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imx8: scu api: Add support for SECO manufacturing protection APIs

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SECO provides APIs to support CAAM manufacturing protection:

- sc_seco_get_mp_key()
- sc_seco_get_mp_sign()
- sc_seco_update_mpmr()

Add SCFW APIs support.

Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Breno Lima <breno.lima@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Breno Lima 2019-10-16 18:10:54 -03:00 committed by Stefano Babic
parent ba13973479
commit f959594db2
2 changed files with 84 additions and 0 deletions
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4
arch/arm/include/asm/arch-imx8/sci/sci.h
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@ -122,5 +122,9 @@ void sc_seco_build_info(sc_ipc_t ipc, u32 *version, u32 *commit);
int sc_seco_get_event(sc_ipc_t ipc, u8 idx, u32 *event);
int sc_seco_gen_key_blob(sc_ipc_t ipc, u32 id, sc_faddr_t load_addr,
sc_faddr_t export_addr, u16 max_size);
int sc_seco_get_mp_key(sc_ipc_t ipc, sc_faddr_t dst_addr, u16 dst_size);
int sc_seco_update_mpmr(sc_ipc_t ipc, sc_faddr_t addr, u8 size, u8 lock);
int sc_seco_get_mp_sign(sc_ipc_t ipc, sc_faddr_t msg_addr,
u16 msg_size, sc_faddr_t dst_addr, u16 dst_size);
#endif

80
drivers/misc/imx8/scu_api.c
View File

@ -948,3 +948,83 @@ int sc_seco_gen_key_blob(sc_ipc_t ipc, u32 id, sc_faddr_t load_addr,
return ret;
}
int sc_seco_get_mp_key(sc_ipc_t ipc, sc_faddr_t dst_addr,
u16 dst_size)
{
struct udevice *dev = gd->arch.scu_dev;
struct sc_rpc_msg_s msg;
int size = sizeof(struct sc_rpc_msg_s);
int ret;
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SIZE(&msg) = 4U;
RPC_SVC(&msg) = (u8)(SC_RPC_SVC_SECO);
RPC_FUNC(&msg) = (u8)(SECO_FUNC_GET_MP_KEY);
RPC_U32(&msg, 0U) = (u32)(dst_addr >> 32ULL);
RPC_U32(&msg, 4U) = (u32)(dst_addr);
RPC_U16(&msg, 8U) = (u16)(dst_size);
ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
if (ret)
printf("%s, dst_addr:0x%llx, res:%d\n",
__func__, dst_addr, RPC_R8(&msg));
return ret;
}
int sc_seco_update_mpmr(sc_ipc_t ipc, sc_faddr_t addr, uint8_t size_m,
uint8_t lock)
{
struct udevice *dev = gd->arch.scu_dev;
struct sc_rpc_msg_s msg;
int size = sizeof(struct sc_rpc_msg_s);
int ret;
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SIZE(&msg) = 4U;
RPC_SVC(&msg) = (u8)(SC_RPC_SVC_SECO);
RPC_FUNC(&msg) = (u8)(SECO_FUNC_UPDATE_MPMR);
RPC_U32(&msg, 0U) = (u32)(addr >> 32ULL);
RPC_U32(&msg, 4U) = (u32)(addr);
RPC_U8(&msg, 8U) = (u8)(size_m);
RPC_U8(&msg, 9U) = (u8)(lock);
ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
if (ret)
printf("%s, addr:0x%llx, size_m:%x, lock:0x%x, res:%d\n",
__func__, addr, size_m, lock, RPC_R8(&msg));
return ret;
}
int sc_seco_get_mp_sign(sc_ipc_t ipc, sc_faddr_t msg_addr,
u16 msg_size, sc_faddr_t dst_addr,
u16 dst_size)
{
struct udevice *dev = gd->arch.scu_dev;
struct sc_rpc_msg_s msg;
int size = sizeof(struct sc_rpc_msg_s);
int ret;
RPC_VER(&msg) = SC_RPC_VERSION;
RPC_SIZE(&msg) = 6U;
RPC_SVC(&msg) = (u8)(SC_RPC_SVC_SECO);
RPC_FUNC(&msg) = (u8)(SECO_FUNC_GET_MP_SIGN);
RPC_U32(&msg, 0U) = (u32)(msg_addr >> 32ULL);
RPC_U32(&msg, 4U) = (u32)(msg_addr);
RPC_U32(&msg, 8U) = (u32)(dst_addr >> 32ULL);
RPC_U32(&msg, 12U) = (u32)(dst_addr);
RPC_U16(&msg, 16U) = (u16)(msg_size);
RPC_U16(&msg, 18U) = (u16)(dst_size);
ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size);
if (ret)
printf("%s, msg_addr:0x%llx, msg_size:%x, dst_addr:0x%llx,"
"dst_size:%x, res:%d\n", __func__, msg_addr, msg_size,
dst_addr, dst_size, RPC_R8(&msg));
return ret;
}