2018-03-29 13:10:01 +00:00
|
|
|
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
|
|
|
|
Subject: [PATCH] Revert "earlycon: initialise baud field of earlycon device
|
|
|
|
structure"
|
|
|
|
MIME-Version: 1.0
|
|
|
|
Content-Type: text/plain; charset=UTF-8
|
|
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
|
|
|
|
This reverts commit 31cb9a8575ca04f47ea113434d4782b695638b62.
|
|
|
|
|
|
|
|
It broke earlycon on BCM5301X. Using:
|
|
|
|
1) uartclk 1843200 (BASE_BAUD * 16)
|
|
|
|
2) early_console_dev.baud 115200
|
|
|
|
results in init_port() calculating UART divisor 1. That's a wrong value
|
|
|
|
(default one is 54) that breaks serial console output.
|
|
|
|
|
|
|
|
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
|
|
|
|
---
|
|
|
|
|
|
|
|
--- a/drivers/tty/serial/earlycon.c
|
|
|
|
+++ b/drivers/tty/serial/earlycon.c
|
2018-05-17 16:41:26 +00:00
|
|
|
@@ -285,12 +285,7 @@ int __init of_setup_earlycon(const struc
|
2018-03-29 13:10:01 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
- val = of_get_flat_dt_prop(node, "current-speed", NULL);
|
|
|
|
- if (val)
|
|
|
|
- early_console_dev.baud = be32_to_cpu(*val);
|
|
|
|
-
|
|
|
|
if (options) {
|
|
|
|
- early_console_dev.baud = simple_strtoul(options, NULL, 0);
|
|
|
|
strlcpy(early_console_dev.options, options,
|
|
|
|
sizeof(early_console_dev.options));
|
|
|
|
}
|