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MIPS: PCI: use information from 1-wire PROM for IOC3 detection

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IOC3 chips in SGI system are conntected to a bridge ASIC, which has
a 1-wire prom attached with part number information. This changeset
uses this information to create PCI subsystem information, which
the MFD driver uses for further platform device setup.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-rtc@vger.kernel.org
Cc: linux-serial@vger.kernel.org
This commit is contained in:
Thomas Bogendoerfer
2019-10-03 11:52:30 +02:00
committed by Paul Burton
parent 8c2a2b8c2f
commit 5dc76a96e9
4 changed files with 175 additions and 8 deletions
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1
arch/mips/include/asm/pci/bridge.h
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@@ -807,6 +807,7 @@ struct bridge_controller {
unsigned long intr_addr;
struct irq_domain *domain;
unsigned int pci_int[8];
u32 ioc3_sid[8];
nasid_t nasid;
};