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dm: core: Change platform specific translation-offset handling

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Testing has shown that the current DM implementation of a platform /
board specific translation offset, as its needed for the SPL on MVEBU
platforms is buggy. The translation offset is confingured too late,
after the driver bind functions are run. This may result in incorrect
address translations. With the current implementation its not possible
to configure the offset earlier, as the DM code has not run at all.

This patch now removed the set_/get_translation_offset() calls and
moves the translation offset into the GD variable translation_offset.
This variable will get used when CONFIG_TRANSLATION_OFFSET is enabled.
This option is enabled only for MVEBU on ARM32 platforms, where its
currenty needed and configured in the SPL.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Pierre Bourdon <delroth@gmail.com>
Cc: Baruch Siach <baruch@tkos.co.il>
Cc: Simon Glass <sjg@chromium.org>
Cc: Heiko Schocher <hs@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Tested-by: Pierre Bourdon <delroth@gmail.com>
Tested-by: Baruch Siach <baruch@tkos.co.il>
This commit is contained in:
Stefan Roese
2019-04-12 16:42:28 +02:00
committed by Simon Glass
parent 3a7c45f6a7
commit f2100f6f77
7 changed files with 29 additions and 48 deletions
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21
include/dm/fdtaddr.h
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@@ -120,25 +120,4 @@ fdt_addr_t devfdt_get_addr_size_index(struct udevice *dev, int index,
*/
fdt_addr_t devfdt_get_addr_name(struct udevice *dev, const char *name);
/**
* dm_set_translation_offset() - Set translation offset
* @offs: Translation offset
*
* Some platforms need a special address translation. Those
* platforms (e.g. mvebu in SPL) can configure a translation
* offset in the DM by calling this function. It will be
* added to all addresses returned in devfdt_get_addr().
*/
void dm_set_translation_offset(fdt_addr_t offs);
/**
* dm_get_translation_offset() - Get translation offset
*
* This function returns the translation offset that can
* be configured by calling dm_set_translation_offset().
*
* @return translation offset for the device address (0 as default).
*/
fdt_addr_t dm_get_translation_offset(void);
#endif