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MIPS: copy pic32.h header file from asm/mach-pic32/ to include/platform-data/

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There are currently some pic32 MIPS drivers that are in tree, and are
only configured to be compiled on the pic32 platform. There's a risk of
breaking some of these drivers when migrating drivers away from legacy
APIs. It happened to me with a pic32 clk driver.

Let's go ahead and copy the MIPS pic32.h header to
include/linux/platform_data/, and make a minor update to allow compiling
this on other architectures. This will make it easier, and cleaner to
enable COMPILE_TEST for some of these pic32 drivers.

The asm variant of the header file will be dropped once all drivers have
been updated.

Link: https://lore.kernel.org/linux-clk/CABx5tq+eOocJ41X-GSgkGy6S+s+Am1yCS099wqP695NtwALTmg@mail.gmail.com/T/
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Brian Masney 2026-01-12 17:47:58 -05:00 • committed by Thomas Bogendoerfer
parent 3391d097cd
commit d095d2dbcc
1 changed files with 39 additions and 0 deletions
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39
include/linux/platform_data/pic32.h Normal file
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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Joshua Henderson <joshua.henderson@microchip.com>
* Copyright (C) 2015 Microchip Technology Inc. All rights reserved.
*/
#ifndef __LINUX_PLATFORM_DATA_PIC32_H
#define __LINUX_PLATFORM_DATA_PIC32_H
#include <linux/types.h>
/*
* PIC32 register offsets for SET/CLR/INV where supported.
*/
#define PIC32_CLR(_reg) ((_reg) + 0x04)
#define PIC32_SET(_reg) ((_reg) + 0x08)
#define PIC32_INV(_reg) ((_reg) + 0x0C)
/*
* PIC32 Base Register Offsets
*/
#define PIC32_BASE_CONFIG 0x1f800000
#define PIC32_BASE_OSC 0x1f801200
#define PIC32_BASE_RESET 0x1f801240
#define PIC32_BASE_PPS 0x1f801400
#define PIC32_BASE_UART 0x1f822000
#define PIC32_BASE_PORT 0x1f860000
#define PIC32_BASE_DEVCFG2 0x1fc4ff44
#if defined(CONFIG_MACH_PIC32)
/* Register unlock sequence required for some register access. */
void pic32_syskey_unlock_debug(const char *fn, const ulong ln);
#define pic32_syskey_unlock() \
pic32_syskey_unlock_debug(__func__, __LINE__)
#else
/* COMPILE_TEST on all other architectures */
#define pic32_syskey_unlock()
#endif
#endif /* __LINUX_PLATFORM_DATA_PIC32_H */