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remoteproc: imx_dsp_rproc: Add remoteproc driver for DSP on i.MX

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Provide a basic driver to control DSP processor found on NXP i.MX8QM,
i.MX8QXP, i.MX8MP and i.MX8ULP.

Currently it is able to resolve addresses between DSP and main CPU,
start and stop the processor, suspend and resume.

The communication between DSP and main CPU is based on mailbox, there
are three mailbox channels (tx, rx, rxdb).

This driver was tested on NXP i.MX8QM, i.MX8QXP, i.MX8MP and i.MX8ULP.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1633944015-789-4-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
This commit is contained in:
Shengjiu Wang 2021-10-11 17:20:14 +08:00 committed by Mathieu Poirier
parent d2320a042e
commit ec0e5549f3
3 changed files with 1218 additions and 0 deletions
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11
drivers/remoteproc/Kconfig
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@ -34,6 +34,17 @@ config IMX_REMOTEPROC
It's safe to say N here.
config IMX_DSP_REMOTEPROC
tristate "i.MX DSP remoteproc support"
depends on ARCH_MXC
depends on HAVE_ARM_SMCCC
select MAILBOX
help
Say y here to support iMX's DSP remote processors via the remote
processor framework.
It's safe to say N here.
config INGENIC_VPU_RPROC
tristate "Ingenic JZ47xx VPU remoteproc support"
depends on MIPS || COMPILE_TEST

1
drivers/remoteproc/Makefile
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@ -12,6 +12,7 @@ remoteproc-y += remoteproc_virtio.o
remoteproc-y += remoteproc_elf_loader.o
obj-$(CONFIG_REMOTEPROC_CDEV) += remoteproc_cdev.o
obj-$(CONFIG_IMX_REMOTEPROC) += imx_rproc.o
obj-$(CONFIG_IMX_DSP_REMOTEPROC) += imx_dsp_rproc.o
obj-$(CONFIG_INGENIC_VPU_RPROC) += ingenic_rproc.o
obj-$(CONFIG_MTK_SCP) += mtk_scp.o mtk_scp_ipi.o
obj-$(CONFIG_OMAP_REMOTEPROC) += omap_remoteproc.o

1206
drivers/remoteproc/imx_dsp_rproc.c Normal file
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