arm-trusted-firmware

Nishanth Menon 861ac52a7e uart: 16550: Fix getc tbz check for RDR status is to check for a bit being zero. Unfortunately, we are using a mask rather than the bit position. Further as per http://www.ti.com/lit/ds/symlink/pc16550d.pdf (page 17), LSR register bit 0 is Data ready status (RDR), not bit position 2. Update the same to match the specification. Reported-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com>	8 years ago
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uart	uart: 16550: Fix getc	8 years ago

Nishanth Menon 861ac52a7e uart: 16550: Fix getc

tbz check for RDR status is to check for a bit being zero.
Unfortunately, we are using a mask rather than the bit position.

Further as per http://www.ti.com/lit/ds/symlink/pc16550d.pdf (page 17),
LSR register bit 0 is Data ready status (RDR), not bit position 2.

Update the same to match the specification.

Reported-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>

8 years ago

uart

uart: 16550: Fix getc

8 years ago