Hi Maxime, On Tue, Nov 8, 2016 at 2:19 AM, Maxime Ripard <maxime.rip...@free-electrons.com> wrote: > Add a driver for the Maxim DS2431 1-Wire EEPROM > > Signed-off-by: Maxime Ripard <maxime.rip...@free-electrons.com> > --- > drivers/eeprom/Kconfig | 6 ++++++ > drivers/eeprom/Makefile | 1 + > drivers/eeprom/ds2431.c | 38 ++++++++++++++++++++++++++++++++++++++ > 3 files changed, 45 insertions(+), 0 deletions(-) > create mode 100644 drivers/eeprom/ds2431.c > > diff --git a/drivers/eeprom/Kconfig b/drivers/eeprom/Kconfig > index 8dc597a8d894..98bbd67ba579 100644 > --- a/drivers/eeprom/Kconfig > +++ b/drivers/eeprom/Kconfig > @@ -12,6 +12,12 @@ config EEPROM > > if EEPROM > > +config EEPROM_DS2431 > + bool "Enable Maxim DS2431 EEPROM support" > + depends on W1 > + help > + Maxim DS2431 1-Wire EEPROM support > + > endif > > endmenu > diff --git a/drivers/eeprom/Makefile b/drivers/eeprom/Makefile > index 147dba5ec4b8..93dae0bf5d6d 100644 > --- a/drivers/eeprom/Makefile > +++ b/drivers/eeprom/Makefile > @@ -1,2 +1,3 @@ > obj-$(CONFIG_EEPROM) += eeprom-uclass.o > > +obj-$(CONFIG_EEPROM_DS2431) += ds2431.o > diff --git a/drivers/eeprom/ds2431.c b/drivers/eeprom/ds2431.c > new file mode 100644 > index 000000000000..84c1a126c339 > --- /dev/null > +++ b/drivers/eeprom/ds2431.c > @@ -0,0 +1,38 @@ > +/* > + * Copyright (c) 2015 Free Electrons > + * Copyright (c) 2015 NextThing Co > + * > + * SPDX-License-Identifier: GPL-2.0+ > + */ > + > +#include <common.h> > +#include <linux/err.h> > +#include <dm.h> > +#include <eeprom.h> > +#include <w1.h> > + > +#define W1_F2D_READ_EEPROM 0xf0 > + > +static int ds2431_read_buf(struct udevice *dev, unsigned offset, > + u8 *buf, unsigned count) > +{ > + w1_reset_select(dev); > + > + w1_write_byte(dev, W1_F2D_READ_EEPROM); > + w1_write_byte(dev, offset & 0xff); > + w1_write_byte(dev, offset >> 8); > + > + return w1_read_buf(dev, buf, count); > +} > + > +static const struct eeprom_ops ds2431_ops = { > + .read_buf = ds2431_read_buf, > +}; > + > +U_BOOT_DRIVER(ds2431) = { > + .name = "ds2431", > + .id = UCLASS_EEPROM, > + .ops = &ds2431_ops,
Do you want to add a .flags = DM_UC_FLAG_SEQ_ALIAS here? > +}; > + > +U_BOOT_W1_DEVICE(ds2431, W1_FAMILY_DS2431); > -- > git-series 0.8.11 > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot Cheers, Moritz _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot