This gives compatability with SD Cards using the old U-Boot scheme of an initial
VFAT part for kernel and then ext2. If you put the kernel you actually want to
use in /boot/uImage.bin in the ext2 partition, it can boot these cards then.
Signed-off-by: Andy Green <andy@openmoko.com>
This makes a new behaviour for Qi, when there are no valid kernels then it
performs the memory test. It means you can either move kernels out of the way
to get the memory test, or make an SD Card just with normal Qi on it and no
kernels to get a memory test.
Signed-off-by: Andy Green <andy@openmoko.com>
Some of utils.c isn't used until the full Qi image has been loaded into
memory, to save space in 4K steppingstone case on 2442, we split utils.c now
so only the interesting routines for steppingstone time take up space there.
Signed-off-by: Andy Green <andy@openmoko.com>
We need putc even when we are operating entirely from steppingstone.
Arrange that the board-specific putc code is in a section that goes into
steppingstone, and adapt the utils.c putc() so that it no longer needs to
indirect through the board_api struct that is in main memory.
Signed-off-by: Andy Green <andy@openmoko.com>
This adds the memory testing code to Qi. It tests the range of memory with
several constants and then a 32-bit walking 1 pattern, and repeats forever.
The entire main SDRAM can be tested due to the fact this runs out of
steppingstone only and does not need to store anything outside of it.
It introduces a steppingstone-based stack for use entirely in steppingstone.
Signed-off-by: Andy Green <andy@openmoko.com>
Improve glamo-mmc so that it uses MMC_READ_MULTIPLE_BLOCK and copes with
64 blocks in one command (and STOP sent after each set), instead of sending
a new command per-block
Signed-off-by: Andy Green <andy@openmoko.com>
Little cleanup and new code that collects and defers contiguous sector reads
into one potentially more efficient larger sequential read action.
This matters for example on SD Card protocol.
Signed-off-by: Andy Green <andy@openmoko.com>
Naughty bug bug U-Boot ext2 implementation -- cut and paste of stanza above for
indir1 check used for indir2 but not all the check was not updated.
This removes hundreds of repeated reads of same sector during kernel load.
Signed-off-by: Andy Green <andy@openmoko.com>
There was a bug about dealing with last ext2 sector of file
because we failed to return the number of sectors pulled
Signed-off-by: Andy Green <andy@openmoko.com>
This heavily adapts the Samsung U-Boot hs_mmc code and combines it with the
SD / SDHC startup code written for glamo-mci stuff that is known to work OK
with common SD and SDHC.
tla01 is changed to use the implementation.
Signed-off-by: Andy Green <andy@openmoko.com>
We want utils stuffs in steppingstone part, it's too expensive to have
CRC32 in there. Bust it out into its own file that appears only in
everything_else section in second bootloader stage.
Signed-off-by: Andy Green <andy@openmoko.com>
This patch makes qi source structure cpu-centric, and allows multiple CPUs
to be handled with the board definitions inside the CPU dirs.
You have to make a particular CPU version of Qi now, which you can do by
a shell command like this:
make clean ; make CPU=s3c2442 && make CPU=s3c6410
which gets you
$ ls -l image/
total 744
-rwxrwxr-x 1 agreen agreen 25372 2008-10-17 18:25 qi-s3c2442-andy_77c1fcdddc3e2cbf
-rw-rw-r-- 1 agreen agreen 237100 2008-10-17 18:25 qi-s3c2442-andy_77c1fcdddc3e2cbf.dis
-rw-rw-r-- 1 agreen agreen 25388 2008-10-17 18:25 qi-s3c2442-andy_77c1fcdddc3e2cbf.udfu
-rwxrwxr-x 1 agreen agreen 22736 2008-10-17 18:25 qi-s3c6410-andy_77c1fcdddc3e2cbf
-rw-rw-r-- 1 agreen agreen 216294 2008-10-17 18:25 qi-s3c6410-andy_77c1fcdddc3e2cbf.dis
-rw-rw-r-- 1 agreen agreen 22752 2008-10-17 18:25 qi-s3c6410-andy_77c1fcdddc3e2cbf.udfu
The 6410 support in there is enough to send a character "U" on the 6410 SMDK
Because the product naming is not defined, currently the device targeted for 6410
is called "TLA01"
Signed-off-by: Andy Green <andy@openmoko.com>
Before leaving for Linux, gratuitously clear down the totrst / timeout counter
to help stop us dying partway through boot on effective power-off.
In the case we have no battery or battery < ~3V, we still somehow need to do
more in kernel because it can switch itself off more than 8 seconds
after this point.
Signed-off-by: Andy Green <andy@openmoko.com>
Part of the effort to save power during booting so we can do it inside the
500mW budget from un-enumerated USB connection.
Signed-off-by: Andy Green <andy@openmoko.com>
On the last read, master must NAK, on intermediate reads it must ACK.
If you get this wrong, communication with device is screwed even in Linux.
Signed-off-by: Andy Green <andy@openmoko.com>
We need to set a few more things up in pcf50633 to get suspend and resume
to work -- without them suspend actually goes OFF. Take the opportunity
to optimize this init significantly.
Signed-off-by: Andy Green <andy@openmoko.com>
With large SDHC cards, the ext2/3 filesystem put on large partitions
by mkfs.ext2/3 is not how it used to be, it has a dynamic multiplier for
its block addressing. Without these changes, based on a patch by Ryan
Chen
http://lists.denx.de/pipermail/u-boot/2008-July/037786.html
we cannot parse large ext3 filesystem.
Signed-off-by: Andy Green <andy@openmoko.com>
Now cards larger than 4GB are normal, we can't use the byte addressing
internally any more for SDHC type card. This changes us to use block
(512 byte) addressing internally always.
Signed-off-by: Andy Green <andy@openmoko.com>
This patch performs the equivalent init actions to the SDHC slow
unitl first bulk patch in kernel, it allows us to work with large
SDHC cards which exceed Glamo timeout capability at 16MHz for first
access.
Signed-off-by: Andy Green <andy@openmoko.com>
This patch increases the timeout for card initializaton so it works with
8GB Sandisk uSDHC, and adds the size computation for SDHC as well.
Signed-off-by: Andy Green <andy@openmoko.com>
