Hi Eric,
Thanks for your reply. I sorted out, that the AT91Bootstrap impacts the U-Boot. See http://lists.denx.de/pipermail/u-boot/2010-August/075646.html. I am using a hardware which is based on the EK board from Atmel and I will try out the new driver patch from Reinhard to see if it helps me out.
Best regards, Alex
-----Original Message----- From: Xu, Hong [mailto:Hong.Xu@atmel.com] Sent: Monday, August 16, 2010 4:04 AM To: Schleifer, Alexander Cc: u-boot@lists.denx.de; u-boot@emk-elektronik.de Subject: RE: [U-Boot] [PATCH v2a] AT91: add SD/MMC support
Hi Alex,
Thanks to Reinhard, his previous work does well on SAM9260 SAM9G20 SAM9XE SAM9RL (I tested all of them). Since he said he'll provide a more fancy one, I'm just on hold :-)
For your issue, could you try (If you're using the original EK board from Atmel)
Remove R42
- or -
In at91_mci_hw_init() @ arch/arm/cpu/arm926ejs/at91/at91sam9260_devices.c , Add a line
at91_set_pio_input(AT91_PIO_PORTA, 2, 0);
This will let the CLK line of dataflash appear high resistance state. (By default, the CLK line of dataflash and SD slot are connected together by a 0R resistor)
BR, Eric
-----Original Message----- From: u-boot-bounces@lists.denx.de [mailto:u-boot-bounces@lists.denx.de] On Behalf Of asc0 Sent: 2010?8?13? 18:19 To: u-boot@lists.denx.de Subject: Re: [U-Boot] [PATCH v2a] AT91: add SD/MMC support
Hello! I have successfully applied your patch on a AT91SAM9G20 cpu and it reads the correct CID & CSD info. At the end of initialization the bread function fails with the following error:
mmc: bread failed, status = 0040c0e5, card status = 00000900
Does someone else received this error or have a hint on this error message?
Thanks, Alex -- View this message in context: http://old.nabble.com/-U-Boot---PATCH--AT91SAM9260-9XE%3A-add- support-for-MultiMedia-Card-Interface-%28MCI%29-tp29068839p294 27373.html Sent from the Uboot - Users mailing list archive at Nabble.com.
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