net: zynq_gem: Use shared wait_for_bit

Use existing library function to poll bit(s).
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>

diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index 7059c84..97e30f3 100644 (file)
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -19,6 +19,7 @@
 #include <asm/io.h>
 #include <phy.h>
 #include <miiphy.h>
+#include <wait_bit.h>
 #include <watchdog.h>
 #include <asm/system.h>
 #include <asm/arch/hardware.h>
@@ -448,38 +449,6 @@ static int zynq_gem_init(struct udevice *dev)
        return 0;
 }
 
-static int wait_for_bit(const char *func, u32 *reg, const u32 mask,
-                       bool set, unsigned int timeout)
-{
-       u32 val;
-       unsigned long start = get_timer(0);
-
-       while (1) {
-               val = readl(reg);
-
-               if (!set)
-                       val = ~val;
-
-               if ((val & mask) == mask)
-                       return 0;
-
-               if (get_timer(start) > timeout)
-                       break;
-
-               if (ctrlc()) {
-                       puts("Abort\n");
-                       return -EINTR;
-               }
-
-               udelay(1);
-       }
-
-       debug("%s: Timeout (reg=%p mask=%08x wait_set=%i)\n",
-             func, reg, mask, set);
-
-       return -ETIMEDOUT;
-}
-
 static int zynq_gem_send(struct udevice *dev, void *ptr, int len)
 {
        u32 addr, size;
@@ -521,7 +490,7 @@ static int zynq_gem_send(struct udevice *dev, void *ptr, int len)
                printf("TX buffers exhausted in mid frame\n");
 
        return wait_for_bit(__func__, &regs->txsr, ZYNQ_GEM_TSR_DONE,
-                           true, 20000);
+                           true, 20000, true);
 }
 
 /* Do not check frame_recd flag in rx_status register 0x20 - just poll BD */