[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[Hornung, Michael]

Dear list,

I have an i.MX35PDK (mx35_3stack) with one U-Boot running within the NAND flash and one U-Boot running within the parallel NOR flash. 

I am now trying to get another one running in a serial NOR flash (S25FL064K) I soldered to the CSPI1 lines with CSPI1_SS1 as chip select line. 

Then I changed the bootstrap switches as follows:

BOOT_MODE[1:0]:	00 	Internal boot
BT_MEM_CTL[1:0]:	11 	Expansion device (... , serial ROM)
BT_BUS_WIDTH:	1 	3-byte address SPI device (serial Flash)
BT_MEM_TYPE[1:0]	11 	Serial ROM via SPI

According to my oscilloscope (SPI decoder included), the hardware setup behaves as it should do. The processor clocks, it activates the SS1 line, 
it sends read commands (0x03) following an address and the serial flash sends answers with bytes matching the u-boot.bin file.

I tried the following to build the u-boot binary:

1. 	$ make mx35pdk
	Then I burned u-boot.bin to the serial flash starting at address 0x00

2. 	See 1. but burning the u-boot.bin file to the serial flash starting at address 0x400 (doc/README.imximage)

3.	$ make mx35pdk
	$ cp board/freescale/mx51evk/imximage.cfg board/freescale/mx35pdk/
          	$ ./tools/mkimage -n ./board/freescale/mx35pdk/imximage.cfg -T imximage -e 0xA0000000 -d u-boot.bin u-boot.imx
	Then I burned u-boot.imx to the serial flash starting at address 0x00

4.	See 3. but burning the u-boot.imx file to the serial flash starting at address 0x400 (doc/README.imximage)
 
As you might guess, none of the above attempts works. I get no serial output from U-Boot.

Has anyone a short description how to compile U-Boot in order to run from serial NOR flash?

Thank you very much in advance.

With best regards


Michael Hornung

[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[Fabio Estevam]

Hi Michael,

On Wed, Jul 4, 2012 at 10:29 AM, Hornung, Michael <mhornung@init-ka.de> wrote:

> 3.      $ make mx35pdk
>         $ cp board/freescale/mx51evk/imximage.cfg board/freescale/mx35pdk/

This is not correct. You can not use the DDR settings from mx51evk
directly into mx35pdk.

You would need to create a imximage.cfg for mx35pdk.

Take a look at Freescale U-boot as a reference:
http://opensource.freescale.com/git?p=imx/uboot-imx.git;a=blob;f=board/freescale/mx35_3stack/flash_header.S;h=b662669f80061be18787eafea6eb3668786b6224;hb=329240314138de1fb8d3d08531e0c3408482972f

With these values you can create a correct imximage.cfg file for mx35pdk.

Currently mx35pdk does not support internal boot mode and that is the
reason you don't find a imximage currently.

So my suggestion for you is to try to boot from internal boot mode
first. Try booting from SD card first as this would be easier.

Once you managed to boot from SD card, you will be also able to boot
it from SPI NOR.

Regards,

Fabio Estevam

[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[Fabio Estevam]

On Wed, Jul 4, 2012 at 2:31 PM, Fabio Estevam <festevam@gmail.com> wrote:

> Take a look at Freescale U-boot as a reference:
> http://opensource.freescale.com/git?p=imx/uboot-imx.git;a=blob;f=board/freescale/mx35_3stack/flash_header.S;h=b662669f80061be18787eafea6eb3668786b6224;hb=329240314138de1fb8d3d08531e0c3408482972f

Just to clarify: this file has the RAM settings for two versions of
the board. Earlier mx35pdk came with mDDR and the more recent boards
have DDR2. Most likely your mx35pdk has DDR2 populated, do the values
you need to use are:

//DDR2 init
DCDGEN(2, 4, 0xB8001010, 0x00000304)
DCDGEN(3, 4, 0xB8001010, 0x0000030C)
DCDGEN(4, 4, 0xB8001004, 0x007ffc3f)
DCDGEN(5, 4, 0xB8001000, 0x92220000)
DCDGEN(6, 4, 0x80000400, 0x12345678)
DCDGEN(7, 4, 0xB8001000, 0xA2220000)
DCDGEN(8, 4, 0x80000000, 0x87654321)
DCDGEN(9, 4, 0x80000000, 0x87654321)
DCDGEN(10, 4, 0xB8001000, 0xB2220000)
DCDGEN(11, 1, 0x80000233, 0xda)
DCDGEN(12, 1, 0x82000780, 0xda)
DCDGEN(13, 1, 0x82000400, 0xda)
DCDGEN(14, 4, 0xB8001000, 0x82226080)
DCDGEN(15, 4, 0xB8001004, 0x007ffc3f)
DCDGEN(16, 4, 0xB800100C, 0x007ffc3f)
DCDGEN(17, 4, 0xB8001010, 0x00000304)
DCDGEN(18, 4, 0xB8001008, 0x00002000)

You just need to convert these values into the proper syntax for imximage.cfg.

[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[Fabio Estevam]

Hi Michael,

On Thu, Jul 5, 2012 at 6:09 AM, Hornung, Michael <mhornung@init-ka.de> wrote:
> Hi Fabio,
>
> thank you very much for your reply.
>
>> With these values you can create a correct imximage.cfg file for mx35pdk.
>
> Thank you, I'll try my best.
>
>>> $ ./tools/mkimage -n ./board/freescale/mx35pdk/imximage.cfg -T imximage -e 0xA0000000 -d u-boot.bin u-boot.imx

The best way to generate 'u-boot.imx' is to simply do 'make
u-boot.imx' and then you don't need to pass the above line manually.

> Can you tell me which address I have to append to the -e switch of the mkimage program? I think that my choice (0xA0000000) is
> incorrect since it is /CS0 memory region of the WEIM. Is it 0x10000000 for internal RAM? And if so, do I have to change the following
> define within "include/configs/mx35pdk.h", too?
>
> /* Set TEXT at the beginning of the NOR flash */
> #define CONFIG_SYS_TEXT_BASE    0xA0000000

In internal mode you should do:

#define CONFIG_LOADADDR		0x80800000
#define CONFIG_SYS_TEXT_BASE    0x87800000

for mx35.

You probably will need to skip the RAM init in
board/freescale/mx35pdk/lowlevel_init.S

For a quick test I would remove the call to 'setup_sdram' there,
because RAM will be inited by the values from your created
imximage.cfg file.

After you managed to boot from internal mode, then we can think on how
to properly handle both internal and external boot modes. Maybe we
will need to create another mx35pdk target so that we can handle the
internal mode.

>> So my suggestion for you is to try to boot from internal boot mode first. Try booting from SD card first as this would be easier.
>
> Could you please give a short explanation, why it is easier to boot from SD than from serial NOR?

Well, I don't have SPI NOR populated on my board ;-)

Besides that, flashing an SD card is much simpler. Please read
doc/README.imximage

Booting from SD is the mode we support by default on other
mx25/mx51/mx53/mx6 boards.

Regards,

Fabio Estevam

[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[Hornung, Michael]

>On Thu, Jul 5, 2012 at 6:09 AM, Estevam, wrote:

>Hi Michael,

Hi Fabio,

Thank you very much for your support, I'm getting closer. 

>The best way to generate 'u-boot.imx' is to simply do 'make u-boot.imx' and then you don't need to pass the above line manually.

>In internal mode you should do:

>#define CONFIG_LOADADDR		0x80800000
>#define CONFIG_SYS_TEXT_BASE    0x87800000

>You probably will need to skip the RAM init in board/freescale/mx35pdk/lowlevel_init.S

>For a quick test I would remove the call to 'setup_sdram' there, because RAM will be inited by the values from your created imximage.cfg file.


OK, here what I did:

--- a/boards.cfg
+++ b/boards.cfg

-mx35pdk                      arm         arm1136     -                   freescale      mx35
+mx35pdk                     arm         arm1136     mx35pdk   freescale      mx35        mx35pdk:IMX_CONFIG=board/freescale/mx35pdk/imximage.cfg

--- a/include/configs/mx35pdk.h
+++ b/include/configs/mx35pdk.h

-#define CONFIG_SYS_TEXT_BASE   0xA0000000
+#define CONFIG_SYS_TEXT_BASE   0x87800000

+++ b/board/freescale/mx35pdk/imximage.cfg

+BOOT_FROM      spi

+# DDR2 init
+DATA 4 0xB8001010 0x00000304
+DATA 4 0xB8001010 0x0000030C
+DATA 4 0xB8001004 0x007ffc3f
+DATA 4 0xB8001000 0x92220000
+DATA 4 0x80000400 0x12345678
+DATA 4 0xB8001000 0xA2220000
+DATA 4 0x80000000 0x87654321
+DATA 4 0x80000000 0x87654321
+DATA 4 0xB8001000 0xB2220000
+DATA 1 0x80000233 0xda
+DATA 1 0x82000780 0xda
+DATA 1 0x82000400 0xda
+DATA 4 0xB8001000 0x82226080
+DATA 4 0xB8001004 0x007ffc3f
+DATA 4 0xB800100C 0x007ffc3f
+DATA 4 0xB8001010 0x00000304
+DATA 4 0xB8001008 0x00002000


--- a/board/freescale/mx35pdk/lowlevel_init.S
+++ b/board/freescale/mx35pdk/lowlevel_init.S

init_sdram_start:
        /*init_sdram*/
-       setup_sdram
+  /* setup_sdram */


And here the result (output on the serial line):

---------------------------------------------------------------------------------------------------
U-Boot 2012.04.01-00077-g48bcd18-dirty (Jul 09 2012 - 15:22:31)

CPU:   Freescale i.MX35 rev 2.1 at 532 MHz.
Reset cause: POR
I2C:   ready
----------------------------------------------------------------------------------------------------

And that's it, no more output after "I2C:   ready".  Perhaps you have some more hints about what to do?


With best regards

Michael Hornung

[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[Fabio Estevam]

Hi Michael,

On Mon, Jul 9, 2012 at 9:57 AM, Hornung, Michael <mhornung@init-ka.de> wrote:

> +++ b/board/freescale/mx35pdk/imximage.cfg
>
> +BOOT_FROM      spi

Please see the Freescale U-boot, you missed the initialization of the CS5:

  //WEIM config-CS5 init
  DCDGEN(1, 4, 0xB8002050, 0x0000d843)
  DCDGEN(1_1, 4, 0xB8002054, 0x22252521)
  DCDGEN(1_2, 4, 0xB8002058, 0x22220a00)

> +# DDR2 init
> +DATA 4 0xB8001010 0x00000304
> +DATA 4 0xB8001010 0x0000030C
> +DATA 4 0xB8001004 0x007ffc3f
> +DATA 4 0xB8001000 0x92220000
> +DATA 4 0x80000400 0x12345678
> +DATA 4 0xB8001000 0xA2220000
> +DATA 4 0x80000000 0x87654321
> +DATA 4 0x80000000 0x87654321
> +DATA 4 0xB8001000 0xB2220000
> +DATA 1 0x80000233 0xda
> +DATA 1 0x82000780 0xda
> +DATA 1 0x82000400 0xda
> +DATA 4 0xB8001000 0x82226080
> +DATA 4 0xB8001004 0x007ffc3f
> +DATA 4 0xB800100C 0x007ffc3f
> +DATA 4 0xB8001010 0x00000304
> +DATA 4 0xB8001008 0x00002000
>
>
> --- a/board/freescale/mx35pdk/lowlevel_init.S
> +++ b/board/freescale/mx35pdk/lowlevel_init.S
>
> init_sdram_start:
>         /*init_sdram*/
> -       setup_sdram
> +  /* setup_sdram */
>
>
> And here the result (output on the serial line):
>
> ---------------------------------------------------------------------------------------------------
> U-Boot 2012.04.01-00077-g48bcd18-dirty (Jul 09 2012 - 15:22:31)
>
> CPU:   Freescale i.MX35 rev 2.1 at 532 MHz.
> Reset cause: POR
> I2C:   ready
> ----------------------------------------------------------------------------------------------------
>
> And that's it, no more output after "I2C:   ready".  Perhaps you have some more hints about what to do?

Most likely it is because it will try to access the network, but you
missed to setup the CS5 as per the Freescale U-boot init sequence.

Regards,

Fabio Estevam

[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[Hornung, Michael]

On Mon, Jul 9, 2012 at 9:45 PM, Fabio Estevam <festevam@gmail.com> wrote:
> Hi Michael,

Hi Fabio,

>
> On Mon, Jul 9, 2012 at 9:57 AM, Hornung, Michael <mhornung@init-ka.de> wrote:
>
>> +++ b/board/freescale/mx35pdk/imximage.cfg
>>
>> +BOOT_FROM      spi
>
> Please see the Freescale U-boot, you missed the initialization of the CS5:
>
>   //WEIM config-CS5 init
>   DCDGEN(1, 4, 0xB8002050, 0x0000d843)
>   DCDGEN(1_1, 4, 0xB8002054, 0x22252521)
>   DCDGEN(1_2, 4, 0xB8002058, 0x22220a00)
>
> ...

>
> Most likely it is because it will try to access the network, but you
> missed to setup the CS5 as per the Freescale U-boot init sequence.

Sorry for that, I really missed it. So here what I did:

+++ b/board/freescale/mx35pdk/imximage.cfg

+#WEIM config-CS5 init
+DATA 4 0xB8002050 0x0000d843
+DATA 4 0xB8002054 0x22252521
+DATA 4 0xB8002058 0x22220a00
+
 # DDR2 init


+++ b/config.mk
 RELFLAGS= $(PLATFORM_RELFLAGS)
-DBGFLAGS= -g # -DDEBUG
+DBGFLAGS= -g -DDEBUG


+++ b/board/freescale/mx35pdk/imximage.cfg
 # spi, sd (the board has no nand neither onenand)

-BOOT_FROM      spi
+BOOT_FROM      sd


According to your advise I burned the image to a SD card and changed
BT_MEM_TYPE[1:0] to 00 (SD, MMC, eMMC, or eSD). You are so right, flashing
a SD card is a lot easier.


Then compiled a debugging version of U-Boot:

tools/mkimage -n  "board/freescale/mx35pdk/imximage.cfg" -T imximage \
                -e 0x87800000 -d u-boot.bin u-boot.imx
Image Type:   Freescale IMX Boot Image
Image Ver:    1 (i.MX25/35/51 compatible)
Data Size:    273724 Bytes = 267.31 kB = 0.26 MB
Load Address: 877ff800
Entry Point:  87800000


and here is the visible ouput to the serial line:

U-Boot 2012.04.01-00081-gc831844 (Jul 10 2012 - 17:45:27)

U-Boot code: 87800000 -> 8783B87C  BSS: -> 878422BC
CPU:   Freescale i.MX35 rev 2.1 at 532 MHz.
Reset cause: POR
I2C:   ready


After some trial and error I came up with the follwing:

+++ b/arch/arm/lib/board.c
 #if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
        init_func_i2c,
 #endif
-       dram_init,              /* configure available RAM banks */
+       //dram_init,            /* configure available RAM banks */
        NULL,
 };

@@ -426,8 +426,8 @@ void board_init_f(ulong bootflag)

        gd->bd->bi_baudrate = gd->baudrate;
        /* Ram ist board specific, so move it to board code ... */
-       dram_init_banksize();
-       display_dram_config();  /* and display it */
+       //dram_init_banksize();
+       //display_dram_config();        /* and display it */

        gd->relocaddr = addr;
        gd->start_addr_sp = addr_sp;



After those changes, U-Boot is going a little further:


U-Boot 2012.04.01-00080-gd0921d3-dirty (Jul 10 2012 - 11:31:37)

U-Boot code: 87800000 -> 8783B87C  BSS: -> 878422BC
CPU:   Freescale i.MX35 rev 2.1 at 532 MHz.
Reset cause: RST
I2C:   ready
monitor len: 000422BC
ramsize: 00000000
TLB table at: 7fff0000
Top of RAM usable for U-Boot at: 7fff0000
Reserving 264k for U-Boot at: 7ffad000
Reserving 1280k for malloc() at: 7fe6d000
Reserving 44 Bytes for Board Info at: 7fe6cfd4
Reserving 120 Bytes for Global Data at: 7fe6cf5c
New Stack Pointer is: 7fe6cf50
RAM Configuration:
Bank #0: 00000000 0 Bytes
Bank #1: 00000000 0 Bytes
relocation Offset is: f87ad000


The last (with my very limited knowledge) traceable function call is
"relocate_code(addr_sp, id, addr);" from within "arch/arm/lib/board.c".


Maybe you have another idea what to do next?

By the way: Do you use a BDI3000 for debugging and if so, could you please
send your board configuration file (.cfg) and your register definitions (.def).

>
> Regards,
>
> Fabio Estevam
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot



Thank you very much for your help!

With best regards


Michael Hornung

[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[Fabio Estevam]

Hi Michael,

On Tue, Jul 10, 2012 at 4:08 PM, Hornung, Michael <mhornung@init-ka.de> wrote:

>         gd->bd->bi_baudrate = gd->baudrate;
>         /* Ram ist board specific, so move it to board code ... */
> -       dram_init_banksize();
> -       display_dram_config();  /* and display it */
> +       //dram_init_banksize();
> +       //display_dram_config();        /* and display it */

Hmmm... it doesn't sound like a good idea to remove such lines.

Have you had any progress on this?

I am back to the office and can try to help you on this.

Regards,

Fabio Estevam

[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[Michael Hornung]

On Thu, Jul 26, 2012 at 10:32 PM, Fabio Estevam <festevam@gmail.com> wrote:
> Hi Michael,

Hi Fabio,

good to hear from you.

>
> On Tue, Jul 10, 2012 at 4:08 PM, Hornung, Michael <mhornung@init-ka.de> wrote:
>
>>         gd->bd->bi_baudrate = gd->baudrate;
>>         /* Ram ist board specific, so move it to board code ... */
>> -       dram_init_banksize();
>> -       display_dram_config();  /* and display it */
>> +       //dram_init_banksize();
>> +       //display_dram_config();        /* and display it */
>
> Hmmm... it doesn't sound like a good idea to remove such lines.
>
> Have you had any progress on this?

Unfortunately I had no time to look into the matter any further, but
I'll try again this week.

>
> I am back to the office and can try to help you on this.
>

Thank you so much, I'll be going on asking questions, soon.

> Regards,
>
> Fabio Estevam
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot

With best regards

Michael Hornung

[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[Michael Hornung]

Hi Fabio,

>>
>> Have you had any progress on this?
>

I had some progress on my issue, here a summary of what I did:

- I configured a SD-Card as described in doc/README.imximage
- I did the following changes to the U-Boot sources:

+++ b/board/freescale/mx35pdk/imximage.cfg

+BOOT_FROM      sd

+#WEIM config-CS5 init
+DATA 4 0xB8002050 0x0000d843
+DATA 4 0xB8002054 0x22252521
+DATA 4 0xB8002058 0x22220a00
+
+# DDR2 init
+DATA 4 0xB8001010 0x00000304
+DATA 4 0xB8001010 0x0000030C
+DATA 4 0xB8001004 0x007ffc3f
+DATA 4 0xB8001000 0x92220000
+DATA 4 0x80000400 0x12345678
+DATA 4 0xB8001000 0xA2220000
+DATA 4 0x80000000 0x87654321
+DATA 4 0x80000000 0x87654321
+DATA 4 0xB8001000 0xB2220000
+DATA 1 0x80000233 0xda
+DATA 1 0x82000780 0xda
+DATA 1 0x82000400 0xda
+DATA 4 0xB8001000 0x82226080
+DATA 4 0xB8001004 0x007ffc3f
+DATA 4 0xB800100C 0x007ffc3f
+DATA 4 0xB8001010 0x00000304
+DATA 4 0xB8001008 0x00002000

+++ b/boards.cfg

-mx35pdk                 arm         arm1136     -
freescale          mx35
+mx35pdk                arm         arm1136     -
freescale          mx35
mx35pdk:IMX_CONFIG=board/freescale/mx35pdk/imximage.cfg

+++ b/include/configs/mx35pdk.h

-#define CONFIG_SYS_TEXT_BASE   0xA0000000
+#define CONFIG_SYS_TEXT_BASE   0x87800000

+++ b/config.mk

-DBGFLAGS= -g # -DDEBUG
+DBGFLAGS= -g -DDEBUG


This ended up as described earlier, with an U-Boot promp stoppping
with the following output:

> CPU:   Freescale i.MX35 rev 2.1 at 532 MHz.
> Reset cause: POR
> I2C:   ready


Then I did the following change:

+++ b/board/freescale/mx35pdk/mx35pdk.c

        size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
-       size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
+        size2 = 0;
+       /*size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);*/

        gd->ram_size = size1 + size2;


And here the result:

U-Boot 2012.07-00024-g181e4a3 (Aug 02 2012 - 09:49:35)

U-Boot code: 87800000 -> 8783ACC8  BSS: -> 87841704
CPU:   Freescale i.MX35 rev 2.1 at 532 MHz.
Reset cause: POR
I2C:   ready
monitor len: 00041704
ramsize: 08000000
TLB table at: 87ff0000
Top of RAM usable for U-Boot at: 87ff0000
Reserving 261k for U-Boot at: 87fae000
Reserving 1280k for malloc() at: 87e6e000
Reserving 40 Bytes for Board Info at: 87e6dfd8
Reserving 120 Bytes for Global Data at: 87e6df60
New Stack Pointer is: 87e6df50
RAM Configuration:
Bank #0: 80000000 128 MiB
Bank #1: 90000000 128 MiB
relocation Offset is: 007ae000
dram_bank_mmu_setup: bank: 0
dram_bank_mmu_setup: bank: 1
monitor flash len: 00041508
Now running in RAM - U-Boot at: 87fae000
Flash: flash detect cfi
fwc addr a0000000 cmd f0 f0 8bit x 8 bit
fwc addr a0000000 cmd ff ff 8bit x 8 bit
fwc addr a0000055 cmd 98 98 8bit x 8 bit
is= cmd 51(Q) addr a0000010 is= 14 51
fwc addr a0000555 cmd 98 98 8bit x 8 bit
is= cmd 51(Q) addr a0000010 is= 14 51
fwc addr a0000000 cmd f0 f0f0 16bit x 8 bit
fwc addr a0000000 cmd ff ffff 16bit x 8 bit
fwc addr a00000aa cmd 98 9898 16bit x 8 bit
is= cmd 51(Q) addr a0000020 is= 0051 5151
fwc addr a0000aaa cmd 98 9898 16bit x 8 bit
is= cmd 51(Q) addr a0000020 is= 0051 5151
fwc addr a0000000 cmd f0 00f0 16bit x 16 bit
fwc addr a0000000 cmd ff 00ff 16bit x 16 bit
fwc addr a00000aa cmd 98 0098 16bit x 16 bit
is= cmd 51(Q) addr a0000020 is= 0051 0051
is= cmd 52(R) addr a0000022 is= 0052 0052
is= cmd 59(Y) addr a0000024 is= 0059 0059
device interface is 2
found port 2 chip 2 port 16 bits chip 16 bits
00 : 51 52 59 02 00 40 00 00 00 00 00 27 36 00 00 06  QRY.. at .....'6...
10 : 06 09 13 03 05 03 02 1a 02 00 06 00 01 ff 01 00  ................
20 : 02 00 00 00 00 00 00 00 00 00 00 00 00 8b fb 87  ................
fwc addr a0000000 cmd f0 00f0 16bit x 16 bit
fwc addr a0000aaa cmd aa 00aa 16bit x 16 bit
fwc addr a0000554 cmd 55 0055 16bit x 16 bit
fwc addr a0000aaa cmd 90 0090 16bit x 16 bit
fwc addr a0000000 cmd f0 00f0 16bit x 16 bit
fwc addr a00000aa cmd 98 0098 16bit x 16 bit
manufacturer is 2
manufacturer id is 0x1
device id is 0x227e
device id2 is 0x2301
cfi version is 0x3133
size_ratio 1 port 16 bits chip 16 bits
found 1 erase regions
erase region 0: 0x020001ff
erase_region_count = 512 erase_region_size = 131072
fwc addr a0000000 cmd f0 00f0 16bit x 16 bit
flash_protect ON: from 0xA0000000 to 0xA0041507
fwc addr a0000000 cmd 70 0070 16bit x 16 bit
flash_is_busy: 0
protect on 0
fwc addr a0020000 cmd 70 0070 16bit x 16 bit
flash_is_busy: 0
protect on 1
fwc addr a0040000 cmd 70 0070 16bit x 16 bit
flash_is_busy: 0
protect on 2
flash_protect ON: from 0xA0080000 to 0xA009FFFF
fwc addr a0080000 cmd 70 0070 16bit x 16 bit
flash_is_busy: 0
protect on 4
flash_protect ON: from 0xA00A0000 to 0xA00BFFFF
fwc addr a00a0000 cmd 70 0070 16bit x 16 bit
flash_is_busy: 0
protect on 5
64 MiB
NAND:  4096 MiB
Destroy Hash Table: 87fe94c4 table = (null)
Create Hash Table: N=512
INSERT: table 87fe94c4, filled 1/521 rv 87e90f44 ==> name="addip"
value="if test -n ${ipdyn};then run addip_dyn;else run addip_sta;fi"
INSERT: table 87fe94c4, filled 2/521 rv 87e90a34 ==> name="addip_dyn"
value="setenv bootargs ${bootargs} ip=dhcp"
INSERT: table 87fe94c4, filled 3/521 rv 87e91028 ==> name="addip_sta"
value="setenv bootargs ${bootargs}
ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:${netdev}:off
panic=1"
INSERT: table 87fe94c4, filled 4/521 rv 87e90a70 ==> name="addmisc"
value="setenv bootargs ${bootargs} ${misc}"
INSERT: table 87fe94c4, filled 5/521 rv 87e91898 ==> name="addmtd"
value="setenv bootargs ${bootargs} ${mtdparts}"
INSERT: table 87fe94c4, filled 6/521 rv 87e91ad8 ==> name="addtty"
value="setenv bootargs ${bootargs} console=ttymxc0,${baudrate}"
INSERT: table 87fe94c4, filled 7/521 rv 87e90e60 ==> name="baudrate"
value="115200"
INSERT: table 87fe94c4, filled 8/521 rv 87e91eec ==>
name="bootargs_nfs" value="setenv bootargs console=ttymxc0,${baudrate}
root=/dev/nfs ip=${ipaddr} rw nfsroot=${serverip}:${rootpath}"
INSERT: table 87fe94c4, filled 9/521 rv 87e910dc ==> name="bootcmd"
value="run net_nfs"
INSERT: table 87fe94c4, filled 10/521 rv 87e915e0 ==> name="bootdelay" value="3"
INSERT: table 87fe94c4, filled 11/521 rv 87e912bc ==> name="bootfile"
value="/3stack/uImage"
INSERT: table 87fe94c4, filled 12/521 rv 87e91058 ==> name="ethact"
value="smc911x-0"
INSERT: table 87fe94c4, filled 13/521 rv 87e90cec ==> name="ethaddr"
value="00:04:9f:01:2f:9a"
INSERT: table 87fe94c4, filled 14/521 rv 87e90b24 ==> name="ethprime"
value="smc911x"
INSERT: table 87fe94c4, filled 15/521 rv 87e909d4 ==> name="flash_nfs"
value="run bootargs_nfs; nand read ${loadaddr} 0x300000 0x200000;
bootm"
INSERT: table 87fe94c4, filled 16/521 rv 87e9173c ==>
name="flash_self" value="run ramargs addip addtty addmtd addmisc;bootm
${kernel_addr} ${ramdisk_addr}"
INSERT: table 87fe94c4, filled 17/521 rv 87e91928 ==> name="hostname"
value=""mx35pdk""
INSERT: table 87fe94c4, filled 18/521 rv 87e91e68 ==> name="ipaddr"
value="192.168.1.10"
INSERT: table 87fe94c4, filled 19/521 rv 87e91118 ==>
name="kernel_addr_r" value="80800000"
INSERT: table 87fe94c4, filled 20/521 rv 87e915d4 ==> name="load"
value="tftp ${loadaddr} ${u-boot}"
INSERT: table 87fe94c4, filled 21/521 rv 87e914fc ==> name="loadaddr"
value="0x80800000"
INSERT: table 87fe94c4, filled 22/521 rv 87e90854 ==> name="net_nfs"
value="tftp ${load_addr} ${bootfile}; run bootargs_nfs; bootm
${load_addr}"
INSERT: table 87fe94c4, filled 23/521 rv 87e913d0 ==>
name="net_self_load" value="tftp ${kernel_addr_r} ${bootfile};tftp
${ramdisk_addr_r} ${ramdisk_file};"
INSERT: table 87fe94c4, filled 24/521 rv 87e91f34 ==> name="netdev" value="eth0"
INSERT: table 87fe94c4, filled 25/521 rv 87e90950 ==> name="nfsargs"
value="setenv bootargs root=/dev/nfs rw
nfsroot=${serverip}:${rootpath}"
INSERT: table 87fe94c4, filled 26/521 rv 87e90704 ==> name="ramargs"
value="setenv bootargs root=/dev/ram rw"
INSERT: table 87fe94c4, filled 27/521 rv 87e918f8 ==>
name="ramdisk_file" value=""mx35pdk"/uRamdisk"
INSERT: table 87fe94c4, filled 28/521 rv 87e91664 ==> name="rootpath"
value="/opt/eldk-5.2.1/armv6/rootfs-qte-sdk"
INSERT: table 87fe94c4, filled 29/521 rv 87e90fa4 ==> name="serverip"
value="192.168.1.1"
INSERT: table 87fe94c4, filled 30/521 rv 87e91340 ==> name="stderr"
value="serial"
INSERT: table 87fe94c4, filled 31/521 rv 87e90e00 ==> name="stdin"
value="serial"
INSERT: table 87fe94c4, filled 32/521 rv 87e91850 ==> name="stdout"
value="serial"
INSERT: table 87fe94c4, filled 33/521 rv 87e91af0 ==> name="u-boot"
value=""mx35pdk"/u-boot.bin"
INSERT: table 87fe94c4, filled 34/521 rv 87e91ef8 ==>
name="uboot_addr" value="0xa0000000"
INSERT: table 87fe94c4, filled 35/521 rv 87e91040 ==> name="upd"
value="if run load;then echo Updating u-boot;if run update;then echo
U-Boot updated;else echo Error updating u-boot !;echo Board without
bootloader !!;fi;else echo U-Boot not downloaded..exiting;fi"
INSERT: table 87fe94c4, filled 36/521 rv 87e910f4 ==> name="update"
value="protect off ${uboot_addr} +40000;erase ${uboot_addr}
+40000;cp.b ${loadaddr} ${uboot_addr} ${filesize}"
INSERT: free(data = 87e706d0)
INSERT: done
In:    serial
Out:   serial
Err:   serial
Board: MX35 PDK 2.0
Net:   eth_init: fec_probe(bd)
fec_mii_setspeed: mii_speed 0000001a
smc911x-0, FEC
### main_loop entered: bootdelay=3

### main_loop: bootcmd="run net_nfs"
Hit any key to stop autoboot:  0
MX35 U-Boot >


U-Boot is running now (any idea why?), but unfortunately it does not
run the kernel:


MX35 U-Boot > run  net_nfs
Trying smc911x-0
smc911x: detected LAN9217 controller
smc911x: phy initialized
smc911x: MAC 00:04:9f:01:2f:9a
TFTP blocksize = 1468, timeout = 5000 ms
Using smc911x-0 device
TFTP from server 192.168.1.1; our IP address is 192.168.1.10
Filename '/3stack/uImage'.
Load address: 0x80800000
Loading: send option "timeout 5"
Got OACK: timeout 5
Blocksize ack: 1468, 1468
#################################################################
         #################################################################
         #########
done
Bytes transferred = 2036440 (1f12d8 hex)
CACHE: Misaligned operation at range [80800000, 809f12d8]
## Current stack ends at 0x87e6dbf8 *  kernel: default image load
address = 0x80800000
## Booting kernel from Legacy Image at 80800000 ...
   Image Name:   Linux-2.6.31-00203-g63769bf
   Created:      2012-05-15  10:06:22 UTC
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    2036376 Bytes = 1.9 MiB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
   kernel data at 0x80800040, len = 0x001f1298 (2036376)
## No init Ramdisk
   ramdisk start = 0x00000000, ramdisk end = 0x00000000
   Loading Kernel Image ... OK
OK
   kernel loaded at 0x80008000, end = 0x801f9298
using: ATAGS
## Transferring control to Linux (at address 80008000)...

Starting kernel ...

Uncompressing Linux......................................................................................................................................
done, booting the kernel.

And that's it, no more kernel output.

Here my environment

addip=if test -n ${ipdyn};then run addip_dyn;else run addip_sta;fi
addip_dyn=setenv bootargs ${bootargs} ip=dhcp
addip_sta=setenv bootargs ${bootargs}
ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:${netdev}:off
panic=1
addmisc=setenv bootargs ${bootargs} ${misc}
addmtd=setenv bootargs ${bootargs} ${mtdparts}
addtty=setenv bootargs ${bootargs} console=ttymxc0,${baudrate}
baudrate=115200
bootargs_nfs=setenv bootargs console=ttymxc0,${baudrate} root=/dev/nfs
ip=${ipaddr} rw nfsroot=${serverip}:${rootpath}
bootcmd=run net_nfs
bootdelay=3
bootfile=/3stack/uImage
ethact=smc911x-0
ethaddr=00:04:9f:01:2f:9a
ethprime=smc911x
flash_nfs=run bootargs_nfs; nand read ${loadaddr} 0x300000 0x200000; bootm
flash_self=run ramargs addip addtty addmtd addmisc;bootm
${kernel_addr} ${ramdisk_addr}
hostname="mx35pdk"
ipaddr=192.168.1.10
kernel_addr_r=80800000
load=tftp ${loadaddr} ${u-boot}
loadaddr=0x80800000
net_nfs=tftp ${load_addr} ${bootfile}; run bootargs_nfs; bootm ${load_addr}
net_self_load=tftp ${kernel_addr_r} ${bootfile};tftp ${ramdisk_addr_r}
${ramdisk_file};
netdev=eth0
nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath}
ramargs=setenv bootargs root=/dev/ram rw
ramdisk_file="mx35pdk"/uRamdisk
rootpath=/opt/eldk-5.2.1/armv6/rootfs-qte-sdk
serverip=192.168.1.1
stderr=serial
stdin=serial
stdout=serial
u-boot="mx35pdk"/u-boot.bin
uboot_addr=0xa0000000
upd=if run load;then echo Updating u-boot;if run update;then echo
U-Boot updated;else echo Error updating u-boot !;echo Board without
bootloader !!;fi;else echo U-Boot not downloaded..exiting;fi
update=protect off ${uboot_addr} +40000;erase ${uboot_addr}
+40000;cp.b ${loadaddr} ${uboot_addr} ${filesize}


Doing changes to the environment is not possible, the command
"saveenv" ends up with an endless loop of the following message:

MX35 U-Boot > saveenv
Saving Environment to Flash...
Protect off A00A0000 ... A00BFFFF
Un-Protecting sectors 5..5 in bank 1
fwc addr a00a0000 cmd 70 0070 16bit x 16 bit
flash_is_busy: 0
. done
Un-Protected 1 sectors
Protect off A0080000 ... A009FFFF
Un-Protecting sectors 4..4 in bank 1
fwc addr a0080000 cmd 70 0070 16bit x 16 bit
flash_is_busy: 0
. done
Un-Protected 1 sectors
EXPORT  table = 87fe94c4, htab.size = 521, htab.filled = 36, size = 131067
Unsorted: n=36
          0: 87e90704 ==> ramargs    => setenv bootargs root=/dev/ram rw
          1: 87e90854 ==> net_nfs    => tftp ${load_addr} ${bootfile};
run bootargs_nfs; bootm ${load_addr}
          2: 87e90950 ==> nfsargs    => setenv bootargs root=/dev/nfs
rw nfsroot=${serverip}:${rootpath}
          3: 87e909d4 ==> flash_nfs  => run bootargs_nfs; nand read
${loadaddr} 0x300000 0x200000; bootm
          4: 87e90a34 ==> addip_dyn  => setenv bootargs ${bootargs} ip=dhcp
          5: 87e90a70 ==> addmisc    => setenv bootargs ${bootargs} ${misc}
          6: 87e90b24 ==> ethprime   => smc911x
          7: 87e90cec ==> ethaddr    => 00:04:9f:01:2f:9a
          8: 87e90e00 ==> stdin      => serial
          9: 87e90e60 ==> baudrate   => 115200
         10: 87e90f44 ==> addip      => if test -n ${ipdyn};then run
addip_dyn;else run addip_sta;fi
         11: 87e90fa4 ==> serverip   => 192.168.1.1
         12: 87e91028 ==> addip_sta  => setenv bootargs ${bootargs}
ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:${netdev}:off
panic=1
         13: 87e91040 ==> upd        => if run load;then echo Updating
u-boot;if run update;then echo U-Boot updated;else echo Error updating
u-boot !;echo Board without bootloader !!;fi;else echo U-Boot not
downloaded..exiting;fi
         14: 87e91058 ==> ethact     => smc911x-0
         15: 87e910dc ==> bootcmd    => run net_nfs
         16: 87e910f4 ==> update     => protect off ${uboot_addr}
+40000;erase ${uboot_addr} +40000;cp.b ${loadaddr} ${uboot_addr}
${filesize}
         17: 87e91118 ==> kernel_addr_r => 80800000
         18: 87e912bc ==> bootfile   => /3stack/uImage
         19: 87e91340 ==> stderr     => serial
         20: 87e913d0 ==> net_self_load => tftp ${kernel_addr_r}
${bootfile};tftp ${ramdisk_addr_r} ${ramdisk_file};
         21: 87e914fc ==> loadaddr   => 0x80800000
         22: 87e915d4 ==> load       => tftp ${loadaddr} ${u-boot}
         23: 87e915e0 ==> bootdelay  => 3
         24: 87e91664 ==> rootpath   => /opt/eldk-5.2.1/armv6/rootfs-qte-sdk
         25: 87e9173c ==> flash_self => run ramargs addip addtty
addmtd addmisc;bootm ${kernel_addr} ${ramdisk_addr}
         26: 87e91850 ==> stdout     => serial
         27: 87e91898 ==> addmtd     => setenv bootargs ${bootargs} ${mtdparts}
         28: 87e918f8 ==> ramdisk_file => "mx35pdk"/uRamdisk
         29: 87e91928 ==> hostname   => "mx35pdk"
         30: 87e91ad8 ==> addtty     => setenv bootargs ${bootargs}
console=ttymxc0,${baudrate}
         31: 87e91af0 ==> u-boot     => "mx35pdk"/u-boot.bin
         32: 87e91e68 ==> ipaddr     => 192.168.1.10
         33: 87e91eec ==> bootargs_nfs => setenv bootargs
console=ttymxc0,${baudrate} root=/dev/nfs ip=${ipaddr} rw
nfsroot=${serverip}:${rootpath}
         34: 87e91ef8 ==> uboot_addr => 0xa0000000
         35: 87e91f34 ==> netdev     => eth0
Erasing Flash... A0080000 ... A009FFFF ...Erase Flash from 0xa0080000
to 0xa009ffff in Bank # 1
fwc addr a0080aaa cmd aa 00aa 16bit x 16 bit
fwc addr a0080554 cmd 55 0055 16bit x 16 bit
fwc addr a0080aaa cmd 80 0080 16bit x 16 bit
fwc addr a0080aaa cmd aa 00aa 16bit x 16 bit
fwc addr a0080554 cmd 55 0055 16bit x 16 bit
fwc addr a0080000 cmd 30 0030 16bit x 16 bit
flash_is_busy: 1
flash_is_busy: 1
flash_is_busy: 1
...

Could you please give me some hits what to do next?


With best regards

Michael Hornung

[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[Fabio Estevam]

On 8/2/12, Michael Hornung <mhornung.linux@gmail.com> wrote:
> Hi Fabio,
>
>>>
>>> Have you had any progress on this?
>>
>
> I had some progress on my issue, here a summary of what I did:
>
> - I configured a SD-Card as described in doc/README.imximage
> - I did the following changes to the U-Boot sources:
>
> +++ b/board/freescale/mx35pdk/imximage.cfg
>
> +BOOT_FROM      sd
>
> +#WEIM config-CS5 init
> +DATA 4 0xB8002050 0x0000d843
> +DATA 4 0xB8002054 0x22252521
> +DATA 4 0xB8002058 0x22220a00
> +
> +# DDR2 init
> +DATA 4 0xB8001010 0x00000304
> +DATA 4 0xB8001010 0x0000030C
> +DATA 4 0xB8001004 0x007ffc3f
> +DATA 4 0xB8001000 0x92220000
> +DATA 4 0x80000400 0x12345678
> +DATA 4 0xB8001000 0xA2220000
> +DATA 4 0x80000000 0x87654321
> +DATA 4 0x80000000 0x87654321
> +DATA 4 0xB8001000 0xB2220000
> +DATA 1 0x80000233 0xda
> +DATA 1 0x82000780 0xda
> +DATA 1 0x82000400 0xda
> +DATA 4 0xB8001000 0x82226080
> +DATA 4 0xB8001004 0x007ffc3f
> +DATA 4 0xB800100C 0x007ffc3f
> +DATA 4 0xB8001010 0x00000304
> +DATA 4 0xB8001008 0x00002000
>
> +++ b/boards.cfg
>
> -mx35pdk                 arm         arm1136     -
> freescale          mx35
> +mx35pdk                arm         arm1136     -
> freescale          mx35
> mx35pdk:IMX_CONFIG=board/freescale/mx35pdk/imximage.cfg
>
> +++ b/include/configs/mx35pdk.h
>
> -#define CONFIG_SYS_TEXT_BASE   0xA0000000
> +#define CONFIG_SYS_TEXT_BASE   0x87800000
>
> +++ b/config.mk
>
> -DBGFLAGS= -g # -DDEBUG
> +DBGFLAGS= -g -DDEBUG
>

Didn't you also had to remove the init_sdram call in lowlevel_init.S ?


> This ended up as described earlier, with an U-Boot promp stoppping
> with the following output:
>
>> CPU:   Freescale i.MX35 rev 2.1 at 532 MHz.
>> Reset cause: POR
>> I2C:   ready
>
>
> Then I did the following change:
>
> +++ b/board/freescale/mx35pdk/mx35pdk.c
>
>         size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
> -       size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
> +        size2 = 0;
> +       /*size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);*/

I think we should not touch this.

>
>         gd->ram_size = size1 + size2;
>
>
> And here the result:
>
> U-Boot 2012.07-00024-g181e4a3 (Aug 02 2012 - 09:49:35)
>
> U-Boot code: 87800000 -> 8783ACC8  BSS: -> 87841704
> CPU:   Freescale i.MX35 rev 2.1 at 532 MHz.
> Reset cause: POR
> I2C:   ready
> monitor len: 00041704
> ramsize: 08000000
> TLB table at: 87ff0000
> Top of RAM usable for U-Boot at: 87ff0000
> Reserving 261k for U-Boot at: 87fae000
> Reserving 1280k for malloc() at: 87e6e000
> Reserving 40 Bytes for Board Info at: 87e6dfd8
> Reserving 120 Bytes for Global Data at: 87e6df60
> New Stack Pointer is: 87e6df50
> RAM Configuration:
> Bank #0: 80000000 128 MiB
> Bank #1: 90000000 128 MiB
> relocation Offset is: 007ae000
> dram_bank_mmu_setup: bank: 0
> dram_bank_mmu_setup: bank: 1
> monitor flash len: 00041508
> Now running in RAM - U-Boot at: 87fae000
> Flash: flash detect cfi
> fwc addr a0000000 cmd f0 f0 8bit x 8 bit
> fwc addr a0000000 cmd ff ff 8bit x 8 bit
> fwc addr a0000055 cmd 98 98 8bit x 8 bit
> is= cmd 51(Q) addr a0000010 is= 14 51
> fwc addr a0000555 cmd 98 98 8bit x 8 bit
> is= cmd 51(Q) addr a0000010 is= 14 51
> fwc addr a0000000 cmd f0 f0f0 16bit x 8 bit
> fwc addr a0000000 cmd ff ffff 16bit x 8 bit
> fwc addr a00000aa cmd 98 9898 16bit x 8 bit
> is= cmd 51(Q) addr a0000020 is= 0051 5151
> fwc addr a0000aaa cmd 98 9898 16bit x 8 bit
> is= cmd 51(Q) addr a0000020 is= 0051 5151
> fwc addr a0000000 cmd f0 00f0 16bit x 16 bit
> fwc addr a0000000 cmd ff 00ff 16bit x 16 bit
> fwc addr a00000aa cmd 98 0098 16bit x 16 bit
> is= cmd 51(Q) addr a0000020 is= 0051 0051
> is= cmd 52(R) addr a0000022 is= 0052 0052
> is= cmd 59(Y) addr a0000024 is= 0059 0059
> device interface is 2
> found port 2 chip 2 port 16 bits chip 16 bits
> 00 : 51 52 59 02 00 40 00 00 00 00 00 27 36 00 00 06  QRY.. at .....'6...
> 10 : 06 09 13 03 05 03 02 1a 02 00 06 00 01 ff 01 00  ................
> 20 : 02 00 00 00 00 00 00 00 00 00 00 00 00 8b fb 87  ................
> fwc addr a0000000 cmd f0 00f0 16bit x 16 bit
> fwc addr a0000aaa cmd aa 00aa 16bit x 16 bit
> fwc addr a0000554 cmd 55 0055 16bit x 16 bit
> fwc addr a0000aaa cmd 90 0090 16bit x 16 bit
> fwc addr a0000000 cmd f0 00f0 16bit x 16 bit
> fwc addr a00000aa cmd 98 0098 16bit x 16 bit
> manufacturer is 2
> manufacturer id is 0x1
> device id is 0x227e
> device id2 is 0x2301
> cfi version is 0x3133
> size_ratio 1 port 16 bits chip 16 bits
> found 1 erase regions
> erase region 0: 0x020001ff
> erase_region_count = 512 erase_region_size = 131072
> fwc addr a0000000 cmd f0 00f0 16bit x 16 bit
> flash_protect ON: from 0xA0000000 to 0xA0041507
> fwc addr a0000000 cmd 70 0070 16bit x 16 bit
> flash_is_busy: 0
> protect on 0
> fwc addr a0020000 cmd 70 0070 16bit x 16 bit
> flash_is_busy: 0
> protect on 1
> fwc addr a0040000 cmd 70 0070 16bit x 16 bit
> flash_is_busy: 0
> protect on 2
> flash_protect ON: from 0xA0080000 to 0xA009FFFF
> fwc addr a0080000 cmd 70 0070 16bit x 16 bit
> flash_is_busy: 0
> protect on 4
> flash_protect ON: from 0xA00A0000 to 0xA00BFFFF
> fwc addr a00a0000 cmd 70 0070 16bit x 16 bit
> flash_is_busy: 0
> protect on 5
> 64 MiB
> NAND:  4096 MiB
> Destroy Hash Table: 87fe94c4 table = (null)
> Create Hash Table: N=512
> INSERT: table 87fe94c4, filled 1/521 rv 87e90f44 ==> name="addip"
> value="if test -n ${ipdyn};then run addip_dyn;else run addip_sta;fi"
> INSERT: table 87fe94c4, filled 2/521 rv 87e90a34 ==> name="addip_dyn"
> value="setenv bootargs ${bootargs} ip=dhcp"
> INSERT: table 87fe94c4, filled 3/521 rv 87e91028 ==> name="addip_sta"
> value="setenv bootargs ${bootargs}
> ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:${netdev}:off
> panic=1"
> INSERT: table 87fe94c4, filled 4/521 rv 87e90a70 ==> name="addmisc"
> value="setenv bootargs ${bootargs} ${misc}"
> INSERT: table 87fe94c4, filled 5/521 rv 87e91898 ==> name="addmtd"
> value="setenv bootargs ${bootargs} ${mtdparts}"
> INSERT: table 87fe94c4, filled 6/521 rv 87e91ad8 ==> name="addtty"
> value="setenv bootargs ${bootargs} console=ttymxc0,${baudrate}"
> INSERT: table 87fe94c4, filled 7/521 rv 87e90e60 ==> name="baudrate"
> value="115200"
> INSERT: table 87fe94c4, filled 8/521 rv 87e91eec ==>
> name="bootargs_nfs" value="setenv bootargs console=ttymxc0,${baudrate}
> root=/dev/nfs ip=${ipaddr} rw nfsroot=${serverip}:${rootpath}"
> INSERT: table 87fe94c4, filled 9/521 rv 87e910dc ==> name="bootcmd"
> value="run net_nfs"
> INSERT: table 87fe94c4, filled 10/521 rv 87e915e0 ==> name="bootdelay"
> value="3"
> INSERT: table 87fe94c4, filled 11/521 rv 87e912bc ==> name="bootfile"
> value="/3stack/uImage"
> INSERT: table 87fe94c4, filled 12/521 rv 87e91058 ==> name="ethact"
> value="smc911x-0"
> INSERT: table 87fe94c4, filled 13/521 rv 87e90cec ==> name="ethaddr"
> value="00:04:9f:01:2f:9a"
> INSERT: table 87fe94c4, filled 14/521 rv 87e90b24 ==> name="ethprime"
> value="smc911x"
> INSERT: table 87fe94c4, filled 15/521 rv 87e909d4 ==> name="flash_nfs"
> value="run bootargs_nfs; nand read ${loadaddr} 0x300000 0x200000;
> bootm"
> INSERT: table 87fe94c4, filled 16/521 rv 87e9173c ==>
> name="flash_self" value="run ramargs addip addtty addmtd addmisc;bootm
> ${kernel_addr} ${ramdisk_addr}"
> INSERT: table 87fe94c4, filled 17/521 rv 87e91928 ==> name="hostname"
> value=""mx35pdk""
> INSERT: table 87fe94c4, filled 18/521 rv 87e91e68 ==> name="ipaddr"
> value="192.168.1.10"
> INSERT: table 87fe94c4, filled 19/521 rv 87e91118 ==>
> name="kernel_addr_r" value="80800000"
> INSERT: table 87fe94c4, filled 20/521 rv 87e915d4 ==> name="load"
> value="tftp ${loadaddr} ${u-boot}"
> INSERT: table 87fe94c4, filled 21/521 rv 87e914fc ==> name="loadaddr"
> value="0x80800000"
> INSERT: table 87fe94c4, filled 22/521 rv 87e90854 ==> name="net_nfs"
> value="tftp ${load_addr} ${bootfile}; run bootargs_nfs; bootm
> ${load_addr}"
> INSERT: table 87fe94c4, filled 23/521 rv 87e913d0 ==>
> name="net_self_load" value="tftp ${kernel_addr_r} ${bootfile};tftp
> ${ramdisk_addr_r} ${ramdisk_file};"
> INSERT: table 87fe94c4, filled 24/521 rv 87e91f34 ==> name="netdev"
> value="eth0"
> INSERT: table 87fe94c4, filled 25/521 rv 87e90950 ==> name="nfsargs"
> value="setenv bootargs root=/dev/nfs rw
> nfsroot=${serverip}:${rootpath}"
> INSERT: table 87fe94c4, filled 26/521 rv 87e90704 ==> name="ramargs"
> value="setenv bootargs root=/dev/ram rw"
> INSERT: table 87fe94c4, filled 27/521 rv 87e918f8 ==>
> name="ramdisk_file" value=""mx35pdk"/uRamdisk"
> INSERT: table 87fe94c4, filled 28/521 rv 87e91664 ==> name="rootpath"
> value="/opt/eldk-5.2.1/armv6/rootfs-qte-sdk"
> INSERT: table 87fe94c4, filled 29/521 rv 87e90fa4 ==> name="serverip"
> value="192.168.1.1"
> INSERT: table 87fe94c4, filled 30/521 rv 87e91340 ==> name="stderr"
> value="serial"
> INSERT: table 87fe94c4, filled 31/521 rv 87e90e00 ==> name="stdin"
> value="serial"
> INSERT: table 87fe94c4, filled 32/521 rv 87e91850 ==> name="stdout"
> value="serial"
> INSERT: table 87fe94c4, filled 33/521 rv 87e91af0 ==> name="u-boot"
> value=""mx35pdk"/u-boot.bin"
> INSERT: table 87fe94c4, filled 34/521 rv 87e91ef8 ==>
> name="uboot_addr" value="0xa0000000"
> INSERT: table 87fe94c4, filled 35/521 rv 87e91040 ==> name="upd"
> value="if run load;then echo Updating u-boot;if run update;then echo
> U-Boot updated;else echo Error updating u-boot !;echo Board without
> bootloader !!;fi;else echo U-Boot not downloaded..exiting;fi"
> INSERT: table 87fe94c4, filled 36/521 rv 87e910f4 ==> name="update"
> value="protect off ${uboot_addr} +40000;erase ${uboot_addr}
> +40000;cp.b ${loadaddr} ${uboot_addr} ${filesize}"
> INSERT: free(data = 87e706d0)
> INSERT: done
> In:    serial
> Out:   serial
> Err:   serial
> Board: MX35 PDK 2.0
> Net:   eth_init: fec_probe(bd)
> fec_mii_setspeed: mii_speed 0000001a
> smc911x-0, FEC
> ### main_loop entered: bootdelay=3
>
> ### main_loop: bootcmd="run net_nfs"
> Hit any key to stop autoboot:  0
> MX35 U-Boot >
>
>
> U-Boot is running now (any idea why?), but unfortunately it does not
> run the kernel:
>
>
> MX35 U-Boot > run  net_nfs
> Trying smc911x-0
> smc911x: detected LAN9217 controller
> smc911x: phy initialized
> smc911x: MAC 00:04:9f:01:2f:9a
> TFTP blocksize = 1468, timeout = 5000 ms
> Using smc911x-0 device
> TFTP from server 192.168.1.1; our IP address is 192.168.1.10
> Filename '/3stack/uImage'.
> Load address: 0x80800000
> Loading: send option "timeout 5"
> Got OACK: timeout 5
> Blocksize ack: 1468, 1468
> #################################################################
>          #################################################################
>          #########
> done
> Bytes transferred = 2036440 (1f12d8 hex)
> CACHE: Misaligned operation at range [80800000, 809f12d8]
> ## Current stack ends at 0x87e6dbf8 *  kernel: default image load
> address = 0x80800000
> ## Booting kernel from Legacy Image at 80800000 ...
>    Image Name:   Linux-2.6.31-00203-g63769bf
>    Created:      2012-05-15  10:06:22 UTC
>    Image Type:   ARM Linux Kernel Image (uncompressed)
>    Data Size:    2036376 Bytes = 1.9 MiB
>    Load Address: 80008000
>    Entry Point:  80008000
>    Verifying Checksum ... OK
>    kernel data at 0x80800040, len = 0x001f1298 (2036376)
> ## No init Ramdisk
>    ramdisk start = 0x00000000, ramdisk end = 0x00000000
>    Loading Kernel Image ... OK
> OK
>    kernel loaded at 0x80008000, end = 0x801f9298
> using: ATAGS
> ## Transferring control to Linux (at address 80008000)...
>
> Starting kernel ...
>
> Uncompressing
> Linux......................................................................................................................................
> done, booting the kernel.
>
> And that's it, no more kernel output.
>
> Here my environment
>
> addip=if test -n ${ipdyn};then run addip_dyn;else run addip_sta;fi
> addip_dyn=setenv bootargs ${bootargs} ip=dhcp
> addip_sta=setenv bootargs ${bootargs}
> ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:${netdev}:off
> panic=1
> addmisc=setenv bootargs ${bootargs} ${misc}
> addmtd=setenv bootargs ${bootargs} ${mtdparts}
> addtty=setenv bootargs ${bootargs} console=ttymxc0,${baudrate}
> baudrate=115200
> bootargs_nfs=setenv bootargs console=ttymxc0,${baudrate} root=/dev/nfs
> ip=${ipaddr} rw nfsroot=${serverip}:${rootpath}
> bootcmd=run net_nfs
> bootdelay=3
> bootfile=/3stack/uImage
> ethact=smc911x-0
> ethaddr=00:04:9f:01:2f:9a
> ethprime=smc911x
> flash_nfs=run bootargs_nfs; nand read ${loadaddr} 0x300000 0x200000; bootm
> flash_self=run ramargs addip addtty addmtd addmisc;bootm
> ${kernel_addr} ${ramdisk_addr}
> hostname="mx35pdk"
> ipaddr=192.168.1.10
> kernel_addr_r=80800000
> load=tftp ${loadaddr} ${u-boot}
> loadaddr=0x80800000
> net_nfs=tftp ${load_addr} ${bootfile}; run bootargs_nfs; bootm ${load_addr}
> net_self_load=tftp ${kernel_addr_r} ${bootfile};tftp ${ramdisk_addr_r}
> ${ramdisk_file};
> netdev=eth0
> nfsargs=setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath}
> ramargs=setenv bootargs root=/dev/ram rw
> ramdisk_file="mx35pdk"/uRamdisk
> rootpath=/opt/eldk-5.2.1/armv6/rootfs-qte-sdk
> serverip=192.168.1.1
> stderr=serial
> stdin=serial
> stdout=serial
> u-boot="mx35pdk"/u-boot.bin
> uboot_addr=0xa0000000
> upd=if run load;then echo Updating u-boot;if run update;then echo
> U-Boot updated;else echo Error updating u-boot !;echo Board without
> bootloader !!;fi;else echo U-Boot not downloaded..exiting;fi
> update=protect off ${uboot_addr} +40000;erase ${uboot_addr}
> +40000;cp.b ${loadaddr} ${uboot_addr} ${filesize}
>
>
> Doing changes to the environment is not possible, the command
> "saveenv" ends up with an endless loop of the following message:
>
> MX35 U-Boot > saveenv
> Saving Environment to Flash...
> Protect off A00A0000 ... A00BFFFF
> Un-Protecting sectors 5..5 in bank 1
> fwc addr a00a0000 cmd 70 0070 16bit x 16 bit
> flash_is_busy: 0
> . done
> Un-Protected 1 sectors
> Protect off A0080000 ... A009FFFF
> Un-Protecting sectors 4..4 in bank 1
> fwc addr a0080000 cmd 70 0070 16bit x 16 bit
> flash_is_busy: 0
> . done
> Un-Protected 1 sectors
> EXPORT  table = 87fe94c4, htab.size = 521, htab.filled = 36, size = 131067
> Unsorted: n=36
>           0: 87e90704 ==> ramargs    => setenv bootargs root=/dev/ram rw
>           1: 87e90854 ==> net_nfs    => tftp ${load_addr} ${bootfile};
> run bootargs_nfs; bootm ${load_addr}
>           2: 87e90950 ==> nfsargs    => setenv bootargs root=/dev/nfs
> rw nfsroot=${serverip}:${rootpath}
>           3: 87e909d4 ==> flash_nfs  => run bootargs_nfs; nand read
> ${loadaddr} 0x300000 0x200000; bootm
>           4: 87e90a34 ==> addip_dyn  => setenv bootargs ${bootargs} ip=dhcp
>           5: 87e90a70 ==> addmisc    => setenv bootargs ${bootargs} ${misc}
>           6: 87e90b24 ==> ethprime   => smc911x
>           7: 87e90cec ==> ethaddr    => 00:04:9f:01:2f:9a
>           8: 87e90e00 ==> stdin      => serial
>           9: 87e90e60 ==> baudrate   => 115200
>          10: 87e90f44 ==> addip      => if test -n ${ipdyn};then run
> addip_dyn;else run addip_sta;fi
>          11: 87e90fa4 ==> serverip   => 192.168.1.1
>          12: 87e91028 ==> addip_sta  => setenv bootargs ${bootargs}
> ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:${netdev}:off
> panic=1
>          13: 87e91040 ==> upd        => if run load;then echo Updating
> u-boot;if run update;then echo U-Boot updated;else echo Error updating
> u-boot !;echo Board without bootloader !!;fi;else echo U-Boot not
> downloaded..exiting;fi
>          14: 87e91058 ==> ethact     => smc911x-0
>          15: 87e910dc ==> bootcmd    => run net_nfs
>          16: 87e910f4 ==> update     => protect off ${uboot_addr}
> +40000;erase ${uboot_addr} +40000;cp.b ${loadaddr} ${uboot_addr}
> ${filesize}
>          17: 87e91118 ==> kernel_addr_r => 80800000
>          18: 87e912bc ==> bootfile   => /3stack/uImage
>          19: 87e91340 ==> stderr     => serial
>          20: 87e913d0 ==> net_self_load => tftp ${kernel_addr_r}
> ${bootfile};tftp ${ramdisk_addr_r} ${ramdisk_file};
>          21: 87e914fc ==> loadaddr   => 0x80800000
>          22: 87e915d4 ==> load       => tftp ${loadaddr} ${u-boot}
>          23: 87e915e0 ==> bootdelay  => 3
>          24: 87e91664 ==> rootpath   =>
> /opt/eldk-5.2.1/armv6/rootfs-qte-sdk
>          25: 87e9173c ==> flash_self => run ramargs addip addtty
> addmtd addmisc;bootm ${kernel_addr} ${ramdisk_addr}
>          26: 87e91850 ==> stdout     => serial
>          27: 87e91898 ==> addmtd     => setenv bootargs ${bootargs}
> ${mtdparts}
>          28: 87e918f8 ==> ramdisk_file => "mx35pdk"/uRamdisk
>          29: 87e91928 ==> hostname   => "mx35pdk"
>          30: 87e91ad8 ==> addtty     => setenv bootargs ${bootargs}
> console=ttymxc0,${baudrate}
>          31: 87e91af0 ==> u-boot     => "mx35pdk"/u-boot.bin
>          32: 87e91e68 ==> ipaddr     => 192.168.1.10
>          33: 87e91eec ==> bootargs_nfs => setenv bootargs
> console=ttymxc0,${baudrate} root=/dev/nfs ip=${ipaddr} rw
> nfsroot=${serverip}:${rootpath}
>          34: 87e91ef8 ==> uboot_addr => 0xa0000000
>          35: 87e91f34 ==> netdev     => eth0
> Erasing Flash... A0080000 ... A009FFFF ...Erase Flash from 0xa0080000
> to 0xa009ffff in Bank # 1
> fwc addr a0080aaa cmd aa 00aa 16bit x 16 bit
> fwc addr a0080554 cmd 55 0055 16bit x 16 bit
> fwc addr a0080aaa cmd 80 0080 16bit x 16 bit
> fwc addr a0080aaa cmd aa 00aa 16bit x 16 bit
> fwc addr a0080554 cmd 55 0055 16bit x 16 bit
> fwc addr a0080000 cmd 30 0030 16bit x 16 bit
> flash_is_busy: 1
> flash_is_busy: 1
> flash_is_busy: 1
> ...
>
> Could you please give me some hits what to do next?

Can you please try to remove  #define CONFIG_ENV_IS_IN_FLASH and insert:

#define CONFIG_SYS_NO_FLASH

#define CONFIG_ENV_OFFSET      (6 * 64 * 1024)
#define CONFIG_ENV_SIZE        (8 * 1024)
#define CONFIG_ENV_IS_IN_MMC
#define CONFIG_SYS_MMC_ENV_DEV

Cced Stefano in case he has any suggestions.

Regards,

Fabio Estevam

[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[Stefano Babic]

On 02/08/2012 14:55, Fabio Estevam wrote:
> On 8/2/12, Michael Hornung <mhornung.linux@gmail.com> wrote:
>> Hi Fabio,
>>

Hi Michael,


>> Starting kernel ...
>>
>> Uncompressing
>> Linux......................................................................................................................................
>> done, booting the kernel.
>>
>> And that's it, no more kernel output.

At this point, there is no difference for u-boot starting the kernel if
it has booted in external or internal mode. It seems an unrelated issue.

On mx35pdk you can reset the board without powerd off. You should check
the address in kernel for the log buffer (__log_buf in System.map) and
then check it after a reset in u-boot with the "md" command. If we are
lucky, the RAM does not lose its values. Better will be if you have a
JTAG debugger and can you check inside memory directly when the kernel
hangs without rebooting.

>>
>> Here my environment
>>
>> addip=if test -n ${ipdyn};then run addip_dyn;else run addip_sta;fi
>> addip_dyn=setenv bootargs ${bootargs} ip=dhcp
>> addip_sta=setenv bootargs ${bootargs}
>> ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}:${netdev}:off
>> panic=1
>> addmisc=setenv bootargs ${bootargs} ${misc}
>> addmtd=setenv bootargs ${bootargs} ${mtdparts}
>> addtty=setenv bootargs ${bootargs} console=ttymxc0,${baudrate}
>> baudrate=115200
>> bootargs_nfs=setenv bootargs console=ttymxc0,${baudrate} root=/dev/nfs

Depending on the kernel version, ttymxc0 could be wrong. Have you
checked it ?

Best regards,
Stefano Babic

-- 
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
=====================================================================

[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[Michael Hornung]

Hi Fabio,

>>
>
> Didn't you also had to remove the init_sdram call in lowlevel_init.S ?
>

No, I didn't change it since it seems not to make any difference. Hope
we're talking about the same, I changed the following and it did not
make any difference whether it was commented or not:

+++ b/board/freescale/mx35pdk/lowlevel_init.S

 init_sdram_start:
        /*init_sdram*/
-       setup_sdram
+/*     setup_sdram */


>>
>> Then I did the following change:
>>
>> +++ b/board/freescale/mx35pdk/mx35pdk.c
>>
>>         size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
>> -       size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
>> +        size2 = 0;
>> +       /*size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);*/
>
> I think we should not touch this.
>

Hey, but it works (halfways) :-)


>> Could you please give me some hits what to do next?
>
> Can you please try to remove  #define CONFIG_ENV_IS_IN_FLASH and insert:
>
> #define CONFIG_SYS_NO_FLASH
>
> #define CONFIG_ENV_OFFSET      (6 * 64 * 1024)
> #define CONFIG_ENV_SIZE        (8 * 1024)
> #define CONFIG_ENV_IS_IN_MMC
> #define CONFIG_SYS_MMC_ENV_DEV

A first quick try ended up with the following (I'll try harder today:

In file included from cmd_bootm.c:81:0:
/home/hmi/source/bootloader/u-boot/include/mtd/cfi_flash.h:174:22:
error: unknown type name 'flash_info_t'
/home/hmi/source/bootloader/u-boot/include/mtd/cfi_flash.h:174:43:
error: unknown type name 'flash_sect_t'
cmd_bootm.c:82:1: error: unknown type name 'flash_info_t'
cmd_bootm.c: In function 'do_imls':
cmd_bootm.c:1164:2: error: unknown type name 'flash_info_t'
cmd_bootm.c:1171:11: error: request for member 'flash_id' in something
not a structure or union
cmd_bootm.c:1171:25: error: 'FLASH_UNKNOWN' undeclared (first use in
this function)
cmd_bootm.c:1171:25: note: each undeclared identifier is reported only
once for each function it appears in
cmd_bootm.c:1173:23: error: request for member 'sector_count' in
something not a structure or union
cmd_bootm.c:1175:22: error: request for member 'start' in something
not a structure or union
make[1]: *** [cmd_bootm.o] Error 1
make[1]: Leaving directory `/home/hmi/source/bootloader/u-boot/common'
make: *** [common/libcommon.o] Error 2


The changes I made are as follows:


+++ b/include/configs/mx35pdk.h

+/*
 #define CONFIG_ENV_SECT_SIZE   (128 * 1024)
 #define CONFIG_ENV_SIZE                CONFIG_ENV_SECT_SIZE
+*/

-#define CONFIG_ENV_IS_IN_FLASH
+/* #define CONFIG_ENV_IS_IN_FLASH */
+#define CONFIG_SYS_NO_FLASH
+#define CONFIG_ENV_OFFSET      (6 * 64 * 1024)
+#define CONFIG_ENV_SIZE        (8 * 1024)
+#define CONFIG_ENV_IS_IN_MMC
+#define CONFIG_SYS_MMC_ENV_DEV


Then I tried a second run with commented #define CONFIG_SYS_NO_FLASH:

+/* #define CONFIG_SYS_NO_FLASH */


This ended up with the following:


no-stack-protector -Wno-format-nonliteral -Wno-format-security
-fstack-usage     -o env_mmc.o env_mmc.c -c
env_mmc.c: In function 'write_env':
env_mmc.c:90:55: error: expected expression before ',' token
env_mmc.c: In function 'saveenv':
env_mmc.c:101:9: error: too few arguments to function 'find_mmc_device'
/home/hmi/source/bootloader/u-boot/include/mmc.h:269:13: note: declared here
env_mmc.c:115:57: error: expected expression before ')' token
env_mmc.c: In function 'read_env':
env_mmc.c:134:54: error: expected expression before ',' token
env_mmc.c: In function 'env_relocate_spec':
env_mmc.c:144:9: error: too few arguments to function 'find_mmc_device'
/home/hmi/source/bootloader/u-boot/include/mmc.h:269:13: note: declared here
make[1]: *** [env_mmc.o] Error 1
make[1]: Leaving directory `/home/hmi/source/bootloader/u-boot-hmi/common'
make: *** [common/libcommon.o] Error 2


I am running Ubuntu 12.04 and ELDK 5.2.1 by the way. U-boot version is
latest from http://git.denx.de/u-boot.git


>
> Cced Stefano in case he has any suggestions.
>

Thank you very much for your help, Fabio and Stefano.

> Regards,
>
> Fabio Estevam


With best regards

Michael Hornung

[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[Stefano Babic]

On 03/08/2012 10:03, Michael Hornung wrote:
> Hi Fabio,
> 

Hi Michael,

>>>
>>
>> Didn't you also had to remove the init_sdram call in lowlevel_init.S ?
>>
> 
> No, I didn't change it since it seems not to make any difference. Hope
> we're talking about the same, I changed the following and it did not
> make any difference whether it was commented or not:
> 
> +++ b/board/freescale/mx35pdk/lowlevel_init.S
> 
>  init_sdram_start:
>         /*init_sdram*/
> -       setup_sdram
> +/*     setup_sdram */
> 

Because the RAM is already set up via the imximage.

> 
>>>
>>> Then I did the following change:
>>>
>>> +++ b/board/freescale/mx35pdk/mx35pdk.c
>>>
>>>         size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
>>> -       size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
>>> +        size2 = 0;
>>> +       /*size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);*/
>>
>> I think we should not touch this.
>>
> 
> Hey, but it works (halfways) :-)

It depends on your mx35pdk. The board can be equipped with one or two
banks. If it works commenting these lines, it means that in your
imximage.cfg you set only one bank. The setup_sdram() sets both banks.


>>> Could you please give me some hits what to do next?
>>
>> Can you please try to remove  #define CONFIG_ENV_IS_IN_FLASH and insert:
>>
>> #define CONFIG_SYS_NO_FLASH
>>
>> #define CONFIG_ENV_OFFSET      (6 * 64 * 1024)
>> #define CONFIG_ENV_SIZE        (8 * 1024)
>> #define CONFIG_ENV_IS_IN_MMC
>> #define CONFIG_SYS_MMC_ENV_DEV
> 
> A first quick try ended up with the following (I'll try harder today:

Mmhh...you had already a running u-boot - your problem is moved, because
the kernel is not correctly started.

I think you should start from this condition (the running u-boot) and
try to understand where the kernel hangs. This can be of course
something related to u-boot and in u-boot code, but trying to disable
things that worked can be completelky unrelated.

By the way, if you set CONFIG_SYS_NO_FLASH, you should also set that the
environment is embedded (that means, you have only the default) and
deactivate the flash driver (CONFIG_CFI).

Best regards,
Stefano Babic


-- 
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
=====================================================================

[U-Boot] i.MX35PDK: Starting U-Boot from serial NOR-Flash

[Hornung, Michael]

Hi Fabio,

thank you very much for your reply.

> With these values you can create a correct imximage.cfg file for mx35pdk.

Thank you, I'll try my best.

>> $ ./tools/mkimage -n ./board/freescale/mx35pdk/imximage.cfg -T 
>> imximage -e 0xA0000000 -d u-boot.bin u-boot.imx

Can you tell me which address I have to append to the -e switch of the mkimage program? I think that my choice (0xA0000000) is incorrect since it is /CS0 memory region of the WEIM. Is it 0x10000000 for internal RAM? And if so, do I have to change the following define within "include/configs/mx35pdk.h", too?

/* Set TEXT at the beginning of the NOR flash */
#define CONFIG_SYS_TEXT_BASE    0xA0000000

> So my suggestion for you is to try to boot from internal boot mode first. Try booting from SD card first as this would be easier.

Could you please give a short explanation, why it is easier to boot from SD than from serial NOR?

> Regards,

> Fabio Estevam


Thank you very much!

With best regards

Michael Hornung