Merge branch 'master' of git://git.denx.de/u-boot-arm

[karo-tx-uboot.git] / arch / arm / cpu / armv7 / at91 / clock.c

diff --git a/arch/arm/cpu/armv7/at91/clock.c b/arch/arm/cpu/armv7/at91/clock.c
index 624b52cc31200ec8f0b8a689787269562f867618..36ed4a639446597085384023e3631eec24d64d00 100644 (file)
--- a/arch/arm/cpu/armv7/at91/clock.c
+++ b/arch/arm/cpu/armv7/at91/clock.c
@@ -6,10 +6,7 @@
  * Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
  * Copyright (C) 2013 Bo Shen <voice.shen@atmel.com>
  *
- * 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.
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
@@ -117,9 +114,25 @@ int at91_clock_init(unsigned long main_clock)
 void at91_periph_clk_enable(int id)
 {
        struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+       u32 regval;
 
-       if (id > 31)
-               writel(1 << (id - 32), &pmc->pcer1);
-       else
-               writel(1 << id, &pmc->pcer);
+       if (id > AT91_PMC_PCR_PID_MASK)
+               return;
+
+       regval = AT91_PMC_PCR_EN | AT91_PMC_PCR_CMD_WRITE | id;
+
+       writel(regval, &pmc->pcr);
+}
+
+void at91_periph_clk_disable(int id)
+{
+       struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+       u32 regval;
+
+       if (id > AT91_PMC_PCR_PID_MASK)
+               return;
+
+       regval = AT91_PMC_PCR_CMD_WRITE | id;
+
+       writel(regval, &pmc->pcr);
 }