Move target-* CPU file into a target/ folder

We've currently got 18 architectures in QEMU, and thus 18 target-xxx
folders in the root folder of the QEMU source tree. More architectures
(e.g. RISC-V, AVR) are likely to be included soon, too, so the main
folder of the QEMU sources slowly gets quite overcrowded with the
target-xxx folders.
To disburden the main folder a little bit, let's move the target-xxx
folders into a dedicated target/ folder, so that target-xxx/ simply
becomes target/xxx/ instead.

Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part]
Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part]
Acked-by: Michael Walle <michael@walle.cc> [lm32 part]
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part]
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part]
Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part]
Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part]
Acked-by: Richard Henderson <rth@twiddle.net> [alpha part]
Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part]
Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part]
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part]
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part]
Signed-off-by: Thomas Huth <thuth@redhat.com>

1 files changed, 0 insertions, 150 deletions

diff --git a/target-sh4/README.sh4 b/target-sh4/README.sh4
deleted file mode 100644
index ece046442a..0000000000
--- a/target-sh4/README.sh4
+++ /dev/null
@@ -1,150 +0,0 @@
-qemu target:   sh4
-author:        Samuel Tardieu <sam@rfc1149.net>
-last modified: Tue Dec  6 07:22:44 CET 2005
-
-The sh4 target is not ready at all yet for integration in qemu. This
-file describes the current state of implementation.
-
-Most places requiring attention and/or modification can be detected by
-looking for "XXXXX" or "abort()".
-
-The sh4 core is located in target-sh4/*, while the 7750 peripheral
-features (IO ports for example) are located in hw/sh7750.[ch]. The
-main board description is in hw/shix.c, and the NAND flash in
-hw/tc58128.[ch].
-
-All the shortcomings indicated here will eventually be resolved. This
-is a work in progress. Features are added in a semi-random order: if a
-point is blocking to progress on booting the Linux kernel for the shix
-board, it is addressed first; if feedback is necessary and no progress
-can be made on blocking points until it is received, a random feature
-is worked on.
-
-Goals
------
-
-The primary model being worked on is the soft MMU target to be able to
-emulate the Shix 2.0 board by Alexis Polti, described at
-https://web.archive.org/web/20070917001736/http://perso.enst.fr/~polti/realisations/shix20/
-
-Ultimately, qemu will be coupled with a system C or a verilog
-simulator to simulate the whole board functionalities.
-
-A sh4 user-mode has also somewhat started but will be worked on
-afterwards. The goal is to automate tests for GNAT (GNU Ada) compiler
-that I ported recently to the sh4-linux target.
-
-Registers
----------
-
-16 general purpose registers are available at any time. The first 8
-registers are banked and the non-directly visible ones can be accessed
-by privileged instructions. In qemu, we define 24 general purpose
-registers and the code generation use either [0-7]+[8-15] or
-[16-23]+[8-15] depending on the MD and RB flags in the sr
-configuration register.
-
-Instructions
-------------
-
-Most sh4 instructions have been implemented. The missing ones at this
-time are:
-  - FPU related instructions
-  - LDTLB to load a new MMU entry
-  - SLEEP to put the processor in sleep mode
-
-Most instructions could be optimized a lot. This will be worked on
-after the current model is fully functional unless debugging
-convenience requires that it is done early.
-
-Many instructions did not have a chance to be tested yet. The plan is
-to implement unit and regression testing of those in the future.
-
-MMU
----
-
-The MMU is implemented in the sh4 core. MMU management has not been
-tested at all yet. In the sh7750, it can be manipulated through memory
-mapped registers and this part has not yet been implemented.
-
-Exceptions
-----------
-
-Exceptions are implemented as described in the sh4 reference manual
-but have not been tested yet. They do not use qemu EXCP_ features
-yet.
-
-IRQ
----
-
-IRQ are not implemented yet.
-
-Peripheral features
--------------------
-
-  + Serial ports
-
-Configuration and use of the first serial port (SCI) without
-interrupts is supported. Input has not yet been tested.
-
-Configuration of the second serial port (SCIF) is supported. FIFO
-handling infrastructure has been started but is not completed yet.
-
-  + GPIO ports
-
-GPIO ports have been implemented. A registration function allows
-external modules to register interest in some port changes (see
-hw/tc58128.[ch] for an example) and will be called back. Interrupt
-generation is not yet supported but some infrastructure is in place
-for this purpose. Note that in the current model a peripheral module
-cannot directly simulate a H->L->H input port transition and have an
-interrupt generated on the low level.
-
-  + TC58128 NAND flash
-
-TC58128 NAND flash is partially implemented through GPIO ports. It
-supports reading from flash.
-
-GDB
----
-
-GDB remote target support has been implemented and lightly tested.
-
-Files
------
-
-File names are hardcoded at this time. The bootloader must be stored in
-shix_bios.bin in the current directory. The initial Linux image must
-be stored in shix_linux_nand.bin in the current directory in NAND
-format. Test files can be obtained from
-http://perso.enst.fr/~polti/robot/ as well as the various datasheets I
-use.
-
-qemu disk parameter on the command line is unused. You can supply any
-existing image and it will be ignored. As the goal is to simulate an
-embedded target, it is not clear how this parameter will be handled in
-the future.
-
-To build an ELF kernel image from the NAND image, 16 bytes have to be
-stripped off the end of every 528 bytes, keeping only 512 of them. The
-following Python code snippet does it:
-
-#! /usr/bin/python
-
-def denand (infd, outfd):
-    while True:
-        d = infd.read (528)
-        if not d: return
-        outfd.write (d[:512])
-
-if __name__ == '__main__':
-    import sys
-    denand (open (sys.argv[1], 'rb'),
-            open (sys.argv[2], 'wb'))
-
-Style isssues
--------------
-
-There is currently a mix between my style (space before opening
-parenthesis) and qemu style. This will be resolved before final
-integration is proposed.