ARM: dts: exynos3250: Add busfreq's dt data to support DVFS of memory interface and bus

This patch add Exynos3250 busfreq's dt data to support DVFS(Dynamic Voltage
Frequency Scaling) of memory interface and bus. Exynos3250'busfreq driver would
use following PPMU list:
- PPMU_DMC0
- PPMU_DMC1
- PPMU_LEFT
- PPMU_RIGHT

Change-Id: Id22b34c1631e548af938a111310da5542322fd12
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
index 2448eea..76e1f21 100644 (file)
--- a/arch/arm/boot/dts/exynos3250.dtsi
+++ b/arch/arm/boot/dts/exynos3250.dtsi
@@ -138,6 +138,22 @@
                        reg = <0x10000000 0x100>;
                };
 
+               busfreq_mif: busfreq@106A0000 {
+                       compatible = "samsung,exynos3250-busfreq-mif";
+                       reg = <0x106A0000 0x2000>, <0x106B0000 0x2000>;
+                       regs-name = "PPMU_DMC0", "PPMU_DMC1";
+                       status = "disabled";
+               };
+
+               busfreq_int: busfreq@0x116A0000 {
+                       compatible = "samsung,exynos3250-busfreq-int";
+                       reg = <0x116A0000 0x2000>, <0x112A0000 0x2000>;
+                       regs-name = "PPMU_LEFT", "PPMU_RIGHT";
+                       clocks = <&cmu CLK_PPMULEFT>, <&cmu CLK_PPMURIGHT>;
+                       clock-names = "ppmuleft", "ppmuright";
+                       status = "disabled";
+               };
+
                sys_reg: syscon@10010000 {
                        compatible = "samsung,exynos3-sysreg", "syscon";
                        reg = <0x10010000 0x400>;