# Directories & files removed with 'make mrproper'
MRPROPER_DIRS += include/config include/generated spl tpl \
- .tmp_objdiff
+ .tmp_objdiff doc/output
MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
drivers/video/fonts/*.S
select ARM64
select MT8512
help
- The MediaTek MT8512 is a ARM64-based SoC with a quad-core Cortex-A53.
+ The MediaTek MT8512 is a ARM64-based SoC with a dual-core Cortex-A53.
including UART, SPI, USB2.0 and OTG, SD and MMC cards, NAND, PWM,
- Ethernet, IR TX/RX, I2C, I2S, S/PDIF, and built-in Wi-Fi / Bluetooth combo
- chip and several DDR3 and DDR4 options.
+ IR RX, I2C, I2S, S/PDIF, and built-in Wi-Fi / Bluetooth digital
+ and several LPDDR3 and LPDDR4 options.
config TARGET_MT8516
bool "MediaTek MT8516 SoC"
uint32_t crc;
env_t *ep = (env_t *)ptr;
+ if (size <= offsetof(env_t, data)) {
+ printf("## Error: Invalid size 0x%zX\n", size);
+ return 1;
+ }
+
size -= offsetof(env_t, data);
memcpy(&crc, &ep->crc, sizeof(crc));
config BOOTARGS
string "Boot arguments"
- depends on USE_BOOTARGS
+ depends on USE_BOOTARGS && !USE_DEFAULT_ENV_FILE
help
This can be used to pass arguments to the bootm command. The value of
CONFIG_BOOTARGS goes into the environment value "bootargs". Note that
config BOOTCOMMAND
string "bootcmd value"
- depends on USE_BOOTCOMMAND
+ depends on USE_BOOTCOMMAND && !USE_DEFAULT_ENV_FILE
default "run distro_bootcmd" if DISTRO_DEFAULTS
help
This is the string of commands that will be used as bootcmd and if
config PREBOOT
string "preboot default value"
- depends on USE_PREBOOT
+ depends on USE_PREBOOT && !USE_DEFAULT_ENV_FILE
default ""
help
This is the default of "preboot" environment variable.
bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
return err;
}
+ /* We need the decompressed image size in the next steps */
+ images->os.image_len = load_end - load;
flush_cache(flush_start, ALIGN(load_end, ARCH_DMA_MINALIGN) - flush_start);
/*
* Use the address following the image as target address for the
- * device tree.
+ * device tree. Load address is aligned to 8 bytes to match the required
+ * alignment specified for linux arm [1] and arm 64 [2] booting
+ * [1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/arm/booting.rst#n126
+ * [2]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/arm64/booting.rst#n45
*/
- image_info.load_addr = spl_image->load_addr + spl_image->size;
+ image_info.load_addr = ALIGN(spl_image->load_addr + spl_image->size, 8);
/* Figure out which device tree the board wants to use */
node = spl_fit_get_image_node(fit, images, FIT_FDT_PROP, index++);
--- /dev/null
+Building with GCC
+=================
+
+Dependencies
+------------
+
+For building U-Boot you need a GCC compiler for your host platform. If you
+are not building on the target platform you further need a GCC cross compiler.
+
+Debian based
+~~~~~~~~~~~~
+
+On Debian based systems the cross compiler packages are named
+gcc-<architecture>-linux-gnu.
+
+You could install GCC and the GCC cross compiler for the ARMv8 architecture with
+
+.. code-block:: bash
+
+ sudo apt-get gcc gcc-aarch64-linux-gnu
+
+Depending on the build targets further packages maybe needed
+
+.. code-block:: bash
+
+ sudo apt-get install bc bison build-essential coccinelle \
+ device-tree-compiler dfu-util efitools flex gdisk liblz4-tool \
+ libguestfs-tools libncurses-dev libpython3-dev libsdl2-dev libssl-dev \
+ lzma-alone openssl python3 python3-coverage python3-pyelftools \
+ python3-pytest python3-sphinxcontrib.apidoc python3-sphinx-rtd-theme swig
+
+Prerequisites
+-------------
+
+For some boards you have to build prerequisite files before you can build
+U-Boot, e.g. for the some boards you will need to build the ARM Trusted Firmware
+beforehand. Please, refer to the board specific documentation
+:doc:`../board/index`.
+
+Configuration
+-------------
+
+Directory configs/ contains the template configuration files for the maintained
+boards following the naming scheme::
+
+ <board name>_defconfig
+
+These files have been stripped of default settings. So you cannot use them
+directly. Instead their name serves as a make target to generate the actual
+configuration file .config. For instance the configuration template for the
+Odroid C2 board is called odroid-c2_defconfig. The corresponding .config file
+is generated by
+
+.. code-block:: bash
+
+ make odroid-c2_defconfig
+
+You can adjust the configuration using
+
+.. code-block:: bash
+
+ make menuconfig
+
+Building
+--------
+
+When cross compiling you will have to specify the prefix of the cross-compiler.
+You can either specify the value of the CROSS_COMPILE variable on the make
+command line or export it beforehand.
+
+.. code-block:: bash
+
+ CROSS_COMPILE=<compiler-prefix> make
+
+Assuming cross compiling on Debian for ARMv8 this would be
+
+.. code-block:: bash
+
+ CROSS_COMPILE=aarch64-linux-gnu- make
+
+Build parameters
+~~~~~~~~~~~~~~~~
+
+A list of available parameters for the make command can be obtained via
+
+.. code-block:: bash
+
+ make help
+
+You can speed up compilation by parallelization using the -j parameter, e.g.
+
+.. code-block:: bash
+
+ CROSS_COMPILE=aarch64-linux-gnu- make -j$(nproc)
+
+Further important build parameters are
+
+* O=<dir> - generate all output files in directory <dir>, including .config
+* V=1 - verbose build
+
+Other build targets
+~~~~~~~~~~~~~~~~~~~
+
+A list of all make targets can be obtained via
+
+.. code-block:: bash
+
+ make help
+
+Important ones are
+
+* clean - remove most generated files but keep the configuration
+* mrproper - remove all generated files + config + various backup files
+
+Installation
+------------
+
+The process for installing U-Boot on the target device is device specific.
+Please, refer to the board specific documentation :doc:`../board/index`.
.. toctree::
:maxdepth: 2
+ source
+ gcc
clang
tools
--- /dev/null
+Obtaining the source
+=====================
+
+The source of the U-Boot project is maintained in a Git repository.
+
+You can download the source via
+
+.. code-block:: bash
+
+ git clone https://gitlab.denx.de/u-boot/u-boot.git
+
+A mirror of the source is maintained on Github
+
+.. code-block:: bash
+
+ git clone https://github.com/u-boot/u-boot
+
+The released versions are available as tags which use the naming scheme::
+
+ v<year>.<month>
+
+Release candidates are named::
+
+ v<year>.<month>-rc<number>
+
+To checkout the October 2020 release you would use:
+
+.. code-block:: bash
+
+ git checkout v2020.10
}
while (left_to_write > 0) {
+ loff_t block_start = offset & ~(loff_t)(mtd->erasesize - 1);
size_t block_offset = offset & (mtd->erasesize - 1);
size_t write_size, truncated_write_size;
WATCHDOG_RESET();
- if (nand_block_isbad(mtd, offset & ~(mtd->erasesize - 1))) {
- printf("Skip bad block 0x%08llx\n",
- offset & ~(mtd->erasesize - 1));
+ if (nand_block_isbad(mtd, block_start)) {
+ printf("Skip bad block 0x%08llx\n", block_start);
offset += mtd->erasesize - block_offset;
continue;
}
err = clk_enable(&port->sys_ck);
if (err)
- goto exit;
+ goto err_sys_clk;
err = reset_assert(&port->reset);
if (err)
- goto exit;
+ goto err_reset;
err = reset_deassert(&port->reset);
if (err)
- goto exit;
+ goto err_reset;
err = generic_phy_init(&port->phy);
if (err)
- goto exit;
+ goto err_phy_init;
err = generic_phy_power_on(&port->phy);
if (err)
- goto exit;
+ goto err_phy_on;
if (!mtk_pcie_startup_port(port))
return;
pr_err("Port%d link down\n", port->slot);
-exit:
+
+ generic_phy_power_off(&port->phy);
+err_phy_on:
+ generic_phy_exit(&port->phy);
+err_phy_init:
+err_reset:
+ clk_disable(&port->sys_ck);
+err_sys_clk:
mtk_pcie_port_free(port);
}
Nothing.
"""
- response = state_test_env.u_boot_console.run_command('echo $%s' % var)
+ response = state_test_env.u_boot_console.run_command('echo ${%s}' % var)
assert response == ''
def validate_set(state_test_env, var, value):
projects / platform / kernel / u-boot.git / commitdiff