linux-toradex.git/arch/mips/pic32, branch v5.18

MIPS: Remove redundant definitions of device_tree_init()

2022-03-14T14:09:02+00:00

There exists many same definitions of device_tree_init() for various
platforms, add a weak function in arch/mips/kernel/prom.c to clean
up the related code.

Signed-off-by: Tiezhu Yang 
Signed-off-by: Thomas Bogendoerfer

MIPS: Remove redundant check in device_tree_init()

2022-03-14T14:07:49+00:00

In device_tree_init(), unflatten_and_copy_device_tree() checks
initial_boot_params, so remove the redundant check.

drivers/of/fdt.c
void __init unflatten_and_copy_device_tree(void)
{
	int size;
	void *dt;

	if (!initial_boot_params) {
		pr_warn("No valid device tree found, continuing without\n");
		return;
	}
	...
}

Signed-off-by: Tiezhu Yang 
Signed-off-by: Thomas Bogendoerfer

clkdev: remove CONFIG_CLKDEV_LOOKUP

2021-06-08T15:00:09+00:00

This option is now synonymous with CONFIG_HAVE_CLK, so use
the latter globally. Any out-of-tree platform ports that
still use a private clk_get()/clk_put() implementation should
move to CONFIG_COMMON_CLK.

Signed-off-by: Arnd Bergmann

MIPS: of: Introduce helper function to get DTB

2021-02-04T12:34:51+00:00

Selection of the DTB to be used was burried in more or less readable
code in head.S. Move this code into a inline helper function and
use it.

Signed-off-by: Thomas Bogendoerfer 
Acked-by: Florian Fainelli

MIPS: Remove empty prom_free_prom_memory functions

2021-01-07T16:11:33+00:00

Most of the prom_free_prom_memory functions are empty. With
a new weak prom_free_prom_memory() we can remove all of them.

Signed-off-by: Thomas Bogendoerfer 
Acked-by: Florian Fainelli

MIPS: Use address-of operator on section symbols

2021-01-07T16:10:36+00:00

When building xway_defconfig with clang:

arch/mips/lantiq/prom.c:82:23: error: array comparison always evaluates
to true [-Werror,-Wtautological-compare]
        else if (__dtb_start != __dtb_end)
                             ^
1 error generated.

These are not true arrays, they are linker defined symbols, which are
just addresses. Using the address of operator silences the warning
and does not change the resulting assembly with either clang/ld.lld
or gcc/ld (tested with diff + objdump -Dr). Do the same thing across
the entire MIPS subsystem to ensure there are no more warnings around
this type of comparison.

Link: https://github.com/ClangBuiltLinux/linux/issues/1232
Signed-off-by: Nathan Chancellor 
Acked-by: Florian Fainelli 
Signed-off-by: Thomas Bogendoerfer

MIPS: Only include the platform file needed

2020-05-12T22:17:18+00:00

Instead of including all Platform files, we simply include the
needed one and avoid clashes with makefile variables.

Signed-off-by: Thomas Bogendoerfer

MIPS: pic32mzda: Drop pointless static qualifier

2020-02-28T11:44:39+00:00

There is no need to have the 'struct device_node *node' variable static
since new value always be assigned before use it.

Signed-off-by: YueHaibing 
Signed-off-by: Thomas Bogendoerfer

MIPS: pic32mzda: Replace by

2020-02-19T18:36:17+00:00

The Microchip PIC32MZDA platform code is not a clock provider, and just
needs to call of_clk_init().

Hence it can include  instead of .

Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Philippe Mathieu-Daudé 
Reviewed-by: Stephen Boyd 
Signed-off-by: Paul Burton 
Cc: Ralf Baechle 
Cc: Florian Fainelli 
Cc: Paul Cercueil 
Cc: James Hartley 
Cc: John Crispin 
Cc: linux-mips@vger.kernel.org
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: linux-clk@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

remove ioremap_nocache and devm_ioremap_nocache

2020-01-06T08:45:59+00:00

ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.

Signed-off-by: Christoph Hellwig 
Acked-by: Arnd Bergmann