forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

serial: earlycon: add DT support

Browse source 
This adds the infrastructure to generic earlycon for earlycon setup
using DT. The actual setup is not enabled until a following commit to
add the FDT parsing.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Grant Likely <grant.likely@linaro.org>
This commit is contained in:
Rob Herring 2014-03-27 08:06:16 -05:00
parent 54196ccbe0
commit b0b6abd34c
3 changed files with 37 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

6
include/linux/serial_core.h
View file

@ -294,6 +294,9 @@ struct earlycon_device {
int setup_earlycon(char *buf, const char *match,
int (*setup)(struct earlycon_device *, const char *));
extern int of_setup_earlycon(unsigned long addr,
int (*setup)(struct earlycon_device *, const char *));
#define EARLYCON_DECLARE(name, func) \
static int __init name ## _setup_earlycon(char *buf) \
{ \
@ -301,6 +304,9 @@ static int __init name ## _setup_earlycon(char *buf) \
} \
early_param("earlycon", name ## _setup_earlycon);
#define OF_EARLYCON_DECLARE(name, compat, fn) \
_OF_DECLARE(earlycon, name, compat, fn, void *)
struct uart_port *uart_get_console(struct uart_port *ports, int nr,
struct console *c);
void uart_parse_options(char *options, int *baud, int *parity, int *bits,