[PATCH] fdt_support: Add kernel-doc for fdt_fixup_memory_banks()
Add kernel-doc description for fdt_fixup_memory_banks() because it is implemented in one specific way and this information should be available for others to decide if their SoC conforms to it. If you don't want U-Boot to update your memory DT layout please disable CONFIG_ARCH_FIXUP_FDT_MEMORY.
Signed-off-by: Michal Simek michal.simek@xilinx.com ---
common/fdt_support.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/common/fdt_support.c b/common/fdt_support.c index 4341d84bd5ec..8992ac5d3fca 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -420,6 +420,24 @@ static int fdt_pack_reg(const void *fdt, void *buf, u64 *address, u64 *size, #else #define MEMORY_BANKS_MAX 4 #endif + +/** + * fdt_fixup_memory_banks - Update DT memory node + * @blob: Pointer to DT blob + * @start: Pointer to memory start addresses array + * @size: Pointer to memory sizes array + * @banks: Number of memory banks + * + * Return: 0 on success, negative value on failure + * + * Based on the passed number of banks and arrays, the function is able to + * update existing DT memory nodes to match run time detected/changed memory + * configuration. Implementation is handling one specific case with only one + * memory node where multiple tuples could be added/updated. + * The case where multiple memory nodes with a single tuple (base, size) are + * used, this function is only updating the first memory node without removing + * others. + */ int fdt_fixup_memory_banks(void *blob, u64 start[], u64 size[], int banks) { int err, nodeoffset;
On Tue, 10 Aug 2021 at 01:30, Michal Simek michal.simek@xilinx.com wrote:
Add kernel-doc description for fdt_fixup_memory_banks() because it is implemented in one specific way and this information should be available for others to decide if their SoC conforms to it. If you don't want U-Boot to update your memory DT layout please disable CONFIG_ARCH_FIXUP_FDT_MEMORY.
Signed-off-by: Michal Simek michal.simek@xilinx.com
common/fdt_support.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
Reviewed-by: Simon Glass sjg@chromium.org
út 10. 8. 2021 v 9:30 odesílatel Michal Simek michal.simek@xilinx.com napsal:
Add kernel-doc description for fdt_fixup_memory_banks() because it is implemented in one specific way and this information should be available for others to decide if their SoC conforms to it. If you don't want U-Boot to update your memory DT layout please disable CONFIG_ARCH_FIXUP_FDT_MEMORY.
Signed-off-by: Michal Simek michal.simek@xilinx.com
common/fdt_support.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/common/fdt_support.c b/common/fdt_support.c index 4341d84bd5ec..8992ac5d3fca 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -420,6 +420,24 @@ static int fdt_pack_reg(const void *fdt, void *buf, u64 *address, u64 *size, #else #define MEMORY_BANKS_MAX 4 #endif
+/**
- fdt_fixup_memory_banks - Update DT memory node
- @blob: Pointer to DT blob
- @start: Pointer to memory start addresses array
- @size: Pointer to memory sizes array
- @banks: Number of memory banks
- Return: 0 on success, negative value on failure
- Based on the passed number of banks and arrays, the function is able to
- update existing DT memory nodes to match run time detected/changed memory
- configuration. Implementation is handling one specific case with only one
- memory node where multiple tuples could be added/updated.
- The case where multiple memory nodes with a single tuple (base, size) are
- used, this function is only updating the first memory node without removing
- others.
- */
int fdt_fixup_memory_banks(void *blob, u64 start[], u64 size[], int banks) { int err, nodeoffset; -- 2.32.0
Applied. M
participants (3)
-
Michal Simek -
Michal Simek -
Simon Glass