Division functionality for cores that dont have divide hardware.
Cortex a5 doesnt support hardware division such as sdiv and udiv commands.
This commit adds a software division function in assembly as well as include
appropriate files for software divison.
The software division algorithm is a modified version obtained from:
http://www.keil.com/support/man/docs/armasm/armasm_dom1359731155623.htm
Change-Id: Ib405a330da5f1cea1e68e07e7b520edeef9e2652
Signed-off-by: Usama Arif <usama.arif@arm.com>
diff --git a/drivers/arm/pl011/aarch32/pl011_console.S b/drivers/arm/pl011/aarch32/pl011_console.S
index ae613b1..e9f95f2 100644
--- a/drivers/arm/pl011/aarch32/pl011_console.S
+++ b/drivers/arm/pl011/aarch32/pl011_console.S
@@ -63,7 +63,14 @@
/* Program the baudrate */
/* Divisor = (Uart clock * 4) / baudrate */
lsl r1, r1, #2
+#if (ARM_ARCH_MAJOR == 7) && !defined(ARMV7_SUPPORTS_VIRTUALIZATION)
+ push {r0,r3}
+ softudiv r0,r1,r2,r3
+ mov r1, r0
+ pop {r0,r3}
+#else
udiv r2, r1, r2
+#endif
/* IBRD = Divisor >> 6 */
lsr r1, r2, #6
/* Write the IBRD */