From: T Karthik Reddy t.karthik.reddy@xilinx.com
This patch adds support for SHA3 command. It takes data blob as input and generates 48 bytes sha3 hash value.
Signed-off-by: T Karthik Reddy t.karthik.reddy@xilinx.com Signed-off-by: Siva Durga Prasad Paladugu siva.durga.paladugu@xilinx.com Signed-off-by: Michal Simek michal.simek@xilinx.com ---
arch/arm/mach-zynqmp/include/mach/sys_proto.h | 5 ++ board/xilinx/zynqmp/cmds.c | 63 +++++++++++++++++++ 2 files changed, 68 insertions(+)
diff --git a/arch/arm/mach-zynqmp/include/mach/sys_proto.h b/arch/arm/mach-zynqmp/include/mach/sys_proto.h index d52eccc7e6e8..1c12eac715e5 100644 --- a/arch/arm/mach-zynqmp/include/mach/sys_proto.h +++ b/arch/arm/mach-zynqmp/include/mach/sys_proto.h @@ -15,6 +15,11 @@ #define PRIV_EXPO_LEN 512 #define PUB_EXPO_LEN 4
+#define ZYNQMP_SHA3_INIT 1 +#define ZYNQMP_SHA3_UPDATE 2 +#define ZYNQMP_SHA3_FINAL 4 +#define ZYNQMP_SHA3_SIZE 48 + #define ZYNQMP_FPGA_BIT_AUTH_DDR 1 #define ZYNQMP_FPGA_BIT_AUTH_OCM 2 #define ZYNQMP_FPGA_BIT_ENC_USR_KEY 3 diff --git a/board/xilinx/zynqmp/cmds.c b/board/xilinx/zynqmp/cmds.c index f5fd85ccf7af..caddb64b820e 100644 --- a/board/xilinx/zynqmp/cmds.c +++ b/board/xilinx/zynqmp/cmds.c @@ -282,6 +282,64 @@ static int do_zynqmp_rsa(cmd_tbl_t *cmdtp, int flag, int argc, return CMD_RET_SUCCESS; }
+static int do_zynqmp_sha3(cmd_tbl_t *cmdtp, int flag, + int argc, char * const argv[]) +{ + u64 srcaddr; + u32 srclen, ret_payload[PAYLOAD_ARG_CNT]; + int ret; + + if (argc != cmdtp->maxargs) + return CMD_RET_USAGE; + + if (zynqmp_firmware_version() <= PMUFW_V1_0) { + puts("ERR: PMUFW v1.0 or less is detected\n"); + puts("ERR: Encrypt/Decrypt feature is not supported\n"); + puts("ERR: Please upgrade PMUFW\n"); + return CMD_RET_FAILURE; + } + + srcaddr = simple_strtoul(argv[2], NULL, 16); + srclen = simple_strtoul(argv[3], NULL, 16); + + /* Check srcaddr or srclen != 0 */ + if (!srcaddr || !srclen) { + puts("ERR: srcaddr & srclen should not be 0\n"); + return CMD_RET_USAGE; + } + + flush_dcache_range(srcaddr, + srcaddr + roundup(srclen, ARCH_DMA_MINALIGN)); + + ret = xilinx_pm_request(PM_SECURE_SHA, 0, 0, 0, + ZYNQMP_SHA3_INIT, ret_payload); + if (ret || ret_payload[1]) { + printf("Failed: SHA INIT status:0x%x, errcode:0x%x\n", + ret, ret_payload[1]); + return CMD_RET_FAILURE; + } + + ret = xilinx_pm_request(PM_SECURE_SHA, upper_32_bits((ulong)srcaddr), + lower_32_bits((ulong)srcaddr), + srclen, ZYNQMP_SHA3_UPDATE, ret_payload); + if (ret || ret_payload[1]) { + printf("Failed: SHA UPDATE status:0x%x, errcode:0x%x\n", + ret, ret_payload[1]); + return CMD_RET_FAILURE; + } + + ret = xilinx_pm_request(PM_SECURE_SHA, upper_32_bits((ulong)srcaddr), + lower_32_bits((ulong)srcaddr), ZYNQMP_SHA3_SIZE, + ZYNQMP_SHA3_FINAL, ret_payload); + if (ret || ret_payload[1]) { + printf("Failed: SHA FINAL status:0x%x, errcode:0x%x\n", + ret, ret_payload[1]); + return CMD_RET_FAILURE; + } + + return CMD_RET_SUCCESS; +} + static struct cmd_tbl cmd_zynqmp_sub[] = { U_BOOT_CMD_MKENT(secure, 5, 0, do_zynqmp_verify_secure, "", ""), U_BOOT_CMD_MKENT(pmufw, 4, 0, do_zynqmp_pmufw, "", ""), @@ -289,6 +347,7 @@ static struct cmd_tbl cmd_zynqmp_sub[] = { U_BOOT_CMD_MKENT(mmio_write, 5, 0, do_zynqmp_mmio_write, "", ""), U_BOOT_CMD_MKENT(aes, 9, 0, do_zynqmp_aes, "", ""), U_BOOT_CMD_MKENT(rsa, 7, 0, do_zynqmp_rsa, "", ""), + U_BOOT_CMD_MKENT(sha3, 4, 0, do_zynqmp_sha3, "", ""), #ifdef CONFIG_DEFINE_TCM_OCM_MMAP U_BOOT_CMD_MKENT(tcminit, 3, 0, do_zynqmp_tcm_init, "", ""), #endif @@ -356,6 +415,10 @@ static char zynqmp_help_text[] = " exp : private key exponent for RSA decryption(4096 bits)\n" " public key exponent for RSA encryption(32 bits)\n" " rsaop : 0 for RSA Decryption, 1 for RSA Encryption\n" + "zynqmp sha3 srcaddr srclen\n" + " Generates sha3 hash value for data blob at srcaddr and puts\n" + " 48 bytes hash value into srcaddr\n" + " Note: srcaddr/srclen should not be 0\n" ; #endif