feat(plat/st): add STM32MP_UART_PROGRAMMER target

Handle boot from UART with STM32CubeProgammer based on mmap io
for STM32MP15.

Depends-On: Iba84e8dfd67b9f30416efb0f6778e48ba1f75dad
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Change-Id: Ibd719dd46a11da78633728675ef6639635b6cf67
diff --git a/plat/st/stm32mp1/platform.mk b/plat/st/stm32mp1/platform.mk
index badc926..2a4ab78 100644
--- a/plat/st/stm32mp1/platform.mk
+++ b/plat/st/stm32mp1/platform.mk
@@ -55,6 +55,7 @@
 
 # Serial boot devices
 STM32MP_USB_PROGRAMMER	?=	0
+STM32MP_UART_PROGRAMMER	?=	0
 
 # Device tree
 DTB_FILE_NAME		?=	stm32mp157c-ev1.dtb
@@ -130,6 +131,7 @@
 		STM32MP_SPI_NOR \
 		STM32MP_EMMC_BOOT \
 		PLAT_XLAT_TABLES_DYNAMIC \
+		STM32MP_UART_PROGRAMMER \
 		STM32MP_USB_PROGRAMMER \
 		STM32MP_USE_STM32IMAGE \
 )))
@@ -138,10 +140,12 @@
 	$(sort \
 		STM32_TF_A_COPIES \
 		PLAT_PARTITION_MAX_ENTRIES \
+		STM32_TF_VERSION \
 )))
 
 $(eval $(call add_defines,\
 	$(sort \
+		STM32_TF_VERSION \
 		STM32MP_EMMC \
 		STM32MP_SDMMC \
 		STM32MP_RAW_NAND \
@@ -151,6 +155,7 @@
 		PLAT_XLAT_TABLES_DYNAMIC \
 		STM32_TF_A_COPIES \
 		PLAT_PARTITION_MAX_ENTRIES \
+		STM32MP_UART_PROGRAMMER \
 		STM32MP_USB_PROGRAMMER \
 		STM32MP_USE_STM32IMAGE \
 )))
@@ -260,11 +265,19 @@
 BL2_SOURCES		+=	plat/st/stm32mp1/stm32mp1_boot_device.c
 endif
 
+ifneq ($(filter 1,${STM32MP_UART_PROGRAMMER} ${STM32MP_USB_PROGRAMMER}),)
+BL2_SOURCES		+=	drivers/io/io_memmap.c
+endif
+
+ifeq (${STM32MP_UART_PROGRAMMER},1)
+BL2_SOURCES		+=	drivers/st/uart/stm32_uart.c				\
+				plat/st/common/stm32cubeprogrammer_uart.c
+endif
+
 ifeq (${STM32MP_USB_PROGRAMMER},1)
 #The DFU stack uses only one end point, reduce the USB stack footprint
 $(eval $(call add_define_val,CONFIG_USBD_EP_NB,1U))
-BL2_SOURCES		+=	drivers/io/io_memmap.c					\
-				drivers/st/usb/stm32mp1_usb.c				\
+BL2_SOURCES		+=	drivers/st/usb/stm32mp1_usb.c				\
 				drivers/usb/usb_device.c				\
 				plat/st/common/stm32cubeprogrammer_usb.c		\
 				plat/st/common/usb_dfu.c					\
@@ -295,6 +308,7 @@
 	    [ ${STM32MP_RAW_NAND} != 1 ] && \
 	    [ ${STM32MP_SPI_NAND} != 1 ] && \
 	    [ ${STM32MP_SPI_NOR} != 1 ] && \
+	    [ ${STM32MP_UART_PROGRAMMER} != 1 ] && \
 	    [ ${STM32MP_USB_PROGRAMMER} != 1 ]; then \
 		echo "No boot device driver is enabled"; \
 		false; \