powerpc/85xx: add board support for the Freescale hypervisor

Add support for the ePAPR-compliant Freescale hypervisor (aka "Topaz") on
the Freescale P3041DS, P4080DS, and P5020DS reference boards.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/platforms/85xx/Kconfig

@@ -169,6 +169,7 @@ config P3041_DS
 	select SWIOTLB
 	select MPC8xxx_GPIO
 	select HAS_RAPIDIO
+	select PPC_EPAPR_HV_PIC
 	help
 	  This option enables support for the P3041 DS board
 
@@ -180,6 +181,7 @@ config P4080_DS
 	select SWIOTLB
 	select MPC8xxx_GPIO
 	select HAS_RAPIDIO
+	select PPC_EPAPR_HV_PIC
 	help
 	  This option enables support for the P4080 DS board
 
@@ -194,6 +196,7 @@ config P5020_DS
 	select SWIOTLB
 	select MPC8xxx_GPIO
 	select HAS_RAPIDIO
+	select PPC_EPAPR_HV_PIC
 	help
 	  This option enables support for the P5020 DS board
 

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

@@ -120,6 +120,13 @@ static const struct of_device_id of_device_ids[] __devinitconst = {
 	{
 		.compatible	= "fsl,qoriq-pcie-v2.2",
 	},
+	/* The following two are for the Freescale hypervisor */
+	{
+		.name		= "hypervisor",
+	},
+	{
+		.name		= "handles",
+	},
 	{}
 };
 

arch/powerpc/platforms/85xx/p3041_ds.c

@@ -30,6 +30,7 @@
 #include <linux/of_platform.h>
 #include <sysdev/fsl_soc.h>
 #include <sysdev/fsl_pci.h>
+#include <asm/ehv_pic.h>
 
 #include "corenet_ds.h"
 
@@ -40,7 +41,20 @@ static int __init p3041_ds_probe(void)
 {
 	unsigned long root = of_get_flat_dt_root();
 
-	return of_flat_dt_is_compatible(root, "fsl,P3041DS");
+	if (of_flat_dt_is_compatible(root, "fsl,P3041DS"))
+		return 1;
+
+	/* Check if we're running under the Freescale hypervisor */
+	if (of_flat_dt_is_compatible(root, "fsl,P3041DS-hv")) {
+		ppc_md.init_IRQ = ehv_pic_init;
+		ppc_md.get_irq = ehv_pic_get_irq;
+		ppc_md.restart = fsl_hv_restart;
+		ppc_md.power_off = fsl_hv_halt;
+		ppc_md.halt = fsl_hv_halt;
+		return 1;
+	}
+
+	return 0;
 }
 
 define_machine(p3041_ds) {

arch/powerpc/platforms/85xx/p4080_ds.c

@@ -29,6 +29,7 @@
 #include <linux/of_platform.h>
 #include <sysdev/fsl_soc.h>
 #include <sysdev/fsl_pci.h>
+#include <asm/ehv_pic.h>
 
 #include "corenet_ds.h"
 
@@ -39,7 +40,20 @@ static int __init p4080_ds_probe(void)
 {
 	unsigned long root = of_get_flat_dt_root();
 
-	return of_flat_dt_is_compatible(root, "fsl,P4080DS");
+	if (of_flat_dt_is_compatible(root, "fsl,P4080DS"))
+		return 1;
+
+	/* Check if we're running under the Freescale hypervisor */
+	if (of_flat_dt_is_compatible(root, "fsl,P4080DS-hv")) {
+		ppc_md.init_IRQ = ehv_pic_init;
+		ppc_md.get_irq = ehv_pic_get_irq;
+		ppc_md.restart = fsl_hv_restart;
+		ppc_md.power_off = fsl_hv_halt;
+		ppc_md.halt = fsl_hv_halt;
+		return 1;
+	}
+
+	return 0;
 }
 
 define_machine(p4080_ds) {

arch/powerpc/platforms/85xx/p5020_ds.c

@@ -30,6 +30,7 @@
 #include <linux/of_platform.h>
 #include <sysdev/fsl_soc.h>
 #include <sysdev/fsl_pci.h>
+#include <asm/ehv_pic.h>
 
 #include "corenet_ds.h"
 
@@ -40,7 +41,20 @@ static int __init p5020_ds_probe(void)
 {
 	unsigned long root = of_get_flat_dt_root();
 
-	return of_flat_dt_is_compatible(root, "fsl,P5020DS");
+	if (of_flat_dt_is_compatible(root, "fsl,P5020DS"))
+		return 1;
+
+	/* Check if we're running under the Freescale hypervisor */
+	if (of_flat_dt_is_compatible(root, "fsl,P5020DS-hv")) {
+		ppc_md.init_IRQ = ehv_pic_init;
+		ppc_md.get_irq = ehv_pic_get_irq;
+		ppc_md.restart = fsl_hv_restart;
+		ppc_md.power_off = fsl_hv_halt;
+		ppc_md.halt = fsl_hv_halt;
+		return 1;
+	}
+
+	return 0;
 }
 
 define_machine(p5020_ds) {