imx: add i.MX8 SoCs thermal alarm SIP(silicon provider) service support

For NXP's i.MX8 SoCs with system controller inside, thermal sensors
are maintained by SCFW, Linux needs to call SMC to trap to TF-A for
thermal alarm operation etc. by calling SCFW API.

This patch adds temperature alarm SIP service support.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

diff --git a/plat/imx/common/imx_sip_handler.c b/plat/imx/common/imx_sip_handler.c
index a096a0606f06cd3793716b7cd7df55397d7b2a74..469e2953255662f9cab7b79d8c55cad3e918f2b7 100644 (file)
--- a/plat/imx/common/imx_sip_handler.c
+++ b/plat/imx/common/imx_sip_handler.c
@@ -128,3 +128,12 @@ int imx_otp_handler(uint32_t smc_fid,
 
        return ret;
 }
+
+int imx_misc_set_temp_handler(uint32_t smc_fid,
+                   u_register_t x1,
+                   u_register_t x2,
+                   u_register_t x3,
+                   u_register_t x4)
+{
+       return sc_misc_set_temp(ipc_handle, x1, x2, x3, x4);
+}

diff --git a/plat/imx/common/imx_sip_svc.c b/plat/imx/common/imx_sip_svc.c
index e7afb3c6bba60b7d09da5327b71bf45df1612753..d66c24e09590b17fffec572d542b4560c754763f 100644 (file)
--- a/plat/imx/common/imx_sip_svc.c
+++ b/plat/imx/common/imx_sip_svc.c
@@ -37,6 +37,8 @@ static uintptr_t imx_sip_handler(unsigned int smc_fid,
        case IMX_SIP_OTP_READ:
        case IMX_SIP_OTP_WRITE:
                return imx_otp_handler(smc_fid, handle, x1, x2);
+       case IMX_SIP_MISC_SET_TEMP:
+               SMC_RET1(handle, imx_misc_set_temp_handler(smc_fid, x1, x2, x3, x4));
 #endif
        default:
                WARN("Unimplemented i.MX SiP Service Call: 0x%x\n", smc_fid);

diff --git a/plat/imx/common/include/imx_sip_svc.h b/plat/imx/common/include/imx_sip_svc.h
index 3fa6b82c3c5ac39c8ab268e670b9556cf5db3dc2..c259d23ca6585672c83f639f05b0e57f31362041 100644 (file)
--- a/plat/imx/common/include/imx_sip_svc.h
+++ b/plat/imx/common/include/imx_sip_svc.h
@@ -21,6 +21,8 @@
 #define IMX_SIP_OTP_READ               0xC200000A
 #define IMX_SIP_OTP_WRITE              0xC200000B
 
+#define IMX_SIP_MISC_SET_TEMP          0xC200000C
+
 #if (defined(PLAT_IMX8QM) || defined(PLAT_IMX8QX))
 int imx_cpufreq_handler(uint32_t smc_fid, u_register_t x1,
                        u_register_t x2, u_register_t x3);
@@ -30,6 +32,9 @@ int imx_wakeup_src_handler(uint32_t smc_fid, u_register_t x1,
                           u_register_t x2, u_register_t x3);
 int imx_otp_handler(uint32_t smc_fid, void *handle,
                    u_register_t x1, u_register_t x2);
+int imx_misc_set_temp_handler(uint32_t smc_fid, u_register_t x1,
+                             u_register_t x2, u_register_t x3,
+                             u_register_t x4);
 #endif
 
 #endif /* __IMX_SIP_SVC_H__ */