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MIPS: Lantiq: fix missing xbar kernel panic 

Commit 08b3c894e5 ("MIPS: lantiq: Disable xbar fpi burst mode")
accidentally requested the resources from the pmu address region
instead of the xbar registers region, but the check for the return
value of request_mem_region() was wrong. Commit 98ea51cb0c ("MIPS:
Lantiq: Fix another request_mem_region() return code check") fixed the
check of the return value of request_mem_region() which made the kernel
panics.
This patch now makes use of the correct memory region for the cross bar.

Fixes: 08b3c894e5 ("MIPS: lantiq: Disable xbar fpi burst mode")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: John Crispin <john@phrozen.org>
Cc: james.hogan@imgtec.com
Cc: arnd@arndb.de
Cc: sergei.shtylyov@cogentembedded.com
Cc: john@phrozen.org
Cc: <stable@vger.kernel.org> # 4.4.x-
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/15751
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
hifive-unleashed-5.1
Hauke Mehrtens 2017-03-15 23:26:42 +01:00 committed by Ralf Baechle
parent fb2155e3c3
commit 6ef90877ee
1 changed files with 1 additions and 1 deletions
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2
arch/mips/lantiq/xway/sysctrl.c
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@ -467,7 +467,7 @@ void __init ltq_soc_init(void)
if (!np_xbar)
panic("Failed to load xbar nodes from devicetree");
if (of_address_to_resource(np_pmu, 0, &res_xbar))
if (of_address_to_resource(np_xbar, 0, &res_xbar))
panic("Failed to get xbar resources");
if (!request_mem_region(res_xbar.start, resource_size(&res_xbar),
res_xbar.name))