Commit ca12adc8 authored by Michal Simek's avatar Michal Simek
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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: default avatarMichal Simek <monstr@monstr.eu>
parent 2aa8e375

arch/microblaze/kernel/early_printk.c

+1 −1
Original line number Diff line number Diff line
@@ -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)))

		;

arch/microblaze/kernel/prom.c

+2 −1
Original line number Diff line number Diff line
@@ -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;