Hi Dinh, On 10/15/2013 04:47 AM, [email protected] wrote: > From: Dinh Nguyen <[email protected]> > > Add functionality in the System Manager to set the SDR settings for the > SD/MMC IP. > > Signed-off-by: Dinh Nguyen <[email protected]> > Cc: Pavel Machek <[email protected]> > CC: Arnd Bergmann <[email protected]> > CC: Olof Johansson <[email protected]> > Cc: Rob Herring <[email protected]> > Cc: Pawel Moll <[email protected]> > Cc: Mark Rutland <[email protected]> > Cc: Stephen Warren <[email protected]> > Cc: Ian Campbell <[email protected]> > Cc: Chris Ball <[email protected]> > Cc: Jaehoon Chung <[email protected]> > Cc: Seungwon Jeon <[email protected]> > Cc: [email protected] > Cc: [email protected] > CC: [email protected] > > --- > v2: > - Have socfpga_sysmgr_set_dwmmc_drvsel_smpsel() take in the SDR settings > directly so that it does not have to walk the DTB. > --- > arch/arm/mach-socfpga/Makefile | 2 +- > arch/arm/mach-socfpga/core.h | 6 ++++++ > arch/arm/mach-socfpga/system_mgr.c | 28 ++++++++++++++++++++++++++++ > 3 files changed, 35 insertions(+), 1 deletion(-) > create mode 100644 arch/arm/mach-socfpga/system_mgr.c > > diff --git a/arch/arm/mach-socfpga/Makefile b/arch/arm/mach-socfpga/Makefile > index 6dd7a93..e4ff8b9 100644 > --- a/arch/arm/mach-socfpga/Makefile > +++ b/arch/arm/mach-socfpga/Makefile > @@ -2,5 +2,5 @@ > # Makefile for the linux kernel. > # > > -obj-y := socfpga.o > +obj-y := socfpga.o system_mgr.o > obj-$(CONFIG_SMP) += headsmp.o platsmp.o > diff --git a/arch/arm/mach-socfpga/core.h b/arch/arm/mach-socfpga/core.h > index 572b8f7..b05fa6a 100644 > --- a/arch/arm/mach-socfpga/core.h > +++ b/arch/arm/mach-socfpga/core.h > @@ -44,4 +44,10 @@ extern unsigned long cpu1start_addr; > > #define SOCFPGA_SCU_VIRT_BASE 0xfffec000 > > +/* SDMMC Group for System Manager defines */ > +#define SYSMGR_SDMMCGRP_CTRL_OFFSET 0x108 > +#define DRV_CLK_PHASE_SHIFT_SEL_MASK 0x7 I didn't see where this define is used. When do this use?
Best Regards, Jaehoon Chung > +#define SYSMGR_SDMMC_CTRL_SET(smplsel, drvsel) \ > + ((((smplsel) & 0x7) << 3) | (((drvsel) & 0x7) << 0)) > + > #endif > diff --git a/arch/arm/mach-socfpga/system_mgr.c > b/arch/arm/mach-socfpga/system_mgr.c > new file mode 100644 > index 0000000..9fdce1d > --- /dev/null > +++ b/arch/arm/mach-socfpga/system_mgr.c > @@ -0,0 +1,28 @@ > +/* > + * Copyright Altera Corporation (C) 2013. All Rights Reserved. > + * > + * This program is free software; you can redistribute it and/or modify it > + * under the terms and conditions of the GNU General Public License, > + * version 2, as published by the Free Software Foundation. > + * > + * This program is distributed in the hope it will be useful, but WITHOUT > + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or > + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for > + * more details. > + * > + * You should have received a copy of the GNU General Public License along > with > + * this program. If not, see <http://www.gnu.org/licenses/>. > + */ > +#include <linux/of_platform.h> > +#include <asm/mach/map.h> > + > +#include "core.h" > + > +void socfpga_sysmgr_set_dwmmc_drvsel_smpsel(u32 drvsel, u32 smplsel) > +{ > + u32 hs_timing; > + > + hs_timing = SYSMGR_SDMMC_CTRL_SET(smplsel, drvsel); > + writel(hs_timing, sys_manager_base_addr + SYSMGR_SDMMCGRP_CTRL_OFFSET); > +} > +EXPORT_SYMBOL(socfpga_sysmgr_set_dwmmc_drvsel_smpsel); > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
