From: Peng Fan <peng.fan@nxp.com>
Date: Fri, 26 Sep 2025 16:06:18 +0000 (+0800)
Subject: firmware: scmi: use PAGE_SIZE alignment for ARM64
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b2ae10970d40a26e955d6f763cda77948d8b4f7e;p=thirdparty%2Fu-boot.git

firmware: scmi: use PAGE_SIZE alignment for ARM64

For ARMv7, the alignment could be SECTION size. But for ARM64, use
PAGE_SIZE.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---

diff --git a/drivers/firmware/scmi/smt.c b/drivers/firmware/scmi/smt.c
index 5eb78387344..237871559f0 100644
--- a/drivers/firmware/scmi/smt.c
+++ b/drivers/firmware/scmi/smt.c
@@ -62,11 +62,17 @@ int scmi_dt_get_smt_buffer(struct udevice *dev, struct scmi_smt *smt)
 		scmi_smt_enable_intr(smt, true);
 
 #ifdef CONFIG_ARM
-	if (dcache_status())
-		mmu_set_region_dcache_behaviour(ALIGN_DOWN((uintptr_t)smt->buf, MMU_SECTION_SIZE),
-						ALIGN(smt->size, MMU_SECTION_SIZE),
-						DCACHE_OFF);
+	if (dcache_status()) {
+		u32 align_size;
 
+		if (IS_ENABLED(CONFIG_ARM64))
+			align_size = PAGE_SIZE;
+		else
+			align_size = MMU_SECTION_SIZE;
+
+		mmu_set_region_dcache_behaviour(ALIGN_DOWN((uintptr_t)smt->buf, align_size),
+						ALIGN(smt->size, align_size), DCACHE_OFF);
+	}
 #endif
 
 	return 0;