Messages in this thread | | | Date | Thu, 2 Oct 2008 20:33:30 +0300 | From | "Kim B. Heino" <> | Subject | Re: [PATCH] add support for ST M41T94 SPI RTC (patch rev. 3) |
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> I have AT91SAM9260-based board, kernel is 2.6.26.3.
I'm using my RTC-patch with the same CPU. Custom AT91SAM9260 board, external RTC because of AT's errata...
> M41T94 is connected on SPI channel 1, chip select 0. I've applied > Kim's patch and added SPI device in board-sam9260ek.c
> { /* External RTC */ > .modalias = "rtc-m41t94", > .chip_select = 0, > .max_speed_hz = 2 * 1000 * 1000, > .bus_num = 1, > },
I'm using it with ".max_speed_hz = 1 * 1000 * 1000," instead of 2 MHz. Can you try with slower speed? My patch (rev 3) and this small ek_spi_devices[] modification should be enough.
I have it on bus = 0, chip_select = 1, so I've also removed dataflash parts from ek_spi_devices[] (we're using NOR flash). But for you this is not needed.
I also have a patch to add support for M41T94's watchdog timer. It's not clean enough to be submitted upstreams yet. If you need it I can email it to you.
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