diff options
| author | Conor Dooley <conor.dooley@microchip.com> | 2021-06-24 16:00:55 +0100 |
|---|---|---|
| committer | Jassi Brar <jaswinder.singh@linaro.org> | 2021-06-26 12:06:48 -0500 |
| commit | 83d7b1560810e038e1d07ca6bff41edaeae29725 (patch) | |
| tree | 8da3ff51a723ba80d640986e96ecbd8e55153266 /include/soc | |
| parent | ed9543d6f2c444457b1936026f67cb8d3bf70bc7 (diff) | |
| download | lwn-83d7b1560810e038e1d07ca6bff41edaeae29725.tar.gz lwn-83d7b1560810e038e1d07ca6bff41edaeae29725.zip | |
mbox: add polarfire soc system controller mailbox
This driver adds support for the single mailbox channel of the MSS
system controller on the Microchip PolarFire SoC.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Diffstat (limited to 'include/soc')
| -rw-r--r-- | include/soc/microchip/mpfs.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/soc/microchip/mpfs.h b/include/soc/microchip/mpfs.h new file mode 100644 index 000000000000..2b64c95f3be5 --- /dev/null +++ b/include/soc/microchip/mpfs.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * + * Microchip PolarFire SoC (MPFS) + * + * Copyright (c) 2020 Microchip Corporation. All rights reserved. + * + * Author: Conor Dooley <conor.dooley@microchip.com> + * + */ + +#ifndef __SOC_MPFS_H__ +#define __SOC_MPFS_H__ + +#include <linux/types.h> +#include <linux/of_device.h> + +struct mpfs_sys_controller; + +struct mpfs_mss_msg { + u8 cmd_opcode; + u16 cmd_data_size; + struct mpfs_mss_response *response; + u8 *cmd_data; + u16 mbox_offset; + u16 resp_offset; +}; + +struct mpfs_mss_response { + u32 resp_status; + u32 *resp_msg; + u16 resp_size; +}; + +#if IS_ENABLED(CONFIG_POLARFIRE_SOC_SYS_CTRL) + +int mpfs_blocking_transaction(struct mpfs_sys_controller *mpfs_client, void *msg); + +struct mpfs_sys_controller *mpfs_sys_controller_get(struct device_node *mailbox_node); + +#endif /* if IS_ENABLED(CONFIG_POLARFIRE_SOC_SYS_CTRL) */ + +#endif /* __SOC_MPFS_H__ */ |