[PATCHv3 1/3] common: Allow for I/O mapped I/O

[Sascha Hauer]

Hi Michel,

Looks good overall. Some small remaining remarks.

On Sat, Apr 05, 2014 at 03:37:36PM +0200, michel at reverze.net wrote:
> diff --git a/commands/iomemport.c b/commands/iomemport.c
> new file mode 100644
> index 0000000..06bbd92
> --- /dev/null
> +++ b/commands/iomemport.c
> @@ -0,0 +1,64 @@
> +/*
> + * iomem.c - barebox iomem command
> + *
> + * Copyright (c) 2011 Sascha Hauer <s.hauer at pengutronix.de>, Pengutronix
> + *
> + * See file CREDITS for list of people who contributed to this
> + * project.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2
> + * as published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + */
> +#include <common.h>
> +#include <command.h>
> +
> +static void __print_resources(struct resource *res, int indent)
> +{
> +	struct resource *r;
> +	int i;
> +
> +	for (i = 0; i < indent; i++)
> +		printf("  ");
> +
> +	printf(PRINTF_CONVERSION_RESOURCE " - " PRINTF_CONVERSION_RESOURCE
> +			" (size " PRINTF_CONVERSION_RESOURCE ") %s\n",
> +			res->start, res->end, resource_size(res), res->name);
> +
> +	list_for_each_entry(r, &res->children, sibling)
> +		__print_resources(r, indent + 1);
> +}
> +
> +static void print_resources(struct resource *res)
> +{
> +	__print_resources(res, 0);
> +}
> +
> +static int do_iomem(int argc, char *argv[])
> +{
> +	print_resources(&iomem_resource);
> +
> +	return 0;
> +}
> +
> +static int do_ioport(int argc, char *argv[])
> +{
> +	print_resources(&ioport_resource);
> +
> +	return 0;
> +}
> +
> +BAREBOX_CMD_START(iomem)
> +	.cmd		= do_iomem,
> +	.usage		= "show iomem usage",
> +BAREBOX_CMD_END
> +
> +BAREBOX_CMD_START(ioport)
> +	.cmd		= do_ioport,
> +	.usage		= "show ioport usage",
> +BAREBOX_CMD_END

Can we surround this with a

#if IOSPACE_LIMIT > 0

So that users of architectures without iospace are not presesnted a
useless command?

BTW In this version there's no whitespace damage anymore. The patches
apply without problems now.

Sascha

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