Commit Graph

8 Commits

Author SHA1 Message Date
Nicolas Pitre 3924996bab [ARM] Kirkwood: restrict the scope of the PCIe reset workaround
Commit 21f0ba90a4 "orion/kirkwood: reset PCIe unit on boot" made the
reset of the PCIe unit unconditional.  While this may fix problems on some
targets, this also causes problems on other targets.

Saeed Bishara <saeed@marvell.com> said about the original problem: "We
couln't pinpoint the root cause of this issue, actually we failed to
reproduce that issue."

So let's restrict the reset of the PCIe unit only to the target where
the original problem was observed.

Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
2010-10-21 15:52:03 -04:00
Olaf Rempel 21f0ba90a4 [ARM] orion/kirkwood: reset PCIe unit on boot
Patch found in QNAPs vendor source package, with some cleanups
(proper defines, shortened max. timeout from 1s to 200ms).

Without this patch the PCIe SATA controller (Marvell 88sx7042/sata_mv)
in my QNAP TS-419P (Marvell 88f6281/Kirkwood) stops working after a
few minutes.

The symptomes are described in this thread:
http://marc.info/?l=linux-ide&m=124822863706181&w=2

[ Note: this is a workaround in need of a better analysis/solution -- NP ]

Acked-by: Saeed Bishara <saeed@marvell.com>
Tested-by: Bernhard R. Link <brl@pcpool00.mathematik.uni-freiburg.de>
Seconded-by: Martin Michlmayr <tbm@cyrius.com>
I'm_not_very_happy_with_it-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
2010-07-16 22:01:57 -04:00
Lennert Buytenhek 7788cd5557 [ARM] Orion: fix PCIe inbound window programming when RAM size is not a power of two
The PCIe inbound window size is supposed to be a power of two.  If
the total amount of RAM installed in the system is not a power of two,
round it up such that it is.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2009-12-28 23:50:49 -05:00
Saeed Bishara 82676d7625 [ARM] Orion: fix bug in pcie configuration cycle function field mask
The function field is 3 bits.

Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2008-12-02 16:53:26 -05:00
Lennert Buytenhek 6f088f1d21 [ARM] Move include/asm-arm/plat-orion to arch/arm/plat-orion/include/plat
This patch performs the equivalent include directory shuffle for
plat-orion, and fixes up all users.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
2008-08-09 13:44:58 +02:00
Lennert Buytenhek a9311cfed2 [ARM] Orion: PCIe x4/x1 detection support
The Discovery Duo (MV78xx0) has two x4 PCIe ports which can either
be used in x4 mode or in quad x1 mode.  This patch adds an accessor
function to the generic plat-orion PCIe handling code to detect in
which of the two modes we're running (which is determined by strap
pins and/or configured by the bootloader).

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
2008-06-22 22:45:09 +02:00
Nicolas Pitre b488a5ed12 [ARM] 4954/1: Orion: fix some function section mismatch
Without this, lspci won't work.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-04-10 15:27:09 +01:00
Lennert Buytenhek abc0197d7a plat-orion: share PCIe handling code
Split off Orion PCIe handling code into plat-orion/.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Reviewed-by: Tzachi Perelstein <tzachi@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
2008-03-27 14:51:40 -04:00