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器件型号：AM623 工具与软件：
您好、TI 专家！
我有 AM6234的开发环境、其中包含我们自己的评估板。
软件 PROCESSOR-SDK-LINUX-RT 版本是 SDK-AM62X-10.01.10.04。
我可以在 optee 下正常地读取 OTP 电子保险丝、如下图：所示
我在 optee 器件上写入 OTP efuse、并且遇到以下错误：
我正在使用 SDK 版本 OTP-AM62X-08.06.00.42、它可以在 optee 下正常地读取和写入 PROCESSOR-SDK-LINUX-RT 电子保险丝
这是对应于 此 PROCESSOR-SDK-LINUX-RT：的 SDK-AM62X-10.01.10.04的配置文件
// ti-processor-sdk-linux-rt-am62xx-evm-10.01.10.04\board-support\ti-u-boot-2024.04+git\board\ti\am62x\sec-cfg.yaml
otp_config:
subhdr:
magic: 0x4081
size: 69
otp_entry:
- # 1
host_id: 128
host_perms: 2
- # 2
host_id: 128
host_perms: 2
- # 3
host_id: 128
host_perms: 2
- # 4
host_id: 128
host_perms: 2
- # 5
host_id: 128
host_perms: 2
- # 6
host_id: 128
host_perms: 2
- # 7
host_id: 128
host_perms: 2
- # 8
host_id: 128
host_perms: 2
- # 9
host_id: 128
host_perms: 2
- # 10
host_id: 128
host_perms: 2
- # 11
host_id: 128
host_perms: 2
- # 12
host_id: 128
host_perms: 2
- # 13
host_id: 128
host_perms: 2
- # 14
host_id: 128
host_perms: 2
- # 15
host_id: 128
host_perms: 2
- # 16
host_id: 128
host_perms: 2
- # 17
host_id: 128
host_perms: 2
- # 18
host_id: 128
host_perms: 2
- # 19
host_id: 128
host_perms: 2
- # 20
host_id: 128
host_perms: 2
- # 21
host_id: 128
host_perms: 2
- # 22
host_id: 128
host_perms: 2
- # 23
host_id: 128
host_perms: 2
- # 24
host_id: 128
host_perms: 2
- # 25
host_id: 128
host_perms: 2
- # 26
host_id: 128
host_perms: 2
- # 27
host_id: 128
host_perms: 2
- # 28
host_id: 128
host_perms: 2
- # 29
host_id: 128
host_perms: 2
- # 30
host_id: 128
host_perms: 2
- # 31
host_id: 128
host_perms: 2
- # 32
host_id: 128
host_perms: 2
write_host_id: 11
对应于 SDK 版本 SDK-AM62X-08.06.00.42 PROCESSOR-SDK-LINUX-RT 的配置文件如下：
// ti-processor-sdk-linux-rt-am62xx-evm-08.06.00.42\board-support\k3-image-gen-2022.01\soc\am62x\evm\sec-cfg.c
/* OTP access configuration */
.otp_config = {
.subhdr = {
.magic = BOARDCFG_OTP_CFG_MAGIC_NUM,
.size = sizeof(struct boardcfg_extended_otp),
},
/* Host ID 0 is DMSC. This means no host has write access to OTP array */
.write_host_id = HOST_ID_A53_1,
/* This is an array with 32 entries */
.otp_entry = {
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
},
},
相应的调试源代码如下：
// ti-processor-sdk-linux-rt-am62xx-evm-10.01.10.04\board-support\optee-os-4.4.0+git\core\arch\arm\plat-k3\drivers\ti_sci.c
/**
* ti_sci_get_response() - Receive response from mailbox channel
*
* @xfer: Transfer to initiate and wait for response
*
* Return: 0 if all goes well, else appropriate error message
*/
static inline int ti_sci_get_response(struct ti_sci_xfer *xfer)
{
struct k3_sec_proxy_msg *msg = &xfer->rx_message;
struct ti_sci_msg_hdr *hdr = NULL;
unsigned int retry = 5;
int ret = 0;
for (; retry > 0; retry--) {
/* Receive the response */
ret = k3_sec_proxy_recv(msg);
if (ret) {
EMSG("Message receive failed (%d)", ret);
return ret;
}
/* msg is updated by Secure Proxy driver */
hdr = (struct ti_sci_msg_hdr *)msg->buf;
/* Sanity check for message response */
if (hdr->seq == message_sequence)
break;
IMSG("Message with sequence ID %u is not expected", hdr->seq);
}
if (!retry) {
EMSG("Timed out waiting for message");
return TEE_ERROR_BUSY;
}
DMSG("Message Header Details:");
DMSG(" Type: 0x%x", hdr->type);
DMSG(" Host: %d", hdr->host);
DMSG(" Sequence: %u", hdr->seq);
DMSG(" Flags: 0x%x", hdr->flags);
DMSG(" Expected Sequence: %u", message_sequence);
if (!(hdr->flags & TI_SCI_FLAG_RESP_GENERIC_ACK)) {
DMSG("Message not acknowledged");
return TEE_ERROR_ACCESS_DENIED;
}
return 0;
}
请问如何解决这个问题？
此致、
Li
