Messages in this thread | | | Date | Fri, 23 Jun 2006 12:20:05 +0200 | From | "Marcin Juszkiewicz" <> | Subject | Re: sharp zaurus sl-5500 (collie): touchscreen now works |
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Yesterday someone added following info into OpenZaurus FAQ [1]:
> Zaurus SL-5500 MMC/SDIO technical info > > For communicating with the MMC/SDIO card SL-5500 uses the LoCoMo built-in > SPI controller (secondary communication protocol) and 3 LoCoMo GPIOs > > LOCOMO_SPIMD for SPI MODE > LOCOMO_SPICT for SPI CONTROL > LOCOMO_SPIST for SPI STATUS > LOCOMO_SPITD for SPI TRANSMIT (write) > LOCOMO_SPIRD for SPI RECEIVE (read) > > LOCOMO_GPIO(13) for MMC irq / card detect > LOCOMO_GPIO(14) for MMC write protect test bit > LOCOMO_GPIO(15) for MMC power > > All these registers are 16bit, and data transfers are 8bit. On resume > the SPI MODE is set to 0x6c14, on suspend to 0x3c14. > > Useful bits in the SPI MODE register: 0x0001, 0x0040, 0x0080. > Useful bits in the SPI CONTROL register: 0x0040 and 0x0080. > > For further information read the Sandisk SD card manual. A software > implementation of the SPI MMC/SD protocol driver can be be found at > http://kiel.kool.dk/mmc.c
Maybe this will help.
1. http://openzaurus.berlios.de/FAQ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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