Noncached area at present is being initialized to random space after malloc
area. It works in most the cases as it goes to stack area & stack is not
overwriting it being far from it.
Signed-off-by: Vikas Manocha <vikas.mano...@st.com>
---
Changes in v2: added blank line before return
common/board_f.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/common/board_f.c b/common/board_f.c
index 59745d5..58529d2 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -439,12 +439,29 @@ static int reserve_uboot(void)
return 0;
}
+#ifdef CONFIG_SYS_NONCACHED_MEMORY
+static int reserve_noncached(void)
+{
+ /* round down to SECTION SIZE (typicaly 1MB) limit */
+ gd->start_addr_sp &= ~(MMU_SECTION_SIZE - 1);
+ gd->start_addr_sp -= CONFIG_SYS_NONCACHED_MEMORY;
+ debug("Reserving %dM for noncached_alloc() at: %08lx\n",
+ CONFIG_SYS_NONCACHED_MEMORY >> 20, gd->start_addr_sp);
+
+ return 0;
+}
+#endif
+
/* reserve memory for malloc() area */
static int reserve_malloc(void)
{
gd->start_addr_sp = gd->start_addr_sp - TOTAL_MALLOC_LEN;
debug("Reserving %dk for malloc() at: %08lx\n",
TOTAL_MALLOC_LEN >> 10, gd->start_addr_sp);
+#ifdef CONFIG_SYS_NONCACHED_MEMORY
+ reserve_noncached();
+#endif
+
return 0;
}
--
2.7.4
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
