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[DM/FEATURE] Support MFD syscon

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MFD (Multifunction device) with System Controller Register Read/Write.

Signed-off-by: GuEe-GUI <2991707448@qq.com>
This commit is contained in:
GuEe-GUI
2024-11-20 15:53:23 +08:00
committed by Rbb666
parent f5aca55a26
commit 10cac76d3b
6 changed files with 311 additions and 0 deletions
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components/drivers/include/drivers/syscon.h
Executable
+35
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@@ -0,0 +1,35 @@
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-25 GuEe-GUI the first version
*/
#ifndef __SYSCON_H__
#define __SYSCON_H__
#include <drivers/ofw.h>
struct rt_syscon
{
rt_list_t list;
struct rt_ofw_node *np;
void *iomem_base;
rt_size_t iomem_size;
struct rt_spinlock rw_lock;
};
rt_err_t rt_syscon_read(struct rt_syscon *syscon, rt_off_t offset, rt_uint32_t *out_val);
rt_err_t rt_syscon_write(struct rt_syscon *syscon, rt_off_t offset, rt_uint32_t val);
rt_err_t rt_syscon_update_bits(struct rt_syscon *syscon, rt_off_t offset, rt_uint32_t mask, rt_uint32_t val);
struct rt_syscon *rt_syscon_find_by_ofw_node(struct rt_ofw_node *np);
struct rt_syscon *rt_syscon_find_by_ofw_compatible(const char *compatible);
struct rt_syscon *rt_syscon_find_by_ofw_phandle(struct rt_ofw_node *np, const char *propname);
#endif /* __SYSCON_H__ */
components/drivers/include/rtdevice.h
+4
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@@ -56,6 +56,10 @@ extern "C" {
#ifdef RT_USING_PIC
#include "drivers/pic.h"
#endif
#ifdef RT_MFD_SYSCON
#include "drivers/syscon.h"
#endif
#endif /* RT_USING_DM */
#ifdef RT_USING_RTC