diff options
author | Magnus Damm <damm@opensource.se> | 2010-02-08 11:02:54 +0000 |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2010-02-09 10:34:12 +0900 |
commit | 4ae04acb81256719a71125c0f0280e2a3ad68e25 (patch) | |
tree | 88f308d4dc70e3a196cedf3ba04781e0f7a4b138 /arch/arm/mach-shmobile | |
parent | 62f60d6a37910501814c6281e6c21b485434a7f1 (diff) | |
download | op-kernel-dev-4ae04acb81256719a71125c0f0280e2a3ad68e25.zip op-kernel-dev-4ae04acb81256719a71125c0f0280e2a3ad68e25.tar.gz |
ARM: mach-shmobile: early console support using earlyprintk
Add support for early console to the SH-Mobile boards.
Simply perform an early platform probe for "earlyprintk"
to trigger the early serial console code in sh-sci.c.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/arm/mach-shmobile')
-rw-r--r-- | arch/arm/mach-shmobile/Makefile | 2 | ||||
-rw-r--r-- | arch/arm/mach-shmobile/board-ap4evb.c | 3 | ||||
-rw-r--r-- | arch/arm/mach-shmobile/board-g3evm.c | 3 | ||||
-rw-r--r-- | arch/arm/mach-shmobile/board-g4evm.c | 3 | ||||
-rw-r--r-- | arch/arm/mach-shmobile/console.c | 31 | ||||
-rw-r--r-- | arch/arm/mach-shmobile/include/mach/common.h | 1 |
6 files changed, 39 insertions, 4 deletions
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile index 88893db..800e7dd 100644 --- a/arch/arm/mach-shmobile/Makefile +++ b/arch/arm/mach-shmobile/Makefile @@ -3,7 +3,7 @@ # # Common objects -obj-y := timer.o +obj-y := timer.o console.o # CPU objects obj-$(CONFIG_ARCH_SH7367) += setup-sh7367.o clock-sh7367.o diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c index a8d815c..94b545b 100644 --- a/arch/arm/mach-shmobile/board-ap4evb.c +++ b/arch/arm/mach-shmobile/board-ap4evb.c @@ -105,9 +105,10 @@ static void __init ap4evb_map_io(void) { iotable_init(ap4evb_io_desc, ARRAY_SIZE(ap4evb_io_desc)); - /* setup early devices and clocks here as well */ + /* setup early devices, clocks and console here as well */ sh7372_add_early_devices(); sh7367_clock_init(); /* use g3 clocks for now */ + shmobile_setup_console(); } static void __init ap4evb_init(void) diff --git a/arch/arm/mach-shmobile/board-g3evm.c b/arch/arm/mach-shmobile/board-g3evm.c index b4b2027..eba2311 100644 --- a/arch/arm/mach-shmobile/board-g3evm.c +++ b/arch/arm/mach-shmobile/board-g3evm.c @@ -105,9 +105,10 @@ static void __init g3evm_map_io(void) { iotable_init(g3evm_io_desc, ARRAY_SIZE(g3evm_io_desc)); - /* setup early devices and clocks here as well */ + /* setup early devices, clocks and console here as well */ sh7367_add_early_devices(); sh7367_clock_init(); + shmobile_setup_console(); } static void __init g3evm_init(void) diff --git a/arch/arm/mach-shmobile/board-g4evm.c b/arch/arm/mach-shmobile/board-g4evm.c index 0d2948f..0ddde03 100644 --- a/arch/arm/mach-shmobile/board-g4evm.c +++ b/arch/arm/mach-shmobile/board-g4evm.c @@ -105,9 +105,10 @@ static void __init g4evm_map_io(void) { iotable_init(g4evm_io_desc, ARRAY_SIZE(g4evm_io_desc)); - /* setup early devices and clocks here as well */ + /* setup early devices, clocks and console here as well */ sh7377_add_early_devices(); sh7367_clock_init(); /* use g3 clocks for now */ + shmobile_setup_console(); } static void __init g4evm_init(void) diff --git a/arch/arm/mach-shmobile/console.c b/arch/arm/mach-shmobile/console.c new file mode 100644 index 0000000..9411a5b --- /dev/null +++ b/arch/arm/mach-shmobile/console.c @@ -0,0 +1,31 @@ +/* + * SH-Mobile Console + * + * Copyright (C) 2010 Magnus Damm + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <mach/common.h> +#include <asm/mach/map.h> + +void __init shmobile_setup_console(void) +{ + parse_early_param(); + + /* Let earlyprintk output early console messages */ + early_platform_driver_probe("earlyprintk", 1, 1); +} diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h index a12eb4d..f5986ea 100644 --- a/arch/arm/mach-shmobile/include/mach/common.h +++ b/arch/arm/mach-shmobile/include/mach/common.h @@ -2,6 +2,7 @@ #define __ARCH_MACH_COMMON_H extern struct sys_timer shmobile_timer; +extern void shmobile_setup_console(void); extern void sh7367_init_irq(void); extern void sh7367_add_early_devices(void); |