From 8aabf498e15b1bc0c5095e9a983f15ffa53436b8 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 25 Jan 2016 19:52:12 +0100 Subject: hab: Add HABv3 status report function Status reporting for HABv3 is different from HABv4. Add a status report function for HABv3. Signed-off-by: Sascha Hauer --- drivers/hab/Makefile | 1 + drivers/hab/habv3.c | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 79 insertions(+) create mode 100644 drivers/hab/habv3.c (limited to 'drivers') diff --git a/drivers/hab/Makefile b/drivers/hab/Makefile index 5c3b00c168..8528ef954f 100644 --- a/drivers/hab/Makefile +++ b/drivers/hab/Makefile @@ -1 +1,2 @@ obj-$(CONFIG_HABV4) += habv4.o +obj-$(CONFIG_HABV3) += habv3.o diff --git a/drivers/hab/habv3.c b/drivers/hab/habv3.c new file mode 100644 index 0000000000..70f31a3c4d --- /dev/null +++ b/drivers/hab/habv3.c @@ -0,0 +1,78 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; version 2. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ +#define pr_fmt(fmt) "HABv3: " fmt + +#include +#include +#include + +struct hab_status { + u8 value; + const char *str; +}; + +static struct hab_status hab_status[] = { + { 0x8d, "data specified is out of bounds" }, + { 0x55, "error during assert verification" }, + { 0x36, "hash verification failed" }, + { 0x33, "certificate parsing failed or the certificate contained an unsupported key" }, + { 0x35, "signature verification failed" }, + { 0x4B, "CSF command sequence contains unsupported command identifier" }, + { 0x4e, "absence of expected CSF header" }, + { 0x4d, "CSF length is unsupported" }, + { 0x2e, "CSF TYPE does not match processor TYPE" }, + { 0x2d, "CSF UID does not match either processor UID or generic UID" }, + { 0x3a, "CSF customer/product code does not match processor customer/product code" }, + { 0x87, "key indexis either unsupported, or an attempt is made to overwrite the SRK from a CSF command" }, + { 0x17, "SCC unexpectedly not in secure state" }, + { 0x1e, "secureRAM secret key invalid" }, + { 0x1d, "secureRAM initialization failure" }, + { 0x1b, "secureRAM self test failure" }, + { 0x2b, "secureRAM internal failure" }, + { 0x27, "secureRAM secrect key unexpectedly in use" }, + { 0x8b, "an attempt is made to read a key from the list of subordinate public keys at a location " + "where no key is installed" }, + { 0x8e, "algorithm type is either invalid or ortherwise unsupported" }, + { 0x66, "write operation to register failed" }, + { 0x63, "DCD invalid" }, + { 0x6f, "RAM application pointer is NULL or ERASED_FLASH" }, + { 0x69, "CSF missing when HAB TYPE is not HAB-disabled" }, + { 0x6a, "NANDFC boot buffer load failed" }, + { 0x6c, "Exception has occured" }, + { 0x67, "INT_BOOT fuse is blown but BOOT pins are set for external boot" }, + { 0x88, "Successful download completion" }, +}; + +int imx_habv3_get_status(uint32_t status) +{ + int i; + + if (status == 0xf0) { + pr_info("status OK\n"); + return 0; + } + + for (i = 0; i < ARRAY_SIZE(hab_status); i++) { + if (hab_status[i].value == status) { + pr_err("status: 0x%02x: %s\n", status, hab_status[i].str); + return -EPERM; + } + } + + pr_err("unknown status code 0x%02x\n", status); + + return -EPERM; +} + +int imx25_hab_get_status(void) +{ + return imx_habv3_get_status(readl(IOMEM(0x780018d4))); +} \ No newline at end of file -- cgit v1.2.3