From: swarren@wwwdotorg•org (Stephen Warren)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH V2 3/3] ARM: tegra: move debug-macro.S to include/debug
Date: Fri, 19 Oct 2012 10:40:29 -0600 [thread overview]
Message-ID: <5081827D.9060906@wwwdotorg.org> (raw)
In-Reply-To: <5080088C.9090607@gmail.com>
On 10/18/2012 07:47 AM, Rob Herring wrote:
...
> Here is what I mentioned previously. This removes the static mapping from
> the platforms. This is untested and probably breaks on different DEBUG_LL
> options. For now, platforms call debug_ll_io_init, but once all platforms
> are converted, this can be called from devicemaps_init.
> diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
> +void __init debug_ll_io_init(void)
> +{
> + struct map_desc map;
> +
> + if (!IS_ENABLED(CONFIG_DEBUG_LL))
> + return;
> +
> + debug_ll_addr(&map.pfn, &map.virtual);
> + map.pfn = __phys_to_pfn(map.pfn);
> + map.length = PAGE_SIZE;
> + map.type = MT_DEVICE;
> + create_mapping(&map);
> +}
OK, so I just call this new function from Tegra's tegra_map_common_io().
That looks pretty neat. I'll give it a try.
next prev parent reply other threads:[~2012-10-19 16:40 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-15 19:07 [PATCH V2 1/3] ARM: tegra: simplify DEBUG_LL UART selection options Stephen Warren
2012-10-15 19:07 ` [PATCH V2 2/3] ARM: tegra: make debug-macro.S work standalone Stephen Warren
2012-10-15 19:07 ` [PATCH V2 3/3] ARM: tegra: move debug-macro.S to include/debug Stephen Warren
2012-10-17 14:03 ` Arnd Bergmann
2012-10-17 14:38 ` Rob Herring
2012-10-17 16:22 ` Stephen Warren
2012-10-17 21:12 ` Stephen Warren
2012-10-18 9:53 ` Russell King - ARM Linux
2012-10-19 16:37 ` Stephen Warren
2012-10-18 13:47 ` Rob Herring
2012-10-18 13:54 ` Russell King - ARM Linux
2012-10-18 14:15 ` Rob Herring
2012-10-19 16:40 ` Stephen Warren [this message]
2012-10-17 23:17 ` Rob Herring
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