diff options
Diffstat (limited to 'common/spl/spl.c')
| -rw-r--r-- | common/spl/spl.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/common/spl/spl.c b/common/spl/spl.c index 8eea2f9..df984b8 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -17,6 +17,7 @@ #include <malloc.h> #include <dm/root.h> #include <linux/compiler.h> +#include <fdt_support.h> DECLARE_GLOBAL_DATA_PTR; @@ -56,6 +57,14 @@ __weak int spl_start_uboot(void) return 1; } +/* weak default platform specific function to initialize + * dram banks + */ +__weak int dram_init_banksize(void) +{ + return 0; +} + /* * Weak default function for arch specific zImage check. Return zero * and fill start and end address if image is recognized. @@ -66,6 +75,33 @@ int __weak bootz_setup(ulong image, ulong *start, ulong *end) } #endif +void spl_fixup_fdt(void) +{ +#if defined(CONFIG_SPL_OF_LIBFDT) && defined(CONFIG_SYS_SPL_ARGS_ADDR) + void *fdt_blob = (void *)CONFIG_SYS_SPL_ARGS_ADDR; + int err; + + err = fdt_check_header(fdt_blob); + if (err < 0) { + printf("fdt_root: %s\n", fdt_strerror(err)); + return; + } + + /* fixup the memory dt node */ + err = fdt_shrink_to_minimum(fdt_blob, 0); + if (err == 0) { + printf("spl: fdt_shrink_to_minimum err - %d\n", err); + return; + } + + err = arch_fixup_fdt(fdt_blob); + if (err) { + printf("spl: arch_fixup_fdt err - %d\n", err); + return; + } +#endif +} + /* * Weak default function for board specific cleanup/preparation before * Linux boot. Some boards/platforms might not need it, so just provide @@ -323,6 +359,9 @@ void board_init_r(gd_t *dummy1, ulong dummy2) debug(">>spl:board_init_r()\n"); gd->bd = &bdata; +#ifdef CONFIG_SPL_OS_BOOT + dram_init_banksize(); +#endif #if defined(CONFIG_SYS_SPL_MALLOC_START) mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START, @@ -364,6 +403,7 @@ void board_init_r(gd_t *dummy1, ulong dummy2) #ifdef CONFIG_SPL_OS_BOOT case IH_OS_LINUX: debug("Jumping to Linux\n"); + spl_fixup_fdt(); spl_board_prepare_for_linux(); jump_to_image_linux(&spl_image); #endif |