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| /rk3399_ARM-atf/plat/nxp/common/warm_reset/ |
| H A D | plat_warm_reset.c | 0f33f50e21de2285727bfb6a3adf0eff762ea330 Wed Dec 09 08:32:40 UTC 2020 Pankaj Gupta <pankaj.gupta@nxp.com> nxp: warm reset support to retain ddr content
NXP: Added warm reset handler to handle SMC PSCI_SYSTEM_RESET2
raised from kernel (> 5.4).
As part of first cold boot, DDR training data is stored in NV storage.
As part of this SMC handling, following things are done:
- DDR is put in self-refresh mode to retain the content of DDR.
- Reset cause is saved.
- Reset is triggered.
On next boot to last warm-reset, DDR training is restored from
the NV storage.
Signed-off-by: Ashish Kumar <ashish.kumar@nxp.com>
Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Signed-off-by: Udit Agarwal <udit.agarwal@nxp.com>
Signed-off-by: Priyanka Singh <priyanka.singh@nxp.com>
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: I8e4fb0824887af49e959c93825e2ab0ba887fc9d
|
| H A D | warm_reset.mk | 0f33f50e21de2285727bfb6a3adf0eff762ea330 Wed Dec 09 08:32:40 UTC 2020 Pankaj Gupta <pankaj.gupta@nxp.com> nxp: warm reset support to retain ddr content
NXP: Added warm reset handler to handle SMC PSCI_SYSTEM_RESET2
raised from kernel (> 5.4).
As part of first cold boot, DDR training data is stored in NV storage.
As part of this SMC handling, following things are done:
- DDR is put in self-refresh mode to retain the content of DDR.
- Reset cause is saved.
- Reset is triggered.
On next boot to last warm-reset, DDR training is restored from
the NV storage.
Signed-off-by: Ashish Kumar <ashish.kumar@nxp.com>
Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Signed-off-by: Udit Agarwal <udit.agarwal@nxp.com>
Signed-off-by: Priyanka Singh <priyanka.singh@nxp.com>
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: I8e4fb0824887af49e959c93825e2ab0ba887fc9d
|
| H A D | plat_warm_rst.h | 0f33f50e21de2285727bfb6a3adf0eff762ea330 Wed Dec 09 08:32:40 UTC 2020 Pankaj Gupta <pankaj.gupta@nxp.com> nxp: warm reset support to retain ddr content
NXP: Added warm reset handler to handle SMC PSCI_SYSTEM_RESET2
raised from kernel (> 5.4).
As part of first cold boot, DDR training data is stored in NV storage.
As part of this SMC handling, following things are done:
- DDR is put in self-refresh mode to retain the content of DDR.
- Reset cause is saved.
- Reset is triggered.
On next boot to last warm-reset, DDR training is restored from
the NV storage.
Signed-off-by: Ashish Kumar <ashish.kumar@nxp.com>
Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Signed-off-by: Udit Agarwal <udit.agarwal@nxp.com>
Signed-off-by: Priyanka Singh <priyanka.singh@nxp.com>
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: I8e4fb0824887af49e959c93825e2ab0ba887fc9d
|