Re: [U-Boot] A23 u-boot with SPL / dram init available in my personal git repo

2014-12-18 Thread Hans de Goede

Hi,

On 15-12-14 07:01, Ricky Xian wrote:

Hi,

I'm trying to boot from usb fel mode on A23. I have rebuilt your sunxi-wip
branch, and try to run on my A23 (q88?) board, but it's failed in fel mode
in executing.

I think the u-boot-spl.bin can be used as A20, this's the website I refer
to:
http://docs.cubieboard.org/tutorials/cb2/development/booting_from_usb_in_fel_mode

my testing instructions are:

fel write address  u-boot-spl.bin
fel exec address

the address for A20 is 0x2000, so that the DRAM will be initialized. but
it's incorrect for A23 if the size reach 0x4000.

can you please let me know how to use fel and your u-boot-spl.bin?


I've just tested this, and it works fine for me using the following commands:

make -j4 CROSS_COMPILE=arm-linux-gnu- Ippo_q8h_v1_2_felconfig

Note the _felconfig rather then _defconfig at the end !

And then:

make -j4 CROSS_COMPILE=arm-linux-gnu-

sudo ~hans/bin/fel write 0x2000 spl/u-boot-spl.bin
sudo ~hans/bin/fel exe 0x2000
sleep 0.5
sudo ~hans/bin/fel write 0x4a00 u-boot.bin
sudo ~hans/bin/fel exe 0x4a00

Regards,

Hans
___
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot


Re: [U-Boot] A23 u-boot with SPL / dram init available in my personal git repo

2014-12-15 Thread Ricky Xian
Hi,

I'm trying to boot from usb fel mode on A23. I have rebuilt your sunxi-wip 
branch, and try to run on my A23 (q88?) board, but it's failed in fel mode 
in executing.

I think the u-boot-spl.bin can be used as A20, this's the website I refer 
to: 
http://docs.cubieboard.org/tutorials/cb2/development/booting_from_usb_in_fel_mode

my testing instructions are:

fel write address  u-boot-spl.bin
fel exec address

the address for A20 is 0x2000, so that the DRAM will be initialized. but 
it's incorrect for A23 if the size reach 0x4000. 

can you please let me know how to use fel and your u-boot-spl.bin? 

Thanks!
Ricky


On Sunday, December 14, 2014 5:44:18 PM UTC+8, Hans de Goede wrote:

 Hi, 

 On 13-12-14 17:07, Chen-Yu Tsai wrote: 
  Hi, 
  
  On Sat, Dec 13, 2014 at 9:58 PM, Hans de Goede hdeg...@redhat.com 
 javascript: wrote: 
  Hi, 
  
  On 09-12-14 13:31, Chen-Yu Tsai wrote: 
  
  snip 
  
  Also I have a schematic file for A23 that someone provided me. 
  I don't remember who... 
  
  It lists: 
  - ALDO2 connected to VCC-DLL @ 2.5V 
  - ALDO3 to VCC-PLL and AVCC (analog power) @ 3.0V 
  - DCDC1 to all the normal stuff @ 3V 
  - DCDC2 to VDD-SYS @ 1.1V 
  - DCDC3 to VDD-CPU (main cpu) @ 1.1V (1.26V in my fex file) 
  - DCDC5 to VCC-DRAM @ 1.1V (1.5V in my fex file) 
  - DC5LDO to VDD-CPUS (special cpu) 
  
  
  Thanks for this info! 
  
  I've prepared a sun8i / A23 set for u-boot which I'll send upstream 
  as soon as I've verified that it does not break A31 support. 
  
  One thing which I've done is make u-boot explicitly disable power 
  outputs which are unused, the specific target for this is DCDC4 
  which is enabled by default at power on and not used on sun8i. 
  
  As a side effect this also disabled ALDO1 which is enabled at power 
  on too, and guess what, promptly my sdcard stopped working. 
  
  So it seems that ALDO1 is hookedup to the sdcard on the Ippo 
  tablets, for now I've also enabled ALDO1 in the defconfig for V5, it 
 would 
  be great if you could give my current sunxi-wip branch a try on your 
  V5 tablet, and if it works remove the setting of ALDO1 from the V5 
  defconfig and then try again. If it is like my V1.2 then it will 
  stop booting when the SPL tries to load u-boot from the sdcard. 
  
  I missed that one. ALDO1 is connected to VCC-IO (pin controller I 
 think), 
  VCC-PD (whatever that is, it isn't on the datasheet, but the schematic 
  implies it's part of the LCD block), VCC-USB (USB block in the SoC), 
  VCC-IO-WIFI (pull-ups and stuff for mmc wifi), and HPVCC (builtin 
  headphone amp). 

 Thanks for the info. Weird thing is it is not listed in the fex, and 
 android on my Ippo Q8H v1.2 seems to set it to 2.5 volt, which is somewhat 
 lowish, it is below the minimum recommended voltage for Vusb (which is 
 2.7) 
 and way below the minimum recommended voltage for HPVCC which is 3.0, 
 according to the A31 datasheet (the A23 datasheet does not list it). 

 I've updated the defconfigs to set ALDO1 to 3.0 V and gave them a comment 
 to explain to which voltages it is connected. 

 As for VCC-PD it is in the A23 datasheet, in the pin description chapter 
 under GPIO-D, it powers the port D gpio pins. 

 Regards, 

 Hans 

___
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot


Re: [U-Boot] A23 u-boot with SPL / dram init available in my personal git repo

2014-12-14 Thread Hans de Goede

Hi,

On 13-12-14 17:07, Chen-Yu Tsai wrote:

Hi,

On Sat, Dec 13, 2014 at 9:58 PM, Hans de Goede hdego...@redhat.com wrote:

Hi,

On 09-12-14 13:31, Chen-Yu Tsai wrote:

snip


Also I have a schematic file for A23 that someone provided me.
I don't remember who...

It lists:
- ALDO2 connected to VCC-DLL @ 2.5V
- ALDO3 to VCC-PLL and AVCC (analog power) @ 3.0V
- DCDC1 to all the normal stuff @ 3V
- DCDC2 to VDD-SYS @ 1.1V
- DCDC3 to VDD-CPU (main cpu) @ 1.1V (1.26V in my fex file)
- DCDC5 to VCC-DRAM @ 1.1V (1.5V in my fex file)
- DC5LDO to VDD-CPUS (special cpu)



Thanks for this info!

I've prepared a sun8i / A23 set for u-boot which I'll send upstream
as soon as I've verified that it does not break A31 support.

One thing which I've done is make u-boot explicitly disable power
outputs which are unused, the specific target for this is DCDC4
which is enabled by default at power on and not used on sun8i.

As a side effect this also disabled ALDO1 which is enabled at power
on too, and guess what, promptly my sdcard stopped working.

So it seems that ALDO1 is hookedup to the sdcard on the Ippo
tablets, for now I've also enabled ALDO1 in the defconfig for V5, it would
be great if you could give my current sunxi-wip branch a try on your
V5 tablet, and if it works remove the setting of ALDO1 from the V5
defconfig and then try again. If it is like my V1.2 then it will
stop booting when the SPL tries to load u-boot from the sdcard.


I missed that one. ALDO1 is connected to VCC-IO (pin controller I think),
VCC-PD (whatever that is, it isn't on the datasheet, but the schematic
implies it's part of the LCD block), VCC-USB (USB block in the SoC),
VCC-IO-WIFI (pull-ups and stuff for mmc wifi), and HPVCC (builtin
headphone amp).


Thanks for the info. Weird thing is it is not listed in the fex, and
android on my Ippo Q8H v1.2 seems to set it to 2.5 volt, which is somewhat
lowish, it is below the minimum recommended voltage for Vusb (which is 2.7)
and way below the minimum recommended voltage for HPVCC which is 3.0,
according to the A31 datasheet (the A23 datasheet does not list it).

I've updated the defconfigs to set ALDO1 to 3.0 V and gave them a comment
to explain to which voltages it is connected.

As for VCC-PD it is in the A23 datasheet, in the pin description chapter
under GPIO-D, it powers the port D gpio pins.

Regards,

Hans
___
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot


Re: [U-Boot] A23 u-boot with SPL / dram init available in my personal git repo

2014-12-13 Thread Hans de Goede

Hi,

On 09-12-14 13:31, Chen-Yu Tsai wrote:

snip


Also I have a schematic file for A23 that someone provided me.
I don't remember who...

It lists:
   - ALDO2 connected to VCC-DLL @ 2.5V
   - ALDO3 to VCC-PLL and AVCC (analog power) @ 3.0V
   - DCDC1 to all the normal stuff @ 3V
   - DCDC2 to VDD-SYS @ 1.1V
   - DCDC3 to VDD-CPU (main cpu) @ 1.1V (1.26V in my fex file)
   - DCDC5 to VCC-DRAM @ 1.1V (1.5V in my fex file)
   - DC5LDO to VDD-CPUS (special cpu)


Thanks for this info!

I've prepared a sun8i / A23 set for u-boot which I'll send upstream
as soon as I've verified that it does not break A31 support.

One thing which I've done is make u-boot explicitly disable power
outputs which are unused, the specific target for this is DCDC4
which is enabled by default at power on and not used on sun8i.

As a side effect this also disabled ALDO1 which is enabled at power
on too, and guess what, promptly my sdcard stopped working.

So it seems that ALDO1 is hookedup to the sdcard on the Ippo
tablets, for now I've also enabled ALDO1 in the defconfig for V5, it would
be great if you could give my current sunxi-wip branch a try on your
V5 tablet, and if it works remove the setting of ALDO1 from the V5
defconfig and then try again. If it is like my V1.2 then it will
stop booting when the SPL tries to load u-boot from the sdcard.

Regards,

Hans
___
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot


Re: [U-Boot] A23 u-boot with SPL / dram init available in my personal git repo

2014-12-13 Thread Chen-Yu Tsai
Hi,

On Sat, Dec 13, 2014 at 9:58 PM, Hans de Goede hdego...@redhat.com wrote:
 Hi,

 On 09-12-14 13:31, Chen-Yu Tsai wrote:

 snip

 Also I have a schematic file for A23 that someone provided me.
 I don't remember who...

 It lists:
- ALDO2 connected to VCC-DLL @ 2.5V
- ALDO3 to VCC-PLL and AVCC (analog power) @ 3.0V
- DCDC1 to all the normal stuff @ 3V
- DCDC2 to VDD-SYS @ 1.1V
- DCDC3 to VDD-CPU (main cpu) @ 1.1V (1.26V in my fex file)
- DCDC5 to VCC-DRAM @ 1.1V (1.5V in my fex file)
- DC5LDO to VDD-CPUS (special cpu)


 Thanks for this info!

 I've prepared a sun8i / A23 set for u-boot which I'll send upstream
 as soon as I've verified that it does not break A31 support.

 One thing which I've done is make u-boot explicitly disable power
 outputs which are unused, the specific target for this is DCDC4
 which is enabled by default at power on and not used on sun8i.

 As a side effect this also disabled ALDO1 which is enabled at power
 on too, and guess what, promptly my sdcard stopped working.

 So it seems that ALDO1 is hookedup to the sdcard on the Ippo
 tablets, for now I've also enabled ALDO1 in the defconfig for V5, it would
 be great if you could give my current sunxi-wip branch a try on your
 V5 tablet, and if it works remove the setting of ALDO1 from the V5
 defconfig and then try again. If it is like my V1.2 then it will
 stop booting when the SPL tries to load u-boot from the sdcard.

I missed that one. ALDO1 is connected to VCC-IO (pin controller I think),
VCC-PD (whatever that is, it isn't on the datasheet, but the schematic
implies it's part of the LCD block), VCC-USB (USB block in the SoC),
VCC-IO-WIFI (pull-ups and stuff for mmc wifi), and HPVCC (builtin
headphone amp).

Others I failed to mention:

ELDO2 to DVDD1V8-CSI @ 1.8V
GPIO0 to AVDD-CSI @ 2.8V
DC1SW to VCC-LCD @ 3V (this is just a switchable output of DCDC1)

Hope this helps.

ChenYu
___
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot


Re: [U-Boot] A23 u-boot with SPL / dram init available in my personal git repo

2014-12-09 Thread Chen-Yu Tsai
Hi,

On Tue, Dec 9, 2014 at 2:53 AM, Hans de Goede hdego...@redhat.com wrote:
 Hi,

 On 08-12-14 15:28, Chen-Yu Tsai wrote:

 On Mon, Dec 8, 2014 at 4:27 AM, Hans de Goede hdego...@redhat.com wrote:

 Hi,

 This is still a bit rough around the edges, I'll clean it up as
 time permits and then post it upstream.

 In the mean time people interested can find $subject here:
 https://github.com/jwrdegoede/u-boot-sunxi/commits/sunxi-wip


 Hopefully I'll get around to testing this. BTW, what tablet do
 you have?


 I've an Ippo q8h v1.2, there are at least 2 differences from the
 v5 you've. The dram clk speed and zq value are different, and the wifi
 is different. The wifi does not matter for u-boot, but does mean we
 need separate dtb files for the 2.

 My u-boot sunxi-wip branch has a defconfig for the v1.2, you should be
 able to copy that over to the v5 defconfig, adjust dram clk and zq values
 with the ones from the v5 fix, change v1.2 to v5 in the CONFIG_FDTFILE
 setting and thats it.

 Let me know if this works, then I'll also include an update for the v5
 defconfig to enable the SPL when I send this upstream.

Just gave it a spin, and it works. The dram clock and zq can be
found in sunxi-boards. Note that the actual settings fetched from
stock u-boot has the highest bit of tpr13 set, disabling auto
detection AFAICU. As you've not implemented that part, I used
auto detection and it seems to work.

The only problem I have now is it has no connectivity to the
outside world lol. I would've liked a v2, with a Realtek USB
WiFi chip. What chip does the v1.2 have?

 ChenYu, this also has a mmc fix which you may find interesting,
 it may explain some of the problems with mmc you've been having
 on both the A80 board, as well as the A31 dev board you've.


 Yes. With that fix my Hummingbird A31 boots properly without
 raising DCDC1 to 3.3V.

 Thanks! I'll send the defconfig out later.


 Good, so I guess this means that DCDC1 should be 3V for your board,
 since that is what the factory firmware uses, right ?

 I guess it is time to make DCDC1 voltage configurable.

3V seems to be the lowest tolerable voltage for some bits. Making it
3.3V might be a bit better. But with my light usage, I don't see any
stability issues.

ChenYu
___
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot


Re: [U-Boot] A23 u-boot with SPL / dram init available in my personal git repo

2014-12-09 Thread Hans de Goede

Hi,

On 09-12-14 11:17, Chen-Yu Tsai wrote:

Hi,

On Tue, Dec 9, 2014 at 2:53 AM, Hans de Goede hdego...@redhat.com wrote:

Hi,

On 08-12-14 15:28, Chen-Yu Tsai wrote:


On Mon, Dec 8, 2014 at 4:27 AM, Hans de Goede hdego...@redhat.com wrote:


Hi,

This is still a bit rough around the edges, I'll clean it up as
time permits and then post it upstream.

In the mean time people interested can find $subject here:
https://github.com/jwrdegoede/u-boot-sunxi/commits/sunxi-wip



Hopefully I'll get around to testing this. BTW, what tablet do
you have?



I've an Ippo q8h v1.2, there are at least 2 differences from the
v5 you've. The dram clk speed and zq value are different, and the wifi
is different. The wifi does not matter for u-boot, but does mean we
need separate dtb files for the 2.

My u-boot sunxi-wip branch has a defconfig for the v1.2, you should be
able to copy that over to the v5 defconfig, adjust dram clk and zq values
with the ones from the v5 fix, change v1.2 to v5 in the CONFIG_FDTFILE
setting and thats it.

Let me know if this works, then I'll also include an update for the v5
defconfig to enable the SPL when I send this upstream.


Just gave it a spin, and it works. The dram clock and zq can be
found in sunxi-boards.


Good, I'll update my patch-set to reflect this.


Note that the actual settings fetched from
stock u-boot has the highest bit of tpr13 set, disabling auto
detection AFAICU. As you've not implemented that part, I used
auto detection and it seems to work.


It is implemented in the actual dram_init code, but for now I've
all the dram_paras hardcoded except the clk and the zq value. If
autodetect works I see no reason to change this, but for future models,
if necessary the code for dealing with manual config is there, to test
just put the values directly in the dram_para struct at the top of
dram_sun8i.c .


The only problem I have now is it has no connectivity to the
outside world lol. I would've liked a v2, with a Realtek USB
WiFi chip. What chip does the v1.2 have?


An sdio based chip, the RDA RDA5990P, as mentioned here:

http://linux-sunxi.org/Ippo_q8h#Q8H-V1.2

It does have an empty spot on the pcb for a usb wifi module, I plan to
hookup a usb connector to that one of these days, and see if I can get
a USB host working this way.


ChenYu, this also has a mmc fix which you may find interesting,
it may explain some of the problems with mmc you've been having
on both the A80 board, as well as the A31 dev board you've.



Yes. With that fix my Hummingbird A31 boots properly without
raising DCDC1 to 3.3V.

Thanks! I'll send the defconfig out later.



Good, so I guess this means that DCDC1 should be 3V for your board,
since that is what the factory firmware uses, right ?

I guess it is time to make DCDC1 voltage configurable.


3V seems to be the lowest tolerable voltage for some bits. Making it
3.3V might be a bit better. But with my light usage, I don't see any
stability issues.


Right, I guess 3V is used to safe battery, which makes sense (in tablets /
phones)

As said I'll make this configurable making 3V the default and set 3V3
in the defconfig where the original firmware does that.

Regards,

Hans
___
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot


Re: [U-Boot] A23 u-boot with SPL / dram init available in my personal git repo

2014-12-09 Thread Chen-Yu Tsai
On Tue, Dec 9, 2014 at 6:25 PM, Hans de Goede hdego...@redhat.com wrote:
 On 09-12-14 11:17, Chen-Yu Tsai wrote:
 On Tue, Dec 9, 2014 at 2:53 AM, Hans de Goede hdego...@redhat.com wrote:
 On 08-12-14 15:28, Chen-Yu Tsai wrote:
 On Mon, Dec 8, 2014 at 4:27 AM, Hans de Goede hdego...@redhat.com
 wrote:


 Hi,

 This is still a bit rough around the edges, I'll clean it up as
 time permits and then post it upstream.

 In the mean time people interested can find $subject here:
 https://github.com/jwrdegoede/u-boot-sunxi/commits/sunxi-wip



 Hopefully I'll get around to testing this. BTW, what tablet do
 you have?



 I've an Ippo q8h v1.2, there are at least 2 differences from the
 v5 you've. The dram clk speed and zq value are different, and the wifi
 is different. The wifi does not matter for u-boot, but does mean we
 need separate dtb files for the 2.

 My u-boot sunxi-wip branch has a defconfig for the v1.2, you should be
 able to copy that over to the v5 defconfig, adjust dram clk and zq values
 with the ones from the v5 fix, change v1.2 to v5 in the CONFIG_FDTFILE
 setting and thats it.

 Let me know if this works, then I'll also include an update for the v5
 defconfig to enable the SPL when I send this upstream.


 Just gave it a spin, and it works. The dram clock and zq can be
 found in sunxi-boards.


 Good, I'll update my patch-set to reflect this.

 Note that the actual settings fetched from
 stock u-boot has the highest bit of tpr13 set, disabling auto
 detection AFAICU. As you've not implemented that part, I used
 auto detection and it seems to work.


 It is implemented in the actual dram_init code, but for now I've
 all the dram_paras hardcoded except the clk and the zq value. If
 autodetect works I see no reason to change this, but for future models,
 if necessary the code for dealing with manual config is there, to test
 just put the values directly in the dram_para struct at the top of
 dram_sun8i.c .

 The only problem I have now is it has no connectivity to the
 outside world lol. I would've liked a v2, with a Realtek USB
 WiFi chip. What chip does the v1.2 have?


 An sdio based chip, the RDA RDA5990P, as mentioned here:

 http://linux-sunxi.org/Ippo_q8h#Q8H-V1.2

Not sure this would require a different DT. Probably the GPIOs
are different.

 It does have an empty spot on the pcb for a usb wifi module, I plan to
 hookup a usb connector to that one of these days, and see if I can get
 a USB host working this way.

I should do that too. Nice way to hook up ethernet. Small problem would
be getting 5V from the board for VBUS.

Also I have a schematic file for A23 that someone provided me.
I don't remember who...

It lists:
  - ALDO2 connected to VCC-DLL @ 2.5V
  - ALDO3 to VCC-PLL and AVCC (analog power) @ 3.0V
  - DCDC1 to all the normal stuff @ 3V
  - DCDC2 to VDD-SYS @ 1.1V
  - DCDC3 to VDD-CPU (main cpu) @ 1.1V (1.26V in my fex file)
  - DCDC5 to VCC-DRAM @ 1.1V (1.5V in my fex file)
  - DC5LDO to VDD-CPUS (special cpu)

 ChenYu, this also has a mmc fix which you may find interesting,
 it may explain some of the problems with mmc you've been having
 on both the A80 board, as well as the A31 dev board you've.



 Yes. With that fix my Hummingbird A31 boots properly without
 raising DCDC1 to 3.3V.

 Thanks! I'll send the defconfig out later.



 Good, so I guess this means that DCDC1 should be 3V for your board,
 since that is what the factory firmware uses, right ?

 I guess it is time to make DCDC1 voltage configurable.


 3V seems to be the lowest tolerable voltage for some bits. Making it
 3.3V might be a bit better. But with my light usage, I don't see any
 stability issues.


 Right, I guess 3V is used to safe battery, which makes sense (in tablets /
 phones)

 As said I'll make this configurable making 3V the default and set 3V3
 in the defconfig where the original firmware does that.

Thanks!

ChenYu
___
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot


Re: [U-Boot] A23 u-boot with SPL / dram init available in my personal git repo

2014-12-08 Thread mike . valk
On Sunday, December 7, 2014 9:27:37 PM UTC+1, Hans de Goede wrote:
 Hi,
 
 This is still a bit rough around the edges, I'll clean it up as
 time permits and then post it upstream.

Hip, Hip Hooray. Thank you. 

How did you pull it off? Did you find documentation somewhere? Or by piecing 
things together?

 
 In the mean time people interested can find $subject here:
 https://github.com/jwrdegoede/u-boot-sunxi/commits/sunxi-wip
 
 ChenYu, this also has a mmc fix which you may find interesting,
 it may explain some of the problems with mmc you've been having
 on both the A80 board, as well as the A31 dev board you've.
 
 Regards,
 
 Hans

___
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot


Re: [U-Boot] A23 u-boot with SPL / dram init available in my personal git repo

2014-12-08 Thread Chen-Yu Tsai
On Mon, Dec 8, 2014 at 4:27 AM, Hans de Goede hdego...@redhat.com wrote:
 Hi,

 This is still a bit rough around the edges, I'll clean it up as
 time permits and then post it upstream.

 In the mean time people interested can find $subject here:
 https://github.com/jwrdegoede/u-boot-sunxi/commits/sunxi-wip

Hopefully I'll get around to testing this. BTW, what tablet do
you have?

 ChenYu, this also has a mmc fix which you may find interesting,
 it may explain some of the problems with mmc you've been having
 on both the A80 board, as well as the A31 dev board you've.

Yes. With that fix my Hummingbird A31 boots properly without
raising DCDC1 to 3.3V.

Thanks! I'll send the defconfig out later.


ChenYu
___
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot


Re: [U-Boot] A23 u-boot with SPL / dram init available in my personal git repo

2014-12-08 Thread Hans de Goede

Hi,

On 08-12-14 15:28, Chen-Yu Tsai wrote:

On Mon, Dec 8, 2014 at 4:27 AM, Hans de Goede hdego...@redhat.com wrote:

Hi,

This is still a bit rough around the edges, I'll clean it up as
time permits and then post it upstream.

In the mean time people interested can find $subject here:
https://github.com/jwrdegoede/u-boot-sunxi/commits/sunxi-wip


Hopefully I'll get around to testing this. BTW, what tablet do
you have?


I've an Ippo q8h v1.2, there are at least 2 differences from the
v5 you've. The dram clk speed and zq value are different, and the wifi
is different. The wifi does not matter for u-boot, but does mean we
need separate dtb files for the 2.

My u-boot sunxi-wip branch has a defconfig for the v1.2, you should be
able to copy that over to the v5 defconfig, adjust dram clk and zq values
with the ones from the v5 fix, change v1.2 to v5 in the CONFIG_FDTFILE
setting and thats it.

Let me know if this works, then I'll also include an update for the v5
defconfig to enable the SPL when I send this upstream.


ChenYu, this also has a mmc fix which you may find interesting,
it may explain some of the problems with mmc you've been having
on both the A80 board, as well as the A31 dev board you've.


Yes. With that fix my Hummingbird A31 boots properly without
raising DCDC1 to 3.3V.

Thanks! I'll send the defconfig out later.


Good, so I guess this means that DCDC1 should be 3V for your board,
since that is what the factory firmware uses, right ?

I guess it is time to make DCDC1 voltage configurable.

Regards,

Hans
___
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot


Re: [U-Boot] A23 u-boot with SPL / dram init available in my personal git repo

2014-12-08 Thread Maxime Ripard
On Sun, Dec 07, 2014 at 09:27:27PM +0100, Hans de Goede wrote:
 Hi,
 
 This is still a bit rough around the edges, I'll clean it up as
 time permits and then post it upstream.
 
 In the mean time people interested can find $subject here:
 https://github.com/jwrdegoede/u-boot-sunxi/commits/sunxi-wip
 
 ChenYu, this also has a mmc fix which you may find interesting,
 it may explain some of the problems with mmc you've been having
 on both the A80 board, as well as the A31 dev board you've.

Wow, very cool, including PMIC support et al.

Thanks a lot :)

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com


signature.asc
Description: Digital signature
___
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot


[U-Boot] A23 u-boot with SPL / dram init available in my personal git repo

2014-12-07 Thread Hans de Goede

Hi,

This is still a bit rough around the edges, I'll clean it up as
time permits and then post it upstream.

In the mean time people interested can find $subject here:
https://github.com/jwrdegoede/u-boot-sunxi/commits/sunxi-wip

ChenYu, this also has a mmc fix which you may find interesting,
it may explain some of the problems with mmc you've been having
on both the A80 board, as well as the A31 dev board you've.

Regards,

Hans
___
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot