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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/Documentation/devicetree/bindings/clock/rockchip.txt
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
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+Device Tree Clock bindings for arch-rockchip
+
+This binding uses the common clock binding[1].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+== Gate clocks ==
+
+These bindings are deprecated!
+Please use the soc specific CRU bindings instead.
+
+The gate registers form a continuos block which makes the dt node
+structure a matter of taste, as either all gates can be put into
+one gate clock spanning all registers or they can be divided into
+the 10 individual gates containing 16 clocks each.
+The code supports both approaches.
+
+Required properties:
+- compatible : "rockchip,rk2928-gate-clk"
+- reg : shall be the control register address(es) for the clock.
+- #clock-cells : from common clock binding; shall be set to 1
+- clock-output-names : the corresponding gate names that the clock controls
+- clocks : should contain the parent clock for each individual gate,
+ therefore the number of clocks elements should match the number of
+ clock-output-names
+
+Example using multiple gate clocks:
+
+ clk_gates0: gate-clk@200000d0 {
+ compatible = "rockchip,rk2928-gate-clk";
+ reg = <0x200000d0 0x4>;
+ clocks = <&dummy>, <&dummy>,
+ <&dummy>, <&dummy>,
+ <&dummy>, <&dummy>,
+ <&dummy>, <&dummy>,
+ <&dummy>, <&dummy>,
+ <&dummy>, <&dummy>,
+ <&dummy>, <&dummy>,
+ <&dummy>, <&dummy>;
+
+ clock-output-names =
+ "gate_core_periph", "gate_cpu_gpll",
+ "gate_ddrphy", "gate_aclk_cpu",
+ "gate_hclk_cpu", "gate_pclk_cpu",
+ "gate_atclk_cpu", "gate_i2s0",
+ "gate_i2s0_frac", "gate_i2s1",
+ "gate_i2s1_frac", "gate_i2s2",
+ "gate_i2s2_frac", "gate_spdif",
+ "gate_spdif_frac", "gate_testclk";
+
+ #clock-cells = <1>;
+ };
+
+ clk_gates1: gate-clk@200000d4 {
+ compatible = "rockchip,rk2928-gate-clk";
+ reg = <0x200000d4 0x4>;
+ clocks = <&xin24m>, <&xin24m>,
+ <&xin24m>, <&dummy>,
+ <&dummy>, <&xin24m>,
+ <&xin24m>, <&dummy>,
+ <&xin24m>, <&dummy>,
+ <&xin24m>, <&dummy>,
+ <&xin24m>, <&dummy>,
+ <&xin24m>, <&dummy>;
+
+ clock-output-names =
+ "gate_timer0", "gate_timer1",
+ "gate_timer2", "gate_jtag",
+ "gate_aclk_lcdc1_src", "gate_otgphy0",
+ "gate_otgphy1", "gate_ddr_gpll",
+ "gate_uart0", "gate_frac_uart0",
+ "gate_uart1", "gate_frac_uart1",
+ "gate_uart2", "gate_frac_uart2",
+ "gate_uart3", "gate_frac_uart3";
+
+ #clock-cells = <1>;
+ };