From: Patrice Chotard <patrice.chot...@st.com>
The SDRAM region was setup with the wrong attributes.
It must be set to :
_ XN_EN (Execution of an instruction fetched from this region permitted)
_ O_I_WB_RD_WR_ALLOC (Outer and inner write-back, write and read allocate)
This fixes hard fault when trying to load and execute kernel linux
in this area.
Signed-off-by: Patrice Chotard <patrice.chot...@st.com>
---
arch/arm/mach-stm32/stm32h7/soc.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-stm32/stm32h7/soc.c
b/arch/arm/mach-stm32/stm32h7/soc.c
index 692dbcc..e0d3f11 100644
--- a/arch/arm/mach-stm32/stm32h7/soc.c
+++ b/arch/arm/mach-stm32/stm32h7/soc.c
@@ -30,9 +30,12 @@ int arch_cpu_init(void)
{ 0x00000000, REGION_0, XN_DIS, PRIV_RW_USR_RW,
O_I_WB_RD_WR_ALLOC, REGION_4GB },
- /* Code area, executable & strongly ordered */
- { 0xD0000000, REGION_1, XN_EN, PRIV_RW_USR_RW,
- STRONG_ORDER, REGION_8MB },
+ /*
+ * Code area, executable, Outer and inner write-back,
+ * no write allocate
+ */
+ { 0xD0000000, REGION_1, XN_DIS, PRIV_RW_USR_RW,
+ O_I_WB_RD_WR_ALLOC, REGION_32MB },
/* Device area in all H7 : Not executable */
{ 0x40000000, REGION_2, XN_EN, PRIV_RW_USR_RW,
--
1.9.1
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