Re: [U-Boot] [PATCH] am33xx, spl, siemens: enable debug uart output again

2015-05-14 Thread Simon Glass
Hi Heiko,

On 14 May 2015 at 04:51, Tom Rini tr...@konsulko.com wrote:
 On Thu, May 14, 2015 at 12:37:40PM +0200, Heiko Schocher wrote:
 Hello Tom,

 Am 06.03.2015 08:24, schrieb Heiko Schocher:
 Hello Tom,
 
 Am 05.03.2015 15:50, schrieb Tom Rini:
 On Thu, Mar 05, 2015 at 09:46:50AM +0100, Heiko Schocher wrote:
 Hello Tom,
 
 Am 05.03.2015 07:22, schrieb Heiko Schocher:
 Hello Tom,
 
 Am 04.03.2015 17:40, schrieb Tom Rini:
 On Wed, Mar 04, 2015 at 08:42:58AM +0100, Heiko Schocher wrote:
 Hello Tom,
 
 Am 02.03.2015 14:59, schrieb Tom Rini:
 On Mon, Mar 02, 2015 at 07:56:41AM +0100, Heiko Schocher wrote:
 Hello Simon,
 
 Am 24.02.2015 14:31, schrieb Simon Glass:
 Hi Heiko,
 
 On 23 February 2015 at 23:18, Heiko Schocher h...@denx.de wrote:
 a6b541b090: TI ARMv7: Don't use GD before crt0.S has set it
 
 moves the init of the debug uart at the very end of SPL code.
 Enable it for the siemens board earlier, as they print
 ddr settings ... all debug output before board_init_r()
 is here currently useless. Maybe we must rework this
 globally?
 
 Assuming we are talking about U-Boot proper, the DDR init should
 happen in board_init_f(), specifically dram_init(). so I think this
 code should be updated.
 
 If it is SPL, then DDR init should happen in SPL's board_init_f().
 
 It is in SPL...
 
 sdram_init() is called from:
 
 ./arch/arm/cpu/armv7/am33xx/board.c from s_init() ...
 
 I sent a series a few weeks ago (available at u-boot-dm branch
 spl-working) related to this topic:
 
 http://patchwork.ozlabs.org/patch/438581/
 
 Ah ... Hmm... so ./arch/arm/cpu/armv7/am33xx/board.c needs
 a rework, right?
 
 Is a simple rename s_init() - board_init_f() correct?
 
 Right so, no, we can't just rename s_init to board_init_f.  This is 
 what
 I was talking about in the thread about the function Hans wants to add
 to enable some bits in CP15 on sunxi, iirc.
 
 In short, armv7 has a different set of abstraction hooks than the
 previous ARM cores (armv8 followed what we have for v7) and I'm not
 convinced in the end that it really won us anything.  See
 http://lists.denx.de/pipermail/u-boot/2015-January/202350.html
 
 For today you need to rework the Siemens code to print out the DDR
 values (when desired) in spl_board_init() as we do not, or will not
 shortly, have gd prior to board_init_f running.
 
 Hmm... first I thought, ok, no problem, move the output from the RAM
 parameters to spl_board_init() ... but thats only the half of the
 story ... They read the RAM parameters from an i2c eeprom, and if
 there are errors, they print this errors ... currently this does
 not work, and thats I think the more important case ... and I could
 not move this error printfs to somewhere, because if RAM is not
 working ... there is no later ...
 
 So I have to enable the console early ... maybe I missed something,
 but this worked fine in the past (and I think we should not break
 this, as this is an essential feature).
 
 OK, I missed something too.  I think this gets better now once I merge
 Simon's SPL series as we do all of this from board_init_f() and the
 siemens code should just work again.
 
 Yes, just saw your patch ;-)
 
 If they are in mainline (or do you have them somewhere in a git repo?),
 I test it again on the dxr2 board, thanks!
 
 If I am correct, all needed patches from you are in mainline, just
 tried this on the dxr2 board ... but I still need:
 
 diff --git a/board/siemens/common/board.c b/board/siemens/common/board.c
 index a39cbd0..8724604 100644
 --- a/board/siemens/common/board.c
 +++ b/board/siemens/common/board.c
 @@ -40,6 +40,11 @@ void set_uart_mux_conf(void)
 
   void set_mux_conf_regs(void)
   {
 +   /* enable early the console */
 +   gd-baudrate = CONFIG_BAUDRATE;
 +   serial_init();
 +   gd-have_console = 1;
 +
  /* Initalize the board header */
  enable_i2c0_pin_mux();
  i2c_set_bus_num(0);
 
 to see the console output ...
 
 Yes, if you want console prior to spl_board_init() then you need to do
 that where you are.
 
 
 Ah, ok... so this patch is OK?

 Just found this thread again, as I want to post updates for the am335x
 based siemens boards ... Is this patch [1] Ok, and can get applied?

 Thanks!

 bye,
 Heiko
 [1] Patchwork [U-Boot] am33xx, spl, siemens: enable debug uart output again
 https://patchwork.ozlabs.org/patch/446644/

 Hups... found this patch in patchwork marked as RFC and Delegated
 to me ... ?

 I'll look it over again then, thanks.

It's a bit confusing - am I right in thinking that this is called from
board_early_init_f() in arch/arm/cpu/armv7/am33xx/board.c? That in
turn is called from board_init_f() in the same file?

If so it seems OK, although I wonder if the SPL console setup could
happen in board_early_init_f() or even board_init_f() rather than
being buried so deep? It seems odd that setting up the mux registers
should enable the console, and I doubt people will find it easily.

Regards,
Simon

Re: [U-Boot] [PATCH] am33xx, spl, siemens: enable debug uart output again

2015-05-14 Thread Heiko Schocher

Hello Simon,

Am 14.05.2015 14:46, schrieb Simon Glass:

Hi Heiko,

On 14 May 2015 at 04:51, Tom Rini tr...@konsulko.com wrote:

On Thu, May 14, 2015 at 12:37:40PM +0200, Heiko Schocher wrote:

Hello Tom,

Am 06.03.2015 08:24, schrieb Heiko Schocher:

Hello Tom,

Am 05.03.2015 15:50, schrieb Tom Rini:

On Thu, Mar 05, 2015 at 09:46:50AM +0100, Heiko Schocher wrote:

Hello Tom,

Am 05.03.2015 07:22, schrieb Heiko Schocher:

Hello Tom,

Am 04.03.2015 17:40, schrieb Tom Rini:

On Wed, Mar 04, 2015 at 08:42:58AM +0100, Heiko Schocher wrote:

Hello Tom,

Am 02.03.2015 14:59, schrieb Tom Rini:

On Mon, Mar 02, 2015 at 07:56:41AM +0100, Heiko Schocher wrote:

Hello Simon,

Am 24.02.2015 14:31, schrieb Simon Glass:

Hi Heiko,

On 23 February 2015 at 23:18, Heiko Schocher h...@denx.de wrote:

a6b541b090: TI ARMv7: Don't use GD before crt0.S has set it

moves the init of the debug uart at the very end of SPL code.
Enable it for the siemens board earlier, as they print
ddr settings ... all debug output before board_init_r()
is here currently useless. Maybe we must rework this
globally?


Assuming we are talking about U-Boot proper, the DDR init should
happen in board_init_f(), specifically dram_init(). so I think this
code should be updated.

If it is SPL, then DDR init should happen in SPL's board_init_f().


It is in SPL...

sdram_init() is called from:

./arch/arm/cpu/armv7/am33xx/board.c from s_init() ...


I sent a series a few weeks ago (available at u-boot-dm branch
spl-working) related to this topic:

http://patchwork.ozlabs.org/patch/438581/


Ah ... Hmm... so ./arch/arm/cpu/armv7/am33xx/board.c needs
a rework, right?

Is a simple rename s_init() - board_init_f() correct?


Right so, no, we can't just rename s_init to board_init_f.  This is what
I was talking about in the thread about the function Hans wants to add
to enable some bits in CP15 on sunxi, iirc.

In short, armv7 has a different set of abstraction hooks than the
previous ARM cores (armv8 followed what we have for v7) and I'm not
convinced in the end that it really won us anything.  See
http://lists.denx.de/pipermail/u-boot/2015-January/202350.html

For today you need to rework the Siemens code to print out the DDR
values (when desired) in spl_board_init() as we do not, or will not
shortly, have gd prior to board_init_f running.


Hmm... first I thought, ok, no problem, move the output from the RAM
parameters to spl_board_init() ... but thats only the half of the
story ... They read the RAM parameters from an i2c eeprom, and if
there are errors, they print this errors ... currently this does
not work, and thats I think the more important case ... and I could
not move this error printfs to somewhere, because if RAM is not
working ... there is no later ...

So I have to enable the console early ... maybe I missed something,
but this worked fine in the past (and I think we should not break
this, as this is an essential feature).


OK, I missed something too.  I think this gets better now once I merge
Simon's SPL series as we do all of this from board_init_f() and the
siemens code should just work again.


Yes, just saw your patch ;-)

If they are in mainline (or do you have them somewhere in a git repo?),
I test it again on the dxr2 board, thanks!


If I am correct, all needed patches from you are in mainline, just
tried this on the dxr2 board ... but I still need:

diff --git a/board/siemens/common/board.c b/board/siemens/common/board.c
index a39cbd0..8724604 100644
--- a/board/siemens/common/board.c
+++ b/board/siemens/common/board.c
@@ -40,6 +40,11 @@ void set_uart_mux_conf(void)

  void set_mux_conf_regs(void)
  {
+   /* enable early the console */
+   gd-baudrate = CONFIG_BAUDRATE;
+   serial_init();
+   gd-have_console = 1;
+
 /* Initalize the board header */
 enable_i2c0_pin_mux();
 i2c_set_bus_num(0);

to see the console output ...


Yes, if you want console prior to spl_board_init() then you need to do
that where you are.



Ah, ok... so this patch is OK?


Just found this thread again, as I want to post updates for the am335x
based siemens boards ... Is this patch [1] Ok, and can get applied?

Thanks!

bye,
Heiko
[1] Patchwork [U-Boot] am33xx, spl, siemens: enable debug uart output again
https://patchwork.ozlabs.org/patch/446644/

Hups... found this patch in patchwork marked as RFC and Delegated
to me ... ?


I'll look it over again then, thanks.


It's a bit confusing - am I right in thinking that this is called from
board_early_init_f() in arch/arm/cpu/armv7/am33xx/board.c? That in
turn is called from board_init_f() in the same file?


I think so, yes (Could not currently power on the board, so I look
in it, if I have it again accessable)


If so it seems OK, although I wonder if the SPL console setup could
happen in board_early_init_f() or even board_init_f() rather than
being buried so deep? It seems odd that setting up the mux registers
should enable the console, and I doubt people will find it 

Re: [U-Boot] [PATCH] am33xx, spl, siemens: enable debug uart output again

2015-05-14 Thread Heiko Schocher

Hello Tom,

Am 06.03.2015 08:24, schrieb Heiko Schocher:

Hello Tom,

Am 05.03.2015 15:50, schrieb Tom Rini:

On Thu, Mar 05, 2015 at 09:46:50AM +0100, Heiko Schocher wrote:

Hello Tom,

Am 05.03.2015 07:22, schrieb Heiko Schocher:

Hello Tom,

Am 04.03.2015 17:40, schrieb Tom Rini:

On Wed, Mar 04, 2015 at 08:42:58AM +0100, Heiko Schocher wrote:

Hello Tom,

Am 02.03.2015 14:59, schrieb Tom Rini:

On Mon, Mar 02, 2015 at 07:56:41AM +0100, Heiko Schocher wrote:

Hello Simon,

Am 24.02.2015 14:31, schrieb Simon Glass:

Hi Heiko,

On 23 February 2015 at 23:18, Heiko Schocher h...@denx.de wrote:

a6b541b090: TI ARMv7: Don't use GD before crt0.S has set it

moves the init of the debug uart at the very end of SPL code.
Enable it for the siemens board earlier, as they print
ddr settings ... all debug output before board_init_r()
is here currently useless. Maybe we must rework this
globally?


Assuming we are talking about U-Boot proper, the DDR init should
happen in board_init_f(), specifically dram_init(). so I think this
code should be updated.

If it is SPL, then DDR init should happen in SPL's board_init_f().


It is in SPL...

sdram_init() is called from:

./arch/arm/cpu/armv7/am33xx/board.c from s_init() ...


I sent a series a few weeks ago (available at u-boot-dm branch
spl-working) related to this topic:

http://patchwork.ozlabs.org/patch/438581/


Ah ... Hmm... so ./arch/arm/cpu/armv7/am33xx/board.c needs
a rework, right?

Is a simple rename s_init() - board_init_f() correct?


Right so, no, we can't just rename s_init to board_init_f.  This is what
I was talking about in the thread about the function Hans wants to add
to enable some bits in CP15 on sunxi, iirc.

In short, armv7 has a different set of abstraction hooks than the
previous ARM cores (armv8 followed what we have for v7) and I'm not
convinced in the end that it really won us anything.  See
http://lists.denx.de/pipermail/u-boot/2015-January/202350.html

For today you need to rework the Siemens code to print out the DDR
values (when desired) in spl_board_init() as we do not, or will not
shortly, have gd prior to board_init_f running.


Hmm... first I thought, ok, no problem, move the output from the RAM
parameters to spl_board_init() ... but thats only the half of the
story ... They read the RAM parameters from an i2c eeprom, and if
there are errors, they print this errors ... currently this does
not work, and thats I think the more important case ... and I could
not move this error printfs to somewhere, because if RAM is not
working ... there is no later ...

So I have to enable the console early ... maybe I missed something,
but this worked fine in the past (and I think we should not break
this, as this is an essential feature).


OK, I missed something too.  I think this gets better now once I merge
Simon's SPL series as we do all of this from board_init_f() and the
siemens code should just work again.


Yes, just saw your patch ;-)

If they are in mainline (or do you have them somewhere in a git repo?),
I test it again on the dxr2 board, thanks!


If I am correct, all needed patches from you are in mainline, just
tried this on the dxr2 board ... but I still need:

diff --git a/board/siemens/common/board.c b/board/siemens/common/board.c
index a39cbd0..8724604 100644
--- a/board/siemens/common/board.c
+++ b/board/siemens/common/board.c
@@ -40,6 +40,11 @@ void set_uart_mux_conf(void)

  void set_mux_conf_regs(void)
  {
+   /* enable early the console */
+   gd-baudrate = CONFIG_BAUDRATE;
+   serial_init();
+   gd-have_console = 1;
+
 /* Initalize the board header */
 enable_i2c0_pin_mux();
 i2c_set_bus_num(0);

to see the console output ...


Yes, if you want console prior to spl_board_init() then you need to do
that where you are.



Ah, ok... so this patch is OK?


Just found this thread again, as I want to post updates for the am335x
based siemens boards ... Is this patch [1] Ok, and can get applied?

Thanks!

bye,
Heiko
[1] Patchwork [U-Boot] am33xx, spl, siemens: enable debug uart output again
https://patchwork.ozlabs.org/patch/446644/

Hups... found this patch in patchwork marked as RFC and Delegated
to me ... ?
--
DENX Software Engineering GmbH,  Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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Re: [U-Boot] [PATCH] am33xx, spl, siemens: enable debug uart output again

2015-05-14 Thread Tom Rini
On Thu, May 14, 2015 at 12:37:40PM +0200, Heiko Schocher wrote:
 Hello Tom,
 
 Am 06.03.2015 08:24, schrieb Heiko Schocher:
 Hello Tom,
 
 Am 05.03.2015 15:50, schrieb Tom Rini:
 On Thu, Mar 05, 2015 at 09:46:50AM +0100, Heiko Schocher wrote:
 Hello Tom,
 
 Am 05.03.2015 07:22, schrieb Heiko Schocher:
 Hello Tom,
 
 Am 04.03.2015 17:40, schrieb Tom Rini:
 On Wed, Mar 04, 2015 at 08:42:58AM +0100, Heiko Schocher wrote:
 Hello Tom,
 
 Am 02.03.2015 14:59, schrieb Tom Rini:
 On Mon, Mar 02, 2015 at 07:56:41AM +0100, Heiko Schocher wrote:
 Hello Simon,
 
 Am 24.02.2015 14:31, schrieb Simon Glass:
 Hi Heiko,
 
 On 23 February 2015 at 23:18, Heiko Schocher h...@denx.de wrote:
 a6b541b090: TI ARMv7: Don't use GD before crt0.S has set it
 
 moves the init of the debug uart at the very end of SPL code.
 Enable it for the siemens board earlier, as they print
 ddr settings ... all debug output before board_init_r()
 is here currently useless. Maybe we must rework this
 globally?
 
 Assuming we are talking about U-Boot proper, the DDR init should
 happen in board_init_f(), specifically dram_init(). so I think this
 code should be updated.
 
 If it is SPL, then DDR init should happen in SPL's board_init_f().
 
 It is in SPL...
 
 sdram_init() is called from:
 
 ./arch/arm/cpu/armv7/am33xx/board.c from s_init() ...
 
 I sent a series a few weeks ago (available at u-boot-dm branch
 spl-working) related to this topic:
 
 http://patchwork.ozlabs.org/patch/438581/
 
 Ah ... Hmm... so ./arch/arm/cpu/armv7/am33xx/board.c needs
 a rework, right?
 
 Is a simple rename s_init() - board_init_f() correct?
 
 Right so, no, we can't just rename s_init to board_init_f.  This is 
 what
 I was talking about in the thread about the function Hans wants to add
 to enable some bits in CP15 on sunxi, iirc.
 
 In short, armv7 has a different set of abstraction hooks than the
 previous ARM cores (armv8 followed what we have for v7) and I'm not
 convinced in the end that it really won us anything.  See
 http://lists.denx.de/pipermail/u-boot/2015-January/202350.html
 
 For today you need to rework the Siemens code to print out the DDR
 values (when desired) in spl_board_init() as we do not, or will not
 shortly, have gd prior to board_init_f running.
 
 Hmm... first I thought, ok, no problem, move the output from the RAM
 parameters to spl_board_init() ... but thats only the half of the
 story ... They read the RAM parameters from an i2c eeprom, and if
 there are errors, they print this errors ... currently this does
 not work, and thats I think the more important case ... and I could
 not move this error printfs to somewhere, because if RAM is not
 working ... there is no later ...
 
 So I have to enable the console early ... maybe I missed something,
 but this worked fine in the past (and I think we should not break
 this, as this is an essential feature).
 
 OK, I missed something too.  I think this gets better now once I merge
 Simon's SPL series as we do all of this from board_init_f() and the
 siemens code should just work again.
 
 Yes, just saw your patch ;-)
 
 If they are in mainline (or do you have them somewhere in a git repo?),
 I test it again on the dxr2 board, thanks!
 
 If I am correct, all needed patches from you are in mainline, just
 tried this on the dxr2 board ... but I still need:
 
 diff --git a/board/siemens/common/board.c b/board/siemens/common/board.c
 index a39cbd0..8724604 100644
 --- a/board/siemens/common/board.c
 +++ b/board/siemens/common/board.c
 @@ -40,6 +40,11 @@ void set_uart_mux_conf(void)
 
   void set_mux_conf_regs(void)
   {
 +   /* enable early the console */
 +   gd-baudrate = CONFIG_BAUDRATE;
 +   serial_init();
 +   gd-have_console = 1;
 +
  /* Initalize the board header */
  enable_i2c0_pin_mux();
  i2c_set_bus_num(0);
 
 to see the console output ...
 
 Yes, if you want console prior to spl_board_init() then you need to do
 that where you are.
 
 
 Ah, ok... so this patch is OK?
 
 Just found this thread again, as I want to post updates for the am335x
 based siemens boards ... Is this patch [1] Ok, and can get applied?
 
 Thanks!
 
 bye,
 Heiko
 [1] Patchwork [U-Boot] am33xx, spl, siemens: enable debug uart output again
 https://patchwork.ozlabs.org/patch/446644/
 
 Hups... found this patch in patchwork marked as RFC and Delegated
 to me ... ?

I'll look it over again then, thanks.

-- 
Tom


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Re: [U-Boot] [PATCH] am33xx, spl, siemens: enable debug uart output again

2015-03-06 Thread Tom Rini
On Fri, Mar 06, 2015 at 08:24:47AM +0100, Heiko Schocher wrote:
 Hello Tom,
 
 Am 05.03.2015 15:50, schrieb Tom Rini:
 On Thu, Mar 05, 2015 at 09:46:50AM +0100, Heiko Schocher wrote:
 Hello Tom,
 
 Am 05.03.2015 07:22, schrieb Heiko Schocher:
 Hello Tom,
 
 Am 04.03.2015 17:40, schrieb Tom Rini:
 On Wed, Mar 04, 2015 at 08:42:58AM +0100, Heiko Schocher wrote:
 Hello Tom,
 
 Am 02.03.2015 14:59, schrieb Tom Rini:
 On Mon, Mar 02, 2015 at 07:56:41AM +0100, Heiko Schocher wrote:
 Hello Simon,
 
 Am 24.02.2015 14:31, schrieb Simon Glass:
 Hi Heiko,
 
 On 23 February 2015 at 23:18, Heiko Schocher h...@denx.de wrote:
 a6b541b090: TI ARMv7: Don't use GD before crt0.S has set it
 
 moves the init of the debug uart at the very end of SPL code.
 Enable it for the siemens board earlier, as they print
 ddr settings ... all debug output before board_init_r()
 is here currently useless. Maybe we must rework this
 globally?
 
 Assuming we are talking about U-Boot proper, the DDR init should
 happen in board_init_f(), specifically dram_init(). so I think this
 code should be updated.
 
 If it is SPL, then DDR init should happen in SPL's board_init_f().
 
 It is in SPL...
 
 sdram_init() is called from:
 
 ./arch/arm/cpu/armv7/am33xx/board.c from s_init() ...
 
 I sent a series a few weeks ago (available at u-boot-dm branch
 spl-working) related to this topic:
 
 http://patchwork.ozlabs.org/patch/438581/
 
 Ah ... Hmm... so ./arch/arm/cpu/armv7/am33xx/board.c needs
 a rework, right?
 
 Is a simple rename s_init() - board_init_f() correct?
 
 Right so, no, we can't just rename s_init to board_init_f.  This is what
 I was talking about in the thread about the function Hans wants to add
 to enable some bits in CP15 on sunxi, iirc.
 
 In short, armv7 has a different set of abstraction hooks than the
 previous ARM cores (armv8 followed what we have for v7) and I'm not
 convinced in the end that it really won us anything.  See
 http://lists.denx.de/pipermail/u-boot/2015-January/202350.html
 
 For today you need to rework the Siemens code to print out the DDR
 values (when desired) in spl_board_init() as we do not, or will not
 shortly, have gd prior to board_init_f running.
 
 Hmm... first I thought, ok, no problem, move the output from the RAM
 parameters to spl_board_init() ... but thats only the half of the
 story ... They read the RAM parameters from an i2c eeprom, and if
 there are errors, they print this errors ... currently this does
 not work, and thats I think the more important case ... and I could
 not move this error printfs to somewhere, because if RAM is not
 working ... there is no later ...
 
 So I have to enable the console early ... maybe I missed something,
 but this worked fine in the past (and I think we should not break
 this, as this is an essential feature).
 
 OK, I missed something too.  I think this gets better now once I merge
 Simon's SPL series as we do all of this from board_init_f() and the
 siemens code should just work again.
 
 Yes, just saw your patch ;-)
 
 If they are in mainline (or do you have them somewhere in a git repo?),
 I test it again on the dxr2 board, thanks!
 
 If I am correct, all needed patches from you are in mainline, just
 tried this on the dxr2 board ... but I still need:
 
 diff --git a/board/siemens/common/board.c b/board/siemens/common/board.c
 index a39cbd0..8724604 100644
 --- a/board/siemens/common/board.c
 +++ b/board/siemens/common/board.c
 @@ -40,6 +40,11 @@ void set_uart_mux_conf(void)
 
   void set_mux_conf_regs(void)
   {
 +   /* enable early the console */
 +   gd-baudrate = CONFIG_BAUDRATE;
 +   serial_init();
 +   gd-have_console = 1;
 +
  /* Initalize the board header */
  enable_i2c0_pin_mux();
  i2c_set_bus_num(0);
 
 to see the console output ...
 
 Yes, if you want console prior to spl_board_init() then you need to do
 that where you are.
 
 
 Ah, ok... so this patch is OK?

If you must print out the DDR timings, yes, this is normal.

-- 
Tom


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Re: [U-Boot] [PATCH] am33xx, spl, siemens: enable debug uart output again

2015-03-05 Thread Heiko Schocher

Hello Tom,

Am 05.03.2015 07:22, schrieb Heiko Schocher:

Hello Tom,

Am 04.03.2015 17:40, schrieb Tom Rini:

On Wed, Mar 04, 2015 at 08:42:58AM +0100, Heiko Schocher wrote:

Hello Tom,

Am 02.03.2015 14:59, schrieb Tom Rini:

On Mon, Mar 02, 2015 at 07:56:41AM +0100, Heiko Schocher wrote:

Hello Simon,

Am 24.02.2015 14:31, schrieb Simon Glass:

Hi Heiko,

On 23 February 2015 at 23:18, Heiko Schocher h...@denx.de wrote:

a6b541b090: TI ARMv7: Don't use GD before crt0.S has set it

moves the init of the debug uart at the very end of SPL code.
Enable it for the siemens board earlier, as they print
ddr settings ... all debug output before board_init_r()
is here currently useless. Maybe we must rework this
globally?


Assuming we are talking about U-Boot proper, the DDR init should
happen in board_init_f(), specifically dram_init(). so I think this
code should be updated.

If it is SPL, then DDR init should happen in SPL's board_init_f().


It is in SPL...

sdram_init() is called from:

./arch/arm/cpu/armv7/am33xx/board.c from s_init() ...


I sent a series a few weeks ago (available at u-boot-dm branch
spl-working) related to this topic:

http://patchwork.ozlabs.org/patch/438581/


Ah ... Hmm... so ./arch/arm/cpu/armv7/am33xx/board.c needs
a rework, right?

Is a simple rename s_init() - board_init_f() correct?


Right so, no, we can't just rename s_init to board_init_f.  This is what
I was talking about in the thread about the function Hans wants to add
to enable some bits in CP15 on sunxi, iirc.

In short, armv7 has a different set of abstraction hooks than the
previous ARM cores (armv8 followed what we have for v7) and I'm not
convinced in the end that it really won us anything.  See
http://lists.denx.de/pipermail/u-boot/2015-January/202350.html

For today you need to rework the Siemens code to print out the DDR
values (when desired) in spl_board_init() as we do not, or will not
shortly, have gd prior to board_init_f running.


Hmm... first I thought, ok, no problem, move the output from the RAM
parameters to spl_board_init() ... but thats only the half of the
story ... They read the RAM parameters from an i2c eeprom, and if
there are errors, they print this errors ... currently this does
not work, and thats I think the more important case ... and I could
not move this error printfs to somewhere, because if RAM is not
working ... there is no later ...

So I have to enable the console early ... maybe I missed something,
but this worked fine in the past (and I think we should not break
this, as this is an essential feature).


OK, I missed something too.  I think this gets better now once I merge
Simon's SPL series as we do all of this from board_init_f() and the
siemens code should just work again.


Yes, just saw your patch ;-)

If they are in mainline (or do you have them somewhere in a git repo?),
I test it again on the dxr2 board, thanks!


If I am correct, all needed patches from you are in mainline, just
tried this on the dxr2 board ... but I still need:

diff --git a/board/siemens/common/board.c b/board/siemens/common/board.c
index a39cbd0..8724604 100644
--- a/board/siemens/common/board.c
+++ b/board/siemens/common/board.c
@@ -40,6 +40,11 @@ void set_uart_mux_conf(void)

 void set_mux_conf_regs(void)
 {
+   /* enable early the console */
+   gd-baudrate = CONFIG_BAUDRATE;
+   serial_init();
+   gd-have_console = 1;
+
/* Initalize the board header */
enable_i2c0_pin_mux();
i2c_set_bus_num(0);

to see the console output ...

bye,
Heiko
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HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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Re: [U-Boot] [PATCH] am33xx, spl, siemens: enable debug uart output again

2015-03-05 Thread Tom Rini
On Thu, Mar 05, 2015 at 09:46:50AM +0100, Heiko Schocher wrote:
 Hello Tom,
 
 Am 05.03.2015 07:22, schrieb Heiko Schocher:
 Hello Tom,
 
 Am 04.03.2015 17:40, schrieb Tom Rini:
 On Wed, Mar 04, 2015 at 08:42:58AM +0100, Heiko Schocher wrote:
 Hello Tom,
 
 Am 02.03.2015 14:59, schrieb Tom Rini:
 On Mon, Mar 02, 2015 at 07:56:41AM +0100, Heiko Schocher wrote:
 Hello Simon,
 
 Am 24.02.2015 14:31, schrieb Simon Glass:
 Hi Heiko,
 
 On 23 February 2015 at 23:18, Heiko Schocher h...@denx.de wrote:
 a6b541b090: TI ARMv7: Don't use GD before crt0.S has set it
 
 moves the init of the debug uart at the very end of SPL code.
 Enable it for the siemens board earlier, as they print
 ddr settings ... all debug output before board_init_r()
 is here currently useless. Maybe we must rework this
 globally?
 
 Assuming we are talking about U-Boot proper, the DDR init should
 happen in board_init_f(), specifically dram_init(). so I think this
 code should be updated.
 
 If it is SPL, then DDR init should happen in SPL's board_init_f().
 
 It is in SPL...
 
 sdram_init() is called from:
 
 ./arch/arm/cpu/armv7/am33xx/board.c from s_init() ...
 
 I sent a series a few weeks ago (available at u-boot-dm branch
 spl-working) related to this topic:
 
 http://patchwork.ozlabs.org/patch/438581/
 
 Ah ... Hmm... so ./arch/arm/cpu/armv7/am33xx/board.c needs
 a rework, right?
 
 Is a simple rename s_init() - board_init_f() correct?
 
 Right so, no, we can't just rename s_init to board_init_f.  This is what
 I was talking about in the thread about the function Hans wants to add
 to enable some bits in CP15 on sunxi, iirc.
 
 In short, armv7 has a different set of abstraction hooks than the
 previous ARM cores (armv8 followed what we have for v7) and I'm not
 convinced in the end that it really won us anything.  See
 http://lists.denx.de/pipermail/u-boot/2015-January/202350.html
 
 For today you need to rework the Siemens code to print out the DDR
 values (when desired) in spl_board_init() as we do not, or will not
 shortly, have gd prior to board_init_f running.
 
 Hmm... first I thought, ok, no problem, move the output from the RAM
 parameters to spl_board_init() ... but thats only the half of the
 story ... They read the RAM parameters from an i2c eeprom, and if
 there are errors, they print this errors ... currently this does
 not work, and thats I think the more important case ... and I could
 not move this error printfs to somewhere, because if RAM is not
 working ... there is no later ...
 
 So I have to enable the console early ... maybe I missed something,
 but this worked fine in the past (and I think we should not break
 this, as this is an essential feature).
 
 OK, I missed something too.  I think this gets better now once I merge
 Simon's SPL series as we do all of this from board_init_f() and the
 siemens code should just work again.
 
 Yes, just saw your patch ;-)
 
 If they are in mainline (or do you have them somewhere in a git repo?),
 I test it again on the dxr2 board, thanks!
 
 If I am correct, all needed patches from you are in mainline, just
 tried this on the dxr2 board ... but I still need:
 
 diff --git a/board/siemens/common/board.c b/board/siemens/common/board.c
 index a39cbd0..8724604 100644
 --- a/board/siemens/common/board.c
 +++ b/board/siemens/common/board.c
 @@ -40,6 +40,11 @@ void set_uart_mux_conf(void)
 
  void set_mux_conf_regs(void)
  {
 +   /* enable early the console */
 +   gd-baudrate = CONFIG_BAUDRATE;
 +   serial_init();
 +   gd-have_console = 1;
 +
 /* Initalize the board header */
 enable_i2c0_pin_mux();
 i2c_set_bus_num(0);
 
 to see the console output ...

Yes, if you want console prior to spl_board_init() then you need to do
that where you are.

-- 
Tom


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Re: [U-Boot] [PATCH] am33xx, spl, siemens: enable debug uart output again

2015-03-05 Thread Heiko Schocher

Hello Tom,

Am 05.03.2015 15:50, schrieb Tom Rini:

On Thu, Mar 05, 2015 at 09:46:50AM +0100, Heiko Schocher wrote:

Hello Tom,

Am 05.03.2015 07:22, schrieb Heiko Schocher:

Hello Tom,

Am 04.03.2015 17:40, schrieb Tom Rini:

On Wed, Mar 04, 2015 at 08:42:58AM +0100, Heiko Schocher wrote:

Hello Tom,

Am 02.03.2015 14:59, schrieb Tom Rini:

On Mon, Mar 02, 2015 at 07:56:41AM +0100, Heiko Schocher wrote:

Hello Simon,

Am 24.02.2015 14:31, schrieb Simon Glass:

Hi Heiko,

On 23 February 2015 at 23:18, Heiko Schocher h...@denx.de wrote:

a6b541b090: TI ARMv7: Don't use GD before crt0.S has set it

moves the init of the debug uart at the very end of SPL code.
Enable it for the siemens board earlier, as they print
ddr settings ... all debug output before board_init_r()
is here currently useless. Maybe we must rework this
globally?


Assuming we are talking about U-Boot proper, the DDR init should
happen in board_init_f(), specifically dram_init(). so I think this
code should be updated.

If it is SPL, then DDR init should happen in SPL's board_init_f().


It is in SPL...

sdram_init() is called from:

./arch/arm/cpu/armv7/am33xx/board.c from s_init() ...


I sent a series a few weeks ago (available at u-boot-dm branch
spl-working) related to this topic:

http://patchwork.ozlabs.org/patch/438581/


Ah ... Hmm... so ./arch/arm/cpu/armv7/am33xx/board.c needs
a rework, right?

Is a simple rename s_init() - board_init_f() correct?


Right so, no, we can't just rename s_init to board_init_f.  This is what
I was talking about in the thread about the function Hans wants to add
to enable some bits in CP15 on sunxi, iirc.

In short, armv7 has a different set of abstraction hooks than the
previous ARM cores (armv8 followed what we have for v7) and I'm not
convinced in the end that it really won us anything.  See
http://lists.denx.de/pipermail/u-boot/2015-January/202350.html

For today you need to rework the Siemens code to print out the DDR
values (when desired) in spl_board_init() as we do not, or will not
shortly, have gd prior to board_init_f running.


Hmm... first I thought, ok, no problem, move the output from the RAM
parameters to spl_board_init() ... but thats only the half of the
story ... They read the RAM parameters from an i2c eeprom, and if
there are errors, they print this errors ... currently this does
not work, and thats I think the more important case ... and I could
not move this error printfs to somewhere, because if RAM is not
working ... there is no later ...

So I have to enable the console early ... maybe I missed something,
but this worked fine in the past (and I think we should not break
this, as this is an essential feature).


OK, I missed something too.  I think this gets better now once I merge
Simon's SPL series as we do all of this from board_init_f() and the
siemens code should just work again.


Yes, just saw your patch ;-)

If they are in mainline (or do you have them somewhere in a git repo?),
I test it again on the dxr2 board, thanks!


If I am correct, all needed patches from you are in mainline, just
tried this on the dxr2 board ... but I still need:

diff --git a/board/siemens/common/board.c b/board/siemens/common/board.c
index a39cbd0..8724604 100644
--- a/board/siemens/common/board.c
+++ b/board/siemens/common/board.c
@@ -40,6 +40,11 @@ void set_uart_mux_conf(void)

  void set_mux_conf_regs(void)
  {
+   /* enable early the console */
+   gd-baudrate = CONFIG_BAUDRATE;
+   serial_init();
+   gd-have_console = 1;
+
 /* Initalize the board header */
 enable_i2c0_pin_mux();
 i2c_set_bus_num(0);

to see the console output ...


Yes, if you want console prior to spl_board_init() then you need to do
that where you are.



Ah, ok... so this patch is OK?

bye,
Heiko
--
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HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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Re: [U-Boot] [PATCH] am33xx, spl, siemens: enable debug uart output again

2015-03-04 Thread Tom Rini
On Wed, Mar 04, 2015 at 08:42:58AM +0100, Heiko Schocher wrote:
 Hello Tom,
 
 Am 02.03.2015 14:59, schrieb Tom Rini:
 On Mon, Mar 02, 2015 at 07:56:41AM +0100, Heiko Schocher wrote:
 Hello Simon,
 
 Am 24.02.2015 14:31, schrieb Simon Glass:
 Hi Heiko,
 
 On 23 February 2015 at 23:18, Heiko Schocher h...@denx.de wrote:
 a6b541b090: TI ARMv7: Don't use GD before crt0.S has set it
 
 moves the init of the debug uart at the very end of SPL code.
 Enable it for the siemens board earlier, as they print
 ddr settings ... all debug output before board_init_r()
 is here currently useless. Maybe we must rework this
 globally?
 
 Assuming we are talking about U-Boot proper, the DDR init should
 happen in board_init_f(), specifically dram_init(). so I think this
 code should be updated.
 
 If it is SPL, then DDR init should happen in SPL's board_init_f().
 
 It is in SPL...
 
 sdram_init() is called from:
 
 ./arch/arm/cpu/armv7/am33xx/board.c from s_init() ...
 
 I sent a series a few weeks ago (available at u-boot-dm branch
 spl-working) related to this topic:
 
 http://patchwork.ozlabs.org/patch/438581/
 
 Ah ... Hmm... so ./arch/arm/cpu/armv7/am33xx/board.c needs
 a rework, right?
 
 Is a simple rename s_init() - board_init_f() correct?
 
 Right so, no, we can't just rename s_init to board_init_f.  This is what
 I was talking about in the thread about the function Hans wants to add
 to enable some bits in CP15 on sunxi, iirc.
 
 In short, armv7 has a different set of abstraction hooks than the
 previous ARM cores (armv8 followed what we have for v7) and I'm not
 convinced in the end that it really won us anything.  See
 http://lists.denx.de/pipermail/u-boot/2015-January/202350.html
 
 For today you need to rework the Siemens code to print out the DDR
 values (when desired) in spl_board_init() as we do not, or will not
 shortly, have gd prior to board_init_f running.
 
 Hmm... first I thought, ok, no problem, move the output from the RAM
 parameters to spl_board_init() ... but thats only the half of the
 story ... They read the RAM parameters from an i2c eeprom, and if
 there are errors, they print this errors ... currently this does
 not work, and thats I think the more important case ... and I could
 not move this error printfs to somewhere, because if RAM is not
 working ... there is no later ...
 
 So I have to enable the console early ... maybe I missed something,
 but this worked fine in the past (and I think we should not break
 this, as this is an essential feature).

OK, I missed something too.  I think this gets better now once I merge
Simon's SPL series as we do all of this from board_init_f() and the
siemens code should just work again.

 If I look into arch/arm/cpu/armv7/am33xx/board.c s_init()
 there gets the console also in the case:
 
 #if defined(CONFIG_NOR_BOOT) || defined(CONFIG_QSPI_BOOT)
 
 very early enabled ... is this buggy?

Digging out one of the QSPI bootable boards (which I only _think_ I
have) or setting up and confirming the beaglebone white + NOR cape I
have still functions at the HW level and then re-testing on mainline are
on my list as yes, I'm a bit worried these paths might be broken again.

-- 
Tom


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Re: [U-Boot] [PATCH] am33xx, spl, siemens: enable debug uart output again

2015-03-04 Thread Heiko Schocher

Hello Tom,

Am 04.03.2015 17:40, schrieb Tom Rini:

On Wed, Mar 04, 2015 at 08:42:58AM +0100, Heiko Schocher wrote:

Hello Tom,

Am 02.03.2015 14:59, schrieb Tom Rini:

On Mon, Mar 02, 2015 at 07:56:41AM +0100, Heiko Schocher wrote:

Hello Simon,

Am 24.02.2015 14:31, schrieb Simon Glass:

Hi Heiko,

On 23 February 2015 at 23:18, Heiko Schocher h...@denx.de wrote:

a6b541b090: TI ARMv7: Don't use GD before crt0.S has set it

moves the init of the debug uart at the very end of SPL code.
Enable it for the siemens board earlier, as they print
ddr settings ... all debug output before board_init_r()
is here currently useless. Maybe we must rework this
globally?


Assuming we are talking about U-Boot proper, the DDR init should
happen in board_init_f(), specifically dram_init(). so I think this
code should be updated.

If it is SPL, then DDR init should happen in SPL's board_init_f().


It is in SPL...

sdram_init() is called from:

./arch/arm/cpu/armv7/am33xx/board.c from s_init() ...


I sent a series a few weeks ago (available at u-boot-dm branch
spl-working) related to this topic:

http://patchwork.ozlabs.org/patch/438581/


Ah ... Hmm... so ./arch/arm/cpu/armv7/am33xx/board.c needs
a rework, right?

Is a simple rename s_init() - board_init_f() correct?


Right so, no, we can't just rename s_init to board_init_f.  This is what
I was talking about in the thread about the function Hans wants to add
to enable some bits in CP15 on sunxi, iirc.

In short, armv7 has a different set of abstraction hooks than the
previous ARM cores (armv8 followed what we have for v7) and I'm not
convinced in the end that it really won us anything.  See
http://lists.denx.de/pipermail/u-boot/2015-January/202350.html

For today you need to rework the Siemens code to print out the DDR
values (when desired) in spl_board_init() as we do not, or will not
shortly, have gd prior to board_init_f running.


Hmm... first I thought, ok, no problem, move the output from the RAM
parameters to spl_board_init() ... but thats only the half of the
story ... They read the RAM parameters from an i2c eeprom, and if
there are errors, they print this errors ... currently this does
not work, and thats I think the more important case ... and I could
not move this error printfs to somewhere, because if RAM is not
working ... there is no later ...

So I have to enable the console early ... maybe I missed something,
but this worked fine in the past (and I think we should not break
this, as this is an essential feature).


OK, I missed something too.  I think this gets better now once I merge
Simon's SPL series as we do all of this from board_init_f() and the
siemens code should just work again.


Yes, just saw your patch ;-)

If they are in mainline (or do you have them somewhere in a git repo?),
I test it again on the dxr2 board, thanks!


If I look into arch/arm/cpu/armv7/am33xx/board.c s_init()
there gets the console also in the case:

#if defined(CONFIG_NOR_BOOT) || defined(CONFIG_QSPI_BOOT)

very early enabled ... is this buggy?


Digging out one of the QSPI bootable boards (which I only _think_ I
have) or setting up and confirming the beaglebone white + NOR cape I
have still functions at the HW level and then re-testing on mainline are
on my list as yes, I'm a bit worried these paths might be broken again.



Thanks for the info!

bye,
Heiko
--
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HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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Re: [U-Boot] [PATCH] am33xx, spl, siemens: enable debug uart output again

2015-03-03 Thread Heiko Schocher

Hello Tom,

Am 02.03.2015 14:59, schrieb Tom Rini:

On Mon, Mar 02, 2015 at 07:56:41AM +0100, Heiko Schocher wrote:

Hello Simon,

Am 24.02.2015 14:31, schrieb Simon Glass:

Hi Heiko,

On 23 February 2015 at 23:18, Heiko Schocher h...@denx.de wrote:

a6b541b090: TI ARMv7: Don't use GD before crt0.S has set it

moves the init of the debug uart at the very end of SPL code.
Enable it for the siemens board earlier, as they print
ddr settings ... all debug output before board_init_r()
is here currently useless. Maybe we must rework this
globally?


Assuming we are talking about U-Boot proper, the DDR init should
happen in board_init_f(), specifically dram_init(). so I think this
code should be updated.

If it is SPL, then DDR init should happen in SPL's board_init_f().


It is in SPL...

sdram_init() is called from:

./arch/arm/cpu/armv7/am33xx/board.c from s_init() ...


I sent a series a few weeks ago (available at u-boot-dm branch
spl-working) related to this topic:

http://patchwork.ozlabs.org/patch/438581/


Ah ... Hmm... so ./arch/arm/cpu/armv7/am33xx/board.c needs
a rework, right?

Is a simple rename s_init() - board_init_f() correct?


Right so, no, we can't just rename s_init to board_init_f.  This is what
I was talking about in the thread about the function Hans wants to add
to enable some bits in CP15 on sunxi, iirc.

In short, armv7 has a different set of abstraction hooks than the
previous ARM cores (armv8 followed what we have for v7) and I'm not
convinced in the end that it really won us anything.  See
http://lists.denx.de/pipermail/u-boot/2015-January/202350.html

For today you need to rework the Siemens code to print out the DDR
values (when desired) in spl_board_init() as we do not, or will not
shortly, have gd prior to board_init_f running.


Hmm... first I thought, ok, no problem, move the output from the RAM
parameters to spl_board_init() ... but thats only the half of the
story ... They read the RAM parameters from an i2c eeprom, and if
there are errors, they print this errors ... currently this does
not work, and thats I think the more important case ... and I could
not move this error printfs to somewhere, because if RAM is not
working ... there is no later ...

So I have to enable the console early ... maybe I missed something,
but this worked fine in the past (and I think we should not break
this, as this is an essential feature).

If I look into arch/arm/cpu/armv7/am33xx/board.c s_init()
there gets the console also in the case:

#if defined(CONFIG_NOR_BOOT) || defined(CONFIG_QSPI_BOOT)

very early enabled ... is this buggy?

bye,
Heiko
--
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HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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Re: [U-Boot] [PATCH] am33xx, spl, siemens: enable debug uart output again

2015-03-02 Thread Tom Rini
On Mon, Mar 02, 2015 at 07:56:41AM +0100, Heiko Schocher wrote:
 Hello Simon,
 
 Am 24.02.2015 14:31, schrieb Simon Glass:
 Hi Heiko,
 
 On 23 February 2015 at 23:18, Heiko Schocher h...@denx.de wrote:
 a6b541b090: TI ARMv7: Don't use GD before crt0.S has set it
 
 moves the init of the debug uart at the very end of SPL code.
 Enable it for the siemens board earlier, as they print
 ddr settings ... all debug output before board_init_r()
 is here currently useless. Maybe we must rework this
 globally?
 
 Assuming we are talking about U-Boot proper, the DDR init should
 happen in board_init_f(), specifically dram_init(). so I think this
 code should be updated.
 
 If it is SPL, then DDR init should happen in SPL's board_init_f().
 
 It is in SPL...
 
 sdram_init() is called from:
 
 ./arch/arm/cpu/armv7/am33xx/board.c from s_init() ...
 
 I sent a series a few weeks ago (available at u-boot-dm branch
 spl-working) related to this topic:
 
 http://patchwork.ozlabs.org/patch/438581/
 
 Ah ... Hmm... so ./arch/arm/cpu/armv7/am33xx/board.c needs
 a rework, right?
 
 Is a simple rename s_init() - board_init_f() correct?

Right so, no, we can't just rename s_init to board_init_f.  This is what
I was talking about in the thread about the function Hans wants to add
to enable some bits in CP15 on sunxi, iirc.

In short, armv7 has a different set of abstraction hooks than the
previous ARM cores (armv8 followed what we have for v7) and I'm not
convinced in the end that it really won us anything.  See
http://lists.denx.de/pipermail/u-boot/2015-January/202350.html

For today you need to rework the Siemens code to print out the DDR
values (when desired) in spl_board_init() as we do not, or will not
shortly, have gd prior to board_init_f running.

-- 
Tom


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Re: [U-Boot] [PATCH] am33xx, spl, siemens: enable debug uart output again

2015-03-01 Thread Heiko Schocher

Hello Simon,

Am 24.02.2015 14:31, schrieb Simon Glass:

Hi Heiko,

On 23 February 2015 at 23:18, Heiko Schocher h...@denx.de wrote:

a6b541b090: TI ARMv7: Don't use GD before crt0.S has set it

moves the init of the debug uart at the very end of SPL code.
Enable it for the siemens board earlier, as they print
ddr settings ... all debug output before board_init_r()
is here currently useless. Maybe we must rework this
globally?


Assuming we are talking about U-Boot proper, the DDR init should
happen in board_init_f(), specifically dram_init(). so I think this
code should be updated.

If it is SPL, then DDR init should happen in SPL's board_init_f().


It is in SPL...

sdram_init() is called from:

./arch/arm/cpu/armv7/am33xx/board.c from s_init() ...


I sent a series a few weeks ago (available at u-boot-dm branch
spl-working) related to this topic:

http://patchwork.ozlabs.org/patch/438581/


Ah ... Hmm... so ./arch/arm/cpu/armv7/am33xx/board.c needs
a rework, right?

Is a simple rename s_init() - board_init_f() correct?

@Tom: Could you help here?

bye,
Heiko

Signed-off-by: Heiko Schocher h...@denx.de
---

  board/siemens/common/board.c | 5 +
  1 file changed, 5 insertions(+)

diff --git a/board/siemens/common/board.c b/board/siemens/common/board.c
index cc0ac6b..fb2de48 100644
--- a/board/siemens/common/board.c
+++ b/board/siemens/common/board.c
@@ -43,6 +43,11 @@ void set_mux_conf_regs(void)
 /* Initalize the board header */
 enable_i2c0_pin_mux();
 i2c_set_bus_num(0);
+
+   /* enable early the console */
+   gd-baudrate = CONFIG_BAUDRATE;
+   serial_init();
+   gd-have_console = 1;
 if (read_eeprom()  0)
 puts(Could not get board ID.\n);

--
2.1.0



Regards,
Simon



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Re: [U-Boot] [PATCH] am33xx, spl, siemens: enable debug uart output again

2015-02-24 Thread Simon Glass
Hi Heiko,

On 23 February 2015 at 23:18, Heiko Schocher h...@denx.de wrote:
 a6b541b090: TI ARMv7: Don't use GD before crt0.S has set it

 moves the init of the debug uart at the very end of SPL code.
 Enable it for the siemens board earlier, as they print
 ddr settings ... all debug output before board_init_r()
 is here currently useless. Maybe we must rework this
 globally?

Assuming we are talking about U-Boot proper, the DDR init should
happen in board_init_f(), specifically dram_init(). so I think this
code should be updated.

If it is SPL, then DDR init should happen in SPL's board_init_f().

I sent a series a few weeks ago (available at u-boot-dm branch
spl-working) related to this topic:

http://patchwork.ozlabs.org/patch/438581/


 Signed-off-by: Heiko Schocher h...@denx.de
 ---

  board/siemens/common/board.c | 5 +
  1 file changed, 5 insertions(+)

 diff --git a/board/siemens/common/board.c b/board/siemens/common/board.c
 index cc0ac6b..fb2de48 100644
 --- a/board/siemens/common/board.c
 +++ b/board/siemens/common/board.c
 @@ -43,6 +43,11 @@ void set_mux_conf_regs(void)
 /* Initalize the board header */
 enable_i2c0_pin_mux();
 i2c_set_bus_num(0);
 +
 +   /* enable early the console */
 +   gd-baudrate = CONFIG_BAUDRATE;
 +   serial_init();
 +   gd-have_console = 1;
 if (read_eeprom()  0)
 puts(Could not get board ID.\n);

 --
 2.1.0


Regards,
Simon
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[U-Boot] [PATCH] am33xx, spl, siemens: enable debug uart output again

2015-02-23 Thread Heiko Schocher
a6b541b090: TI ARMv7: Don't use GD before crt0.S has set it

moves the init of the debug uart at the very end of SPL code.
Enable it for the siemens board earlier, as they print
ddr settings ... all debug output before board_init_r()
is here currently useless. Maybe we must rework this
globally?

Signed-off-by: Heiko Schocher h...@denx.de
---

 board/siemens/common/board.c | 5 +
 1 file changed, 5 insertions(+)

diff --git a/board/siemens/common/board.c b/board/siemens/common/board.c
index cc0ac6b..fb2de48 100644
--- a/board/siemens/common/board.c
+++ b/board/siemens/common/board.c
@@ -43,6 +43,11 @@ void set_mux_conf_regs(void)
/* Initalize the board header */
enable_i2c0_pin_mux();
i2c_set_bus_num(0);
+
+   /* enable early the console */
+   gd-baudrate = CONFIG_BAUDRATE;
+   serial_init();
+   gd-have_console = 1;
if (read_eeprom()  0)
puts(Could not get board ID.\n);
 
-- 
2.1.0

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