This adds a new API dm_ofnode_pre_reloc(), a livetree equivalent API of dm_fdt_pre_reloc().
Signed-off-by: Bin Meng bmeng.cn@gmail.com ---
drivers/core/util.c | 25 +++++++++++++++++++++++++ include/dm/util.h | 27 ++++++++++++++++++++++++++- 2 files changed, 51 insertions(+), 1 deletion(-)
diff --git a/drivers/core/util.c b/drivers/core/util.c index 451d476..27a6848 100644 --- a/drivers/core/util.c +++ b/drivers/core/util.c @@ -4,6 +4,7 @@ */
#include <common.h> +#include <dm/ofnode.h> #include <dm/util.h> #include <linux/libfdt.h> #include <vsprintf.h> @@ -53,3 +54,27 @@ bool dm_fdt_pre_reloc(const void *blob, int offset)
return false; } + +bool dm_ofnode_pre_reloc(ofnode node) +{ + if (ofnode_read_bool(node, "u-boot,dm-pre-reloc")) + return true; + +#ifdef CONFIG_TPL_BUILD + if (ofnode_read_bool(node, "u-boot,dm-tpl")) + return true; +#elif defined(CONFIG_SPL_BUILD) + if (ofnode_read_bool(node, "u-boot,dm-spl")) + return true; +#else + /* + * In regular builds individual spl and tpl handling both + * count as handled pre-relocation for later second init. + */ + if (ofnode_read_bool(node, "u-boot,dm-spl") || + ofnode_read_bool(node, "u-boot,dm-tpl")) + return true; +#endif + + return false; +} diff --git a/include/dm/util.h b/include/dm/util.h index 898822e..9ff6531 100644 --- a/include/dm/util.h +++ b/include/dm/util.h @@ -55,7 +55,7 @@ static inline void dm_dump_devres(void) * There are 3 settings currently in use * - * - u-boot,dm-pre-reloc: legacy and indicates any of TPL or SPL - * Existing platforms only use it to indicate nodes needee in + * Existing platforms only use it to indicate nodes needed in * SPL. Should probably be replaced by u-boot,dm-spl for * existing platforms. * @blob: devicetree @@ -65,4 +65,29 @@ static inline void dm_dump_devres(void) */ bool dm_fdt_pre_reloc(const void *blob, int offset);
+/** + * Check if an of node should be or was bound before relocation. + * + * Devicetree nodes can be marked as needed to be bound + * in the loader stages via special devicetree properties. + * + * Before relocation this function can be used to check if nodes + * are required in either SPL or TPL stages. + * + * After relocation and jumping into the real U-Boot binary + * it is possible to determine if a node was bound in one of + * SPL/TPL stages. + * + * There are 3 settings currently in use + * - + * - u-boot,dm-pre-reloc: legacy and indicates any of TPL or SPL + * Existing platforms only use it to indicate nodes needed in + * SPL. Should probably be replaced by u-boot,dm-spl for + * existing platforms. + * @node: of node + * + * Returns true if node is needed in SPL/TL, false otherwise. + */ +bool dm_ofnode_pre_reloc(ofnode node); + #endif