Hello.
On 11/4/2015 1:50 PM, John Crispin wrote:
MT7688 has several uarts that can be used for console. There are several
boards in the wild, that use ttyS1 or ttyS2. This patch applies a simply
autodetection routine to figure out which ttyS the bootloader used as
console. The uarts come up in 6 bit mode by default. The bootloader will
have set 8 bit mode on the console. Find that 8bit tty and use it.
Signed-off-by: John Crispin <blogic@xxxxxxxxxxx>
---
arch/mips/ralink/early_printk.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/mips/ralink/early_printk.c b/arch/mips/ralink/early_printk.c
index 255d695..36c2468 100644
--- a/arch/mips/ralink/early_printk.c
+++ b/arch/mips/ralink/early_printk.c
[...]
@@ -47,8 +49,32 @@ static inline int soc_is_mt7628(void)
(__raw_readl(chipid_membase) == MT7628_CHIP_NAME1);
}
+static inline void find_uart_base(void)
^^^^^^
We let gcc figure it out itself these days.
[...]
MBR< Sergei
