Commit c7eec380 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'rproc-v4.6' of git://github.com/andersson/remoteproc 



Pull remoteproc updates from Bjorn Andersson:
 "New driver for controlling ST's remote processors and a couple of
  minor fixes.  Also includes the addition of myself as co-maintainer"

Acked-by: default avatarOhad Ben-Cohen <ohad@wizery.com>

* tag 'rproc-v4.6' of git://github.com/andersson/remoteproc:
  MAINTAINERS: Add co-maintainer for remoteproc subsystems
  remoteproc: Supply controller driver for ST's Remote Processors
  remoteproc: debugfs: Add ability to boot remote processor using debugfs
  remoteproc: dt: Provide bindings for ST's Remote Processor Controller driver
  remoteproc: debugfs: Return error on invalid 'count' value
  remoteproc/wkup_m3: Use MODULE_DEVICE_TABLE to export alias
  remoteproc: report error if resource table doesn't exist
parents 37aa7319 69ae9895

Documentation/devicetree/bindings/remoteproc/st-rproc.txt

0 → 100644
+41 −0
Original line number Diff line number Diff line 
STMicroelectronics Co-Processor Bindings

----------------------------------------



This binding provides support for adjunct processors found on ST SoCs.



Co-processors can be controlled from the bootloader or the primary OS. If

the bootloader starts a co-processor, the primary OS must detect its state

and act accordingly.



Required properties:

- compatible		Should be one of:

				"st,st231-rproc"

				"st,st40-rproc"

- memory-region		Reserved memory (See: ../reserved-memory/reserved-memory.txt)

- resets		Reset lines (See: ../reset/reset.txt)

- reset-names		Must be "sw_reset" and "pwr_reset"

- clocks		Clock for co-processor (See: ../clock/clock-bindings.txt)

- clock-frequency	Clock frequency to set co-processor at if the bootloader

			hasn't already done so

- st,syscfg		System configuration register which holds the boot vector

			for the co-processor

				1st cell: Phandle to syscon block

				2nd cell: Boot vector register offset



Example:



	audio_reserved: rproc@42000000 {

		compatible = "shared-dma-pool";

		reg = <0x42000000 0x01000000>;

		no-map;

	};



	st231-audio {

		compatible	= "st,st231-rproc";

		memory-region	= <&audio_reserved>;

		resets		= <&softreset STIH407_ST231_AUD_SOFTRESET>;

		reset-names	= "sw_reset";

		clocks		= <&clk_s_c0_flexgen CLK_ST231_AUD_0>;

		clock-frequency	= <600000000>;

		st,syscfg	= <&syscfg_core 0x228>;

	};

MAINTAINERS

+3 −0
Original line number Diff line number Diff line
@@ -4979,6 +4979,7 @@ F: include/linux/hw_random.h 


HARDWARE SPINLOCK CORE

M:	Ohad Ben-Cohen <ohad@wizery.com>

M:	Bjorn Andersson <bjorn.andersson@linaro.org>

S:	Maintained

T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ohad/hwspinlock.git

F:	Documentation/hwspinlock.txt
@@ -9169,6 +9170,7 @@ F: include/linux/regmap.h 


REMOTE PROCESSOR (REMOTEPROC) SUBSYSTEM

M:	Ohad Ben-Cohen <ohad@wizery.com>

M:	Bjorn Andersson <bjorn.andersson@linaro.org>

T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc.git

S:	Maintained

F:	drivers/remoteproc/
@@ -9177,6 +9179,7 @@ F: include/linux/remoteproc.h 


REMOTE PROCESSOR MESSAGING (RPMSG) SUBSYSTEM

M:	Ohad Ben-Cohen <ohad@wizery.com>

M:	Bjorn Andersson <bjorn.andersson@linaro.org>

T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg.git

S:	Maintained

F:	drivers/rpmsg/

drivers/remoteproc/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -77,4 +77,13 @@ config DA8XX_REMOTEPROC 
	  It's safe to say n here if you're not interested in multimedia

	  offloading.



config ST_REMOTEPROC

	tristate "ST remoteproc support"

	depends on ARCH_STI

	select REMOTEPROC

	help

	  Say y here to support ST's adjunct processors via the remote

	  processor framework.

	  This can be either built-in or a loadable module.



endmenu

drivers/remoteproc/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -11,3 +11,4 @@ obj-$(CONFIG_OMAP_REMOTEPROC) += omap_remoteproc.o 
obj-$(CONFIG_STE_MODEM_RPROC)	 	+= ste_modem_rproc.o

obj-$(CONFIG_WKUP_M3_RPROC)		+= wkup_m3_rproc.o

obj-$(CONFIG_DA8XX_REMOTEPROC)		+= da8xx_remoteproc.o

obj-$(CONFIG_ST_REMOTEPROC)		+= st_remoteproc.o

drivers/remoteproc/remoteproc_core.c

+3 −1
Original line number Diff line number Diff line
@@ -823,8 +823,10 @@ static int rproc_fw_boot(struct rproc *rproc, const struct firmware *fw) 


	/* look for the resource table */

	table = rproc_find_rsc_table(rproc, fw, &tablesz);

	if (!table)

	if (!table) {

		dev_err(dev, "Failed to find resource table\n");

		goto clean_up;

	}



	/* Verify that resource table in loaded fw is unchanged */

	if (rproc->table_csum != crc32(0, table, tablesz)) {

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