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feat(stm32mp1): configure the serial boot load address

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For product with 128MB DDR size, the OP-TEE is located at the end
of the DDR and the FIP can't be loaded at the default location
because it overlap the OP-TEE final location. So the default value
for DWL_BUFFER_BASE is invalid.

To avoid this conflict the serial boot load address = DWL_BUFFER_BASE
can be modified with a configuration flags.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Change-Id: Ie27b87c10c57fea5d4c6200ce4f624e775b9a080
This commit is contained in:
Patrick Delaunay 2022-03-15 11:20:56 +01:00 • committed by Yann Gautier
parent 32f2ca04bf
commit 4b2f23e55f
3 changed files with 6 additions and 1 deletions
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2
docs/plat/stm32mp1.rst
View file

@ -144,6 +144,8 @@ Other configuration flags:
- | ``DTB_FILE_NAME``: to precise board device-tree blob to be used. - | ``DTB_FILE_NAME``: to precise board device-tree blob to be used.
| Default: stm32mp157c-ev1.dtb | Default: stm32mp157c-ev1.dtb
- | ``DWL_BUFFER_BASE``: the 'serial boot' load address of FIP,
| default location (end of the first 128MB) is used when absent
- | ``STM32MP_EARLY_CONSOLE``: to enable early traces before clock driver is setup. - | ``STM32MP_EARLY_CONSOLE``: to enable early traces before clock driver is setup.
| Default: 0 (disabled) | Default: 0 (disabled)
- | ``STM32MP_UART_BAUDRATE``: to select UART baud rate. - | ``STM32MP_UART_BAUDRATE``: to select UART baud rate.

1
plat/st/stm32mp1/include/platform_def.h
View file

@ -103,7 +103,6 @@
#define PLAT_STM32MP_NS_IMAGE_OFFSET BL33_BASE #define PLAT_STM32MP_NS_IMAGE_OFFSET BL33_BASE
/* Needed by STM32CubeProgrammer support */ /* Needed by STM32CubeProgrammer support */
#define DWL_BUFFER_BASE (STM32MP_DDR_BASE + U(0x07000000))
#define DWL_BUFFER_SIZE U(0x01000000) #define DWL_BUFFER_SIZE U(0x01000000)
/* /*

4
plat/st/stm32mp1/platform.mk
View file

@ -121,6 +121,9 @@ STM32MP_EMMC_BOOT ?= 0
STM32MP_USB_PROGRAMMER ?= 0 STM32MP_USB_PROGRAMMER ?= 0
STM32MP_UART_PROGRAMMER ?= 0 STM32MP_UART_PROGRAMMER ?= 0
# Download load address for serial boot devices
DWL_BUFFER_BASE ?= 0xC7000000
# Device tree # Device tree
ifeq ($(STM32MP13),1) ifeq ($(STM32MP13),1)
BL2_DTSI := stm32mp13-bl2.dtsi BL2_DTSI := stm32mp13-bl2.dtsi
@ -225,6 +228,7 @@ $(eval $(call assert_numerics,\
$(eval $(call add_defines,\ $(eval $(call add_defines,\
$(sort \ $(sort \
DWL_BUFFER_BASE \
PLAT_PARTITION_MAX_ENTRIES \ PLAT_PARTITION_MAX_ENTRIES \
PLAT_XLAT_TABLES_DYNAMIC \ PLAT_XLAT_TABLES_DYNAMIC \
STM32_TF_A_COPIES \ STM32_TF_A_COPIES \