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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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README |
Summary ======= This document covers various features of the 'omap5_uevm' build and some related uses. eMMC boot partition use ======================= It is possible, depending on SYSBOOT configuration to boot from the eMMC boot partitions using (name depending on documentation referenced) Alternative Boot operation mode or Boot Sequence Option 1/2. In this example we load MLO and u-boot.img from the build into DDR and then use 'mmc bootbus' to set the required rate (see TRM) and 'mmc partconfig' to set boot0 as the boot device. U-Boot # setenv autoload no U-Boot # usb start U-Boot # dhcp U-Boot # mmc dev 1 1 U-Boot # tftp ${loadaddr} omap5uevm/MLO U-Boot # mmc write ${loadaddr} 0 100 U-Boot # tftp ${loadaddr} omap5uevm/u-boot.img U-Boot # mmc write ${loadaddr} 300 400 U-Boot # mmc bootbus 1 2 0 2 U-Boot # mmc partconf 1 1 1 0