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pru-software-support: add library for PRU firmware

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TI provides a set of headers files and libraries useful in developing
firmware for real-time (PRU) cores embedded in some processors e.g.
AM3358.  This package stages these files for any packages creating
PRU firmware.

Note: As per [1], use commit v4.0.2 to sync with common TI Linux
      versions.

[1] http://e2e.ti.com/support/arm/sitara_arm/f/791/p/552190/2018113#2018113

Signed-off-by: Ash Charles <ash.charles@savoirfairelinux.com>
[Thomas:
 - rename BR2_PACKAGE_PRU_EXAMPLES to BR2_PACKAGE_PRU_SOFTWARE_SUPPORT,
   since the package directory name should match the Config.in option
   for this package
 - use select for BR2_PACKAGE_HOST_TI_CGT_PRU, and therefore add the
   appropriate "depends on BR2_PACKAGE_HOST_TI_CGT_PRU_ARCH_SUPPORTS".]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Ash Charles 2016-12-01 23:22:41 -05:00 committed by Thomas Petazzoni
parent c84a2cb9aa
commit bd438fc06f
7 changed files with 82 additions and 0 deletions
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1
package/Config.in
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@ -437,6 +437,7 @@ endmenu
source "package/pifmrds/Config.in"
source "package/powertop/Config.in"
source "package/pps-tools/Config.in"
source "package/pru-software-support/Config.in"
source "package/pulseview/Config.in"
source "package/read-edid/Config.in"
source "package/rfkill/Config.in"

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package/Config.in.host
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@ -33,6 +33,7 @@ menu "Host utilities"
source "package/openocd/Config.in.host"
source "package/parted/Config.in.host"
source "package/patchelf/Config.in.host"
source "package/pru-software-support/Config.in.host"
source "package/pwgen/Config.in.host"
source "package/qemu/Config.in.host"
source "package/sam-ba/Config.in.host"

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package/pru-software-support/Config.in Normal file
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@ -0,0 +1,9 @@
config BR2_PACKAGE_PRU_SOFTWARE_SUPPORT
bool "pru-software-support"
depends on BR2_PACKAGE_HOST_TI_CGT_PRU_ARCH_SUPPORTS
select BR2_PACKAGE_HOST_PRU_SOFTWARE_SUPPORT
help
PRU firmware examples extracted from TI's PRU software
support package. See readme.txt for installation details.
https://git.ti.com/pru-software-support-package/pru-software-support-package

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package/pru-software-support/Config.in.host Normal file
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@ -0,0 +1,11 @@
config BR2_PACKAGE_HOST_PRU_SOFTWARE_SUPPORT
bool "host pru-software-support"
depends on BR2_PACKAGE_HOST_TI_CGT_PRU_ARCH_SUPPORTS
select BR2_PACKAGE_HOST_TI_CGT_PRU
help
This package provides useful headers and libraries for the
PRU unit found on some TI processors e.g. AM3358. Note that
the included labs and examples aren't built, they can be
built using the corresponding target package.
https://git.ti.com/pru-software-support-package/pru-software-support-package

2
package/pru-software-support/pru-software-support.hash Normal file
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@ -0,0 +1,2 @@
# Locally-calculated hash
sha256 b257535ca9b1641d1a238795f3c7004064c573a91cf4a1fa566e3f7c2360c38f pru-software-support-804b548e69ef9fdf44445f6d0968d81cb8a1e7b4.tar.gz

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package/pru-software-support/pru-software-support.mk Normal file
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@ -0,0 +1,37 @@
################################################################################
#
# pru-software-support
#
################################################################################
PRU_SOFTWARE_SUPPORT_VERSION = 804b548e69ef9fdf44445f6d0968d81cb8a1e7b4
PRU_SOFTWARE_SUPPORT_SITE = git://git.ti.com/pru-software-support-package/pru-software-support-package.git
PRU_SOFTWARE_SUPPORT_LICENSE = BSD-3c
PRU_SOFTWARE_SUPPORT_LICENSE_FILES = PRU_Package-v5.0-Manifest.html
PRU_SOFTWARE_SUPPORT_DEPENDENCIES = host-ti-cgt-pru host-pru-software-support
HOST_PRU_SOFTWARE_SUPPORT_DEPENDENCIES = host-ti-cgt-pru
define HOST_PRU_SOFTWARE_SUPPORT_BUILD_CMDS
$(MAKE) PRU_CGT=$(TI_CGT_PRU_INSTALLDIR) -C $(@D)/lib/src
endef
# install this library support alongside PRU toolchain i.e.
# everything in TI_CGT_PRU_INSTALLDIR as PRU_CGT
define HOST_PRU_SOFTWARE_SUPPORT_INSTALL_CMDS
mkdir -p $(TI_CGT_PRU_INSTALLDIR)/usr/include
cp -dpfr $(@D)/include/* $(TI_CGT_PRU_INSTALLDIR)/usr/include
mkdir -p $(TI_CGT_PRU_INSTALLDIR)/usr/lib
cp -dpfr $(@D)/lib/src/*/gen/*.lib $(TI_CGT_PRU_INSTALLDIR)/usr/lib/
endef
define PRU_SOFTWARE_SUPPORT_BUILD_CMDS
$(MAKE) PRU_CGT=$(TI_CGT_PRU_INSTALLDIR) -C $(@D)/examples
endef
define PRU_SOFTWARE_SUPPORT_INSTALL_TARGET_CMDS
mkdir -p $(TARGET_DIR)/usr/share/pru-software-support
cp -dpfr $(@D)/examples/* $(TARGET_DIR)/usr/share/pru-software-support/
endef
$(eval $(generic-package))
$(eval $(host-generic-package))

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package/pru-software-support/readme.txt Normal file
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@ -0,0 +1,21 @@
PRU Software Support
====================
Two different packages are provided from the TI PRU software support
code base.
1. The include files and rpmsg static library for the PRU are
installed alongside the host package for the PRU code generation
tools package i.e. $(TI_CGT_PRU_INSTALLDIR).
2. A target package for all the examples installed to
/usr/share/pru-software-support/. Users wanting to test a specific
example should copy or link it to a directory where the kernel
looks for firmware, e.g:
# cp /usr/share/pru-software-support/am335x/PRU_gpioToggle/gen/PRU_gpioToggle.out \
/lib/firmware/am335x-pru0-fw
To get started with the PRU, have a look at the labs [1].
[1] http://processors.wiki.ti.com/index.php/PRU_Training:_Hands-on_Labs