From: Ye Li <[email protected]> On GDET enabled part, need to call voltage change start and finish APIs when adjust the voltage more than 100mv. Otherwise GDET will be triggered and system is reset
Reviewed-by: Peng Fan <[email protected]> Signed-off-by: Ye Li <[email protected]> Signed-off-by: Peng Fan <[email protected]> --- arch/arm/include/asm/mach-imx/ele_api.h | 4 +++ drivers/misc/imx_ele/ele_api.c | 50 +++++++++++++++++++++++++++++++++ 2 files changed, 54 insertions(+) diff --git a/arch/arm/include/asm/mach-imx/ele_api.h b/arch/arm/include/asm/mach-imx/ele_api.h index 64b243dcaaa..4e1afc42bd8 100644 --- a/arch/arm/include/asm/mach-imx/ele_api.h +++ b/arch/arm/include/asm/mach-imx/ele_api.h @@ -14,6 +14,8 @@ #define ELE_PING_REQ (0x01) #define ELE_FW_AUTH_REQ (0x02) #define ELE_RESTART_RST_TIMER_REQ (0x04) +#define ELE_VOLT_CHANGE_START_REQ (0x12) +#define ELE_VOLT_CHANGE_FINISH_REQ (0x13) #define ELE_DUMP_DEBUG_BUFFER_REQ (0x21) #define ELE_OEM_CNTN_AUTH_REQ (0x87) #define ELE_VERIFY_IMAGE_REQ (0x88) @@ -160,4 +162,6 @@ int ele_return_lifecycle_update(ulong signed_msg_blk, u32 *response); int ele_start_rng(void); int ele_write_shadow_fuse(u32 fuse_id, u32 fuse_val, u32 *response); int ele_read_shadow_fuse(u32 fuse_id, u32 *fuse_val, u32 *response); +int ele_volt_change_start_req(void); +int ele_volt_change_finish_req(void); #endif diff --git a/drivers/misc/imx_ele/ele_api.c b/drivers/misc/imx_ele/ele_api.c index 661f70cf870..e7aee0fcef1 100644 --- a/drivers/misc/imx_ele/ele_api.c +++ b/drivers/misc/imx_ele/ele_api.c @@ -794,3 +794,53 @@ int ele_generate_dek_blob(u32 key_id, u32 src_paddr, u32 dst_paddr, u32 max_outp return ret; } + +int ele_volt_change_start_req(void) +{ + struct udevice *dev = gd->arch.ele_dev; + int size = sizeof(struct ele_msg); + struct ele_msg msg = {}; + int ret; + + if (!dev) { + printf("ele dev is not initialized\n"); + return -ENODEV; + } + + msg.version = ELE_VERSION; + msg.tag = ELE_CMD_TAG; + msg.size = 1; + msg.command = ELE_VOLT_CHANGE_START_REQ; + + ret = misc_call(dev, false, &msg, size, &msg, size); + if (ret) + printf("Error: %s: ret %d, response 0x%x\n", + __func__, ret, msg.data[0]); + + return ret; +} + +int ele_volt_change_finish_req(void) +{ + struct udevice *dev = gd->arch.ele_dev; + int size = sizeof(struct ele_msg); + struct ele_msg msg = {}; + int ret; + + if (!dev) { + printf("ele dev is not initialized\n"); + return -ENODEV; + } + + msg.version = ELE_VERSION; + msg.tag = ELE_CMD_TAG; + msg.size = 1; + msg.command = ELE_VOLT_CHANGE_FINISH_REQ; + + ret = misc_call(dev, false, &msg, size, &msg, size); + if (ret) + printf("Error: %s: ret %d, response 0x%x\n", + __func__, ret, msg.data[0]); + + return ret; +} -- 2.51.0
