[U-Boot] [PATCH 3/5] arm:imx-common introduce a new function to set gpr

[Peng Fan]

On 11/01/2014 03:39 PM, Li Ye-B37916 wrote:
> Hi Peng,
> 
>  
> 
> On 11/1/2014 10:19 AM, Peng Fan wrote:
>> Add a new function mxc_iomux_set_gpr_register to
>> set the iomux gpr register.
>>
>> 32-bit general purpose registers according to SoC
>> requirements for any usage.
>>
>> Signed-off-by: Peng Fan <Peng.Fan at freescale.com>
>> Signed-off-by: Ye.Li <B37916 at freescale.com>
>> Signed-off-by: Nitin Garg <nitin.garg at freescale.com>
>> ---
>>  arch/arm/imx-common/iomux-v3.c | 25 +++++++++++++++++++++++++
>>  1 file changed, 25 insertions(+)
>>
>> diff --git a/arch/arm/imx-common/iomux-v3.c b/arch/arm/imx-common/iomux-v3.c
>> index 22cd11a..b27aab8 100644
>> --- a/arch/arm/imx-common/iomux-v3.c
>> +++ b/arch/arm/imx-common/iomux-v3.c
>> @@ -77,3 +77,28 @@ void imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t const *pad_list,
>>  		p += stride;
>>  	}
>>  }
>> +
>> +/*
>> + * Configure the IOMUX General Purpose Registers.
>> + *
>> + * @group, which gpr register to configure.
>> + * @start_bit, the first bit to set
>> + * @num_bits, how many bits to set
>> + * @value, the value will be set to [start_bits...start_bits+num_bits-1]
>> + */
>> +void mxc_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);
>> +}
> This function is already in my previous patch (http://patchwork.ozlabs.org/patch/405013/). The function name is changed to imx_iomux_set_gpr_register. 
> 

oh. I missed this piece of code.
Then please ignore this patch set. Sorry for troubles.

Regards,
Peng.
>  
> 
> Best regards,
> 
> Ye Li
> 
>