Currently, END_OF_RAM is used by the trap code to determine if
we should attempt to access the stack pointer or not. However,
on systems with a lot of RAM, only a subset of the RAM is
guaranteed to be mapped in and accessible. Change END_OF_RAM
to use get_effective_memsize() instead of using the raw ram
size out of the bd.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Change all code that conditionally operates on high bat
registers (that is, BATs 4-7) to look at CONFIG_HIGH_BATS
instead of the myriad ways this is done now. Define the option
for every config for which high bats are supported (and
enabled by early boot, on parts where they're not always
enabled)
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
If the specified delay is very short, the cycle counter may go past the
"end" time we are waiting for before we get around to reading it.
Fix it by checking the different between the cycle count "now" and the
cycle count at the beginning. This will work as long as the delay
measured in number of cycles is below 2^31.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Remove #ifdef CONFIG_MMC from the source file and use conditional
compilation in the Makefile instead.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Make sure we check for CRC errors when sending commands that use CRC
checking.
Reported-by: Gururaja Hebbar K R <gururajakr@sanyo.co.in>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
This cleans up the SDRAM initialization and related code a bit, and
allows faster booting.
* Add definitions for EBI and internal SRAM to asm/arch/memory-map.h
* Remove memory test from sdram_init() and make caller responsible
for verifying the SDRAM and determining its size.
* Remove base_address member from struct sdram_config (was sdram_info)
* Add data_bits member to struct sdram_config and kill CFG_SDRAM_16BIT
* Add support for a common STK1000 hack: 16MB SDRAM instead of 8.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Don't do a stack dump if the stack pointer is outside the memory area
reserved for stack.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Since the reset vector is always aligned to a very large boundary, we
can save a couple of KB worth of alignment padding by placing the
exception vectors at the same address.
Deciding which one it is is easy: If we're handling an exception, the
CPU is in Exception mode. If we're starting up after reset, the CPU is
in Supervisor mode. So this adds a very minimal overhead to the reset
path (only executed once) and the exception handling path (normally
never executed at all.)
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
pm_init() was always more about clock initialization than anything
else. Dealing with PLLs, clock gating and such is also inherently
SoC-specific, so move it into a SoC-specific directory.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
The .flashprog section was only needed back when we were running
directly from flash, and it's even more useless on NGW100 since it
uses the CFI flash driver which never used this workaround in the
first place.
Remove it on STK1000 as well, and get rid of all the associated code and
annotations.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
This patch forces the watchdog off in all cases. That will at least
get rid of the constant reboot cycle, though it won't let the watchdog
actually run in the new kernels: its probe() comes up with a polite
warning.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
This commit gets rid of a huge amount of silly white-space issues.
Especially, all sequences of SPACEs followed by TAB characters get
removed (unless they appear in print statements).
Also remove all embedded "vim:" and "vi:" statements which hide
indentation problems.
Signed-off-by: Wolfgang Denk <wd@denx.de>
This patch adds support for the AT91SAM9261 chip and the AT91SAM9261EK
board.
Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
All the AT91CAP9/AT91SAM9 boards have the same linker script. The patch
below avoids the duplication of u-boot.lds by putting the file in the
cpu directory instead of the board one.
Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
When applying the AT91CAP9 patches upstream, something transformed
the '@' character into the ' <at> ' sequence.
The patch below restores the original form in all the places where
it has been modified (the AT91CAP9 files, the AT91SAM9260 files which
were copied from AT91CAP9, and a couple of other files where the
' <at> ' sequence was present).
Signed-off-by: Stelian Pop <stelian@popies.net>
According to schematics and to RedBoot sources, the MX31ADS uses a 32768Hz
oscillator as a SKIL source. Fix previously wrongly assumed 32000Hz value.
Also fix a typo when verifying a jumper configuration. While at it, make
two needlessly global functions static.
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
This patch fixes three typos.
The first is a repetition of CONFIG_CMD_BSP.
The second makes the #endif comment match its #if.
The third is a spelling error.
Signed-off-by: Adrian Filipi <adrian.filipi@eurotech.com>
The 7610 and related parts have an L2IP bit in the L2CR that is
monitored to signal when the L2 cache invalidate is complete whereas the
7450 and related parts utilize L2I for this purpose. However, the
current code does not account for this difference. Additionally the 86xx
L2 cache invalidate code used an "andi" instruction where an "andis"
instruction should have been used.
This patch addresses both of these bugs.
Signed-off-by: Travis Wheatley <travis.wheatley@freescale.com>
Acked-By: Jon Loeliger <jdl@freescale.com>
When applying the AT91CAP9 patches upstream, something transformed
the '@' character into the ' <at> ' sequence.
The patch below restores the original form in all the places where
it has been modified (the AT91CAP9 files, the AT91SAM9260 files which
were copied from AT91CAP9, and a couple of other files where the
' <at> ' sequence was present).
Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
This patch adds a default ft_board_setup() routine to the 4xx fdt code.
This routine is defined as weak and can be overwritten by a board specific
one if needed.
Signed-off-by: Stefan Roese <sr@denx.de>
Some old GNU assemblers, such as v2.14 (ELDK 3.1.1), v2.16 (ELDK 4.1.0),
warns illegal global symbol references by bal (and jal also) instruction.
This does not happen with the latest binutils v2.18.
Here's an example on gth2_config:
mips_4KC-gcc -D__ASSEMBLY__ -g -Os -D__KERNEL__ -DTEXT_BASE=0x90000000 -I/home/skuribay/devel/u-boot.git/include -fno-builtin -ffreestanding -nostdinc -isy
stem /opt/eldk311/usr/bin/../lib/gcc-lib/mips-linux/3.3.3/include -pipe -DCONFIG_MIPS -D__MIPS__ -G 0 -mabicalls -fpic -pipe -msoft-float -march=4kc -mtune=4k
c -EB -c -o cache.o cache.S
cache.S: Assembler messages:
cache.S:243: Warning: Pretending global symbol used as branch target is local.
cache.S:250: Warning: Pretending global symbol used as branch target is local.
In principle, gas might be sensitive to global symbol references in PIC
code because they should be processed through GOT (global offset table).
But if `bal' instruction is used, it results in PC-based offset jump.
This is the cause of this warning.
In practice, we know it doesn't matter whether PC-based reference or GOT-
based. As for this case, both will work before/after relocation. But let's
fix the code.
This patch explicitly sets up a target address, then jump there.
Here's an example of disassembled code with/without this patch.
90000668: 1485ffef bne a0,a1,90000628 <mips_cache_reset+0x20>
9000066c: ac80fffc sw zero,-4(a0)
90000670: 01402821 move a1,t2
-90000674: 0411ffba bal 90000560 <mips_init_icache>
-90000678: 01803021 move a2,t4
-9000067c: 01602821 move a1,t3
-90000680: 0411ffcc bal 900005b4 <mips_init_dcache>
-90000684: 01a03021 move a2,t5
-90000688: 03000008 jr t8
-9000068c: 00000000 nop
+90000674: 01803021 move a2,t4
+90000678: 8f8f83ec lw t7,-31764(gp)
+9000067c: 01e0f809 jalr t7
+90000680: 00000000 nop
+90000684: 01602821 move a1,t3
+90000688: 01a03021 move a2,t5
+9000068c: 8f8f81e0 lw t7,-32288(gp)
+90000690: 01e0f809 jalr t7
+90000694: 00000000 nop
+90000698: 03000008 jr t8
+9000069c: 00000000 nop
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
start.S:183:1: warning: "ICMR" redefined
In file included from start.S:33:
include/asm/arch/pxa-regs.h:935:1: warning: this is the location of the previous definition
start.S:187:1: warning: "RCSR" redefined
...
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Current trick to pick up GNU assembler minor version uses a dot(.) as a
delimiter, and take the second field to obtain minor version number. But
as can be expected, this doesn't work with a version string which has
dots more than needs.
Here's an example:
$ mips-linux-gnu-as --version | grep 'GNU assembler'
GNU assembler (Sourcery G++ Lite 4.2-129) 2.18.50.20080215
$ mips-linux-gnu-as --version | grep 'GNU assembler' | cut -d. -f2
2-129) 2
$
This patch restricts the version format to 2.XX.XX... This will work
in most cases.
$ mips-linux-gnu-as --version | grep 'GNU assembler' | egrep -o '2\.[0-9\.]+'
2.18.50.20080215
$ mips-linux-gnu-as --version | grep 'GNU assembler' | egrep -o '2\.[0-9\.]+' | cut -d. -f2
18
$
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
Some 86xx chips use CCB as the base clock for the I2C, and others used CCB/2.
There is no pattern that can be used to determine which chips use which
frequency, so the only way to determine is to look up the actual SOC
designation and use the right value for that SOC.
Signed-off-by: Timur Tabi <timur@freescale.com>
This patch fixes a problem with DIMMs that have 8 banks. Now the
MCIF0_MBxCF register will be setup correctly for this setup too.
This was noticed with the 512MB DIMM on Canyonlands/Glacier.
Signed-off-by: Stefan Roese <sr@denx.de>
