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| author | Bin Meng <bmeng.cn@gmail.com> | 2022-03-28 10:43:49 +0800 |
|---|---|---|
| committer | Heinrich Schuchardt <heinrich.schuchardt@canonical.com> | 2022-03-31 19:06:16 +0200 |
| commit | 71474127bcf7e01b2145d78792522cd78380e1c9 (patch) | |
| tree | d6a0be702c2c6774f5ca1e8bd15b8a0961f57fa7 /doc | |
| parent | 830b5936c37e44b3cee4dc9a4299928cad030991 (diff) | |
| download | u-boot-71474127bcf7e01b2145d78792522cd78380e1c9.zip u-boot-71474127bcf7e01b2145d78792522cd78380e1c9.tar.gz u-boot-71474127bcf7e01b2145d78792522cd78380e1c9.tar.bz2 | |
doc: usage: Convert README.vxworks to reST
This converts the existing README.vxworks to reST, and puts it under
the doc/usage/os directory.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/usage/index.rst | 8 | ||||
| -rw-r--r-- | doc/usage/os/vxworks.rst (renamed from doc/README.vxworks) | 22 |
2 files changed, 21 insertions, 9 deletions
diff --git a/doc/usage/index.rst b/doc/usage/index.rst index 5bfe31a..a16deee 100644 --- a/doc/usage/index.rst +++ b/doc/usage/index.rst @@ -53,3 +53,11 @@ Shell commands cmd/true cmd/ums cmd/wdt + +Booting OS +---------- + +.. toctree:: + :maxdepth: 1 + + os/vxworks diff --git a/doc/README.vxworks b/doc/usage/os/vxworks.rst index 12a0d74..184042f 100644 --- a/doc/README.vxworks +++ b/doc/usage/os/vxworks.rst @@ -1,11 +1,10 @@ -# SPDX-License-Identifier: GPL-2.0+ -# -# Copyright (C) 2013, Miao Yan <miao.yan@windriver.com> -# Copyright (C) 2015-2018, Bin Meng <bmeng.cn@gmail.com> -# Copyright (C) 2019, Lihua Zhao <lihua.zhao@windriver.com> +.. SPDX-License-Identifier: GPL-2.0+ +.. Copyright (C) 2013, Miao Yan <miao.yan@windriver.com> +.. Copyright (C) 2015-2018, Bin Meng <bmeng.cn@gmail.com> +.. Copyright (C) 2019, Lihua Zhao <lihua.zhao@windriver.com> -VxWorks Support -=============== +VxWorks +======= This document describes the information about U-Boot loading VxWorks kernel. @@ -20,7 +19,7 @@ With CONFIG_EFI_LOADER option, it's possible to chain load a VxWorks x86 kernel via the UEFI boot loader application for VxWorks loaded by 'bootefi' command. VxWorks 7 on PowerPC and ARM ---------------------------- +---------------------------- From VxWorks 7, VxWorks starts adopting device tree as its hardware description mechanism (for PowerPC and ARM), thus requiring boot interface changes. This section will describe the new interface. @@ -37,17 +36,21 @@ is cleared. The calling convention is described below: For PowerPC, the calling convention of the new VxWorks entry point conforms to the ePAPR standard, which is shown below (see ePAPR for more details): +.. code-block:: c + void (*kernel_entry)(fdt_addr, 0, 0, EPAPR_MAGIC, boot_IMA, 0, 0) For ARM, the calling convention is shown below: +.. code-block:: c + void (*kernel_entry)(void *fdt_addr) When using the Linux compatible standard DTB, the calling convention of VxWorks entry point is exactly the same as the Linux kernel. When booting a VxWorks 7 kernel (uImage format), the parameters passed to bootm -is like below: +is like below:: bootm <kernel image address> - <device tree address> @@ -108,6 +111,7 @@ BIOS of the graphics card first. CONFIG_FRAMEBUFFER_SET_VESA_MODE need remain set but care must be taken at which VESA mode is to be set. The supported pixel format is 32-bit RGBA, hence the available VESA mode can only be one of the following: + * FRAMEBUFFER_VESA_MODE_10F * FRAMEBUFFER_VESA_MODE_112 * FRAMEBUFFER_VESA_MODE_115 |