diff options
Diffstat (limited to 'drivers/bus/fsl-mc/fsl-mc-bus.c')
| -rw-r--r-- | drivers/bus/fsl-mc/fsl-mc-bus.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c index 41861ca5c8f1..e5b4830cf3c5 100644 --- a/drivers/bus/fsl-mc/fsl-mc-bus.c +++ b/drivers/bus/fsl-mc/fsl-mc-bus.c @@ -1207,6 +1207,16 @@ static int fsl_mc_bus_remove(struct platform_device *pdev) bus_unregister_notifier(&fsl_mc_bus_type, &fsl_mc_nb); + if (mc->fsl_mc_regs) { + /* + * Pause the MC firmware so that it doesn't crash in certain + * scenarios, such as kexec. + */ + writel(readl(mc->fsl_mc_regs + FSL_MC_GCR1) | + (GCR1_P1_STOP | GCR1_P2_STOP), + mc->fsl_mc_regs + FSL_MC_GCR1); + } + return 0; } |