apalis/colibri imx6: provide proper fdtfile value

[oweals/u-boot.git] / include / wait_bit.h

diff --git a/include/wait_bit.h b/include/wait_bit.h
index e8acfa577666005301efba3b383fddc61c2c4c2d..82e09da5ca345065d4743d74dce0b23d6f5c70ea 100644 (file)
--- a/include/wait_bit.h
+++ b/include/wait_bit.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Wait for bit with timeout and ctrlc
  *
  * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #ifndef __WAIT_BIT_H
@@ -15,60 +14,6 @@
 #include <linux/errno.h>
 #include <asm/io.h>
 
-/**
- * wait_for_bit()      waits for bit set/cleared in register
- *
- * Function polls register waiting for specific bit(s) change
- * (either 0->1 or 1->0). It can fail under two conditions:
- * - Timeout
- * - User interaction (CTRL-C)
- * Function succeeds only if all bits of masked register are set/cleared
- * (depending on set option).
- *
- * @param prefix       Prefix added to timeout messagge (message visible only
- *                     with debug enabled)
- * @param reg          Register that will be read (using readl())
- * @param mask         Bit(s) of register that must be active
- * @param set          Selects wait condition (bit set or clear)
- * @param timeout_ms   Timeout (in miliseconds)
- * @param breakable    Enables CTRL-C interruption
- * @return             0 on success, -ETIMEDOUT or -EINTR on failure
- */
-static inline int wait_for_bit(const char *prefix, const u32 *reg,
-                              const u32 mask, const bool set,
-                              const unsigned int timeout_ms,
-                              const bool breakable)
-{
-       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_ms)
-                       break;
-
-               if (breakable && ctrlc()) {
-                       puts("Abort\n");
-                       return -EINTR;
-               }
-
-               udelay(1);
-               WATCHDOG_RESET();
-       }
-
-       debug("%s: Timeout (reg=%p mask=%08x wait_set=%i)\n", prefix, reg, mask,
-             set);
-
-       return -ETIMEDOUT;
-}
-
 /**
  * wait_for_bit_x()    waits for bit set/cleared in register
  *