Commit graph

39 commits

Author SHA1 Message Date
Wolfgang Denk
f0c0b3a9e6 Fix incorrect use of getenv() before relocation
A large number of boards incorrectly used getenv() in their board init
code running before relocation.  In some cases this caused U-Boot to
hang when certain environment variables grew too long.
Fix the code to use getenv_r().

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: The LEOX team <team@leox.org>
Cc: Michael Schwingen <michael@schwingen.org>
Cc: Georg Schardt <schardt@team-ctech.de>
Cc: Werner Pfister <Pfister_Werner@intercontrol.de>
Cc: Dirk Eibach <eibach@gdsys.de>
Cc: Peter De Schrijver <p2@mind.be>
Cc: John Zhan <zhanz@sinovee.com>
Cc: Rishi Bhattacharya <rishi@ti.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
2011-05-12 19:48:42 +02:00
Stefan Roese
b36df56115 ppc4xx: Move ppc4xx headers to powerpc include directory
This patch moves some ppc4xx related headers from the common include
directory (include/) to the powerpc specific one
(arch/powerpc/include/asm/). This way to common include directory is not
so cluttered with files.

Signed-off-by: Stefan Roese <sr@denx.de>
2010-09-23 09:02:05 +02:00
Stefan Roese
a47a12becf Move arch/ppc to arch/powerpc
As discussed on the list, move "arch/ppc" to "arch/powerpc" to
better match the Linux directory structure.

Please note that this patch also changes the "ppc" target in
MAKEALL to "powerpc" to match this new infrastructure. But "ppc"
is kept as an alias for now, to not break compatibility with
scripts using this name.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Anatolij Gustschin <agust@denx.de>
2010-04-21 23:42:38 +02:00
Peter Tyser
8d1f268204 ppc: Move cpu/$CPU to arch/ppc/cpu/$CPU
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-04-13 09:13:16 +02:00
Peter Tyser
64917ca389 PCIe, USB: Replace 'end point' references with 'endpoint'
When referring to PCIe and USB 'endpoint' is the standard naming
convention.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Remy Bohmer <linux@bohmer.net>
2010-01-17 23:06:44 +01:00
Stefan Roese
39ff7d5f4c POST: Remove duplicated post_hotkey_pressed() functions
This patch introduces a weak default function for post_hotkey_pressed(),
returning 0, for boards without hotkey support. The long-running tests
won't be started on those boards. This default function was implemented
in many board directories. By implementing this weak default we can
remove all those duplicate versions.

Boards with hotkey support, can override this weak default function
by defining one in their board specific code.

Signed-off-by: Stefan Roese <sr@denx.de>
2009-12-07 22:44:31 +01:00
Stefan Roese
a760b02031 ppc4xx: Consolidate pci_pre_init() function
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>
2009-11-19 11:35:30 +01:00
Stefan Roese
1095493a5d ppc4xx: Consolidate pci_target_init() function
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>
2009-11-19 11:35:08 +01:00
Stefan Roese
9a81c61249 ppc4xx: Remove duplicated is_pci_host() functions
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>
2009-11-09 11:27:08 +01:00
Stefan Roese
b0b867462c ppc4xx: Consolidate 4xx PCIe board specific configuration
This patch consolidates the PPC4xx board specific PCIe configuration
code. This way the duplicated code is removed. Boards can implement a
special, non standard behaviour (e.g. number of PCIe slots, etc) by
overriding the weak default functions.

Signed-off-by: Stefan Roese <sr@denx.de>
2009-11-09 11:26:57 +01:00
Niklaus Giger
ddc922ff2c ppc_4xx: Apply new HW register names
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>
2009-10-07 09:15:20 +02:00
Stefan Roese
06dfaeef52 ppc4xx: Fix msg "initialization as root-complex failed" upon PCIe scan
This message is printed upon PCIe bus scan, not only upon error, but also
if no PCIe device is detected at all. Since this is not an error, let's
remove this message in this case. We already have the message
"link is not up." if there is no PCIe device present.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>
2009-10-07 09:13:46 +02:00
Stefan Roese
952e7760bf ppc4xx: Convert PPC4xx UIC defines from lower case to upper case
The latest PPC4xx register cleanup patch missed the UIC defines.
This patch now changes lower case UIC defines to upper case.

Signed-off-by: Stefan Roese <sr@denx.de>
2009-09-28 10:45:42 +02:00
Stefan Roese
d1c3b27525 ppc4xx: Big cleanup of PPC4xx defines
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>
2009-09-11 10:35:58 +02:00
Stefan Roese
cef0efaf2f ppc4xx: Fix problem with board_eth_init() vs cpu_eth_init() on AMCC boards
Some AMCC eval boards do have a board_eth_init() function calling
pci_eth_init(). These boards need to call cpu_eth_init() explicitly now
with the new eth_init rework.

Signed-off-by: Stefan Roese <sr@denx.de>
2009-02-12 06:08:07 +01:00
Jean-Christophe PLAGNIOL-VILLARD
6d0f6bcf33 rename CFG_ macros to CONFIG_SYS
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-10-18 21:54:03 +02:00
Ben Warren
10efa024b8 Moved initialization of EEPRO100 Ethernet controller to board_eth_init()
Affected boards:
	db64360
	db64460
	katmai
	taihu
	taishan
	yucca
	cpc45
	cpu87
	eXalion
	elppc
	debris
	kvme080
	mpc8315erdb
	integratorap
	ixdp425
	oxc
	pm826
	pm828
	pm854
	pm856
	ppmc7xx
	sc3
	sc520_spunk
	sorcery
	tqm8272
	tqm85xx
	utx8245

Removed initialization of the driver from net/eth.c
Also, wrapped contents of pci_eth_init() by CONFIG_PCI.

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
2008-09-02 21:18:19 -07:00
Stefan Roese
d9056b7913 ppc4xx: Cleanup Katmai & Yucca PCIe register usage
This patch cleans up the 440SPe PCIe register usage. Now only defines
from the include/asm-ppc/4xx_pcie.h are used.

Signed-off-by: Stefan Roese <sr@denx.de>
2008-07-11 13:18:14 +02:00
Stefan Roese
3c1de1a6d3 ppc4xx: Remove implementations of testdram()
This patch removes the used testdram() implementations of the board
that are maintained by myself.

Signed-off-by: Stefan Roese <sr@denx.de>
2008-06-03 20:22:24 +02:00
Wolfgang Denk
53677ef18e Big white-space cleanup.
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>
2008-05-21 00:14:08 +02:00
Stefan Roese
a27044b14a ppc4xx: Enable hardware-fix for PCI/DMA errata on AMCC 440SP/SPe boards
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>
2007-12-06 05:58:43 +01:00
Stefan Roese
654f38b3a3 ppc4xx: Make output a little shorter on PCIe detection
Now not max 3 lines but 2 lines are printed per PCIe port.

Signed-off-by: Stefan Roese <sr@denx.de>
2007-11-05 07:43:05 +01:00
Stefan Roese
087dfdb79b ppc4xx: Consolidate some of the 405 and 440 macros/structs into 4xx
This patch moves some common 4xx macros and the PPC405_SYS_INFO/
PPC440_SYS_INFO structure into the common ppc4xx.h header.

Lot's of other macros are good candidates to be consolidated this way
in the future.

Signed-off-by: Stefan Roese <sr@denx.de>
2007-10-31 21:20:50 +01:00
Stefan Roese
d4cb2d1794 ppc4xx: Dynamic configuration of 4xx PCIe mode as root or endpoint mode
This patch adds support for dynamic configuration of PCIe ports for the
AMCC PPC4xx boards equipped with PCIe interfaces. These are the PPC440SPe
boards Yucca & Katmai and the 405EX board Kilauea.

This dynamic configuration is done via the "pcie_mode" environement
variable. This variable can be set to "EP" or "RP" for endpoint or
rootpoint mode. Multiple values can be joined via the ":" delimiter.
Here an example:

pcie_mode=RP:EP:EP

This way, PCIe port 0 will be configured as rootpoint, PCIe port 1 and 2
as endpoint.

Per default Yucca will be configured as:
pcie_mode=RP:EP:EP

Per default Katmai will be configured as:
pcie_mode=RP:RP:REP

Per default Kilauea will be configured as:
pcie_mode=RP:RP

Signed-off-by: Tirumala R Marri <tmarri@amcc.com>
Signed-off-by: Stefan Roese <sr@denx.de>
2007-10-31 21:20:50 +01:00
Stefan Roese
026f711068 ppc4xx: Make 440SPe PCIe code more generic to use on different 4xx PPCs (2)
This patch is the first patch of a series to make the 440SPe PCIe code
usable on different 4xx PPC platforms. In preperation for the new 405EX
which is also equipped with PCIe interfaces.

(2) This patch renames the functions from 440spe_ to 4xx_ with a
    little additional cleanup

Signed-off-by: Stefan Roese <sr@denx.de>
2007-10-31 21:20:49 +01:00
Stefan Roese
c7c6da2302 ppc4xx: Make 440SPe PCIe code more generic to use on different 4xx PPCs (1)
This patch is the first patch of a series to make the 440SPe PCIe code
usable on different 4xx PPC platforms. In preperation for the new 405EX
which is also equipped with PCIe interfaces.

(1) This patch renames the files from 440spe_pcie to 4xx_pcie

Signed-off-by: Stefan Roese <sr@denx.de>
2007-10-31 21:20:48 +01:00
Wolfgang Denk
1218abf1b5 Fix cases where DECLARE_GLOBAL_DATA_PTR was not declared as global
Signed-off-by: Wolfgang Denk <wd@denx.de>
2007-09-15 20:48:41 +02:00
Grzegorz Bernacki
6efc1fc0b6 [PPC440SPe] PCIe environment settings for Katmai and Yucca
- 'pciconfighost' is set by default in order to be able to scan bridges
behind the primary host/PCIe

- 'pciscandelay' env variable is recognized to allow for user-controlled
delay before the PCIe bus enumeration; some peripheral devices require a
significant delay before they can be scanned (e.g. LSI8408E); without the
delay they are not detected

Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
2007-09-07 18:35:37 +02:00
Grzegorz Bernacki
7f19139389 [PPC440SPe] Improve PCIe configuration space access
- correct configuration space mapping
- correct bus numbering
- better access to config space

Prior to this patch, the 440SPe host/PCIe bridge was able to configure only the
first device on the first bus. We now allow to configure up to 16 buses;
also, scanning for devices behind the PCIe-PCIe bridge is supported, so
peripheral devices farther in hierarchy can be identified.

Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
2007-09-07 18:20:23 +02:00
Stefan Roese
df3f17422a ppc4xx: Support for Yucca board with 440SPe Rev A added to 44x_spd_ddr2.c
The new boardspecific DDR2 controller configuration is used for the Yucca
board. Now the Yucca board with 440SPe Rev. A chips is also supported.

Signed-off-by: Stefan Roese <sr@denx.de>
2007-07-16 10:00:43 +02:00
Stefan Roese
466fff1a7b ppc4xx: Add pci_pre_init() for 405 boards
This patch removes the CFG_PCI_PRE_INIT option completely, since
it's not needed anymore with the patch from Matthias Fuchs with
the "weak" pci_pre_init() implementation.

Signed-off-by: Stefan Roese <sr@denx.de>
2007-06-25 15:57:39 +02:00
Stefan Roese
2f5df47351 [PATCH] Update AMCC Yucca 440SPe eval board support
The AMCC Yucca now uses the common 440SP(e) DDR SPD code for DDR
inititializition. This includes DDR auto calibration and support
for different DIMM modules, instead of the fixed setup used in
the earlier version.

Signed-off-by: Stefan Roese <sr@denx.de>
2007-03-08 10:10:18 +01:00
Wolfgang Denk
511d0c72b8 Coding style cleanup 2006-10-09 00:42:01 +02:00
Stefan Roese
2b393b0f0a PCIe endpoint support for AMCC Yucca 440SPe board
Patch by Tirumala R Marri, 26 Aug 2006
2006-08-29 08:05:15 +02:00
Stefan Roese
f5577aae4a Improve DIMM detection for AMCC Yucca 440SPe board
Improved the memory DIMM detection for the Yucca 440SPe board for
the case where a memory DIMM is falsely detected as present.

This issue is seen on some AMCC Yucca 440SPe validation boards if
only one 512MB memory DIMM is installed, i.e. DIMM slot 0 is
populated and DIMM slot 1 is empty.  In this case, U-Boot does
not correctly detect that there is only one DIMM memory module
installed and will falsely detect two DIMM memory modules are
present and therefore U-Boot will not calculate the correct amount
of total memory and u-boot will not booting up.

Patch by Adam Graham, 24 Aug 2006
2006-08-29 08:04:32 +02:00
Rafal Jaworowski
36b904a7fd Fix PCI-Express on PPC440SPe rev. A. 2006-08-11 12:35:52 +02:00
Rafal Jaworowski
692519b1ed Add support for PCI-Express on PPC440SPe (Yucca board). 2006-08-10 12:43:17 +02:00
Marian Balakowicz
fe84b48a94 Cleanup config file and bootup output for Yucca board. 2006-07-03 23:42:36 +02:00
Marian Balakowicz
6c5879f380 Add support for AMCC 440SPe CPU based eval board (Yucca). 2006-06-30 16:30:46 +02:00