Add functions ofnode_get_addr_size_index_notrans(), which is a non-translating version of ofnode_get_addr_size_index().
Some addresses are not meant to be translated, for example those of MTD fixed-partitions.
Signed-off-by: Marek Behún marek.behun@nic.cz Reviewed-by: Simon Glass sjg@chromium.org Reviewed-by: Miquel Raynal miquel.raynal@bootlin.com Tested-by: Patrice Chotard patrice.chotard@foss.st.com --- drivers/core/ofnode.c | 19 ++++++++++++++++--- include/dm/ofnode.h | 17 +++++++++++++++++ test/dm/ofnode.c | 5 +++++ 3 files changed, 38 insertions(+), 3 deletions(-)
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c index 6c771e364f..dd34cf8ca3 100644 --- a/drivers/core/ofnode.c +++ b/drivers/core/ofnode.c @@ -299,7 +299,8 @@ ofnode ofnode_get_by_phandle(uint phandle) return node; }
-fdt_addr_t ofnode_get_addr_size_index(ofnode node, int index, fdt_size_t *size) +static fdt_addr_t __ofnode_get_addr_size_index(ofnode node, int index, + fdt_size_t *size, bool translate) { int na, ns;
@@ -319,7 +320,7 @@ fdt_addr_t ofnode_get_addr_size_index(ofnode node, int index, fdt_size_t *size)
ns = of_n_size_cells(ofnode_to_np(node));
- if (IS_ENABLED(CONFIG_OF_TRANSLATE) && ns > 0) { + if (translate && IS_ENABLED(CONFIG_OF_TRANSLATE) && ns > 0) { return of_translate_address(ofnode_to_np(node), prop_val); } else { na = of_n_addr_cells(ofnode_to_np(node)); @@ -330,12 +331,24 @@ fdt_addr_t ofnode_get_addr_size_index(ofnode node, int index, fdt_size_t *size) ns = ofnode_read_simple_size_cells(ofnode_get_parent(node)); return fdtdec_get_addr_size_fixed(gd->fdt_blob, ofnode_to_offset(node), "reg", - index, na, ns, size, true); + index, na, ns, size, + translate); }
return FDT_ADDR_T_NONE; }
+fdt_addr_t ofnode_get_addr_size_index(ofnode node, int index, fdt_size_t *size) +{ + return __ofnode_get_addr_size_index(node, index, size, true); +} + +fdt_addr_t ofnode_get_addr_size_index_notrans(ofnode node, int index, + fdt_size_t *size) +{ + return __ofnode_get_addr_size_index(node, index, size, false); +} + fdt_addr_t ofnode_get_addr_index(ofnode node, int index) { fdt_size_t size; diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h index 8a69fd87da..e3fccb506e 100644 --- a/include/dm/ofnode.h +++ b/include/dm/ofnode.h @@ -489,6 +489,23 @@ int ofnode_read_size(ofnode node, const char *propname); phys_addr_t ofnode_get_addr_size_index(ofnode node, int index, fdt_size_t *size);
+/** + * ofnode_get_addr_size_index_notrans() - get an address/size from a node + * based on index, without address + * translation + * + * This reads the register address/size from a node based on index. + * The resulting address is not translated. Useful for example for on-disk + * addresses. + * + * @node: node to read from + * @index: Index of address to read (0 for first) + * @size: Pointer to size of the address + * @return address, or FDT_ADDR_T_NONE if not present or invalid + */ +phys_addr_t ofnode_get_addr_size_index_notrans(ofnode node, int index, + fdt_size_t *size); + /** * ofnode_get_addr_index() - get an address from a node * diff --git a/test/dm/ofnode.c b/test/dm/ofnode.c index e0b525eeb1..9a69cf70c1 100644 --- a/test/dm/ofnode.c +++ b/test/dm/ofnode.c @@ -289,6 +289,11 @@ static int dm_test_ofnode_get_reg(struct unit_test_state *uts) ut_asserteq(FDT_ADDR_T_NONE, addr); ut_asserteq(FDT_SIZE_T_NONE, size);
+ node = ofnode_path("/translation-test@8000/noxlatebus@3,300/dev@42"); + ut_assert(ofnode_valid(node)); + addr = ofnode_get_addr_size_index_notrans(node, 0, &size); + ut_asserteq_64(0x42, addr); + return 0; } DM_TEST(dm_test_ofnode_get_reg, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);