Michał Żygowski has uploaded this change for review.
board_enable.c: Add ME unlock function for TUXEDO laptops
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Change-Id: I6bf1c40900aa674e3ea4f6add12dae8b73759fbb
---
M board_enable.c
M flashrom.8.tmpl
2 files changed, 39 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/flashrom refs/changes/23/56023/1
diff --git a/board_enable.c b/board_enable.c
index 9cf0103..6780786 100644
--- a/board_enable.c
+++ b/board_enable.c
@@ -2306,6 +2306,37 @@
return 0;
}
+static int tuxedo_unlock_me(void)
+{
+ uint8_t data;
+ char *arg;
+
+ arg = extract_programmer_param("unlockmeonly");
+ if (!arg && strcmp(arg, "yes"))
+ return 0;
+
+ free(arg);
+
+ if (!ec_write_cmd(EC_CONTROL, 0xc2)) {
+ msg_perr("Failed to start ME unlocking.\n");
+ return -1;
+ }
+
+ if (!ec_read_reg(0xda, &data)) {
+ msg_perr("Failed to read ME state register\n");
+ return -1;
+ }
+
+ if (!ec_write_reg(0xda, data | 0x08)) {
+ msg_perr("Failed to update ME state register\n");
+ return -1;
+ }
+
+ msg_perr("ME has been unlocked. Power off and then power on to take effect.\n");
+
+ return 0;
+}
+
#endif
/*
@@ -2527,6 +2558,8 @@
{0x1106, 0x0259, 0x1106, 0xAA07, 0x1106, 0x3227, 0x1106, 0xAA07, NULL, NULL, NULL, P3, "VIA", "EPIA EK", 0, NT, via_vt823x_gpio9_raise},
{0x1106, 0x3177, 0x1106, 0xAA01, 0x1106, 0x3123, 0x1106, 0xAA01, NULL, NULL, NULL, P3, "VIA", "EPIA M/MII/...", 0, OK, via_vt823x_gpio15_raise},
{0x1106, 0x0259, 0x1106, 0x3227, 0x1106, 0x3065, 0x1106, 0x3149, NULL, NULL, NULL, P3, "VIA", "EPIA-N/NL", 0, OK, via_vt823x_gpio9_raise},
+ {0x8086, 0xa082, 0x1558, 0x14a1, 0x8086, 0x9a14, 0x1558, 0x14a1, NULL, NULL, NULL, P3, "TUXEDO", "InfinityBook S 14 Gen6", 0, OK, tuxedo_unlock_me},
+ {0x8086, 0xa082, 0x1558, 0x14a1, 0x8086, 0x9a14, 0x1558, 0x14a1, NULL, NULL, NULL, P3, "TUXEDO", "InfinityBook S 15 Gen6", 0, OK, tuxedo_unlock_me},
#endif
{ 0, 0, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL, P3, NULL, NULL, 0, NT, NULL}, /* end marker */
};
diff --git a/flashrom.8.tmpl b/flashrom.8.tmpl
index 228e17b..ccacd86 100644
--- a/flashrom.8.tmpl
+++ b/flashrom.8.tmpl
@@ -645,6 +645,12 @@
.B " flashrom \-p internal:laptop=this_is_not_a_laptop"
.sp
to tell flashrom (at your own risk) that it is not running on a laptop.
+.sp
+Parameter
+.B unlockmeonly
+can be used to unlock updating flash on Clevo/Tuxedo laptops. Syntax is
+.sp
+.B " flashrom \-p internal:unlockmeonly=yes"
.SS
.BR "dummy " programmer
.IP
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