diff options
Diffstat (limited to 'common/spl/spl.c')
| -rw-r--r-- | common/spl/spl.c | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/common/spl/spl.c b/common/spl/spl.c index 6e6dee7ec9..e5167bf73e 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -431,8 +431,13 @@ void preloader_console_init(void) * more stack space for things like the MMC sub-system. * * This function calculates the stack position, copies the global_data into - * place and returns the new stack position. The caller is responsible for - * setting up the sp register. + * place, sets the new gd (except for ARM, for which setting GD within a C + * function may not always work) and returns the new stack position. The + * caller is responsible for setting up the sp register and, in the case + * of ARM, setting up gd. + * + * All of this is done using the same layout and alignments as done in + * board_init_f_init_reserve() / board_init_f_alloc_reserve(). * * @return new stack location, or 0 to use the same stack */ @@ -440,14 +445,7 @@ ulong spl_relocate_stack_gd(void) { #ifdef CONFIG_SPL_STACK_R gd_t *new_gd; - ulong ptr; - - /* Get stack position: use 8-byte alignment for ABI compliance */ - ptr = CONFIG_SPL_STACK_R_ADDR - sizeof(gd_t); - ptr &= ~7; - new_gd = (gd_t *)ptr; - memcpy(new_gd, (void *)gd, sizeof(gd_t)); - gd = new_gd; + ulong ptr = CONFIG_SPL_STACK_R_ADDR; #ifdef CONFIG_SPL_SYS_MALLOC_SIMPLE if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) { @@ -460,7 +458,13 @@ ulong spl_relocate_stack_gd(void) gd->malloc_ptr = 0; } #endif - + /* Get stack position: use 8-byte alignment for ABI compliance */ + ptr = CONFIG_SPL_STACK_R_ADDR - roundup(sizeof(gd_t),16); + new_gd = (gd_t *)ptr; + memcpy(new_gd, (void *)gd, sizeof(gd_t)); +#if !defined(CONFIG_ARM) + gd = new_gd; +#endif return ptr; #else return 0; |
