diff options
| author | Brian Masney <bmasney@redhat.com> | 2026-01-12 17:47:58 -0500 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2026-01-30 15:29:07 +0100 |
| commit | d095d2dbcc8df60ede1674e28ce0f0a478d37535 (patch) | |
| tree | 9731e81be966439d7138d2ef24e2fdf08b8b9caa /include | |
| parent | 3391d097cda8f803c062fb6326f0736a3379e2f9 (diff) | |
MIPS: copy pic32.h header file from asm/mach-pic32/ to include/platform-data/
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/platform_data/pic32.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/linux/platform_data/pic32.h b/include/linux/platform_data/pic32.h new file mode 100644 index 000000000000..f0b395fdb784 --- /dev/null +++ b/include/linux/platform_data/pic32.h @@ -0,0 +1,39 @@ +/* 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 */ |