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RPC/OpenAMP: Support loading sketches to SDRAM. #934

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Merged
merged 5 commits into from
Sep 9, 2024
Merged

RPC/OpenAMP: Support loading sketches to SDRAM. #934

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fa34b9d
RPC: Add license file and headers.
iabdalkader Aug 1, 2024
96ccceb
RPC: Configure M4 memory as strongly ordered if booting from SDRAM.
iabdalkader Aug 1, 2024
a208513
openamp: Load the resource table manually in resource_table_init.
iabdalkader Aug 1, 2024
6ffb9a3
variants/GENERIC_STM32H747_M4: Update linker_script to support DRAM f…
iabdalkader Aug 1, 2024
3b4c179
Add linker script patch.
iabdalkader Aug 1, 2024
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Add linker script patch. 
Signed-off-by: Martino Facchin <[email protected]>
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@iabdalkader
iabdalkader committed Aug 1, 2024
commit 3b4c179bf2f45b031cc83daf49140fab6a035695
40 changes: 19 additions & 21 deletions mbed-os-to-arduino
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Original file line number Diff line number Diff line change
Expand Up @@ -187,31 +187,16 @@ generate_flags () {
echo "Patching '-fno-exceptions' flag for $ARDUINOVARIANT/${fl}flags.txt"
sed -i '/-fno-exceptions/d' "$ARDUINOVARIANT"/${fl}flags.txt
set +e
HAS_OPENAMP_SECTION=`grep openamp_section "$ARDUINOVARIANT"/linker_script.ld`
HAS_PDM_SECTION=`grep pdm_section "$ARDUINOVARIANT"/linker_script.ld`
set -e
if [ x"$HAS_OPENAMP_SECTION" == x ]; then
echo "Adding OpenAMP section to $ARDUINOVARIANT/linker_script.ld"
OPENAMP_SECTION=".openamp_section (NOLOAD) : {\n \
. = ABSOLUTE(0x38000000);\n \
*(.resource_table)\n \
} >RAM_D3 AT > FLASH\n \
.pdm_section (NOLOAD) : {\n \
. = ABSOLUTE(0x3800FC00);\n \
if [ x"$HAS_PDM_SECTION" == x ]; then
echo "Adding PDM section to $ARDUINOVARIANT/linker_script.ld"
PDM_SECTION=".pdm_section 0x3800FC00 (NOLOAD): {\n \
*(.pdm_buffer)\n \
} > RAM_D3\n"

if [[ $ARDUINOVARIANT == *GENERIC*M4 ]]; then
echo "Fixing VTOR base in $ARDUINOVARIANT/linker_script.ld"
VTOR_SECTION="#if (CM4_BINARY_START == 0x60000000)\n \
REGION_ALIAS(\"RAM\", FLASH);\n \
#else\n \
REGION_ALIAS(\"RAM\", RAM_D2);\n \
#endif\n"
sed -i "s?REGION_ALIAS.*?${VTOR_SECTION}?g" $ARDUINOVARIANT/linker_script.ld
fi

if [[ $ARDUINOVARIANT == *PORTENTA*M7* || $ARDUINOVARIANT == *GIGA* || $ARDUINOVARIANT == *OPTA* ]]; then
OPENAMP_SECTION="${OPENAMP_SECTION} \
PDM_SECTION="${PDM_SECTION} \
_dtcm_lma = __etext + SIZEOF(.data);\n \
.dtcm : AT(_dtcm_lma) {\n \
_sdtcm = .;\n \
Expand All @@ -220,9 +205,22 @@ generate_flags () {
} > DTCMRAM"
fi

sed -i "s?.heap (COPY):?${OPENAMP_SECTION}\n .heap (COPY):?g" $ARDUINOVARIANT/linker_script.ld
sed -i "s?.heap (COPY):?${PDM_SECTION}\n .heap (COPY):?g" $ARDUINOVARIANT/linker_script.ld
OPENAMP_REGIONS="__OPENAMP_region_start__ = 0x38000400;\n__OPENAMP_region_end__ = 0x38000400 + LENGTH(RAM_D3) - 1K;"
sed -i "s?ENTRY(Reset_Handler)?${OPENAMP_REGIONS}\nENTRY(Reset_Handler)?g" $ARDUINOVARIANT/linker_script.ld

if [[ $ARDUINOVARIANT == *GENERIC*M4 ]]; then
echo "Fixing VTOR base in $ARDUINOVARIANT/linker_script.ld"
VTOR_SECTION="#if (CM4_BINARY_START == 0x60000000)\n \
REGION_ALIAS(\"RAM\", FLASH);\n \
#else\n \
REGION_ALIAS(\"RAM\", RAM_D2);\n \
#endif\n"
sed -i "s?REGION_ALIAS.*?${VTOR_SECTION}?g" $ARDUINOVARIANT/linker_script.ld
echo "Fixing shared memory attributes in $ARDUINOVARIANT/linker_script.ld"
sed -i "s?.heap (COPY)?.heap (NOLOAD)?g" $ARDUINOVARIANT/linker_script.ld
sed -i "s?.stack_dummy (COPY)?.stack_dummy (NOLOAD)?g" $ARDUINOVARIANT/linker_script.ld
fi
fi
echo "Patching linker scripts"
sed -i 's/0x8100000/CM4_BINARY_START/g' "$ARDUINOVARIANT"/linker_script.ld
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