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doc: intel: Update serial driver changes in slimbootloader.rst

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Now, Slim Bootloader uses NS16550_DYNAMIC to support serial port
configuration at runtime, so no more code change is required.
Therefore, remove unnecessary steps and fix minor typo.

Signed-off-by: Aiden Park <aiden.park@intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Park, Aiden 2019-12-18 05:56:29 +00:00 committed by Bin Meng
parent 18416ba119
commit a6302b7085
1 changed files with 8 additions and 27 deletions
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35
doc/board/intel/slimbootloader.rst
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@ -111,35 +111,16 @@ Download it from http://downloads.yoctoproject.org/releases/yocto/yocto-2.0/mach
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.
Prepare U-Boot and Slim Bootloader as described at the beginning of this page.
Also, the PayloadId needs to be set for APL board.
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::
1. 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.
2. Update payload text base.
* PAYLOAD_EXE_BASE must be the same as U-Boot CONFIG_SYS_TEXT_BASE
in board/intel/slimbootloader/Kconfig.
@ -149,18 +130,18 @@ For MEM32 serial port, CONFIG_SYS_NS16550_MEM32 needs to be enabled in U-Boot.
+ self.PAYLOAD_LOAD_HIGH = 0
+ self.PAYLOAD_EXE_BASE = 0x00100000
6. Build APL target. Make sure u-boot-dtb.bin and U-BT PayloadId
3. 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.
4. 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.
5. Flash IFWI.
Use DediProg to flash IFWI. You should reach at U-Boot serial console.
@ -175,7 +156,7 @@ Build Instruction to use ELF U-Boot
2. Build U-Boot::
$ make disclean
$ make distclean
$ make slimbootloader_defconfig
$ make all
$ strip u-boot (removing symbol for reduced size)