diff options
Diffstat (limited to 'arch/arm/plat-mxc/iomux-v3.c')
| -rw-r--r-- | arch/arm/plat-mxc/iomux-v3.c | 17 |
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; |