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The Linux coding style guide (Documentation/process/coding-style.rst) clearly says: It's a **mistake** to use typedef for structures and pointers. Besides, using typedef for structures is annoying when you try to make headers self-contained. Let's say you have the following function declaration in a header: void foo(bd_t *bd); This is not self-contained since bd_t is not defined. To tell the compiler what 'bd_t' is, you need to include <asm/u-boot.h> #include <asm/u-boot.h> void foo(bd_t *bd); Then, the include direcective pulls in more bloat needlessly. If you use 'struct bd_info' instead, it is enough to put a forward declaration as follows: struct bd_info; void foo(struct bd_info *bd); Right, typedef'ing bd_t is a mistake. I used coccinelle to generate this commit. The semantic patch that makes this change is as follows: <smpl> @@ typedef bd_t; @@ -bd_t +struct bd_info </smpl> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> |
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| helios4.c | ||
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Update from original Marvell U-Boot to mainline U-Boot: ------------------------------------------------------- Generate the U-Boot image with these commands: $ make helios4_defconfig $ make The resulting image including the SPL binary with the full DDR setup is "u-boot-spl.kwb". Now all you need to do is copy this image on a SD card. For example with this command: $ sudo dd if=u-boot-spl.kwb of=/dev/sdX bs=512 seek=1 Please use the correct device node for your setup instead of "/dev/sdX" here! Boot selection: --------------- Before powering up the board, boot selection should be done via the SW1 dip switch (0: OFF, 1: ON): - SPI: 00010 - SD/eMMC: 00111 - SATA1: 11100 - UART: 11110 Boot from UART: --------------- Connect the on-board micro-USB (CF Pro: CON11, CF Base: CON5) to your host. Set the SW1 DIP switches to UART boot (see above). Run the following command to initiate U-Boot download: ./tools/kwboot -p -b u-boot-spl.kwb /dev/ttyUSBX Use the correct UART device node for /dev/ttyUSBX. When download finishes start your favorite terminal emulator on /dev/ttyUSBX.