Commit graph

70 commits

Author SHA1 Message Date
Michael Schwingen
29161f47d0 IXP42x PCI rewrite
clean up IXP PCI handling: get rid of IXP-private bus scan, BAR assign etc.
code and use u-boot's PCI infrastructure instead.  Move board-specific PCI
setup code (clock/reset) to board directory.

Signed-off-by: Michael Schwingen <michael@schwingen.org>
2011-06-23 08:25:18 +02:00
Prabhakar Kushwaha
b6ccd2c9de fsl_pci: Add support for FSL PCIe controllers v2.x
FSL PCIe controller v2.1:
	- New MSI inbound window
	- Same Inbound windows address as PCIe controller v1.x

Added new pit_t member(pmit) to struct ccsr_pci for MSI inbound window

FSL PCIe controller v2.2 and v2.3:
	- Different addresses for PCIe inbound window 3,2,1
	- Exposed PCIe inbound window 0
	- New PCIe interrupt status register

Added new Interrupt Status register to struct ccsr_pci & updated pit_t array
size to reflect the 4 inbound windows.

To maintain backward compatiblilty, on V2.2 or greater controllers we
start with inbound window 1 and leave inbound 0 with its default value
(which maps to CCSRBAR).

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-04-04 09:24:41 -05:00
Prabhakar Kushwaha
b03a466d6c powerpc/85xx: Handle PCIe initialization requires for P1021 class SoCs
The P1011, P1012, P1015, P1016, P1020, P1021, P1024, & P1025 SoCs require
that we initialize the SERDES registers if the lanes are configured for
PCIe.  Additionally these devices PCIe controller do not support ASPM
and we have to explicitly disable it.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-03-29 07:41:37 -05:00
Wolfgang Denk
d1a24f0618 Minor Coding Style Cleanup.
Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-02-02 22:36:10 +01:00
Peter Tyser
213ac73e2c fsl_pci: Update PCIe boot ouput
This change does the following:
- Adds printing of negotiated link width.  This information can be
  useful when debugging PCIe issues.
- Makes it optional for boards to implement board_serdes_name().
  Previously boards that did not implement it would print unsightly
  output such as "PCIE1: Connected to <NULL>..."
- Rewords the PCIe boot output to reduce line length and to make it
  clear that the "base address XYZ" value refers to the base address of
  the internal processor PCIe registers and not a standard PCI BAR
  value.
- Changes "PCIE" output to the standard "PCIe"

Before change:
PCIE1: connected to <NULL> as Root Complex (base addr ef008000)
  01:00.0     - 10b5:8518 - Bridge device
   02:01.0    - 10b5:8518 - Bridge device
   02:02.0    - 10b5:8518 - Bridge device
   02:03.0    - 10b5:8518 - Bridge device
PCIE1: Bus 00 - 05
PCIE2: connected to <NULL> as Endpoint (base addr ef009000)
PCIE2: Bus 06 - 06

After change:
PCIe1: Root Complex of PEX8518 Switch, x4, regs @ 0xef008000
  01:00.0     - 10b5:8518 - Bridge device
   02:01.0    - 10b5:8518 - Bridge device
   02:02.0    - 10b5:8518 - Bridge device
   02:03.0    - 10b5:8518 - Bridge device
PCIe1: Bus 00 - 05
PCIe2: Endpoint of VPX Fabric A, x2, regs @ 0xef009000
PCIe2: Bus 06 - 06

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-01-14 01:32:21 -06:00
Kumar Gala
a4aafcc990 powerpc/fsl-pci: Add generic code to setup PCIe controllers
Since all the PCIe controllers are connected over SERDES on the SoCs we
can utilize is_serdes_configured() to determine if a controller is
enabled.  After which we can setup the ATMUs and LAWs for the controller
in a common fashion and allow board code to specify what the controller
is connected to for reporting reasons.

We also provide a per controller (rather than all) for some systems that
may have special requirements.

Finally, we refactor the code used by the P1022DS to utilize the new
generic code.

Based on patch by: Li Yang <leoli@freescale.com>

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-01-14 01:32:19 -06:00
Kumar Gala
3a0e3c27a5 powerpc/fsl-pci: Determine pci_controller based on cfg addr for dts fixup
Previously we passed in a specifically named struct pci_controller to
determine if we had setup the particular PCI bus.  Now we can search for
the struct so we dont have to depend on the name or the struct being
statically allocated.

Introduced new find_hose_by_cfg_addr() to get back a pci_controller struct
back by searching for it means we can do things like dynamically allocate
them or not have to expose the static structures to all users.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Wolfgang Denk <wd@denx.de>
2011-01-14 01:32:19 -06:00
Wolfgang Denk
e2c2a95e60 74xx_7xx: Cleanup for partial linking and --gc-sections
Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
2010-11-27 23:35:12 +01:00
Sebastien Carlier
6d8962e814 Switch from archive libraries to partial linking
Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils.  As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".

This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.

The name of each former library archive is preserved except for
extensions which change from ".a" to ".o".  This commit updates
references accordingly where needed, in particular in some linker
scripts.

This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols.  Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.

Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
2010-11-17 21:02:18 +01:00
Peter Tyser
009884ae35 pci: Use intelligent indentation for CONFIG_PCI_SCAN_SHOW
When CONFIG_PCI_SCAN_SHOW is defined U-Boot prints out PCI devices as
they are found during bootup, eg:
  PCIE1: connected as Root Complex
        01:00.0 - 10b5:8518 - Bridge device
        02:01.0 - 10b5:8518 - Bridge device
        03:00.0 - 10b5:8112 - Bridge device
        04:01.0 - 8086:1010 - Network controller
        04:01.1 - 8086:1010 - Network controller
        02:02.0 - 10b5:8518 - Bridge device
        02:03.0 - 10b5:8518 - Bridge device
        06:00.0 - 10b5:8518 - Bridge device
        07:00.0 - 10b5:8518 - Bridge device
        08:00.0 - 1957:0040 - Processor
        07:01.0 - 10b5:8518 - Bridge device
        09:00.0 - 10b5:8112 - Bridge device
        07:02.0 - 10b5:8518 - Bridge device
  PCIE1: Bus 00 - 0b
  PCIE2: connected as Root Complex
        0d:00.0 - 1957:0040 - Processor
  PCIE2: Bus 0c - 0d

This information is useful, but its difficult to determine the PCI bus
topology.  To things clearer, we can use indention to make it more
obvious how the PCI bus is organized.  For the example above, the
updated output with this change is:

  PCIE1: connected as Root Complex
    01:00.0     - 10b5:8518 - Bridge device
     02:01.0    - 10b5:8518 - Bridge device
      03:00.0   - 10b5:8112 - Bridge device
       04:01.0  - 8086:1010 - Network controller
       04:01.1  - 8086:1010 - Network controller
     02:02.0    - 10b5:8518 - Bridge device
     02:03.0    - 10b5:8518 - Bridge device
      06:00.0   - 10b5:8518 - Bridge device
       07:00.0  - 10b5:8518 - Bridge device
        08:00.0 - 1957:0040 - Processor
       07:01.0  - 10b5:8518 - Bridge device
        09:00.0 - 10b5:8112 - Bridge device
       07:02.0  - 10b5:8518 - Bridge device
  PCIE1: Bus 00 - 0b
  PCIE2: connected as Root Complex
    0d:00.0     - 1957:0040 - Processor
  PCIE2: Bus 0c - 0d

In the examples above, an MPC8640 is connected to a PEX8518 PCIe switch
(01:00 and 02:0x), which is connected to another PEX8518 PCIe switch
(06:00 and 07:0x), which then connects to a MPC8572 processor (08:00).
Also, the MPC8640's PEX8518 PCIe switch is connected to a PCI ethernet
card (04:01) via a PEX8112 PCIe-to-PCI bridge (03:00).

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-11-14 23:46:48 +01:00
Peter Tyser
a38d216eeb pci: Fix ordering of devices when CONFIG_PCI_SCAN_SHOW
Move the printing of PCI device information to before the PCI device is
configured.  This prevents the case where recursive scanning results in
the deepest devices being printed first.

This change also makes PCI lockups during enumeration easier to
diagnose since the device that is being configured is printed out prior
to configuration.  Previously, it was not possible to determine which
device caused the PCI lockup.

Original example:
  PCIE1: connected as Root Complex
        04:01.0 - 8086:1010 - Network controller
        04:01.1 - 8086:1010 - Network controller
        03:00.0 - 10b5:8112 - Bridge device
        02:01.0 - 10b5:8518 - Bridge device
        02:02.0 - 10b5:8518 - Bridge device
        08:00.0 - 1957:0040 - Processor
        07:00.0 - 10b5:8518 - Bridge device
        09:00.0 - 10b5:8112 - Bridge device
        07:01.0 - 10b5:8518 - Bridge device
        07:02.0 - 10b5:8518 - Bridge device
        06:00.0 - 10b5:8518 - Bridge device
        02:03.0 - 10b5:8518 - Bridge device
        01:00.0 - 10b5:8518 - Bridge device
  PCIE1: Bus 00 - 0b

Updated example:
  PCIE1: connected as Root Complex
        01:00.0 - 10b5:8518 - Bridge device
        02:01.0 - 10b5:8518 - Bridge device
        03:00.0 - 10b5:8112 - Bridge device
        04:01.0 - 8086:1010 - Network controller
        04:01.1 - 8086:1010 - Network controller
        02:02.0 - 10b5:8518 - Bridge device
        02:03.0 - 10b5:8518 - Bridge device
        06:00.0 - 10b5:8518 - Bridge device
        07:00.0 - 10b5:8518 - Bridge device
        08:00.0 - 1957:0040 - Processor
        07:01.0 - 10b5:8518 - Bridge device
        09:00.0 - 10b5:8112 - Bridge device
        07:02.0 - 10b5:8518 - Bridge device
  PCIE1: Bus 00 - 0b

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-11-14 23:46:47 +01:00
Peter Tyser
983eb9d162 pci: Clean up PCI info when CONFIG_PCI_SCAN_SHOW
This change does the following:
- Removes the printing of the PCI interrupt line value.  This is
  normally set to 0 by U-Boot on bootup and is rarely used during
  everyday operation.

- Prints out the PCI function number of a device.  Previously a device
  with multiple functions would be printed identically 2 times, which is
  generally confusing.  For example, on an Intel 2 port gigabit Ethernet
  card the following was displayed:
    ...
    04  01  8086  1010  0200  00
    04  01  8086  1010  0200  00
    ...

- Prints a text description of each device's PCI class instead of the
  raw PCI class code.  The textual description makes it much easier to
  determine what devices are installed on a PCI bus.

- Changes the general formatting of the PCI device output.

Previous output:
  PCIE1: connected as Root Complex
          04  01  8086  1010  0200  00
          04  01  8086  1010  0200  00
          03  00  10b5  8112  0604  00
          02  01  10b5  8518  0604  00
          02  02  10b5  8518  0604  00
          08  00  1957  0040  0b20  00
          07  00  10b5  8518  0604  00
          09  00  10b5  8112  0604  00
          07  01  10b5  8518  0604  00
          07  02  10b5  8518  0604  00
          06  00  10b5  8518  0604  00
          02  03  10b5  8518  0604  00
          01  00  10b5  8518  0604  00
  PCIE1: Bus 00 - 0b
  PCIE2: connected as Root Complex
          0d  00  1957  0040  0b20  00
  PCIE2: Bus 0c - 0d

Updated output:
  PCIE1: connected as Root Complex
          04:01.0 - 8086:1010 - Network controller
          04:01.1 - 8086:1010 - Network controller
          03:00.0 - 10b5:8112 - Bridge device
          02:01.0 - 10b5:8518 - Bridge device
          02:02.0 - 10b5:8518 - Bridge device
          08:00.0 - 1957:0040 - Processor
          07:00.0 - 10b5:8518 - Bridge device
          09:00.0 - 10b5:8112 - Bridge device
          07:01.0 - 10b5:8518 - Bridge device
          07:02.0 - 10b5:8518 - Bridge device
          06:00.0 - 10b5:8518 - Bridge device
          02:03.0 - 10b5:8518 - Bridge device
          01:00.0 - 10b5:8518 - Bridge device
  PCIE1: Bus 00 - 0b
  PCIE2: connected as Root Complex
          0d:00.0 - 1957:0040 - Processor
  PCIE2: Bus 0c - 0d

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-11-14 23:46:46 +01:00
Peter Tyser
37d03fce9c fsl_pci_init: Quiet scanning printf()
The "Scanning PCI bus X" message doesn't provide any real useful
information, so remove it.

Original output:
  PCIE1: connected as Root Complex
             Scanning PCI bus 01
          04  01  8086  1010  0200  00
          04  01  8086  1010  0200  00
          03  00  10b5  8112  0604  00
          02  01  10b5  8518  0604  00
          02  02  10b5  8518  0604  00
          08  00  1957  0040  0b20  00
          07  00  10b5  8518  0604  00
          09  00  10b5  8112  0604  00
          07  01  10b5  8518  0604  00
          07  02  10b5  8518  0604  00
          06  00  10b5  8518  0604  00
          02  03  10b5  8518  0604  00
          01  00  10b5  8518  0604  00
  PCIE1: Bus 00 - 0b
  PCIE2: connected as Root Complex
             Scanning PCI bus 0d
          0d  00  1957  0040  0b20  00
  PCIE2: Bus 0c - 0d

Updated output:
  PCIE1: connected as Root Complex
          04  01  8086  1010  0200  00
          04  01  8086  1010  0200  00
          03  00  10b5  8112  0604  00
          02  01  10b5  8518  0604  00
          02  02  10b5  8518  0604  00
          08  00  1957  0040  0b20  00
          07  00  10b5  8518  0604  00
          09  00  10b5  8112  0604  00
          07  01  10b5  8518  0604  00
          07  02  10b5  8518  0604  00
          06  00  10b5  8518  0604  00
          02  03  10b5  8518  0604  00
          01  00  10b5  8518  0604  00
  PCIE1: Bus 00 - 0b
  PCIE2: connected as Root Complex
          0d  00  1957  0040  0b20  00
  PCIE2: Bus 0c - 0d

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
CC: galak@kernel.crashing.org
2010-11-14 23:46:45 +01:00
Peter Tyser
8ca78f2c89 fsl: Clean up printing of PCI boot info
Previously boards used a variety of indentations, newline styles, and
colon styles for the PCI information that is printed on bootup.  This
patch unifies the style to look like:

...
NAND:  1024 MiB
PCIE1: connected as Root Complex
           Scanning PCI bus 01
        04  01  8086  1010  0200  00
        04  01  8086  1010  0200  00
        03  00  10b5  8112  0604  00
        02  01  10b5  8518  0604  00
        02  02  10b5  8518  0604  00
        08  00  1957  0040  0b20  00
        07  00  10b5  8518  0604  00
        09  00  10b5  8112  0604  00
        07  01  10b5  8518  0604  00
        07  02  10b5  8518  0604  00
        06  00  10b5  8518  0604  00
        02  03  10b5  8518  0604  00
        01  00  10b5  8518  0604  00
PCIE1: Bus 00 - 0b
PCIE2: connected as Root Complex
           Scanning PCI bus 0d
        0d  00  1957  0040  0b20  00
PCIE2: Bus 0c - 0d
In:    serial
...

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
CC: wd@denx.de
CC: sr@denx.de
CC: galak@kernel.crashing.org
2010-11-14 23:46:42 +01:00
Peter Tyser
a72dbae2cc fsl_pci_init: Make fsl_pci_init_port() PCI/PCIe aware
Previously fsl_pci_init_port() always assumed that a port was a PCIe
port and would incorrectly print messages for a PCI port such as the
following on bootup:
    PCI1:  32 bit, 33 MHz, sync, host, arbiter
                Scanning PCI bus 00
    PCIE1 on bus 00 - 00

This change corrects the output of fsl_pci_init_port():
    PCI1:  32 bit, 33 MHz, sync, host, arbiter
                Scanning PCI bus 00
    PCI1 on bus 00 - 00

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-11-14 23:45:57 +01:00
John Schmoller
96d6160324 pci: Add ability to re-enumerate PCI buses
Add a new 'pci enum' command which re-enumerates the PCI buses.  This
command is enabled via the CONFIG_CMD_PCI_ENUM define and can be useful
in boards with FPGAs connected via PCI/PCIe, boards that support PCI
hot-plugging, or during PCI debug.

Also enable the 'pci enum' command for X-ES's Freescale-based boards.

Signed-off-by: John Schmoller <jschmoller@xes-inc.com>
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Wolfgang Denk <wd@denx.de>
2010-10-22 02:17:12 -05:00
Kumar Gala
6525d51fa5 powerpc/85xx & 86xx: Rework ft_fsl_pci_setup to not require aliases
Previously we used an alias the pci node to determine which node to
fixup or delete.  Now we use the new fdt_node_offset_by_compat_reg to
find the node to update.

Additionally, we replace the code in each board with a single macro call
that makes assumes uniform naming and reduces duplication in this area.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-07-20 04:40:06 -05:00
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
8f0fec74ac sh: Move cpu/$CPU to arch/sh/cpu/$CPU
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-04-13 09:13:17 +02:00
Kumar Gala
5a85a30969 ppc/8xxx: Delete PCI nodes from device tree if not configured
If the PCI controller wasn't configured or enabled delete from the
device tree (include its alias).

For the case that we didn't even configure u-boot with knowledge of
the controller we can use the fact that the pci_controller pointer
is NULL to delete the node in the device tree.  We determine that
a controller was not setup (because of HW config) based on the fact
that cfg_addr wasn't setup.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-04-07 00:11:39 -05:00
Wolfgang Denk
252b404d95 Fix PCI_BASE_ADDRESS_5 handling in pci_hose_config_device()
Signed-off-by: FUJITA Kazutoshi <fujita@soum.co.jp>
Signed-off-by: <wd@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
2010-03-21 17:58:07 +01:00
Felix Radensky
97c9f29008 ppc4xx: Fix sending type 1 PCI transactions
The list of 4xx SoCs that should send type 1 PCI transactions
is not defined correctly. As a result PCI-PCI bridges and devices
behind them are not identified. The following 4xx variants should
send type 1 transactions: 440GX, 440GP, 440SP, 440SPE, 460EX and 460GT.

Signed-off-by: Felix Radensky <felix@embedded-sol.com>
Signed-off-by: Stefan Roese <sr@denx.de>
2010-01-23 09:27:18 +01:00
Kumar Gala
ee53650dad ppc/8xxx: Remove is_fsl_pci_agent
All users of is_fsl_pci_agent have been converted to fsl_is_pci_agent
that uses the standard PCI programming model to determine host vs
agent/end-point.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-01-05 13:49:07 -06:00
Ed Swarthout
715d8f7608 fsl_pci_init_port end-point initialization is broken
commit 70ed869e broke fsl pcie end-point initialization.
Returning 0 is not correct.  The function must return the first free
bus number for the next controller.

fsl_pci_init() must still be called and a bus allocated even if the
controller is an end-point.

Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com>
Acked-by: Vivek Mahajan <vivek.mahajan@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-11-04 09:16:30 -06:00
Kumar Gala
01471d538f Revert "ppc/85xx/pci: fsl_pci_init: pcie agent mode support"
This reverts commit 70ed869ea5.

There isn't any need to modify the API for fsl_pci_init_port to pass the
status of host/agent(end-point) status.  We can determine that
internally to fsl_pci_init_port.  Revert the patch that makes the API
change.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-11-04 09:14:59 -06:00
Vivek Mahajan
70ed869ea5 ppc/85xx/pci: fsl_pci_init: pcie agent mode support
Originally written by Jason Jin and Mingkai Hu for mpc8536.

When QorIQ based board is configured as a PCIe agent, then unlock/enable
inbound PCI configuration cycles and init a 4K inbound memory window;
so that a PCIe host can access the PCIe agents SDRAM at address 0x0

* Supported in fsl_pci_init_port() after adding pcie_ep as a param
* Revamped copyright in drivers/pci/fsl_pci_init.c
* Mods in 85xx based board specific pci init after this change

Signed-off-by: Vivek Mahajan <vivek.mahajan@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-10-27 09:33:51 -05:00
Kumar Gala
93a83872c7 ppc/85xx: Clean up p1_p2_rdb PCI setup
General code cleanup to use in/out IO accessors as well as making
the code that prints out info sane between board and generic fsl pci
code.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-09-24 12:04:58 -05:00
Poonam Aggrwal
0d3d68b25a driver/fsl_pci: Add fsl_pci_init_port function to initialize a PCI controller
fsl_pci_init_port can be called from board specific PCI initialization
routines to setup the PCI (or PCIe) controller.  This will reduce code
redundancy in most of the 85xx/86xx FSL board ports that setup PCI.

Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-08-28 17:12:43 -05:00
Kumar Gala
ad19e7a5d2 pci/fsl_pci_init: Rework PCI ATMU setup to handle >4G of memory
The old PCI ATMU setup code would just mimic the PCI regions into the
ATMU registers.  For simple memory maps in which all memory, MMIO, etc
space fit into 4G this works ok.  However there are issues with we have
>4G of memory as we know can't access all of memory and we need to
ensure that PCICSRBAR (PEXCSRBAR on PCIe) isn't overlapping with
anything since we can't turn it off.

We first setup outbound windows based on what the board code setup
in the pci regions for MMIO and IO access.  Next we place PCICSRBAR
below the MMIO window.  After which we try to setup the inbound windows
to map as much of memory as possible.

On PCIe based controllers we are able to overmap the ATMU setup since
RX & TX links are separate but report the proper amount of inbound
address space to the region tracking to ensure there is no overlap.

On PCI based controllers we use as many inbound windows as available to
map as much of the memory as possible.

Additionally we changed all the CCSR register access to use proper IO
accessor functions.  Also had to add CONFIG_SYS_CCSRBAR_PHYS to some
86xx platforms that didn't have it defined.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-08-28 17:12:36 -05:00
Kumar Gala
8295b94400 pci/fsl_pci_init: Use PCIe capability to determine if controller is PCIe
Change the code to use the PCIe capabilities register to determine if we
are a PCIe controller or not.  Additionally cleaned up some white space
and formatting in the file.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-08-28 17:12:36 -05:00
Kumar Gala
cb151aa2cf pci/fsl_pci_init: Fold fsl_pci_setup_inbound_windows into fsl_pci_init
Every platform that calls fsl_pci_init calls fsl_pci_setup_inbound_windows
before it calls fsl_pci_init.  There isn't any reason to just call it
from fsl_pci_init and simplify things a bit.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-08-28 17:12:35 -05:00
Kumar Gala
fb3143b35e pci/fsl_pci_init: Fold pci_setup_indirect into fsl_pci_init
Every platform that calls fsl_pci_init calls pci_setup_indirect before
it calls fsl_pci_init.  There isn't any reason to just call it from
fsl_pci_init and simplify things a bit.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-08-28 17:12:35 -05:00
Reinhard Arlt
c2e49f706b mpc83xx: Add esd VME8349 board support
This patch adds support for the esd VME8349 board equipped with the
MPC8349. It's a VME PMC carrier board equipped with the Tundra
TSI148 VME-bridge.

Signed-off-by: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2009-07-27 18:36:36 -05:00
Peter Tyser
2c7920afaf 83xx: Replace CONFIG_MPC83[0-9]X with MPC83[0-9]x
Use the standard lowercase "x" capitalization that other Freescale
architectures use for CPU defines to prevent confusion and errors

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2009-06-12 20:47:17 +02:00
Kumar Gala
c8514622e2 fsl_pci: Renamed immap_fsl_pci.h to fsl_pci.h
Rename the pci header for FSL HW so we can move some prototypes
in there and stop doing explicit externs

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-04-04 10:21:29 -05:00
Yoshihiro Shimoda
06b18163b5 sh: Add some register value configurable to PCI of SH7780
Some register value was hardcoded for System memory size 128MB and
memory offset 0x08000000. This patch fixed the problem.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2009-03-12 23:58:30 +09:00
Yoshihiro Shimoda
06e2735eb8 sh: Add system memory registration to PCI for SH4
It is necessary for some pci device driver.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2009-03-12 23:58:30 +09:00
Anton Vorontsov
cc2a8c7751 PCI: Add pci_last_busno() helper
This is just a handy routine that reports last PCI busno: we walk
down all the hoses and return last hose's last_busno.

Will be used by PCI/PCIe initialization code.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
2009-02-23 15:51:10 -06:00
Becky Bruce
6e61fae4d3 drivers/pci: Create pci_map_bar function
It is no longer always true that the pci bus address can be
used as the virtual address for pci accesses.  pci_map_bar()
is created to return the virtual address for a pci region.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
2009-02-10 00:27:13 +01:00
Kumar Gala
2d43e873a2 pci: give preference to non-PCI_REGION_SYS_MEMORY regions when matching
When we search for an address match in pci_hose_{phys_to_bus,bus_to_phys}
we should give preference to memory regions that aren't system memory.

Its possible that we have over mapped system memory in the regions and
we want to avoid depending on the order of the regions.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-02-07 23:50:08 +01:00
Kumar Gala
ff4e66e93c pci: Rename PCI_REGION_MEMORY to PCI_REGION_SYS_MEMORY for clarity
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>
2009-02-07 23:50:04 +01:00
Jean-Christophe PLAGNIOL-VILLARD
8cb79b5f27 ixp: move pci drivers to drivers/pci
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-01-31 10:16:01 +01:00
Peter Tyser
7a89795911 pci/fsl_pci_init: Enable inbound PCI config cycles
Add fsl_pci_config_unlock() function to enable a
PCI/PCIe interface configured in agent/endpoint mode to
respond to inbound PCI configuration cycles.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2008-12-19 18:10:45 -06:00
Jean-Christophe PLAGNIOL-VILLARD
a319f14962 sh: r2dplus fix register access
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2008-12-10 23:11:36 +09:00
Kumar Gala
4c253fdb2a drivers/fsl_pci_init: Fix compile warning
fsl_pci_init.c: In function 'fsl_pci_setup_inbound_windows':
fsl_pci_init.c:122: warning: comparison is always true due to limited range of data type

The check only makes sense if we are CONFIG_PHYS_64BIT

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-12-09 21:15:03 +01:00
Becky Bruce
35db1c6d34 drivers/fsl_pci_init: Fix inbound window mapping bug
The current code will cause the creation of a 4GB window
starting at 0 if we have more than 4GB of RAM installed,
which overlaps with PCI_MEM space and causes pci_bus_to_phys()
to return erroneous information. Limit the size to 4GB - 1;
which causes the code to create one 2GB and one 1GB window
instead.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Andy Fleming <afleming@freescale.com>
2008-12-03 22:48:50 -06:00
Becky Bruce
cd42516242 powerpc: fix pci window initialization to work with > 4GB DRAM
The existing code has a few errors that need to be fixed in
order to support large RAM sizes.  Fix those, and add a
comment to make it clearer.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-27 16:27:58 -05:00
Kumar Gala
219542a1a6 pci/fsl_pci_init: Removed a bunch pointless trailing backslashes.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-27 16:26:07 -05:00
Kumar Gala
a2aab46072 pci/fsl_pci_init: Added fdt helper for setting up bus-ranges & dma-ranges
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andrew Fleming-AFLEMING <afleming@freescale.com>
2008-10-24 17:35:08 -05:00
Kumar Gala
b9a1fa9787 pci/fsl_pci_init: Add a common PCI inbound setup function
Add a common setup function that determines the pci_region(s) based
on how much memory we have in the system.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andrew Fleming-AFLEMING <afleming@freescale.com>
2008-10-24 17:35:05 -05:00