From 02f5d82052939c7bc004c0ac13544f87eac178a3 Mon Sep 17 00:00:00 2001
From: Yann Gautier <yann.gautier@st.com>
Date: Thu, 11 Jul 2019 10:45:09 +0200
Subject: [PATCH] stm32mp1: sp_min: initialize MMU and cache earlier
This change enhances performance and security in BL32 stage.
Change-Id: I64df5995fc6b04f6cf42d6a00a6d3d0f602b5407
Signed-off-by: Yann Gautier <yann.gautier@st.com>
---
plat/st/stm32mp1/sp_min/sp_min_setup.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/plat/st/stm32mp1/sp_min/sp_min_setup.c b/plat/st/stm32mp1/sp_min/sp_min_setup.c
index 5ad219085..e54249f74 100644
--- a/plat/st/stm32mp1/sp_min/sp_min_setup.c
+++ b/plat/st/stm32mp1/sp_min/sp_min_setup.c
@@ -89,6 +89,12 @@ void sp_min_early_platform_setup2(u_register_t arg0, u_register_t arg1,
/* Imprecise aborts can be masked in NonSecure */
write_scr(read_scr() | SCR_AW_BIT);
+ mmap_add_region(BL_CODE_BASE, BL_CODE_BASE,
+ BL_CODE_END - BL_CODE_BASE,
+ MT_CODE | MT_SECURE);
+
+ configure_mmu();
+
assert(params_from_bl2 != NULL);
assert(params_from_bl2->h.type == PARAM_BL_PARAMS);
assert(params_from_bl2->h.version >= VERSION_2);
@@ -136,12 +142,6 @@ void sp_min_early_platform_setup2(u_register_t arg0, u_register_t arg1,
******************************************************************************/
void sp_min_platform_setup(void)
{
- mmap_add_region(BL_CODE_BASE, BL_CODE_BASE,
- BL_CODE_END - BL_CODE_BASE,
- MT_CODE | MT_SECURE);
-
- configure_mmu();
-
/* Initialize tzc400 after DDR initialization */
stm32mp1_security_setup();
--
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