Hi Valdis On 5/29/2011 7:17 PM, valdis.kletni...@vt.edu wrote: > On Sun, 29 May 2011 11:22:01 +0200, Toralf Förster said: >> │ Symbol: STMMAC_RTC_TIMER [=n] >> │ Type : boolean >> │ Prompt: Real time clock >> │ Defined at drivers/net/stmmac/Kconfig:50 >> │ Depends on: <choice> && RTC_CLASS >> │ Location: >> │ -> Network device support (NETDEVICES [=y]) >> │ -> Ethernet (1000 Mbit) (NETDEV_1000 [=n]) >> │ -> STMicroelectronics 10/100/1000 Ethernet driver (STMMAC_ETH >> [=n]) >> │ -> STMMAC Timer optimisation (STMMAC_TIMER [=n]) >> │ -> Select Timer device (<choice> [=n]) > > Ouch. That has to be the strangest place one could *possibly* put an RTC > driver. ;) > > Giuseppe - is that RTC driver *really* an integral part of the chipset and > won't work without the Ethernet parts, or should the driver code for the RTC > live elsewhere in the tree?
No the external RTC (or the SH-4 TMU) HW can be used by the driver to handle the rx/tx process mitigating the DMA interrupts. This is not the best approach but it actually helped many people to space the CPU especially on old chips w/o dedicate timer. It's likely I will remove all this code as soon as I work on a chip with the embedded watchdog. Regards Giuseppe ------------------------------------------------------------------------------ vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
