Jongsung Kim <neidhard.kim@xxxxxxx> : > Stephen Warren <swarren@xxxxxxxxxxxxx> : >>> All r1p5 have 32-byte FIFO depth and it's not configurable. From the >>> PL011 >>> TRM: >>> >>> r1p4-r1p5 Contains the following differences in functionality: >>> * The receive and transmit FIFOs are increased to a depth of 32. >>> * The Revision field in the UARTPeriphID2 Register on page 3-24 >>> bits [7:4] now reads back as 0x3. >> >> Well, that certainly isn't true in practice. I think we should revert >> this commit until we can determine what the problem is. > > I asked to the ARM support about this. Waiting for reply.. ARM support said they doesn't have information about BCM2835 UART. Does anyone have a communication channel to Broadcom? It takes time for me to get contact point to Broadcom.. (I'm trying) However, ARM support also said: "If the Broadcom part definitely has 16-deep FIFOs, it cannot be based on a PL011 r1p5, so I might guess that Broadcom have just referenced the latest version of the documentation on our website, but have actually implemented an earlier version." -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
