This patch removes the duplicted implementations of the pci_master_init()
function by introducing a weak default function for it. It can be
overridden by a board specific version.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch removes the duplicted implementations of the pci_pre_init()
function by introducing a weak default function for it. This weak default
has a different implementation for some PPC variants. It can be
overridden by a board specific version.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch removes the duplicted implementations of the pci_target_init()
function by introducing a weak default function for it. This weak default
has a different implementation for 440EP(x)/GR(x) PPC's. It can be
overridden by a board specific version (e.g. PMC440, korat).
Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Matthias Fuchs <matthias.fuchs@esd.eu>
This patch introduces a weak default function for is_pci_host(),
returning 1. This is the default behaviour, since most boards only
implement PCI host functionality. This weak default can be overridden
by a board specific version if needed.
Signed-off-by: Stefan Roese <sr@denx.de>
Modify all existing *.c files to use the new register names
as seen in the AMCC manuals.
Signed-off-by: Niklaus Giger <niklaus.giger@member.fsf.org>
Signed-off-by: Stefan Roese <sr@denx.de>
This patch cleans up multiple issues of the 4xx register (mostly
DCR, SDR, CPR, etc) definitions:
- Change lower case defines to upper case (plb4_acr -> PLB4_ACR)
- Change the defines to better match the names from the
user's manuals (e.g. cprpllc -> CPR0_PLLC)
- Removal of some unused defines
Please test this patch intensive on your PPC4xx platform. Even though
I tried not to break anything and tested successfully on multiple
4xx AMCC platforms, testing on custom platforms is recommended.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch adds the CONFIG_PCI_4xx_PTM_OVERWRITE option and replaces
the ugly 'if defined(BOARD1) || ... || defined(BOARDn)' construct
in 4xx pci code.
When CONFIG_PCI_4xx_PTM_OVERWRITE is defined the default ptm register
setup can be overwritten through environment variables ptm1la, ptm1ms,
ptm2la and ptm2ms to do application specific pci target BAR configuration.
Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
Signed-off-by: Stefan Roese <sr@denx.de>
It was brought to our attention that U-Boot contains code derived from the
IBM OpenBIOS source code originally provided with some of the older PowerPC
4xx development boards. As a result, the original license of this code has
been carried in the various files for a number of years in the U-Boot project.
IBM is dual-licensing the IBM code contributions already present in U-Boot
under either the terms of the GNU General Public License version 2, or the
original code license already present.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Current code only sets the PCI vendor id to 0x1014 and
leaved device id to 0x0000.
Ths patch ....
a) uses the correct PCI_VENDOR_ID_IBM macro for this
b) sets the default device ID as stated in the UM to 0x0156
by using PCI_DEVICE_ID_IBM_405GP for this.
Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
Signed-off-by: Stefan Roese <sr@denx.de>
This patch moves some basic PCI initialisation from the 4xx cpu_init_f()
to cpu/ppc4xx/4xx_pci.c.
The original cpu_init_f() function enabled the 405EP's internal arbiter
in all situations. Also the HCE bit in cpc0_pci is always set.
The first is not really wanted for PCI adapter designs and the latter
is a general bug for PCI adapter U-Boots. Because it enables
PCI configuration by the system CPU even when the PCI configuration has
not been setup by the 405EP. The one and only correct place is
in pci_405gp_init() (see "Set HCE bit" comment).
So for compatibility reasons the arbiter is still enabled in any case,
but from weak pci_pre_init() so that it can be replaced by board specific
code.
Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
Signed-off-by: Stefan Roese <sr@denx.de>
This patch implements the is_pci_host() function in a similiar way
as it is used on 440 targets.
The former path with CONFIG_PCI_HOST == PCI_HOST_AUTO does not
build on 405EP targets because checking the PCI arbiter is different.
So putting the fixed code into a separate function makes the code
more readable.
Also using is_pci_host() on 405 brings 405 and 440 PCI code
a little bit closer.
In preparation for an upcoming 405EP based PMC module I made this
function weak so that it can be overwritten from board specific code.
Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>
Signed-off-by: Stefan Roese <sr@denx.de>
PCI outbound address map configuration doesn't match the
PCI memory address range covered by appropriate TLB entry
configuration for canyonlands causing machine check
exceptions while accessing PCI memory regions. This patch
provides a fix for this issue.
Kazuaki Ichinohe observed and reported this issue while
testing display output with PCI ATI video card on canyonlands.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
The PCI_REGION_MEMORY and PCI_REGION_MEM are a bit to similar and
can be confusing when reading the code.
Rename PCI_REGION_MEMORY to PCI_REGION_SYS_MEMORY to clarify its used
for system memory mapping purposes.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
On some platforms PCIE support is not required, but would be included
because the cpu supports it. To reduce fooprint it is now configurable
via CONFIG_PCI_DISABLE_PCIE.
Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Signed-off-by: Stefan Roese <sr@denx.de>
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>
These files were introduced with the IBM 405GP but are currently used on all
4xx PPC platforms. So the name doesn't match the content anymore. This patch
renames the files to 4xx_pci.c/h.
Signed-off-by: Stefan Roese <sr@denx.de>
Stefan Roese
Niklaus Giger
Matthias Fuchs
Josh Boyer
Anatolij Gustschin
Kumar Gala
Dirk Eibach
Wolfgang Denk
Jean-Christophe PLAGNIOL-VILLARD
Marcel Ziswiler