microblaze: Add support for early console on mdm
Support mdm early console:
- extend time for retries
- add mdm compatible property
Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/arch/microblaze/kernel/early_printk.c b/arch/microblaze/kernel/early_printk.c
index e21390d..d26d92d 100644
--- a/arch/microblaze/kernel/early_printk.c
+++ b/arch/microblaze/kernel/early_printk.c
@@ -35,7 +35,7 @@
* we'll never timeout on a working UART.
*/
- unsigned retries = 10000;
+ unsigned retries = 1000000;
/* read status bit - 0x8 offset */
while (--retries && (in_be32(base_addr + 8) & (1 << 3)))
;
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index 18d9371..977484a 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -88,7 +88,8 @@
}
if ((strncmp(p, "xlnx,xps-uartlite", 17) == 0) ||
(strncmp(p, "xlnx,opb-uartlite", 17) == 0) ||
- (strncmp(p, "xlnx,axi-uartlite", 17) == 0)) {
+ (strncmp(p, "xlnx,axi-uartlite", 17) == 0) ||
+ (strncmp(p, "xlnx,mdm", 8) == 0)) {
unsigned int *addrp;
*(u32 *)data = UARTLITE;