sunxi: refresh clock framework

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu> SVN-Revision: 39186
11 years ago · 6b61e7786c
parent 2e02c2da18
commit 6b61e7786c
16 changed files with 1367 additions and 0 deletions
--- a/target/linux/sunxi/patches-3.12/100-1-clk-sunxi_register_factors.patch
+++ b/target/linux/sunxi/patches-3.12/100-1-clk-sunxi_register_factors.patch
--- a/target/linux/sunxi/patches-3.12/100-2-fix-off-by-one-masks.patch
+++ b/target/linux/sunxi/patches-3.12/100-2-fix-off-by-one-masks.patch
@ -0,0 +1,33 @@
+From 04609953e11377c0705b0aba5c25ebdcbb9e4aa7 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
+Date: Thu, 5 Sep 2013 19:47:20 -0300
+Subject: [PATCH] clk: sunxi: factors: fix off-by-one masks
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The previous code would generate one bit too long masks, and was
+needlessly complicated. This patch replaces it by simpler code that can
+generate the masks correctly.
+
+Signed-off-by: Emilio López <emilio@elopez.com.ar>
+---
+ drivers/clk/sunxi/clk-factors.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/clk/sunxi/clk-factors.c b/drivers/clk/sunxi/clk-factors.c
+index 88523f9..5687ac9 100644
+--- a/drivers/clk/sunxi/clk-factors.c
+++ b/drivers/clk/sunxi/clk-factors.c
+@@ -40,7 +40,7 @@ struct clk_factors {
+ 
+ #define to_clk_factors(_hw) container_of(_hw, struct clk_factors, hw)
+ 
+-#define SETMASK(len, pos)		(((-1U) >> (31-len))  << (pos))
+#define SETMASK(len, pos)		(((1U << (len)) - 1) << (pos))
+ #define CLRMASK(len, pos)		(~(SETMASK(len, pos)))
+ #define FACTOR_GET(bit, len, reg)	(((reg) & SETMASK(len, bit)) >> (bit))
+ 
+-- 
+1.8.5.1
+
--- a/target/linux/sunxi/patches-3.12/100-3-clk-factors-clear-vars.patch
+++ b/target/linux/sunxi/patches-3.12/100-3-clk-factors-clear-vars.patch
@ -0,0 +1,31 @@
+From 29aef2f23ca8c91bce0a356fd5f120404389125a Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
+Date: Thu, 5 Sep 2013 19:50:46 -0300
+Subject: [PATCH] clk: sunxi: factors: clear variables before using them
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Random bits may get into our factors if we don't clear n, k, m and p.
+
+Signed-off-by: Emilio López <emilio@elopez.com.ar>
+---
+ drivers/clk/sunxi/clk-factors.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/clk/sunxi/clk-factors.c b/drivers/clk/sunxi/clk-factors.c
+index 5687ac9..f05207a 100644
+--- a/drivers/clk/sunxi/clk-factors.c
+++ b/drivers/clk/sunxi/clk-factors.c
+@@ -88,7 +88,7 @@ static long clk_factors_round_rate(struct clk_hw *hw, unsigned long rate,
+ static int clk_factors_set_rate(struct clk_hw *hw, unsigned long rate,
+ 				unsigned long parent_rate)
+ {
+-	u8 n, k, m, p;
+	u8 n = 0, k = 0, m = 0, p = 0;
+ 	u32 reg;
+ 	struct clk_factors *factors = to_clk_factors(hw);
+ 	struct clk_factors_config *config = factors->config;
+-- 
+1.8.5.1
+
--- a/target/linux/sunxi/patches-3.12/106-dt-sun7i-add-mod0-clk.patch
+++ b/target/linux/sunxi/patches-3.12/106-dt-sun7i-add-mod0-clk.patch
@ -0,0 +1,136 @@
+From 8cf7164b32f2ce228b0c8116fd712484f67c65b5 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
+Date: Wed, 4 Sep 2013 21:28:49 -0300
+Subject: [PATCH] ARM: sun7i: dt: mod0 clocks
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This commit adds all the mod0 clocks available on A20 to its device
+tree. This list was created by looking at AW's code release.
+
+Signed-off-by: Emilio López <emilio@elopez.com.ar>
+Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
+---
+ arch/arm/boot/dts/sun7i-a20.dtsi | 105 +++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 105 insertions(+)
+
+diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
+index 0af287e..0596e82 100644
+--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
+@@ -174,6 +174,111 @@
+ 				"apb1_uart2", "apb1_uart3", "apb1_uart4",
+ 				"apb1_uart5", "apb1_uart6", "apb1_uart7";
+ 		};
+
+		nand: nand@01c20080 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20080 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ms: ms@01c20084 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20084 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		mmc0: mmc0@01c20088 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20088 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		mmc1: mmc1@01c2008c {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c2008c 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		mmc2: mmc2@01c20090 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20090 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		mmc3: mmc3@01c20094 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20094 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ts: ts@01c20098 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20098 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ss: ss@01c2009c {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c2009c 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		spi0: spi0@01c200a0 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200a0 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		spi1: spi1@01c200a4 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200a4 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		spi2: spi2@01c200a8 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200a8 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		pata: pata@01c200ac {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200ac 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ir0: ir0@01c200b0 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200b0 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ir1: ir1@01c200b4 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200b4 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		spi3: spi3@01c200d4 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200d4 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+ 	};
+ 
+ 	soc@01c00000 {
+-- 
+1.8.5.1
+
--- a/target/linux/sunxi/patches-3.12/107-dt-sun5i-add-mod0-clk.patch
+++ b/target/linux/sunxi/patches-3.12/107-dt-sun5i-add-mod0-clk.patch
@ -0,0 +1,198 @@
+From 0ae543fe8ae8b9ea7166c39b00e977506eccdf4b Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
+Date: Wed, 4 Sep 2013 21:21:16 -0300
+Subject: [PATCH] ARM: sun5i: dt: mod0 clocks
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This commit adds all the mod0 clocks available on A10 and A13. The list
+has been constructed by looking at the Allwinner code release for A10S
+and A13.
+
+Signed-off-by: Emilio López <emilio@elopez.com.ar>
+Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
+---
+ arch/arm/boot/dts/sun5i-a10s.dtsi | 77 +++++++++++++++++++++++++++++++++++++++
+ arch/arm/boot/dts/sun5i-a13.dtsi  | 77 +++++++++++++++++++++++++++++++++++++++
+ 2 files changed, 154 insertions(+)
+
+diff --git a/arch/arm/boot/dts/sun5i-a10s.dtsi b/arch/arm/boot/dts/sun5i-a10s.dtsi
+index 86e06e4..82b5ce6 100644
+--- a/arch/arm/boot/dts/sun5i-a10s.dtsi
+++ b/arch/arm/boot/dts/sun5i-a10s.dtsi
+@@ -173,6 +173,83 @@
+ 				"apb1_i2c2", "apb1_uart0", "apb1_uart1",
+ 				"apb1_uart2", "apb1_uart3";
+ 		};
+
+		nand: nand@01c20080 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20080 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ms: ms@01c20084 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20084 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		mmc0: mmc0@01c20088 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20088 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		mmc1: mmc1@01c2008c {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c2008c 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		mmc2: mmc2@01c20090 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20090 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ts: ts@01c20098 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20098 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ss: ss@01c2009c {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c2009c 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		spi0: spi0@01c200a0 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200a0 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		spi1: spi1@01c200a4 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200a4 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		spi2: spi2@01c200a8 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200a8 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ir0: ir0@01c200b0 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200b0 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+ 	};
+ 
+ 	soc@01c00000 {
+diff --git a/arch/arm/boot/dts/sun5i-a13.dtsi b/arch/arm/boot/dts/sun5i-a13.dtsi
+index cded3c7..938e6d3 100644
+--- a/arch/arm/boot/dts/sun5i-a13.dtsi
+++ b/arch/arm/boot/dts/sun5i-a13.dtsi
+@@ -170,6 +170,83 @@
+ 			clock-output-names = "apb1_i2c0", "apb1_i2c1",
+ 				"apb1_i2c2", "apb1_uart1", "apb1_uart3";
+ 		};
+
+		nand: nand@01c20080 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20080 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ms: ms@01c20084 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20084 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		mmc0: mmc0@01c20088 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20088 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		mmc1: mmc1@01c2008c {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c2008c 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		mmc2: mmc2@01c20090 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20090 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ts: ts@01c20098 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20098 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ss: ss@01c2009c {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c2009c 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		spi0: spi0@01c200a0 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200a0 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		spi1: spi1@01c200a4 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200a4 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		spi2: spi2@01c200a8 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200a8 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ir0: ir0@01c200b0 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200b0 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+ 	};
+ 
+ 	soc@01c00000 {
+-- 
+1.8.5.1
+
--- a/target/linux/sunxi/patches-3.12/108-dt-sun4i-add-mod0-clk.patch
+++ b/target/linux/sunxi/patches-3.12/108-dt-sun4i-add-mod0-clk.patch
@ -0,0 +1,135 @@
+From 5f554ea6757748c2fc45228030a20e08f6053ff7 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
+Date: Tue, 21 May 2013 21:28:32 -0300
+Subject: [PATCH] ARM: sun4i: dt: mod0 clocks
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This commit adds all the mod0 clocks present on sun4i to its device tree
+
+Signed-off-by: Emilio López <emilio@elopez.com.ar>
+Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
+---
+ arch/arm/boot/dts/sun4i-a10.dtsi | 105 +++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 105 insertions(+)
+
+diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
+index ebacb5d..2828427e 100644
+--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
+@@ -184,6 +184,111 @@
+ 				"apb1_uart4", "apb1_uart5", "apb1_uart6",
+ 				"apb1_uart7";
+ 		};
+
+		nand: nand@01c20080 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20080 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ms: ms@01c20084 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20084 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		mmc0: mmc0@01c20088 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20088 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		mmc1: mmc1@01c2008c {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c2008c 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		mmc2: mmc2@01c20090 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20090 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		mmc3: mmc3@01c20094 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20094 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ts: ts@01c20098 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c20098 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ss: ss@01c2009c {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c2009c 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		spi0: spi0@01c200a0 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200a0 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		spi1: spi1@01c200a4 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200a4 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		spi2: spi2@01c200a8 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200a8 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		pata: pata@01c200ac {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200ac 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ir0: ir0@01c200b0 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200b0 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		ir1: ir1@01c200b4 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200b4 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+
+		spi3: spi3@01c200d4 {
+			#clock-cells = <0>;
+			compatible = "allwinner,sun4i-mod0-clk";
+			reg = <0x01c200d4 0x4>;
+			clocks = <&osc24M>, <&pll6 1>, <&pll5 1>;
+		};
+ 	};
+ 
+ 	soc@01c00000 {
+-- 
+1.8.5.1
+
--- a/target/linux/sunxi/patches-3.12/109-mach-sunxi-add-clkprovider.patch
+++ b/target/linux/sunxi/patches-3.12/109-mach-sunxi-add-clkprovider.patch
@ -0,0 +1,11 @@
+diff -ruN old/arch/arm/mach-sunxi/sunxi.c new/arch/arm/mach-sunxi/sunxi.c
+--- old/arch/arm/mach-sunxi/sunxi.c	2014-01-04 01:57:31.000000000 +0100
+++ new/arch/arm/mach-sunxi/sunxi.c	2014-01-04 01:11:47.000000000 +0100
+@@ -10,6 +10,7 @@
+  * warranty of any kind, whether express or implied.
+  */
+ 
+#include <linux/clk-provider.h>
+ #include <linux/clocksource.h>
+ #include <linux/delay.h>
+ #include <linux/kernel.h>
--- a/target/linux/sunxi/patches-3.12/110-clk-sunxi-fix-pll5-6.patch
+++ b/target/linux/sunxi/patches-3.12/110-clk-sunxi-fix-pll5-6.patch
@ -0,0 +1,149 @@
+From 11e7ff129807394d87c937b880bb58972dc91fc0 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
+Date: Thu, 28 Nov 2013 09:00:47 -0300
+Subject: [PATCH] fixup! clk: sunxi: add PLL5 and PLL6 support
+
+---
+ drivers/clk/sunxi/clk-sunxi.c | 83 +++++++++++++++++++++++++++++++++++--------
+ 1 file changed, 69 insertions(+), 14 deletions(-)
+
+diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
+index d2b8d3c..3ce33b8 100644
+--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
+@@ -807,10 +807,11 @@ struct divs_data {
+ 		struct clk_div_table *table; /* is it a table based divisor? */
+ 		u8 shift; /* otherwise it's a normal divisor with this shift */
+ 		u8 pow;   /* is it power-of-two based? */
+		u8 gate;  /* is it independently gateable? */
+ 	} div[SUNXI_DIVS_MAX_QTY];
+ };
+ 
+-static struct clk_div_table pll6_sata_table[] = {
+static struct clk_div_table pll6_sata_tbl[] = {
+ 	{ .val = 0, .div = 6, },
+ 	{ .val = 1, .div = 12, },
+ 	{ .val = 2, .div = 18, },
+@@ -829,7 +830,7 @@ struct divs_data {
+ static const struct divs_data pll6_divs_data __initconst = {
+ 	.factors = &sun4i_pll5_data,
+ 	.div = {
+-		{ .shift = 0, .table = pll6_sata_table }, /* M, SATA */
+		{ .shift = 0, .table = pll6_sata_tbl, .gate = 14 }, /* M, SATA */
+ 		{ .fixed = 2 }, /* P, other */
+ 	}
+ };
+@@ -852,6 +853,11 @@ static void __init sunxi_divs_clk_setup(struct device_node *node,
+ 	const char *parent  = node->name;
+ 	const char *clk_name;
+ 	struct clk **clks, *pclk;
+	struct clk_hw *gate_hw, *rate_hw;
+	const struct clk_ops *rate_ops;
+	struct clk_gate *gate = NULL;
+	struct clk_fixed_factor *fix_factor;
+	struct clk_divider *divider;
+ 	void *reg;
+ 	int i = 0;
+ 	int flags, clkflags;
+@@ -866,10 +872,9 @@ static void __init sunxi_divs_clk_setup(struct device_node *node,
+ 		return;
+ 
+ 	clks = kzalloc(SUNXI_DIVS_MAX_QTY * sizeof(struct clk *), GFP_KERNEL);
+-	if (!clks) {
+-		kfree(clk_data);
+-		return;
+-	}
+	if (!clks)
+		goto free_clkdata;
+
+ 	clk_data->clks = clks;
+ 
+ 	/* It's not a good idea to have automatic reparenting changing
+@@ -881,19 +886,60 @@ static void __init sunxi_divs_clk_setup(struct device_node *node,
+ 						  i, &clk_name) != 0)
+ 			break;
+ 
+		gate_hw = NULL;
+		rate_hw = NULL;
+		rate_ops = NULL;
+
+		/* If this leaf clock can be gated, create a gate */
+		if (data->div[i].gate) {
+			gate = kzalloc(sizeof(*gate), GFP_KERNEL);
+			if (!gate)
+				goto free_clks;
+
+			gate->reg = reg;
+			gate->bit_idx = data->div[i].gate;
+			gate->lock = &clk_lock;
+
+			gate_hw = &gate->hw;
+		}
+
+		/* Leaves can be fixed or configurable divisors */
+ 		if (data->div[i].fixed) {
+-			clks[i] = clk_register_fixed_factor(NULL, clk_name,
+-						parent, clkflags,
+-						1, data->div[i].fixed);
+			fix_factor = kzalloc(sizeof(*fix_factor), GFP_KERNEL);
+			if (!fix_factor)
+				goto free_gate;
+
+			fix_factor->mult = 1;
+			fix_factor->div = data->div[i].fixed;
+
+			rate_hw = &fix_factor->hw;
+			rate_ops = &clk_fixed_factor_ops;
+ 		} else {
+			divider = kzalloc(sizeof(*divider), GFP_KERNEL);
+			if (!divider)
+				goto free_gate;
+
+ 			flags = data->div[i].pow ? CLK_DIVIDER_POWER_OF_TWO : 0;
+-			clks[i] = clk_register_divider_table(NULL, clk_name,
+-						parent, clkflags, reg,
+-						data->div[i].shift,
+-						SUNXI_DIVISOR_WIDTH, flags,
+-						data->div[i].table, &clk_lock);
+
+			divider->reg = reg;
+			divider->shift = data->div[i].shift;
+			divider->width = SUNXI_DIVISOR_WIDTH;
+			divider->flags = flags;
+			divider->lock = &clk_lock;
+			divider->table = data->div[i].table;
+
+			rate_hw = &divider->hw;
+			rate_ops = &clk_divider_ops;
+ 		}
+ 
+		/* Wrap the (potential) gate and the divisor on a composite
+		 * clock to unify them */
+		clks[i] = clk_register_composite(NULL, clk_name, &parent, 1,
+						 NULL, NULL,
+						 rate_hw, rate_ops,
+						 gate_hw, &clk_gate_ops,
+						 clkflags);
+
+ 		WARN_ON(IS_ERR(clk_data->clks[i]));
+ 		clk_register_clkdev(clks[i], clk_name, NULL);
+ 	}
+@@ -905,6 +951,15 @@ static void __init sunxi_divs_clk_setup(struct device_node *node,
+ 	clk_data->clk_num = i;
+ 
+ 	of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+
+	return;
+
+free_gate:
+	kfree(gate);
+free_clks:
+	kfree(clks);
+free_clkdata:
+	kfree(clk_data);
+ }
+ 
+ 
+-- 
+1.8.5.1
+
--- a/target/linux/sunxi/patches-3.12/111-clk-composite-determine-rate.patch
+++ b/target/linux/sunxi/patches-3.12/111-clk-composite-determine-rate.patch
@ -0,0 +1,74 @@
+From de7bfadd1022613ab2c7eeca124bb1e4a6f4c072 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
+Date: Thu, 5 Sep 2013 19:43:33 -0300
+Subject: [PATCH] clk: composite: .determine_rate support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This commit adds .determine_rate support to the composite clock. It will
+use the .determine_rate callback from the rate component if available,
+and fall back on the mux component otherwise. This allows composite
+clocks to enjoy the benefits of automatic clock reparenting.
+
+Signed-off-by: Emilio López <emilio@elopez.com.ar>
+---
+ drivers/clk/clk-composite.c | 28 ++++++++++++++++++++++++++++
+ 1 file changed, 28 insertions(+)
+
+diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c
+index a33f46f..753d0b7 100644
+--- a/drivers/clk/clk-composite.c
+++ b/drivers/clk/clk-composite.c
+@@ -55,6 +55,30 @@ static unsigned long clk_composite_recalc_rate(struct clk_hw *hw,
+ 	return rate_ops->recalc_rate(rate_hw, parent_rate);
+ }
+ 
+static long clk_composite_determine_rate(struct clk_hw *hw, unsigned long rate,
+					unsigned long *best_parent_rate,
+					struct clk **best_parent_p)
+{
+	struct clk_composite *composite = to_clk_composite(hw);
+	const struct clk_ops *rate_ops = composite->rate_ops;
+	const struct clk_ops *mux_ops = composite->mux_ops;
+	struct clk_hw *rate_hw = composite->rate_hw;
+	struct clk_hw *mux_hw = composite->mux_hw;
+
+	if (rate_hw && rate_ops && rate_ops->determine_rate) {
+		rate_hw->clk = hw->clk;
+		return rate_ops->determine_rate(rate_hw, rate, best_parent_rate,
+						best_parent_p);
+	} else if (mux_hw && mux_ops && mux_ops->determine_rate) {
+		mux_hw->clk = hw->clk;
+		return mux_ops->determine_rate(rate_hw, rate, best_parent_rate,
+					       best_parent_p);
+	} else {
+		pr_err("clk: clk_composite_determine_rate function called, but no mux or rate callback set!\n");
+		return 0;
+	}
+}
+
+ static long clk_composite_round_rate(struct clk_hw *hw, unsigned long rate,
+ 				  unsigned long *prate)
+ {
+@@ -147,6 +171,8 @@ struct clk *clk_register_composite(struct device *dev, const char *name,
+ 		composite->mux_ops = mux_ops;
+ 		clk_composite_ops->get_parent = clk_composite_get_parent;
+ 		clk_composite_ops->set_parent = clk_composite_set_parent;
+		if (mux_ops->determine_rate)
+			clk_composite_ops->determine_rate = clk_composite_determine_rate;
+ 	}
+ 
+ 	if (rate_hw && rate_ops) {
+@@ -170,6 +196,8 @@ struct clk *clk_register_composite(struct device *dev, const char *name,
+ 		composite->rate_hw = rate_hw;
+ 		composite->rate_ops = rate_ops;
+ 		clk_composite_ops->recalc_rate = clk_composite_recalc_rate;
+		if (rate_ops->determine_rate)
+			clk_composite_ops->determine_rate = clk_composite_determine_rate;
+ 	}
+ 
+ 	if (gate_hw && gate_ops) {
+-- 
+1.8.5.1
+
--- a/target/linux/sunxi/patches-3.12/112-clk-sunxi-automatic-reparenting.patch
+++ b/target/linux/sunxi/patches-3.12/112-clk-sunxi-automatic-reparenting.patch
@ -0,0 +1,73 @@
+From 679e8db359d0c1994e88f3a4a2aa0697ce001ad4 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
+Date: Thu, 5 Sep 2013 19:52:41 -0300
+Subject: [PATCH] clk: sunxi: factors: automatic reparenting support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This commit implements .determine_rate, so that our factor clocks can be
+reparented when needed.
+
+Signed-off-by: Emilio López <emilio@elopez.com.ar>
+---
+ drivers/clk/sunxi/clk-factors.c | 36 ++++++++++++++++++++++++++++++++++++
+ 1 file changed, 36 insertions(+)
+
+diff --git a/drivers/clk/sunxi/clk-factors.c b/drivers/clk/sunxi/clk-factors.c
+index 9e23264..3806d97 100644
+--- a/drivers/clk/sunxi/clk-factors.c
+++ b/drivers/clk/sunxi/clk-factors.c
+@@ -77,6 +77,41 @@ static long clk_factors_round_rate(struct clk_hw *hw, unsigned long rate,
+ 	return rate;
+ }
+ 
+static long clk_factors_determine_rate(struct clk_hw *hw, unsigned long rate,
+				       unsigned long *best_parent_rate,
+				       struct clk **best_parent_p)
+{
+	struct clk *clk = hw->clk, *parent, *best_parent = NULL;
+	int i, num_parents;
+	unsigned long parent_rate, best = 0, child_rate, best_child_rate = 0;
+
+	/* find the parent that can help provide the fastest rate <= rate */
+	num_parents = __clk_get_num_parents(clk);
+	for (i = 0; i < num_parents; i++) {
+		parent = clk_get_parent_by_index(clk, i);
+		if (!parent)
+			continue;
+		if (__clk_get_flags(clk) & CLK_SET_RATE_PARENT)
+			parent_rate = __clk_round_rate(parent, rate);
+		else
+			parent_rate = __clk_get_rate(parent);
+
+		child_rate = clk_factors_round_rate(hw, rate, &parent_rate);
+
+		if (child_rate <= rate && child_rate > best_child_rate) {
+			best_parent = parent;
+			best = parent_rate;
+			best_child_rate = child_rate;
+		}
+	}
+
+	if (best_parent)
+		*best_parent_p = best_parent;
+	*best_parent_rate = best;
+
+	return best_child_rate;
+}
+
+ static int clk_factors_set_rate(struct clk_hw *hw, unsigned long rate,
+ 				unsigned long parent_rate)
+ {
+@@ -113,6 +148,7 @@ static int clk_factors_set_rate(struct clk_hw *hw, unsigned long rate,
+ }
+ 
+ const struct clk_ops clk_factors_ops = {
+	.determine_rate = clk_factors_determine_rate,
+ 	.recalc_rate = clk_factors_recalc_rate,
+ 	.round_rate = clk_factors_round_rate,
+ 	.set_rate = clk_factors_set_rate,
+-- 
+1.8.5.1
+
--- a/target/linux/sunxi/patches-3.12/113-clk-sunxi-unify-apb1.patch
+++ b/target/linux/sunxi/patches-3.12/113-clk-sunxi-unify-apb1.patch
@ -0,0 +1,63 @@
+From 75d3fa72634a4943f0f03146916094b6f4908552 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
+Date: Sun, 8 Sep 2013 18:14:52 -0300
+Subject: [PATCH] clk: sunxi: unify APB1 clock
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This commit unifies the APB1 mux with the APB1 clock, using the new
+factors infrastructure.
+
+Signed-off-by: Emilio López <emilio@elopez.com.ar>
+---
+ Documentation/devicetree/bindings/clock/sunxi.txt | 1 -
+ drivers/clk/sunxi/clk-sunxi.c                     | 6 +-----
+ 2 files changed, 1 insertion(+), 6 deletions(-)
+
+diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt
+index 46d8433..e840cb2 100644
+--- a/Documentation/devicetree/bindings/clock/sunxi.txt
+++ b/Documentation/devicetree/bindings/clock/sunxi.txt
+@@ -27,7 +27,6 @@ Required properties:
+ 	"allwinner,sun5i-a10s-apb0-gates-clk" - for the APB0 gates on A10s
+ 	"allwinner,sun7i-a20-apb0-gates-clk" - for the APB0 gates on A20
+ 	"allwinner,sun4i-apb1-clk" - for the APB1 clock
+-	"allwinner,sun4i-apb1-mux-clk" - for the APB1 clock muxing
+ 	"allwinner,sun4i-apb1-gates-clk" - for the APB1 gates on A10
+ 	"allwinner,sun5i-a13-apb1-gates-clk" - for the APB1 gates on A13
+ 	"allwinner,sun5i-a10s-apb1-gates-clk" - for the APB1 gates on A10s
+diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
+index 06c4f01..0ecaa18 100644
+--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
+@@ -400,6 +400,7 @@ struct factors_data {
+ };
+ 
+ static const struct factors_data sun4i_apb1_data __initconst = {
+	.mux = 24,
+ 	.table = &sun4i_apb1_config,
+ 	.getter = sun4i_get_apb1_factors,
+ };
+@@ -511,10 +512,6 @@ struct mux_data {
+ 	.shift = 12,
+ };
+ 
+-static const struct mux_data sun4i_apb1_mux_data __initconst = {
+-	.shift = 24,
+-};
+-
+ static void __init sunxi_mux_clk_setup(struct device_node *node,
+ 				       struct mux_data *data)
+ {
+@@ -869,7 +866,6 @@ static void __init sunxi_divs_clk_setup(struct device_node *node,
+ /* Matches for mux clocks */
+ static const struct of_device_id clk_mux_match[] __initconst = {
+ 	{.compatible = "allwinner,sun4i-cpu-clk", .data = &sun4i_cpu_mux_data,},
+-	{.compatible = "allwinner,sun4i-apb1-mux-clk", .data = &sun4i_apb1_mux_data,},
+ 	{.compatible = "allwinner,sun6i-a31-ahb1-mux-clk", .data = &sun6i_a31_ahb1_mux_data,},
+ 	{}
+ };
+-- 
+1.8.5.1
+
--- a/target/linux/sunxi/patches-3.12/114-dt-unify-apb1.patch
+++ b/target/linux/sunxi/patches-3.12/114-dt-unify-apb1.patch
@ -0,0 +1,118 @@
+From f3443f6d43a69a520ae1e636d69a71c4a6bee21e Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
+Date: Sun, 8 Sep 2013 18:12:28 -0300
+Subject: [PATCH] ARM: sunxi: dt: unify APB1 clock
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+With the new factors infrastructure in place, we can unify apb1 and
+apb1_mux as a single clock now.
+
+Signed-off-by: Emilio López <emilio@elopez.com.ar>
+---
+ arch/arm/boot/dts/sun4i-a10.dtsi  | 9 +--------
+ arch/arm/boot/dts/sun5i-a10s.dtsi | 9 +--------
+ arch/arm/boot/dts/sun5i-a13.dtsi  | 9 +--------
+ arch/arm/boot/dts/sun7i-a20.dtsi  | 9 +--------
+ 4 files changed, 4 insertions(+), 32 deletions(-)
+
+diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
+index 2828427e..4dccdb0 100644
+--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
+@@ -158,18 +158,11 @@
+ 				"apb0_ir1", "apb0_keypad";
+ 		};
+ 
+-		apb1_mux: apb1_mux@01c20058 {
+-			#clock-cells = <0>;
+-			compatible = "allwinner,sun4i-apb1-mux-clk";
+-			reg = <0x01c20058 0x4>;
+-			clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
+-		};
+-
+ 		apb1: apb1@01c20058 {
+ 			#clock-cells = <0>;
+ 			compatible = "allwinner,sun4i-apb1-clk";
+ 			reg = <0x01c20058 0x4>;
+-			clocks = <&apb1_mux>;
+			clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
+ 		};
+ 
+ 		apb1_gates: apb1_gates@01c2006c {
+diff --git a/arch/arm/boot/dts/sun5i-a10s.dtsi b/arch/arm/boot/dts/sun5i-a10s.dtsi
+index 60bd3f7..9cb1b14 100644
+--- a/arch/arm/boot/dts/sun5i-a10s.dtsi
+++ b/arch/arm/boot/dts/sun5i-a10s.dtsi
+@@ -150,18 +150,11 @@
+ 				"apb0_ir", "apb0_keypad";
+ 		};
+ 
+-		apb1_mux: apb1_mux@01c20058 {
+-			#clock-cells = <0>;
+-			compatible = "allwinner,sun4i-apb1-mux-clk";
+-			reg = <0x01c20058 0x4>;
+-			clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
+-		};
+-
+ 		apb1: apb1@01c20058 {
+ 			#clock-cells = <0>;
+ 			compatible = "allwinner,sun4i-apb1-clk";
+ 			reg = <0x01c20058 0x4>;
+-			clocks = <&apb1_mux>;
+			clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
+ 		};
+ 
+ 		apb1_gates: apb1_gates@01c2006c {
+diff --git a/arch/arm/boot/dts/sun5i-a13.dtsi b/arch/arm/boot/dts/sun5i-a13.dtsi
+index 3e616a0..6b74dd0 100644
+--- a/arch/arm/boot/dts/sun5i-a13.dtsi
+++ b/arch/arm/boot/dts/sun5i-a13.dtsi
+@@ -148,18 +148,11 @@
+ 			clock-output-names = "apb0_codec", "apb0_pio", "apb0_ir";
+ 		};
+ 
+-		apb1_mux: apb1_mux@01c20058 {
+-			#clock-cells = <0>;
+-			compatible = "allwinner,sun4i-apb1-mux-clk";
+-			reg = <0x01c20058 0x4>;
+-			clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
+-		};
+-
+ 		apb1: apb1@01c20058 {
+ 			#clock-cells = <0>;
+ 			compatible = "allwinner,sun4i-apb1-clk";
+ 			reg = <0x01c20058 0x4>;
+-			clocks = <&apb1_mux>;
+			clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
+ 		};
+ 
+ 		apb1_gates: apb1_gates@01c2006c {
+diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
+index 0bf5d07..55d3e14 100644
+--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
+@@ -148,18 +148,11 @@
+ 				"apb0_iis2", "apb0_keypad";
+ 		};
+ 
+-		apb1_mux: apb1_mux@01c20058 {
+-			#clock-cells = <0>;
+-			compatible = "allwinner,sun4i-apb1-mux-clk";
+-			reg = <0x01c20058 0x4>;
+-			clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
+-		};
+-
+ 		apb1: apb1@01c20058 {
+ 			#clock-cells = <0>;
+ 			compatible = "allwinner,sun4i-apb1-clk";
+ 			reg = <0x01c20058 0x4>;
+-			clocks = <&apb1_mux>;
+			clocks = <&osc24M>, <&pll6 1>, <&osc32k>;
+ 		};
+ 
+ 		apb1_gates: apb1_gates@01c2006c {
+-- 
+1.8.5.1
+
--- a/target/linux/sunxi/patches-3.12/115-clk-sunxi-muxable-ahb-clock.patch
+++ b/target/linux/sunxi/patches-3.12/115-clk-sunxi-muxable-ahb-clock.patch
@ -0,0 +1,102 @@
+From 147a46beeb49c6baabb85126d570f330a2ba7cad Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
+Date: Sat, 14 Sep 2013 20:48:40 -0300
+Subject: [PATCH] clk: sunxi: Implement muxable AHB clock
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+sun5i and sun7i have a mux to change the AHB clock parent, this commit
+adds support for it on the driver.
+
+Signed-off-by: Emilio López <emilio@elopez.com.ar>
+---
+ Documentation/devicetree/bindings/clock/sunxi.txt |  1 +
+ drivers/clk/sunxi/clk-sunxi.c                     | 37 +++++++++++++++++++++++
+ 2 files changed, 38 insertions(+)
+
+diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt
+index e840cb2..941bd93 100644
+--- a/Documentation/devicetree/bindings/clock/sunxi.txt
+++ b/Documentation/devicetree/bindings/clock/sunxi.txt
+@@ -15,6 +15,7 @@ Required properties:
+ 	"allwinner,sun4i-axi-clk" - for the AXI clock
+ 	"allwinner,sun4i-axi-gates-clk" - for the AXI gates
+ 	"allwinner,sun4i-ahb-clk" - for the AHB clock
+	"allwinner,sun5i-a13-ahb-clk" - for the AHB clock on A13
+ 	"allwinner,sun4i-ahb-gates-clk" - for the AHB gates on A10
+ 	"allwinner,sun5i-a13-ahb-gates-clk" - for the AHB gates on A13
+ 	"allwinner,sun5i-a10s-ahb-gates-clk" - for the AHB gates on A10s
+diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
+index 0ecaa18..360d705 100644
+--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
+@@ -240,7 +240,32 @@ static void sun4i_get_pll5_factors(u32 *freq, u32 parent_rate,
+ 	*n = DIV_ROUND_UP(div, (*k+1));
+ }
+ 
+/**
+ * sun5i_get_ahb_factors() - calculates p factor for AHB
+ * AHB rate is calculated as follows
+ * rate = parent_rate >> p
+ */
+ 
+static void sun5i_a13_get_ahb_factors(u32 *freq, u32 parent_rate,
+				      u8 *n, u8 *k, u8 *m, u8 *p)
+{
+	u8 div;
+
+	/* This clock can only divide, so we will never achieve a higher
+	 * rate than the parent's */
+	if (*freq > parent_rate)
+		*freq = parent_rate;
+
+	/* Normalize value to a parent multiple */
+	div = *freq / parent_rate;
+	*freq = parent_rate * div;
+
+	/* we were called to round the frequency, we can now return */
+	if (n == NULL)
+		return;
+
+	*p = div;
+}
+ 
+ /**
+  * sun4i_get_apb1_factors() - calculates m, p factors for APB1
+@@ -366,6 +391,11 @@ struct factors_data {
+ 	.kwidth = 2,
+ };
+ 
+static struct clk_factors_config sun5i_a13_ahb_config = {
+	.pshift = 4,
+	.pwidth = 2,
+};
+
+ static struct clk_factors_config sun4i_apb1_config = {
+ 	.mshift = 0,
+ 	.mwidth = 5,
+@@ -399,6 +429,12 @@ struct factors_data {
+ 	.getter = sun4i_get_pll5_factors,
+ };
+ 
+static const struct factors_data sun5i_a13_ahb_data __initconst = {
+	.mux = 6,
+	.table = &sun5i_a13_ahb_config,
+	.getter = sun5i_a13_get_ahb_factors,
+};
+
+ static const struct factors_data sun4i_apb1_data __initconst = {
+ 	.mux = 24,
+ 	.table = &sun4i_apb1_config,
+@@ -842,6 +878,7 @@ static void __init sunxi_divs_clk_setup(struct device_node *node,
+ static const struct of_device_id clk_factors_match[] __initconst = {
+ 	{.compatible = "allwinner,sun4i-pll1-clk", .data = &sun4i_pll1_data,},
+ 	{.compatible = "allwinner,sun6i-a31-pll1-clk", .data = &sun6i_a31_pll1_data,},
+	{.compatible = "allwinner,sun5i-a13-ahb-clk", .data = &sun5i_a13_ahb_data,},
+ 	{.compatible = "allwinner,sun4i-apb1-clk", .data = &sun4i_apb1_data,},
+ 	{.compatible = "allwinner,sun4i-mod0-clk", .data = &sun4i_mod0_data,},
+ 	{}
+-- 
+1.8.5.1
+
--- a/target/linux/sunxi/patches-3.12/116-dt-update-ahb-clock.patch
+++ b/target/linux/sunxi/patches-3.12/116-dt-update-ahb-clock.patch
@ -0,0 +1,69 @@
+From 051f43def45e53d93b9998728e398a68c4948114 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
+Date: Sat, 14 Sep 2013 20:44:03 -0300
+Subject: [PATCH] ARM: sunxi: dt: Update AHB clock to be muxable on sun[57]i
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+sun5i and sun7i have a mux to select the parent clock for AHB. This
+commit implements the required changes on the device trees.
+
+Signed-off-by: Emilio López <emilio@elopez.com.ar>
+---
+ arch/arm/boot/dts/sun5i-a10s.dtsi | 4 ++--
+ arch/arm/boot/dts/sun5i-a13.dtsi  | 4 ++--
+ arch/arm/boot/dts/sun7i-a20.dtsi  | 4 ++--
+ 3 files changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/arch/arm/boot/dts/sun5i-a10s.dtsi b/arch/arm/boot/dts/sun5i-a10s.dtsi
+index 9cb1b14..83e183c 100644
+--- a/arch/arm/boot/dts/sun5i-a10s.dtsi
+++ b/arch/arm/boot/dts/sun5i-a10s.dtsi
+@@ -115,9 +115,9 @@
+ 
+ 		ahb: ahb@01c20054 {
+ 			#clock-cells = <0>;
+-			compatible = "allwinner,sun4i-ahb-clk";
+			compatible = "allwinner,sun5i-a13-ahb-clk";
+ 			reg = <0x01c20054 0x4>;
+-			clocks = <&axi>;
+			clocks = <&axi>, <&cpu>, <&pll6 1>;
+ 		};
+ 
+ 		ahb_gates: ahb_gates@01c20060 {
+diff --git a/arch/arm/boot/dts/sun5i-a13.dtsi b/arch/arm/boot/dts/sun5i-a13.dtsi
+index 6b74dd0..0bb4300 100644
+--- a/arch/arm/boot/dts/sun5i-a13.dtsi
+++ b/arch/arm/boot/dts/sun5i-a13.dtsi
+@@ -115,9 +115,9 @@
+ 
+ 		ahb: ahb@01c20054 {
+ 			#clock-cells = <0>;
+-			compatible = "allwinner,sun4i-ahb-clk";
+			compatible = "allwinner,sun5i-a13-ahb-clk";
+ 			reg = <0x01c20054 0x4>;
+-			clocks = <&axi>;
+			clocks = <&axi>, <&cpu>, <&pll6 1>;
+ 		};
+ 
+ 		ahb_gates: ahb_gates@01c20060 {
+diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
+index 55d3e14..63757c5 100644
+--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
+@@ -105,9 +105,9 @@
+ 
+ 		ahb: ahb@01c20054 {
+ 			#clock-cells = <0>;
+-			compatible = "allwinner,sun4i-ahb-clk";
+			compatible = "allwinner,sun5i-a13-ahb-clk";
+ 			reg = <0x01c20054 0x4>;
+-			clocks = <&axi>;
+			clocks = <&axi>, <&pll6 1>, <&pll6 2>;
+ 		};
+ 
+ 		ahb_gates: ahb_gates@01c20060 {
+-- 
+1.8.5.1
+
--- a/target/linux/sunxi/patches-3.12/117-clk-sunxi-declare-OF-provider.patch
+++ b/target/linux/sunxi/patches-3.12/117-clk-sunxi-declare-OF-provider.patch
@ -0,0 +1,108 @@
+From be0804513a506de96925f9ed1aa8dc1facd4c180 Mon Sep 17 00:00:00 2001
+From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
+Date: Fri, 6 Sep 2013 14:59:57 +0200
+Subject: [PATCH] clk: sunxi: declare OF clock provider
+
+Common clock framework allows to register clock providers to get called
+on of_clk_init() by using CLK_OF_DECLARE. This converts sunxi clock
+providers to make use of it and get rid of the mach specific clk init
+call. As sunxi has a bunch of independent clk provider nodes, we hook
+current clock init to board compatible to make it called once.
+
+Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
+Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
+Acked-by: Mike Turquette <mturquette@linaro.org>
+---
+ arch/arm/mach-sunxi/sunxi.c   |  4 +---
+ drivers/clk/sunxi/clk-sunxi.c | 11 ++++++-----
+ include/linux/clk/sunxi.h     | 22 ----------------------
+ 3 files changed, 7 insertions(+), 30 deletions(-)
+ delete mode 100644 include/linux/clk/sunxi.h
+
+diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c
+index e79fb34..e5a6975 100644
+--- a/arch/arm/mach-sunxi/sunxi.c
+++ b/arch/arm/mach-sunxi/sunxi.c
+@@ -20,8 +20,6 @@
+ #include <linux/io.h>
+ #include <linux/reboot.h>
+ 
+-#include <linux/clk/sunxi.h>
+-
+ #include <asm/mach/arch.h>
+ #include <asm/mach/map.h>
+ #include <asm/system_misc.h>
+@@ -118,7 +116,7 @@ static void sunxi_setup_restart(void)
+ 
+ static void __init sunxi_timer_init(void)
+ {
+-	sunxi_init_clocks();
+	of_clk_init(NULL);
+ 	clocksource_of_init();
+ }
+ 
+diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
+index 34ee69f..9bbd035 100644
+--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
+@@ -16,7 +16,6 @@
+ 
+ #include <linux/clk-provider.h>
+ #include <linux/clkdev.h>
+-#include <linux/clk/sunxi.h>
+ #include <linux/of.h>
+ #include <linux/of_address.h>
+ 
+@@ -617,11 +616,8 @@ static void __init of_sunxi_table_clock_setup(const struct of_device_id *clk_mat
+ 	}
+ }
+ 
+-void __init sunxi_init_clocks(void)
+static void __init sunxi_init_clocks(struct device_node *np)
+ {
+-	/* Register all the simple and basic clocks on DT */
+-	of_clk_init(NULL);
+-
+ 	/* Register factor clocks */
+ 	of_sunxi_table_clock_setup(clk_factors_match, sunxi_factors_clk_setup);
+ 
+@@ -634,3 +630,8 @@ void __init sunxi_init_clocks(void)
+ 	/* Register gate clocks */
+ 	of_sunxi_table_clock_setup(clk_gates_match, sunxi_gates_clk_setup);
+ }
+CLK_OF_DECLARE(sun4i_a10_clk_init, "allwinner,sun4i-a10", sunxi_init_clocks);
+CLK_OF_DECLARE(sun5i_a10s_clk_init, "allwinner,sun5i-a10s", sunxi_init_clocks);
+CLK_OF_DECLARE(sun5i_a13_clk_init, "allwinner,sun5i-a13", sunxi_init_clocks);
+CLK_OF_DECLARE(sun6i_a31_clk_init, "allwinner,sun6i-a31", sunxi_init_clocks);
+CLK_OF_DECLARE(sun7i_a20_clk_init, "allwinner,sun7i-a20", sunxi_init_clocks);
+diff --git a/include/linux/clk/sunxi.h b/include/linux/clk/sunxi.h
+deleted file mode 100644
+index e074fdd..0000000
+--- a/include/linux/clk/sunxi.h
+++ /dev/null
+@@ -1,22 +0,0 @@
+-/*
+- * Copyright 2012 Maxime Ripard
+- *
+- * Maxime Ripard <maxime.ripard@free-electrons.com>
+- *
+- * This program is free software; you can redistribute it and/or modify
+- * it under the terms of the GNU General Public License as published by
+- * the Free Software Foundation; either version 2 of the License, or
+- * (at your option) any later version.
+- *
+- * This program is distributed in the hope that it will be useful,
+- * but WITHOUT ANY WARRANTY; without even the implied warranty of
+- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+- * GNU General Public License for more details.
+- */
+-
+-#ifndef __LINUX_CLK_SUNXI_H_
+-#define __LINUX_CLK_SUNXI_H_
+-
+-void __init sunxi_init_clocks(void);
+-
+-#endif
+-- 
+1.8.5.1
+
--- a/target/linux/sunxi/patches-3.12/118-sunxi-clk-core-clock-protect.patch
+++ b/target/linux/sunxi/patches-3.12/118-sunxi-clk-core-clock-protect.patch
@ -0,0 +1,67 @@
+From d1bcc34ce6cb7601ce27f3090aee0e8a3e8076e3 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Emilio=20L=C3=B3pez?= <emilio@elopez.com.ar>
+Date: Sat, 14 Sep 2013 20:54:42 -0300
+Subject: [PATCH] clk: sunxi: protect core clocks from accidental shutdown
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Some important clocks may get disabled as a side effect of another clock
+being disabled, because they have no consumers. This patch implements a
+mechanism so those clocks can be claimed by the driver and therefore
+remain enabled at all times.
+
+Signed-off-by: Emilio López <emilio@elopez.com.ar>
+---
+ drivers/clk/sunxi/clk-sunxi.c | 28 ++++++++++++++++++++++++++++
+ 1 file changed, 28 insertions(+)
+
+diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
+index 9bbd035..8fc1375 100644
+--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
+@@ -616,6 +616,31 @@ static void __init of_sunxi_table_clock_setup(const struct of_device_id *clk_mat
+ 	}
+ }
+ 
+/**
+ * System clock protection
+ *
+ * By enabling these critical clocks, we prevent their accidental gating
+ * by the framework
+ */
+static void __init sunxi_clock_protect(void)
+{
+	struct clk *clk;
+
+	/* memory bus clock - sun5i+ */
+	clk = clk_get(NULL, "mbus");
+	if (!IS_ERR(clk)) {
+		clk_prepare_enable(clk);
+		clk_put(clk);
+	}
+
+	/* DDR clock - sun4i+ */
+	clk = clk_get(NULL, "pll5_ddr");
+	if (!IS_ERR(clk)) {
+		clk_prepare_enable(clk);
+		clk_put(clk);
+	}
+}
+
+ static void __init sunxi_init_clocks(struct device_node *np)
+ {
+ 	/* Register factor clocks */
+@@ -629,6 +654,9 @@ static void __init sunxi_init_clocks(struct device_node *np)
+ 
+ 	/* Register gate clocks */
+ 	of_sunxi_table_clock_setup(clk_gates_match, sunxi_gates_clk_setup);
+
+	/* Enable core system clocks */
+	sunxi_clock_protect();
+ }
+ CLK_OF_DECLARE(sun4i_a10_clk_init, "allwinner,sun4i-a10", sunxi_init_clocks);
+ CLK_OF_DECLARE(sun5i_a10s_clk_init, "allwinner,sun5i-a10s", sunxi_init_clocks);
+-- 
+1.8.5.1
+