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authorDave Gerlach <d-gerlach@ti.com>2015-05-22 15:45:30 -0500
committerOhad Ben-Cohen <ohad@wizery.com>2015-06-17 09:58:08 +0300
commita01bc0d5f557bd8becd0ba75d09c39192004697e (patch)
treea91c592b18f56241b568f3b83d9d247a3863bcc3 /drivers/remoteproc/Kconfig
parentccbbb9faac946ce61c241ce9f08b3486fabf031d (diff)
downloadlinux-a01bc0d5f557bd8becd0ba75d09c39192004697e.tar.bz2
remoteproc/wkup_m3: add a remoteproc driver for TI Wakeup M3
Add a remoteproc driver to load the firmware and boot a small Wakeup M3 processor present on TI AM33xx and AM43xx SoCs. This Wakeup M3 remote processor is an integrated Cortex M3 that allows the SoC to enter the lowest possible power state by taking control from the MPU after it has gone into its own low power state and shutting off any additional peripherals. The Wakeup M3 processor has two internal memory regions - 16 kB of unified instruction memory called UMEM used to store executable code, and 8 kB of data memory called DMEM used for all data sections. The Wakeup M3 processor executes its code entirely from within the UMEM and uses the DMEM for any data. It does not use any external memory or any other external resources. The device address view has the UMEM at address 0x0 and DMEM at address 0x80000, and these are computed automatically within the driver based on relative address calculation from the corresponding device tree IOMEM resources. These device addresses are used to aid the core remoteproc ELF loader code to properly translate and load the firmware segments through the .rproc_da_to_va ops. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Diffstat (limited to 'drivers/remoteproc/Kconfig')
-rw-r--r--drivers/remoteproc/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index 5e343bab9458..28c711f0ac6b 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -41,6 +41,19 @@ config STE_MODEM_RPROC
This can be either built-in or a loadable module.
If unsure say N.
+config WKUP_M3_RPROC
+ tristate "AMx3xx Wakeup M3 remoteproc support"
+ depends on SOC_AM33XX || SOC_AM43XX
+ select REMOTEPROC
+ help
+ Say y here to support Wakeup M3 remote processor on TI AM33xx
+ and AM43xx family of SoCs.
+
+ Required for Suspend-to-RAM on AM33xx and AM43xx SoCs. Also needed
+ for deep CPUIdle states on AM33xx SoCs. Allows for loading of the
+ firmware onto these remote processors.
+ If unsure say N.
+
config DA8XX_REMOTEPROC
tristate "DA8xx/OMAP-L13x remoteproc support"
depends on ARCH_DAVINCI_DA8XX