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Intel MID platforms have few microcontrollers inside SoC, one of them is so called System Controller Unit (SCU). Here is the driver to communicate with microcontroller. Signed-off-by: Vincent Tinelli <vincent.tinelli@intel.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Simon Glass <sjg@chromium.org>
29 lines
723 B
C
29 lines
723 B
C
/*
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* Copyright (c) 2017 Intel Corporation
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _X86_ASM_SCU_IPC_H_
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#define _X86_ASM_SCU_IPC_H_
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/* IPC defines the following message types */
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#define IPCMSG_WARM_RESET 0xf0
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#define IPCMSG_COLD_RESET 0xf1
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#define IPCMSG_SOFT_RESET 0xf2
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#define IPCMSG_COLD_BOOT 0xf3
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#define IPCMSG_GET_FW_REVISION 0xf4
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#define IPCMSG_WATCHDOG_TIMER 0xf8 /* Set Kernel Watchdog Threshold */
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struct ipc_ifwi_version {
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u16 minor;
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u8 major;
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u8 hardware_id;
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u32 reserved[3];
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};
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/* Issue commands to the SCU with or without data */
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int scu_ipc_simple_command(u32 cmd, u32 sub);
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int scu_ipc_command(u32 cmd, u32 sub, u32 *in, int inlen, u32 *out, int outlen);
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#endif /* _X86_ASM_SCU_IPC_H_ */
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