MIPS: loongson32: Remove dma.h and nand.h

Since commit 7b3415f581c7 ("MIPS: Loongson32: Remove
unused platform devices"), struct plat_ls1x_dma and plat_ls1x_nand
are unused. Then, dma.h and nand.h are useless.
Therefore, remove these useless header files.

Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

MIPS: loongson32: Update the clock initialization

The Loongson-1 clock driver is under re-implementation
to add DT support. As a result, ls1x_clk_init() will be dropped soon.
Therefore, call of_clk_init() for clock initialization instead.

Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Link: https://lore.kernel.org/r/20230321111817.71756-5-keguang.zhang@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

MIPS: loongson32: Drop obsolete cpufreq platform device

The obsolete cpufreq driver was removed, drop the platform device
and data accordingly.

Link: https://lore.kernel.org/all/20230112135342.3927338-1-keguang.zhang@gmail.com
Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

Based on 1 normalized pattern(s):

this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

MIPS: Loongson32: Remove unused platform devices

platform.c contains several unused platform device with no
drivers submited.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: keguang.zhang@gmail.com

MIPS: Loongson1: Add watchdog support for Loongson1 board

The patch adds watchdog support for Loongson1 board.

Signed-off-by: Yang Ling <gnaygnil@gmail.com>
Cc: keguang.zhang@gmail.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14644/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

MIPS: Add RTC support for Loongson1C board

The patch adds RTC support for Loongson1C board, and enable the external
crystal when the RTC is first powered up.

Signed-off-by: Yang Ling <gnaygnil@gmail.com>
Cc: keguang.zhang@gmail.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14214/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

MIPS: Loongson1B: Some updates/fixes for LS1B

- Add DMA device
- Add NAND device
- Add GPIO device
- Add LED device
- Update the defconfig and rename it to loongson1b_defconfig
- Fix ioremap size
- Other minor fixes

Signed-off-by: Kelvin Cheung <keguang.zhang@gmail.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-clk@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: dmaengine@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Cc: linux-mtd@lists.infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/13033/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

MIPS: Loongson: Naming style cleanup and rework

Currently, code of Loongson-2/3 is under loongson directory and code of
Loongson-1 is under loongson1 directory. Besides, there are Kconfig
options such as MACH_LOONGSON and MACH_LOONGSON1. This naming style is
very ugly and confusing. Since Loongson-2/3 are both 64-bit general-
purpose CPU while Loongson-1 is 32-bit SoC, we rename both file names
and Kconfig symbols from loongson/loongson1 to loongson64/loongson32.

[ralf@linux-mips.org: Resolve a number of simple conflicts.]

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Cc: Kelvin Cheung <keguang.zhang@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/9790/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>