Messages in this thread | | | Date | Wed, 3 May 2006 03:30:14 -0700 | From | Maximus <> | Subject | sdio - ocr confusions |
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Hi, im trying to develop and sdio driver modifying the existing SD card driver. Im using an OMAP processor and a Wifi SDIO Card.
I have send CMD 5 to get the OCR.
i do get the EOC Status bit set.
I do get the response resp[0] => 0x10fff000 (Contents of RSP6 & RSP7)
According to this -> ocr => 0xfff000 (right most 24 bits) mem present => 0 No of IO functions => 1
I am using a Wifi SDIO Card - am not sure if these values are correct?.
Am i doing something wrong here?
I understand from the SDIO specs that only one of the bits (0-24) must be set.
How do u interpreset an ocr of 0xfff000 ?.
#define MMC_RSP_R4 (MMC_RSP_SHORT|MMC_RSP_CRC) #define SDIO_IO_SEND_OP_COND (5)
cmd.opcode = SDIO_IO_SEND_OP_COND ; cmd.arg = 0; cards.flags = MMC_RSP_R4
Is this wrong?
Regards, Jo
MMC1: set_ios: clock 0Hz busmode 1 powermode 0 Vdd 0.00 MMC1: set_ios: clock 0Hz busmode 1 powermode 0 Vdd 0.00 MMC1: set_ios: clock 400000Hz busmode 1 powermode 1 Vdd 0.21 MMC1: set_ios: clock 400000Hz busmode 1 powermode 1 Vdd 0.21 MMC1: set_ios: clock 400000Hz busmode 1 powermode 2 Vdd 0.21 MMC1: set_ios: clock 400000Hz busmode 1 powermode 2 Vdd 0.21
MMC: starting cmd 05 arg 00000000 flags 00000009 MMC1: CMD5, argument 0x00000000, 32-bit response, CRC MMC IRQ 0001 (CMD 5): EOC MMC1: Response 10fff000 MMC1: End request, err 0 MMC: req done (05): 0: 10fff000 00000000 00000000 00000000 MC1: set_ios: clock 0Hz busmode 1 powermode 0 Vdd 0.00 MMC1: set_ios: clock 0Hz busmode 1 powermode 0 Vdd 0.00 - 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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