[U-Boot] [PATCH v1 2/2] imx: use BOOT_DEVICE_BOARD instead of UART

[Sébastien Szymanski]

Hello,

> On 25 Aug 2017, at 13:33, Stefano Babic <sbabic at denx.de> wrote:
> 
> On 16/08/2017 02:49, Stefan Agner wrote:
>> From: Stefan Agner <stefan.agner at toradex.com>
>> 
>> i.MX 6 serial downloader is not necessarily booting via UART but can
>> also boot from USB. In fact only some i.MX chips have serial
>> downloader support via UART (e.g. 6UL/ULL and Vybrid) but all of
>> them have serial downloader support via USB. Use the more appropriate
>> BOOT_DEVICE_BOARD define which is used for ROM provided recovery
>> mechanisms in general.
>> 
>> Signed-off-by: Stefan Agner <stefan.agner at toradex.com>
>> ---
>> 
>> arch/arm/mach-imx/spl.c | 4 ++--
>> 1 file changed, 2 insertions(+), 2 deletions(-)
>> 
>> diff --git a/arch/arm/mach-imx/spl.c b/arch/arm/mach-imx/spl.c
>> index 836b334fa9..bcd1033fdb 100644
>> --- a/arch/arm/mach-imx/spl.c
>> +++ b/arch/arm/mach-imx/spl.c
>> @@ -27,7 +27,7 @@ u32 spl_boot_device(void)
>> 	 * BOOT_MODE - see IMX6DQRM Table 8-1
>> 	 */
>> 	if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */
>> -		return BOOT_DEVICE_UART;

Returning BOOT_DEVICE_UART here makes the SPL to load U-Boot from the debug UART using a ymodem transfer when enabled with CONFIG_SPL_YMODEM_SUPPORT like it is on the OPOS6ULDev board. This is now broken.

Regards,

>> +		return BOOT_DEVICE_BOARD;
>> 
>> 	/* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */
>> 	switch ((reg & IMX6_BMODE_MASK) >> IMX6_BMODE_SHIFT) {
>> @@ -43,7 +43,7 @@ u32 spl_boot_device(void)
>> 		}
>> 	/* Reserved: Used to force Serial Downloader */
>> 	case IMX6_BMODE_RESERVED:
>> -		return BOOT_DEVICE_UART;
>> +		return BOOT_DEVICE_BOARD;
>> 	/* SATA: See 8.5.4, Table 8-20 */
>> 	case IMX6_BMODE_SATA:
>> 		return BOOT_DEVICE_SATA;
>> 
> 
> Applied to u-boot-imx, -master, thanks !
> 
> Best regards,
> Stefano Babic
> 
> 
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