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https://github.com/CTCaer/switch-l4t-atf.git
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feat(plat/st/stm32mp1): add STM32MP_USB_PROGRAMMER target
Add a support of USB as serial boot devices for STM32MP15x platform: the FIP file is provide by STM32CubeProgrammer with the DFU protocol, loaded in DDR at DWL_BUFFER_BASE address and then the io memmap is used. Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Change-Id: I272c17c458ff1e9d0780f8fa22330c8a35533d19
This commit is contained in:
Patrick Delaunay
Manish Pandey
parent
942f6be211
commit
fa92fef0a0
@ -13,6 +13,7 @@
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#include <drivers/io/io_block.h>
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#include <drivers/io/io_driver.h>
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#include <drivers/io/io_fip.h>
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#include <drivers/io/io_memmap.h>
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#include <drivers/io/io_mtd.h>
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#include <drivers/io/io_storage.h>
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#include <drivers/mmc.h>
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@ -24,6 +25,7 @@
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#include <drivers/st/stm32_fmc2_nand.h>
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#include <drivers/st/stm32_qspi.h>
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#include <drivers/st/stm32_sdmmc2.h>
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#include <drivers/usb_device.h>
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#include <lib/fconf/fconf.h>
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#include <lib/mmio.h>
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#include <lib/utils.h>
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@ -31,7 +33,9 @@
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#include <tools_share/firmware_image_package.h>
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#include <platform_def.h>
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#include <stm32cubeprogrammer.h>
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#include <stm32mp_fconf_getter.h>
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#include <usb_dfu.h>
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/* IO devices */
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uintptr_t fip_dev_handle;
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@ -95,6 +99,10 @@ static io_mtd_dev_spec_t spi_nand_dev_spec = {
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static const io_dev_connector_t *spi_dev_con;
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#endif
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#if STM32MP_USB_PROGRAMMER
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static const io_dev_connector_t *memmap_dev_con;
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#endif
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io_block_spec_t image_block_spec = {
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.offset = 0U,
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.length = 0U,
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@ -128,6 +136,9 @@ static void print_boot_device(boot_api_context_t *boot_context)
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case BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_NAND_QSPI:
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INFO("Using SPI NAND\n");
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break;
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case BOOT_API_CTX_BOOT_INTERFACE_SEL_SERIAL_USB:
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INFO("Using USB\n");
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break;
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default:
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ERROR("Boot interface %u not found\n",
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boot_context->boot_interface_selected);
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@ -246,6 +257,32 @@ static void boot_spi_nand(boot_api_context_t *boot_context)
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}
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#endif /* STM32MP_SPI_NAND */
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#if STM32MP_USB_PROGRAMMER
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static void mmap_io_setup(void)
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{
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int io_result __unused;
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io_result = register_io_dev_memmap(&memmap_dev_con);
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assert(io_result == 0);
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io_result = io_dev_open(memmap_dev_con, (uintptr_t)NULL,
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&storage_dev_handle);
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assert(io_result == 0);
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}
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static void stm32cubeprogrammer_usb(void)
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{
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int ret __unused;
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struct usb_handle *pdev;
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/* Init USB on platform */
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pdev = usb_dfu_plat_init();
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ret = stm32cubeprog_usb_load(pdev, DWL_BUFFER_BASE, DWL_BUFFER_SIZE);
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assert(ret == 0);
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}
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#endif
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void stm32mp_io_setup(void)
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{
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int io_result __unused;
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@ -297,6 +334,12 @@ void stm32mp_io_setup(void)
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boot_spi_nand(boot_context);
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break;
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#endif
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#if STM32MP_USB_PROGRAMMER
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case BOOT_API_CTX_BOOT_INTERFACE_SEL_SERIAL_USB:
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dmbsy();
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mmap_io_setup();
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break;
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#endif
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default:
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ERROR("Boot interface %d not supported\n",
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@ -357,6 +400,17 @@ int bl2_plat_handle_pre_image_load(unsigned int image_id)
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break;
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#endif
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#if STM32MP_USB_PROGRAMMER
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case BOOT_API_CTX_BOOT_INTERFACE_SEL_SERIAL_USB:
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if (image_id == FW_CONFIG_ID) {
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stm32cubeprogrammer_usb();
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/* FIP loaded at DWL address */
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image_block_spec.offset = DWL_BUFFER_BASE;
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image_block_spec.length = DWL_BUFFER_SIZE;
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}
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break;
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#endif
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default:
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ERROR("FIP Not found\n");
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panic();
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@ -490,5 +490,19 @@ int bl2_plat_handle_post_image_load(unsigned int image_id)
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void bl2_el3_plat_prepare_exit(void)
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{
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uint16_t boot_itf = stm32mp_get_boot_itf_selected();
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switch (boot_itf) {
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#if STM32MP_USB_PROGRAMMER
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case BOOT_API_CTX_BOOT_INTERFACE_SEL_SERIAL_USB:
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/* Invalidate the downloaded buffer used with io_memmap */
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inv_dcache_range(DWL_BUFFER_BASE, DWL_BUFFER_SIZE);
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break;
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#endif
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default:
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/* Do nothing in default case */
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break;
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}
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stm32mp1_security_setup();
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}
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2017-2019, STMicroelectronics - All Rights Reserved
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* Copyright (c) 2017-2021, STMicroelectronics - All Rights Reserved
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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@ -39,6 +39,9 @@
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/* Boot occurred on QSPI NOR */
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#define BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_NOR_QSPI 0x4U
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/* Boot occurred on USB */
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#define BOOT_API_CTX_BOOT_INTERFACE_SEL_SERIAL_USB 0x6U
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/* Boot occurred on QSPI NAND */
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#define BOOT_API_CTX_BOOT_INTERFACE_SEL_FLASH_NAND_QSPI 0x7U
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@ -92,6 +92,10 @@
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*/
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#define PLAT_STM32MP_NS_IMAGE_OFFSET BL33_BASE
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/* Needed by STM32CubeProgrammer support */
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#define DWL_BUFFER_BASE (STM32MP_DDR_BASE + U(0x08000000))
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#define DWL_BUFFER_SIZE U(0x08000000)
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/*
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* SSBL offset in case it's stored in eMMC boot partition.
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* We can fix it to 256K because TF-A size can't be bigger than SRAM
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@ -53,6 +53,9 @@ STM32MP_SPI_NAND ?= 0
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STM32MP_SPI_NOR ?= 0
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STM32MP_EMMC_BOOT ?= 0
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# Serial boot devices
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STM32MP_USB_PROGRAMMER ?= 0
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# Device tree
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DTB_FILE_NAME ?= stm32mp157c-ev1.dtb
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ifeq ($(STM32MP_USE_STM32IMAGE),1)
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@ -127,6 +130,7 @@ $(eval $(call assert_booleans,\
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STM32MP_SPI_NOR \
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STM32MP_EMMC_BOOT \
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PLAT_XLAT_TABLES_DYNAMIC \
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STM32MP_USB_PROGRAMMER \
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STM32MP_USE_STM32IMAGE \
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)))
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@ -147,6 +151,7 @@ $(eval $(call add_defines,\
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PLAT_XLAT_TABLES_DYNAMIC \
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STM32_TF_A_COPIES \
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PLAT_PARTITION_MAX_ENTRIES \
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STM32MP_USB_PROGRAMMER \
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STM32MP_USE_STM32IMAGE \
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)))
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@ -251,6 +256,17 @@ ifneq ($(filter 1,${STM32MP_RAW_NAND} ${STM32MP_SPI_NAND} ${STM32MP_SPI_NOR}),)
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BL2_SOURCES += plat/st/stm32mp1/stm32mp1_boot_device.c
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endif
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ifeq (${STM32MP_USB_PROGRAMMER},1)
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#The DFU stack uses only one end point, reduce the USB stack footprint
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$(eval $(call add_define_val,CONFIG_USBD_EP_NB,1U))
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BL2_SOURCES += drivers/io/io_memmap.c \
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drivers/st/usb/stm32mp1_usb.c \
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drivers/usb/usb_device.c \
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plat/st/common/stm32cubeprogrammer_usb.c \
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plat/st/common/usb_dfu.c \
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plat/st/stm32mp1/stm32mp1_usb_dfu.c
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endif
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BL2_SOURCES += drivers/st/ddr/stm32mp1_ddr.c \
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drivers/st/ddr/stm32mp1_ram.c
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@ -274,7 +290,8 @@ check_boot_device:
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[ ${STM32MP_SDMMC} != 1 ] && \
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[ ${STM32MP_RAW_NAND} != 1 ] && \
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[ ${STM32MP_SPI_NAND} != 1 ] && \
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[ ${STM32MP_SPI_NOR} != 1 ]; then \
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[ ${STM32MP_SPI_NOR} != 1 ] && \
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[ ${STM32MP_USB_PROGRAMMER} != 1 ]; then \
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echo "No boot device driver is enabled"; \
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false; \
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fi
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