[U-Boot] [PATCH 3/5] fsl: csu: add an API to set individual device access permission

[Zhiqiang Hou]

From: Hou Zhiqiang <Zhiqiang.Hou at nxp.com>

Add this API to make the individual device is able to be set to
the specified permission.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou at nxp.com>
---
 board/freescale/common/ns_access.c | 34 ++++++++++++++++++++--------------
 include/fsl_csu.h                  |  1 +
 2 files changed, 21 insertions(+), 14 deletions(-)

diff --git a/board/freescale/common/ns_access.c b/board/freescale/common/ns_access.c
index d8d16c5..c3d7a5e 100644
--- a/board/freescale/common/ns_access.c
+++ b/board/freescale/common/ns_access.c
@@ -9,25 +9,31 @@
 #include <fsl_csu.h>
 #include <asm/arch/ns_access.h>
 
-static void enable_devices_ns_access(struct csu_ns_dev *ns_dev, uint32_t num)
+void set_devices_ns_access(struct csu_ns_dev *ns_dev, u16 val)
 {
 	u32 *base = (u32 *)CONFIG_SYS_FSL_CSU_ADDR;
 	u32 *reg;
-	uint32_t val;
-	int i;
+	uint32_t tmp;
 
-	for (i = 0; i < num; i++) {
-		reg = base + ns_dev[i].ind / 2;
-		val = in_be32(reg);
-		if (ns_dev[i].ind % 2 == 0) {
-			val &= 0x0000ffff;
-			val |= ns_dev[i].val << 16;
-		} else {
-			val &= 0xffff0000;
-			val |= ns_dev[i].val;
-		}
-		out_be32(reg, val);
+	reg = base + ns_dev->ind / 2;
+	tmp = in_be32(reg);
+	if (ns_dev->ind % 2 == 0) {
+		tmp &= 0x0000ffff;
+		tmp |= val << 16;
+	} else {
+		tmp &= 0xffff0000;
+		tmp |= val;
 	}
+
+	out_be32(reg, tmp);
+}
+
+static void enable_devices_ns_access(struct csu_ns_dev *ns_dev, uint32_t num)
+{
+	int i;
+
+	for (i = 0; i < num; i++)
+		set_devices_ns_access(ns_dev + i, ns_dev[i].val);
 }
 
 void enable_layerscape_ns_access(void)
diff --git a/include/fsl_csu.h b/include/fsl_csu.h
index f4d97fb..57a9985 100644
--- a/include/fsl_csu.h
+++ b/include/fsl_csu.h
@@ -30,5 +30,6 @@ struct csu_ns_dev {
 };
 
 void enable_layerscape_ns_access(void);
+void set_devices_ns_access(struct csu_ns_dev *ns_dev, u16 val);
 
 #endif
-- 
2.1.0.27.g96db324