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| author | Fabien Dessenne <fabien.dessenne@st.com> | 2019-05-31 16:11:30 +0300 |
|---|---|---|
| committer | Patrick Delaunay <patrick.delaunay@st.com> | 2019-07-22 10:21:28 +0300 |
| commit | 641067fb0c64dec8b6da962eb1d9fc49a6c7b499 (patch) | |
| tree | 594af009ab9d03084047c09310018efe257cf926 /drivers/core/of_addr.c | |
| parent | 0de815356474912ef5bef9a69f0327a5a93bb2c2 (diff) | |
| download | u-boot-641067fb0c64dec8b6da962eb1d9fc49a6c7b499.tar.xz | |
dm: core: Introduce xxx_translate_dma_address()
Add the following functions to translate DMA address to CPU address:
- dev_translate_dma_address()
- ofnode_translate_dma_address()
- of_translate_dma_address()
- fdt_translate_dma_address()
These functions work the same way as xxx_translate_address(), with the
difference that the translation relies on the "dma-ranges" property
instead of the "ranges" property.
Add related test. Test report:
=> ut dm fdt_translation
Test: dm_test_fdt_translation: test-fdt.c
Test: dm_test_fdt_translation: test-fdt.c (flat tree)
Failures: 0
Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Diffstat (limited to 'drivers/core/of_addr.c')
| -rw-r--r-- | drivers/core/of_addr.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/core/of_addr.c b/drivers/core/of_addr.c index 1bfaaeec00..4e256d9926 100644 --- a/drivers/core/of_addr.c +++ b/drivers/core/of_addr.c @@ -318,6 +318,10 @@ u64 of_translate_address(const struct device_node *dev, const __be32 *in_addr) return __of_translate_address(dev, in_addr, "ranges"); } +u64 of_translate_dma_address(const struct device_node *dev, const __be32 *in_addr) +{ + return __of_translate_address(dev, in_addr, "dma-ranges"); +} static int __of_address_to_resource(const struct device_node *dev, const __be32 *addrp, u64 size, unsigned int flags, |