Commit Graph

175 Commits

Author SHA1 Message Date
Paul Mundt
5713e60210 sh: pci: Initial PCI-Express support for SH7786 Urquell board.
This adds initial support for the PCI-Express module in the SH7786,
particularly as it relates to the urquell platform. Presently it is
only supported in root complex mode, with endpoint mode still requiring
more debugging. 29/32-bit mode and lane configurations are selectable via
board mode pins, and are otherwise fixed.

Only 4x and 1x PCI channels are presently handled, the PCI bridge still
requires additional debugging and stabilization in hardware.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-17 18:20:48 +09:00
Paul Mundt
66765fe1b6 sh: pci: SH7786 PCI ops.
This adds in preliminary support for the SH7786 PCIe module PCI ops,
and the corresponding module definitions.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-16 06:26:08 +09:00
Paul Mundt
8c6b44d00a sh: pci: Allow register_pci_controller() to handle overlapping regions.
Some host controllers (such as SH7786) have overlapping regions that are
fixed in hardware. The resource allocator does the right thing in
managing this space already, so the conflict case is non-fatal.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-16 06:01:58 +09:00
Huang Weiyi
78c99ba1b1 sh: pci: remove duplicated #include's
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-06-14 17:48:43 +09:00
Paul Mundt
5582b0648d sh: pci-sh7780: Fix up for PCI_DISABLE_MWI changes.
This fixes a build error where references to pci_cache_line_size are
undefined, as this ceases to be exported when PCI_DISABLE_MWI is enabled,
as is now the default.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-27 00:12:58 +09:00
Paul Mundt
d076d2bd0d sh: pci-sh7751: Initialize io_map_base in controller definition.
As there is only a single controller and remapping has no impact for the
address range in question, just initialize it directly in the controller
definition. This fixes up boot time warnings about not having the field
initialized.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-26 23:10:15 +09:00
Magnus Damm
3d6ad46021 sh: multiple vectors per irq - sh7760
Update intc tables and platform data to use one linux irq
per maskable interrupt source instead of keeping the one-to-one
mapping between vectors and linux irqs.

This fixes potential irq masking issues for sh7760 hardware
blocks such as DMAC/TMU2/REF.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-11 21:59:58 +09:00
Paul Mundt
0fb849b9d7 sh: Integrate the SH-5 onchip_remap() more coherently.
Presently this is special-cased for early initialization. While there are
situations where these static early initializations are still necessary,
with minor changes it is possible to use this for the regular ioremap
implementation as well. This allows us to kill off the special-casing for
the remap completely and to start tidying up all of the SH-5
special-casing in drivers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-07 18:10:27 +09:00
Paul Mundt
cf242007a1 sh: pci: Rename pci-new.c to pci.c.
pci-new.c is now in a state to replace the old pci.c, rename it
accordingly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 21:53:33 +09:00
Paul Mundt
35bcfffd86 sh: pci: Roll pci-lib in to pci-new.
Now that the pci-auto cruft is gone, pci-lib can go away.
Roll it back in to pci-new.c where it originally split off from.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 21:51:19 +09:00
Paul Mundt
805fcc8899 sh: pci: Kill off the last remnants of the now unused pci-auto code.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 21:46:42 +09:00
Paul Mundt
2d5efc190e sh: pci: Move the se7751 fixups in to arch/sh/drivers/pci/.
The se7751 was still doing the PCI fixups in its own board directory,
so we move it over to arch/sh/drivers/pci/ with the rest of the board
fixups. It has bitrotted significantly over the years, so will still
likely need a bit of work to bring back up to date.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 21:42:59 +09:00
Paul Mundt
951a681bda sh: pci: Convert dreamcast to new-style interface.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 21:34:36 +09:00
Paul Mundt
37c8ac361e sh: pci: Consolidate lboxre2 and r2d IRQ fixups.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 21:27:15 +09:00
Paul Mundt
84972ec0c2 sh: pci: Rename SH7751 platform ops files to fixups.
None of these contain pci_ops, only IRQ routing bits, rename them
accordingly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 21:17:10 +09:00
Paul Mundt
757e3c16f8 sh: pci: Rewrite SH7751 PCI support to follow SH7780.
This follows the similar sort of scheme that the refactored SH7780 code
uses, using a 64MB CS3 mapping to handle the window0 case, and simply
discarding window1. This vastly simplifies the code, and allows most of
the board-specific setup to go die.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 21:11:07 +09:00
Paul Mundt
a5b0804712 sh: pci: Rename ops-cayman -> fixups-cayman.
Now that ops-cayman.c only contains IRQ routing fixups, rename it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 20:41:45 +09:00
Paul Mundt
48e4237d96 sh: pci: Convert the SH-5 code over to the new interface.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 20:40:48 +09:00
Paul Mundt
3444f5ec49 sh: pci: Tidy up the dreamcast PCI support.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 20:22:05 +09:00
Paul Mundt
0db38cea69 sh: pci: Kill off legacy ide quirks.
These fixups seem to have bitrotted a bit since their introduction in the
2.4 days. As we never had much use for them in the first place, and
nothing is using them any more, kill them off the rest of the way.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 19:54:47 +09:00
Paul Mundt
0e75148108 sh: pci: Consolidate pcibios_setup() in pci-lib.
This wasn't really being used for anything useful, so just stub it in
pci-lib.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 19:48:48 +09:00
Paul Mundt
d556fcc101 sh: pci: Flag the dreamcast BBA as IORESOURCE_PCI_FIXED.
This isn't a real BAR, so prevent any attempts to move it, as we don't
wish to encourage a bus luck by overzealous PCI initialization code.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 19:31:20 +09:00
Paul Mundt
bb3396477b sh: pci: Kill off superfluous lboxre2 pci fixups.
This is a verbatim copy of the r2d one, use that instead.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 19:26:45 +09:00
Paul Mundt
5ba7205fc4 sh: pci: Kill off the now unused hose->io_base.
Nothing is using this any more, so kill it off.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 19:00:32 +09:00
Paul Mundt
3f8daeacd7 sh: pci: Consolidate the remaining common bits.
This moves the remaining common bits in to pci-lib. Thereby reducing
pci.c/pci-new.c to simple bus fixups and controller registration.

As more platforms are moved over, the old code will disappear completely
and the pci-new bits will be rolled in to pci-lib, eventually replacing
pci.c completely.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 18:53:41 +09:00
Paul Mundt
5160d3f782 sh: pci: Consolidate bus<->resource mapping in pci-lib.
Now that the io and mem offsets are tracked accordingly, the pci-new
version of the bus<->resource mappers can be used generically. This
moves them in to pci-lib.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 18:47:21 +09:00
Paul Mundt
09cfeb133e sh: pci: Track io and mem_offset per-channel.
This implements a per-hose offset for I/O and mem resources.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 18:42:00 +09:00
Paul Mundt
e79066a659 sh: pci: New-style controller registration.
This moves off of the board_pci_channels[] approach for bus registration
and over to a cleaner register_pci_controller(), all derived from the
MIPS code.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 18:29:22 +09:00
Paul Mundt
0bb34a6bf1 sh: pci: Consolidate pci_iomap() and use the generic I/O base.
This consolidates the pci_iomap() definitions and reworks how the I/O
port base is handled. PCI channels can register their own I/O map base,
or if none is provided, the system-wide generic I/O base is used instead.

Functionally nothing changes, while this allows us to kill off lots of
I/O address special casing and lookups.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 16:38:00 +09:00
Paul Mundt
394b6d2fe6 sh: pci: Kill off unused pcibios_fixup().
This is left over cruft that hasn't been used by anything in a long time,
kill off bits that weren't purged previously.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 16:18:46 +09:00
Paul Mundt
a3c0e0d003 sh: pci: Consolidate pcibios_align_resource() definitions.
This introduces a saner pcibios_align_resource() that can be used
regardless of whether pci-auto or pci-new are being used, and
consolidates it in pci-lib.c.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 16:14:29 +09:00
Paul Mundt
9833385131 sh: pci: HAVE_PCI_MMAP support.
Derived from the MIPS version, now uses pgprot_noncached().

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 15:51:45 +09:00
Paul Mundt
4c5107e445 sh: pci: Split out new-style PCI core.
This splits off a 'pci-new.c' which is aimed at gradually replacing the
pci-auto backend and the arch/sh/drivers/pci/pci.c core respectively.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 15:43:36 +09:00
Paul Mundt
9ade1217c9 sh: pci: Drop asm-generic/pci.h, so we can use our own fixups.
The new PCI code wants its own bus<->resource mappings instead of the
generic equivalents, so drop the asm-generic include in preparation.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-20 15:38:25 +09:00
Paul Mundt
62c7ae87cb sh: pci: Start unifying the SH7780 PCIC initialization.
This starts moving out the common initialization bits from the various
fixup paths in to the shared init path.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-17 20:37:16 +09:00
Paul Mundt
a6d377b696 sh: pci: Consolidate SH7780 PCIC IRQ routing.
Now that the platform code is a bit leaner, we can start consolidating
the various IRQ routing implementations. There are effectively only 2
variants, and the others can use those directly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-17 20:11:44 +09:00
Paul Mundt
4c7a47de89 sh: pci: Kill off platform-specific multi-window mappings.
Commit 68b42d1b54 ("sh: sh7785lcr: Map
whole PCI address space.") changed around the semantics of how various
chip-selects are made accessible to PCI. Now that there is a single
large mapping covering from CS0-CS6, there is no longer any need to
do multi-window mapping. Subsequently, all of the differing
implementations can be consolidated in to pci-sh7780.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-17 17:21:36 +09:00
Paul Mundt
ab1363a892 sh: pci: Consolidate PCI I/O and mem window definitions for SH7780.
This consolidates all of the PCI I/O and memory window definitions across
the pci-sh7780 users in pci-sh7780 itself. No functional changes, in that
every platform had exactly the same implementation.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-17 17:07:47 +09:00
Paul Mundt
f1dcab7566 sh: pci: Set the I/O port base to the SH7780 I/O window default.
Presently the I/O port base isn't being set anywhere, which allows things
like generic_inl() to blow up. Fix this up to point at the PCI IO window.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-17 17:00:27 +09:00
Paul Mundt
c66c1d79a9 sh: pci: Set pci_cache_line_size on SH7780 via the PCICLS register.
The SH7780 PCIC contains a read-only cache line size register that we can
derive pci_cache_line_size from. So, make sure that the software idea of
the cache line size actually matches the host controller's idea.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-17 16:38:00 +09:00
Paul Mundt
ab78cbcf68 sh: pci: Use the proper write size for class/sub-class code.
Don't use pci_write_reg() for these, as it defaults to 32-bit. Rather
than using the helper, use __raw_writeb() directly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-17 15:08:01 +09:00
Paul Mundt
4e7b7fdb12 sh: pci: Rework SH7780 host controller detection.
This reworks how the host controller is probed, and makes it a bit more
verbose in the event a new type of controller is detected. Additionally,
we also log the revision information.

This now uses the proper access sizes for the vendor/device registers,
rather than relying on a larger access that encapsulated both of them.
Not all devices support 32-bit read cycles for these registers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-17 15:05:19 +09:00
Paul Mundt
0bbc9bc318 sh: pci: Set class/sub-class code correctly for SH7780 PCIC.
The SH7780 PCI host controller implements a configuration header that
requires a fair bit of hand-holding to initialize properly. By default
it appears as a pre-2.0 host controller given the zeroed out class code,
so fix this up properly.

Some boards that happened to be using the R7780RP version of the PCIC
fixups had set this correctly, but this belongs in the standard
initialization, and is by no means board specific.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-17 14:09:09 +09:00
Paul Mundt
7e4ba0d77c sh: pci: Prefer P1SEG over P1SEGADDR for CONFIG_CMD.
P1SEGADDR is obsolete and will be killed off completely in the future,
so transition off of it and reference P1SEG explicitly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-17 14:07:57 +09:00
Paul Mundt
b627b4ed3d sh: pci: Move se7780 INTC fixups out of pci-sh7780.c.
These fixups belong in the board INTC setup code, not in the middle of
pci-sh7780.c.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-17 13:00:18 +09:00
Paul Mundt
84971bb401 sh: pci: Kill off useless debugging printk() in pci-sh7780 init.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-17 12:44:25 +09:00
Paul Mundt
0232ba9ce0 sh: pci: Kill off unused SH4_PCIC_NO_RESET code.
Nothing ended up using this anymore, so just kill it off.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-16 18:01:31 +09:00
Paul Mundt
f1a9ba8f15 sh: pci: drop duplicate PCIC fixups for SE7780 and SH7785LCR.
SE7780 has the same PCIC fixup as SDK7780, and SH7785LCR the same
as R7780RP. Switch to using those, and drop the duplicate code.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-16 16:00:15 +09:00
Paul Mundt
3aabce8d3d sh: sh7785lcr: Update for recent PCI changes.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-16 16:00:15 +09:00
Paul Mundt
10591578c8 sh: drop duplicate symbol export on dreamcast and sh7785lcr.
With board_pci_channels now being exported in a single place, update the
boards that duplicated the export.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-04-16 16:00:15 +09:00