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authorMike Frysinger <vapier@gentoo.org>2012-02-29 22:48:10 -0500
committerMike Frysinger <vapier@gentoo.org>2012-04-22 13:00:19 -0400
commita4932d78774a96bef65c5ae3c76538d4949dc9eb (patch)
tree3c30fa242d5e135a8fd3c7ca3427472b0b25e7c6 /arch/blackfin/lib/board.c
parent33e7e60c77ec89cd969ff5718f798f881c2832b7 (diff)
downloadu-boot-linaro-stable-a4932d78774a96bef65c5ae3c76538d4949dc9eb.tar.gz
Blackfin: move gd/bd to bss by default
We don't need these setup manually, so let the bss do the rest. On Blackfin systems, we clear the bss before executing any C code that would use these, so this should be fine. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/lib/board.c')
-rw-r--r--arch/blackfin/lib/board.c58
1 files changed, 42 insertions, 16 deletions
diff --git a/arch/blackfin/lib/board.c b/arch/blackfin/lib/board.c
index e3ee4cd35..2d424a2da 100644
--- a/arch/blackfin/lib/board.c
+++ b/arch/blackfin/lib/board.c
@@ -181,6 +181,46 @@ void init_cplbtables(void)
}
}
+static int global_board_data_init(void)
+{
+#ifndef CONFIG_SYS_GBL_DATA_ADDR
+# define CONFIG_SYS_GBL_DATA_ADDR 0
+#endif
+#ifndef CONFIG_SYS_BD_INFO_ADDR
+# define CONFIG_SYS_BD_INFO_ADDR 0
+#endif
+
+ bd_t *bd;
+
+ if (CONFIG_SYS_GBL_DATA_ADDR) {
+ gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
+ memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
+ } else {
+ static gd_t _bfin_gd;
+ gd = &_bfin_gd;
+ }
+
+ if (CONFIG_SYS_BD_INFO_ADDR) {
+ bd = (bd_t *) (CONFIG_SYS_BD_INFO_ADDR);
+ memset(bd, 0, GENERATED_BD_INFO_SIZE);
+ } else {
+ static bd_t _bfin_bd;
+ bd = &_bfin_bd;
+ }
+ gd->bd = bd;
+
+ bd->bi_r_version = version_string;
+ bd->bi_cpu = MK_STR(CONFIG_BFIN_CPU);
+ bd->bi_board_name = BFIN_BOARD_NAME;
+ bd->bi_vco = get_vco();
+ bd->bi_cclk = get_cclk();
+ bd->bi_sclk = get_sclk();
+ bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
+ bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
+
+ return 0;
+}
+
/*
* All attempts to come up with a "common" initialization sequence
* that works for all boards and architectures failed: some of the
@@ -201,7 +241,6 @@ extern int timer_init(void);
void board_init_f(ulong bootflag)
{
- bd_t *bd;
char buf[32];
#ifdef CONFIG_BOARD_EARLY_INIT_F
@@ -234,21 +273,8 @@ void board_init_f(ulong bootflag)
hang();
#endif
serial_early_puts("Init global data\n");
- gd = (gd_t *) (CONFIG_SYS_GBL_DATA_ADDR);
- memset((void *)gd, 0, GENERATED_GBL_DATA_SIZE);
-
- bd = (bd_t *) (CONFIG_SYS_BD_INFO_ADDR);
- gd->bd = bd;
- memset((void *)bd, 0, GENERATED_BD_INFO_SIZE);
- bd->bi_r_version = version_string;
- bd->bi_cpu = MK_STR(CONFIG_BFIN_CPU);
- bd->bi_board_name = BFIN_BOARD_NAME;
- bd->bi_vco = get_vco();
- bd->bi_cclk = get_cclk();
- bd->bi_sclk = get_sclk();
- bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
- bd->bi_memsize = CONFIG_SYS_MAX_RAM_SIZE;
+ global_board_data_init();
/* Initialize */
serial_early_puts("IRQ init\n");
@@ -276,7 +302,7 @@ void board_init_f(ulong bootflag)
if (CONFIG_MEM_SIZE) {
printf("RAM: ");
- print_size(bd->bi_memsize, "\n");
+ print_size(gd->bd->bi_memsize, "\n");
}
#if defined(CONFIG_POST)