From ff64e9a9f0f48107a46536c251951885df63d63f Mon Sep 17 00:00:00 2001 From: Chaitanya Sakinam Date: Fri, 7 May 2021 12:22:05 +0800 Subject: armv8: ls1012a: Pass PPFE firmware to Linux through FDT Read Linux PPFE firmware from flash partition and pass it to Linux through FDT entry. So that we can avoid placing PPFE firmware in Linux rootfs. (FDT may increase at max by 64KB) Signed-off-by: Chaitanya Sakinam Signed-off-by: Anji J Signed-off-by: Biwen Li Reviewed-by: Priyanka Jain --- drivers/net/pfe_eth/pfe_firmware.c | 60 ++++++++++++++++++++++++++++++++++++-- 1 file changed, 58 insertions(+), 2 deletions(-) (limited to 'drivers/net/pfe_eth') diff --git a/drivers/net/pfe_eth/pfe_firmware.c b/drivers/net/pfe_eth/pfe_firmware.c index eee70a2..ac86e33 100644 --- a/drivers/net/pfe_eth/pfe_firmware.c +++ b/drivers/net/pfe_eth/pfe_firmware.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2015-2016 Freescale Semiconductor, Inc. - * Copyright 2017 NXP + * Copyright 2017,2021 NXP */ /* @@ -262,7 +262,8 @@ int pfe_firmware_init(void) uintptr_t pfe_img_addr = 0; #endif int ret = 0; - int fw_count; + int fw_count, max_fw_count; + const char *p; ret = pfe_spi_flash_init(); if (ret) @@ -293,6 +294,61 @@ int pfe_firmware_init(void) } #endif + p = env_get("load_util"); + if (!p) { + max_fw_count = 2; + } else { + max_fw_count = simple_strtoul(p, NULL, 10); + if (max_fw_count) + max_fw_count = 3; + else + max_fw_count = 2; + } + + for (fw_count = 0; fw_count < max_fw_count; fw_count++) { + switch (fw_count) { + case 0: + pfe_firmware_name = "class_slowpath"; + break; + case 1: + pfe_firmware_name = "tmu_slowpath"; + break; + case 2: + pfe_firmware_name = "util_slowpath"; + break; + } + + if (pfe_get_fw(&raw_image_addr, &raw_image_size, + pfe_firmware_name)) { + printf("%s firmware couldn't be found in FIT image\n", + pfe_firmware_name); + break; + } + pfe_firmware = malloc(raw_image_size); + if (!pfe_firmware) + return -ENOMEM; + memcpy((void *)pfe_firmware, (void *)raw_image_addr, + raw_image_size); + + switch (fw_count) { + case 0: + env_set_addr("class_elf_firmware", pfe_firmware); + env_set_addr("class_elf_size", (void *)raw_image_size); + break; + case 1: + env_set_addr("tmu_elf_firmware", pfe_firmware); + env_set_addr("tmu_elf_size", (void *)raw_image_size); + break; + case 2: + env_set_addr("util_elf_firmware", pfe_firmware); + env_set_addr("util_elf_size", (void *)raw_image_size); + break; + } + } + + raw_image_addr = NULL; + pfe_firmware = NULL; + raw_image_size = 0; for (fw_count = 0; fw_count < 2; fw_count++) { if (fw_count == 0) pfe_firmware_name = "class"; -- cgit v1.1