Quote:
Originally Posted by yifanlu
Uboot is on the mmc along with the kernel, serial/Mac address, and root partition. They can all be flashed from within Uboot and USB download mode.
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If uboot is in mmc then mmc0 must start at some offset in the mmc device. Many devices with uboot load it from a serial memory device (SPI or i2c). The kindle must be different in how it boots up. I thought it was uboot that initialized and mounted the mmc device.
Of course you probably actually read the uboot source code from amazon. I was just going by how other uboot devices operate.