From: Tom Rini <trini@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v1 8/9] sunxi: non-FEL SPL boot support for sun7i
Date: Fri, 14 Mar 2014 15:03:16 -0400 [thread overview]
Message-ID: <53235274.7030401@ti.com> (raw)
In-Reply-To: <53234F71.40402@redhat.com>
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On 03/14/2014 02:50 PM, Hans de Goede wrote:
> Hi,
>
> On 03/14/2014 03:17 PM, Tom Rini wrote:
>> On Fri, Mar 14, 2014 at 10:33:50AM +0000, Ian Campbell wrote:
>>
>>> Based linux-sunxi#sunxi commit d854c4de2f57 "arm: Handle .gnu.hash section in
>>> ldscripts" vs v2014.01.
>> [snip]
>>> +/* Flat Device Tree (FDT/DT) support */
>>> +#define CONFIG_OF_LIBFDT
>>> +#define CONFIG_SYS_BOOTMAPSZ (16 << 20)
>>
>> This seems pretty small. This is to keep things from being relocated
>> into highmem right?
>
> Hmm, this reminds me that we currently need to do a "env set fdt_high ffffffff"
> in our boot scripts to get ftd to work at all. Would be nice to fix this for
> upstream. I'm afraid I'm clueless as to why we (sunxi) need it, but we do.
You want to be setting bootm_low (even for bootz, it's about the
underlying boot mechanics that bootz and bootelf and ... hook into) to
the amount of lowmem the kernel will have. We do this because we do
want to make sure that the device tree isn't overwritten by the kernel
BSS or similar. Everyone with more DDR than kernel lowmem needs to be
doing something along these lines.
- --
Tom
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next prev parent reply other threads:[~2014-03-14 19:03 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-14 10:33 [U-Boot] [PATCH v1 0/9] sunxi: initial upstreamining effort Ian Campbell
2014-03-14 10:33 ` [U-Boot] [PATCH v1 1/9] sunxi: initial sun7i clocks and timer support Ian Campbell
2014-03-14 14:16 ` Tom Rini
2014-03-14 10:33 ` [U-Boot] [PATCH v1 2/9] sunxi: initial sun7i pinmux and gpio support Ian Campbell
2014-03-14 14:17 ` Tom Rini
2014-03-14 10:33 ` [U-Boot] [PATCH v1 3/9] sunxi: initial sun7i dram setup support Ian Campbell
2014-03-14 14:17 ` Tom Rini
2014-03-14 16:28 ` [U-Boot] [linux-sunxi] " Henrik Nordström
2014-03-14 17:24 ` Luke Kenneth Casson Leighton
2014-03-17 13:16 ` [U-Boot] " Stefan
2014-03-17 14:56 ` [U-Boot] [linux-sunxi] " Ian Campbell
2014-03-14 17:23 ` [U-Boot] " Alex G.
2014-03-14 18:59 ` Tom Rini
2014-03-14 10:33 ` [U-Boot] [PATCH v1 4/9] sunxi: initial generic sun7i cpu, board and start of day support Ian Campbell
2014-03-14 14:17 ` Tom Rini
2014-03-15 15:57 ` Alex G.
2014-03-14 10:33 ` [U-Boot] [PATCH v1 5/9] sunxi: generic sun7i build infrastructure Ian Campbell
2014-03-14 14:17 ` Tom Rini
2014-03-16 13:25 ` Ian Campbell
2014-03-17 15:04 ` Tom Rini
2014-03-17 15:24 ` Ian Campbell
2014-03-14 10:33 ` [U-Boot] [PATCH v1 6/9] sunxi: add support for Cubietruck booting in FEL mode Ian Campbell
2014-03-14 14:17 ` Tom Rini
2014-03-14 10:33 ` [U-Boot] [PATCH v1 7/9] sunxi: mmc support Ian Campbell
2014-03-14 14:17 ` Tom Rini
2014-03-14 15:36 ` Pantelis Antoniou
2014-03-16 20:38 ` Ian Campbell
2014-03-17 2:13 ` [U-Boot] [linux-sunxi] " Chen-Yu Tsai
2014-03-14 10:33 ` [U-Boot] [PATCH v1 8/9] sunxi: non-FEL SPL boot support for sun7i Ian Campbell
2014-03-14 14:17 ` Tom Rini
2014-03-14 18:50 ` Hans de Goede
2014-03-14 19:03 ` Tom Rini [this message]
2014-03-16 15:19 ` Ian Campbell
2014-03-16 16:45 ` Ian Campbell
2014-03-17 15:20 ` Tom Rini
2014-03-17 15:29 ` Ian Campbell
2014-03-17 15:36 ` Tom Rini
2014-03-17 19:33 ` Tom Rini
2014-03-18 8:22 ` [U-Boot] [linux-sunxi] " Maxime Ripard
2014-03-21 14:58 ` Tom Rini
2014-03-20 19:57 ` [U-Boot] " Ian Campbell
2014-03-14 10:33 ` [U-Boot] [PATCH v1 9/9] sunxi: add gmac Ethernet support Ian Campbell
2014-03-14 11:11 ` [U-Boot] [linux-sunxi] " Chen-Yu Tsai
2014-03-14 11:28 ` Ian Campbell
2014-03-14 14:22 ` Tom Rini
2014-03-16 15:09 ` Ian Campbell
2014-03-17 15:06 ` Tom Rini
2014-03-14 14:17 ` [U-Boot] " Tom Rini
2014-03-14 12:55 ` [U-Boot] [PATCH v1 0/9] sunxi: initial upstreamining effort Tom Rini
2014-03-14 13:59 ` Ian Campbell
2014-03-14 14:19 ` Tom Rini
2014-03-14 15:01 ` Albert ARIBAUD
2014-03-14 19:07 ` Hans de Goede
2014-03-14 19:11 ` Hans de Goede
2014-03-14 13:02 ` Albert ARIBAUD
2014-03-14 13:13 ` Maxime Ripard
2014-03-14 14:03 ` Ian Campbell
2014-03-14 14:16 ` Tom Rini
2014-03-14 15:04 ` Ian Campbell
2014-03-14 15:13 ` Tom Rini
2014-03-14 20:17 ` Dennis Gilmore
2014-03-15 16:02 ` Hans de Goede
2014-03-16 7:49 ` Ian Campbell
2014-03-14 14:31 ` Marek Vasut
2014-03-14 15:21 ` Henrik Nordström
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