Add support to load the bl31 part of the ARM Trusted Firmware by the SPL.
Signed-off-by: Michael Walle michael@walle.cc --- .../dts/fsl-ls1028a-kontron-sl28-u-boot.dtsi | 41 +++++++++++++- board/kontron/sl28/Kconfig | 10 ++++ board/kontron/sl28/Makefile | 6 ++- board/kontron/sl28/spl_atf.c | 54 +++++++++++++++++++ 4 files changed, 109 insertions(+), 2 deletions(-) create mode 100644 board/kontron/sl28/spl_atf.c
diff --git a/arch/arm/dts/fsl-ls1028a-kontron-sl28-u-boot.dtsi b/arch/arm/dts/fsl-ls1028a-kontron-sl28-u-boot.dtsi index 87e14d6ae6..54ef0b4258 100644 --- a/arch/arm/dts/fsl-ls1028a-kontron-sl28-u-boot.dtsi +++ b/arch/arm/dts/fsl-ls1028a-kontron-sl28-u-boot.dtsi @@ -16,7 +16,7 @@ ethernet3 = &enetc6; };
- binman { + binman: binman { filename = "u-boot.rom"; pad-byte = <0xff>;
@@ -99,6 +99,45 @@ }; };
+#ifdef CONFIG_SL28_SPL_LOADS_ATF_BL31 +&binman { + fit { + images { + bl31 { + description = "ARM Trusted Firmware (bl31)"; + type = "firmware"; + arch = "arm"; + os = "arm-trusted-firmware"; + compression = "none"; + load = <CONFIG_SL28_BL31_ENTRY_ADDR>; + entry = <CONFIG_SL28_BL31_ENTRY_ADDR>; + + blob-ext { + filename = "bl31.bin"; + }; + }; + }; + + configurations { + conf-1 { + firmware = "bl31"; + loadables = "uboot"; + }; + + conf-2 { + firmware = "bl31"; + loadables = "uboot"; + }; + + conf-3 { + firmware = "bl31"; + loadables = "uboot"; + }; + }; + }; +}; +#endif + &i2c0 { rtc: rtc@32 { }; diff --git a/board/kontron/sl28/Kconfig b/board/kontron/sl28/Kconfig index cdec39be01..aba49fc115 100644 --- a/board/kontron/sl28/Kconfig +++ b/board/kontron/sl28/Kconfig @@ -15,4 +15,14 @@ config SYS_CONFIG_NAME config SYS_TEXT_BASE default 0x96000000
+config SL28_SPL_LOADS_ATF_BL31 + bool "SPL loads BL31 of the ARM Trusted Firmware" + select SPL_ATF + select SPL_ATF_LOAD_IMAGE_V2 + select ARMV8_SEC_FIRMWARE_SUPPORT + select SEC_FIRMWARE_ARMV8_PSCI + help + Enable this to load a BL31 image by the SPL. You have to + provde a bl31.bin in u-boot's root directory. + endif diff --git a/board/kontron/sl28/Makefile b/board/kontron/sl28/Makefile index 74d8012f0f..5d220f0744 100644 --- a/board/kontron/sl28/Makefile +++ b/board/kontron/sl28/Makefile @@ -5,4 +5,8 @@ obj-y += sl28.o cmds.o endif
obj-y += common.o ddr.o -obj-$(CONFIG_SPL_BUILD) += spl.o + +ifdef CONFIG_SPL_BUILD +obj-y += spl.o +obj-$(CONFIG_SPL_ATF) += spl_atf.o +endif diff --git a/board/kontron/sl28/spl_atf.c b/board/kontron/sl28/spl_atf.c new file mode 100644 index 0000000000..5438b5239c --- /dev/null +++ b/board/kontron/sl28/spl_atf.c @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * LS1028A TF-A calling support + * + * Copyright (c) 2020 Michael Walle michael@walle.cc + */ + +#include <common.h> +#include <asm/io.h> +#include <atf_common.h> +#include <spl.h> + +DECLARE_GLOBAL_DATA_PTR; + +struct region_info { + u64 addr; + u64 size; +}; + +struct dram_regions_info { + u64 num_dram_regions; + u64 total_dram_size; + struct region_info region[CONFIG_NR_DRAM_BANKS]; +}; + +struct bl_params *bl2_plat_get_bl31_params_v2(uintptr_t bl32_entry, + uintptr_t bl33_entry, + uintptr_t fdt_addr) +{ + static struct dram_regions_info dram_regions_info = { 0 }; + struct bl_params *bl_params; + struct bl_params_node *node; + void *dcfg_ccsr = (void *)DCFG_BASE; + int i; + + dram_regions_info.num_dram_regions = CONFIG_NR_DRAM_BANKS; + for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { + dram_regions_info.region[i].addr = gd->bd->bi_dram[i].start; + dram_regions_info.region[i].size = gd->bd->bi_dram[i].size; + dram_regions_info.total_dram_size += gd->bd->bi_dram[i].size; + } + + bl_params = bl2_plat_get_bl31_params_v2_default(bl32_entry, bl33_entry, + fdt_addr); + + for_each_bl_params_node(bl_params, node) { + if (node->image_id == ATF_BL31_IMAGE_ID) { + node->ep_info->args.arg3 = (uintptr_t)&dram_regions_info; + node->ep_info->args.arg4 = in_le32(dcfg_ccsr + DCFG_PORSR1); + } + } + + return bl_params; +}