f83ed22cb6
clients. Mask RX interrupts while grabbed on the atmel serial driver. This UART interrupts every character. When interrupts are enabled at the mountroot> prompt, this means the ISR eats the characters. Rather than try to create a cooperative buffering system for the low level kernel console, instead just mask out the ISR. For NS8250 and decsendents this isn't needed, since interrupts only happen after 14 or more characters (depending on the fifo settings). Plumb such that these are optional so there's no change in behavior for all the other UART clients. ddb worked on this platform because all interrupts were disabled while it was running, so this problem wasn't noticed. The mountroot> issue has been around for a very very long time. MFC after: 3 days |
||
---|---|---|
.. | ||
allwinner | ||
arm | ||
at91 | ||
broadcom/bcm2835 | ||
conf | ||
econa | ||
freescale | ||
include | ||
lpc | ||
mv | ||
rockchip | ||
s3c2xx0 | ||
sa11x0 | ||
samsung/exynos | ||
tegra | ||
ti | ||
versatile | ||
xilinx | ||
xscale |