diff --git a/docs/system/target-ppc.rst b/docs/system/target-ppc.rst
index 43fadf3c00b..a2f04c533c2 100644
--- a/docs/system/target-ppc.rst
+++ b/docs/system/target-ppc.rst
@@ -43,19 +43,5 @@ the g3beige and mac99 PowerMac and the 40p machines. OpenBIOS is a free
 (GPL v2) portable firmware implementation. The goal is to implement a
 100% IEEE 1275-1994 (referred to as Open Firmware) compliant firmware.
 
-The following options are specific to the PowerPC emulation:
-
-``-g WxH[xDEPTH]``
-   Set the initial VGA graphic mode. The default is 800x600x32.
-
-``-prom-env string``
-   Set OpenBIOS variables in NVRAM, for example:
-
-   ::
-
-      qemu-system-ppc -prom-env 'auto-boot?=false' \
-       -prom-env 'boot-device=hd:2,\yaboot' \
-       -prom-env 'boot-args=conf=hd:2,\yaboot.conf'
-
 More information is available at
 http://perso.magic.fr/l_indien/qemu-ppc/.
diff --git a/docs/system/target-ppc.texi b/docs/system/target-ppc.texi
index 55f98f65b12..5c83d4f68e7 100644
--- a/docs/system/target-ppc.texi
+++ b/docs/system/target-ppc.texi
@@ -47,31 +47,6 @@ for the g3beige and mac99 PowerMac and the 40p machines. OpenBIOS is a free
 (GPL v2) portable firmware implementation. The goal is to implement a 100%
 IEEE 1275-1994 (referred to as Open Firmware) compliant firmware.
 
-@c man begin OPTIONS
-
-The following options are specific to the PowerPC emulation:
-
-@table @option
-
-@item -g @var{W}x@var{H}[x@var{DEPTH}]
-
-Set the initial VGA graphic mode. The default is 800x600x32.
-
-@item -prom-env @var{string}
-
-Set OpenBIOS variables in NVRAM, for example:
-
-@example
-qemu-system-ppc -prom-env 'auto-boot?=false' \
- -prom-env 'boot-device=hd:2,\yaboot' \
- -prom-env 'boot-args=conf=hd:2,\yaboot.conf'
-@end example
-
-@end table
-
-@c man end
-
-
 More information is available at
 @url{http://perso.magic.fr/l_indien/qemu-ppc/}.
 
diff --git a/docs/system/target-sparc.rst b/docs/system/target-sparc.rst
index 589c88d1756..b55f8d09e9c 100644
--- a/docs/system/target-sparc.rst
+++ b/docs/system/target-sparc.rst
@@ -60,22 +60,3 @@ QEMU web site. There are still issues with NetBSD and OpenBSD, but most
 kernel versions work. Please note that currently older Solaris kernels
 don't work probably due to interface issues between OpenBIOS and
 Solaris.
-
-The following options are specific to the Sparc32 emulation:
-
-``-g WxHx[xDEPTH]``
-   Set the initial graphics mode. For TCX, the default is 1024x768x8
-   with the option of 1024x768x24. For cgthree, the default is
-   1024x768x8 with the option of 1152x900x8 for people who wish to use
-   OBP.
-
-``-prom-env string``
-   Set OpenBIOS variables in NVRAM, for example:
-
-   ::
-
-      qemu-system-sparc -prom-env 'auto-boot?=false' \
-       -prom-env 'boot-device=sd(0,2,0):d' -prom-env 'boot-args=linux single'
-
-``-M [SS-4|SS-5|SS-10|SS-20|SS-600MP|LX|Voyager|SPARCClassic] [|SPARCbook]``
-   Set the emulated machine type. Default is SS-5.
diff --git a/docs/system/target-sparc.texi b/docs/system/target-sparc.texi
index 7748001f734..99fbf820b42 100644
--- a/docs/system/target-sparc.texi
+++ b/docs/system/target-sparc.texi
@@ -64,32 +64,5 @@ most kernel versions work. Please note that currently older Solaris kernels
 don't work probably due to interface issues between OpenBIOS and
 Solaris.
 
-@c man begin OPTIONS
-
-The following options are specific to the Sparc32 emulation:
-
-@table @option
-
-@item -g @var{W}x@var{H}x[x@var{DEPTH}]
-
-Set the initial graphics mode. For TCX, the default is 1024x768x8 with the
-option of 1024x768x24. For cgthree, the default is 1024x768x8 with the option
-of 1152x900x8 for people who wish to use OBP.
-
-@item -prom-env @var{string}
-
-Set OpenBIOS variables in NVRAM, for example:
-
-@example
-qemu-system-sparc -prom-env 'auto-boot?=false' \
- -prom-env 'boot-device=sd(0,2,0):d' -prom-env 'boot-args=linux single'
-@end example
-
-@item -M [SS-4|SS-5|SS-10|SS-20|SS-600MP|LX|Voyager|SPARCClassic] [|SPARCbook]
-
-Set the emulated machine type. Default is SS-5.
-
-@end table
-
 @c man end
 
diff --git a/docs/system/target-sparc64.rst b/docs/system/target-sparc64.rst
index ca76ba9c488..97e334b9308 100644
--- a/docs/system/target-sparc64.rst
+++ b/docs/system/target-sparc64.rst
@@ -35,15 +35,3 @@ QEMU emulates the following peripherals:
 -  2 PCI IDE interfaces with hard disk and CD-ROM support
 
 -  Floppy disk
-
-The following options are specific to the Sparc64 emulation:
-
-``-prom-env string``
-   Set OpenBIOS variables in NVRAM, for example:
-
-   ::
-
-      qemu-system-sparc64 -prom-env 'auto-boot?=false'
-
-``-M [sun4u|sun4v|niagara]``
-   Set the emulated machine type. The default is sun4u.
diff --git a/docs/system/target-sparc64.texi b/docs/system/target-sparc64.texi
index 4db4ca3842b..d381d3af719 100644
--- a/docs/system/target-sparc64.texi
+++ b/docs/system/target-sparc64.texi
@@ -36,25 +36,3 @@ PC-compatible serial ports
 Floppy disk
 @end itemize
 
-@c man begin OPTIONS
-
-The following options are specific to the Sparc64 emulation:
-
-@table @option
-
-@item -prom-env @var{string}
-
-Set OpenBIOS variables in NVRAM, for example:
-
-@example
-qemu-system-sparc64 -prom-env 'auto-boot?=false'
-@end example
-
-@item -M [sun4u|sun4v|niagara]
-
-Set the emulated machine type. The default is sun4u.
-
-@end table
-
-@c man end
-
diff --git a/qemu-options.hx b/qemu-options.hx
index 753bfce411d..44366909719 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -1962,6 +1962,13 @@ STEXI
 @item -g @var{width}x@var{height}[x@var{depth}]
 @findex -g
 Set the initial graphical resolution and depth (PPC, SPARC only).
+
+For PPC the default is 800x600x32.
+
+For SPARC with the TCX graphics device, the default is 1024x768x8 with the
+option of 1024x768x24. For cgthree, the default is 1024x768x8 with the option
+of 1152x900x8 for people who wish to use OBP.
+
 ETEXI
 
 DEF("vnc", HAS_ARG, QEMU_OPTION_vnc ,
@@ -4107,6 +4114,18 @@ STEXI
 @item -prom-env @var{variable}=@var{value}
 @findex -prom-env
 Set OpenBIOS nvram @var{variable} to given @var{value} (PPC, SPARC only).
+
+@example
+qemu-system-sparc -prom-env 'auto-boot?=false' \
+ -prom-env 'boot-device=sd(0,2,0):d' -prom-env 'boot-args=linux single'
+@end example
+
+@example
+qemu-system-ppc -prom-env 'auto-boot?=false' \
+ -prom-env 'boot-device=hd:2,\yaboot' \
+ -prom-env 'boot-args=conf=hd:2,\yaboot.conf'
+@end example
+
 ETEXI
 DEF("semihosting", 0, QEMU_OPTION_semihosting,
     "-semihosting    semihosting mode\n",
