Lines Matching refs:rx
17 .macro addruart, rx, tmp
18 mrc p15, 0, \rx, c1, c0
19 tst \rx, #1 @ MMU enabled?
20 mov \rx, #0x00000700 @ offset from base
21 orreq \rx, \rx, #0x80000000 @ physical base
22 orrne \rx, \rx, #0xf8000000 @ virtual base
25 .macro senduart,rd,rx
26 strb \rd, [\rx] @ DATA
29 .macro busyuart,rd,rx @ spin while busy
30 1001: ldr \rd, [\rx, #0x10] @ STATUS
35 .macro waituart,rd,rx @ wait for Tx FIFO room
36 1001: ldrb \rd, [\rx, #0x10] @ STATUS