From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <43D11CEA.7040104@varma-el.com> Date: Fri, 20 Jan 2006 20:24:58 +0300 From: Andrey Volkov MIME-Version: 1.0 To: roman.kuzmenko@auriga.ru Subject: Re: MPC5200, PCI, udelay(10) References: <1137745904.4631.17.camel@trust.auriga.ru> In-Reply-To: <1137745904.4631.17.camel@trust.auriga.ru> Content-Type: text/plain; charset=us-ascii Cc: Linuxppc-embedded List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Roman Kuzmenko wrote: > Hello. > > Please, help me to investigate why the delays present in the > "mpc5xxx_read_config_dword" and "mpc5xxx_write_config_dword" functions > in the "arch/ppc/kernel/mpc52xx_pci.c" file. > > I.e. > ========================== > *(volatile u32 *)MPC5xxx_PCI_CAR = 0; >> udelay(10); > return 0; > ========================== > > I was neither able to find any reference at the MPC5200 documentation > supplied by FreeScale nor reproduce any error with these lines got > removed. > > Thank you. > kernel version? -- Regards Andrey Volkov