On 14 February 2017 at 18:01, Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx> wrote: > From: Hu Ziji <huziji@xxxxxxxxxxx> > > Add Xenon eMMC/SD/SDIO host controller core functionality. > Add Xenon specific initialization process. > Add Xenon specific mmc_host_ops APIs. > Add Xenon specific register definitions. > > Add CONFIG_MMC_SDHCI_XENON support in drivers/mmc/host/Kconfig. > > Marvell Xenon SDHC conforms to SD Physical Layer Specification > Version 3.01 and is designed according to the guidelines provided > in the SD Host Controller Standard Specification Version 3.00. > > Signed-off-by: Hu Ziji <huziji@xxxxxxxxxxx> > Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx> > --- > drivers/mmc/host/Kconfig | 9 +- > drivers/mmc/host/Makefile | 3 +- > drivers/mmc/host/sdhci-xenon.c | 602 ++++++++++++++++++++++++++++++++++- > drivers/mmc/host/sdhci-xenon.h | 70 ++++- > 4 files changed, 684 insertions(+) > create mode 100644 drivers/mmc/host/sdhci-xenon.c > create mode 100644 drivers/mmc/host/sdhci-xenon.h > > diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig > index 2eb97014dc3f..1c1a88bfbdad 100644 > --- a/drivers/mmc/host/Kconfig > +++ b/drivers/mmc/host/Kconfig > @@ -819,3 +819,12 @@ config MMC_SDHCI_BRCMSTB > Broadcom STB SoCs. > > If unsure, say Y. > + > +config MMC_SDHCI_XENON > + tristate "Marvell Xenon eMMC/SD/SDIO SDHCI driver" > + depends on MMC_SDHCI_PLTFM > + help > + This selects Marvell Xenon eMMC/SD/SDIO SDHCI. > + If you have a machine with integrated Marvell Xenon SDHC IP, /s/SDHC/SDHCI > + say Y or M here. > + If unsure, say N. > diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile > index ccc9c4cba154..b0a2ab4b256e 100644 > --- a/drivers/mmc/host/Makefile > +++ b/drivers/mmc/host/Makefile > @@ -82,3 +82,6 @@ obj-$(CONFIG_MMC_SDHCI_BRCMSTB) += sdhci-brcmstb.o > ifeq ($(CONFIG_CB710_DEBUG),y) > CFLAGS-cb710-mmc += -DDEBUG > endif > + > +obj-$(CONFIG_MMC_SDHCI_XENON) += sdhci-xenon-driver.o > +sdhci-xenon-driver-y += sdhci-xenon.o Why not only this: obj-$(CONFIG_MMC_SDHCI_XENON) += sdhci-xenon.o > diff --git a/drivers/mmc/host/sdhci-xenon.c b/drivers/mmc/host/sdhci-xenon.c > new file mode 100644 > index 000000000000..e633f803907a > --- /dev/null > +++ b/drivers/mmc/host/sdhci-xenon.c > @@ -0,0 +1,602 @@ > +/* > + * Driver for Marvell Xenon SDHC as a platform device > + * > + * Copyright (C) 2016 Marvell, All Rights Reserved. > + * > + * Author: Hu Ziji <huziji@xxxxxxxxxxx> > + * Date: 2016-8-24 > + * > + * This program is free software; you can redistribute it and/or > + * modify it under the terms of the GNU General Public License as > + * published by the Free Software Foundation version 2. > + * > + * Inspired by Jisheng Zhang <jszhang@xxxxxxxxxxx> > + * Special thanks to Video BG4 project team. > + */ > + > +#include <linux/delay.h> > +#include <linux/module.h> > +#include <linux/of.h> > + > +#include "sdhci-pltfm.h" > +#include "sdhci-xenon.h" > + > +static int enable_xenon_internal_clk(struct sdhci_host *host) [...] > +/* Set SDCLK-off-while-idle */ > +static void xenon_set_sdclk_off_idle(struct sdhci_host *host, > + unsigned char sdhc_id, bool enable) [...] > +/* Recover the Register Setting cleared during SOFTWARE_RESET_ALL */ > +static void sdhci_xenon_reset_exit(struct sdhci_host *host, > + unsigned char sdhc_id, u8 mask) [...] ff --git a/drivers/mmc/host/sdhci-xenon.h b/drivers/mmc/host/sdhci-xenon.h > new file mode 100644 > index 000000000000..69de711db9eb > --- /dev/null > +++ b/drivers/mmc/host/sdhci-xenon.h You should probably put all this in the c-file instead. That is how most other sdhci variants does it. [...] Overall this looks good to me, however I think Adrian needs to have a quick look as well. One additional very minor nitpick. Perhaps you can align on the function names prefix, as those currently varies between "whatever", "xenon_" and "sdhci_xenon_". Kind regards Uffe -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
