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| author | Javier Martinez Canillas <javier@osg.samsung.com> | 2015-10-21 17:15:40 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2015-10-27 11:11:06 +0100 |
| commit | 1c6e58d83615678875bf52747f8841c49291dfcf (patch) | |
| tree | abf81570242ef8abbbed36804c2fe1c5e1375a46 /drivers/mmc | |
| parent | 6397b7f5f405f30f03f67ef829306c5af6d3369b (diff) | |
| download | linux-rpi3-1c6e58d83615678875bf52747f8841c49291dfcf.tar.gz linux-rpi3-1c6e58d83615678875bf52747f8841c49291dfcf.tar.bz2 linux-rpi3-1c6e58d83615678875bf52747f8841c49291dfcf.zip | |
mmc: pwrseq: Use highest priority for eMMC restart handler
The pwrseq_emmc driver does a eMMC card reset before a system reboot to
allow broken or limited ROM boot-loaders (that don't have an eMMC reset
logic) to be able to read the second stage from the eMMC.
But this has to be called before a system reboot handler and while most
of them use the priority 128, there are other restart handlers (such as
the syscon-reboot one) that use a higher priority. So, use the highest
priority to make sure that the eMMC hw is reset before a system reboot.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/pwrseq_emmc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/mmc/core/pwrseq_emmc.c b/drivers/mmc/core/pwrseq_emmc.c index 137c97fb7aa8..ad4f94ec7e8d 100644 --- a/drivers/mmc/core/pwrseq_emmc.c +++ b/drivers/mmc/core/pwrseq_emmc.c @@ -84,11 +84,11 @@ struct mmc_pwrseq *mmc_pwrseq_emmc_alloc(struct mmc_host *host, /* * register reset handler to ensure emmc reset also from - * emergency_reboot(), priority 129 schedules it just before - * system reboot + * emergency_reboot(), priority 255 is the highest priority + * so it will be executed before any system reboot handler. */ pwrseq->reset_nb.notifier_call = mmc_pwrseq_emmc_reset_nb; - pwrseq->reset_nb.priority = 129; + pwrseq->reset_nb.priority = 255; register_restart_handler(&pwrseq->reset_nb); pwrseq->pwrseq.ops = &mmc_pwrseq_emmc_ops; |