firmware: qcom: scm: add OCMEM lock/unlock interface
Add support for the OCMEM lock/unlock interface that 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; minor reformatting.]
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>
diff --git a/drivers/firmware/qcom_scm.h b/drivers/firmware/qcom_scm.h
index 99506bd..ef293ee 100644
--- a/drivers/firmware/qcom_scm.h
+++ b/drivers/firmware/qcom_scm.h
@@ -42,6 +42,15 @@ extern int __qcom_scm_hdcp_req(struct device *dev,
extern void __qcom_scm_init(void);
+#define QCOM_SCM_OCMEM_SVC 0xf
+#define QCOM_SCM_OCMEM_LOCK_CMD 0x1
+#define QCOM_SCM_OCMEM_UNLOCK_CMD 0x2
+
+extern int __qcom_scm_ocmem_lock(struct device *dev, u32 id, u32 offset,
+ u32 size, u32 mode);
+extern int __qcom_scm_ocmem_unlock(struct device *dev, u32 id, u32 offset,
+ u32 size);
+
#define QCOM_SCM_SVC_PIL 0x2
#define QCOM_SCM_PAS_INIT_IMAGE_CMD 0x1
#define QCOM_SCM_PAS_MEM_SETUP_CMD 0x2