[Patch V3 23/44] drivers: misc: imx8ulp: Add S400 API for image authentication

Peng Fan (OSS)
2021-07-19T07:18:15Z

From: Ye Li <ye.li@nxp.com>

Add S400 API for image authentication

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
arch/arm/include/asm/arch-imx8ulp/s400_api.h | 8 +-
drivers/misc/imx8ulp/s400_api.c | 121 ++++++++++++++++++-
2 files changed, 127 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/arch-imx8ulp/s400_api.h b/arch/arm/include/asm/arch-imx8ulp/s400_api.h
index 3ba6b525c5..30dab8be24 100644
--- a/arch/arm/include/asm/arch-imx8ulp/s400_api.h
+++ b/arch/arm/include/asm/arch-imx8ulp/s400_api.h
@@ -15,6 +15,7 @@
#define AHAB_VERIFY_IMG_CID 0x88
#define AHAB_RELEASE_CTNR_CID 0x89
#define AHAB_RELEASE_RDC_REQ_CID 0xC4
+#define AHAB_FWD_LIFECYCLE_UP_REQ_CID 0x95

#define S400_MAX_MSG 8U

@@ -26,5 +27,10 @@ struct imx8ulp_s400_msg {
u32 data[(S400_MAX_MSG - 1U)];
};

-int ahab_release_rdc(u8 core_id);
+int ahab_release_rdc(u8 core_id, u32 *response);
+int ahab_auth_oem_ctnr(ulong ctnr_addr, u32 *response);
+int ahab_release_container(u32 *response);
+int ahab_verify_image(u32 img_id, u32 *response);
+int ahab_forward_lifecycle(u16 life_cycle, u32 *response);
+
#endif
diff --git a/drivers/misc/imx8ulp/s400_api.c b/drivers/misc/imx8ulp/s400_api.c
index 82fd3117a4..4047d6efee 100644
--- a/drivers/misc/imx8ulp/s400_api.c
+++ b/drivers/misc/imx8ulp/s400_api.c
@@ -14,7 +14,7 @@

DECLARE_GLOBAL_DATA_PTR;

-int ahab_release_rdc(u8 core_id)
+int ahab_release_rdc(u8 core_id, u32 *response)
{
struct udevice *dev = gd->arch.s400_dev;
int size = sizeof(struct imx8ulp_s400_msg);
@@ -37,5 +37,124 @@ int ahab_release_rdc(u8 core_id)
printf("Error: %s: ret %d, core id %u, response 0x%x\n",
__func__, ret, core_id, msg.data[0]);

+ if (response)
+ *response = msg.data[0];
+
+ return ret;
+}
+
+int ahab_auth_oem_ctnr(ulong ctnr_addr, u32 *response)
+{
+ struct udevice *dev = gd->arch.s400_dev;
+ int size = sizeof(struct imx8ulp_s400_msg);
+ struct imx8ulp_s400_msg msg;
+ int ret;
+
+ if (!dev) {
+ printf("s400 dev is not initialized\n");
+ return -ENODEV;
+ }
+
+ msg.version = AHAB_VERSION;
+ msg.tag = AHAB_CMD_TAG;
+ msg.size = 3;
+ msg.command = AHAB_AUTH_OEM_CTNR_CID;
+ msg.data[0] = upper_32_bits(ctnr_addr);
+ msg.data[1] = lower_32_bits(ctnr_addr);
+
+ ret = misc_call(dev, false, &msg, size, &msg, size);
+ if (ret)
+ printf("Error: %s: ret %d, cntr_addr 0x%lx, response 0x%x\n",
+ __func__, ret, ctnr_addr, msg.data[0]);
+
+ if (response)
+ *response = msg.data[0];
+
+ return ret;
+}
+
+int ahab_release_container(u32 *response)
+{
+ struct udevice *dev = gd->arch.s400_dev;
+ int size = sizeof(struct imx8ulp_s400_msg);
+ struct imx8ulp_s400_msg msg;
+ int ret;
+
+ if (!dev) {
+ printf("s400 dev is not initialized\n");
+ return -ENODEV;
+ }
+
+ msg.version = AHAB_VERSION;
+ msg.tag = AHAB_CMD_TAG;
+ msg.size = 1;
+ msg.command = AHAB_RELEASE_CTNR_CID;
+
+ 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]);
+
+ if (response)
+ *response = msg.data[0];
+
+ return ret;
+}
+
+int ahab_verify_image(u32 img_id, u32 *response)
+{
+ struct udevice *dev = gd->arch.s400_dev;
+ int size = sizeof(struct imx8ulp_s400_msg);
+ struct imx8ulp_s400_msg msg;
+ int ret;
+
+ if (!dev) {
+ printf("s400 dev is not initialized\n");
+ return -ENODEV;
+ }
+
+ msg.version = AHAB_VERSION;
+ msg.tag = AHAB_CMD_TAG;
+ msg.size = 2;
+ msg.command = AHAB_VERIFY_IMG_CID;
+ msg.data[0] = 1 << img_id;
+
+ ret = misc_call(dev, false, &msg, size, &msg, size);
+ if (ret)
+ printf("Error: %s: ret %d, img_id %u, response 0x%x\n",
+ __func__, ret, img_id, msg.data[0]);
+
+ if (response)
+ *response = msg.data[0];
+
+ return ret;
+}
+
+int ahab_forward_lifecycle(u16 life_cycle, u32 *response)
+{
+ struct udevice *dev = gd->arch.s400_dev;
+ int size = sizeof(struct imx8ulp_s400_msg);
+ struct imx8ulp_s400_msg msg;
+ int ret;
+
+ if (!dev) {
+ printf("s400 dev is not initialized\n");
+ return -ENODEV;
+ }
+
+ msg.version = AHAB_VERSION;
+ msg.tag = AHAB_CMD_TAG;
+ msg.size = 2;
+ msg.command = AHAB_FWD_LIFECYCLE_UP_REQ_CID;
+ msg.data[0] = life_cycle;
+
+ ret = misc_call(dev, false, &msg, size, &msg, size);
+ if (ret)
+ printf("Error: %s: ret %d, life_cycle 0x%x, response 0x%x\n",
+ __func__, ret, life_cycle, msg.data[0]);
+
+ if (response)
+ *response = msg.data[0];
+
return ret;
}
--
2.30.0