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author | Franck LENORMAND <franck.lenormand@nxp.com> | 2019-10-09 10:27:43 +0200 |
---|---|---|
committer | Ye Li <ye.li@nxp.com> | 2020-04-26 23:36:34 -0700 |
commit | 8f2a1e1901091c958baa15c1629742940991b035 (patch) | |
tree | 9dda6d0ad53f40492611a7546e081317d934d96d /drivers/misc | |
parent | 4e6ffa43820fab8a626b5b16cc700f9b945bcf43 (diff) |
SSI-87: imx8: Configure SNVS
Add a module to configure the tamper and secure violation of
the SNVS using the SCU API.
The module also adds some commands:
- snvs_cfg: Configure the SNVS HP and LP registers
- snvs_dgo_cfg: Configure the SNVS DGO bloc if present (8QXP)
- tamper_pin_cfg: Change the configuration of the tamper pins
- snvs_clear_status: Allow to write to LPSR and LPTDSR to clear status bits
Signed-off-by: Franck LENORMAND <franck.lenormand@nxp.com>
(cherry picked from commit 75aa7f2254f0883aa14568ac32702b1ca15367e4)
Signed-off-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit 2f3804bdfe29a3c134a1753d6fa92881ea3e2b30)
Diffstat (limited to 'drivers/misc')
-rw-r--r-- | drivers/misc/imx8/scu_api.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/misc/imx8/scu_api.c b/drivers/misc/imx8/scu_api.c index 972b132652d..577799b0a41 100644 --- a/drivers/misc/imx8/scu_api.c +++ b/drivers/misc/imx8/scu_api.c @@ -222,6 +222,36 @@ int sc_pad_set(sc_ipc_t ipc, sc_pad_t pad, u32 val) return ret; } +int sc_pad_get(sc_ipc_t ipc, sc_pad_t pad, uint32_t *val) +{ + struct udevice *dev = gd->arch.scu_dev; + int size = sizeof(struct sc_rpc_msg_s); + struct sc_rpc_msg_s msg; + int ret; + + if (!dev) + hang(); + + RPC_VER(&msg) = SC_RPC_VERSION; + RPC_SIZE(&msg) = 2U; + RPC_SVC(&msg) = (u8)(SC_RPC_SVC_PAD); + RPC_FUNC(&msg) = (u8)(PAD_FUNC_GET); + + RPC_U16(&msg, 0U) = (u16)(pad); + + ret = misc_call(dev, SC_FALSE, &msg, size, &msg, size); + if (ret) + printf("%s: pad:%d: res:%d\n", + __func__, pad, RPC_R8(&msg)); + + if (val != NULL) + { + *val = (uint32_t) RPC_U32(&msg, 0U); + } + + return ret; +} + /* MISC */ int sc_misc_set_control(sc_ipc_t ipc, sc_rsrc_t resource, sc_ctrl_t ctrl, u32 val) @@ -1103,3 +1133,40 @@ int sc_seco_get_mp_sign(sc_ipc_t ipc, sc_faddr_t msg_addr, return ret; } + +int sc_seco_secvio_config(sc_ipc_t ipc, u8 id, u8 access, + u32 *data0, u32 *data1, u32 *data2, u32 *data3, + u32 *data4, u8 size) +{ + struct udevice *dev = gd->arch.scu_dev; + struct sc_rpc_msg_s msg; + int msg_size = sizeof(struct sc_rpc_msg_s); + int ret; + + RPC_VER(&msg) = SC_RPC_VERSION; + RPC_SIZE(&msg) = 7U; + RPC_SVC(&msg) = (u8)(SC_RPC_SVC_SECO); + RPC_FUNC(&msg) = (u8)(SECO_FUNC_SECVIO_CONFIG); + + RPC_U32(&msg, 0U) = (u32)(*data0); + RPC_U32(&msg, 4U) = (u32)(*data1); + RPC_U32(&msg, 8U) = (u32)(*data2); + RPC_U32(&msg, 12U) = (u32)(*data3); + RPC_U32(&msg, 16U) = (u32)(*data4); + RPC_U8(&msg, 20U) = (u8)(id); + RPC_U8(&msg, 21U) = (u8)(access); + RPC_U8(&msg, 22U) = (u8)(size); + + ret = misc_call(dev, SC_FALSE, &msg, msg_size, &msg, msg_size); + if (ret) + printf("%s, id:0x%x, access:%x, res:%d\n", + __func__, id, access, RPC_R8(&msg)); + + *data0 = (u32) RPC_U32(&msg, 0U); + *data1 = (u32) RPC_U32(&msg, 4U); + *data2 = (u32) RPC_U32(&msg, 8U); + *data3 = (u32) RPC_U32(&msg, 12U); + *data4 = (u32) RPC_U32(&msg, 16U); + + return ret; +} |