Update hisilicon drivers to not rely on undefined overflow behaviour
This consists of ensuring that the left operand of each shift is
unsigned when the operation might overflow into the sign bit.
Change-Id: I67984b6c48c08af61e95a4dbd18047e2c3151f9a
Signed-off-by: Justin Chadwell <justin.chadwell@arm.com>
diff --git a/plat/hisilicon/hikey960/include/hi3660_crg.h b/plat/hisilicon/hikey960/include/hi3660_crg.h
index ec587aa..eb5a6c5 100644
--- a/plat/hisilicon/hikey960/include/hi3660_crg.h
+++ b/plat/hisilicon/hikey960/include/hi3660_crg.h
@@ -11,7 +11,7 @@
#define CRG_PEREN0_REG (CRG_REG_BASE + 0x000)
#define CRG_PERDIS0_REG (CRG_REG_BASE + 0x004)
#define CRG_PERSTAT0_REG (CRG_REG_BASE + 0x008)
-#define PEREN0_GT_CLK_AOMM (1 << 31)
+#define PEREN0_GT_CLK_AOMM (1U << 31)
#define CRG_PEREN1_REG (CRG_REG_BASE + 0x010)
#define CRG_PERDIS1_REG (CRG_REG_BASE + 0x014)
@@ -62,7 +62,7 @@
#define CRG_PERRSTSTAT5_REG (CRG_REG_BASE + 0x0A4)
/* bit fields in CRG_PERI */
-#define PERI_PCLK_PCTRL_BIT (1 << 31)
+#define PERI_PCLK_PCTRL_BIT (1U << 31)
#define PERI_TIMER12_BIT (1 << 25)
#define PERI_TIMER11_BIT (1 << 24)
#define PERI_TIMER10_BIT (1 << 23)