[U-Boot] [PATCH v5 4/9] board: ti: dra7xx-evm: turn on USB clocks in late init stage

[Jean-Jacques Hiblot]

On 04/05/2018 16:38, Marek Vasut wrote:
> On 05/04/2018 04:34 PM, Jean-Jacques Hiblot wrote:
>> For USB ports that use the Driver Model, turn on the clocks during the
>> late init stage.
>>
>> Signed-off-by: Jean-Jacques Hiblot <jjhiblot at ti.com>
>> Reviewed-by: Tom Rini <trini at konsulko.com>
>> ---
>>
>> Changes in v5: None
>> Changes in v4: None
>> Changes in v3: None
>> Changes in v2: None
>>
>>   board/ti/dra7xx/evm.c | 19 +++++++++++++++++++
>>   1 file changed, 19 insertions(+)
>>
>> diff --git a/board/ti/dra7xx/evm.c b/board/ti/dra7xx/evm.c
>> index 06f061c..c1e1b8e 100644
>> --- a/board/ti/dra7xx/evm.c
>> +++ b/board/ti/dra7xx/evm.c
>> @@ -647,6 +647,19 @@ int dram_init_banksize(void)
>>   	return 0;
>>   }
>>   
>> +#if CONFIG_IS_ENABLED(DM_USB) && CONFIG_IS_ENABLED(OF_CONTROL)
>> +static int device_okay(const char *path)
>> +{
>> +	int node;
>> +
>> +	node = fdt_path_offset(gd->fdt_blob, path);
>> +	if (node < 0)
>> +		return 0;
>> +
>> +	return fdtdec_get_is_enabled(gd->fdt_blob, node);
>> +}
>> +#endif
>> +
>>   int board_late_init(void)
>>   {
>>   #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
>> @@ -686,6 +699,12 @@ int board_late_init(void)
>>   	if (board_is_dra71x_evm())
>>   		palmas_i2c_write_u8(LP873X_I2C_SLAVE_ADDR, 0x9, 0x7);
>>   #endif
>> +#if CONFIG_IS_ENABLED(DM_USB) && CONFIG_IS_ENABLED(OF_CONTROL)
>> +	if (device_okay("/ocp/omap_dwc3_1 at 48880000"))
>> +		enable_usb_clocks(0);
>> +	if (device_okay("/ocp/omap_dwc3_2 at 488c0000"))
>> +		enable_usb_clocks(1);
>> +#endif
> Shouldnt the driver turn this on?
AFAIK there is no clock driver for the OMAP. So we have to do it before 
the driver is probed.

JJ
>