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From: Krzysztof Halasa <khc@pm.waw.pl>
To: barebox@lists.infradead.org
Subject: my IXP4xx-related and other patches
Date: Mon, 20 Dec 2010 23:30:03 +0100	[thread overview]
Message-ID: <m362uodqms.fsf@intrepid.localdomain> (raw)

Hello,

I've been working a bit on IXP4xx support lately and it seems I'm at the
point I can now boot Barebox on a Goramo Multilink routers
(IXP425-based). It requires several patches (will post them shortly) and
NPE microcode files from Intel (or from elsewhere, the regular non-VLAN
microcode v. 2.4 is needed, i.e., same as with Linux).

The binary microcode must be appended to Barebox at correct offsets for
the NPE driver to find it, details are in board support file
(arch/arm/boards/multilink/multilink.c):

#define BAREBOX_START        0x00000
#define BAREBOX_LENGTH       0x34000
#define NPE_A_START          (BAREBOX_START + BAREBOX_LENGTH)
#define NPE_A_LENGTH         0x05000
#define NPE_B_START          (NPE_A_START + NPE_A_LENGTH)
#define NPE_B_LENGTH         0x03000
#define NPE_C_START          (NPE_B_START + NPE_B_LENGTH)
#define NPE_C_LENGTH         0x04000
#define NPE_ENV0_START       (NPE_C_START + NPE_C_LENGTH)
#define NPE_ENV0_LENGTH      0x20000

when passed to Linux:
Creating XXX MTD partitions on "IXP4XX-Flash.0":
0x000000000000-0x000000034000 : "barebox"
0x000000034000-0x000000039000 : "NPE-A"
0x000000039000-0x00000003c000 : "NPE-B"
0x00000003c000-0x000000040000 : "NPE-C"
0x000000040000-0x000000060000 : "env0"

User-available flash area starts at 0x60000.

All this IXP4xx code is big-endian only. Too much work with LE (NPE
coprocessors would need buffer byte swapping, flash (EXP bus) would need
16-bit word swapping etc). Big-endian Barebox can load both LE and BE
Linux anyway ("bootz" only at the moment).

It should be easily applicable to other IXP42x-based platforms.
-- 
Krzysztof Halasa

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             reply	other threads:[~2010-12-20 22:30 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-20 22:30 Krzysztof Halasa [this message]
2010-12-20 22:40 ` [PATCH 1] Delete unused file common/dlmalloc.src Krzysztof Halasa
2010-12-21  9:34   ` Sascha Hauer
2010-12-20 22:42 ` [PATCH 2] Remove unused eth_get_name() prototype Krzysztof Halasa
2010-12-20 22:44 ` [PATCH 3] Flash CFI: removed unused 'size' variable Krzysztof Halasa
2010-12-20 22:45 ` [PATCH 4] Fix help text for "loadb" and "loady" commands Krzysztof Halasa
2010-12-20 22:54 ` [PATCH 5] Fix error handling with malloc, memalign etc. Memalign() can't fail now Krzysztof Halasa
2010-12-21  8:58   ` Sascha Hauer
2010-12-22  0:58   ` Jean-Christophe PLAGNIOL-VILLARD
2010-12-22 19:00     ` Krzysztof Halasa
2010-12-23 11:25       ` Krzysztof Halasa
2010-12-23 10:36     ` Sascha Hauer
2010-12-20 22:58 ` [PATCH 6] ARM: support big/little endian switching in "bootz" Krzysztof Halasa
2010-12-21  7:41   ` Sascha Hauer
2010-12-22  1:00   ` Jean-Christophe PLAGNIOL-VILLARD
2010-12-22 18:55     ` Krzysztof Halasa
2010-12-23 10:47       ` Sascha Hauer
2010-12-20 23:01 ` [PATCH 7] Fix top-level Makefile to work with GNU make 3.82 Krzysztof Halasa
2010-12-20 23:02 ` [PATCH 8] Cosmetic fixes, including format attributes for printf() and friends Krzysztof Halasa
2010-12-20 23:04 ` [PATCH 9] ARM: support big-endian processors Krzysztof Halasa
2010-12-20 23:06 ` [PATCH 10] ARM: Add support for IXP4xx CPU and for Goramo Multilink router platform Krzysztof Halasa
2010-12-21  7:42   ` Belisko Marek
2010-12-21  9:25     ` Sascha Hauer
2010-12-21  9:30     ` Juergen Beisert
2010-12-21  8:35   ` Sascha Hauer
2010-12-22  0:48     ` Krzysztof Halasa
2010-12-22  0:57   ` Jean-Christophe PLAGNIOL-VILLARD
2010-12-22 12:46     ` Sascha Hauer
2010-12-22 19:36       ` Krzysztof Halasa
2010-12-23  3:26         ` Jean-Christophe PLAGNIOL-VILLARD
2010-12-23 11:42           ` Krzysztof Halasa
2010-12-22 19:13     ` Krzysztof Halasa
2010-12-20 23:08 ` [PATCH 11] Silence few warnings Krzysztof Halasa
2010-12-20 23:10 ` [PATCH 12] Fix NOR CFI flash driver to work on big endian systems Krzysztof Halasa
2010-12-22  1:01   ` Jean-Christophe PLAGNIOL-VILLARD
2010-12-22 12:48     ` Sascha Hauer
2010-12-20 23:14 ` [PATCH 13] Fix usage of __LITTLE_ENDIAN macro Krzysztof Halasa
2010-12-21  9:17 ` my IXP4xx-related and other patches Sascha Hauer
2010-12-22  0:51 ` [PATCH 5a] Fix error handling with malloc, memalign etc. Introduce xmemalign() Krzysztof Halasa
2010-12-22  0:53 ` [PATCH 6a] ARM: support big/little endian switching in "bootz" Krzysztof Halasa
2010-12-22  0:55 ` [PATCH 10a] ARM: Add support for IXP4xx CPU and for Goramo Multilink router platform Krzysztof Halasa

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