Hi Albert, Am Dienstag 10 Mai 2011, 23:47:04 schrieben Sie: > Hi Michael, > > Sorry for the delay. Busy period for me I'm afraid. no problem ;)
> Le 09/05/2011 19:49, Michael Walle a écrit : > > Am Montag 02 Mai 2011, 10:37:41 schrieb Prafulla Wadaskar: > >>> -----Original Message----- > >>> From: Michael Walle [mailto:mich...@walle.cc] > >>> Sent: Monday, May 02, 2011 3:35 AM > >>> To: u-boot@lists.denx.de > >>> Cc: Michael Walle; Prafulla Wadaskar > >>> Subject: [PATCH] mvsata: issue hard reset on initialization > >>> > >>> Before the actual initialization do a hard reset of the SATA port and > >>> the > >>> connected device. > >> > >> Copying Albert for his ack > > > > any news on this? > > What is the reason for issuing the hard reset? Is it in case the board > was rebooted and we want the disk drives to return to a safe state? Right, if i reboot my linkstation (from linux) the ATA probing times out without the reset. Also, the user manual states (FS_88F6180_9x_6281_OpenSource.pdf, Ch 7.6.9): Device hard reset (setting the <eAtaRst> field in the EDMA Command Register (Table 342 p. 506) and device initialization are required before any attempt to access the device. > Also, why 25? I took that 25us from the original marvell uboot port (uboot 1.1.4 heavily modified by marvell, the gpl sources provided by buffalo) and from the linux sata_mv driver, both are using 25us. -- wkr michael _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
