Merge tag 'mips_fixes_4.18_5' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS fix from Paul Burton:
 "Here's one more MIPS fix, reverting an errata workaround that was
  merged for v4.18-rc2 but has since been found to cause system hangs on
  some BCM4718A1-based systems by the OpenWRT project"

* tag 'mips_fixes_4.18_5' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  Revert "MIPS: BCM47XX: Enable 74K Core ExternalSync for PCIe erratum"

2 files changed, 0 insertions, 9 deletions

diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c
index 8c9cbf13d32a..6054d49e608e 100644
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -212,12 +212,6 @@ static int __init bcm47xx_cpu_fixes(void)
                  */
                 if (bcm47xx_bus.bcma.bus.chipinfo.id == BCMA_CHIP_ID_BCM4706)
                         cpu_wait = NULL;
-
-                /*
-                 * BCM47XX Erratum "R10: PCIe Transactions Periodically Fail"
-                 * Enable ExternalSync for sync instruction to take effect
-                 */
-                set_c0_config7(MIPS_CONF7_ES);
                 break;
 #endif
         }
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index 0bc270806ec5..ae461d91cd1f 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -681,8 +681,6 @@
 #define MIPS_CONF7_WII          (_ULCAST_(1) << 31)
 
 #define MIPS_CONF7_RPS          (_ULCAST_(1) << 2)
-/* ExternalSync */
-#define MIPS_CONF7_ES           (_ULCAST_(1) << 8)
 
 #define MIPS_CONF7_IAR          (_ULCAST_(1) << 10)
 #define MIPS_CONF7_AR           (_ULCAST_(1) << 16)
@@ -2767,7 +2765,6 @@ __BUILD_SET_C0(status)
 __BUILD_SET_C0(cause)
 __BUILD_SET_C0(config)
 __BUILD_SET_C0(config5)
-__BUILD_SET_C0(config7)
 __BUILD_SET_C0(intcontrol)
 __BUILD_SET_C0(intctl)
 __BUILD_SET_C0(srsmap)