There are major differences in the clock tree of the S3C24xx family and the
more recent CPUs of the S3C family. Keep the S3C24XX clock routines separate to
avoid an ifdef hell. But also use generic function names to be able to
share drivers among the S3C family.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Start with renaming files to share them in the S3C CPU family,
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The flags in struct console_device have to be initialized
to zero. Otherwise the following can happen:
- console_register sets the initial baudrate of a new console
before we set the global console init state to CONSOLE_INIT_FULL.
- In console_baudrate_set we test whether the current console is
active which may be true because of unitialized flags.
- we then call getc() to wait for the user to accept the new settings
and we are stuck because of the CONSOLE_UNINITIALIZED state
we will never get anything from getc().
Looking back this explains some cases for me when barebox refused
to start and I really wonder why this did not become a more visible
problem before.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Enabling AUTOSYNC means enabling the auto sync feature, not rising the RTS
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
To allow for some generic io accessors introduce io.h and use
this instead of asm/io.h throughout the tree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The idea is to panic() when there is no memory available for normal
operation. Exception: code which can consume arbitrary amount of RAM
(example: files allocated in ramfs) must report error instead of panic().
This patch also fixes code which didn't check for NULL from malloc() etc.
Usage: malloc(), memalign() return NULL when out of RAM.
xmalloc(), xmemalign() always return non-NULL or panic().
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Fucntion s3c24x0_serial_flush() could behave wrong
because of missing brackets. Correct condition logic.
Problem found by sparse.
Signed-off-by: Marek Belisko <marek.belisko@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
It includes a
- driver for the internal UART
- driver for the internal NAND controller
- support to boot from NAND
- PLL handling
- SDRAM initialisation
Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>
Juergen Beisert
Sascha Hauer
Krzysztof Halasa
Marek Belisko
Jean-Christophe PLAGNIOL-VILLARD
Juergen Beisert
Sascha Hauer