[PATCH] ARM: stm32: Fix TAMP_SMCR BKP..PROT fields on STM32MP15xx

[Marek Vasut]

Update the TAMP_SMCR BKP..PROT fields to put first 10 registers
into protection zone 1 and next 5 into zone 2. This fixes use of
boot counter which is often in zone 3 and has to be updated from
Linux, which runs in NS.

Fixes: 73f7fc944cf6 ("ARM: stm32: Initialize TAMP_SMCR BKP..PROT fields on STM32MP15xx")
Signed-off-by: Marek Vasut <marex at denx.de>
---
Cc: Patrice Chotard <patrice.chotard at foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay at foss.st.com>
Cc: Tom Rini <trini at konsulko.com>
Cc: u-boot at lists.denx.de
Cc: uboot-stm32 at st-md-mailman.stormreply.com
---
 arch/arm/mach-stm32mp/stm32mp1/stm32mp15x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-stm32mp/stm32mp1/stm32mp15x.c b/arch/arm/mach-stm32mp/stm32mp1/stm32mp15x.c
index f096fe538d8..ca202bec8ee 100644
--- a/arch/arm/mach-stm32mp/stm32mp1/stm32mp15x.c
+++ b/arch/arm/mach-stm32mp/stm32mp1/stm32mp15x.c
@@ -148,8 +148,8 @@ static void security_init(void)
 	 */
 	clrsetbits_le32(TAMP_SMCR,
 			TAMP_SMCR_BKPRWDPROT | TAMP_SMCR_BKPWDPROT,
-			FIELD_PREP(TAMP_SMCR_BKPRWDPROT, 0x20) |
-			FIELD_PREP(TAMP_SMCR_BKPWDPROT, 0x20));
+			FIELD_PREP(TAMP_SMCR_BKPRWDPROT, 0x0A) |
+			FIELD_PREP(TAMP_SMCR_BKPWDPROT, 0x0F));
 
 	/* GPIOZ: deactivate the security */
 	writel(BIT(0), RCC_MP_AHB5ENSETR);
-- 
2.43.0