diff options
| author | Silvano di Ninno <silvano.dininno@nxp.com> | 2019-12-02 19:21:01 +0100 |
|---|---|---|
| committer | Franck LENORMAND <franck.lenormand@nxp.com> | 2020-02-21 14:44:02 +0100 |
| commit | c334337d16879184e29c331767a94b3744c2bacd (patch) | |
| tree | 8832ecda414ebf87f76d1e3c5a79328a6616966a /include/linux/firmware | |
| parent | 73c8bbb404bd2873bd9d8d59cd1666f975c335b8 (diff) | |
LF-824: fw: imx: seco_mu: Add driver for SECO
This patch adds the driver to interact with the different
APIs exposed by the SECO using a shared Messaging Unit.
The driver exposes some char devices in user space allowing
a user to send message to the SECO and read its response.
The driver uses the mailbox framework instead of directly
configuring the MU.
Signed-off-by: Stephane Dion <stephane.dion_1@nxp.com>
Signed-off-by: Silvano di Ninno <silvano.dininno@nxp.com>
Signed-off-by: Franck LENORMAND <franck.lenormand@nxp.com>
(cherry picked from commit 4985109d60164c842ee5d189621455db349b5212)
(cherry picked from commit eb721810fdc309b6a32a7a64c7686eaa6052cdc7)
(cherry picked from commit 4956bbf43349ab40a6a60765752a904d11bfcd18)
Diffstat (limited to 'include/linux/firmware')
| -rw-r--r-- | include/linux/firmware/imx/seco_mu_ioctl.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/include/linux/firmware/imx/seco_mu_ioctl.h b/include/linux/firmware/imx/seco_mu_ioctl.h new file mode 100644 index 000000000000..bd8402b473a4 --- /dev/null +++ b/include/linux/firmware/imx/seco_mu_ioctl.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause*/ +/* + * Copyright 2019-2020 NXP + */ + +#ifndef SECO_MU_IOCTL_H +#define SECO_MU_IOCTL_H + +/* IOCTL definitions. */ +struct seco_mu_ioctl_setup_iobuf { + u8 *user_buf; + u32 length; + u32 flags; + u64 seco_addr; +}; + +struct seco_mu_ioctl_shared_mem_cfg { + u32 base_offset; + u32 size; +}; + +struct seco_mu_ioctl_get_mu_info { + u8 seco_mu_idx; + u8 interrupt_idx; + u8 tz; + u8 did; +}; + +struct seco_mu_ioctl_signed_message { + u8 *message; + u32 msg_size; + u32 error_code; +}; + +#define SECO_MU_IO_FLAGS_IS_INPUT (0x01u) +#define SECO_MU_IO_FLAGS_USE_SEC_MEM (0x02u) +#define SECO_MU_IO_FLAGS_USE_SHORT_ADDR (0x04u) + +#define SECO_MU_IOCTL 0x0A /* like MISC_MAJOR. */ +#define SECO_MU_IOCTL_ENABLE_CMD_RCV _IO(SECO_MU_IOCTL, 0x01) +#define SECO_MU_IOCTL_SHARED_BUF_CFG _IOW(SECO_MU_IOCTL, 0x02, \ + struct seco_mu_ioctl_shared_mem_cfg) +#define SECO_MU_IOCTL_SETUP_IOBUF _IOWR(SECO_MU_IOCTL, 0x03, \ + struct seco_mu_ioctl_setup_iobuf) +#define SECO_MU_IOCTL_GET_MU_INFO _IOR(SECO_MU_IOCTL, 0x04, \ + struct seco_mu_ioctl_get_mu_info) +#define SECO_MU_IOCTL_SIGNED_MESSAGE _IOWR(SECO_MU_IOCTL, 0x05, \ + struct seco_mu_ioctl_signed_message) + +#endif |