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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>
This commit is contained in:
Michal Simek 2011-04-06 13:06:45 +02:00
parent 2aa8e37596
commit ca12adc8ca
2 changed files with 3 additions and 2 deletions
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2
arch/microblaze/kernel/early_printk.c
View File

@ -35,7 +35,7 @@ static void early_printk_uartlite_putc(char c)
* 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)))
;

3
arch/microblaze/kernel/prom.c
View File

@ -88,7 +88,8 @@ int __init early_init_dt_scan_chosen_serial(unsigned long node,
}
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;