fsl: csu: add an API to set individual device access permission

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

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

diff --git a/board/freescale/common/ns_access.c b/board/freescale/common/ns_access.c
index d8d16c5..c3d7a5e 100644 (file)
--- 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 (file)
--- 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