From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rayagonda Kokatanur Date: Sun, 24 May 2020 15:54:17 +0530 Subject: [PATCH v2 1/3] board: ns3: add optee based bnxt fw load driver In-Reply-To: <20200524102419.5568-1-rayagonda.kokatanur@broadcom.com> References: <20200524102419.5568-1-rayagonda.kokatanur@broadcom.com> Message-ID: <20200524102419.5568-2-rayagonda.kokatanur@broadcom.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de From: Vikas Gupta Add optee based bnxt fw load driver. bnxt is Broadcom NetXtreme controller Ethernet card. This driver is used to load bnxt firmware binary using OpTEE. Signed-off-by: Vikas Gupta Signed-off-by: Rayagonda Kokatanur --- Changes from v1: -Address review comments from Thomas Fitzsimmons, Expand the bnxt full form. -Address review comments from Simon Glass, Move c file from board/broadcom/bcmns3/chimp_optee.c to drivers/tee/broadcom, Move header file from include/brcm/chimp.h to include/broadcom/chimp.h drivers/tee/Kconfig | 1 + drivers/tee/Makefile | 1 + drivers/tee/broadcom/Kconfig | 7 ++ drivers/tee/broadcom/Makefile | 3 + drivers/tee/broadcom/chimp_optee.c | 154 +++++++++++++++++++++++++++++ include/broadcom/chimp.h | 40 ++++++++ 6 files changed, 206 insertions(+) create mode 100644 drivers/tee/broadcom/Kconfig create mode 100644 drivers/tee/broadcom/Makefile create mode 100644 drivers/tee/broadcom/chimp_optee.c create mode 100644 include/broadcom/chimp.h diff --git a/drivers/tee/Kconfig b/drivers/tee/Kconfig index 5c0c89043f..5ca5a0836c 100644 --- a/drivers/tee/Kconfig +++ b/drivers/tee/Kconfig @@ -29,6 +29,7 @@ config SANDBOX_TEE "avb" commands. source "drivers/tee/optee/Kconfig" +source "drivers/tee/broadcom/Kconfig" endmenu diff --git a/drivers/tee/Makefile b/drivers/tee/Makefile index f72c68c09f..5c8ffdbce8 100644 --- a/drivers/tee/Makefile +++ b/drivers/tee/Makefile @@ -3,3 +3,4 @@ obj-y += tee-uclass.o obj-$(CONFIG_SANDBOX) += sandbox.o obj-$(CONFIG_OPTEE) += optee/ +obj-y += broadcom/ diff --git a/drivers/tee/broadcom/Kconfig b/drivers/tee/broadcom/Kconfig new file mode 100644 index 0000000000..ce95072d4e --- /dev/null +++ b/drivers/tee/broadcom/Kconfig @@ -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. diff --git a/drivers/tee/broadcom/Makefile b/drivers/tee/broadcom/Makefile new file mode 100644 index 0000000000..5e1c3943de --- /dev/null +++ b/drivers/tee/broadcom/Makefile @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0+ + +obj-$(CONFIG_CHIMP_OPTEE) += chimp_optee.o diff --git a/drivers/tee/broadcom/chimp_optee.c b/drivers/tee/broadcom/chimp_optee.c new file mode 100644 index 0000000000..f432625ffe --- /dev/null +++ b/drivers/tee/broadcom/chimp_optee.c @@ -0,0 +1,154 @@ +// SPDX-License-Identifier: BSD-2-Clause +/* + * Copyright 2020 Broadcom. + */ + +#include +#include +#include + +#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) +{ + struct udevice *tee = NULL; + + while (!b_data->tee) { + const struct tee_optee_ta_uuid uuid = CHMIP_BOOT_UUID; + struct tee_open_session_arg arg; + int rc; + + tee = tee_find_device(tee, 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) { + b_data->tee = tee; + b_data->session = arg.session; + } + } + + return 0; +} + +int chimp_handshake_status_optee(u32 timeout, u32 *hs) +{ + struct tee_invoke_arg arg; + struct tee_param param[1]; + int ret; + + if (get_open_session(&chimp_data)) + return BCM_CHIMP_FAILURE; + + memset(&arg, 0, sizeof(arg)); + arg.func = TEE_CHIMP_HANDSHAKE_STATUS; + arg.session = chimp_data.session; + + param[0].attr = TEE_PARAM_ATTR_TYPE_VALUE_INOUT; + param[0].u.value.a = timeout; + + if (tee_invoke_func(chimp_data.tee, &arg, + ARRAY_SIZE(param), param)) { + printf("Handshake status command failed\n"); + ret = BCM_CHIMP_FAILURE; + goto out; + } + switch (arg.ret) { + case TEE_SUCCESS: + *hs = param[0].u.value.a; + ret = BCM_CHIMP_SUCCESS; + break; + default: + ret = BCM_CHIMP_FAILURE; + 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; + + if (get_open_session(&chimp_data)) + return BCM_CHIMP_FAILURE; + + memset(&arg, 0, sizeof(arg)); + arg.func = TEE_CHIMP_HEALTH_STATUS; + arg.session = chimp_data.session; + + param[0].attr = TEE_PARAM_ATTR_TYPE_VALUE_OUTPUT; + + if (tee_invoke_func(chimp_data.tee, &arg, + ARRAY_SIZE(param), param)) { + printf("Helath status command failed\n"); + ret = BCM_CHIMP_FAILURE; + goto out; + } + switch (arg.ret) { + case TEE_SUCCESS: + *health = param[0].u.value.a; + ret = BCM_CHIMP_SUCCESS; + break; + default: + ret = BCM_CHIMP_FAILURE; + 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; + + if (get_open_session(&chimp_data)) + return BCM_CHIMP_FAILURE; + + memset(&arg, 0, sizeof(arg)); + arg.func = TEE_CHIMP_FASTBOOT; + arg.session = chimp_data.session; + + if (tee_invoke_func(chimp_data.tee, &arg, 0, NULL)) { + printf("Chimp boot_fail\n"); + ret = BCM_CHIMP_FAILURE; + goto out; + } + switch (arg.ret) { + case TEE_SUCCESS: + ret = BCM_CHIMP_SUCCESS; + break; + default: + ret = BCM_CHIMP_FAILURE; + break; + } +out: + tee_close_session(chimp_data.tee, chimp_data.session); + chimp_data.tee = NULL; + + return ret; +} diff --git a/include/broadcom/chimp.h b/include/broadcom/chimp.h new file mode 100644 index 0000000000..c3d4594c4b --- /dev/null +++ b/include/broadcom/chimp.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2020 Broadcom. + * + */ + +#ifndef __CHIMP_H__ +#define __CHIMP_H__ + +#include +#include + +#define BCM_CHIMP_SUCCESS 0 +#define BCM_CHIMP_FAILURE (!BCM_CHIMP_SUCCESS) + +#ifdef CONFIG_CHIMP_OPTEE +int chimp_fastboot_optee(void); +int chimp_health_status_optee(u32 *status); +int chimp_handshake_status_optee(u32 timeout, u32 *hstatus); +#else +static inline int chimp_handshake_status_optee(u32 timeout, u32 *status) +{ + printf("ChiMP handshake status fail (OPTEE not enabled)\n"); + return BCM_CHIMP_FAILURE; +} + +static inline int chimp_health_status_optee(u32 *status) +{ + printf("ChiMP health status fail (OPTEE not enabled)\n"); + return BCM_CHIMP_FAILURE; +} + +static inline int chimp_fastboot_optee(void) +{ + printf("ChiMP secure boot fail (OPTEE not enabled)\n"); + return BCM_CHIMP_FAILURE; +} +#endif + +#endif -- 2.17.1