imx: fsl_sec: preprocessor casting issue with addresses involving math
authorUtkarsh Gupta <utkarsh.gupta@nxp.com>
Thu, 15 Jun 2023 10:09:27 +0000 (18:09 +0800)
committerStefano Babic <sbabic@denx.de>
Thu, 13 Jul 2023 09:29:40 +0000 (11:29 +0200)
The sec_in32 preprocessor is defined as follows in include/fsl_sec.h file:
When address "a" is calculated using math for ex: addition of base address and
an offset, then casting is applied only to the first address which in this
example is base address.

caam_ccbvid_reg = sec_in32(CONFIG_SYS_FSL_SEC_ADDR + CAAM_CCBVID_OFFSET)
resolves to:
caam_ccbvid_reg = in_le32((ulong *)(ulong)CONFIG_SYS_FSL_SEC_ADDR +
 CAAM_CCBVID_OFFSET)
instead it should resolve to:
caam_ccbvid_reg = in_le32((ulong *)(ulong)(CONFIG_SYS_FSL_SEC_ADDR +
 CAAM_CCBVID_OFFSET))

Thus add parenthesis around the address "a" so that however the address is
calculated, the casting is applied to the final calculated address.

Reviewed-by: Horia Geanta <horia.geanta@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Utkarsh Gupta <utkarsh.gupta@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
include/fsl_sec.h

index d8861d1..9dad1d1 100644 (file)
@@ -13,8 +13,8 @@
 #include <asm/io.h>
 
 #ifdef CONFIG_SYS_FSL_SEC_LE
-#define sec_in32(a)       in_le32((ulong *)(ulong)a)
-#define sec_out32(a, v)   out_le32((ulong *)(ulong)a, v)
+#define sec_in32(a)       in_le32((ulong *)(ulong)(a))
+#define sec_out32(a, v)   out_le32((ulong *)(ulong)(a), v)
 #define sec_in16(a)       in_le16(a)
 #define sec_clrbits32     clrbits_le32
 #define sec_setbits32     setbits_le32