On Thu, May 05, 2016 at 08:52:10AM -0500, Russ Dill wrote: > The current delays in the DDR initialization routines for am33xx > architectures are sometimes not running long enough leading to DDR > init errors. On am437x, this shows up as an L3 NOC error after the > kernel boots. This is due to the timer not being initialized > properly, but instead still containing the timer init values from > the boot ROM which cause timers to expire in 1/4th the time > required. > > timer_init is typically not called until board_init_r, however on > am33xx/am43xx udelay is required in sdram_init which is called > from board_init_f, so a call to timer_init is required earlier. > > Note that this issue introduced in v2015.01 by: > > b352dde "am33xx: Drop timer_init call from s_init". > > Although this could instead fixed by reverting said commit, it > would cause timer_init to be called twice in both SPL and non-SPL > cases. This gives a little more fine grained control and also > matches what is being done on omap-command and fsl-layerscape. > > Signed-off-by: Russ Dill <[email protected]>
Applied to u-boot/master, thanks! -- Tom
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