This patch is to enable u-boot as a payload which runs on top of Slim Bootloader(https://github.com/slimbootloader/slimbootloader) boot firmware for x86 platforms.
Added new SLIMBOOTLOADER SYS/VENDOR/TARGET CONFIG - New arch/x86/cpu/slimbootloader directory with minimum codes - New board/slimbootloader directory with minimum codes - New dts, defconfig and configuration files
Modified x86 files with minimum changes - Kconfig and Makefile to enable new CONFIG - arch_global_data structure to enable hob_list pointer - init_cache_f_r to skip mtrr_commit
Signed-off-by: Aiden Park aiden.park@intel.com --- arch/x86/Kconfig | 5 + arch/x86/cpu/Makefile | 1 + arch/x86/cpu/slimbootloader/Kconfig | 23 ++++ arch/x86/cpu/slimbootloader/Makefile | 5 + arch/x86/cpu/slimbootloader/car.S | 10 ++ arch/x86/cpu/slimbootloader/slimbootloader.c | 117 ++++++++++++++++++ .../cpu/slimbootloader/slimbootloader_hob.c | 67 ++++++++++ .../slimbootloader/slimbootloader_serial.c | 66 ++++++++++ arch/x86/dts/Makefile | 3 +- arch/x86/dts/slimbootloader.dts | 33 +++++ .../asm/arch-slimbootloader/slimbootloader.h | 78 ++++++++++++ arch/x86/include/asm/global_data.h | 2 +- arch/x86/lib/asm-offsets.c | 2 +- arch/x86/lib/init_helpers.c | 2 +- board/slimbootloader/Kconfig | 21 ++++ board/slimbootloader/slimbootloader/Kconfig | 51 ++++++++ board/slimbootloader/slimbootloader/Makefile | 5 + .../slimbootloader/slimbootloader.c | 60 +++++++++ .../slimbootloader/slimbootloader_start.S | 31 +++++ configs/slimbootloader_defconfig | 64 ++++++++++ include/configs/slimbootloader.h | 54 ++++++++ 21 files changed, 696 insertions(+), 4 deletions(-) create mode 100644 arch/x86/cpu/slimbootloader/Kconfig create mode 100644 arch/x86/cpu/slimbootloader/Makefile create mode 100644 arch/x86/cpu/slimbootloader/car.S create mode 100644 arch/x86/cpu/slimbootloader/slimbootloader.c create mode 100644 arch/x86/cpu/slimbootloader/slimbootloader_hob.c create mode 100644 arch/x86/cpu/slimbootloader/slimbootloader_serial.c create mode 100644 arch/x86/dts/slimbootloader.dts create mode 100644 arch/x86/include/asm/arch-slimbootloader/slimbootloader.h create mode 100644 board/slimbootloader/Kconfig create mode 100644 board/slimbootloader/slimbootloader/Kconfig create mode 100644 board/slimbootloader/slimbootloader/Makefile create mode 100644 board/slimbootloader/slimbootloader/slimbootloader.c create mode 100644 board/slimbootloader/slimbootloader/slimbootloader_start.S create mode 100644 configs/slimbootloader_defconfig create mode 100644 include/configs/slimbootloader.h
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 70f939869a..3d57466a63 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -77,6 +77,9 @@ config VENDOR_GOOGLE config VENDOR_INTEL bool "Intel"
+config VENDOR_SLIMBOOTLOADER + bool "slimbootloader" + endchoice
# subarchitectures-specific options below @@ -104,6 +107,7 @@ source "board/efi/Kconfig" source "board/emulation/Kconfig" source "board/google/Kconfig" source "board/intel/Kconfig" +source "board/slimbootloader/Kconfig"
# platform-specific options below source "arch/x86/cpu/baytrail/Kconfig" @@ -116,6 +120,7 @@ source "arch/x86/cpu/qemu/Kconfig" source "arch/x86/cpu/quark/Kconfig" source "arch/x86/cpu/queensbay/Kconfig" source "arch/x86/cpu/tangier/Kconfig" +source "arch/x86/cpu/slimbootloader/Kconfig"
# architecture-specific options below
diff --git a/arch/x86/cpu/Makefile b/arch/x86/cpu/Makefile index 85fd5e616e..a5c0113fa4 100644 --- a/arch/x86/cpu/Makefile +++ b/arch/x86/cpu/Makefile @@ -48,6 +48,7 @@ obj-$(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE) += ivybridge/ obj-$(CONFIG_INTEL_QUARK) += quark/ obj-$(CONFIG_INTEL_QUEENSBAY) += queensbay/ obj-$(CONFIG_INTEL_TANGIER) += tangier/ +obj-$(CONFIG_SYS_SLIMBOOTLOADER) += slimbootloader/ obj-$(CONFIG_APIC) += lapic.o ioapic.o obj-y += irq.o ifndef CONFIG_$(SPL_)X86_64 diff --git a/arch/x86/cpu/slimbootloader/Kconfig b/arch/x86/cpu/slimbootloader/Kconfig new file mode 100644 index 0000000000..e7513afd5b --- /dev/null +++ b/arch/x86/cpu/slimbootloader/Kconfig @@ -0,0 +1,23 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2019 Intel Corporation <www.intel.com> + +if TARGET_SLIMBOOTLOADER + +config SYS_SLIMBOOTLOADER + bool + default y + imply SYS_NS16550 + imply AHCI_PCI + imply SCSI + imply SCSI_AHCI + imply MMC + imply MMC_PCI + imply MMC_SDHCI + imply MMC_SDHCI_SDMA + imply USB + imply USB_EHCI_HCD + imply USB_XHCI_HCD + imply USB_STORAGE + +endif diff --git a/arch/x86/cpu/slimbootloader/Makefile b/arch/x86/cpu/slimbootloader/Makefile new file mode 100644 index 0000000000..45a62d5e43 --- /dev/null +++ b/arch/x86/cpu/slimbootloader/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2019 Intel Corporation <www.intel.com> + +obj-y += car.o slimbootloader.o slimbootloader_hob.o slimbootloader_serial.o diff --git a/arch/x86/cpu/slimbootloader/car.S b/arch/x86/cpu/slimbootloader/car.S new file mode 100644 index 0000000000..5d71cf7034 --- /dev/null +++ b/arch/x86/cpu/slimbootloader/car.S @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2019 Intel Corporation <www.intel.com> + */ + +.section .text + +.globl car_init +car_init: + jmp car_init_ret diff --git a/arch/x86/cpu/slimbootloader/slimbootloader.c b/arch/x86/cpu/slimbootloader/slimbootloader.c new file mode 100644 index 0000000000..86bae393b3 --- /dev/null +++ b/arch/x86/cpu/slimbootloader/slimbootloader.c @@ -0,0 +1,117 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019 Intel Corporation <www.intel.com> + */ + +#include <common.h> +#include <asm/e820.h> +#include <asm/arch/slimbootloader.h> + +DECLARE_GLOBAL_DATA_PTR; + +int arch_cpu_init(void) +{ + return x86_cpu_init_f(); +} + +int checkcpu(void) +{ + return 0; +} + +int print_cpuinfo(void) +{ + return default_print_cpuinfo(); +} + +ulong board_get_usable_ram_top(ulong total_size) +{ + struct memory_map_info *data = NULL; + const struct efi_guid guid = LOADER_MEMORY_MAP_INFO_GUID; + int i = 0; + phys_addr_t addr_max = 0; + phys_addr_t addr_end = 0; + phys_addr_t size_max = 0; + phys_addr_t size_cur = 0; + + data = (struct memory_map_info *) + get_guid_hob_data_len(gd->arch.hob_list, NULL, &guid); + if (!data) { + debug("memory map info hob not found\n"); + return gd->ram_size; + } + + for (i = 0; i < data->count; i++) { + if (data->entry[i].type == E820_RAM) { + size_cur = data->entry[i].size; + addr_end = data->entry[i].addr + size_cur; + if (addr_end < 1ULL << 32 && size_cur > size_max) { + size_max = size_cur; + addr_max = addr_end; + } + } + } + + return addr_max; +} + +int dram_init(void) +{ + struct memory_map_info *data = NULL; + const struct efi_guid guid = LOADER_MEMORY_MAP_INFO_GUID; + int i = 0; + phys_addr_t addr_max = 0; + phys_addr_t addr_end = 0; + + data = (struct memory_map_info *) + get_guid_hob_data_len(gd->arch.hob_list, NULL, &guid); + if (!data) { + debug("memory map info hob not found\n"); + return -1; + } + + for (i = 0; i < data->count; i++) { + if (data->entry[i].type == E820_RAM) { + addr_end = data->entry[i].addr + data->entry[i].size; + if (addr_end > addr_max) + addr_max = addr_end; + } + } + + gd->ram_size = (unsigned long)addr_max; + + return 0; +} + +int dram_init_banksize(void) +{ + gd->bd->bi_dram[0].start = 0; + gd->bd->bi_dram[0].size = gd->ram_size; + + return 0; +} + +unsigned int install_e820_map(unsigned int max_entries, + struct e820_entry *entries) +{ + struct memory_map_info *data = NULL; + const struct efi_guid guid = LOADER_MEMORY_MAP_INFO_GUID; + int i = 0; + unsigned int num_entries = 0; + + data = (struct memory_map_info *) + get_guid_hob_data_len(gd->arch.hob_list, NULL, &guid); + if (!data) { + debug("memory map info hob not found\n"); + return 0; + } + + for (i = 0; i < data->count; i++) { + entries[num_entries].addr = data->entry[i].addr; + entries[num_entries].size = data->entry[i].size; + entries[num_entries].type = data->entry[i].type; + num_entries++; + } + + return num_entries; +} diff --git a/arch/x86/cpu/slimbootloader/slimbootloader_hob.c b/arch/x86/cpu/slimbootloader/slimbootloader_hob.c new file mode 100644 index 0000000000..dd1a19757f --- /dev/null +++ b/arch/x86/cpu/slimbootloader/slimbootloader_hob.c @@ -0,0 +1,67 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019 Intel Corporation <www.intel.com> + */ + +#include <common.h> +#include <asm/fsp/fsp_types.h> +#include <asm/fsp/fsp_hob.h> + +bool compare_guid(const struct efi_guid *guid1, + const struct efi_guid *guid2) +{ + if (memcmp(guid1, guid2, sizeof(struct efi_guid)) == 0) + return true; + else + return false; +} + +const struct hob_header *get_next_hob_from_hdr(uint type, + const void *hob_list) +{ + const struct hob_header *hdr; + + hdr = hob_list; + + /* Parse the HOB list until end of list or matching type is found */ + while (!end_of_hob(hdr)) { + if (hdr->type == type) + return hdr; + + hdr = get_next_hob(hdr); + } + + return NULL; +} + +const struct hob_header *get_next_guid_hob(const struct efi_guid *guid, + const void *hob_list) +{ + const struct hob_header *hdr; + struct hob_guid *guid_hob; + + hdr = hob_list; + while ((hdr = get_next_hob_from_hdr(HOB_TYPE_GUID_EXT, hdr)) != NULL) { + guid_hob = (struct hob_guid *)hdr; + if (compare_guid(guid, &guid_hob->name)) + break; + hdr = get_next_hob(hdr); + } + + return hdr; +} + +void *get_guid_hob_data_len(const void *hob_list, u32 *len, + const struct efi_guid *guid) +{ + const struct hob_header *guid_hob; + + guid_hob = get_next_guid_hob(guid, hob_list); + if (!guid_hob) + return NULL; + + if (len) + *len = get_guid_hob_data_size(guid_hob); + + return get_guid_hob_data(guid_hob); +} diff --git a/arch/x86/cpu/slimbootloader/slimbootloader_serial.c b/arch/x86/cpu/slimbootloader/slimbootloader_serial.c new file mode 100644 index 0000000000..81bd085a35 --- /dev/null +++ b/arch/x86/cpu/slimbootloader/slimbootloader_serial.c @@ -0,0 +1,66 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019 Intel Corporation <www.intel.com> + */ + +#include <common.h> +#include <dm.h> +#include <ns16550.h> +#include <serial.h> +#include <asm/arch/slimbootloader.h> + +#if CONFIG_IS_ENABLED(DM_SERIAL) +#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA) +int slimbootloader_serial_ofdata_to_platdata(struct udevice *dev) +{ + const struct efi_guid guid = LOADER_SERIAL_PORT_INFO_GUID; + struct serial_port_info *serial_info = NULL; + struct ns16550_platdata *plat = dev->platdata; + + if (!gd->arch.hob_list) { + debug("hoblist not found\n"); + return -1; + } + + serial_info = (struct serial_port_info *) + get_guid_hob_data_len(gd->arch.hob_list, NULL, &guid); + + if (!serial_info) { + debug("failed to get serial port information\n"); + return -1; + } + debug("type:%d base=0x%08x baudrate=%d stride=%d clk=%d\n", + serial_info->type, + serial_info->base, + serial_info->baud, + serial_info->stride, + serial_info->clk); + + plat->base = serial_info->base; + plat->reg_shift = (serial_info->stride >> 1); + plat->clock = serial_info->clk; + + return 0; +} + +static const struct udevice_id slimbootloader_serial_ids[] = { + { .compatible = "intel,slimbootloader-uart" }, + {} +}; +#endif /* OF_CONTROL && !OF_PLATDATA */ + +#if CONFIG_IS_ENABLED(SERIAL_PRESENT) +U_BOOT_DRIVER(serial_slimbootloader) = { + .name = "serial_slimbootloader", + .id = UCLASS_SERIAL, +#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA) + .of_match = slimbootloader_serial_ids, + .ofdata_to_platdata = slimbootloader_serial_ofdata_to_platdata, + .platdata_auto_alloc_size = sizeof(struct ns16550_platdata), +#endif + .priv_auto_alloc_size = sizeof(struct NS16550), + .probe = ns16550_serial_probe, + .ops = &ns16550_serial_ops, +}; +#endif /* SERIAL_PRESENT */ +#endif /* DM_SERIAL */ diff --git a/arch/x86/dts/Makefile b/arch/x86/dts/Makefile index fa717bc096..7c382f416b 100644 --- a/arch/x86/dts/Makefile +++ b/arch/x86/dts/Makefile @@ -18,7 +18,8 @@ dtb-y += bayleybay.dtb \ qemu-x86_i440fx.dtb \ qemu-x86_q35.dtb \ theadorable-x86-dfi-bt700.dtb \ - baytrail_som-db5800-som-6867.dtb + baytrail_som-db5800-som-6867.dtb \ + slimbootloader.dtb
targets += $(dtb-y)
diff --git a/arch/x86/dts/slimbootloader.dts b/arch/x86/dts/slimbootloader.dts new file mode 100644 index 0000000000..c8eec610a8 --- /dev/null +++ b/arch/x86/dts/slimbootloader.dts @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019 Intel Corporation <www.intel.com> + */ + +/dts-v1/; + +/include/ "skeleton.dtsi" +/include/ "keyboard.dtsi" +/include/ "reset.dtsi" +/include/ "rtc.dtsi" +/include/ "tsc_timer.dtsi" + +/ { + model = "slimbootloader x86 payload"; + compatible = "slimbootloader,x86-payload"; + + config { + silent_console = <0>; + }; + + chosen { + stdout-path = &serial; + }; + + serial: serial { + compatible = "intel,slimbootloader-uart"; + }; + + pci { + compatible = "pci-x86"; + }; +}; diff --git a/arch/x86/include/asm/arch-slimbootloader/slimbootloader.h b/arch/x86/include/asm/arch-slimbootloader/slimbootloader.h new file mode 100644 index 0000000000..d9edaa5e36 --- /dev/null +++ b/arch/x86/include/asm/arch-slimbootloader/slimbootloader.h @@ -0,0 +1,78 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2019 Intel Corporation <www.intel.com> + */ + +#ifndef __SLIMBOOTLOADER_ARCH_H__ +#define __SLIMBOOTLOADER_ARCH_H__ + +#include <common.h> +#include <asm/fsp/fsp_types.h> +#include <asm/fsp/fsp_hob.h> + +#define LOADER_SERIAL_PORT_INFO_GUID \ + { \ + 0x6c6872fe, 0x56a9, 0x4403, \ + { 0xbb, 0x98, 0x95, 0x8d, 0x62, 0xde, 0x87, 0xf1 } \ + } + +#define LOADER_MEMORY_MAP_INFO_GUID \ + { \ + 0xa1ff7424, 0x7a1a, 0x478e, \ + { 0xa9, 0xe4, 0x92, 0xf3, 0x57, 0xd1, 0x28, 0x32 } \ + } + +#define LOADER_PERFORMANCE_INFO_GUID \ + { \ + 0x868204be, 0x23d0, 0x4ff9, \ + { 0xac, 0x34, 0xb9, 0x95, 0xac, 0x04, 0xb1, 0xb9 } \ + } + +struct performance_info { + u8 rev; + u8 rsvd0[3]; + u16 count; + u16 flags; + u32 frequency; + u64 timestamp[0]; +} __packed; + +struct memory_map_entry { + phys_addr_t addr; + phys_size_t size; + u8 type; + u8 flag; + u8 rsvd[6]; +} __packed; + +struct memory_map_info { + u8 rev; + u8 rsvd0[3]; + u32 count; + struct memory_map_entry entry[0]; +} __packed; + +struct serial_port_info { + u8 rev; + u8 rsvd0[3]; + u32 type; + u32 base; + u32 baud; + u32 stride; + u32 clk; + u32 rsvd1; +} __packed; + +bool compare_guid(const struct efi_guid *guid1, + const struct efi_guid *guid2); + +const struct hob_header *get_next_hob_from_hdr(uint type, + const void *hob_list); + +const struct hob_header *get_next_guid_hob(const struct efi_guid *guid, + const void *hob_list); + +void *get_guid_hob_data_len(const void *hob_list, u32 *len, + const struct efi_guid *guid); + +#endif diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h index 9398ec33b2..674efaaa01 100644 --- a/arch/x86/include/asm/global_data.h +++ b/arch/x86/include/asm/global_data.h @@ -83,7 +83,7 @@ struct arch_global_data { const struct pch_gpio_map *gpio_map; /* board GPIO map */ struct memory_info meminfo; /* Memory information */ struct pei_memory_info pei_meminfo; /* PEI memory information */ -#ifdef CONFIG_HAVE_FSP +#if defined(CONFIG_HAVE_FSP) || defined(CONFIG_SYS_SLIMBOOTLOADER) void *hob_list; /* FSP HOB list */ #endif struct mtrr_request mtrr_req[MAX_MTRR_REQUESTS]; diff --git a/arch/x86/lib/asm-offsets.c b/arch/x86/lib/asm-offsets.c index 90dce22b25..258c0bbc2c 100644 --- a/arch/x86/lib/asm-offsets.c +++ b/arch/x86/lib/asm-offsets.c @@ -17,7 +17,7 @@ int main(void) { DEFINE(GD_BIST, offsetof(gd_t, arch.bist)); -#ifdef CONFIG_HAVE_FSP +#if defined(CONFIG_HAVE_FSP) || defined(CONFIG_SYS_SLIMBOOTLOADER) DEFINE(GD_HOB_LIST, offsetof(gd_t, arch.hob_list)); #endif DEFINE(GD_TABLE, offsetof(gd_t, arch.table)); diff --git a/arch/x86/lib/init_helpers.c b/arch/x86/lib/init_helpers.c index ac85278cdf..2c6e6a4252 100644 --- a/arch/x86/lib/init_helpers.c +++ b/arch/x86/lib/init_helpers.c @@ -21,7 +21,7 @@ int init_cache_f_r(void) #if (CONFIG_IS_ENABLED(X86_32BIT_INIT) || \ (!defined(CONFIG_SPL_BUILD) && \ !CONFIG_IS_ENABLED(CONFIG_X86_RUN_64BIT))) && \ - !defined(CONFIG_HAVE_FSP) + !defined(CONFIG_HAVE_FSP) && !defined(CONFIG_SYS_SLIMBOOTLOADER) int ret;
ret = mtrr_commit(false); diff --git a/board/slimbootloader/Kconfig b/board/slimbootloader/Kconfig new file mode 100644 index 0000000000..4822c451e6 --- /dev/null +++ b/board/slimbootloader/Kconfig @@ -0,0 +1,21 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2019 Intel Corporation <www.intel.com> + +if VENDOR_SLIMBOOTLOADER + +choice + prompt "Select a board" + optional + +config TARGET_SLIMBOOTLOADER + bool "slimbootloader" + help + This target is used for running U-Boot on top of + Slim Bootloader as a payload. + +endchoice + +source "board/slimbootloader/slimbootloader/Kconfig" + +endif diff --git a/board/slimbootloader/slimbootloader/Kconfig b/board/slimbootloader/slimbootloader/Kconfig new file mode 100644 index 0000000000..7262f2bf1b --- /dev/null +++ b/board/slimbootloader/slimbootloader/Kconfig @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2019 Intel Corporation <www.intel.com> + +if TARGET_SLIMBOOTLOADER + +config SYS_BOARD + default "slimbootloader" + +config SYS_VENDOR + default "slimbootloader" + +config SYS_SOC + default "slimbootloader" + +config SYS_TEXT_BASE + default 0x00100000 + +comment "slimbootloader-specific options" + +config SYS_CONFIG_NAME + string "Board configuration file" + default "slimbootloader" + help + This option selects the board configuration file in include/configs/ + directory to be used to build U-Boot for Slim Bootloader. + +config DEFAULT_DEVICE_TREE + string "Board Device Tree Source (dts) file" + default "slimbootloader" + help + This option selects the board Device Tree Source (dts) file in + arch/x86/dts/ directory to be used to build U-Boot for Slim Bootloader. + +config SYS_CAR_ADDR + hex "Board specific Cache-As-RAM (CAR) address" + default 0x00000000 + help + This option specifies the board specific Cache-As-RAM (CAR) address. + But, CAR is not required for Slim Bootloader environment since it + has already initialized memory and launched u-boot as a payload. + +config SYS_CAR_SIZE + hex "Board specific Cache-As-RAM (CAR) size" + default 0x0000 + help + This option specifies the board specific Cache-As-RAM (CAR) size. + But, CAR is not required for Slim Bootloader environment since it + has already initialized memory and launched u-boot as a payload. + +endif diff --git a/board/slimbootloader/slimbootloader/Makefile b/board/slimbootloader/slimbootloader/Makefile new file mode 100644 index 0000000000..f591943a78 --- /dev/null +++ b/board/slimbootloader/slimbootloader/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2019 Intel Corporation <www.intel.com> + +obj-y += slimbootloader_start.o slimbootloader.o diff --git a/board/slimbootloader/slimbootloader/slimbootloader.c b/board/slimbootloader/slimbootloader/slimbootloader.c new file mode 100644 index 0000000000..653e6ec077 --- /dev/null +++ b/board/slimbootloader/slimbootloader/slimbootloader.c @@ -0,0 +1,60 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019 Intel Corporation <www.intel.com> + */ + +#include <common.h> +#include <debug_uart.h> +#include <asm/io.h> +#include <asm/arch/slimbootloader.h> +#include <relocate.h> +#include <dm.h> +#include <ns16550.h> + +DECLARE_GLOBAL_DATA_PTR; + +static void board_early_init_tsc(void) +{ + struct performance_info *data = NULL; + const struct efi_guid guid = LOADER_PERFORMANCE_INFO_GUID; + + gd->arch.tsc_base = rdtsc(); + debug("tsc_base=0x%llx\n", gd->arch.tsc_base); + + data = (struct performance_info *) + get_guid_hob_data_len(gd->arch.hob_list, NULL, &guid); + + if (!data) { + debug("performance info hob not found\n"); + return; + } + gd->arch.clock_rate = data->frequency * 1000; + debug("freq=0x%lx\n", gd->arch.clock_rate); +} + +int board_early_init_f(void) +{ + return 0; +} + +int arch_early_init_r(void) +{ + return 0; +} + +int board_early_init_r(void) +{ + pci_init(); + return 0; +} + +int slimbootloader_main(void) +{ + debug("%s\n", __func__); + debug("hoblist=0x%p\n", gd->arch.hob_list); + board_early_init_tsc(); + board_init_f(0); + board_init_f_r_trampoline(gd->start_addr_sp); + + return 0; +} diff --git a/board/slimbootloader/slimbootloader/slimbootloader_start.S b/board/slimbootloader/slimbootloader/slimbootloader_start.S new file mode 100644 index 0000000000..d884708b69 --- /dev/null +++ b/board/slimbootloader/slimbootloader/slimbootloader_start.S @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2019 Intel Corporation <www.intel.com> + */ + +#include <generated/asm-offsets.h> + +.globl slimbootloader_start +slimbootloader_start: + mov 0x4(%esp), %esi + + /* Set up global data */ + mov %esp, %eax + call board_init_f_alloc_reserve + mov %eax, %esp + call board_init_f_init_reserve + +#ifdef CONFIG_DEBUG_UART + call debug_uart_init +#endif + + /* Get address of global_data */ + mov %fs:0, %edx + + movl %esi, GD_HOB_LIST(%edx) + call slimbootloader_main + +/* board early initialization */ +.globl early_board_init +early_board_init: + jmp slimbootloader_start diff --git a/configs/slimbootloader_defconfig b/configs/slimbootloader_defconfig new file mode 100644 index 0000000000..77ff3257b6 --- /dev/null +++ b/configs/slimbootloader_defconfig @@ -0,0 +1,64 @@ +CONFIG_X86=y +CONFIG_VENDOR_SLIMBOOTLOADER=y +CONFIG_TARGET_SLIMBOOTLOADER=y +CONFIG_X86_LOAD_FROM_32_BIT=y +CONFIG_REGMAP=y +CONFIG_SYSCON=y +CONFIG_SYS_CONSOLE_INFO_QUIET=y +CONFIG_BOARD_EARLY_INIT_R=y +CONFIG_LAST_STAGE_INIT=y +CONFIG_HUSH_PARSER=y +CONFIG_CMD_MMC=y +CONFIG_CMD_EXT2=y +CONFIG_CMD_FAT=y +CONFIG_CMD_USB=y +CONFIG_DOS_PARTITION=y +CONFIG_EFI_PARTITION=y +CONFIG_OF_CONTROL=y +CONFIG_OF_EMBED=y +CONFIG_BOOTSTAGE=y +CONFIG_BOOTSTAGE_REPORT=y +CONFIG_BOOTDELAY=10 +CONFIG_CONSOLE_SCROLL_LINES=5 +# CONFIG_PCI_PNP is not set +# CONFIG_I8259_PIC is not set +# CONFIG_APIC is not set +# CONFIG_CMD_EXT4_WRITE is not set +# CONFIG_CMD_FS_GENERIC is not set +# CONFIG_CMD_PART is not set +# CONFIG_CMD_TIME is not set +# CONFIG_CMD_BOOTSTAGE is not set +# CONFIG_CMD_DM is not set +# CONFIG_CMD_FLASH is not set +# CONFIG_CMD_LOADB is not set +# CONFIG_CMD_LOADS is not set +# CONFIG_CMD_SF_TEST is not set +# CONFIG_CMD_ECHO is not set +# CONFIG_CMD_ITEST is not set +# CONFIG_CMD_SETEXPR is not set +# CONFIG_CMD_NET is not set +# CONFIG_CMD_BOOTP is not set +# CONFIG_CMD_BLOCK_CACHE is not set +# CONFIG_CMD_DATE is not set +# CONFIG_CMD_GETTIME is not set +# CONFIG_CMD_MISC is not set +# CONFIG_CMD_IRQ is not set +# CONFIG_CMD_ELF is not set +# CONFIG_CMD_IMI is not set +# CONFIG_CMD_XIMG is not set +# CONFIG_CMD_EXPORTENV is not set +# CONFIG_CMD_IMPORTENV is not set +# CONFIG_CMD_FDT is not set +# CONFIG_CMD_GO is not set +# CONFIG_CMD_SAVEENV is not set +# CONFIG_CMD_SOURCE is not set +# CONFIG_DM_KEYBOARD is not set +# CONFIG_DM_VIDEO is not set +# CONFIG_DM_GPIO is not set +# CONFIG_MMC_VERBOSE is not set +# CONFIG_GZIP is not set +# CONFIG_HEXDUMP is not set +# CONFIG_EFI_LOADER is not set +# CONFIG_GENERATE_SMBIOS_TABLE is not set +# CONFIG_IMAGE_FORMAT_LEGACY is not set +# CONFIG_FIT is not set diff --git a/include/configs/slimbootloader.h b/include/configs/slimbootloader.h new file mode 100644 index 0000000000..bfd188de2c --- /dev/null +++ b/include/configs/slimbootloader.h @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2019 Intel Corporation <www.intel.com> + */ + +#ifndef __SLIMBOOTLOADER_CONFIG_H__ +#define __SLIMBOOTLOADER_CONFIG_H__ + +#include <configs/x86-common.h> + +#undef CONFIG_NFSBOOTCOMMAND +#undef CONFIG_RAMBOOTCOMMAND +#undef CONFIG_EXTRA_ENV_SETTINGS +#undef CONFIG_BOOTCOMMAND + +/*----------------------------------------------------------------------- + * For MEM32 uart + */ +/*#define CONFIG_SYS_NS16550_MEM32*/ +#ifdef CONFIG_SYS_NS16550_MEM32 +#undef CONFIG_SYS_NS16550_PORT_MAPPED +#endif + +#define CONFIG_STD_DEVICES_SETTINGS \ + "stdin=serial,i8042-kbd,usbkbd\0" \ + "stdout=serial\0" \ + "stderr=serial\0" + +#define CONFIG_EXTRA_ENV_SETTINGS \ + CONFIG_STD_DEVICES_SETTINGS \ + "netdev=eth0\0" \ + "consoledev=ttyS0\0" \ + "ramdiskaddr=0x4000000\0" \ + "ramdiskfile=initrd\0" \ + "bootdev=usb\0" \ + "bootdevnum=0\0" \ + "bootdevpart=0\0" \ + "bootfsload=fatload\0" \ + "bootusb=setenv bootdev usb; boot\0" \ + "bootscsi=setenv bootdev scsi; boot\0" \ + "bootmmc=setenv bootdev mmc; boot\0" \ + "bootargs=console=ttyS0,115200 console=tty0\0" + +#define CONFIG_BOOTCOMMAND \ + "if test ${bootdev} = "usb"; then ${bootdev} start; fi; " \ + "if test ${bootdev} = "scsi"; then ${bootdev} scan; fi; " \ + "${bootdev} info; " \ + "${bootfsload} ${bootdev} ${bootdevnum}:${bootdevpart} " \ + "${loadaddr} ${bootfile}; " \ + "${bootfsload} ${bootdev} ${bootdevnum}:${bootdevpart} " \ + "${ramdiskaddr} ${ramdiskfile}; " \ + "zboot ${loadaddr} 0 ${ramdiskaddr} ${filesize}" + +#endif /* __SLIMBOOTLOADER_CONFIG_H__ */