[patch libBSD] dev/ofw: Use RTEMS OFW FDT implementation

Christian MAUDERER christian.mauderer at embedded-brains.de
Wed Jan 27 10:29:04 UTC 2021


Hello Niteesh,

I think there is an open Question from Chris for that patch:

https://lists.rtems.org/pipermail/devel/2021-January/063988.html

Best regards

Christian

Am 27.01.21 um 11:14 schrieb Niteesh G. S.:
> ping.
> 
> 
> On Wed, Jan 20, 2021 at 2:01 PM G S Niteesh Babu <niteesh.gs at gmail.com 
> <mailto:niteesh.gs at gmail.com>> wrote:
> 
>     This commit modifies the OFW interface to the RTEMS FDT
>     implementation instead of the default FreeBSD.
>     ---
>       freebsd/sys/dev/ofw/openfirm.c                |  2 ++
>       freebsd/sys/dev/ofw/openfirm.h                |  9 ++++++++
>       .../machine/rtems-bsd-kernel-namespace.h      | 22 -------------------
>       3 files changed, 11 insertions(+), 22 deletions(-)
> 
>     diff --git a/freebsd/sys/dev/ofw/openfirm.c
>     b/freebsd/sys/dev/ofw/openfirm.c
>     index 9cc7dbdc..30513ab2 100644
>     --- a/freebsd/sys/dev/ofw/openfirm.c
>     +++ b/freebsd/sys/dev/ofw/openfirm.c
>     @@ -333,6 +333,7 @@ OF_interpret(const char *cmd, int nreturns, ...)
>        * Device tree functions
>        */
> 
>     +#ifndef __rtems__
>       /* Return the next sibling of this node or 0. */
>       phandle_t
>       OF_peer(phandle_t node)
>     @@ -672,6 +673,7 @@ OF_xref_from_node(phandle_t node)
>                      return (node);
>              return (xref);
>       }
>     +#endif /* __rtems__ */
> 
>       device_t
>       OF_device_from_xref(phandle_t xref)
>     diff --git a/freebsd/sys/dev/ofw/openfirm.h
>     b/freebsd/sys/dev/ofw/openfirm.h
>     index f043197a..5df07258 100644
>     --- a/freebsd/sys/dev/ofw/openfirm.h
>     +++ b/freebsd/sys/dev/ofw/openfirm.h
>     @@ -64,7 +64,11 @@
> 
>       #include <sys/types.h>
>       #include <machine/_bus.h>
>     +#ifdef __rtems__
>     +#include <ofw/ofw_compat.h>
>     +#endif /* __rtems__ */
> 
>     +#ifndef __rtems__
>       /*
>        * Prototypes for Open Firmware Interface Routines
>        */
>     @@ -72,6 +76,7 @@
>       typedef uint32_t       ihandle_t;
>       typedef uint32_t       phandle_t;
>       typedef uint32_t       pcell_t;
>     +#endif /* __rtems__ */
> 
>       #ifdef _KERNEL
>       #include <sys/malloc.h>
>     @@ -102,6 +107,7 @@ int         OF_test(const char *name);
>       void           OF_printf(const char *fmt, ...);
> 
>       /* Device tree functions */
>     +#ifndef __rtems__
>       phandle_t      OF_peer(phandle_t node);
>       phandle_t      OF_child(phandle_t node);
>       phandle_t      OF_parent(phandle_t node);
>     @@ -140,6 +146,7 @@ ssize_t             OF_package_to_path(phandle_t
>     node, char *buf, size_t len);
>        */
>       phandle_t      OF_node_from_xref(phandle_t xref);
>       phandle_t      OF_xref_from_node(phandle_t node);
>     +#endif /* __rtems__ */
> 
>       /*
>        * When properties contain references to other nodes using xref
>     handles it is
>     @@ -159,8 +166,10 @@ ssize_t            OF_read(ihandle_t instance,
>     void *buf, size_t len);
>       ssize_t                OF_write(ihandle_t instance, const void
>     *buf, size_t len);
>       int            OF_seek(ihandle_t instance, uint64_t where);
> 
>     +#ifndef __rtems__
>       phandle_t      OF_instance_to_package(ihandle_t instance);
>       ssize_t                OF_instance_to_path(ihandle_t instance,
>     char *buf, size_t len);
>     +#endif /* __rtems__ */
>       int            OF_call_method(const char *method, ihandle_t instance,
>                          int nargs, int nreturns, ...);
> 
>     diff --git a/rtemsbsd/include/machine/rtems-bsd-kernel-namespace.h
>     b/rtemsbsd/include/machine/rtems-bsd-kernel-namespace.h
>     index 75b744a4..53944393 100644
>     --- a/rtemsbsd/include/machine/rtems-bsd-kernel-namespace.h
>     +++ b/rtemsbsd/include/machine/rtems-bsd-kernel-namespace.h
>     @@ -3044,42 +3044,20 @@
>       #define        null_filtops _bsd_null_filtops
>       #define        nullop _bsd_nullop
>       #define        OF_call_method _bsd_OF_call_method
>     -#define        OF_canon _bsd_OF_canon
>     -#define        OF_child _bsd_OF_child
>       #define        OF_claim _bsd_OF_claim
>       #define        OF_close _bsd_OF_close
>       #define        OF_device_from_xref _bsd_OF_device_from_xref
>       #define        OF_device_register_xref _bsd_OF_device_register_xref
>       #define        OF_enter _bsd_OF_enter
>       #define        OF_exit _bsd_OF_exit
>     -#define        OF_finddevice _bsd_OF_finddevice
>     -#define        OF_getencprop _bsd_OF_getencprop
>     -#define        OF_getencprop_alloc _bsd_OF_getencprop_alloc
>     -#define        OF_getencprop_alloc_multi _bsd_OF_getencprop_alloc_multi
>     -#define        OF_getprop _bsd_OF_getprop
>     -#define        OF_getprop_alloc _bsd_OF_getprop_alloc
>     -#define        OF_getprop_alloc_multi _bsd_OF_getprop_alloc_multi
>     -#define        OF_getproplen _bsd_OF_getproplen
>     -#define        OF_hasprop _bsd_OF_hasprop
>       #define        OF_init _bsd_OF_init
>       #define        OF_install _bsd_OF_install
>     -#define        OF_instance_to_package _bsd_OF_instance_to_package
>     -#define        OF_instance_to_path _bsd_OF_instance_to_path
>       #define        OF_interpret _bsd_OF_interpret
>     -#define        OF_nextprop _bsd_OF_nextprop
>     -#define        OF_node_from_xref _bsd_OF_node_from_xref
>       #define        OF_open _bsd_OF_open
>     -#define        OF_package_to_path _bsd_OF_package_to_path
>     -#define        OF_parent _bsd_OF_parent
>     -#define        OF_peer _bsd_OF_peer
>       #define        OF_printf _bsd_OF_printf
>     -#define        OF_prop_free _bsd_OF_prop_free
>       #define        OF_read _bsd_OF_read
>       #define        OF_release _bsd_OF_release
>     -#define        OF_searchencprop _bsd_OF_searchencprop
>     -#define        OF_searchprop _bsd_OF_searchprop
>       #define        OF_seek _bsd_OF_seek
>     -#define        OF_setprop _bsd_OF_setprop
>       #define        OF_test _bsd_OF_test
>       #define        ofw_bus_assigned_addresses_to_rl
>     _bsd_ofw_bus_assigned_addresses_to_rl
>       #define        ofwbus_driver _bsd_ofwbus_driver
>     -- 
>     2.17.1
> 

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