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7798f6dbd5
At some point, a confusion arose about the use of the bit definitions in host_caps for bus widths, and the value in ext_csd. By coincidence, a simple shift could convert between one and the other: MMC_MODE_1BIT = 0, EXT_CSD_BUS_WIDTH_1 = 0 MMC_MODE_4BIT = 0x100, EXT_CSD_BUS_WIDTH_4 = 1 MMC_MODE_8BIT = 0x200, EXT_CSD_BUS_WIDTH_8 = 2 However, as host_caps is a bitmask of supported things, there is not, in fact, a one-to-one correspondence. host_caps is capable of containing MODE_4BIT | MODE_8BIT, so nonsensical things were happening where we would try to set the bus width to 12. The new code clarifies the very different namespaces: host_caps/card_caps = bitmask (MMC_MODE_*) ext CSD fields are just an index (EXT_CSD_BUS_WIDTH_*) mmc->bus_width integer number of bits (1, 4, 8) We create arrays to map between the namespaces, like in Linux. Signed-off-by: Andy Fleming <afleming@freescale.com> Tested-by: Jaehoon Chung <jh80.chung@samsung.com> Tested-by: Stephen Warren <swarren@nvidia.com> |
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| .. | ||
| bios_emulator | ||
| block | ||
| bootcount | ||
| dfu | ||
| dma | ||
| fpga | ||
| gpio | ||
| hwmon | ||
| i2c | ||
| input | ||
| misc | ||
| mmc | ||
| mtd | ||
| net | ||
| pci | ||
| pcmcia | ||
| power | ||
| qe | ||
| rtc | ||
| serial | ||
| spi | ||
| tpm | ||
| twserial | ||
| usb | ||
| video | ||
| watchdog | ||