The i.MX Processors support two different boot modes, the internal
boot mode and the external boot mode. Traditionally the external
NAND boot mode is handled in drivers/mtd/nand and the internal
boot mode is handled in arch/arm/mach-imx. This patch consolidates
the handling of both boot modes in arch/arm/mach-imx so that
the user does not have to look in the mtd kconfig section for
booting from NAND. Also, selecting between internal and external
boot mode now is a clear choice.
The external NAND boot mode has been independent of the mtd nand
driver, but as the code was contained in the NAND driver it was
not possible to support booting from NAND without a mtd nand driver.
This is changed with this patch.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Also adapt the config file to the default environment.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
With this patch barebox can now be booted from RAM, NOR and NAND on the
mini2440 platform. 'CONFIG_S3C24XX_NAND_BOOT' must still be 'y' to be able to
boot from NAND.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The default configuration of the mini2440 in the current 2.6.37 kernel uses
a flash based BBT. So, the barebox for the mini2440 must also use one, to be
in sync with the kernel about bad blocks in the flash.
Due to the used OOB layout, the generic BBT description coming with the
framework can be used.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Without this modification saving a modified environment ends with:
mini2440:/ saveenv
saving environment
could not open /dev/env0: Read-only file system
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is required in order to enable booting from NAND, when there is no
other first level bootlader.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
If the SDRAM type will change in the future, only the 'config.h' must be
adapted to the new settings. The real size will be read back from this setting.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is required in order to enable booting from NAND and to avoid any visible
garbage on the screen until the pins are really set.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is required in order to enable booting from NAND and using the generic
S3C2440 setup routines.
Two types of SDRAM devices are known to be shipped by FriendlyARM. This config
should work on both of them. But it is really tested only for the HY57V561620
type.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is required in order to enable booting from NAND and using the generic
S3C2440 setup routines.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The default configuration of the current 2.6.37 kernel uses a flash based BBT.
So, barebox must also use one, to be in sync with the kernel about bad blocks
in the flash.
Due to the used OOB layout, the generic BBT description coming with the
framework can be used.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
There is no rule how to connect the SDRAMs to the two clocks signales the CPU
provides. Some boards are using them on a per bank base, some others on a per
chip base. So, the check for the enabled second clock cannot be used to detect
if the second SDRAM bank is populated.
A better way is to check the MT bits of the second SDRAM bank register. When
the init code sets these bits to '00' the second bank is not used for SDRAM
and gets ignored.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
At least partly. We have pads in barebox that we do
not have in the kernel. Also, this with this patch we
do not set the sion bit which the kernel does.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Without this patch (against next) I get this:
rsc@thebe:barebox$ make ARCH=arm CROSS_COMPILE=<path>/arm-v5te-linux-gnueabi- menuconfig
HOSTCC scripts/kconfig/lxdialog/checklist.o
HOSTCC scripts/kconfig/lxdialog/inputbox.o
HOSTCC scripts/kconfig/lxdialog/menubox.o
HOSTCC scripts/kconfig/lxdialog/textbox.o
HOSTCC scripts/kconfig/lxdialog/util.o
HOSTCC scripts/kconfig/lxdialog/yesno.o
HOSTCC scripts/kconfig/mconf.o
HOSTLD scripts/kconfig/mconf
scripts/kconfig/mconf Kconfig
warning: (ARCH_IMX25 && ARCH_IMX27 && ARCH_IMX35 && ARCH_IMX51 && ARCH_IMX28) selects ARCH_HAS_FEC_IMX which has unmet direct dependencies (ARCH_IMX)
warning: (ARCH_IMX25 && ARCH_IMX27 && ARCH_IMX35 && ARCH_IMX51 && ARCH_IMX28) selects ARCH_HAS_FEC_IMX which has unmet direct dependencies (ARCH_IMX)
Add the option for the FEC on MX28 as well.
Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
we use the board revision to specify to the linux kernel the type of lcd
we use. So we can have only one machine for those 3 boards:
- sam9m10-ekes (LG)
- sam9g45-ekes (LG)
- sam9m10g45-ek (Truly)
today we support 2 lcds model:
- LG philips LB043WQ1
- Truly TFT1N4633-E
by default we select the Truly as the sam9m10g45-ek is the most common board
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Video controller of STM allow to control the reset bit of an external
LCD controller. When reset_lcd is set, CTRL1_RESET bit is used to
enable and disable LCD.
Handle USE_LCD_RESET as a flag in imx_fb_platformdata.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When describing an new video interface, it is now possible to select
the bit per pixel. If nothing is chosen 16bpp is selected by default.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We never supported the sigmatel stm chips and probably
never will. So do the first step and rename the architecture
to mxs just like in the kernel.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reverted upon request of Jean-Christophe. Not needed anymore since:
commit be4146161b
Author: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Sun Jan 16 12:12:32 2011 +0100
import swab.h arch implementation form linux v2.3.37
this will avoid __bswapsi2 issue see with gcc 4.5.1
This reverts commit f68dc40804.
it's 0x73f00000 not 0x23f00000 as the other at91
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Saves the boot source into an environment variable so env scripts
can more easily use boot source information.
Note only tested on imx35. I haven't added support for any other variants
because I'm not familiar with them. (And can't test them anyway).
Signed-off-by: Marc Reilly <marc@cpdesign.com.au>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Also, make sure that the usb ports are in ulpi mode before configuring
the iomuxer. Otherwise the ulpi transceiver cannot be initialized correctly.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Eric Bénard
Sascha Hauer
Juergen Beisert
Jean-Christophe PLAGNIOL-VILLARD
Robert Schwebel
Gregory CLEMENT
Marc Reilly