[U-Boot] [PATCH 4/8] misc: imx8: add sc_misc_get_temp

Peng Fan
2019-04-12T07:55:00Z

Add sc_misc_get_temp to support get temperature

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
arch/arm/include/asm/arch-imx8/sci/sci.h | 2 ++
arch/arm/include/asm/arch-imx8/sci/svc/misc/api.h | 1 +
drivers/misc/imx8/scu_api.c | 28 +++++++++++++++++++++++
3 files changed, 31 insertions(+)

diff --git a/arch/arm/include/asm/arch-imx8/sci/sci.h b/arch/arm/include/asm/arch-imx8/sci/sci.h
index d1621669e2..ccf45d71f7 100644
--- a/arch/arm/include/asm/arch-imx8/sci/sci.h
+++ b/arch/arm/include/asm/arch-imx8/sci/sci.h
@@ -76,6 +76,8 @@ void sc_misc_get_boot_dev(sc_ipc_t ipc, sc_rsrc_t *boot_dev);
void sc_misc_boot_status(sc_ipc_t ipc, sc_misc_boot_status_t status);
void sc_misc_build_info(sc_ipc_t ipc, u32 *build, u32 *commit);
int sc_misc_otp_fuse_read(sc_ipc_t ipc, u32 word, u32 *val);
+int sc_misc_get_temp(sc_ipc_t ipc, sc_rsrc_t resource, sc_misc_temp_t temp,
+ s16 *celsius, s8 *tenths);

/* RM API */
sc_bool_t sc_rm_is_memreg_owned(sc_ipc_t ipc, sc_rm_mr_t mr);
diff --git a/arch/arm/include/asm/arch-imx8/sci/svc/misc/api.h b/arch/arm/include/asm/arch-imx8/sci/svc/misc/api.h
index 5d17b553d7..3629eb68d7 100644
--- a/arch/arm/include/asm/arch-imx8/sci/svc/misc/api.h
+++ b/arch/arm/include/asm/arch-imx8/sci/svc/misc/api.h
@@ -26,5 +26,6 @@
#define SC_MISC_REL_CONTAINER 2U /* Release container */

typedef u8 sc_misc_boot_status_t;
+typedef u8 sc_misc_temp_t;

#endif /* SC_MISC_API_H */
diff --git a/drivers/misc/imx8/scu_api.c b/drivers/misc/imx8/scu_api.c
index d9c4d5d784..031bc0048b 100644
--- a/drivers/misc/imx8/scu_api.c
+++ b/drivers/misc/imx8/scu_api.c
@@ -273,6 +273,34 @@ int sc_misc_otp_fuse_read(sc_ipc_t ipc, u32 word, u32 *val)
return 0;
}

+int sc_misc_get_temp(sc_ipc_t ipc, sc_rsrc_t resource, sc_misc_temp_t temp,
+ s16 *celsius, s8 *tenths)
+{
+ struct udevice *dev = gd->arch.scu_dev;
+ int size = sizeof(struct sc_rpc_msg_s);
+ struct sc_rpc_msg_s msg;
+ int ret;
+
+ RPC_VER(&msg) = SC_RPC_VERSION;
+ RPC_SVC(&msg) = (u8)SC_RPC_SVC_MISC;
+ RPC_FUNC(&msg) = (u8)MISC_FUNC_GET_TEMP;
+ RPC_U16(&msg, 0U) = (u16)resource;
+ RPC_U8(&msg, 2U) = (u8)temp;
+ RPC_SIZE(&msg) = 2U;
+
+ ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
+ if (ret < 0)
+ return ret;
+
+ if (celsius)
+ *celsius = RPC_I16(&msg, 0U);
+
+ if (tenths)
+ *tenths = RPC_I8(&msg, 2U);
+
+ return 0;
+}
+
/* RM */
sc_bool_t sc_rm_is_memreg_owned(sc_ipc_t ipc, sc_rm_mr_t mr)
{
--
2.16.4