@@ -29,6 +29,7 @@ config SANDBOX_TEE
"avb" commands.
source "drivers/tee/optee/Kconfig"
+source "drivers/tee/broadcom/Kconfig"
endmenu
@@ -3,3 +3,4 @@
obj-y += tee-uclass.o
obj-$(CONFIG_SANDBOX) += sandbox.o
obj-$(CONFIG_OPTEE) += optee/
+obj-y += broadcom/
new file mode 100644
@@ -0,0 +1,7 @@
+config CHIMP_OPTEE
+ bool "Enable secure ChiMP firmware loading"
+ depends on OPTEE
+ default y
+ help
+ This driver is used to load bnxt firmware binary using OpTEE.
+ bnxt is Broadcom NetXtreme controller Ethernet card.
new file mode 100644
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+obj-y += chimp_optee.o
new file mode 100644
@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: BSD-2-Clause
+/*
+ * Copyright 2020 Broadcom.
+ */
+
+#include <common.h>
+#include <tee.h>
+#include <broadcom/chimp.h>
+
+#ifdef CONFIG_CHIMP_OPTEE
+
+#define CHMIP_BOOT_UUID { 0x6272636D, 0x2019, 0x0716, \
+ { 0x42, 0x43, 0x4D, 0x5F, 0x53, 0x43, 0x48, 0x49 } }
+
+enum {
+ TEE_CHIMP_FASTBOOT = 0,
+ TEE_CHIMP_HEALTH_STATUS,
+ TEE_CHIMP_HANDSHAKE_STATUS,
+} tee_chmip_cmd;
+
+struct bcm_chimp_data {
+ struct udevice *tee;
+ u32 session;
+} chimp_data;
+
+static int get_open_session(struct bcm_chimp_data *b_data)
+{
+ const struct tee_optee_ta_uuid uuid = CHMIP_BOOT_UUID;
+ struct tee_open_session_arg arg;
+ struct udevice *tee = NULL;
+ int rc;
+
+ tee = tee_find_device(NULL, NULL, NULL, NULL);
+ if (!tee)
+ return -ENODEV;
+
+ memset(&arg, 0, sizeof(arg));
+ tee_optee_ta_uuid_to_octets(arg.uuid, &uuid);
+ rc = tee_open_session(tee, &arg, 0, NULL);
+ if (rc < 0)
+ return -ENODEV;
+
+ b_data->tee = tee;
+ b_data->session = arg.session;
+
+ return 0;
+}
+
+static int init_arg(struct tee_invoke_arg *arg, u32 func)
+{
+ if (get_open_session(&chimp_data))
+ return -EINVAL;
+
+ memset(arg, 0, sizeof(struct tee_invoke_arg));
+ arg->func = func;
+ arg->session = chimp_data.session;
+
+ return 0;
+}
+
+int chimp_handshake_status_optee(u32 timeout, u32 *hs)
+{
+ struct tee_invoke_arg arg;
+ struct tee_param param[1];
+ int ret;
+
+ ret = init_arg(&arg, TEE_CHIMP_HANDSHAKE_STATUS);
+ if (ret < 0)
+ return ret;
+
+ param[0].attr = TEE_PARAM_ATTR_TYPE_VALUE_INOUT;
+ param[0].u.value.a = timeout;
+
+ ret = tee_invoke_func(chimp_data.tee, &arg, ARRAY_SIZE(param), param);
+ if (ret < 0) {
+ printf("Handshake status command failed\n");
+ goto out;
+ }
+
+ switch (arg.ret) {
+ case TEE_SUCCESS:
+ *hs = param[0].u.value.a;
+ ret = 0;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+out:
+ tee_close_session(chimp_data.tee, chimp_data.session);
+ chimp_data.tee = NULL;
+
+ return ret;
+}
+
+int chimp_health_status_optee(u32 *health)
+{
+ struct tee_invoke_arg arg;
+ struct tee_param param[1];
+ int ret;
+
+ ret = init_arg(&arg, TEE_CHIMP_HEALTH_STATUS);
+ if (ret < 0)
+ return ret;
+
+ param[0].attr = TEE_PARAM_ATTR_TYPE_VALUE_OUTPUT;
+
+ ret = tee_invoke_func(chimp_data.tee, &arg, ARRAY_SIZE(param), param);
+ if (ret < 0) {
+ printf("Helath status command failed\n");
+ goto out;
+ }
+
+ switch (arg.ret) {
+ case TEE_SUCCESS:
+ *health = param[0].u.value.a;
+ ret = 0;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+out:
+ tee_close_session(chimp_data.tee, chimp_data.session);
+ chimp_data.tee = NULL;
+
+ return ret;
+}
+
+int chimp_fastboot_optee(void)
+{
+ struct tee_invoke_arg arg;
+ int ret;
+
+ ret = init_arg(&arg, TEE_CHIMP_FASTBOOT);
+ if (ret < 0)
+ return ret;
+
+ ret = tee_invoke_func(chimp_data.tee, &arg, 0, NULL);
+ if (ret < 0) {
+ printf("Chimp boot_fail\n");
+ goto out;
+ }
+
+ switch (arg.ret) {
+ case TEE_SUCCESS:
+ ret = 0;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+out:
+ tee_close_session(chimp_data.tee, chimp_data.session);
+ chimp_data.tee = NULL;
+
+ return ret;
+}
+#else
+int chimp_handshake_status_optee(u32 timeout, u32 *status)
+{
+ printf("ChiMP handshake status fail (OPTEE not enabled)\n");
+ return -EINVAL;
+}
+
+int chimp_health_status_optee(u32 *status)
+{
+ printf("ChiMP health status fail (OPTEE not enabled)\n");
+ return -EINVAL;
+}
+
+int chimp_fastboot_optee(void)
+{
+ printf("ChiMP secure boot fail (OPTEE not enabled)\n");
+ return -EINVAL;
+}
+#endif /* CONFIG_CHIMP_OPTEE */
new file mode 100644
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2020 Broadcom.
+ *
+ */
+
+#ifndef __CHIMP_H__
+#define __CHIMP_H__
+
+#include <linux/compiler.h>
+
+/**
+ * chimp_fastboot_optee() - api to load bnxt firmware
+ *
+ * @return: 0 on success and -ve on failure
+ */
+int chimp_fastboot_optee(void);
+
+/**
+ * chimp_health_status_optee() - get chimp health status
+ *
+ * Chimp health status could be firmware is in good condition or
+ * bad condition because of crash/hang.
+ *
+ * @status: pointer to get chimp health status
+ *
+ * @return: 0 on success and -ve on failure
+ */
+int chimp_health_status_optee(u32 *status);
+
+/**
+ * chimp_handshake_status_optee() - get chimp handshake status.
+ *
+ * To know firmware is loaded and running.
+ *
+ * @timeout: timeout value, if 0 then default timeout is considered by op-tee
+ * @hstatus: pointer to chimp handshake status
+ *
+ * @return: 0 on success and -ve on failure
+ */
+int chimp_handshake_status_optee(u32 timeout, u32 *hstatus);
+
+#endif