diff options
| -rw-r--r-- | arch/microblaze/Kconfig | 8 | ||||
| -rw-r--r-- | board/xilinx/microblaze-generic/microblaze-generic.c | 19 |
2 files changed, 27 insertions, 0 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index 5cc68d63c4..5ce8261451 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -20,6 +20,14 @@ config TARGET_MICROBLAZE_GENERIC endchoice +config STACK_SIZE + hex "Define max stack size that can be used by u-boot" + default 0x200000 + help + Defines Max stack size that can be used by u-boot so that the + initrd_high will be calculated as base stack pointer minus this + stack size. + source "board/xilinx/microblaze-generic/Kconfig" config SPL_LDSCRIPT diff --git a/board/xilinx/microblaze-generic/microblaze-generic.c b/board/xilinx/microblaze-generic/microblaze-generic.c index 4e038ddf0c..30be0150f3 100644 --- a/board/xilinx/microblaze-generic/microblaze-generic.c +++ b/board/xilinx/microblaze-generic/microblaze-generic.c @@ -21,6 +21,7 @@ #include <asm/gpio.h> #include <dm/uclass.h> #include <wdt.h> +#include <linux/sizes.h> DECLARE_GLOBAL_DATA_PTR; @@ -39,6 +40,8 @@ int dram_init(void) int board_late_init(void) { + ulong max_size, lowmem_size; + #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_SYSRESET_MICROBLAZE) int ret; @@ -47,5 +50,21 @@ int board_late_init(void) if (ret) printf("Warning: No reset driver: ret=%d\n", ret); #endif + + if (!(gd->flags & GD_FLG_ENV_DEFAULT)) { + debug("Saved variables - Skipping\n"); + return 0; + } + + max_size = gd->start_addr_sp - CONFIG_STACK_SIZE; + max_size = round_down(max_size, SZ_16M); + + /* Linux default LOWMEM_SIZE is 0x30000000 = 768MB */ + lowmem_size = gd->ram_base + 768 * 1024 * 1024; + + env_set_addr("initrd_high", (void *)min_t(ulong, max_size, + lowmem_size)); + env_set_addr("fdt_high", (void *)min_t(ulong, max_size, lowmem_size)); + return 0; } |