Re: [U-Boot] [RFC PATCH 1/6] Mips: Move content of arch/mips/cpu to arch/mips/cpu/mips32
Hello Wolfgang,
2011/3/13 Wolfgang Denk w...@denx.de:
Dear Daniel Schwierzeck,
In message 4d7c147a.5060...@gmail.com you wrote:
All current CPUs and SoCs are based on Mips32 arch. The complete
Is that true? What about purple SoC? IIUC It's based on MIPS 5Kc
and capable of 64-bit, which MIPS32 is 32-bit only architecture.
that was an assumption. I could not find any information about Purple.
This patch series is a suggestion. Maybe there are better approaches
like arch/mips/cpu/{mips4k|mips5k|mips24k|...|octeon}.
Purple is (better: was) indeed a 64 bit system.
OTOH, the purple board has not been actively maintained for several
years, and I'm not aware of anybody who still has access to the
hardware. If it should cause trouble, it would probably most
appropriate to drop the purple support.
shall I include an additional patch that drops Purple support and do you agree
to the refactoring of the CPU directory itself?
Best regards,
Daniel
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Re: [U-Boot] [RFC PATCH 1/6] Mips: Move content of arch/mips/cpu to arch/mips/cpu/mips32
Dear Daniel Schwierzeck, In message aanlktinp-3rvxvkcxi8_xtra8mkobztv88vu2t1yk...@mail.gmail.com you wrote: OTOH, the purple board has not been actively maintained for several years, and I'm not aware of anybody who still has access to the hardware. =C2=A0If it should cause trouble, it would probably most appropriate to drop the purple support. shall I include an additional patch that drops Purple support and do you agree Yes, please, if it reduces the effort for you now. to the refactoring of the CPU directory itself? Sorry, I didn't have much time to read it / think about it yet. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de Drawing on my fine command of language, I said nothing. ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] [RFC PATCH 1/6] Mips: Move content of arch/mips/cpu to arch/mips/cpu/mips32
Seperating the SOCs solves most of my problems with the exception of board.c,
but then again, we're rather a special case there due to some of the stuff we
do.
Not counting our SDK we have around 27Kloc for our platform, a large chunk of
that being DDR2/3 memory initialization code. Our SDK currently weighs in at
764Kloc, most of which isn't needed by U-Boot (lots of autogenerated hardware
definition files for all our chips).
-Aaron
On Saturday, March 12, 2011 04:48:58 PM Daniel Schwierzeck wrote:
Hi Shinya,
On 03/12/2011 03:43 PM, Shinya Kuribayashi wrote:
On 3/9/11 10:16 PM, daniel.schwierz...@googlemail.com wrote:
All current CPUs and SoCs are based on Mips32 arch. The complete
Is that true? What about purple SoC? IIUC It's based on MIPS 5Kc
and capable of 64-bit, which MIPS32 is 32-bit only architecture.
that was an assumption. I could not find any information about Purple.
This patch series is a suggestion. Maybe there are better approaches
like arch/mips/cpu/{mips4k|mips5k|mips24k|...|octeon}.
code resides in the global arch/mips/cpu directory. This is not
suitable if other Mips architectures like Mips64 or Octeon should
be supported in the future.
Just for the record.
Personally, Octeon is sort of a special case. It's based on MIPS64
architecture, and definitely a MIPS SoC, but not usual MIPS machine.
As Aaron already mentioned before, we have very few files sharable
with other MIPS machines even in the Linux kernel case. I think it
will take long time the Octeon port gets merged to upstream, regard-
less of my opinions, because they have a lot of things need to be
resolved prior to Octeon itself.
My original intention was cleaning up the MIPS CPU directory as
preparation to support new SoCs. I included this patch because Aaron
asked for this separation some weeks ago but no one answered or commented
;) However I posted this series to get some feedback if such a change is
wanted or acceptable. If so I prepare a new patch series. At least I hope
the SoC separation is acceptable.
Cheers,
Daniel
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Re: [U-Boot] [RFC PATCH 1/6] Mips: Move content of arch/mips/cpu to arch/mips/cpu/mips32
Dear Daniel Schwierzeck,
In message 4d7c147a.5060...@gmail.com you wrote:
All current CPUs and SoCs are based on Mips32 arch. The complete
Is that true? What about purple SoC? IIUC It's based on MIPS 5Kc
and capable of 64-bit, which MIPS32 is 32-bit only architecture.
that was an assumption. I could not find any information about Purple.
This patch series is a suggestion. Maybe there are better approaches
like arch/mips/cpu/{mips4k|mips5k|mips24k|...|octeon}.
Purple is (better: was) indeed a 64 bit system.
OTOH, the purple board has not been actively maintained for several
years, and I'm not aware of anybody who still has access to the
hardware. If it should cause trouble, it would probably most
appropriate to drop the purple support.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
No one can guarantee the actions of another.
-- Spock, Day of the Dove, stardate unknown
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Re: [U-Boot] [RFC PATCH 1/6] Mips: Move content of arch/mips/cpu to arch/mips/cpu/mips32
On 3/9/11 10:16 PM, daniel.schwierz...@googlemail.com wrote: All current CPUs and SoCs are based on Mips32 arch. The complete Is that true? What about purple SoC? IIUC It's based on MIPS 5Kc and capable of 64-bit, which MIPS32 is 32-bit only architecture. code resides in the global arch/mips/cpu directory. This is not suitable if other Mips architectures like Mips64 or Octeon should be supported in the future. Just for the record. Personally, Octeon is sort of a special case. It's based on MIPS64 architecture, and definitely a MIPS SoC, but not usual MIPS machine. As Aaron already mentioned before, we have very few files sharable with other MIPS machines even in the Linux kernel case. I think it will take long time the Octeon port gets merged to upstream, regard- less of my opinions, because they have a lot of things need to be resolved prior to Octeon itself. To achieve this the current CPU code is moved to its own mips32 subdirectory. All Mips32 boards have to use mips32 as config switch in board.cfg. Signed-off-by: Daniel Schwierzeckdaniel.schwierz...@googlemail.com Cc: Shinya Kuribayashiskuri...@pobox.com ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] [RFC PATCH 1/6] Mips: Move content of arch/mips/cpu to arch/mips/cpu/mips32
Hi Shinya,
On 03/12/2011 03:43 PM, Shinya Kuribayashi wrote:
On 3/9/11 10:16 PM, daniel.schwierz...@googlemail.com wrote:
All current CPUs and SoCs are based on Mips32 arch. The complete
Is that true? What about purple SoC? IIUC It's based on MIPS 5Kc
and capable of 64-bit, which MIPS32 is 32-bit only architecture.
that was an assumption. I could not find any information about Purple.
This patch series is a suggestion. Maybe there are better approaches
like arch/mips/cpu/{mips4k|mips5k|mips24k|...|octeon}.
code resides in the global arch/mips/cpu directory. This is not
suitable if other Mips architectures like Mips64 or Octeon should
be supported in the future.
Just for the record.
Personally, Octeon is sort of a special case. It's based on MIPS64
architecture, and definitely a MIPS SoC, but not usual MIPS machine.
As Aaron already mentioned before, we have very few files sharable
with other MIPS machines even in the Linux kernel case. I think it
will take long time the Octeon port gets merged to upstream, regard-
less of my opinions, because they have a lot of things need to be
resolved prior to Octeon itself.
My original intention was cleaning up the MIPS CPU directory as
preparation to support new SoCs. I included this patch because Aaron
asked for this separation some weeks ago but no one answered or commented ;)
However I posted this series to get some feedback if such a change is
wanted or acceptable. If so I prepare a new patch series. At least I
hope the SoC separation is acceptable.
Cheers,
Daniel
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[U-Boot] [RFC PATCH 1/6] Mips: Move content of arch/mips/cpu to arch/mips/cpu/mips32
All current CPUs and SoCs are based on Mips32 arch. The complete
code resides in the global arch/mips/cpu directory. This is not
suitable if other Mips architectures like Mips64 or Octeon should
be supported in the future.
To achieve this the current CPU code is moved to its own mips32
subdirectory. All Mips32 boards have to use mips32 as config switch
in board.cfg.
Signed-off-by: Daniel Schwierzeck daniel.schwierz...@googlemail.com
Cc: Shinya Kuribayashi skuri...@pobox.com
---
arch/mips/cpu/{ = mips32}/Makefile |0
arch/mips/cpu/{ = mips32}/asc_serial.c |0
arch/mips/cpu/{ = mips32}/asc_serial.h |0
arch/mips/cpu/{ = mips32}/au1x00_eth.c |0
arch/mips/cpu/{ = mips32}/au1x00_serial.c |0
arch/mips/cpu/{ = mips32}/au1x00_usb_ohci.c |0
arch/mips/cpu/{ = mips32}/au1x00_usb_ohci.h |0
arch/mips/cpu/{ = mips32}/cache.S |0
arch/mips/cpu/{ = mips32}/config.mk |0
arch/mips/cpu/{ = mips32}/cpu.c |0
arch/mips/cpu/{ = mips32}/incaip_clock.c|0
arch/mips/cpu/{ = mips32}/incaip_wdt.S |0
arch/mips/cpu/{ = mips32}/interrupts.c |0
arch/mips/cpu/{ = mips32}/start.S |0
boards.cfg | 52 +-
15 files changed, 26 insertions(+), 26 deletions(-)
rename arch/mips/cpu/{ = mips32}/Makefile (100%)
rename arch/mips/cpu/{ = mips32}/asc_serial.c (100%)
rename arch/mips/cpu/{ = mips32}/asc_serial.h (100%)
rename arch/mips/cpu/{ = mips32}/au1x00_eth.c (100%)
rename arch/mips/cpu/{ = mips32}/au1x00_serial.c (100%)
rename arch/mips/cpu/{ = mips32}/au1x00_usb_ohci.c (100%)
rename arch/mips/cpu/{ = mips32}/au1x00_usb_ohci.h (100%)
rename arch/mips/cpu/{ = mips32}/cache.S (100%)
rename arch/mips/cpu/{ = mips32}/config.mk (100%)
rename arch/mips/cpu/{ = mips32}/cpu.c (100%)
rename arch/mips/cpu/{ = mips32}/incaip_clock.c (100%)
rename arch/mips/cpu/{ = mips32}/incaip_wdt.S (100%)
rename arch/mips/cpu/{ = mips32}/interrupts.c (100%)
rename arch/mips/cpu/{ = mips32}/start.S (100%)
diff --git a/arch/mips/cpu/Makefile b/arch/mips/cpu/mips32/Makefile
similarity index 100%
rename from arch/mips/cpu/Makefile
rename to arch/mips/cpu/mips32/Makefile
diff --git a/arch/mips/cpu/asc_serial.c b/arch/mips/cpu/mips32/asc_serial.c
similarity index 100%
rename from arch/mips/cpu/asc_serial.c
rename to arch/mips/cpu/mips32/asc_serial.c
diff --git a/arch/mips/cpu/asc_serial.h b/arch/mips/cpu/mips32/asc_serial.h
similarity index 100%
rename from arch/mips/cpu/asc_serial.h
rename to arch/mips/cpu/mips32/asc_serial.h
diff --git a/arch/mips/cpu/au1x00_eth.c b/arch/mips/cpu/mips32/au1x00_eth.c
similarity index 100%
rename from arch/mips/cpu/au1x00_eth.c
rename to arch/mips/cpu/mips32/au1x00_eth.c
diff --git a/arch/mips/cpu/au1x00_serial.c
b/arch/mips/cpu/mips32/au1x00_serial.c
similarity index 100%
rename from arch/mips/cpu/au1x00_serial.c
rename to arch/mips/cpu/mips32/au1x00_serial.c
diff --git a/arch/mips/cpu/au1x00_usb_ohci.c
b/arch/mips/cpu/mips32/au1x00_usb_ohci.c
similarity index 100%
rename from arch/mips/cpu/au1x00_usb_ohci.c
rename to arch/mips/cpu/mips32/au1x00_usb_ohci.c
diff --git a/arch/mips/cpu/au1x00_usb_ohci.h
b/arch/mips/cpu/mips32/au1x00_usb_ohci.h
similarity index 100%
rename from arch/mips/cpu/au1x00_usb_ohci.h
rename to arch/mips/cpu/mips32/au1x00_usb_ohci.h
diff --git a/arch/mips/cpu/cache.S b/arch/mips/cpu/mips32/cache.S
similarity index 100%
rename from arch/mips/cpu/cache.S
rename to arch/mips/cpu/mips32/cache.S
diff --git a/arch/mips/cpu/config.mk b/arch/mips/cpu/mips32/config.mk
similarity index 100%
rename from arch/mips/cpu/config.mk
rename to arch/mips/cpu/mips32/config.mk
diff --git a/arch/mips/cpu/cpu.c b/arch/mips/cpu/mips32/cpu.c
similarity index 100%
rename from arch/mips/cpu/cpu.c
rename to arch/mips/cpu/mips32/cpu.c
diff --git a/arch/mips/cpu/incaip_clock.c b/arch/mips/cpu/mips32/incaip_clock.c
similarity index 100%
rename from arch/mips/cpu/incaip_clock.c
rename to arch/mips/cpu/mips32/incaip_clock.c
diff --git a/arch/mips/cpu/incaip_wdt.S b/arch/mips/cpu/mips32/incaip_wdt.S
similarity index 100%
rename from arch/mips/cpu/incaip_wdt.S
rename to arch/mips/cpu/mips32/incaip_wdt.S
diff --git a/arch/mips/cpu/interrupts.c b/arch/mips/cpu/mips32/interrupts.c
similarity index 100%
rename from arch/mips/cpu/interrupts.c
rename to arch/mips/cpu/mips32/interrupts.c
diff --git a/arch/mips/cpu/start.S b/arch/mips/cpu/mips32/start.S
similarity index 100%
rename from arch/mips/cpu/start.S
rename to arch/mips/cpu/mips32/start.S
diff --git a/boards.cfg b/boards.cfg
index 45c3102..8f63b6c 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -217,32 +217,32 @@ M5282EVB m68kmcf52x2
m5282evbfreesca
M53017EVBm68kmcf52x2 m53017evb
freescale
EP2500 m68kmcf52x2 ep2500
Mercury
microblaze-generic
