On Mon, Aug 7, 2017 at 2:47 PM, Zhong Kaihua <zhongkaihua@xxxxxxxxxx> wrote: > From: Kaihua Zhong <zhongkaihua@xxxxxxxxxx> > > Add mailbox driver for Hi3660. > > Signed-off-by: Leo Yan <leo.yan@xxxxxxxxxx> > Signed-off-by: Ruyi Wang <wangruyi@xxxxxxxxxx> > Tested-by: Kaihua Zhong <zhongkaihua@xxxxxxxxxx> > > --- > drivers/mailbox/Kconfig | 6 + > drivers/mailbox/Makefile | 2 + > drivers/mailbox/hi3660-mailbox.c | 688 +++++++++++++++++++++++++++++++++++++++ > 3 files changed, 696 insertions(+) > create mode 100644 drivers/mailbox/hi3660-mailbox.c > > diff --git a/drivers/mailbox/Kconfig b/drivers/mailbox/Kconfig > index ee1a3d9..778ba85 100644 > --- a/drivers/mailbox/Kconfig > +++ b/drivers/mailbox/Kconfig > @@ -116,6 +116,12 @@ config HI6220_MBOX > between application processors and MCU. Say Y here if you want to > build Hi6220 mailbox controller driver. > > +config HI3660_MBOX > + tristate "Hi3660 Mailbox" > + depends on ARCH_HISI > + help > + Mailbox implementation for Hi3660. > + > config MAILBOX_TEST > tristate "Mailbox Test Client" > depends on OF > diff --git a/drivers/mailbox/Makefile b/drivers/mailbox/Makefile > index e2bcb03..f1c2fc4 100644 > --- a/drivers/mailbox/Makefile > +++ b/drivers/mailbox/Makefile > @@ -28,6 +28,8 @@ obj-$(CONFIG_XGENE_SLIMPRO_MBOX) += mailbox-xgene-slimpro.o > > obj-$(CONFIG_HI6220_MBOX) += hi6220-mailbox.o > > +obj-$(CONFIG_HI3660_MBOX) += hi3660-mailbox.o > + > obj-$(CONFIG_BCM_PDC_MBOX) += bcm-pdc-mailbox.o > > obj-$(CONFIG_BCM_FLEXRM_MBOX) += bcm-flexrm-mailbox.o > diff --git a/drivers/mailbox/hi3660-mailbox.c b/drivers/mailbox/hi3660-mailbox.c > new file mode 100644 > index 0000000..14f469d > --- /dev/null > +++ b/drivers/mailbox/hi3660-mailbox.c > @@ -0,0 +1,688 @@ > +/* > + * Hisilicon's Hi3660 mailbox driver > + * > + * Copyright (c) 2017 Hisilicon Limited. > + * Copyright (c) 2017 Linaro Limited. > + * > + * Author: Leo Yan <leo.yan@xxxxxxxxxx> > + * > + * 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 of the License. > + * > + * This program is distributed in the hope that 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. > + * > + */ > + > +#include <linux/bitops.h> > +#include <linux/device.h> > +#include <linux/err.h> > +#include <linux/interrupt.h> > +#include <linux/io.h> > +#include <linux/kfifo.h> > +#include <linux/mailbox_controller.h> > +#include <linux/mailbox_client.h> > +#include <linux/module.h> > +#include <linux/platform_device.h> > +#include <linux/slab.h> > +#include <linux/delay.h> > + > +#include "mailbox.h" > + > +#define MBOX_CHAN_MAX 32 > + > +#define MBOX_TX 0x1 > + > +/* Mailbox message length: 2 words */ > +#define MBOX_MSG_LEN 2 > + > +#define MBOX_OFF(m) (0x40 * (m)) > +#define MBOX_SRC_REG(m) MBOX_OFF(m) > +#define MBOX_DST_REG(m) (MBOX_OFF(m) + 0x04) > +#define MBOX_DCLR_REG(m) (MBOX_OFF(m) + 0x08) > +#define MBOX_DSTAT_REG(m) (MBOX_OFF(m) + 0x0C) > +#define MBOX_MODE_REG(m) (MBOX_OFF(m) + 0x10) > +#define MBOX_IMASK_REG(m) (MBOX_OFF(m) + 0x14) > +#define MBOX_ICLR_REG(m) (MBOX_OFF(m) + 0x18) > +#define MBOX_SEND_REG(m) (MBOX_OFF(m) + 0x1C) > +#define MBOX_DATA_REG(m, i) (MBOX_OFF(m) + 0x20 + ((i) << 2)) > + > +#define MBOX_CPU_IMASK(cpu) (((cpu) << 3) + 0x800) > +#define MBOX_CPU_IRST(cpu) (((cpu) << 3) + 0x804) > +#define MBOX_IPC_LOCK (0xA00) > + How is this controller different than the PL320? Thanks. -- 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
