8fe5ad5d33
This change makes the names of Broadcom targets consistent by using the common notation based on SoC/CPU ID (which is used internally anyway), bcmXXXX instead of brcmXXXX. This is even used for target TITLE in make menuconfig already, only the short target name used brcm so far. Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
31 lines
1.1 KiB
Diff
31 lines
1.1 KiB
Diff
From 5c81397a0147ea59c778d1de14ef54e2268221f6 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Wed, 8 Apr 2015 06:58:11 +0200
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Subject: [PATCH] ssb: reject PCI writes setting CardBus bridge resources
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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If SoC has a CardBus we can set resources of device at slot 1 only. It's
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impossigle to set bridge resources as it simply overwrites device 1
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configuration and usually results in Data bus error-s.
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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---
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drivers/ssb/driver_pcicore.c | 4 ++++
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1 file changed, 4 insertions(+)
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--- a/drivers/ssb/driver_pcicore.c
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+++ b/drivers/ssb/driver_pcicore.c
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@@ -164,6 +164,10 @@ static int ssb_extpci_write_config(struc
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WARN_ON(!pc->hostmode);
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if (unlikely(len != 1 && len != 2 && len != 4))
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goto out;
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+ /* CardBus SoCs allow configuring dev 1 resources only */
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+ if (extpci_core->cardbusmode && dev != 1 &&
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+ off >= PCI_BASE_ADDRESS_0 && off <= PCI_BASE_ADDRESS_5)
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+ goto out;
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addr = get_cfgspace_addr(pc, bus, dev, func, off);
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if (unlikely(!addr))
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goto out;
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