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path: root/drivers/misc/fsl_law.c
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Diffstat (limited to 'drivers/misc/fsl_law.c')
-rw-r--r--drivers/misc/fsl_law.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/misc/fsl_law.c b/drivers/misc/fsl_law.c
index d7d6c40..48ece4f 100644
--- a/drivers/misc/fsl_law.c
+++ b/drivers/misc/fsl_law.c
@@ -70,6 +70,25 @@ int set_next_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id)
return idx;
}
+int set_last_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id)
+{
+ u32 idx;
+
+ /* we have no LAWs free */
+ if (gd->used_laws == -1)
+ return -1;
+
+ /* grab the last free law */
+ idx = __ilog2(~(gd->used_laws));
+
+ if (idx >= FSL_HW_NUM_LAWS)
+ return -1;
+
+ set_law(idx, addr, sz, id);
+
+ return idx;
+}
+
void disable_law(u8 idx)
{
volatile u32 *base = (volatile u32 *)(CFG_IMMR + 0xc08);