mpc85xx: Port to RTEMS

freebsd/sys/dev/ofw/ofwpci.c

@@ -47,7 +47,9 @@ __FBSDID("$FreeBSD$");
 #include <dev/pci/pcib_private.h>
 
 #include <machine/bus.h>
+#ifndef __rtems__
 #include <machine/md_var.h>
+#endif /* __rtems__ */
 #include <machine/resource.h>
 
 #include <vm/vm.h>
@@ -79,9 +81,11 @@ static int ofw_pci_deactivate_resource(device_t, device_t, int, int,
 static int ofw_pci_adjust_resource(device_t, device_t, int,
     struct resource *, rman_res_t, rman_res_t);
 
+#ifndef __rtems__
 #ifdef __powerpc__
 static bus_space_tag_t ofw_pci_bus_get_bus_tag(device_t, device_t);
 #endif
+#endif /* __rtems__ */
 
 /*
  * pcib interface
@@ -118,9 +122,11 @@ static device_method_t	ofw_pci_methods[] = {
 	DEVMETHOD(bus_activate_resource,	ofw_pci_activate_resource),
 	DEVMETHOD(bus_deactivate_resource,	ofw_pci_deactivate_resource),
 	DEVMETHOD(bus_adjust_resource,	ofw_pci_adjust_resource),
+#ifndef __rtems__
 #ifdef __powerpc__
 	DEVMETHOD(bus_get_bus_tag,	ofw_pci_bus_get_bus_tag),
 #endif
+#endif /* __rtems__ */
 
 	/* pcib interface */
 	DEVMETHOD(pcib_maxslots,	ofw_pci_maxslots),
@@ -531,9 +537,13 @@ ofw_pci_activate_resource(device_t bus, device_t child, int type, int rid,
 		printf("ofw_pci mapdev: start %jx, len %jd\n",
 		    (rman_res_t)start, rman_get_size(res));
 
+#ifndef __rtems__
 	tag = BUS_GET_BUS_TAG(child, child);
 	if (tag == NULL)
 		return (ENOMEM);
+#else /* __rtems__ */
+	tag = 0;
+#endif /* __rtems__ */
 
 	rman_set_bustag(res, tag);
 	rv = bus_space_map(tag, start,
@@ -547,6 +557,7 @@ ofw_pci_activate_resource(device_t bus, device_t child, int type, int rid,
 	return (rman_activate_resource(res));
 }
 
+#ifndef __rtems__
 #ifdef __powerpc__
 static bus_space_tag_t
 ofw_pci_bus_get_bus_tag(device_t bus, device_t child)
@@ -555,20 +566,25 @@ ofw_pci_bus_get_bus_tag(device_t bus, device_t child)
 	return (&bs_le_tag);
 }
 #endif
+#endif /* __rtems__ */
 
 static int
 ofw_pci_deactivate_resource(device_t bus, device_t child, int type, int rid,
     struct resource *res)
 {
+#ifndef __rtems__
 	vm_size_t psize;
+#endif /* __rtems__ */
 
 	if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY) {
 		return (bus_generic_deactivate_resource(bus, child, type, rid,
 		    res));
 	}
 
+#ifndef __rtems__
 	psize = rman_get_size(res);
 	pmap_unmapdev((vm_offset_t)rman_get_virtual(res), psize);
+#endif /* __rtems__ */
 
 	return (rman_deactivate_resource(res));
 }

freebsd/sys/dev/pci/pci.c

@@ -3694,6 +3694,7 @@ pci_reserve_secbus(device_t bus, device_t dev, pcicfgregs *cfg,
 		}
 		break;
 
+#ifndef __rtems__
 	case 0x00dd10de:
 		/* Compaq R3000 BIOS sets wrong subordinate bus number. */
 		if ((cp = kern_getenv("smbios.planar.maker")) == NULL)
@@ -3715,6 +3716,7 @@ pci_reserve_secbus(device_t bus, device_t dev, pcicfgregs *cfg,
 			PCI_WRITE_CONFIG(bus, dev, sub_reg, sub_bus, 1);
 		}
 		break;
+#endif /* __rtems__ */
 	}
 
 	if (bootverbose)

freebsd/sys/kern/subr_bus.c

@@ -5588,7 +5588,6 @@ bus_data_generation_update(void)
 	bus_data_generation++;
 }
 
-#ifndef __rtems__
 int
 bus_free_resource(device_t dev, int type, struct resource *r)
 {
@@ -5597,6 +5596,7 @@ bus_free_resource(device_t dev, int type, struct resource *r)
 	return (bus_release_resource(dev, type, rman_get_rid(r), r));
 }
 
+#ifndef __rtems__
 device_t
 device_lookup_by_name(const char *name)
 {

freebsd/sys/powerpc/include/machine/spr.h

@@ -31,6 +31,9 @@
 #ifndef _POWERPC_SPR_H_
 #define	_POWERPC_SPR_H_
 
+#ifdef __rtems__
+#define BOOKE
+#endif /* __rtems__ */
 #ifndef _LOCORE
 #define	mtspr(reg, val)							\
 	__asm __volatile("mtspr %0,%1" : : "K"(reg), "r"(val))

freebsd/sys/powerpc/mpc85xx/mpc85xx.c

@@ -273,6 +273,7 @@ law_pci_target(struct resource *res, int *trgt_mem, int *trgt_io)
 	return (rv);
 }
 
+#ifndef __rtems__
 static void
 l3cache_inval(void)
 {
@@ -320,6 +321,7 @@ mpc85xx_enable_l3_cache(void)
 		}
 	}
 }
+#endif /* __rtems__ */
 
 int
 mpc85xx_is_qoriq(void)
@@ -333,6 +335,7 @@ mpc85xx_is_qoriq(void)
 	return (0);
 }
 
+#ifndef __rtems__
 uint32_t
 mpc85xx_get_platform_clock(void)
 {
@@ -359,3 +362,4 @@ mpc85xx_get_system_clock(void)
 
 	return (freq / 2);
 }
+#endif /* __rtems__ */

freebsd/sys/powerpc/mpc85xx/pci_mpc85xx.c

@@ -78,6 +78,9 @@ __FBSDID("$FreeBSD$");
 #include <machine/intr_machdep.h>
 
 #include <powerpc/mpc85xx/mpc85xx.h>
+#ifdef __rtems__
+#include <rtems/score/memory.h>
+#endif /* __rtems__ */
 
 #define	REG_CFG_ADDR	0x0000
 #define	CONFIG_ACCESS_ENABLE	0x80000000
@@ -233,7 +236,9 @@ static int fsl_pcib_release_msix(device_t dev, device_t child, int irq);
 static int fsl_pcib_map_msi(device_t dev, device_t child,
     int irq, uint64_t *addr, uint32_t *data);
 
+#ifndef __rtems__
 static vmem_t *msi_vmem;	/* Global MSI vmem, holds all MSI ranges. */
+#endif /* __rtems__ */
 
 /*
  * Bus interface definitions.
@@ -414,6 +419,8 @@ fsl_pcib_attach(device_t dev)
 		return (ENXIO);
 	}
 
+	fsl_pcib_err_init(dev);
+
 	/* Setup interrupt handler */
 	error = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_MISC | INTR_MPSAFE,
 	    NULL, fsl_pcib_err_intr, dev, &sc->sc_ih);
@@ -429,8 +436,6 @@ fsl_pcib_attach(device_t dev)
 		return (ENXIO);
 	}
 
-	fsl_pcib_err_init(dev);
-
 	return (ofw_pci_attach(dev));
 
 err:
@@ -751,8 +756,15 @@ fsl_pcib_decode_win(phandle_t node, struct fsl_pcib_softc *sc)
 
 	fsl_pcib_inbound(sc, 1, -1, 0, 0, 0);
 	fsl_pcib_inbound(sc, 2, -1, 0, 0, 0);
+#ifndef __rtems__
 	fsl_pcib_inbound(sc, 3, PIWAR_TRGT_LOCAL, 0,
 	    ptoa(Maxmem), 0);
+#else /* __rtems__ */
+	const Memory_Information *mem = _Memory_Get();
+	const Memory_Area *area = _Memory_Get_area( mem, 0 );
+	fsl_pcib_inbound(sc, 3, PIWAR_TRGT_LOCAL, 0,
+	    (uintptr_t)_Memory_Get_end(area), 0);
+#endif /* __rtems__ */
 
 	/* Direct-map the CCSR for MSIs. */
 	/* Freescale PCIe 2.x has a dedicated MSI window. */
@@ -770,6 +782,7 @@ fsl_pcib_decode_win(phandle_t node, struct fsl_pcib_softc *sc)
 static int fsl_pcib_alloc_msi(device_t dev, device_t child,
     int count, int maxcount, int *irqs)
 {
+#ifndef __rtems__
 	struct fsl_pcib_softc *sc;
 	vmem_addr_t start;
 	int err, i;
@@ -786,6 +799,9 @@ static int fsl_pcib_alloc_msi(device_t dev, device_t child,
 
 	for (i = 0; i < count; i++)
 		irqs[i] = start + i;
+#else /* __rtems__ */
+	BSD_ASSERT(0);
+#endif /* __rtems__ */
 
 	return (0);
 }
@@ -793,10 +809,14 @@ static int fsl_pcib_alloc_msi(device_t dev, device_t child,
 static int fsl_pcib_release_msi(device_t dev, device_t child,
     int count, int *irqs)
 {
+#ifndef __rtems__
 	if (msi_vmem == NULL)
 		return (ENODEV);
 
 	vmem_xfree(msi_vmem, irqs[0], count);
+#else /* __rtems__ */
+	BSD_ASSERT(0);
+#endif /* __rtems__ */
 	return (0);
 }
 
@@ -869,7 +889,11 @@ fsl_msi_intr_filter(void *priv)
 	i = 0;
 	while (reg != 0) {
 		if (reg & 1)
+#ifndef __rtems__
 			powerpc_dispatch_intr(data->vectors[i], NULL);
+#else /* __rtems__ */
+			BSD_ASSERT(0);
+#endif /* __rtems__ */
 		reg >>= 1;
 		i++;
 	}
@@ -897,8 +921,10 @@ fsl_msi_attach(device_t dev)
 
 	sc = device_get_softc(dev);
 
+#ifndef __rtems__
 	if (msi_vmem == NULL)
 		msi_vmem = vmem_create("MPIC MSI", 0, 0, 1, 0, M_BESTFIT | M_WAITOK);
+#endif /* __rtems__ */
 
 	/* Manually play with resource entries. */
 	sc->sc_base = bus_get_resource_start(dev, SYS_RES_MEMORY, 0);
@@ -916,11 +942,13 @@ fsl_msi_attach(device_t dev)
 		bus_setup_intr(dev, irq->res, INTR_TYPE_MISC | INTR_MPSAFE,
 		    fsl_msi_intr_filter, NULL, irq, &irq->cookie);
 	}
+#ifndef __rtems__
 	sc->sc_map.irq_base = powerpc_register_pic(dev, ofw_bus_get_node(dev),
 	    FSL_NUM_MSIS, 0, 0);
 
 	/* Let vmem and the IRQ subsystem work their magic for allocations. */
 	vmem_add(msi_vmem, sc->sc_map.irq_base, FSL_NUM_MSIS, M_WAITOK);
+#endif /* __rtems__ */
 
 	SLIST_INSERT_HEAD(&fsl_msis, &sc->sc_map, slist);
 

libbsd.py

@@ -177,6 +177,7 @@ class rtems(builder.Module):
                 'local/ofw_if.c',
                 'local/pcib_if.c',
                 'local/pci_if.c',
+                'local/pic_if.c',
                 'local/xdma_if.c',
                 'local/usb_if.c',
                 'local/mmcbus_if.c',
@@ -3084,17 +3085,21 @@ class pci(builder.Module):
                 'sys/dev/pci/pcib_support.c',
                 'sys/dev/pci/pci.c',
                 'sys/dev/pci/pci_pci.c',
+                'sys/dev/pci/pci_subr.c',
                 'sys/dev/pci/pci_user.c',
+                'sys/dev/ofw/ofwpci.c',
             ],
             mm.generator['source']()
         )
         self.addKernelSpaceHeaderFiles(
             [
+                'sys/dev/ofw/ofwpci.h',
                 'sys/dev/pci/pcib_private.h',
                 'sys/dev/pci/pci_private.h',
                 'sys/dev/pci/pcireg.h',
                 'sys/dev/pci/pcivar.h',
                 'sys/dev/pci/pcivar.h',
+                'sys/powerpc/mpc85xx/mpc85xx.h',
             ]
         )
         self.addCPUDependentFreeBSDHeaderFiles(
@@ -3103,6 +3108,9 @@ class pci(builder.Module):
                 'sys/x86/include/legacyvar.h',
                 'sys/x86/include/bus.h',
                 'sys/x86/include/pci_cfgreg.h',
+                'sys/powerpc/include/platformvar.h',
+                'sys/powerpc/include/hid.h',
+                'sys/powerpc/include/pio.h',
             ]
         )
         self.addCPUDependentFreeBSDSourceFiles(
@@ -3113,6 +3121,23 @@ class pci(builder.Module):
             ],
             mm.generator['source']()
         )
+        self.addCPUDependentFreeBSDSourceFiles(
+            [ 'powerpc' ],
+            [
+                'sys/powerpc/mpc85xx/mpc85xx.c',
+                'sys/powerpc/mpc85xx/pci_mpc85xx.c',
+                'sys/powerpc/mpc85xx/pci_mpc85xx_pcib.c',
+                'sys/powerpc/ofw/ofw_pcib_pci.c',
+            ],
+            mm.generator['source']()
+        )
+        self.addCPUDependentRTEMSSourceFiles(
+            [ 'powerpc' ],
+            [
+                'sys/powerpc/platform_mpc85xx.c',
+            ],
+            mm.generator['source']()
+        )
 
 
 #

rtemsbsd/include/bsp/nexus-devices.h

@@ -255,10 +255,18 @@ SYSINIT_DRIVER_REFERENCE(ukphy, miibus);
 #include <bsp/irq.h>
 
 RTEMS_BSD_DEFINE_NEXUS_DEVICE(ofwbus, 0, 0, NULL);
+
 SYSINIT_DRIVER_REFERENCE(simplebus, ofwbus);
 SYSINIT_DRIVER_REFERENCE(tsec, simplebus);
 SYSINIT_DRIVER_REFERENCE(ukphy, miibus);
 
+#ifdef RTEMS_BSD_MODULE_PCI
+SYSINIT_DRIVER_REFERENCE(pcib, ofwbus);
+SYSINIT_DRIVER_REFERENCE(pci, pcib);
+SYSINIT_DRIVER_REFERENCE(pcib, pci);
+SYSINIT_DRIVER_REFERENCE(rcpcib, pci);
+#endif
+
 #endif /* QORIQ_CHIP_IS_T_VARIANT(QORIQ_CHIP_VARIANT) */
 
 #elif defined(LIBBSP_POWERPC_TQM8XX_BSP_H)

rtemsbsd/sys/powerpc/platform_mpc85xx.c

@@ -0,0 +1,48 @@
+#include <machine/rtems-bsd-kernel-space.h>
+
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2008-2012 Semihalf.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#include <sys/param.h>
+#include <sys/mutex.h>
+#include <sys/bus.h>
+
+#include <powerpc/mpc85xx/mpc85xx.h>
+
+#include <bsp.h>
+
+#ifdef LIBBSP_POWERPC_QORIQ_BSP_H
+
+#include <bsp/qoriq.h>
+
+vm_paddr_t ccsrbar_pa = (vm_paddr_t)&qoriq;
+vm_offset_t ccsrbar_va = (vm_offset_t)&qoriq;
+vm_size_t ccsrbar_size = sizeof(qoriq);
+
+#endif /* LIBBSP_POWERPC_QORIQ_BSP_H */