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Diffstat (limited to 'arch/arm/plat-mxc/iomux-v3.c')
-rw-r--r--arch/arm/plat-mxc/iomux-v3.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/arm/plat-mxc/iomux-v3.c b/arch/arm/plat-mxc/iomux-v3.c
index 99a9cdb9d6be..612d56f41eba 100644
--- a/arch/arm/plat-mxc/iomux-v3.c
+++ b/arch/arm/plat-mxc/iomux-v3.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2004-2006 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2004-2011 Freescale Semiconductor, Inc.
* Copyright (C) 2008 by Sascha Hauer <kernel@pengutronix.de>
* Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH,
* <armlinux@phytec.de>
@@ -72,6 +72,21 @@ int mxc_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t *pad_list, unsigned count)
}
EXPORT_SYMBOL(mxc_iomux_v3_setup_multiple_pads);
+void mxc_iomux_set_gpr_register(int group, int start_bit, int num_bits, int value)
+{
+ int i = 0;
+ u32 reg;
+ reg = __raw_readl(base + group * 4);
+ while (num_bits) {
+ reg &= ~(1<<(start_bit + i));
+ i++;
+ num_bits -= i;
+ }
+ reg |= (value << start_bit);
+ __raw_writel(reg, base + group * 4);
+}
+EXPORT_SYMBOL(mxc_iomux_set_gpr_register);
+
void mxc_iomux_v3_init(void __iomem *iomux_v3_base)
{
base = iomux_v3_base;