* Dirk Behme <dirk.behme@xxxxxxxxxxxxxx> [080509 11:08]: > Tony Lindgren wrote: >> * Koen Kooi <k.kooi@xxxxxxxxxxxxxxxxxx> [080508 11:22]: >> >>> Op 8 mei 2008, om 20:13 heeft Paul Walmsley het volgende geschreven: >>> >>>> Hello everyone, >>>> >>>> occasionally the TWL4030 driver on the 3430SDP freaks out on boot. >>>> (This >>>> is either an ES2.0 or ES2.1, not sure.) Here's a partial console >>>> log with >>>> initcall debugging enabled. This probably happens every thirty or >>>> forty >>>> boots, I would guess. The board does boot to userspace when this >>>> happens. >>>> >>>> Perhaps the TWL4030 experts out there might know what's going on? >>>> >>>> <3>i2c_omap i2c_omap.1: controller timed out >>>> <3>i2c_omap i2c_omap.1: controller timed out >>>> <3>twl4030_usb: i2c write failed, line 422 >>> >>> Looks suspiciously like the symptons in >>> >>> http://code.google.com/p/beagleboard/issues/detail?id=14 >> >> >> This also looks similar to the earlier twl4030 hangs where access >> to some domains caused twl4030 to hang. If twl4030 hangs, there's >> no way to reset it as all control is over I2C. When twl4030 hangs, >> bootloader won't be able to detect the chip either unless devices >> is power cycled (and USB cable detached). >> >> The reason earlier was that twl4030 internal clock was not being >> programmed properly, and was fixed by patch >> 0d81cf7e804c529c58d3054c1b9bdb7b3f1dec5d. > > Link for this is > > http://source.mvista.com/git/?p=linux-omap-2.6.git;a=commitdiff;h=0d81cf7e804c529c58d3054c1b9bdb7b3f1dec5d > > I don't know OMAP3 good enough yet, but which clock should we use on > OMAP3 here? It should be osc_sys_ck for 34xx. > Does it make sense to use osc_ck for OMAP3 instead of osc_sys_ck, too? > > E.g something like > > ... > if (cpu_is_omap2430() || cpu_is_omap34xx()) > osc = clk_get(NULL, "osc_ck"); > else > osc = clk_get(NULL, "osc_sys_ck"); > ... There's no osc_ck in clock34xx.h. But what I'm thinking is that maybe the MMC driver does twl4030 calls before the twl4030 clock is programmed to the right value? Tony -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
