When adding large page NAND support to this file, I had a misunderstanding
about the exact semantics of NAND_CTRL_CHANGE (which isn't documented
anywhere I can find) -- it is apparently just a hint to drivers,
which aren't required to preserve the old value for subsequent
non-"change" invocations.
This change makes nand_boot.c no longer assume this. Note that this
happened to work by chance with some NAND drivers, which don't preserve
the value, but treat 0 equivalently to NAND_CTRL_ALE.
I don't have hardware to test this, so any testing is appreciated.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Currently, when booting from NAND using nand_spl, in the beginning the default
environment is used until later in boot process the dynamic environment is read
out. This way environment variables that must be interpreted early, like the
baudrate or "silent", cannot be modified dynamically and remain at their
default values. Fix this problem by reading out main and redundand (if used)
copies of the environment in the nand_spl code.
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This patch adds the NAND SPL framework needed to boot i.MX31 boards
from NAND.
It has been tested on a i.MX31 PDK board with large page NAND. Small
page NANDs should work as well, but this has not been tested.
Note: The i.MX31 NFC uses a non-standard layout for large page NANDs,
whether this is compatible with a particular setup depends on how
the NAND device is programmed by the flash programmer (e.g. JTAG
debugger).
The patch is based on the work by Maxim Artamonov.
Signed-off-by: Maxim Artamonov <scn1874@yandex.ru>
Signed-off-by: Magnus Lilja <lilja.magnus@gmail.com>
A recent gcc added a new unaligned rodata section called '.rodata.str1.1',
which needs to be added the the linker script. Instead of just adding this
one section, we use a wildcard ".rodata*" to get all rodata linker section
gcc has now and might add in the future.
However, '*(.rodata*)' by itself will result in sub-optimal section
ordering. The sections will be sorted by object file, which causes extra
padding between the unaligned rodata.str.1.1 of one object file and the
aligned rodata of the next object file. This is easy to fix by using the
SORT_BY_ALIGNMENT command.
This patch has not be tested one most of the boards modified. Some boards
have a linker script that looks something like this:
*(.text)
. = ALIGN(16);
*(.rodata)
*(.rodata.str1.4)
*(.eh_frame)
I change this to:
*(.text)
. = ALIGN(16);
*(.eh_frame)
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
This means the start of rodata will no longer be 16 bytes aligned.
However, the boundary between text and rodata/eh_frame is still aligned to
16 bytes, which is what I think the real purpose of the ALIGN call is.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Fix typo in makefile which broke out of tree builds.
Also use expolicit "rm" instead of "ln -sf" which is known to be
unreliable.
Signed-off-by: Wolfgang Denk <wd@denx.de>
extend commit c70564e6b1
"NAND: Fix cache and memory inconsistency issue" to add the cache.o dependency
to the simpc8313 build and fix this:
...Large Page NAND...Configuring for SIMPC8313 board...
nand_boot_fsl_elbc.o: In function `nand_boot':
nand_spl/board/sheldon/simpc8313/nand_boot_fsl_elbc.c:150: undefined reference to `flush_cache'
make[1]: *** [/home/r1aaha/git/u-boot-mpc83xx/nand_spl/u-boot-spl] Error 1
make: *** [nand_spl] Error 2
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
This patch removes the now obsolete and additionally wrongly defined
board_nand_init() prototype from nand_spl/nand_boot.c.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This patch will create a new board, SIMPC8313, from Sheldon Instruments. This
board boots from NAND devices and is configureable for either large or small
page devices. The board supports non-soldered DDR2, one ethernet port, a
Marvell 88E1118 PHY, and PCI host support. The board also has a FPGA connected
to the eLBC providing glue logic to a TMS320C67xx DSP.
Signed-off-by: Ron Madrid <ron_madrid@sbcglobal.net>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
We load the secondary stage u-boot image from NAND to
system memory by nand_load, but we did not flush d-cache
to memory, nor invalidate i-cache before we jump to RAM.
When the system has cache enabled and the TLB/page attribute
of system memory is cacheable, it will cause issues.
- 83xx family is using the d-cache lock, so all of d-cache
access is cache-inhibited. so you can't see the issue.
- 85xx family is using d-cache, i-cache enable, partial
cache lock. you will see the issue.
This patch fixes the cache issue.
Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Most of the bss initialization loop increments 4 bytes
at a time. And the loop end is checked for an 'equal'
condition. Make the bss end address aligned by 4, so
that the loop will end as expected.
Signed-off-by: Selvamuthukumar <selva.muthukumar@e-coninfotech.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>
- Rename lbus83xx_t to fsl_lbus_t and move it to asm/fsl_lbc.h so that it
can be shared by both 83xx and 85xx
- Remove lbus83xx_t and replace it with fsl_lbus_t in all 83xx boards
files which use lbus83xx_t.
- Move FMR, FIR, FCR, FPAR, LTESR from mpc83xx.h to asm/fsl_lbc.h so that
85xx can share them.
Signed-off-by: Jason Jin <Jason.Jin@freescale.com>
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
SMDK6400 can only boot U-Boot from NAND-flash. This patch adds a nand_spl
driver for it too. The board can also boot from the NOR flash, but due to
hardware limitations it can only address 64KiB on it, which is not enough
for U-Boot. Based on the original sources by Samsung for U-Boot 1.1.6.
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Supporting page-aligned reads doesn't incure any sinificant overhead, just
a small change in the algorithm. Also replace in_8 with readb, since there
is no in_8 on ARM.
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Also, remove the ctrl variable in favor of passing the constants
directly, and remove redundant (u8) casts.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Note that with older board revisions, NAND boot may only work after a
power-on reset, and not after a warm reset. I don't have a newer board
to test on; if you have a board with a 33MHz crystal, please let me know
if it works after a warm reset.
Signed-off-by: Scott Wood <scottwood@freescale.com>
This patch changes the NAND booting driver nand_spl/nand_boot.c to match
the new infrastructure from the updated NAND subsystem. This NAND
subsystem was recently synced again with the Linux 2.6.22 MTD/NAND
subsystem.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch changes the return type of initdram() from long int to phys_size_t.
This is required for a couple of reasons: long int limits the amount of dram
to 2GB, and u-boot in general is moving over to phys_size_t to represent the
size of physical memory. phys_size_t is defined as an unsigned long on almost
all current platforms.
This patch *only* changes the return type of the initdram function (in
include/common.h, as well as in each board's implementation of initdram). It
does not actually modify the code inside the function on any of the platforms;
platforms which wish to support more than 2GB of DRAM will need to modify
their initdram() function code.
Build tested with MAKEALL for ppc, arm, mips, mips-el. Booted on powerpc
MPC8641HPCN.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
This patch fixes a problem spotted by Eugene O'Brian (thanks Eugene)
introduced by the commit:
ppc4xx/NAND_SPL: Consolidate 405 and 440 NAND booting code in start.S
With this patch SDRAM will get initialized again and booting from NAND
is working again.
Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Eugene O'Brien <eugene.obrien@advantechamt.com>
UNDEF_SYM is a shell variable in the main Makefile used to force the
linker to add all u-boot commands to the final image. It has no use here.
Signed-off-by: Kenneth Johansson <kenneth@southpole.se>
This patch changes the kilauea and kilauea_nand (for NAND booting)
board port to not use a board specific DDR2 init routine anymore. Now
the common code from cpu/ppc4xx is used.
Thanks to Grant Erickson for all his basic work on this 405EX early
bootup.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch consolidates the 405 and 440 parts of the NAND booting code
selected via CONFIG_NAND_SPL. Now common code is used to initialize the
SDRAM by calling initdram() and to "copy/relocate" to SDRAM/OCM/etc.
Only *after* running from this location, nand_boot() is called.
Please note that the initsdram() call is now moved from nand_boot.c
to start.S. I experienced problems with some boards like Kilauea
(405EX), which don't have internal SRAM (OCM) and relocation needs to
be done to SDRAM before the NAND controller can get accessed. When
initdram() is called later on in nand_boot(), this can lead to problems
with variables in the bss sections like nand_ecc_pos[].
Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Scott Wood <scottwood@freescale.com>
Canyonlands has a file ddr2_fixed.c which needs special treatment when
building in separate directory. It has to be linked to build directory
otherwise it is not seen.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch changes the Canyonlands/Glacier fixed DDR2 controller setup
used for NAND booting to match the values needed for the new 512MB
DIMM modules shipped with the productions boards:
Crucial: CT6464AC667.8FB
Signed-off-by: Stefan Roese <sr@denx.de>
This patch adds support for booting from 2k page sized NAND device
(e.g. Micron 29F2G08AAC).
Tested on AMCC Canyonlands.
Signed-off-by: Stefan Roese <sr@denx.de>
460EX doesn't support a fixed bootstrap option to boot from 512 byte page
NAND devices. The only bootstrap option for NAND booting is option F for
2k page devices. So to boot from a 512 bype page device, the I2C bootstrap
EEPROM needs to be programmed accordingly.
This patch adds basic NAND booting support for the AMCC Canyonlands aval
board and also adds support to the "bootstrap" command, to enable NAND
booting I2C setting.
Tested with 512 byte page NAND device (32MByte) on Canyonlands.
Signed-off-by: Stefan Roese <sr@denx.de>
With recent toolchain versions, some boards would not build because
or errors like this one (here for ocotea board when building with
ELDK 4.2 beta):
ppc_4xx-ld: section .bootpg [fffff000 -> fffff23b] overlaps section .bss [fffee900 -> fffff8ab]
For many boards, the .bss section is big enough that it wraps around
at the end of the address space (0xFFFFFFFF), so the problem will not
be visible unless you use a 64 bit tool chain for development. On
some boards however, changes to the code size (due to different
optimizations) we bail out with section overlaps like above.
The fix is to add the NOLOAD attribute to the .bss and .sbss
sections, telling the linker that .bss does not consume any space in
the image.
Signed-off-by: Wolfgang Denk <wd@denx.de>
This patch adds NAND booting support for the AMCC 405EX(r) eval boards.
Again, only one image supports both targets.
Signed-off-by: Stefan Roese <sr@denx.de>
Since the cache handling functions were moved from start.S into cache.S
the acadia NAND booting Makfile needs to be adapted accordingly.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch also adds a note to the fixed DDR setup for Bamboo NAND booting:
Note:
As found out by Eugene O'Brien <eugene.obrien@advantechamt.com>, the fixed
DDR setup has problems (U-Boot crashes randomly upon TFTP), when the DIMM
modules are still plugged in. So it is recommended to remove the DIMM
modules while using the NAND booting code with the fixed SDRAM setup!
Signed-off-by: Eugene O'Brien <eugene.obrien@advantechamt.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Bamboo has a file sdram.c which needs special treatment when building in
separate directory. It has to be linked to build directory otherwise it is
not seen.
Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
The latest changes showed a problem with the location of the NAND-SPL
image in the OCM and the init-data area (incl. cache). This patch
fixes this problem.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch adds NAND booting support for the AMCC Acadia eval board.
Please make sure to configure jumper J7 to position 2-3 when booting
from NOR, and to position 1-2 when booting for NAND.
I also added a board command to configure the I2C bootstrap EEPROM
values. Right now only 267MHz is support for booting either via NOR
or NAND FLASH. Here the usage:
=> bootstrap 267 nor ;to configure the board for 267MHz NOR booting
=> bootstrap 267 nand ;to configure the board for 267MHz NNAND booting
Signed-off-by: Stefan Roese <sr@denx.de>
This patch adds NAND booting support for the AMCC Bamboo eval board.
Since the NAND-SPL boot image is limited to 4kbytes, this version
only supports the onboard 64MBytes of DDR. The DIMM modules can't be
supported, since the setup code for I2C DIMM autodetection and
configuration is too big for this NAND bootloader.
Signed-off-by: Stefan Roese <sr@denx.de>
The U-Boot NAND booting support is now extended to support ECC
upon loading of the NAND U-Boot image.
Tested on AMCC Sequoia (440EPx) and Bamboo (440EP).
Signed-off-by: Stefan Roese <sr@denx.de>
Using cpu/ppc4xx/speed.c to calculate the bus frequency is too big
for the 4k NAND boot image so define bus_frequency to 133MHz here
which is save for the refresh counter setup.
Signed-off-by: Stefan Roese <sr@denx.de>
As provided by the AMCC applications team, this patch optimizes the
DDR2 setup for 166MHz bus speed. The values provided are also save
to use on a "normal" 133MHz PLB bus system. Only the refresh counter
setup has to be adjusted as done in this patch.
For this the NAND booting version had to include the "speed.c" file
from the cpu/ppc4xx directory. With this addition the NAND SPL image
will just fit into the 4kbytes of program space. gcc version 4.x as
provided with ELDK 4.x is needed to generate this optimized code.
Signed-off-by: Stefan Roese <sr@denx.de>
This code will optimize the DDR2 controller setup on a board specific
basis.
Note: This code doesn't work right now on the NAND booting image for the
Sequoia board, since it doesn't fit into the 4kBytes for the SPL image.
Signed-off-by: Stefan Roese <sr@denx.de>
- Add support for PPC440EPx & PPC440GRx
- Add support for PPC440EP(x)/GR(x) NAND controller
in cpu/ppc4xx directory
- Add NAND boot functionality for Sequoia board,
please see doc/README.nand-boot-ppc440 for details
- This Sequoia NAND image doesn't support environment
in NAND for now. This will be added in a short while.
Patch by Stefan Roese, 07 Sep 2006
