ofnode_read_bootscript_address() reads bootscript address from /options/u-boot DT node. bootscr-address or bootscr-ram-offset properties are read and values are filled. bootscr-address has higher priority than bootscr-ram-offset and the only one should be described in DT.
Also add test to cover this new function.
Reviewed-by: Simon Glass sjg@chromium.org Signed-off-by: Michal Simek michal.simek@amd.com ---
Changes in v5: - CI loop found some issues. Missing errno.h, multiple ofnode_read_bootscript_address() because of missing static inline for !DM cases
Changes in v4: - Update ofnode test based on review from Simon
Changes in v3: - new patch in this series
arch/sandbox/dts/test.dts | 7 +++++++ drivers/core/ofnode.c | 25 +++++++++++++++++++++++++ include/dm/ofnode.h | 26 ++++++++++++++++++++++++++ test/dm/ofnode.c | 14 ++++++++++++++ 4 files changed, 72 insertions(+)
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts index f351d5cb84b0..84879cc31ac0 100644 --- a/arch/sandbox/dts/test.dts +++ b/arch/sandbox/dts/test.dts @@ -79,6 +79,13 @@ }; };
+ options { + u-boot { + compatible = "u-boot,config"; + bootscr-ram-offset = /bits/ 64 <0x12345678>; + }; + }; + bootstd { bootph-verify; compatible = "u-boot,boot-std"; diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c index 8df16e56af5c..d94f0300c30a 100644 --- a/drivers/core/ofnode.c +++ b/drivers/core/ofnode.c @@ -1563,6 +1563,31 @@ const char *ofnode_conf_read_str(const char *prop_name) return ofnode_read_string(node, prop_name); }
+int ofnode_read_bootscript_address(u64 *bootscr_address, u64 *bootscr_offset) +{ + int ret; + ofnode uboot; + + *bootscr_address = 0; + *bootscr_offset = 0; + + uboot = ofnode_path("/options/u-boot"); + if (!ofnode_valid(uboot)) { + printf("%s: Missing /u-boot node\n", __func__); + return -EINVAL; + } + + ret = ofnode_read_u64(uboot, "bootscr-address", bootscr_address); + if (ret) { + ret = ofnode_read_u64(uboot, "bootscr-ram-offset", + bootscr_offset); + if (ret) + return -EINVAL; + } + + return 0; +} + ofnode ofnode_get_phy_node(ofnode node) { /* DT node properties that reference a PHY node */ diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h index 0f38b3e736de..c1afa69e1c56 100644 --- a/include/dm/ofnode.h +++ b/include/dm/ofnode.h @@ -20,6 +20,7 @@ struct resource;
#include <dm/ofnode_decl.h> +#include <linux/errno.h>
struct ofnode_phandle_args { ofnode node; @@ -1500,6 +1501,26 @@ int ofnode_conf_read_int(const char *prop_name, int default_val); */ const char *ofnode_conf_read_str(const char *prop_name);
+/** + * ofnode_read_bootscript_address() - Read bootscr-address or bootscr-ram-offset + * + * @bootscr_address: pointer to 64bit address where bootscr-address property value + * is stored + * @bootscr_offset: pointer to 64bit offset address where bootscr-ram-offset + * property value is stored + * + * This reads a bootscr-address or bootscr-ram-offset property from + * the /options/u-boot/ node of the devicetree. bootscr-address holds the full + * address of the boot script file. bootscr-ram-offset holds the boot script + * file offset from the start of the ram base address. When bootscr-address is + * defined, bootscr-ram-offset property is ignored. + * + * This only works with the control FDT. + * + * Return: 0 if OK, -EINVAL if property is not found. + */ +int ofnode_read_bootscript_address(u64 *bootscr_address, u64 *bootscr_offset); + #else /* CONFIG_DM */ static inline bool ofnode_conf_read_bool(const char *prop_name) { @@ -1516,6 +1537,11 @@ static inline const char *ofnode_conf_read_str(const char *prop_name) return NULL; }
+static inline int ofnode_read_bootscript_address(u64 *bootscr_address, u64 *bootscr_offset) +{ + return -EINVAL; +} + #endif /* CONFIG_DM */
/** diff --git a/test/dm/ofnode.c b/test/dm/ofnode.c index 6fbebc7da085..a4e04f23784f 100644 --- a/test/dm/ofnode.c +++ b/test/dm/ofnode.c @@ -583,6 +583,20 @@ static int dm_test_ofnode_conf(struct unit_test_state *uts) } DM_TEST(dm_test_ofnode_conf, 0);
+static int dm_test_ofnode_options(struct unit_test_state *uts) +{ + u64 bootscr_address; + u64 bootscr_offset; + + ut_assertok(ofnode_read_bootscript_address(&bootscr_address, + &bootscr_offset)); + ut_asserteq_64(0, bootscr_address); + ut_asserteq_64(0x12345678, bootscr_offset); + + return 0; +} +DM_TEST(dm_test_ofnode_options, 0); + static int dm_test_ofnode_for_each_compatible_node(struct unit_test_state *uts) { const char compatible[] = "denx,u-boot-fdt-test";