ARM: 8592/1: cache-l2x0.c: Replace magic numbers

Replace magic numbers used for L310 Prefetch Control Register

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 4 insertions, 2 deletions

diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index cc12905ae6f8..7e624872bd6f 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -710,8 +710,10 @@ static void __init l2c310_fixup(void __iomem *base, u32 cache_id,
             revision < L310_CACHE_ID_RTL_R3P2) {
                 u32 val = l2x0_saved_regs.prefetch_ctrl;
                 /* I don't think bit23 is required here... but iMX6 does so */
-                if (val & (BIT(30) | BIT(23))) {
-                        val &= ~(BIT(30) | BIT(23));
+                if (val & (L310_PREFETCH_CTRL_DBL_LINEFILL |
+                           L310_PREFETCH_CTRL_DBL_LINEFILL_INCR)) {
+                        val &= ~(L310_PREFETCH_CTRL_DBL_LINEFILL |
+                                 L310_PREFETCH_CTRL_DBL_LINEFILL_INCR);
                         l2x0_saved_regs.prefetch_ctrl = val;
                         errata[n++] = "752271";
                 }