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| author | Simon Glass <sjg@chromium.org> | 2020-12-22 19:30:21 -0700 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2021-01-05 12:24:40 -0700 |
| commit | 38d6b7ebdaee3e0e8426ef1b9df88bdce8ae2e75 (patch) | |
| tree | 8270760e4e3f1e29be75d813b921fb65422c98d8 /common | |
| parent | acfb5308f5e51fd1f4428618d704ad0de2358871 (diff) | |
| download | u-boot-38d6b7ebdaee3e0e8426ef1b9df88bdce8ae2e75.tar.gz u-boot-38d6b7ebdaee3e0e8426ef1b9df88bdce8ae2e75.tar.xz u-boot-38d6b7ebdaee3e0e8426ef1b9df88bdce8ae2e75.zip | |
spl: Drop bd_info in the data section
This uses up space in the SPL binary but it always starts as zero. Also
some boards cannot support data in TPL (e.g. Intel Apollo Lake).
Use malloc() to allocate this structure instead, by moving the init a
little later, after malloc() is inited. Make this function optional since
it pulls in malloc().
This reduces the TPL binary size on coral by about 64 bytes
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'common')
| -rw-r--r-- | common/spl/Kconfig | 9 | ||||
| -rw-r--r-- | common/spl/spl.c | 20 |
2 files changed, 21 insertions, 8 deletions
diff --git a/common/spl/Kconfig b/common/spl/Kconfig index 6d980be0b7..6b0186763b 100644 --- a/common/spl/Kconfig +++ b/common/spl/Kconfig @@ -113,6 +113,15 @@ config SPL_FSL_PBL Create boot binary having SPL binary in PBI format concatenated with u-boot binary. +config SPL_ALLOC_BD + bool "Allocate memory for bd_info" + default y if X86 || SANDBOX + help + Some boards don't allocate space for this in their board_init_f() + code. In this case U-Boot can allocate space for gd->bd in the + standard SPL flow (board_init_r()). Enable this option to support + this feature. + endmenu config HANDOFF diff --git a/common/spl/spl.c b/common/spl/spl.c index 63c48fbf33..835c53deaa 100644 --- a/common/spl/spl.c +++ b/common/spl/spl.c @@ -53,9 +53,6 @@ binman_sym_declare(ulong, spl, image_pos); binman_sym_declare(ulong, spl, size); #endif -/* Define board data structure */ -static struct bd_info bdata __attribute__ ((section(".data"))); - /* * Board-specific Platform code can reimplement show_boot_progress () if needed */ @@ -443,14 +440,19 @@ static int spl_common_init(bool setup_malloc) return 0; } -void spl_set_bd(void) +int spl_alloc_bd(void) { /* * NOTE: On some platforms (e.g. x86) bdata may be in flash and not * writeable. */ - if (!gd->bd) - gd->bd = &bdata; + if (!gd->bd) { + gd->bd = malloc(sizeof(*gd->bd)); + if (!gd->bd) + return -ENOMEM; + } + + return 0; } int spl_early_init(void) @@ -600,8 +602,6 @@ void board_init_r(gd_t *dummy1, ulong dummy2) debug(">>" SPL_TPL_PROMPT "board_init_r()\n"); - spl_set_bd(); - #if defined(CONFIG_SYS_SPL_MALLOC_START) mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START, CONFIG_SYS_SPL_MALLOC_SIZE); @@ -611,6 +611,10 @@ void board_init_r(gd_t *dummy1, ulong dummy2) if (spl_init()) hang(); } + if (IS_ENABLED(CONFIG_SPL_ALLOC_BD) && spl_alloc_bd()) { + puts("Cannot alloc bd\n"); + hang(); + } #if !defined(CONFIG_PPC) && !defined(CONFIG_ARCH_MX6) /* * timer_init() does not exist on PPC systems. The timer is initialized |