board: intel: Add new slimbootloader board

Add slimbootloader board to run U-boot as a Slim Bootloader payload
- Add new board/intel/slimbootloader directory with minimum codes
- Add slimbootloader configuration files
- Add doc/board/intel/slimbootloader.rst

Signed-off-by: Aiden Park <aiden.park@intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: add slimbootloader board MAINTAINERS file]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

diff --git a/board/intel/Kconfig b/board/intel/Kconfig
index 5131836cb06d2b272da4fee2f3af3cfa3807344e..7b16ec4dc126914dd8c6c60a3742d70723d48b1c 100644 (file)
--- a/board/intel/Kconfig
+++ b/board/intel/Kconfig
@@ -73,6 +73,19 @@ config TARGET_MINNOWMAX
          Note that PCIE_ECAM_BASE is set up by the FSP so the value used
          by U-Boot matches that value.
 
+config TARGET_SLIMBOOTLOADER
+       bool "slimbootloader"
+       help
+         This target is used for running U-Boot on top of Slim Bootloader
+         boot firmware as a payload. Slim Bootloader does memory initialization
+         and silicon initialization, and it passes necessary information in
+         HOB (Hand Off Block) to a payload. The payload consumes HOB data
+         which is generated by Slim Bootloader for its driver initialization.
+         Slim Bootloader consumes FSP and its HOB, but FSP HOB is cleared
+         Before launching a payload. Instead, Slim Bootloader generates its
+         HOB data such as memory info, serial port info and so on.
+         Refer to doc/board/intel/slimbootloader.rst for the details.
+
 endchoice
 
 source "board/intel/bayleybay/Kconfig"
@@ -82,5 +95,6 @@ source "board/intel/crownbay/Kconfig"
 source "board/intel/edison/Kconfig"
 source "board/intel/galileo/Kconfig"
 source "board/intel/minnowmax/Kconfig"
+source "board/intel/slimbootloader/Kconfig"
 
 endif

diff --git a/board/intel/slimbootloader/Kconfig b/board/intel/slimbootloader/Kconfig
new file mode 100644 (file)
index 0000000..8c7e22c
--- /dev/null
+++ b/board/intel/slimbootloader/Kconfig
@@ -0,0 +1,28 @@
+# 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 "intel"
+
+config SYS_SOC
+       default "slimbootloader"
+
+config SYS_CONFIG_NAME
+       default "slimbootloader"
+
+config SYS_TEXT_BASE
+       default 0x00100000
+
+config BOARD_SPECIFIC_OPTIONS
+       def_bool y
+       select SYS_SLIMBOOTLOADER
+       select USB_STORAGE
+       select USB_KEYBOARD
+
+endif

diff --git a/board/intel/slimbootloader/MAINTAINERS b/board/intel/slimbootloader/MAINTAINERS
new file mode 100644 (file)
index 0000000..e693551
--- /dev/null
+++ b/board/intel/slimbootloader/MAINTAINERS
@@ -0,0 +1,6 @@
+Intel Slim Bootloader Payload
+M:     Aiden Park <aiden.park@intel.com>
+S:     Maintained
+F:     board/intel/slimbootloader
+F:     include/configs/slimbootloader.h
+F:     configs/slimbootloader_defconfig

diff --git a/board/intel/slimbootloader/Makefile b/board/intel/slimbootloader/Makefile
new file mode 100644 (file)
index 0000000..fd8fa98
--- /dev/null
+++ b/board/intel/slimbootloader/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2019 Intel Corporation <www.intel.com>
+
+obj-y  += start.o slimbootloader.o

diff --git a/board/intel/slimbootloader/slimbootloader.c b/board/intel/slimbootloader/slimbootloader.c
new file mode 100644 (file)
index 0000000..f50eeb8
--- /dev/null
+++ b/board/intel/slimbootloader/slimbootloader.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Intel Corporation <www.intel.com>
+ */
+
+#include <common.h>
+
+int board_early_init_r(void)
+{
+       /*
+        * Make sure PCI bus is enumerated so that peripherals on the PCI bus
+        * can be discovered by their drivers.
+        *
+        * Slim Bootloader has already done PCI bus enumeration before loading
+        * U-Boot, so U-Boot needs to preserve PCI configuration.
+        * Therefore, '# CONFIG_PCI_PNP is not set' is included in defconfig.
+        */
+       pci_init();
+
+       return 0;
+}

diff --git a/board/intel/slimbootloader/start.S b/board/intel/slimbootloader/start.S
new file mode 100644 (file)
index 0000000..5c3f3df
--- /dev/null
+++ b/board/intel/slimbootloader/start.S
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2019 Intel Corporation <www.intel.com>
+ */
+
+/* board early initialization */
+.globl early_board_init
+early_board_init:
+       jmp     early_board_init_ret

diff --git a/configs/slimbootloader_defconfig b/configs/slimbootloader_defconfig
new file mode 100644 (file)
index 0000000..b16ed71
--- /dev/null
+++ b/configs/slimbootloader_defconfig
@@ -0,0 +1,22 @@
+CONFIG_X86=y
+CONFIG_VENDOR_INTEL=y
+CONFIG_TARGET_SLIMBOOTLOADER=y
+CONFIG_DEFAULT_DEVICE_TREE="slimbootloader"
+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_BOOTSTAGE=y
+CONFIG_BOOTSTAGE_REPORT=y
+CONFIG_BOOTDELAY=10
+CONFIG_CONSOLE_SCROLL_LINES=5
+# CONFIG_PCI_PNP is not set

diff --git a/doc/board/intel/index.rst b/doc/board/intel/index.rst
index f416801910e7473c27543c22d2d090c2d21cac5f..f545dee87aba2813d18078e7e159f58448651355 100644 (file)
--- a/doc/board/intel/index.rst
+++ b/doc/board/intel/index.rst
@@ -13,3 +13,4 @@ Intel
    edison
    galileo
    minnowmax
+   slimbootloader

diff --git a/doc/board/intel/slimbootloader.rst b/doc/board/intel/slimbootloader.rst
new file mode 100644 (file)
index 0000000..4a46fed
--- /dev/null
+++ b/doc/board/intel/slimbootloader.rst
@@ -0,0 +1,174 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. sectionauthor:: Aiden Park <aiden.park@intel.com>
+
+Slim Bootloader
+===============
+
+Introduction
+------------
+
+This target is to enable U-Boot_ as a payload of `Slim Bootloader`_ (a.k.a SBL)
+boot firmware which currently supports QEMU, Apollolake, Whiskeylake,
+Coffeelake-R platforms.
+
+The `Slim Bootloader`_ is designed with multi-stages (Stage1A/B, Stage2, Payload)
+architecture to cover from reset vector to OS booting and it consumes
+`Intel FSP`_ for silicon initialization.
+
+* Stage1A: Reset vector, CAR init with FSP-T
+* Stage1B: Memory init with FSP-M, CAR teardown, Continue execution in memory
+* Stage2 : Rest of Silicon init with FSP-S, Create HOB, Hand-off to Payload
+* Payload: Payload init with HOB, Load OS from media, Booting OS
+
+The Slim Bootloader stages (Stage1A/B, Stage2) focus on chipset, hardware and
+platform specific initialization, and it provides useful information to a
+payload in a HOB (Hand-Off Block) which has serial port, memory map, performance
+data info and so on. This is Slim Bootloader architectural design to make a
+payload light-weight, platform independent and more generic across different
+boot solutions or payloads, and to minimize hardware re-initialization in a
+payload.
+
+Build Instruction for U-Boot as a Slim Bootloader payload
+---------------------------------------------------------
+
+Build U-Boot and obtain u-boot-dtb.bin::
+
+   $ make distclean
+   $ make slimbootloader_defconfig
+   $ make all
+
+Prepare Slim Bootloader
+-----------------------
+
+1. Setup Build Environment for Slim Bootloader.
+
+   Refer to `Getting Started`_ page in `Slim Bootloader`_ document site.
+
+2. Get source code. Let's simply clone the repo::
+
+   $ git clone https://github.com/slimbootloader/slimbootloader.git
+
+3. Copy u-boot-dtb.bin to Slim Bootloader.
+   Slim Bootloader looks for a payload from the specific location.
+   Copy the build u-boot-dtb.bin to the expected location::
+
+   $ mkdir -p <Slim Bootloader Dir>/PayloadPkg/PayloadBins/
+   $ cp <U-Boot Dir>/u-boot-dtb.bin <Slim Bootloader Dir>/PayloadPkg/PayloadBins/u-boot-dtb.bin
+
+Build Instruction for Slim Bootloader for QEMU target
+-----------------------------------------------------
+
+Slim Bootloader supports multiple payloads, and a board of Slim Bootloader
+detects its target payload by PayloadId in board configuration.
+The PayloadId can be any 4 Bytes value.
+
+1. Update PayloadId. Let's use 'U-BT' as an example::
+
+    $ vi Platform/QemuBoardPkg/CfgData/CfgDataExt_Brd1.dlt
+    -GEN_CFG_DATA.PayloadId                     | 'AUTO'
+    +GEN_CFG_DATA.PayloadId                     | 'U-BT'
+
+2. Update payload text base. PAYLOAD_EXE_BASE must be the same as U-Boot
+   CONFIG_SYS_TEXT_BASE in board/intel/slimbootloader/Kconfig.
+   PAYLOAD_LOAD_HIGH must be 0::
+
+    $ vi Platform/QemuBoardPkg/BoardConfig.py
+    +               self.PAYLOAD_LOAD_HIGH    = 0
+    +               self.PAYLOAD_EXE_BASE     = 0x00100000
+
+3. Build QEMU target. Make sure u-boot-dtb.bin and U-BT PayloadId
+   in build command. The output is Outputs/qemu/SlimBootloader.bin::
+
+   $ python BuildLoader.py build qemu -p "OsLoader.efi:LLDR:Lz4;u-boot-dtb.bin:U-BT:Lzma"
+
+4. Launch Slim Bootloader on QEMU.
+   You should reach at U-Boot serial console::
+
+   $ qemu-system-x86_64 -machine q35 -nographic -serial mon:stdio -pflash Outputs/qemu/SlimBootloader.bin
+
+Build Instruction for Slim Bootloader for LeafHill (APL) target
+--------------------------------------------------------------
+
+LeafHill is using PCI UART2 device as a serial port.
+For MEM32 serial port, CONFIG_SYS_NS16550_MEM32 needs to be enabled in U-Boot.
+
+1. Enable CONFIG_SYS_NS16550_MEM32 in U-Boot::
+
+    $ vi include/configs/slimbootloader.h
+    +#define CONFIG_SYS_NS16550_MEM32
+     #ifdef CONFIG_SYS_NS16550_MEM3
+
+2. Build U-Boot::
+
+   $ make disclean
+   $ make slimbootloader_defconfig
+   $ make all
+
+3. Copy u-boot-dtb.bin to Slim Bootloader.
+   Slim Bootloader looks for a payload from the specific location.
+   Copy the build u-boot-dtb.bin to the expected location::
+
+   $ mkdir -p <Slim Bootloader Dir>/PayloadPkg/PayloadBins/
+   $ cp <U-Boot Dir>/u-boot-dtb.bin <Slim Bootloader Dir>/PayloadPkg/PayloadBins/u-boot-dtb.bin
+
+4. Update PayloadId. Let's use 'U-BT' as an example::
+
+    $ vi Platform/ApollolakeBoardPkg/CfgData/CfgData_Int_LeafHill.dlt
+    -GEN_CFG_DATA.PayloadId                     | 'AUTO
+    +GEN_CFG_DATA.PayloadId                     | 'U-BT'
+
+5. Update payload text base.
+
+* PAYLOAD_EXE_BASE must be the same as U-Boot CONFIG_SYS_TEXT_BASE
+  in board/intel/slimbootloader/Kconfig.
+* PAYLOAD_LOAD_HIGH must be 0::
+
+    $ vi Platform/ApollolakeBoardPkg/BoardConfig.py
+    +               self.PAYLOAD_LOAD_HIGH    = 0
+    +               self.PAYLOAD_EXE_BASE     = 0x00100000
+
+6. Build APL target. Make sure u-boot-dtb.bin and U-BT PayloadId
+   in build command. The output is Outputs/apl/Stitch_Components.zip::
+
+   $ python BuildLoader.py build apl -p "OsLoader.efi:LLDR:Lz4;u-boot-dtb.bin:U-BT:Lzma"
+
+7. Stitch IFWI.
+
+   Refer to Apollolake_ page in Slim Bootloader document site::
+
+   $ python Platform/ApollolakeBoardPkg/Script/StitchLoader.py -i <Existing IFWI> -s Outputs/apl/Stitch_Components.zip -o <Output IFWI>
+
+8. Flash IFWI.
+
+   Use DediProg to flash IFWI. You should reach at U-Boot serial console.
+
+
+Build Instruction to use ELF U-Boot
+-----------------------------------
+
+1. Enable CONFIG_OF_EMBED::
+
+    $ vi configs/slimbootloader_defconfig
+    +CONFIG_OF_EMBED=y
+
+2. Build U-Boot::
+
+   $ make disclean
+   $ make slimbootloader_defconfig
+   $ make all
+   $ strip u-boot (removing symbol for reduced size)
+
+3. Do same steps as above
+
+* Copy u-boot (ELF) to PayloadBins directory
+* Update PayloadId 'U-BT' as above.
+* No need to set PAYLOAD_LOAD_HIGH and PAYLOAD_EXE_BASE.
+* Build Slim Bootloader. Use u-boot instead of u-boot-dtb.bin::
+
+   $ python BuildLoader.py build <qemu or apl> -p "OsLoader.efi:LLDR:Lz4;u-boot:U-BT:Lzma"
+
+.. _U-Boot: https://gitlab.denx.de/
+.. _`Slim Bootloader`: https://github.com/slimbootloader/
+.. _`Intel FSP`: https://github.com/IntelFsp/
+.. _`Getting Started`: https://slimbootloader.github.io/getting-started/
+.. _Apollolake: https://slimbootloader.github.io/supported-hardware/apollo-lake-crb.html#stitching

diff --git a/include/configs/slimbootloader.h b/include/configs/slimbootloader.h
new file mode 100644 (file)
index 0000000..e0011ed
--- /dev/null
+++ b/include/configs/slimbootloader.h
@@ -0,0 +1,62 @@
+/* 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>
+
+/*
+ * By default, CONFIG_SYS_NS16550_PORT_MAPPED is enabled for port io serial.
+ * To use mmio base serial, enable CONFIG_SYS_NS16550_MEM32 and disable
+ * CONFIG_SYS_NS16550_PORT_MAPPED until ns16550 driver supports serial port
+ * configuration in run-time.
+ *
+ * #define CONFIG_SYS_NS16550_MEM32
+ * #undef CONFIG_SYS_NS16550_PORT_MAPPED
+ */
+#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"
+
+/*
+ * Override CONFIG_EXTRA_ENV_SETTINGS in x86-common.h
+ */
+#undef CONFIG_EXTRA_ENV_SETTINGS
+#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"
+
+/*
+ * Override CONFIG_BOOTCOMMAND in x86-common.h
+ */
+#undef CONFIG_BOOTCOMMAND
+#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__ */