The devicetrees for various platforms already exceed 16k. Add a define CONFIG_SYS_FDT_SIZE to specify the FDT size, and set to 16k for the two boards that define this CONFIG_SYS_FDT_BASE parameter. This allows platforms with larger devicetree blobs to boot from NOR.

Signed-off-by: Mike Looijmans mike.looijmans@topic.nl --- v2: Instead of a default, just specify the value for the two boards that use it. common/spl/spl_nor.c | 4 ++-- include/configs/a3m071.h | 1 + include/configs/microblaze-generic.h | 1 + 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/common/spl/spl_nor.c b/common/spl/spl_nor.c index da2422f..8ea874c 100644 --- a/common/spl/spl_nor.c +++ b/common/spl/spl_nor.c @@ -40,11 +40,11 @@ int spl_nor_load_image(void)

/* * Copy DT blob (fdt) to SDRAM. Passing pointer to - * flash doesn't work (16 KiB should be enough for DT) + * flash doesn't work */ memcpy((void *)CONFIG_SYS_SPL_ARGS_ADDR, (void *)(CONFIG_SYS_FDT_BASE), - (16 << 10)); + CONFIG_SYS_FDT_SIZE);

return 0; } else { diff --git a/include/configs/a3m071.h b/include/configs/a3m071.h index 8f17dd1..ab2477c 100644 --- a/include/configs/a3m071.h +++ b/include/configs/a3m071.h @@ -334,6 +334,7 @@

#define CONFIG_SYS_OS_BASE 0xfc200000 #define CONFIG_SYS_FDT_BASE 0xfc1e0000 +#define CONFIG_SYS_FDT_SIZE (16<<10)

#define CONFIG_EXTRA_ENV_SETTINGS \ "netdev=eth0\0" \ diff --git a/include/configs/microblaze-generic.h b/include/configs/microblaze-generic.h index 047e756..e5bf700 100644 --- a/include/configs/microblaze-generic.h +++ b/include/configs/microblaze-generic.h @@ -305,6 +305,7 @@ 0x60000) #define CONFIG_SYS_FDT_BASE (CONFIG_SYS_FLASH_BASE + \ 0x40000) +#define CONFIG_SYS_FDT_SIZE (16<<10) #define CONFIG_SYS_SPL_ARGS_ADDR (CONFIG_SYS_TEXT_BASE + \ 0x1000000)