From mboxrd@z Thu Jan 1 00:00:00 1970 From: Qianyu Gong Date: Mon, 28 Mar 2016 08:11:13 +0000 Subject: [U-Boot] [PATCH] armv8/fsl-layerscape: add IFC fixup for LS1043A with QSPI enabled In-Reply-To: <1456135520-48373-1-git-send-email-Qianyu.Gong@nxp.com> References: <1456135520-48373-1-git-send-email-Qianyu.Gong@nxp.com> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi all, Any comments about this patch? Thanks! Regards, Qianyu > -----Original Message----- > From: Gong Qianyu [mailto:Qianyu.Gong at nxp.com] > Sent: Monday, February 22, 2016 6:05 PM > To: u-boot at lists.denx.de; york sun ; oss at buserror.net > Cc: Mingkai Hu ; Qianyu Gong > Subject: [PATCH] armv8/fsl-layerscape: add IFC fixup for LS1043A with QSPI > enabled > > QSPI and IFC are pin-multiplexed on LS1043A. So if QSPI is enabled, > IFC should be disabled. > But just disable IFC driver in LS1043A Linux is not enough because > mdio-mux will access IFC address space -- actually it accesses FPGA > which is connected to IFC CS3. So disable the whole IFC node in > Linux device tree. > > Signed-off-by: Gong Qianyu > > diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c b/arch/arm/cpu/armv8/fsl- > layerscape/fdt.c > index 4e4861d..5bb3048 100644 > --- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c > +++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c > @@ -204,4 +204,11 @@ void ft_cpu_setup(void *blob, bd_t *bd) > #ifdef CONFIG_FSL_LSCH3 > fdt_fixup_smmu(blob); > #endif > + > +#ifdef CONFIG_LS1043A > +#ifdef CONFIG_FSL_QSPI > + do_fixup_by_compat(blob, "fsl,ifc", > + "status", "disabled", 8 + 1, 1); > +#endif > +#endif > } > -- > 2.1.0.27.g96db324