From: Bharat Kumar Reddy Gooty bharat.gooty@broadcom.com
Add command for chimp handshake. Handshake is used to know chimp is loaded and booted successfully.
Signed-off-by: Bharat Kumar Reddy Gooty bharat.gooty@broadcom.com Signed-off-by: Rayagonda Kokatanur rayagonda.kokatanur@broadcom.com Reviewed-by: Simon Glass sjg@chromium.org --- Changes from V1: -Address review comments from Simon, Rearrange header files. Remove use of typedef. Command description correction.
cmd/broadcom/Makefile | 1 + cmd/broadcom/chimp_handshake.c | 33 +++++++++++++++++++++++++++++++++ include/broadcom/chimp.h | 6 ++++++ 3 files changed, 40 insertions(+) create mode 100644 cmd/broadcom/chimp_handshake.c
diff --git a/cmd/broadcom/Makefile b/cmd/broadcom/Makefile index 6cdece1a3a..62268d98d0 100644 --- a/cmd/broadcom/Makefile +++ b/cmd/broadcom/Makefile @@ -3,3 +3,4 @@
obj-y += chimp_boot.o obj-y += nitro_image_load.o +obj-y += chimp_handshake.o diff --git a/cmd/broadcom/chimp_handshake.c b/cmd/broadcom/chimp_handshake.c new file mode 100644 index 0000000000..a90a73a6d7 --- /dev/null +++ b/cmd/broadcom/chimp_handshake.c @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2020 Broadcom + */ + +#include <common.h> +#include <command.h> +#include <broadcom/chimp.h> + +/* This command should be called after loading the nitro binaries */ +static int do_chimp_hs(struct cmd_tbl *cmdtp, int flag, int argc, + char *const argv[]) +{ + int ret = CMD_RET_USAGE; + u32 hstatus; + + /* Returns 1, if handshake call is success */ + if (chimp_handshake_status_optee(0, &hstatus)) + ret = CMD_RET_SUCCESS; + + if (hstatus == CHIMP_HANDSHAKE_SUCCESS) + printf("ChiMP Handshake successful\n"); + else + printf("ERROR: ChiMP Handshake status 0x%x\n", hstatus); + + return ret; +} + +U_BOOT_CMD + (chimp_hs, 1, 1, do_chimp_hs, + "Verify the Chimp handshake", + "chimp_hs\n" +); diff --git a/include/broadcom/chimp.h b/include/broadcom/chimp.h index 73bb1c21e9..738f73eefd 100644 --- a/include/broadcom/chimp.h +++ b/include/broadcom/chimp.h @@ -15,6 +15,12 @@ */ #define BCM_CHIMP_RUNNIG_GOOD 0x8000
+enum { + CHIMP_HANDSHAKE_SUCCESS = 0, + CHIMP_HANDSHAKE_WAIT_ERROR, + CHIMP_HANDSHAKE_WAIT_TIMEOUT, +}; + /** * chimp_fastboot_optee() - api to load bnxt firmware *