feat(imx8ulp): enable the DDR frequency scaling support
Enable the DDR frequency scaling support on i.MX8ULP.
Normally, the freq_index define is as below:
0: boot frequency;
1: low frequency(PLL bypassed);
2. high frequency(PLL ON).
Currently, DDR DFS only do frequency switching between
Low freq and high freq.
Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
Change-Id: I3acd8bdf75e2dd6dff645b9f597dcfc0a756c428
diff --git a/plat/imx/common/include/imx_sip_svc.h b/plat/imx/common/include/imx_sip_svc.h
index 86523da..e154530 100644
--- a/plat/imx/common/include/imx_sip_svc.h
+++ b/plat/imx/common/include/imx_sip_svc.h
@@ -104,4 +104,9 @@
int scmi_handler(uint32_t smc_fid, u_register_t x1, u_register_t x2, u_register_t x3);
int imx_hifi_xrdc(uint32_t smc_fid);
+#if defined(PLAT_imx8ulp)
+int dram_dvfs_handler(uint32_t smc_fid, void *handle,
+ u_register_t x1, u_register_t x2, u_register_t x3);
+#endif
+
#endif /* __IMX_SIP_SVC_H__ */