Memory allocation is very simple in u-boot-v2. So, it makes also sense to
add the "operating system" emulation layer into the main memory management
source file, to keep them at one place and simple.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Don't try to be smarter than GCC. There are various better optimizations
available than to write our own. So, use the globaly available string
functions instead.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
When assert() is always defined to do nothing, the debug functions makes no
sense, because they also do nothing. Removing them shrinks the code.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Use a function prototype style as used in all other u-boot-v2 sources, too.
Also remove C++ support. We do not use C++ in this project.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
This feature is provided, to support more than u-boot-v2. But its more
confusing than helpful. Remove it and do it straight forward like all other
sources in this tree, too.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Include the board config first to be able to configure the memory management
in the documented way. If not used, the defaults are used.
On the other hand, there is no need to pollute the other source files with
these local management settings. So, move them from the header into the
C source file.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
There is no need to init variables with 0. So, move them to the bss and let
the C runtime does this job for us.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Currently all omap boards reside in boards/omap. This is
probably not a good idea as it leaves no good place to
put custom omap boards in. Anyway, make the boards compile
again until someone provides a better solution.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The RESET command was removed during the nand_imx.c driver rework.
The reset commant is necessary in order to get Micron Nand running
as they need a RESET command before being able to get any command.
Signed-off-by: Eric Benard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
FMCR is (*((volatile u32 *)(x))) (0x10027814) and thus this leads
to a data abort.
Signed-off-by: Eric Benard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
loop in i2c_imx_acked() in low bit rates it takes some time until the
ACK comes in.
Also add a delay before polling for bus not busy in i2c_imx_read.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
During i2c read the original pattern was:
1. write i2c slave address
2. wait for transmit complete + clear IIF
3. wait for receive acknowledge
4. wait for IIF interrupt
Due to the clear of the I2SR register, the IIF flag was cleared, too. So
in step 4 the Interrupt wasn't detected. To fix this problem, we move
the clean of IIF before the writing of the slave address. So that it
looks this way:
0. clear IIF
1. write i2c slave address
2. wait for transmit complete
3. wait for receive acknowledge
4. wait for IIF interrupt
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The PLL initialisation does not work properly if run from
SDRAM. Move the initialisation code to lowlevel init which
is run in NFC RAM.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- Add support for booting from NAND
- Add support for internal Boot mode
- Add I2C PMIC support
- Enable FEC Ethernet controller
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The flash header is used on different i.MXs other than the
i.MX25, so rename it. Also, add a possibility to put a flash
header on different offsets (0x100, 0x400 and 0x1000), needed
for different boot mediums.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Juergen Beisert
Sascha Hauer
Juergen Beisert
Eric Benard
Marc Kleine-Budde