Hi Peng, On 8. 01. 26 12:06, Peng Fan (OSS) wrote: > From: Ye Li <[email protected]> > > On GDET enabled part, need to call voltage change start and finish
Just a question, is this some special part or a regular i.MX93? How or where do you enable Glitch detection? Thanks, BR, Primoz > 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; > +} > -- Primoz Fiser phone: +386-41-390-545 email: [email protected] -- Norik systems d.o.o. Your embedded software partner Slovenia, EU phone: +386-41-540-545 email: [email protected]
