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dm: core: Add option to configure an offset for the address translation

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Some platforms need to ability to configure an offset to the standard
addresses extracted from the device-tree. This patch allows this by
adding a function to DM to configure this offset (if needed).

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Simon Glass <sjg@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
Fixed space before tab:
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Stefan Roese
2015-12-14 16:18:15 +01:00
committed by Simon Glass
parent 9b20519887
commit 66eaea6cd1
3 changed files with 62 additions and 11 deletions
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31
drivers/core/device.c
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@@ -597,22 +597,31 @@ fdt_addr_t dev_get_addr(struct udevice *dev)
* Use the full-fledged translate function for complex
* bus setups.
*/
return fdt_translate_address((void *)gd->fdt_blob,
addr = fdt_translate_address((void *)gd->fdt_blob,
dev->of_offset, reg);
} else {
/*
* Use the "simple" translate function for less complex
* bus setups.
*/
addr = fdtdec_get_addr_size_auto_parent(gd->fdt_blob,
dev->parent->of_offset,
dev->of_offset, "reg",
0, NULL);
if (CONFIG_IS_ENABLED(SIMPLE_BUS) && addr != FDT_ADDR_T_NONE) {
if (device_get_uclass_id(dev->parent) ==
UCLASS_SIMPLE_BUS)
addr = simple_bus_translate(dev->parent, addr);
}
}
/*
* Use the "simple" translate function for less complex
* bus setups.
* Some platforms need a special address translation. Those
* platforms (e.g. mvebu in SPL) can configure a translation
* offset in the DM by calling dm_set_translation_offset() that
* will get added to all addresses returned by dev_get_addr().
*/
addr = fdtdec_get_addr_size_auto_parent(gd->fdt_blob,
dev->parent->of_offset,
dev->of_offset, "reg",
0, NULL);
if (CONFIG_IS_ENABLED(SIMPLE_BUS) && addr != FDT_ADDR_T_NONE) {
if (device_get_uclass_id(dev->parent) == UCLASS_SIMPLE_BUS)
addr = simple_bus_translate(dev->parent, addr);
}
addr += dm_get_translation_offset();
return addr;
#else