diff options
| author | Rob Clark <robdclark@gmail.com> | 2019-08-23 05:16:34 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2019-10-07 08:17:27 -0700 |
| commit | 0434a4061471a9afc2b2061add496e58ba4bb92d (patch) | |
| tree | 4fe78f65078d57d2a039b869a263e0c7a59d464b /drivers/firmware/qcom_scm-32.c | |
| parent | b0a1614fb1f58520938968ebe1f4f11bcf34839e (diff) | |
firmware: qcom: scm: add support to restore secure config to qcm_scm-32
Add support to restore the secure configuration for qcm_scm-32.c. This
is needed by the On Chip MEMory (OCMEM) that is present on some
Snapdragon devices.
Signed-off-by: Rob Clark <robdclark@gmail.com>
[masneyb@onstation.org: ported to latest kernel; set ctx_bank_num to
spare parameter.]
Signed-off-by: Brian Masney <masneyb@onstation.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Gabriel Francisco <frc.gabrielgmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/firmware/qcom_scm-32.c')
| -rw-r--r-- | drivers/firmware/qcom_scm-32.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/firmware/qcom_scm-32.c b/drivers/firmware/qcom_scm-32.c index 4c2514e5e249..5d90b7f5ab5a 100644 --- a/drivers/firmware/qcom_scm-32.c +++ b/drivers/firmware/qcom_scm-32.c @@ -617,7 +617,22 @@ int __qcom_scm_assign_mem(struct device *dev, phys_addr_t mem_region, int __qcom_scm_restore_sec_cfg(struct device *dev, u32 device_id, u32 spare) { - return -ENODEV; + struct msm_scm_sec_cfg { + __le32 id; + __le32 ctx_bank_num; + } cfg; + int ret, scm_ret = 0; + + cfg.id = cpu_to_le32(device_id); + cfg.ctx_bank_num = cpu_to_le32(spare); + + ret = qcom_scm_call(dev, QCOM_SCM_SVC_MP, QCOM_SCM_RESTORE_SEC_CFG, + &cfg, sizeof(cfg), &scm_ret, sizeof(scm_ret)); + + if (ret || scm_ret) + return ret ? ret : -EINVAL; + + return 0; } int __qcom_scm_iommu_secure_ptbl_size(struct device *dev, u32 spare, |