This patch selects the USB data pins in the 405EX GPIO and MFC (multi
function control) registers. This is done for the AMCC Kilauea and
Makalu eval boards.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch enables the hardware-fix for the PCI/DMA errata's 19+22 by
setting the FIXD bit in the SDR0_MFR register. Here a description of the
symptoms:
Problem Description
------------------------------
If a DMA is performed between memory and PCI with the DMA 1 Controller
using prefetch, and as a result uses a special purpose buffer selected by
the PCIXn Bridge Options 1 Register (PCIXn_BRDGOPT1[RBP7] - bits 31-29),
the first part of the transfer sequence is performed twice. The
PPC440SPe PCI Controller requests more data than was needed such that in
the case of enforce memory protection, a host CPU exception can occur.
No data is corrupted, because data transfer is stopped in the PCI
Controller. Prefetch enable is specified by setting DMA Configuration
Register (I2O0_DMAx_CFG[DXEPD] - bit 31) to 0.
Behavior that may be observed in a running system
---------------------------------------------------------------------------
1. DMA performance is decreased because of the double access on the PCI bus
interface.
2. If an illegal access to some address on the PCI bus is detected at the
system level, a machine check or similar system error may occur.
Workarounds Available
----------------------------------
1. Do not program prefetch. Note that a prefetch command cannot be programmed
without selecting a special purpose buffer.
2. To avoid crossing a physical boundary of the PCI slave device, add 512
bytes of address to the PCI address range.
This patch was originally provided by Pravin M. Bathija <pbathija@amcc.com>
from AMCC and slighly changed.
Signed-off-by: Pravin M. Bathija <pbathija@amcc.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This manual PCIe reset triggering solves the problem seen with the
Intel EPRO/1000 card, which was not detected (link not established)
upon power-up reset.
Signed-off-by: Stefan Roese <sr@denx.de>
After an error in the AMCC 405EX users manual now correctly configure
IRQ2 (Kilauea)/IRQ0 (Makalu) as alternate 2 signal for external IRQ
usage.
Signed-off-by: Stefan Roese <sr@denx.de>
Added the following fdt fixup helpers:
* do_fixup_by_prop{_u32} - Find matching nodes by property name/value
* do_fixup_by_compat{_u32} - Find matching nodes by compat
The _u32 variants work the same only the property they are setting
is know to be a 32-bit integer instead of a byte buffer.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
cmd_fdt.c: In function fdt_print:
cmd_fdt.c:586: warning: assignment discards qualifiers from pointer target type
cmd_fdt.c:613: warning: assignment discards qualifiers from pointer target type
cmd_fdt.c:635: warning: assignment discards qualifiers from pointer target type
cmd_fdt.c:636: warning: assignment discards qualifiers from pointer target type
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Update libfdt to commit 8eaf5e358366017aa2e846c5038d1aa19958314e from
the device tree compiler (dtc) project.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Moved the generic fixup handling code out of cpu/mpc5xxx and cpu/mpc8260
into common/fdt_support.c and renamed:
do_fixup() -> do_fixup_by_path()
do_fixup_u32() -> do_fixup_by_path_u32()
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Removed:
fdt_node_is_compatible
fdt_find_node_by_type
fdt_find_compatible_node
To ease merge of newer libfdt as we aren't using them anywhere at this time.
Also moved fdt_find_and_setprop out of libfdt into fdt_support.c for the same
reason.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Fix library problems caused by conditional compilation. Using
autoconf.mk to decide which files to compile has caused a problem when
changing configuration from one board to another without clearing out
the library (*.a) files.
It used to be that the linker was always passed the same list of .o
files when building the .a files. However, that is not longer true
with conditional compilation. Now, a different board config will have
a different file list passed to the linker. The problem occurs when
a library has already been built and the board config is changed.
Since the linker will update instead of replace a preexisting library,
then if the file list changes to remove some object files the old
objects will still exist in the library.
The solution is to remove all old library files when autoconf.mk is
made.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Use cpp and sed to postprocess config.h and import the defined values
into include/autoconf.mk. autoconf.mk is then included by config.mk to
give 'make' access to the board configuration.
Doing this enables conditional compilation at the Makefile level instead
of by wrapping every .c file with #ifdef/#endif wrappers.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
lowlevel_init.S: Assembler messages:
lowlevel_init.S:413: Warning: Pretending global symbol used as branch target is local.
Looking at codes, the `memtest' and `clearmem' are intentional mixed
use of `global symbols' and `label' for debugging purpose. To make it
build, just disable global-symbols-use for now. As a result `memtest'
still remains as unused, but leave it be...
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
