Hi,
On 10/06/2014 10:33 AM, Ian Campbell wrote:
On Sun, 2014-10-05 at 17:10 +0200, Hans de Goede wrote:
On 10/04/2014 10:35 AM, Ian Campbell wrote:
On Fri, 2014-10-03 at 17:05 +0200, Hans de Goede wrote:
sunxi SOCs can boot from both mmc0 and mmc2, detect from which one we're booting, and make that one "mmc dev 0" so that a single u-boot binary can be used for both the onboard eMMC and for external sdcards.
Where does the dependency on dev 0 being the boot device come from? Is it just the env via CONFIG_SYS_MMC_ENV_DEV?
No, the main reason why we need dev 0 to be the mmc we're actually booting from is because that is where the SPL will load the tertiary payload (the actual u-boot binary in our case) from, see:
common/spl/spl_mmc.c
Which has dev 0 hardcoded everywhere.
I see. Could you paste this bit of reasoning into the commit log please? (pretty much s/No, t/T/ on the above would do IMHO)
Done for v2.
Regards,
Hans