[U-Boot] [PATCH 2/3] am43xx_evm: add usb host boot support

Mugunthan V N mugunthanvnm at ti.com
Tue Jun 16 12:29:12 CEST 2015


On Thursday 11 June 2015 12:26 AM, Tom Rini wrote:
> On Wed, Jun 10, 2015 at 03:04:16PM +0530, Mugunthan V N wrote:
> 
>> While booting via usb host mode, ROM uses DMA to copy MLO over USB so
>> ARM internal RAM cannot be used. Adding USB host boot support by
>> introducing new config target which sets SPL_TEXT_BASE to OCMC ram.
>>
>> Signed-off-by: Mugunthan V N <mugunthanvnm at ti.com>
>> ---
>>  configs/am43xx_evm_usbhost_boot_defconfig | 5 +++++
>>  include/configs/am43xx_evm.h              | 9 +++++++++
>>  2 files changed, 14 insertions(+)
>>  create mode 100644 configs/am43xx_evm_usbhost_boot_defconfig
>>
>> diff --git a/configs/am43xx_evm_usbhost_boot_defconfig b/configs/am43xx_evm_usbhost_boot_defconfig
>> new file mode 100644
>> index 0000000..9455707
>> --- /dev/null
>> +++ b/configs/am43xx_evm_usbhost_boot_defconfig
>> @@ -0,0 +1,5 @@
>> +CONFIG_ARM=y
>> +CONFIG_TARGET_AM43XX_EVM=y
>> +CONFIG_SPL=y
>> +CONFIG_SYS_EXTRA_OPTIONS="SERIAL1,CONS_INDEX=1,NAND,USBHOST_BOOT"
>> +CONFIG_CMD_NET=y
> 
> We need to be adding USBHOST_BOOT in Kconfig and that's a bit too
> generic of a name.  It should perhaps be removed all together and only
> set CONFIG_SPL_USB_HOST_SUPPORT for this build and not include it in the
> rest.
> 

Will fix this in v2

Regards
Mugunthan V N


More information about the U-Boot mailing list