Add supporting new compatible string "u-boot,zynqmp-fpga-ddrauth" to handle loading authenticated images (DDR).
Based on solution by Jorge Ramirez-Ortiz jorge@foundries.io Signed-off-by: Oleksandr Suvorov oleksandr.suvorov@foundries.io Co-developed-by: Ricardo Salveti ricardo@foundries.io Signed-off-by: Ricardo Salveti ricardo@foundries.io Tested-by: Ricardo Salveti ricardo@foundries.io ---
Changes in v3: - remove the patch which introduced CMD_SPL_FPGA_LOAD_SECURE. - fix mixing definitions/declarations. - replace strcmp() calls with more secure strncmp(). - document the "u-boot,zynqmp-fpga-ddrauth" compatible string. - fix code style by check-patch recommendations.
Changes in v2: - add function fit_fpga_load() to simplify calls of fpga_load() from contexts without a compatible attribute. - move all ZynqMP-specific logic to drivers/fpga/zynqmppl.c - prepare for passing a "compatible" FDT property to any fpga driver.
common/Kconfig.boot | 4 ++-- doc/uImage.FIT/source_file_format.txt | 5 ++++- drivers/fpga/zynqmppl.c | 21 +++++++++++++++++++++ 3 files changed, 27 insertions(+), 3 deletions(-)
diff --git a/common/Kconfig.boot b/common/Kconfig.boot index a8d4be23a9..f879654174 100644 --- a/common/Kconfig.boot +++ b/common/Kconfig.boot @@ -198,8 +198,8 @@ config SPL_LOAD_FIT 1. "loadables" images, other than FDTs, which do not have a "load" property will not be loaded. This limitation also applies to FPGA images with the correct "compatible" string. - 2. For FPGA images, only the "compatible" = "u-boot,fpga-legacy" - loading method is supported. + 2. For FPGA images, the supported "compatible" list is in the + doc/uImage.FIT/source_file_format.txt. 3. FDTs are only loaded for images with an "os" property of "u-boot". "linux" images are also supported with Falcon boot mode.
diff --git a/doc/uImage.FIT/source_file_format.txt b/doc/uImage.FIT/source_file_format.txt index f93ac6d1c7..461e2af2a8 100644 --- a/doc/uImage.FIT/source_file_format.txt +++ b/doc/uImage.FIT/source_file_format.txt @@ -184,7 +184,10 @@ the '/images' node should have the following layout: Mandatory for types: "firmware", and "kernel". - compatible : compatible method for loading image. Mandatory for types: "fpga", and images that do not specify a load address. - To use the generic fpga loading routine, use "u-boot,fpga-legacy". + Supported compatible methods: + "u-boot,fpga-legacy" - the generic fpga loading routine. + "u-boot,zynqmp-fpga-ddrauth" - signed non-encrypted FPGA bitstream for + Xilinx Zynq UltraScale+ (ZymqMP) device.
Optional nodes: - hash-1 : Each hash sub-node represents separate hash or checksum diff --git a/drivers/fpga/zynqmppl.c b/drivers/fpga/zynqmppl.c index 8ff12bf50a..ce25381890 100644 --- a/drivers/fpga/zynqmppl.c +++ b/drivers/fpga/zynqmppl.c @@ -9,6 +9,7 @@ #include <common.h> #include <compiler.h> #include <cpu_func.h> +#include <fpga.h> #include <log.h> #include <zynqmppl.h> #include <zynqmp_firmware.h> @@ -209,6 +210,26 @@ static int zynqmp_load(xilinx_desc *desc, const void *buf, size_t bsize, u32 buf_lo, buf_hi; u32 ret_payload[PAYLOAD_ARG_CNT]; bool xilfpga_old = false; + fpga_desc *fdesc = container_of((void *)desc, fpga_desc, devdesc); + + if (fdesc && fdesc->compatible && + !strcmp(fdesc->compatible, "u-boot,zynqmp-fpga-ddrauth")) { +#if CONFIG_IS_ENABLED(FPGA_LOAD_SECURE) + struct fpga_secure_info info = { 0 }; + + if (!desc->operations->loads) { + printf("%s: Missing load operation\n", __func__); + return FPGA_FAIL; + } + /* DDR authentication */ + info.authflag = 1; + info.encflag = 2; + return desc->operations->loads(desc, buf, bsize, &info); +#else + printf("No support for %s\n", fdesc->compatible); + return FPGA_FAIL; +#endif + }
if (zynqmp_firmware_version() <= PMUFW_V1_0) { puts("WARN: PMUFW v1.0 or less is detected\n");