* [U-Boot] mxc_i2c driver
@ 2014-01-14 21:26 York Sun
2014-01-14 23:25 ` Troy Kisky
0 siblings, 1 reply; 3+ messages in thread
From: York Sun @ 2014-01-14 21:26 UTC (permalink / raw)
To: u-boot
Troy,
I am trying to use mxc_i2c driver with multiple buses. I didn't figure out how
the bases are set. Can you shed some light on this?
Thanks,
York
^ permalink raw reply [flat|nested] 3+ messages in thread
* [U-Boot] mxc_i2c driver
2014-01-14 21:26 [U-Boot] mxc_i2c driver York Sun
@ 2014-01-14 23:25 ` Troy Kisky
2014-01-14 23:27 ` York Sun
0 siblings, 1 reply; 3+ messages in thread
From: Troy Kisky @ 2014-01-14 23:25 UTC (permalink / raw)
To: u-boot
On 1/14/2014 2:26 PM, York Sun wrote:
> Troy,
>
> I am trying to use mxc_i2c driver with multiple buses. I didn't figure out how
> the bases are set. Can you shed some light on this?
>
> Thanks,
>
> York
>
see board/boundary/nitrogen6x/nitrogen6x.c
It calls
setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0);
setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
which is in
arch/arm/imx-common/i2c-mxv7.c
This file has an array of base addresses
static void * const i2c_bases[] = {
(void *)I2C1_BASE_ADDR,
(void *)I2C2_BASE_ADDR,
#ifdef I2C3_BASE_ADDR
(void *)I2C3_BASE_ADDR,
#endif
};
^ permalink raw reply [flat|nested] 3+ messages in thread
* [U-Boot] mxc_i2c driver
2014-01-14 23:25 ` Troy Kisky
@ 2014-01-14 23:27 ` York Sun
0 siblings, 0 replies; 3+ messages in thread
From: York Sun @ 2014-01-14 23:27 UTC (permalink / raw)
To: u-boot
On 01/14/2014 03:25 PM, Troy Kisky wrote:
> On 1/14/2014 2:26 PM, York Sun wrote:
>> Troy,
>>
>> I am trying to use mxc_i2c driver with multiple buses. I didn't figure out how
>> the bases are set. Can you shed some light on this?
>>
>> Thanks,
>>
>> York
>>
> see board/boundary/nitrogen6x/nitrogen6x.c
>
> It calls
> setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0);
> setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
> setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
> which is in
> arch/arm/imx-common/i2c-mxv7.c
>
> This file has an array of base addresses
>
> static void * const i2c_bases[] = {
> (void *)I2C1_BASE_ADDR,
> (void *)I2C2_BASE_ADDR,
> #ifdef I2C3_BASE_ADDR
> (void *)I2C3_BASE_ADDR,
> #endif
> };
>
Great! Thanks.
York
^ permalink raw reply [flat|nested] 3+ messages in thread
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2014-01-14 21:26 [U-Boot] mxc_i2c driver York Sun
2014-01-14 23:25 ` Troy Kisky
2014-01-14 23:27 ` York Sun
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