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News: Glomation introduced new wireless ready low cost GESBC-9260S

[faumarz]

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I want to activate the AT91 hardware watchdog on the GESBC-9260S board (32MB or 64MB RAM).

I've seen in the following thread:
http://glomation.net/smf/index.php/topic,91.0.html
that modified u-boot and bootstrap are needed, and a kernel configuration.
But the files referred in the thread above are called "u-boot64MB.bin" and "u-boot128MB.bin", so I suppose that they are made for the GESBC-9260 board (64MB/128MB options available) and not for the GESBC-9260S (32MB/64MB options available).

Can I use the file "u-boot64MB.bin" and "nandflash_at91sam9260ek64MB.bin" in a GESBC-9260S board with 32MB or 64MB RAM?

Does Glomation provide a set of those files also specifically for GESBC-9260S?

By the way: in case I'd need to modify myself the u-boot and bootstrap in order to activate the watchdog (or for some other reason), does Glomation provide any GESBC-9260S specific board patch for ATMEL bootstrap source code and U-Boot source code?
Or is it enough to use the AT91SAM9260-EK general configuration?


Thank you,

Fausto

[admin]

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The 9260 bootstrap code can not be used on the 9260S.  The SDRAM setup function must be modified to use 16 bit data bus in the at91sam9260ek.c file,

   sdram_init(   AT91C_SDRAMC_NC_9  |
            AT91C_SDRAMC_NR_13 |
            AT91C_SDRAMC_CAS_2 |
            AT91C_SDRAMC_NB_4_BANKS |
            AT91C_SDRAMC_DBW_16_BITS |
            AT91C_SDRAMC_TWR_2 |
            AT91C_SDRAMC_TRC_7 |
            AT91C_SDRAMC_TRP_2 |
            AT91C_SDRAMC_TRCD_2 |
            AT91C_SDRAMC_TRAS_5 |
            AT91C_SDRAMC_TXSR_8,      /* Control Register */
            (MASTER_CLOCK * 7)/1000000,   /* Refresh Timer Register */
            AT91C_SDRAMC_MD_SDRAM);      /* SDRAM (no low power)   */


The same factory installed U-boot can be used on both 32MB and 64MB version but it will always report 32MB at U-boot start up.  The mem=XXMB can be added to the U-boot bootargs environment variable to pass the correct memory size to the kernel.  The memory size if a fixed define statement in U-boot.  It can be modified to match the board if the false boot up display is undesirable.

[faumarz]

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So, in order to activate the hardware watchdog on the GESBC-9260S board I have to:

1) Modify the bootstrap code to use the watchdog and 16 bit data bus, and compile it
2) Modify the u-boot code (configured for AT91SAM9260-EK) to use the watchdog, and compile it (factory installed U-Boot version is 1.3.3, so I will use the same)
3) Modify the kernel configuration to use the watchdog
4) Load the new bootstrap and u-boot with SAM-BA
5) Modify the u-boot environment variable to use the watchdog
6) Load the new kernel (with mem=XXMB option if on 64MB board)

It's right?

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#5 is not needed.