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authorKarthikeyan Ramasubramanian <kramasub@google.com>2020-08-04 16:50:02 -0600
committerEdward O'Callaghan <quasisec@chromium.org>2020-08-14 08:35:15 +0000
commitc96d12e5ec9310947a24a3c3a03bccc7b01898c3 (patch)
tree2b66f9fda4243440ca3b04cdc06671bf393c6eff /src
parentf9cc6374f218789ae91dfc61f8d4494874908b5e (diff)
downloadcoreboot-c96d12e5ec9310947a24a3c3a03bccc7b01898c3.tar.xz
ec/google/chromeec: Add helper to request AP reset
Add a helper function to initiate AP reset through Embedded Controller (EC). BUG=b:162290856 TEST=Ensure that the EC resets AP on boards where the command is supported. Change-Id: I01d7dfec72a8a3f6d2c4844bc062672e494860d8 Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44188 Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Nick Vaccaro <nvaccaro@google.com> Reviewed-by: Edward O'Callaghan <quasisec@chromium.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Justin TerAvest <teravest@chromium.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
-rw-r--r--src/ec/google/chromeec/ec.c18
-rw-r--r--src/ec/google/chromeec/ec.h7
2 files changed, 25 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c
index e66e3b16c9..40285dc81d 100644
--- a/src/ec/google/chromeec/ec.c
+++ b/src/ec/google/chromeec/ec.c
@@ -1539,3 +1539,21 @@ int google_chromeec_get_keybd_config(struct ec_response_keybd_config *keybd)
return 0;
}
+
+int google_chromeec_ap_reset(void)
+{
+ struct chromeec_command cmd = {
+ .cmd_code = EC_CMD_AP_RESET,
+ .cmd_version = 0,
+ .cmd_data_in = NULL,
+ .cmd_size_in = 0,
+ .cmd_data_out = NULL,
+ .cmd_size_out = 0,
+ .cmd_dev_index = 0,
+ };
+
+ if (google_chromeec_command(&cmd))
+ return -1;
+
+ return 0;
+}
diff --git a/src/ec/google/chromeec/ec.h b/src/ec/google/chromeec/ec.h
index aead5f7fa8..9d4e58842e 100644
--- a/src/ec/google/chromeec/ec.h
+++ b/src/ec/google/chromeec/ec.h
@@ -337,6 +337,13 @@ int google_chromeec_get_pd_port_caps(int port,
*/
int google_chromeec_get_keybd_config(struct ec_response_keybd_config *keybd);
+/**
+ * Send EC command to perform AP reset
+ *
+ * @return 0 on success, -1 on error
+ */
+int google_chromeec_ap_reset(void);
+
#if CONFIG(HAVE_ACPI_TABLES)
/**
* Writes USB Type-C PD related information to the SSDT