[U-Boot] [PATCH 5/5] net: zynq_gem: Use shared wait_for_bit

[Mateusz Kulikowski]

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

 drivers/net/Kconfig    |  1 +
 drivers/net/zynq_gem.c | 35 ++---------------------------------
 2 files changed, 3 insertions(+), 33 deletions(-)

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 6905cc0..890e6c1 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -103,6 +103,7 @@ config PCH_GBE
 
 config ZYNQ_GEM
 	depends on DM_ETH && (ARCH_ZYNQ || ARCH_ZYNQMP)
+	select LIB_WAIT_BIT
 	bool "Xilinx Ethernet GEM"
 	help
 	  This MAC is presetn in Xilinx Zynq and ZynqMP SoCs.
diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index 0a41281..430c2a4 100644
--- 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>
@@ -452,38 +453,6 @@ 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;
@@ -525,7 +494,7 @@ 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 */
-- 
2.5.0