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-rw-r--r--arch/arm/imx-common/iomux-v3.c15
-rw-r--r--arch/arm/include/asm/imx-common/iomux-v3.h5
2 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/imx-common/iomux-v3.c b/arch/arm/imx-common/iomux-v3.c
index 22cd11a..e88e6e2 100644
--- a/arch/arm/imx-common/iomux-v3.c
+++ b/arch/arm/imx-common/iomux-v3.c
@@ -77,3 +77,18 @@ void imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t const *pad_list,
p += stride;
}
}
+
+void imx_iomux_set_gpr_register(int group, int start_bit,
+ int num_bits, int value)
+{
+ int i = 0;
+ u32 reg;
+ reg = readl(base + group * 4);
+ while (num_bits) {
+ reg &= ~(1<<(start_bit + i));
+ i++;
+ num_bits--;
+ }
+ reg |= (value << start_bit);
+ writel(reg, base + group * 4);
+}
diff --git a/arch/arm/include/asm/imx-common/iomux-v3.h b/arch/arm/include/asm/imx-common/iomux-v3.h
index a8ca49c..e0a49be 100644
--- a/arch/arm/include/asm/imx-common/iomux-v3.h
+++ b/arch/arm/include/asm/imx-common/iomux-v3.h
@@ -182,6 +182,11 @@ typedef u64 iomux_v3_cfg_t;
void imx_iomux_v3_setup_pad(iomux_v3_cfg_t pad);
void imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t const *pad_list,
unsigned count);
+/*
+* Set bits for general purpose registers
+*/
+void imx_iomux_set_gpr_register(int group, int start_bit,
+ int num_bits, int value);
/* macros for declaring and using pinmux array */
#if defined(CONFIG_MX6QDL)