diff options
| -rw-r--r-- | src/soc/sifive/fu540/cbmem.c | 8 | ||||
| -rw-r--r-- | src/soc/sifive/fu540/include/soc/addressmap.h | 1 |
2 files changed, 7 insertions, 2 deletions
diff --git a/src/soc/sifive/fu540/cbmem.c b/src/soc/sifive/fu540/cbmem.c index 8648370f20..1c68de894b 100644 --- a/src/soc/sifive/fu540/cbmem.c +++ b/src/soc/sifive/fu540/cbmem.c @@ -14,9 +14,13 @@ */ #include <cbmem.h> +#include <soc/addressmap.h> +#include <soc/sdram.h> +#include <stdlib.h> +#include <symbols.h> void *cbmem_top(void) { - /* dummy value */ - return (void *)(4ULL * GiB); + return (void *)min((uintptr_t)_dram + sdram_size_mb() * MiB, + FU540_MAXDRAM); } diff --git a/src/soc/sifive/fu540/include/soc/addressmap.h b/src/soc/sifive/fu540/include/soc/addressmap.h index 21709b5443..cd611494bb 100644 --- a/src/soc/sifive/fu540/include/soc/addressmap.h +++ b/src/soc/sifive/fu540/include/soc/addressmap.h @@ -34,3 +34,4 @@ #define FU540_QSPI0FLASH 0x20000000 #define FU540_QSPI1FLASH 0x30000000 #define FU540_DRAM 0x80000000 +#define FU540_MAXDRAM 0x2000000000ULL |