100, "aclk100", "mout_aclk100", 0xc510, 4, 4),
+ DIV(aclk160, "aclk160", "mout_aclk160", 0xc510, 8, 3),
+ DIV(aclk133, "aclk133", "mout_aclk133", 0xc510, 12, 3),
+ DIV(none, "div_fimc0", "mout_fimc0", 0xc520, 0, 4),
+ DIV(none, "div_fimc1", "mout_fimc1", 0xc520, 4, 4),
+ DIV(none, "div_fimc2", "mout_fimc2", 0xc520, 8, 4),
+ DIV(none, "div_fimc3", "mout_fimc3", 0xc520, 12, 4),
+ DIV(none, "div_cam0", "mout_cam0", 0xc520, 16, 4),
+ DIV(none, "div_cam1", "mout_cam1", 0xc520, 20, 4),
+ DIV(none, "div_csis0", "mout_csis0", 0xc520, 24, 4),
+ DIV(none, "div_csis1", "mout_csis1", 0xc520, 28, 4),
+ DIV(sclk_pixel, "sclk_pixel", "sclk_vpll", 0xc524, 0, 4),
+ DIV(none, "div_mfc", "mout_mfc", 0xc528, 0, 4),
+ DIV(none, "div_g3d", "mout_g3d", 0xc52c, 0, 4),
+ DIV(none, "div_fimd0", "mout_fimd0", 0xc534, 0, 4),
+ DIV(none, "div_mipi0", "mout_mipi0", 0xc534, 16, 4),
+ DIV(none, "div_mipi_pre0", "div_mipi0", 0xc534, 20, 4),
+ DIV(none, "div_audio0", "mout_audio0", 0xc53c, 0, 4),
+ DIV(none, "div_pcm0", "sclk_audio0", 0xc53c, 4, 8),
+ DIV(none, "div_mmc0", "mout_mmc0", 0xc544, 0, 4),
+ DIV(none, "div_mmc_pre0", "div_mmc0", 0xc544, 8, 8),
+ DIV(none, "div_mmc1", "mout_mmc1", 0xc544, 16, 4),
+ DIV(none, "div_mmc_pre1", "div_mmc1", 0xc544, 24, 8),
+ DIV(none, "div_mmc2", "mout_mmc2", 0xc548, 0, 4),
+ DIV(none, "div_mmc_pre2", "div_mmc2", 0xc548, 8, 8),
+ DIV(none, "div_mmc3", "mout_mmc3", 0xc548, 16, 4),
+ DIV(none, "div_mmc_pre3", "div_mmc3", 0xc548, 24, 8),
+ DIV(none, "div_mmc4", "mout_mmc4", 0xc54c, 0, 4),
+ DIV(none, "div_mmc_pre4", "div_mmc4", 0xc54c, 8, 8),
+ DIV(none, "div_uart0", "mout_uart0", 0xc550, 0, 4),
+ DIV(none, "div_uart1", "mout_uart1", 0xc550, 4, 4),
+ DIV(none, "div_uart2", "mout_uart2", 0xc550, 8, 4),
+ DIV(none, "div_uart3", "mout_uart3", 0xc550, 12, 4),
+ DIV(none, "div_uart4", "mout_uart4", 0xc550, 16, 4),
+ DIV(none, "div_spi0", "mout_spi0", 0xc554, 0, 4),
+ DIV(none, "div_spi_pre0", "div_spi0", 0xc554, 8, 8),
+ DIV(none, "div_spi1", "mout_spi1", 0xc554, 16, 4),
+ DIV(none, "div_spi_pre1", "div_spi1", 0xc554, 24, 8),
+ DIV(none, "div_spi2", "mout_spi2", 0xc558, 0, 4),
+ DIV(none, "div_spi_pre2", "div_spi2", 0xc558, 8, 8),
+ DIV(sclk_slimbus, "sclk_slimbus", "sclk_epll", 0xc55c, 4, 4),
+ DIV(none, "div_audio1", "mout_audio1", 0xc560, 0, 4),
+ DIV(sclk_pcm1, "sclk_pcm1", "sclk_audio1", 0xc560, 4, 8),
+ DIV(none, "div_audio2", "mout_audio2", 0xc560, 16, 4),
+ DIV(sclk_pcm2, "sclk_pcm2", "sclk_audio2", 0xc560, 20, 8),
+ DIV(sclk_i2s1, "sclk_i2s1", "sclk_audio1", 0xc564, 0, 6),
+ DIV(sclk_i2s2, "sclk_i2s2", "sclk_audio2", 0xc564, 8, 6),
+};
+
+/* list of divider clocks supported in exynos4210 soc */
+struct samsung_div_clock exynos4210_div_clks[] = {
+ DIV(none, "div_g2d", "mout_g2d", 0xc530, 0, 4),
+ DIV(none, "div_fimd1", "mout_fimd1", 0xc538, 0, 4),
+ DIV(none, "div_mipi1", "mout_mipi1", 0xc538, 16, 4),
+ DIV(none, "div_mipi_pre1", "div_mipi1", 0xc538, 20, 4),
+ DIV(none, "div_sata", "mout_sata", 0xc540, 20, 4),
+};
+
+/* list of divider clocks supported in exynos4x12 soc */
+struct samsung_div_clock exynos4x12_div_clks[] = {
+ DIV(none, "div_mdnie0", "mout_mdnie0", 0xc534, 4, 4),
+ DIV(none, "div_mdnie_pwm0", "mout_mdnie_pwm0", 0xc534, 8, 4),
+ DIV(none, "div_mdnie_pwm_pre0", "div_mdnie_pwm0", 0xc534, 12, 4),
+ DIV(none, "div_mipihsi", "mout_mipihsi", 0xc540, 20, 4),
+ DIV(none, "div_jpeg", "mout_jpeg", 0xc568, 0, 4),
+};
+
+/* list of gate clocks supported in all exynos4 soc's */
+struct samsung_gate_clock exynos4_gate_clks[] = {
+ /*
+ * After all Exynos4 based platforms are migrated to use device tree,
+ * the device name and clock alias names specified below for some
+ * of the clocks can be removed.
+ */
+ GATE_DA(sclk_fimc0, "exynos4-fimc.0", "sclk_fimc0", "div_fimc0",
+ 0xc320, 0, CLK_SET_RATE_PARENT, 0, "sclk_fimc"),
+ GATE_DA(sclk_fimc1, "exynos4-fimc.1", "sclk_fimc1", "div_fimc1",
+ 0xc320, 4, CLK_SET_RATE_PARENT, 0, "sclk_fimc"),
+ GATE_DA(sclk_fimc2, "exynos4-fimc.2", "sclk_fimc2", "div_fimc2",
+ 0xc320, 8, CLK_SET_RATE_PARENT, 0, "sclk_fimc"),
+ GATE_DA(sclk_fimc3, "exynos4-fimc.3", "sclk_fimc3", "div_fimc3",
+ 0xc320, 12, CLK_SET_RATE_PARENT, 0, "sclk_fimc"),
+ GATE_DA(sclk_csis0, "s5p-mipi-csis.0", "sclk_csis0", "div_csis0",
+ 0xc320, 24, CLK_SET_RATE_PARENT, 0, "sclk_csis"),
+ GATE_DA(sclk_csis1, "s5p-mipi-csis.1", "sclk_csis1", "div_csis1",
+ 0xc320, 28, CLK_SET_RATE_PARENT, 0, "sclk_csis"),
+ GATE(sclk_hdmi, "sclk_hdmi", "mout_hdmi", 0xc324, 0, 0, 0),
+ GATE(sclk_mixer, "sclk_mixer", "mout_mixer", 0xc324, 4, 0, 0),
+ GATE(sclk_dac, "sclk_dac", "mout_dac", 0xc324, 8, 0, 0),
+ GATE_DA(sclk_fimd0, "exynos4-fb.0", "sclk_fimd0", "div_fimd0",
+ 0xc334, 0, CLK_SET_RATE_PARENT, 0, "sclk_fimd"),
+ GATE(sclk_mipi0, "sclk_mipi0", "div_mipi_pre0",
+ 0xc334, 12, CLK_SET_RATE_PARENT, 0),
+ GATE_DA(sclk_mmc0, "exynos4-sdhci.0", "sclk_mmc0", "div_mmc-pre0",
+ 0xc340, 0, CLK_SET_RATE_PARENT, 0, "mmc_busclk.2"),
+ GATE_DA(sclk_mmc1, "exynos4-sdhci.1", "sclk_mmc1", "div_mmc-pre1",
+ 0xc340, 4, CLK_SET_RATE_PARENT, 0, "mmc_busclk.2"),
+ GATE_DA(sclk_mmc2, "exynos4-sdhci.2", "sclk_mmc2", "div_mmc-pre2",
+ 0xc340, 8, CLK_SET_RATE_PARENT, 0, "mmc_busclk.2"),
+ GATE_DA(sclk_mmc3, "exynos4-sdhci.3", "sclk_mmc3", "div_mmc-pre3",
+ 0xc340, 12, CLK_SET_RATE_PARENT, 0, "mmc_busclk.2"),
+ GATE_DA(sclk_mmc4, NULL, "sclk_mmc4", "div_mmc-pre4",
+ 0xc340, 16, CLK_SET_RATE_PARENT, 0, "ciu"),
+ GATE_DA(sclk_uart0, "exynos4210-uart.0", "uclk0", "div_uart0",
+ 0xc350, 0, CLK_SET_RATE_PARENT, 0, "clk_uart_baud0"),
+ GATE_DA(sclk_uart1, "exynos4210-uart.1", "uclk1", "div_uart1",
+ 0xc350, 4, CLK_SET_RATE_PARENT, 0, "clk_uart_baud0"),
+ GATE_DA(sclk_uart2, "exynos4210-uart.2", "uclk2", "div_uart2",
+ 0xc350, 8, CLK_SET_RATE_PARENT, 0, "clk_uart_baud0"),
+ GATE_DA(sclk_uart3, "exynos4210-uart.3", "uclk3", "div_uart3",
+ 0xc350, 12, CLK_SET_RATE_PARENT, 0, "clk_uart_baud0"),
+ GATE_DA(sclk_uart4, "exynos4210-uart.4", "uclk4", "div_uart4",
+ 0xc350, 16, CLK_SET_RATE_PARENT, 0, "clk_uart_baud0"),
+ GATE(sclk_audio1, "sclk_audio1", "div_audio1", 0xc354, 0, CLK_SET_RATE_PARENT, 0),
+ GATE(sclk_audio2, "sclk_audio2", "div_audio2", 0xc354, 4, CLK_SET_RATE_PARENT, 0),
+ GATE(sclk_spdif, "sclk_spdif", "mout_spdif", 0xc354, 8, 0, 0),
+ GATE_DA(sclk_spi0, "exynos4210-spi.0", "sclk_spi0", "div_spi_pre0",
+ 0xc354, 16, CLK_SET_RATE_PARENT, 0, "spi_busclk0"),
+ GATE_DA(sclk_spi1, "exynos4210-spi.1", "sclk_spi1", "div_spi_pre1",
+ 0xc354, 20, CLK_SET_RATE_PARENT, 0, "spi_busclk0"),
+ GATE_DA(sclk_spi2, "exynos4210-spi.2", "sclk_spi2", "div_spi_pre2",
+ 0xc354, 24, CLK_SET_RATE_PARENT, 0, "spi_busclk0"),
+ GATE_DA(fimc0, "exynos4-fimc.0", "fimc0", "aclk160", 0xc920, 0, 0, 0, "fimc"),
+ GATE_DA(fimc1, "exynos4-fimc.1", "fimc1", "aclk160", 0xc920, 1, 0, 0, "fimc"),
+ GATE_DA(fimc2, "exynos4-fimc.2", "fimc2", "aclk160", 0xc920, 2, 0, 0, "fimc"),
+ GATE_DA(fimc3, "exynos4-fimc.3", "fimc3", "aclk160", 0xc920, 3, 0, 0, "fimc"),
+ GATE_DA(csis0, "s5p-mipi-csis.0", "csis0", "aclk160", 0xc920, 4, 0, 0, "fimc"),
+ GATE_DA(csis1, "s5p-mipi-csis.1", "csis1", "aclk160", 0xc920, 5, 0, 0, "fimc"),
+ GATE(jpeg, "jpeg", "aclk160", 0xc920, 6, 0, 0),
+ GATE_DA(smmu_fimc0, "exynos-sysmmu.5", "smmu_fimc0", "aclk160",
+ 0xc920, 7, 0, 0, "sysmmu"),
+ GATE_DA(smmu_fimc1, "exynos-sysmmu.6", "smmu_fimc1", "aclk160",
+ 0xc920, 8, 0, 0, "sysmmu"),
+ GATE_DA(smmu_fimc2, "exynos-sysmmu.7", "smmu_fimc2", "aclk160",
+ 0xc920, 9, 0, 0, "sysmmu"),
+ GATE_DA(smmu_fimc3, "exynos-sysmmu.8", "smmu_fimc3", "aclk160",
+ 0xc920, 10, 0, 0, "sysmmu"),
+ GATE_DA(smmu_jpeg, "exynos-sysmmu.3", "smmu_jpeg", "aclk160", 0xc920, 11, 0, 0, "sysmmu"),
+ GATE_D(vp, "s5p-mixer", "vp", "aclk160", 0xc924, 0, 0, 0),
+ GATE_D(mixer, "s5p-mixer", "mixer", "aclk160", 0xc924, 1, 0, 0),
+ GATE_D(hdmi, "exynos4-hdmi", "hdmi", "aclk160", 0xc924, 3, 0, 0),
+ GATE_DA(smmu_tv, "exynos-sysmmu.2", "smmu_tv", "aclk160", 0xc924, 4, 0, 0, "sysmmu"),
+ GATE_DA(mfc, "s5p-mfc", "mfc", "aclk100", 0xc928, 0, 0, 0, "mfc"),
+ GATE_DA(smmu_mfcl, "exynos-sysmmu.0", "smmu_mfcl", "aclk100", 0xc928, 1, 0, 0, "sysmmu"),
+ GATE_DA(smmu_mfcr, "exynos-sysmmu.1", "smmu_mfcr", "aclk100", 0xc928, 2, 0, 0, "sysmmu"),
+ GATE(g3d, "g3d", "aclk200", 0xc92c, 0, 0, 0),
+ GATE_DA(fimd0, "exynos4-fb.0", "fimd0", "aclk160", 0xc934, 0, 0, 0, "fimd"),
+ GATE(mie0, "mie0", "aclk160", 0xc934, 1, 0, 0),
+ GATE(dsim0, "dsim0", "aclk160", 0xc934, 3, 0, 0),
+ GATE_DA(smmu_fimd0, "exynos-sysmmu.10", "smmu_fimd0", "aclk160",
+ 0xc934, 4, 0, 0, "sysmmu"),
+ GATE(fimd1, "fimd1", "aclk160", 0xc938, 0, 0, 0),
+ GATE(mie1, "mie1", "aclk160", 0xc938, 1, 0, 0),
+ GATE(dsim1, "dsim1", "aclk160", 0xc938, 3, 0, 0),
+ GATE(smmu_fimd1, "smmu_fimd1", "aclk160", 0xc938, 4, 0, 0),
+ GATE_DA(pdma0, "dma-pl330.0", "pdma0", "aclk133", 0xc940, 0, 0, 0, "dma"),
+ GATE_DA(pdma1, "dma-pl330.1", "pdma1", "aclk133", 0xc940, 1, 0, 0, "dma"),
+ GATE(tsi, "tsi", "aclk133", 0xc940, 4, 0, 0),
+ GATE_DA(sdmmc0, "exynos4-sdhci.0", "sdmmc0", "aclk133", 0xc940, 5, 0, 0, "hsmmc"),
+ GATE_DA(sdmmc1, "exynos4-sdhci.1", "sdmmc1", "aclk133", 0xc940, 6, 0, 0, "hsmmc"),
+ GATE_DA(sdmmc2, "exynos4-sdhci.2", "sdmmc2", "aclk133", 0xc940, 7, 0, 0, "hsmmc"),
+ GATE_DA(sdmmc3, "exynos4-sdhci.3", "sdmmc3", "aclk133", 0xc940, 8, 0, 0, "hsmmc"),
+ GATE_A(sdmmc4, "sdmmc4", "aclk133", 0xc940, 9, 0, 0, "biu"),
+ GATE(sromc, "sromc", "aclk133", 0xc940, 11, 0, 0),
+ GATE_A(usb_host, "usb_host", "aclk133", 0xc940, 12, 0, 0, "usbhost"),
+ GATE(usb_device, "usb_device", "aclk133", 0xc940, 13, 0, 0),
+ GATE(onenand, "onenand", "aclk133", 0xc940, 15, 0, 0),
+ GATE(nfcon, "nfcon", "aclk133", 0xc940, 16, 0, 0),
+ GATE(gps, "gps", "aclk133", 0xc94c, 0, 0, 0),
+ GATE(smmu_gps, "smmu_gps", "aclk133", 0xc94c, 1, 0, 0),
+ GATE_DA(uart0, "exynos4210-uart.0", "uart0", "aclk100", 0xc950, 0, 0, 0, "uart"),
+ GATE_DA(uart1, "exynos4210-uart.1", "uart1", "aclk100", 0xc950, 1, 0, 0, "uart"),
+ GATE_DA(uart2, "exynos4210-uart.2", "uart2", "aclk100", 0xc950, 2, 0, 0, "uart"),
+ GATE_DA(uart3, "exynos4210-uart.3", "uart3", "aclk100", 0xc950, 3, 0, 0, "uart"),
+ GATE_DA(uart4, "exynos4210-uart.4", "uart4", "aclk100", 0xc950, 4, 0, 0, "uart"),
+ GATE_DA(i2c0, "s3c2440-i2c.0", "i2c0", "aclk100", 0xc950, 6, 0, 0, "i2c"),
+ GATE_DA(i2c1, "s3c2440-i2c.1", "i2c1", "aclk100", 0xc950, 7, 0, 0, "i2c"),
+ GATE_DA(i2c2, "s3c2440-i2c.2", "i2c2", "aclk100", 0xc950, 8, 0, 0, "i2c"),
+ GATE_DA(i2c3, "s3c2440-i2c.3", "i2c3", "aclk100", 0xc950, 9, 0, 0, "i2c"),
+ GATE_DA(i2c4, "s3c2440-i2c.4", "i2c4", "aclk100", 0xc950, 10, 0, 0, "i2c"),
+ GATE_DA(i2c5, "s3c2440-i2c.5", "i2c5", "aclk100", 0xc950, 11, 0, 0, "i2c"),
+ GATE_DA(i2c6, "s3c2440-i2c.6", "i2c6", "aclk100", 0xc950, 12, 0, 0, "i2c"),
+ GATE_DA(i2c7, "s3c2440-i2c.7", "i2c7", "aclk100", 0xc950, 13, 0, 0, "i2c"),
+ GATE_DA(i2c_hdmi, "s3c2440-hdmiphy-i2c", "i2c-hdmi", "aclk100", 0xc950, 14, 0, 0, "i2c"),
+ GATE_DA(spi0, "exynos4210-spi.0", "spi0", "aclk100", 0xc950, 16, 0, 0, "spi"),
+ GATE_DA(spi1, "exynos4210-spi.1", "spi1", "aclk100", 0xc950, 17, 0, 0, "spi"),
+ GATE_DA(spi2, "exynos4210-spi.2", "spi2", "aclk100", 0xc950, 18, 0, 0, "spi"),
+ GATE_DA(i2s1, "samsung-i2s.1", "i2s1", "aclk100", 0xc950, 20, 0, 0, "iis"),
+ GATE_DA(i2s2, "samsung-i2s.2", "i2s2", "aclk100", 0xc950, 21, 0, 0, "iis"),
+ GATE_DA(pcm1, "samsung-pcm.1", "pcm1", "aclk100", 0xc950, 22, 0, 0, "pcm"),
+ GATE_DA(pcm2, "samsung-pcm.2", "pcm2", "aclk100", 0xc950, 23, 0, 0, "pcm"),
+ GATE_A(pwm, "pwm", "aclk100", 0xc950, 24, 0, 0, "timers"),
+ GATE(slimbus, "slimbus", "aclk100", 0xc950, 25, 0, 0),
+ GATE_DA(spdif, "samsung-spdif", "spdif", "aclk100", 0xc950, 26, 0, 0, "spdif"),
+ GATE_DA(ac97, "samsung-ac97", "ac97", "aclk100", 0xc950, 27, 0, 0, "ac97"),
+};
+
+/* list of gate clocks supported in exynos4210 soc */
+struct samsung_gate_clock exynos4210_gate_clks[] = {
+ GATE_DA(sclk_fimd1, "exynos4-fb.1", "sclk_fimd1", "div_fimd1",
+ 0xc338, 0, CLK_SET_RATE_PARENT, 0, "sclk_fimd"),
+ GATE(sclk_mipi1, "sclk_mipi1", "div_mipi_pre1", 0xc338, 12, CLK_SET_RATE_PARENT, 0),
+ GATE(sclk_sata, "sclk_sata", "div_sata", 0xc340, 24, CLK_SET_RATE_PARENT, 0),
+ GATE(sclk_cam0, "sclk_cam0", "div_cam0", 0xc820, 4, CLK_SET_RATE_PARENT, 0),
+ GATE(sclk_cam1, "sclk_cam1", "div_cam1", 0xc820, 5, CLK_SET_RATE_PARENT, 0),
+ GATE(tvenc, "tvenc", "aclk160", 0xc924, 2, 0, 0),
+ GATE(g2d, "g2d", "aclk200", 0xc930, 0, 0, 0),
+ GATE(rotator, "rotator", "aclk200", 0xc930, 1, 0, 0),
+ GATE(mdma, "mdma", "aclk200", 0xc930, 2, 0, 0),
+ GATE(smmu_g2d, "smmu_g2d", "aclk200", 0xc930, 3, 0, 0),
+ GATE(smmu_rotator, "smmu_rotator", "aclk200", 0xc930, 4, 0, 0),
+ GATE(smmu_mdma, "smmu_mdma", "aclk200", 0xc930, 5, 0, 0),
+ GATE(pcie_phy, "pcie_phy", "aclk133", 0xc940, 2, 0, 0),
+ GATE(sata_phy, "sata_phy", "aclk133", 0xc940, 3, 0, 0),
+ GATE(sata, "sata", "aclk133", 0xc940, 10, 0, 0),
+ GATE(pcie, "pcie", "aclk133", 0xc940, 14, 0, 0),
+ GATE(smmu_pcie, "smmu_pcie", "aclk133", 0xc940, 18, 0, 0),
+ GATE_A(tsadc, "tsadc", "aclk100", 0xc950, 15, 0, 0, "adc"),
+ GATE(modemif, "modemif", "aclk100", 0xc950, 28, 0, 0),
+ GATE(chipid, "chipid", "aclk100", 0xc960, 0, 0, 0),
+ GATE(sysreg, "sysreg", "aclk100", 0xc960, 0, 0, 0),
+ GATE(hdmi_cec, "hdmi_cec", "aclk100", 0xc960, 11, 0, 0),
+ GATE_A(mct, "mct", "aclk100", 0xc960, 13, 0, 0, "mct"),
+ GATE_A(wdt, "watchdog", "aclk100", 0xc960, 14, 0, 0, "watchdog"),
+ GATE_A(rtc, "rtc", "aclk100", 0xc960, 15, 0, 0, "rtc"),
+ GATE_A(keyif, "keyif", "aclk100", 0xc960, 16, 0, 0, "keypad"),
+};
+
+/* list of gate clocks supported in exynos4x12 soc */
+struct samsung_gate_clock exynos4x12_gate_clks[] = {
+ GATE(sclk_mdnie0, "sclk_mdnie0", "div_mdnie0", 0xc334, 4, CLK_SET_RATE_PARENT, 0),
+ GATE(sclk_mdnie_pwm0, "sclk_mdnie_pwm0", "div_mdnie_pwm_pre0",
+ 0xc334, 8, CLK_SET_RATE_PARENT, 0),
+ GATE(sclk_mipihsi, "sclk_mipihsi", "div_mipihsi", 0xc340, 24, CLK_SET_RATE_PARENT, 0),
+ GATE(audss, "audss", "sclk_epll", 0xc93c, 0, 0, 0),
+ GATE(mdnie0, "mdnie0", "aclk160", 0xc934, 2, 0, 0),
+ GATE_DA(pcm0, "samsung-pcm.0", "pcm0", "aclk100", 0xc93c, 2, 0, 0, "pcm"),
+ GATE_DA(i2s0, "samsung-i2s.0", "i2s0", "aclk100", 0xc93c, 3, 0, 0, "iis"),
+ GATE(mipi_hsi, "mipi_hsi", "aclk133", 0xc940, 10, 0, 0),
+ GATE(chipid, "chipid", "aclk100", 0x8960, 0, 0, 0),
+ GATE(sysreg, "sysreg", "aclk100", 0x8960, 1, 0, 0),
+ GATE(hdmi_cec, "hdmi_cec", "aclk100", 0x8960, 11, 0, 0),
+ GATE_A(mct, "mct", "aclk100", 0x8960, 13, 0, 0, "mct"),
+ GATE_A(wdt, "watchdog", "aclk100", 0x8960, 14, 0, 0, "watchdog"),
+ GATE_A(rtc, "rtc", "aclk100", 0x8960, 15, 0, 0, "rtc"),
+ GATE_A(keyif, "keyif", "aclk100", 0x8960, 16, 0, 0, "keypad"),
+ GATE(rotator, "rotator", "aclk200", 0x4930, 1, 0, 0),
+ GATE(mdma2, "mdma2", "aclk200", 0x4930, 2, 0, 0),
+ GATE(smmu_rotator, "smmu_rotator", "aclk200", 0x4930, 4, 0, 0),
+ GATE(smmu_mdma, "smmu_mdma", "aclk200", 0x4930, 5, 0, 0),
+};
+
+static struct of_device_id exynos4_clk_ids[] = {
+ { .compatible = "samsung,exynos4210-clock",
+ .data = (void *)EXYNOS4210, },
+ { .compatible = "samsung,exynos4412-clock",
+ .data = (void *)EXYNOS4X12, },
+ { },
+};
+
+/*
+ * The parent of the fin_pll clock is selected by the XOM[0] bit. This bit
+ * resides in chipid register space, outside of the clock controller memory
+ * mapped space. So to determine the parent of fin_pll clock, the chipid
+ * controller is first remapped and the value of XOM[0] bit is read to
+ * determine the parent clock.
+ */
+static void __init exynos4_clk_register_finpll(void)
+{
+ struct samsung_fixed_rate_clock fclk;
+ struct device_node *np;
+ struct clk *clk;
+ void __iomem *chipid_base = S5P_VA_CHIPID;
+ unsigned long xom, finpll_f = 24000000;
+ char *parent_name;
+
+ np = of_find_compatible_node(NULL, NULL, "samsung,exynos4210-chipid");
+ if (np)
+ chipid_base = of_iomap(np, 0);
+
+ if (chipid_base) {
+ xom = readl(chipid_base + 8);
+ parent_name = xom & 1 ? "xusbxti" : "xxti";
+ clk = clk_get(NULL, parent_name);
+ if (IS_ERR(clk)) {
+ pr_err("%s: failed to lookup parent clock %s, assuming "
+ "fin_pll clock frequency is 24MHz\n", __func__,
+ parent_name);
+ } else {
+ finpll_f = clk_get_rate(clk);
+ }
+ } else {
+ pr_err("%s: failed to map chipid registers, assuming "
+ "fin_pll clock frequency is 24MHz\n", __func__);
+ }
+
+ fclk.id = fin_pll;
+ fclk.name = "fin_pll";
+ fclk.parent_name = NULL;
+ fclk.flags = CLK_IS_ROOT;
+ fclk.fixed_rate = finpll_f;
+ samsung_clk_register_fixed_rate(&fclk, 1);
+
+ if (np)
+ iounmap(chipid_base);
+}
+
+/*
+ * This function allows non-dt platforms to specify the clock speed of the
+ * xxti and xusbxti clocks. These clocks are then registered with the specified
+ * clock speed.
+ */
+void __init exynos4_clk_register_fixed_ext(unsigned long xxti_f,
+ unsigned long xusbxti_f)
+{
+ exynos4_fixed_rate_ext_clks[0].fixed_rate = xxti_f;
+ exynos4_fixed_rate_ext_clks[1].fixed_rate = xusbxti_f;
+ samsung_clk_register_fixed_rate(exynos4_fixed_rate_ext_clks,
+ ARRAY_SIZE(exynos4_fixed_rate_ext_clks));
+}
+
+/*
+ * For device tree based platforms, obtain the clock speed of the xxti and
+ * xusbxti clock from device tree and register them.
+ */
+static void __init exynos4_clk_of_register_fixed_ext(void)
+{
+ struct device_node *np;
+ unsigned long xxti_f = 0, xusbxti_f = 0;
+ u32 freq;
+
+ for_each_compatible_node(np, NULL, "fixed-clock") {
+ if (of_property_read_u32(np, "clock-frequency", &freq))
+ continue;
+ if (of_device_is_compatible(np, "samsung,clock-xxti"))
+ xxti_f = freq;
+ else if (of_device_is_compatible(np, "samsung,clock-xusbxti"))
+ xusbxti_f = freq;
+ }
+ exynos4_clk_register_fixed_ext(xxti_f, xusbxti_f);
+}
+
+/* register exynos4 clocks */
+void __init exynos4_clk_init(void)
+{
+ void __iomem *reg_base;
+ struct device_node *np;
+ struct clk *apll, *mpll, *epll, *vpll;
+ u32 exynos4_soc;
+
+ np = of_find_matching_node(NULL, exynos4_clk_ids);
+ if (np) {
+ const struct of_device_id *match;
+ match = of_match_node(exynos4_clk_ids, np);
+ exynos4_soc = (u32)match->data;
+
+ reg_base = of_iomap(np, 0);
+ if (!reg_base)
+ panic("%s: failed to map registers\n", __func__);
+ } else {
+ reg_base = S5P_VA_CMU;
+ if (soc_is_exynos4210())
+ exynos4_soc = EXYNOS4210;
+ else if (soc_is_exynos4212() || soc_is_exynos4412())
+ exynos4_soc = EXYNOS4X12;
+ else
+ panic("%s: unable to determine soc\n", __func__);
+ }
+
+ samsung_clk_init(np, reg_base, nr_clks);
+ if (np)
+ exynos4_clk_of_register_fixed_ext();
+ exynos4_clk_register_finpll();
+
+ if (exynos4_soc == EXYNOS4210) {
+ apll = samsung_clk_register_pll45xx("fout_apll", "fin_pll",
+ reg_base + 0x14100, pll_4508);
+ mpll = samsung_clk_register_pll45xx("fout_mpll", "fin_pll",
+ reg_base + 0x14108, pll_4508);
+ epll = samsung_clk_register_pll46xx("fout_epll", "fin_pll",
+ reg_base + 0xc110, pll_4600);
+ vpll = samsung_clk_register_pll46xx("fout_vpll", "mout_vpllsrc",
+ reg_base + 0xc120, pll_4650c);
+ } else {
+ apll = samsung_clk_register_pll35xx("fout_apll", "fin_pll",
+ reg_base + 0x14100);
+ mpll = samsung_clk_register_pll35xx("fout_mpll", "fin_pll",
+ reg_base + 0x10108);
+ epll = samsung_clk_register_pll36xx("fout_epll", "fin_pll",
+ reg_base + 0xc110);
+ vpll = samsung_clk_register_pll36xx("fout_vpll", "fin_pll",
+ reg_base + 0xc120);
+ }
+
+ samsung_clk_add_lookup(apll, fout_apll);
+ samsung_clk_add_lookup(mpll, fout_mpll);
+ samsung_clk_add_lookup(epll, fout_epll);
+ samsung_clk_add_lookup(vpll, fout_vpll);
+
+ samsung_clk_register_fixed_rate(exynos4_fixed_rate_clks,
+ ARRAY_SIZE(exynos4_fixed_rate_clks));
+ samsung_clk_register_mux(exynos4_mux_clks,
+ ARRAY_SIZE(exynos4_mux_clks));
+ samsung_clk_register_div(exynos4_div_clks,
+ ARRAY_SIZE(exynos4_div_clks));
+ samsung_clk_register_gate(exynos4_gate_clks,
+ ARRAY_SIZE(exynos4_gate_clks));
+
+ if (exynos4_soc == EXYNOS4210) {
+ samsung_clk_register_fixed_rate(exynos4210_fixed_rate_clks,
+ ARRAY_SIZE(exynos4210_fixed_rate_clks));
+ samsung_clk_register_mux(exynos4210_mux_clks,
+ ARRAY_SIZE(exynos4210_mux_clks));
+ samsung_clk_register_div(exynos4210_div_clks,
+ ARRAY_SIZE(exynos4210_div_clks));
+ samsung_clk_register_gate(exynos4210_gate_clks,
+ ARRAY_SIZE(exynos4210_gate_clks));
+ } else {
+ samsung_clk_register_mux(exynos4x12_mux_clks,
+ ARRAY_SIZE(exynos4x12_mux_clks));
+ samsung_clk_register_div(exynos4x12_div_clks,
+ ARRAY_SIZE(exynos4x12_div_clks));
+ samsung_clk_register_gate(exynos4x12_gate_clks,
+ ARRAY_SIZE(exynos4x12_gate_clks));
+ }
+
+ pr_info("%s clocks: sclk_apll = %ld, sclk_mpll = %ld\n"
+ "\tsclk_epll = %ld, sclk_vpll = %ld, arm_clk = %ld\n",
+ exynos4_soc == EXYNOS4210 ? "Exynos4210" : "Exynos4x12",
+ _get_rate("sclk_apll"), _get_rate("sclk_mpll"),
+ _get_rate("sclk_epll"), _get_rate("sclk_vpll"),
+ _get_rate("arm_clk"));
+}
--
1.7.4.4
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