src/soc/intel/{common,cnl,skl,icl}: Move global reset req function to common
send_heci_reset_req_message() is defined in multiple places,
hence move it to common code.
TEST=Verified on CMLRVP/Hatch/Soraka/Bobba/Dragon Egg boards.
Change-Id: I691fc0610356ef1f64ffa7cc4fe7a39b1344cc16
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35228
Reviewed-by: V Sowmya <v.sowmya@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/common/block/cse/cse.c b/src/soc/intel/common/block/cse/cse.c
index 223eab5..01b2050 100644
--- a/src/soc/intel/common/block/cse/cse.c
+++ b/src/soc/intel/common/block/cse/cse.c
@@ -69,10 +69,25 @@
#define HECI_OP_MODE_SEC_OVERRIDE 5
+/* Global Reset Command ID */
+#define MKHI_GLOBAL_RESET_REQ 0xb
+#define MKHI_GROUP_ID_CBM 0
+
+/* RST Origin */
+#define GR_ORIGIN_BIOS_POST 2
+
static struct cse_device {
uintptr_t sec_bar;
} g_cse;
+/* HECI Message Header */
+struct mkhi_hdr {
+ uint8_t group_id;
+ uint8_t command:7;
+ uint8_t is_resp:1;
+ uint8_t rsvd;
+ uint8_t result;
+} __packed;
/*
* Initialize the device with provided temporary BAR. If BAR is 0 use a
* default. This is intended for pre-mem usage only where BARs haven't been
@@ -558,6 +573,52 @@
return pci_read_config32(PCH_DEV_CSE, offset);
}
+/*
+ * Sends GLOBAL_RESET_REQ cmd to CSE.The reset type can be GLOBAL_RESET/
+ * HOST_RESET_ONLY/CSE_RESET_ONLY.
+ */
+int send_heci_reset_req_message(uint8_t rst_type)
+{
+ int status;
+ struct mkhi_hdr reply;
+ struct reset_message {
+ struct mkhi_hdr hdr;
+ uint8_t req_origin;
+ uint8_t reset_type;
+ } __packed;
+ struct reset_message msg = {
+ .hdr = {
+ .group_id = MKHI_GROUP_ID_CBM,
+ .command = MKHI_GLOBAL_RESET_REQ,
+ },
+ .req_origin = GR_ORIGIN_BIOS_POST,
+ .reset_type = rst_type
+ };
+ size_t reply_size;
+
+ if (!((rst_type == GLOBAL_RESET) ||
+ (rst_type == HOST_RESET_ONLY) || (rst_type == CSE_RESET_ONLY)))
+ return -1;
+
+ heci_reset();
+
+ reply_size = sizeof(reply);
+ memset(&reply, 0, reply_size);
+
+ printk(BIOS_DEBUG, "HECI: Global Reset(Type:%d) Command\n", rst_type);
+ if (rst_type == CSE_RESET_ONLY)
+ status = heci_send_receive(&msg, sizeof(msg), NULL, 0);
+ else
+ status = heci_send_receive(&msg, sizeof(msg), &reply,
+ &reply_size);
+
+ if (status != 1)
+ return -1;
+
+ printk(BIOS_DEBUG, "HECI: Global Reset success!\n");
+ return 0;
+}
+
#if ENV_RAMSTAGE
static void update_sec_bar(struct device *dev)