Warner Losh d8927f1396 MFp4: ... Make serial ports more robust and reliable. Make non-console ports work. This might have broken skyeye stuff. o Introduce ping-pong receive buffers. o Use DMA to copy characters directly into memory. o Support baud rates other than 115200 o Use 1 stop bit when 1 stop bit is requested (otherwise 2 were used, which caused dropped characters when received in bursts). o Use 1.5 stop bits for 5-bit bytes, and 2 stop bits otherwise when 2 stop bits were requested. o Actually update line parameters. o Fix comments o Move init into attach o Tweaks to TX interrupt registers to get them reliable and non-storming. o harvest data in ipend since the latency between it and the callback was too long. This likely is how it should be, I don't know why I deferred things to the callback before. o disable all interrupts in console init. We don't want interrupts until we turn on an ISR. o cosmetic tweaks o Automatically detect of the TIMEOUT interrupt is supported. If so, use it so we get better CPU utilization. Otherwise do a character at a time RX. Good news here is that it seems we have enough CPU and low enough fast interrupt latency to do this reliably. o Don't read USART_CR. It is a write-only register. o start to implement bus_ioctl. Do BAUD now...		2006-07-02 03:45:33 +00:00
..
arm	There's no need to allocate that much phdr/shdr from the stack.	2006-06-23 22:45:35 +00:00
at91	MFp4:	2006-07-02 03:45:33 +00:00
compile
conf	comment out twi for now: no iicbus in KB920X: it breaks booting	2006-06-17 23:34:59 +00:00
include	Add partial pmap locking.	2006-06-06 04:32:20 +00:00
sa11x0	Don't forget to define uart_sa1110_vaddr.	2006-06-21 10:56:59 +00:00
xscale	Remove a bogus, useless, "i++".	2006-06-06 20:47:59 +00:00