Merge branch 'next' of git://git.denx.de/u-boot-mpc83xx

[u-boot] / drivers / video / ipu_common.c

diff --git a/drivers/video/ipu_common.c b/drivers/video/ipu_common.c
index 0f2d113a6f18d0e2ecc32eb00b2f13ad6d7454a1..8d4e9254784d8d89050f3b20bbf6ac75486fe66e 100644 (file)
--- a/drivers/video/ipu_common.c
+++ b/drivers/video/ipu_common.c
@@ -8,23 +8,7 @@
  *
  * (C) Copyright 2005-2010 Freescale Semiconductor, Inc.
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 /* #define DEBUG */
@@ -94,6 +78,7 @@ struct ipu_ch_param {
        temp1; \
 })
 
+#define IPU_SW_RST_TOUT_USEC   (10000)
 
 void clk_enable(struct clk *clk)
 {
@@ -398,11 +383,20 @@ void ipu_reset(void)
 {
        u32 *reg;
        u32 value;
+       int timeout = IPU_SW_RST_TOUT_USEC;
 
        reg = (u32 *)SRC_BASE_ADDR;
        value = __raw_readl(reg);
        value = value | SW_IPU_RST;
        __raw_writel(value, reg);
+
+       while (__raw_readl(reg) & SW_IPU_RST) {
+               udelay(1);
+               if (!(timeout--)) {
+                       printf("ipu software reset timeout\n");
+                       break;
+               }
+       };
 }
 
 /*