[PATCH RFC v3 04/11] ti: etype: dm: Add entry type for TI DM

[Alper Nebi Yasak]

On 15/06/2022 09:47, Neha Malcom Francis wrote:
> K3 devices introduces the concept of centralized power, resource and
> security management to System Firmware. This is to overcome challenges
> by the traditional approach that implements system control functions on
> each of the processing units.
> 
> The software interface for System Firmware is split into TIFS and DM. DM

TIFS (TI Foundational Security), I assume.

> (Device Manager) is responsible for resource and power management from
> secure and non-secure hosts. This additional binary is necessary for
> specific platforms' ROM boot images and is to be packaged into tispl.bin
> 
> Add an entry for DM. The entry can be used for the packaging of
> tispl.bin by binman along with ATF and TEE.
> 
> Signed-off-by: Neha Malcom Francis <n-francis at ti.com>
> ---
>  Makefile                        |  1 +
>  tools/binman/entries.rst        | 10 ++++++++++
>  tools/binman/etype/ti_dm.py     | 23 +++++++++++++++++++++++
>  tools/binman/ftest.py           |  7 +++++++
>  tools/binman/test/225_ti_dm.dts | 13 +++++++++++++
>  5 files changed, 54 insertions(+)
>  create mode 100644 tools/binman/etype/ti_dm.py
>  create mode 100644 tools/binman/test/225_ti_dm.dts

Reviewed-by: Alper Nebi Yasak <alpernebiyasak at gmail.com>

Same minor issues as the previous patch.

> diff --git a/Makefile b/Makefile
> index d20d264c53..9b29e8e6a2 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1342,6 +1342,7 @@ cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
>  		$(foreach f,$(BINMAN_INDIRS),-I $(f)) \
>  		-a atf-bl31-path=${BL31} \
>  		-a tee-os-path=${TEE} \
> +		-a ti-dm-path=${DM} \
>  		-a opensbi-path=${OPENSBI} \
>  		-a default-dt=$(default_dt) \
>  		-a scp-path=$(SCP) \
> diff --git a/tools/binman/entries.rst b/tools/binman/entries.rst
> index 9fc5c48c35..b6915ef12e 100644
> --- a/tools/binman/entries.rst
> +++ b/tools/binman/entries.rst
> @@ -1214,6 +1214,16 @@ devices.
>  
>  
>  
> +Entry: ti-dm: Texas Instruments Device Manager (DM) blob
> +-----------------------------------------------------------------
> +
> +Properties / Entry arguments:
> +    - ti-dm-path: Filename of file to read into the entry, typically dm.bin
> +
> +This entry holds the device manager responsible for resource and power management in K3 devices.
> +
> +
> +
>  Entry: section: Entry that contains other entries
>  -------------------------------------------------
>  
> diff --git a/tools/binman/etype/ti_dm.py b/tools/binman/etype/ti_dm.py
> new file mode 100644
> index 0000000000..4203fff36e
> --- /dev/null
> +++ b/tools/binman/etype/ti_dm.py
> @@ -0,0 +1,23 @@
> +# SPDX-License-Identifier: GPL-2.0+
> +# Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/
> +#
> +# Entry type for TI Device Manager
> +
> +import os
> +
> +from binman.etype.blob_named_by_arg import Entry_blob_named_by_arg
> +
> +
> +class Entry_ti_dm(Entry_blob_named_by_arg):
> +    """Entry containing a Texas Instruments Device Manager (DM)
> +
> +    Properties / Entry arguments:
> +        - ti-dm-path: Filename of file to read into the entry, typically dm.bin
> +
> +    This entry holds the device manager responsible for resource and power management
> +    in K3 devices.
> +    """
> +
> +    def __init__(self, section, etype, node):
> +        super().__init__(section, etype, node, 'ti-dm')
> +        self.external = True
> diff --git a/tools/binman/ftest.py b/tools/binman/ftest.py
> index 671d083c54..3709b68297 100644
> --- a/tools/binman/ftest.py
> +++ b/tools/binman/ftest.py
> @@ -85,6 +85,7 @@ FSP_S_DATA            = b'fsp_s'
>  FSP_T_DATA            = b'fsp_t'
>  ATF_BL31_DATA         = b'bl31'
>  TEE_OS_DATA           = b'this is some tee OS data'
> +TI_DM_DATA            = b'tidmtidm'
>  ATF_BL2U_DATA         = b'bl2u'
>  OPENSBI_DATA          = b'opensbi'
>  TI_SYSFW_DATA         = b'sysfw'
> @@ -194,6 +195,7 @@ class TestFunctional(unittest.TestCase):
>          TestFunctional._MakeInputFile('compress_big', COMPRESS_DATA_BIG)
>          TestFunctional._MakeInputFile('bl31.bin', ATF_BL31_DATA)
>          TestFunctional._MakeInputFile('tee-pager.bin', TEE_OS_DATA)
> +        TestFunctional._MakeInputFile('dm.bin', TI_DM_DATA)
>          TestFunctional._MakeInputFile('bl2u.bin', ATF_BL2U_DATA)
>          TestFunctional._MakeInputFile('fw_dynamic.bin', OPENSBI_DATA)
>          TestFunctional._MakeInputFile('sysfw.bin', TI_SYSFW_DATA)
> @@ -5307,6 +5309,11 @@ fdt         fdtmap                Extract the devicetree blob from the fdtmap
>          data = self._DoReadFile('222_tee_os.dts')
>          self.assertEqual(TEE_OS_DATA, data[:len(TEE_OS_DATA)])
>  
> +    def testPackTiDm(self):
> +        """Test that an image with a TI DM binary can be created"""
> +        data = self._DoReadFile('225_ti_dm.dts')
> +        self.assertEqual(TI_DM_DATA, data[:len(TI_DM_DATA)])
> +
>      def testFitFdtOper(self):
>          """Check handling of a specified FIT operation"""
>          entry_args = {
> diff --git a/tools/binman/test/225_ti_dm.dts b/tools/binman/test/225_ti_dm.dts
> new file mode 100644
> index 0000000000..3ab754131e
> --- /dev/null
> +++ b/tools/binman/test/225_ti_dm.dts
> @@ -0,0 +1,13 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +
> +/dts-v1/;
> +
> +/ {
> +	#address-cells = <1>;
> +	#size-cells = <1>;
> +	binman {
> +		ti-dm {
> +			filename = "dm.bin";
> +		};
> +	};
> +};