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* [U-Boot] [PATCH] mpc5xxx: Add stub implementation of cache functions
@ 2014-08-26 11:05 Vasili Galka
  2014-08-26 19:45 ` Marek Vasut
  2014-09-01 20:53 ` Wolfgang Denk
  0 siblings, 2 replies; 6+ messages in thread
From: Vasili Galka @ 2014-08-26 11:05 UTC (permalink / raw)
  To: u-boot

Some drivers (e.g. net/e1000) reference these functions. So, this
fixes the build of MVBC_P board.

I'm not familiar with the MPC5xxx platform, maybe a full
implementation shall be implemented instead of this stub in the
future.

Signed-off-by: Vasili Galka <vvv444@gmail.com>
Cc: Wolfgang Denk <wd@denx.de>, Marek Vasut <marex@denx.de>
---
 arch/powerpc/cpu/mpc5xxx/Makefile |    1 +
 arch/powerpc/cpu/mpc5xxx/cache.c  |   15 +++++++++++++++
 2 files changed, 16 insertions(+), 0 deletions(-)
 create mode 100644 arch/powerpc/cpu/mpc5xxx/cache.c

diff --git a/arch/powerpc/cpu/mpc5xxx/Makefile b/arch/powerpc/cpu/mpc5xxx/Makefile
index 5c67e1d..d122b29 100644
--- a/arch/powerpc/cpu/mpc5xxx/Makefile
+++ b/arch/powerpc/cpu/mpc5xxx/Makefile
@@ -7,6 +7,7 @@
 
 extra-y	= start.o
 extra-y += traps.o
+obj-y  += cache.o
 obj-y  += io.o
 obj-y  += firmware_sc_task_bestcomm.impl.o
 obj-y += i2c.o
diff --git a/arch/powerpc/cpu/mpc5xxx/cache.c b/arch/powerpc/cpu/mpc5xxx/cache.c
new file mode 100644
index 0000000..5d674bc
--- /dev/null
+++ b/arch/powerpc/cpu/mpc5xxx/cache.c
@@ -0,0 +1,15 @@
+/*
+ * This file contains stub implementation of
+ *   invalidate_dcache_range()
+ *   flush_dcache_range()
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+void invalidate_dcache_range(unsigned long start, unsigned long stop)
+{
+}
+
+void flush_dcache_range(unsigned long start, unsigned long stop)
+{
+}
-- 
1.7.9

^ permalink raw reply related	[flat|nested] 6+ messages in thread

* [U-Boot] [PATCH] mpc5xxx: Add stub implementation of cache functions
  2014-08-26 11:05 [U-Boot] [PATCH] mpc5xxx: Add stub implementation of cache functions Vasili Galka
@ 2014-08-26 19:45 ` Marek Vasut
  2014-08-26 19:48   ` Scott Wood
  2014-09-01 20:53 ` Wolfgang Denk
  1 sibling, 1 reply; 6+ messages in thread
From: Marek Vasut @ 2014-08-26 19:45 UTC (permalink / raw)
  To: u-boot

On Tuesday, August 26, 2014 at 01:05:31 PM, Vasili Galka wrote:
> Some drivers (e.g. net/e1000) reference these functions. So, this
> fixes the build of MVBC_P board.
> 
> I'm not familiar with the MPC5xxx platform, maybe a full
> implementation shall be implemented instead of this stub in the
> future.

Is MPC5xxx cache coherent PPC or is it not ?

> Signed-off-by: Vasili Galka <vvv444@gmail.com>
> Cc: Wolfgang Denk <wd@denx.de>, Marek Vasut <marex@denx.de>

+CC Scott , he can likely clarify .

> ---
>  arch/powerpc/cpu/mpc5xxx/Makefile |    1 +
>  arch/powerpc/cpu/mpc5xxx/cache.c  |   15 +++++++++++++++
>  2 files changed, 16 insertions(+), 0 deletions(-)
>  create mode 100644 arch/powerpc/cpu/mpc5xxx/cache.c
> 
> diff --git a/arch/powerpc/cpu/mpc5xxx/Makefile
> b/arch/powerpc/cpu/mpc5xxx/Makefile index 5c67e1d..d122b29 100644
> --- a/arch/powerpc/cpu/mpc5xxx/Makefile
> +++ b/arch/powerpc/cpu/mpc5xxx/Makefile
> @@ -7,6 +7,7 @@
> 
>  extra-y	= start.o
>  extra-y += traps.o
> +obj-y  += cache.o
>  obj-y  += io.o
>  obj-y  += firmware_sc_task_bestcomm.impl.o
>  obj-y += i2c.o
> diff --git a/arch/powerpc/cpu/mpc5xxx/cache.c
> b/arch/powerpc/cpu/mpc5xxx/cache.c new file mode 100644
> index 0000000..5d674bc
> --- /dev/null
> +++ b/arch/powerpc/cpu/mpc5xxx/cache.c
> @@ -0,0 +1,15 @@
> +/*
> + * This file contains stub implementation of
> + *   invalidate_dcache_range()
> + *   flush_dcache_range()
> + *
> + * SPDX-License-Identifier:	GPL-2.0+
> + */
> +
> +void invalidate_dcache_range(unsigned long start, unsigned long stop)
> +{
> +}
> +
> +void flush_dcache_range(unsigned long start, unsigned long stop)
> +{
> +}

Best regards,
Marek Vasut

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [U-Boot] [PATCH] mpc5xxx: Add stub implementation of cache functions
  2014-08-26 19:45 ` Marek Vasut
@ 2014-08-26 19:48   ` Scott Wood
  2014-08-26 19:56     ` Marek Vasut
  0 siblings, 1 reply; 6+ messages in thread
From: Scott Wood @ 2014-08-26 19:48 UTC (permalink / raw)
  To: u-boot

On Tue, 2014-08-26 at 21:45 +0200, Marek Vasut wrote:
> On Tuesday, August 26, 2014 at 01:05:31 PM, Vasili Galka wrote:
> > Some drivers (e.g. net/e1000) reference these functions. So, this
> > fixes the build of MVBC_P board.
> > 
> > I'm not familiar with the MPC5xxx platform, maybe a full
> > implementation shall be implemented instead of this stub in the
> > future.
> 
> Is MPC5xxx cache coherent PPC or is it not ?
> 
> > Signed-off-by: Vasili Galka <vvv444@gmail.com>
> > Cc: Wolfgang Denk <wd@denx.de>, Marek Vasut <marex@denx.de>
> 
> +CC Scott , he can likely clarify .

MPC5xxx is from a different part of Freescale, so I'm not sure, except
to note that the first link I found by googling "mpc5xxx cache coherent"
is a patch from Wolfgang suggesting that it is:

https://git.linaro.org/?p=boot/u-boot-linaro-stable.git;a=patch;h=8419c013048b1f15f3fa2fc7c0463d860a04ee3e

:-)

-Scott

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [U-Boot] [PATCH] mpc5xxx: Add stub implementation of cache functions
  2014-08-26 19:48   ` Scott Wood
@ 2014-08-26 19:56     ` Marek Vasut
  0 siblings, 0 replies; 6+ messages in thread
From: Marek Vasut @ 2014-08-26 19:56 UTC (permalink / raw)
  To: u-boot

On Tuesday, August 26, 2014 at 09:48:26 PM, Scott Wood wrote:
> On Tue, 2014-08-26 at 21:45 +0200, Marek Vasut wrote:
> > On Tuesday, August 26, 2014 at 01:05:31 PM, Vasili Galka wrote:
> > > Some drivers (e.g. net/e1000) reference these functions. So, this
> > > fixes the build of MVBC_P board.
> > > 
> > > I'm not familiar with the MPC5xxx platform, maybe a full
> > > implementation shall be implemented instead of this stub in the
> > > future.
> > 
> > Is MPC5xxx cache coherent PPC or is it not ?
> > 
> > > Signed-off-by: Vasili Galka <vvv444@gmail.com>
> > > Cc: Wolfgang Denk <wd@denx.de>, Marek Vasut <marex@denx.de>
> > 
> > +CC Scott , he can likely clarify .
> 
> MPC5xxx is from a different part of Freescale, so I'm not sure, except
> to note that the first link I found by googling "mpc5xxx cache coherent"
> is a patch from Wolfgang suggesting that it is:
> 
> https://git.linaro.org/?p=boot/u-boot-linaro-stable.git;a=patch;h=8419c0130
> 48b1f15f3fa2fc7c0463d860a04ee3e

Well OK. Who shall pick this patch up or decide what to do about it ?

Best regards,
Marek Vasut

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [U-Boot] [PATCH] mpc5xxx: Add stub implementation of cache functions
  2014-08-26 11:05 [U-Boot] [PATCH] mpc5xxx: Add stub implementation of cache functions Vasili Galka
  2014-08-26 19:45 ` Marek Vasut
@ 2014-09-01 20:53 ` Wolfgang Denk
  2014-09-02 12:20   ` Tom Rini
  1 sibling, 1 reply; 6+ messages in thread
From: Wolfgang Denk @ 2014-09-01 20:53 UTC (permalink / raw)
  To: u-boot

Dear Vasili Galka,

In message <1409051131-7260-1-git-send-email-vvv444@gmail.com> you wrote:
> Some drivers (e.g. net/e1000) reference these functions. So, this
> fixes the build of MVBC_P board.
> 
> I'm not familiar with the MPC5xxx platform, maybe a full
> implementation shall be implemented instead of this stub in the
> future.
> 
> Signed-off-by: Vasili Galka <vvv444@gmail.com>
> Cc: Wolfgang Denk <wd@denx.de>, Marek Vasut <marex@denx.de>
> ---
>  arch/powerpc/cpu/mpc5xxx/Makefile |    1 +
>  arch/powerpc/cpu/mpc5xxx/cache.c  |   15 +++++++++++++++
>  2 files changed, 16 insertions(+), 0 deletions(-)
>  create mode 100644 arch/powerpc/cpu/mpc5xxx/cache.c

Acked-by: Wolfgang Denk <wd@denx.de>


Tom, can you please pick this up directly?  Thanks!

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: wd at denx.de
"The number  of  Unix  installations  has  grown  to  10,  with  more
expected."    - The Unix Programmer's Manual, 2nd Edition, June, 1972

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [U-Boot] [PATCH] mpc5xxx: Add stub implementation of cache functions
  2014-09-01 20:53 ` Wolfgang Denk
@ 2014-09-02 12:20   ` Tom Rini
  0 siblings, 0 replies; 6+ messages in thread
From: Tom Rini @ 2014-09-02 12:20 UTC (permalink / raw)
  To: u-boot

On Mon, Sep 01, 2014 at 10:53:10PM +0200, Wolfgang Denk wrote:
> Dear Vasili Galka,
> 
> In message <1409051131-7260-1-git-send-email-vvv444@gmail.com> you wrote:
> > Some drivers (e.g. net/e1000) reference these functions. So, this
> > fixes the build of MVBC_P board.
> > 
> > I'm not familiar with the MPC5xxx platform, maybe a full
> > implementation shall be implemented instead of this stub in the
> > future.
> > 
> > Signed-off-by: Vasili Galka <vvv444@gmail.com>
> > Cc: Wolfgang Denk <wd@denx.de>, Marek Vasut <marex@denx.de>
> > ---
> >  arch/powerpc/cpu/mpc5xxx/Makefile |    1 +
> >  arch/powerpc/cpu/mpc5xxx/cache.c  |   15 +++++++++++++++
> >  2 files changed, 16 insertions(+), 0 deletions(-)
> >  create mode 100644 arch/powerpc/cpu/mpc5xxx/cache.c
> 
> Acked-by: Wolfgang Denk <wd@denx.de>
> 
> 
> Tom, can you please pick this up directly?  Thanks!

Applied to u-boot/master, thanks!

-- 
Tom
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^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2014-09-02 12:20 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-08-26 11:05 [U-Boot] [PATCH] mpc5xxx: Add stub implementation of cache functions Vasili Galka
2014-08-26 19:45 ` Marek Vasut
2014-08-26 19:48   ` Scott Wood
2014-08-26 19:56     ` Marek Vasut
2014-09-01 20:53 ` Wolfgang Denk
2014-09-02 12:20   ` Tom Rini

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