[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>

11 files changed, 117 insertions, 66 deletions

diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index e74a4a65d469..470cbc0cfceb 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/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>;
                 };
         };
diff --git a/arch/powerpc/boot/dts/mpc832x_mds.dts b/arch/powerpc/boot/dts/mpc832x_mds.dts
index 690252456d3d..e300df4d3e05 100644
--- a/arch/powerpc/boot/dts/mpc832x_mds.dts
+++ b/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>;
diff --git a/arch/powerpc/boot/dts/mpc832x_rdb.dts b/arch/powerpc/boot/dts/mpc832x_rdb.dts
index 10ff7aadf9dc..4d5cfd32cd7c 100644
--- a/arch/powerpc/boot/dts/mpc832x_rdb.dts
+++ b/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>;
diff --git a/arch/powerpc/boot/dts/mpc836x_mds.dts b/arch/powerpc/boot/dts/mpc836x_mds.dts
index 2181d2cdbff2..9a2581b6a170 100644
--- a/arch/powerpc/boot/dts/mpc836x_mds.dts
+++ b/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>;
diff --git a/arch/powerpc/boot/dts/mpc8568mds.dts b/arch/powerpc/boot/dts/mpc8568mds.dts
index 5818a7c861e7..04f5c6f68256 100644
--- a/arch/powerpc/boot/dts/mpc8568mds.dts
+++ b/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>;
diff --git a/arch/powerpc/platforms/83xx/mpc832x_mds.c b/arch/powerpc/platforms/83xx/mpc832x_mds.c
index dbdd4adef645..6dbc6eabcb02 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_mds.c
+++ b/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_node_by_type(NULL, "qeic");
-        if (!np)
-                return;
-
+        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 */
diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
index 5fddd2285abb..9f0fd88b2b1f 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c
+++ b/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_node_by_type(NULL, "qeic");
-        if (!np)
-                return;
-
+        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 */
diff --git a/arch/powerpc/platforms/83xx/mpc836x_mds.c b/arch/powerpc/platforms/83xx/mpc836x_mds.c
index db491ec006e0..c2e5de60c055 100644
--- a/arch/powerpc/platforms/83xx/mpc836x_mds.c
+++ b/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_node_by_type(NULL, "qeic");
-        if (!np)
-                return;
-
+        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 */
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index 4fdf5abefffd..25f8bc75e838 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/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_node_by_type(NULL, "qeic");
-        if (!np)
-                return;
-
+        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 */
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index f2c0988a03b8..26f7d83c4be5 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/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_node_by_type(NULL, "qe");
+        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");
 
diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c
index 3925eae9b0f5..5ef844da9355 100644
--- a/arch/powerpc/sysdev/qe_lib/qe.c
+++ b/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_node_by_type(NULL, "qe");
-        if (qe) {
-                unsigned int size;
-                const void *prop = of_get_property(qe, "reg", &size);
-                qebase = of_translate_address(qe, prop);
-                of_node_put(qe);
-        };
+        qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
+        if (!qe) {
+                qe = of_find_node_by_type(NULL, "qe");
+                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_node_by_type(NULL, "qe");
-        if (qe) {
-                unsigned int size;
-                const u32 *prop = of_get_property(qe, "brg-frequency", &size);
-                brg_clk = *prop;
-                of_node_put(qe);
-        };
+        qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
+        if (!qe) {
+                qe = of_find_node_by_type(NULL, "qe");
+                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.