diff options
| -rw-r--r-- | arch/microblaze/include/asm/system.h | 2 | ||||
| -rw-r--r-- | board/xilinx/microblaze-generic/microblaze-generic.c | 21 |
2 files changed, 23 insertions, 0 deletions
diff --git a/arch/microblaze/include/asm/system.h b/arch/microblaze/include/asm/system.h index 3107748d3bd..050a8b40763 100644 --- a/arch/microblaze/include/asm/system.h +++ b/arch/microblaze/include/asm/system.h @@ -23,6 +23,8 @@ #endif #include <asm/ptrace.h> +#define MMU_SECTION_SIZE (1 * 1024 * 1024) + #define prepare_to_switch() do { } while (0) /* diff --git a/board/xilinx/microblaze-generic/microblaze-generic.c b/board/xilinx/microblaze-generic/microblaze-generic.c index a427ac94a17..f58ecd1590c 100644 --- a/board/xilinx/microblaze-generic/microblaze-generic.c +++ b/board/xilinx/microblaze-generic/microblaze-generic.c @@ -14,6 +14,8 @@ #include <config.h> #include <env.h> #include <init.h> +#include <image.h> +#include <lmb.h> #include <log.h> #include <asm/global_data.h> #include <dm/lists.h> @@ -36,6 +38,25 @@ int dram_init(void) return 0; }; +ulong board_get_usable_ram_top(ulong total_size) +{ + phys_size_t size; + phys_addr_t reg; + struct lmb lmb; + + /* found enough not-reserved memory to relocated U-Boot */ + lmb_init(&lmb); + lmb_add(&lmb, gd->ram_base, gd->ram_size); + boot_fdt_add_mem_rsv_regions(&lmb, (void *)gd->fdt_blob); + size = ALIGN(CONFIG_SYS_MALLOC_LEN + total_size, MMU_SECTION_SIZE); + reg = lmb_alloc(&lmb, size, MMU_SECTION_SIZE); + + if (!reg) + reg = gd->ram_top - size; + + return reg + size; +} + int board_late_init(void) { ulong max_size; |