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| author | Fabien Dessenne <fabien.dessenne@st.com> | 2019-05-31 15:11:30 +0200 |
|---|---|---|
| committer | Patrick Delaunay <patrick.delaunay@st.com> | 2019-07-22 09:21:28 +0200 |
| commit | 641067fb0c64dec8b6da962eb1d9fc49a6c7b499 (patch) | |
| tree | 594af009ab9d03084047c09310018efe257cf926 /common/fdt_support.c | |
| parent | 0de815356474912ef5bef9a69f0327a5a93bb2c2 (diff) | |
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 'common/fdt_support.c')
| -rw-r--r-- | common/fdt_support.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/common/fdt_support.c b/common/fdt_support.c index f31e9b0cc5..a23367b54a 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -1292,6 +1292,12 @@ u64 fdt_translate_address(const void *blob, int node_offset, return __of_translate_address(blob, node_offset, in_addr, "ranges"); } +u64 fdt_translate_dma_address(const void *blob, int node_offset, + const fdt32_t *in_addr) +{ + return __of_translate_address(blob, node_offset, in_addr, "dma-ranges"); +} + /** * fdt_node_offset_by_compat_reg: Find a node that matches compatiable and * who's reg property matches a physical cpu address |