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bmips: bcm6358: fix EHCI/OHCI kernel panics

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ARCH_HAS_SYNC_DMA_FOR_CPU_ALL is causing kernel panics when EHCI or OHCI are
enabled.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
This commit is contained in:
Álvaro Fernández Rojas 2021-02-23 10:52:06 +01:00
parent e4d1163de4
commit 09bbf55817
2 changed files with 70 additions and 0 deletions
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8
target/linux/bmips/dts/bcm6358-huawei-hg556a-b.dts
View File

@ -126,6 +126,14 @@
};
};
&ehci {
status = "okay";
};
&ohci {
status = "okay";
};
&pflash {
status = "okay";

62
target/linux/bmips/patches-5.10/208-mips-bmips-disable-ARCH_HAS_SYNC_DMA_FOR_CPU_ALL.patch Normal file
View File

@ -0,0 +1,62 @@
From 84c06b4a1dfa3e021fdbcafaff8cebfdec462402 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
Date: Tue, 23 Feb 2021 10:39:48 +0100
Subject: [PATCH] mips: bmips: disable ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Enabling this option causes kernel panics on BCM6358 with EHCI/OHCI:
[ 3.881739] usb 1-1: new high-speed USB device number 2 using ehci-platform
[ 3.895011] Reserved instruction in kernel code[#1]:
[ 3.900113] CPU: 0 PID: 1 Comm: init Not tainted 5.10.16 #0
[ 3.905829] $ 0 : 00000000 10008700 00000000 77d94060
[ 3.911238] $ 4 : 7fd1f088 00000000 81431cac 81431ca0
[ 3.916641] $ 8 : 00000000 ffffefff 8075cd34 00000000
[ 3.922043] $12 : 806f8d40 f3e812b7 00000000 000d9aaa
[ 3.927446] $16 : 7fd1f068 7fd1f080 7ff559b8 81428470
[ 3.932848] $20 : 00000000 00000000 55590000 77d70000
[ 3.938251] $24 : 00000018 00000010
[ 3.943655] $28 : 81430000 81431e60 81431f28 800157fc
[ 3.949058] Hi : 00000000
[ 3.952013] Lo : 00000000
[ 3.955019] epc : 80015808 setup_sigcontext+0x54/0x24c
[ 3.960464] ra : 800157fc setup_sigcontext+0x48/0x24c
[ 3.965913] Status: 10008703 KERNEL EXL IE
[ 3.970216] Cause : 00800028 (ExcCode 0a)
[ 3.974340] PrId : 0002a010 (Broadcom BMIPS4350)
[ 3.979170] Modules linked in: ohci_platform ohci_hcd fsl_mph_dr_of ehci_platform ehci_fsl ehci_hcd gpio_button_hotplug usbcore nls_base usb_common
[ 3.992907] Process init (pid: 1, threadinfo=(ptrval), task=(ptrval), tls=77e22ec8)
[ 4.000776] Stack : 81431ef4 7fd1f080 81431f28 81428470 7fd1f068 81431edc 7ff559b8 81428470
[ 4.009467] 81431f28 7fd1f080 55590000 77d70000 77d5498c 80015c70 806f0000 8063ae74
[ 4.018149] 08100002 81431f28 0000000a 08100002 81431f28 0000000a 77d6b418 00000003
[ 4.026831] ffffffff 80016414 80080734 81431ecc 81431ecc 00000001 00000000 04000000
[ 4.035512] 77d54874 00000000 00000000 00000000 00000000 00000012 00000002 00000000
[ 4.044196] ...
[ 4.046706] Call Trace:
[ 4.049238] [<80015808>] setup_sigcontext+0x54/0x24c
[ 4.054356] [<80015c70>] setup_frame+0xdc/0x124
[ 4.059015] [<80016414>] do_notify_resume+0x1dc/0x288
[ 4.064207] [<80011b50>] work_notifysig+0x10/0x18
[ 4.069036]
[ 4.070538] Code: 8fc300b4 00001025 26240008 <ac820000> ac830004 3c048063 0c0228aa 24846a00 26240010
[ 4.080686]
[ 4.082517] ---[ end trace 22a8edb41f5f983b ]---
[ 4.087374] Kernel panic - not syncing: Fatal exception
[ 4.092753] Rebooting in 1 seconds..
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
arch/mips/Kconfig | 1 -
1 file changed, 1 deletion(-)
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -250,7 +250,6 @@ config ATH79
config BMIPS_GENERIC
bool "Broadcom Generic BMIPS kernel"
select ARCH_HAS_RESET_CONTROLLER
- select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
select ARCH_HAS_PHYS_TO_DMA
select BOOT_RAW
select NO_EXCEPT_FILL