[POWERPC] QE: get rid of most device_types and model

Now we're searching for "fsl,qe", "fsl,qe-muram", "fsl,qe-muram-data"
and "fsl,qe-ic".

Unfortunately it's still impossible to remove device_type = "qe"
from the existing device trees because older u-boots are looking for it.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

Documentation/powerpc/booting-without-of.txt

@@ -1543,7 +1543,7 @@ platforms are moved over to use the flattened-device-tree model.
    i) Root QE device
 
    Required properties:
-   - device_type : should be "qe";
+   - compatible : should be "fsl,qe";
    - model : precise model of the QE, Can be "QE", "CPM", or "CPM2"
    - reg : offset and length of the device registers.
    - bus-frequency : the clock frequency for QUICC Engine.
@@ -1557,8 +1557,7 @@ platforms are moved over to use the flattened-device-tree model.
 		#address-cells = <1>;
 		#size-cells = <1>;
 		#interrupt-cells = <2>;
-		device_type = "qe";
-		model = "QE";
+		compatible = "fsl,qe";
 		ranges = <0 e0100000 00100000>;
 		reg = <e0100000 480>;
 		brg-frequency = <0>;
@@ -1781,7 +1780,7 @@ platforms are moved over to use the flattened-device-tree model.
    vii) Multi-User RAM (MURAM)
 
    Required properties:
-   - device_type : should be "muram".
+   - compatible : should be "fsl,qe-muram", "fsl,cpm-muram".
    - mode : the could be "host" or "slave".
    - ranges : Should be defined as specified in 1) to describe the
       translation of MURAM addresses.
@@ -1791,10 +1790,12 @@ platforms are moved over to use the flattened-device-tree model.
    Example:
 
 	muram@10000 {
-		device_type = "muram";
+		compatible = "fsl,qe-muram", "fsl,cpm-muram";
 		ranges = <0 00010000 0000c000>;
 
 		data-only@0{
+			compatible = "fsl,qe-muram-data",
+				     "fsl,cpm-muram-data";
 			reg = <0 c000>;
 		};
 	};

arch/powerpc/boot/dts/mpc832x_mds.dts

@@ -206,17 +206,18 @@
 		#size-cells = <1>;
 		device_type = "qe";
 		compatible = "fsl,qe";
-		model = "QE";
 		ranges = <0 e0100000 00100000>;
 		reg = <e0100000 480>;
 		brg-frequency = <0>;
 		bus-frequency = <BCD3D80>;
 
 		muram@10000 {
-			device_type = "muram";
+			compatible = "fsl,qe-muram", "fsl,cpm-muram";
 			ranges = <0 00010000 00004000>;
 
 			data-only@0 {
+				compatible = "fsl,qe-muram-data",
+					     "fsl,cpm-muram-data";
 				reg = <0 4000>;
 			};
 		};
@@ -320,9 +321,9 @@
 			};
 		};
 
-		qeic: qeic@80 {
+		qeic: interrupt-controller@80 {
 			interrupt-controller;
-			device_type = "qeic";
+			compatible = "fsl,qe-ic";
 			#address-cells = <0>;
 			#interrupt-cells = <1>;
 			reg = <80 80>;

arch/powerpc/boot/dts/mpc832x_rdb.dts

@@ -166,17 +166,19 @@
 		#address-cells = <1>;
 		#size-cells = <1>;
 		device_type = "qe";
-		model = "QE";
+		compatible = "fsl,qe";
 		ranges = <0 e0100000 00100000>;
 		reg = <e0100000 480>;
 		brg-frequency = <0>;
 		bus-frequency = <BCD3D80>;
 
 		muram@10000 {
-			device_type = "muram";
+			compatible = "fsl,qe-muram", "fsl,cpm-muram";
 			ranges = <0 00010000 00004000>;
 
 			data-only@0 {
+				compatible = "fsl,qe-muram-data",
+					     "fsl,cpm-muram-data";
 				reg = <0 4000>;
 			};
 		};
@@ -252,9 +254,9 @@
 			};
 		};
 
-		qeic:qeic@80 {
+		qeic:interrupt-controller@80 {
 			interrupt-controller;
-			device_type = "qeic";
+			compatible = "fsl,qe-ic";
 			#address-cells = <0>;
 			#interrupt-cells = <1>;
 			reg = <80 80>;

arch/powerpc/boot/dts/mpc836x_mds.dts

@@ -207,17 +207,19 @@
 		#address-cells = <1>;
 		#size-cells = <1>;
 		device_type = "qe";
-		model = "QE";
+		compatible = "fsl,qe";
 		ranges = <0 e0100000 00100000>;
 		reg = <e0100000 480>;
 		brg-frequency = <0>;
 		bus-frequency = <179A7B00>;
 
 		muram@10000 {
-			device_type = "muram";
+			compatible = "fsl,qe-muram", "fsl,cpm-muram";
 			ranges = <0 00010000 0000c000>;
 
 			data-only@0{
+				compatible = "fsl,qe-muram-data",
+					     "fsl,cpm-muram-data";
 				reg = <0 c000>;
 			};
 		};
@@ -303,9 +305,9 @@
 			};
 		};
 
-		qeic: qeic@80 {
+		qeic: interrupt-controller@80 {
 			interrupt-controller;
-			device_type = "qeic";
+			compatible = "fsl,qe-ic";
 			#address-cells = <0>;
 			#interrupt-cells = <1>;
 			reg = <80 80>;

arch/powerpc/boot/dts/mpc8568mds.dts

@@ -284,17 +284,19 @@
 		#address-cells = <1>;
 		#size-cells = <1>;
 		device_type = "qe";
-		model = "QE";
+		compatible = "fsl,qe";
 		ranges = <0 e0080000 00040000>;
 		reg = <e0080000 480>;
 		brg-frequency = <0>;
 		bus-frequency = <179A7B00>;
 
 		muram@10000 {
-			device_type = "muram";
+			compatible = "fsl,qe-muram", "fsl,cpm-muram";
 			ranges = <0 00010000 0000c000>;
 
 			data-only@0{
+				compatible = "fsl,qe-muram-data",
+					     "fsl,cpm-muram-data";
 				reg = <0 c000>;
 			};
 		};
@@ -385,9 +387,9 @@
 			};
 		};
 
-		qeic: qeic@80 {
+		qeic: interrupt-controller@80 {
 			interrupt-controller;
-			device_type = "qeic";
+			compatible = "fsl,qe-ic";
 			#address-cells = <0>;
 			#interrupt-cells = <1>;
 			reg = <80 80>;

arch/powerpc/platforms/83xx/mpc832x_mds.c

@@ -105,6 +105,7 @@ static struct of_device_id mpc832x_ids[] = {
 	{ .type = "soc", },
 	{ .compatible = "soc", },
 	{ .type = "qe", },
+	{ .compatible = "fsl,qe", },
 	{},
 };
 
@@ -134,10 +135,12 @@ static void __init mpc832x_sys_init_IRQ(void)
 	of_node_put(np);
 
 #ifdef CONFIG_QUICC_ENGINE
+	np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
+	if (!np) {
 		np = of_find_node_by_type(NULL, "qeic");
 		if (!np)
 			return;
-
+	}
 	qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic);
 	of_node_put(np);
 #endif				/* CONFIG_QUICC_ENGINE */

arch/powerpc/platforms/83xx/mpc832x_rdb.c

@@ -115,6 +115,7 @@ static struct of_device_id mpc832x_ids[] = {
 	{ .type = "soc", },
 	{ .compatible = "soc", },
 	{ .type = "qe", },
+	{ .compatible = "fsl,qe", },
 	{},
 };
 
@@ -145,10 +146,12 @@ void __init mpc832x_rdb_init_IRQ(void)
 	of_node_put(np);
 
 #ifdef CONFIG_QUICC_ENGINE
+	np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
+	if (!np) {
 		np = of_find_node_by_type(NULL, "qeic");
 		if (!np)
 			return;
-
+	}
 	qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic);
 	of_node_put(np);
 #endif				/* CONFIG_QUICC_ENGINE */

arch/powerpc/platforms/83xx/mpc836x_mds.c

@@ -136,6 +136,7 @@ static struct of_device_id mpc836x_ids[] = {
 	{ .type = "soc", },
 	{ .compatible = "soc", },
 	{ .type = "qe", },
+	{ .compatible = "fsl,qe", },
 	{},
 };
 
@@ -165,10 +166,12 @@ static void __init mpc836x_mds_init_IRQ(void)
 	of_node_put(np);
 
 #ifdef CONFIG_QUICC_ENGINE
+	np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
+	if (!np) {
 		np = of_find_node_by_type(NULL, "qeic");
 		if (!np)
 			return;
-
+	}
 	qe_ic_init(np, 0, qe_ic_cascade_low_ipic, qe_ic_cascade_high_ipic);
 	of_node_put(np);
 #endif				/* CONFIG_QUICC_ENGINE */

arch/powerpc/platforms/85xx/mpc85xx_mds.c

@@ -94,21 +94,25 @@ static void __init mpc85xx_mds_setup_arch(void)
 #endif
 
 #ifdef CONFIG_QUICC_ENGINE
-	if ((np = of_find_node_by_name(NULL, "qe")) != NULL) {
-		qe_reset();
-		of_node_put(np);
+	np = of_find_compatible_node(NULL, NULL, "fsl,qe");
+	if (!np) {
+		np = of_find_node_by_name(NULL, "qe");
+		if (!np)
+			return;
 	}
 
-	if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
-		struct device_node *ucc = NULL;
+	qe_reset();
+	of_node_put(np);
+
+	np = of_find_node_by_name(NULL, "par_io");
+	if (np) {
+		struct device_node *ucc;
 
 		par_io_init(np);
 		of_node_put(np);
 
-		for ( ;(ucc = of_find_node_by_name(ucc, "ucc")) != NULL;)
+		for_each_node_by_name(ucc, "ucc")
 			par_io_of_config(ucc);
-
-		of_node_put(ucc);
 	}
 
 	if (bcsr_regs) {
@@ -131,7 +135,6 @@ static void __init mpc85xx_mds_setup_arch(void)
 
 		iounmap(bcsr_regs);
 	}
-
 #endif	/* CONFIG_QUICC_ENGINE */
 }
 
@@ -139,6 +142,7 @@ static struct of_device_id mpc85xx_ids[] = {
 	{ .type = "soc", },
 	{ .compatible = "soc", },
 	{ .type = "qe", },
+	{ .compatible = "fsl,qe", },
 	{},
 };
 
@@ -176,10 +180,12 @@ static void __init mpc85xx_mds_pic_init(void)
 	mpic_init(mpic);
 
 #ifdef CONFIG_QUICC_ENGINE
+	np = of_find_compatible_node(NULL, NULL, "fsl,qe-ic");
+	if (!np) {
 		np = of_find_node_by_type(NULL, "qeic");
 		if (!np)
 			return;
-
+	}
 	qe_ic_init(np, 0, qe_ic_cascade_muxed_mpic, NULL);
 	of_node_put(np);
 #endif				/* CONFIG_QUICC_ENGINE */

arch/powerpc/sysdev/fsl_soc.c

@@ -1276,7 +1276,10 @@ int __init fsl_spi_init(struct spi_board_info *board_infos,
 	const u32 *sysclk;
 
 	/* SPI controller is either clocked from QE or SoC clock */
+	np = of_find_compatible_node(NULL, NULL, "fsl,qe");
+	if (!np)
 		np = of_find_node_by_type(NULL, "qe");
+
 	if (!np)
 		np = of_find_node_by_type(NULL, "soc");
 

arch/powerpc/sysdev/qe_lib/qe.c

@@ -65,17 +65,22 @@ static phys_addr_t qebase = -1;
 phys_addr_t get_qe_base(void)
 {
 	struct device_node *qe;
+	unsigned int size;
+	const void *prop;
 
 	if (qebase != -1)
 		return qebase;
 
+	qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
+	if (!qe) {
 		qe = of_find_node_by_type(NULL, "qe");
-	if (qe) {
-		unsigned int size;
-		const void *prop = of_get_property(qe, "reg", &size);
+		if (!qe)
+			return qebase;
+	}
+
+	prop = of_get_property(qe, "reg", &size);
 	qebase = of_translate_address(qe, prop);
 	of_node_put(qe);
-	};
 
 	return qebase;
 }
@@ -153,16 +158,26 @@ static unsigned int brg_clk = 0;
 unsigned int get_brg_clk(void)
 {
 	struct device_node *qe;
+	unsigned int size;
+	const u32 *prop;
+
 	if (brg_clk)
 		return brg_clk;
 
+	qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
+	if (!qe) {
 		qe = of_find_node_by_type(NULL, "qe");
-	if (qe) {
-		unsigned int size;
-		const u32 *prop = of_get_property(qe, "brg-frequency", &size);
+		if (!qe)
+			return brg_clk;
+	}
+
+	prop = of_get_property(qe, "brg-frequency", &size);
+	if (!prop || size != sizeof(*prop))
+		return brg_clk;
+
 	brg_clk = *prop;
 	of_node_put(qe);
-	};
+
 	return brg_clk;
 }
 
@@ -322,7 +337,7 @@ static rh_info_t qe_muram_info;
 static void qe_muram_init(void)
 {
 	struct device_node *np;
-	u32 address;
+	const u32 *address;
 	u64 size;
 	unsigned int flags;
 
@@ -335,11 +350,21 @@ static void qe_muram_init(void)
 	/* XXX: This is a subset of the available muram. It
 	 * varies with the processor and the microcode patches activated.
 	 */
-	if ((np = of_find_node_by_name(NULL, "data-only")) != NULL) {
-		address = *of_get_address(np, 0, &size, &flags);
-		of_node_put(np);
-		rh_attach_region(&qe_muram_info, address, (int) size);
+	np = of_find_compatible_node(NULL, NULL, "fsl,qe-muram-data");
+	if (!np) {
+		np = of_find_node_by_name(NULL, "data-only");
+		if (!np) {
+			WARN_ON(1);
+			return;
 		}
+	}
+
+	address = of_get_address(np, 0, &size, &flags);
+	WARN_ON(!address);
+
+	of_node_put(np);
+	if (address)
+		rh_attach_region(&qe_muram_info, *address, (int)size);
 }
 
 /* This function returns an index into the MURAM area.