On 16. 04. 20 23:54, Ben Levinsky wrote: > R5 is included in Xilinx Zynq UltraScale MPSoC so by adding this > remotproc driver, we can boot the R5 sub-system in different > configurations. > > Acked-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxx> > Acked-by: Ben Levinsky <ben.levinsky@xxxxxxxxxx> > Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xxxxxxxxxx> > Signed-off-by: Ben Levinsky <ben.levinsky@xxxxxxxxxx> > Signed-off-by: Wendy Liang <wendy.liang@xxxxxxxxxx> > Signed-off-by: Michal Simek <michal.simek@xxxxxxxxxx> > Signed-off-by: Ed Mooring <ed.mooring@xxxxxxxxxx> > Signed-off-by: Jason Wu <j.wu@xxxxxxxxxx> > Tested-by: Ben Levinsky <ben.levinsky@xxxxxxxxxx> > --- > Changes since v1: > - remove domain struct as per review from Mathieu > --- > drivers/remoteproc/Kconfig | 10 + > drivers/remoteproc/Makefile | 1 + > drivers/remoteproc/zynqmp_r5_remoteproc.c | 911 ++++++++++++++++++++++++++++++ > 3 files changed, 922 insertions(+) > create mode 100644 drivers/remoteproc/zynqmp_r5_remoteproc.c > > diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig > index fbaed07..f094c84 100644 > --- a/drivers/remoteproc/Kconfig > +++ b/drivers/remoteproc/Kconfig > @@ -222,6 +222,16 @@ config ST_REMOTEPROC > processor framework. > This can be either built-in or a loadable module. > > +config ZYNQMP_R5_REMOTEPROC > + tristate "ZynqMP_r5 remoteproc support" > + depends on ARM64 && PM && ARCH_ZYNQMP > + select RPMSG_VIRTIO > + select MAILBOX > + select ZYNQMP_IPI_MBOX > + help > + Say y here to support ZynqMP R5 remote processors via the remote > + processor framework. > + > config ST_SLIM_REMOTEPROC > tristate > > diff --git a/drivers/remoteproc/Makefile b/drivers/remoteproc/Makefile > index 0effd38..806ac3f 100644 > --- a/drivers/remoteproc/Makefile > +++ b/drivers/remoteproc/Makefile > @@ -27,5 +27,6 @@ obj-$(CONFIG_QCOM_WCNSS_PIL) += qcom_wcnss_pil.o > qcom_wcnss_pil-y += qcom_wcnss.o > qcom_wcnss_pil-y += qcom_wcnss_iris.o > obj-$(CONFIG_ST_REMOTEPROC) += st_remoteproc.o > +obj-$(CONFIG_ZYNQMP_R5_REMOTEPROC) += zynqmp_r5_remoteproc.o > obj-$(CONFIG_ST_SLIM_REMOTEPROC) += st_slim_rproc.o > obj-$(CONFIG_STM32_RPROC) += stm32_rproc.o > diff --git a/drivers/remoteproc/zynqmp_r5_remoteproc.c b/drivers/remoteproc/zynqmp_r5_remoteproc.c > new file mode 100644 > index 0000000..2cfc6b6 > --- /dev/null > +++ b/drivers/remoteproc/zynqmp_r5_remoteproc.c > @@ -0,0 +1,911 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Zynq R5 Remote Processor driver > + * > + * Copyright (C) 2015 - 2018 Xilinx Inc. > + * Copyright (C) 2015 Jason Wu <j.wu@xxxxxxxxxx> > + * > + * Based on origin OMAP and Zynq Remote Processor driver > + * > + * Copyright (C) 2012 Michal Simek <monstr@xxxxxxxxx> > + * Copyright (C) 2012 PetaLogix > + * Copyright (C) 2011 Texas Instruments, Inc. > + * Copyright (C) 2011 Google, Inc. > + */ > + > +#include <linux/atomic.h> > +#include <linux/cpu.h> > +#include <linux/dma-mapping.h> > +#include <linux/delay.h> > +#include <linux/err.h> > +#include <linux/firmware/xlnx-zynqmp.h> > +#include <linux/genalloc.h> > +#include <linux/idr.h> > +#include <linux/interrupt.h> > +#include <linux/kernel.h> > +#include <linux/list.h> > +#include <linux/mailbox_client.h> > +#include <linux/mailbox/zynqmp-ipi-message.h> > +#include <linux/module.h> > +#include <linux/of_address.h> > +#include <linux/of_irq.h> > +#include <linux/of_platform.h> > +#include <linux/of_reserved_mem.h> > +#include <linux/pfn.h> > +#include <linux/platform_device.h> > +#include <linux/remoteproc.h> > +#include <linux/skbuff.h> > +#include <linux/slab.h> > +#include <linux/sysfs.h> > + > +#include "remoteproc_internal.h" > + > +#define MAX_RPROCS 2 /* Support up to 2 RPU */ > +#define MAX_MEM_PNODES 4 /* Max power nodes for one RPU memory instance */ > + > +#define DEFAULT_FIRMWARE_NAME "rproc-rpu-fw" > + > +/* PM proc states */ > +#define PM_PROC_STATE_ACTIVE 1U > + > +/* IPI buffer MAX length */ > +#define IPI_BUF_LEN_MAX 32U > +/* RX mailbox client buffer max length */ > +#define RX_MBOX_CLIENT_BUF_MAX (IPI_BUF_LEN_MAX + \ > + sizeof(struct zynqmp_ipi_message)) > + > +static bool autoboot __read_mostly; > + > +static const struct zynqmp_eemi_ops *eemi_ops; Take a look at Jolly's series which she sent recently and use the same style as was recommended by Greg. Thanks, Michal
